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Wed Dec 30 23:38:55 1998 Jeffrey A Law (
* (adddi_dilshr32): Allow all operands to be registers too.
(adddi_dishl32): Similarly.
* cse.c (invalidate_skipped_block): Call invalidate_from_clobbers
for each insn in the skipped block.
* reload1.c (reload_as_needed): Verify that the insn satisfies its
constraints after replacing a register address with an autoincrement
address for reload inheritance purposes.
* (doubleword shifts): Avoid namespace pollution.
Wed Dec 30 23:00:28 1998 David O'Brien <>
* (FreeBSD ELF): Needs special crt files.
Wed Dec 30 22:50:13 1998 Geoffrey Noer <>
* i386/xm-cygwin.h: Change DIR_SEPARATOR to forward slash.
1998-12-30 Andreas Schwab <>
* loop.c (check_dbra_loop): While reversing the loop, if the
comparison value has a VOID mode use the mode of the other operand
to compute the mask.
Wed Dec 30 22:24:00 1998 Michael Meissner <>
* ({save,restore}_stack_function): Take 2 operands to
avoid warnings in compiling explow.c.
(patch from Ken Raeburn,
* rs6000.c (rs6000_stack_info): Force 8-byte alignment of
fpmem_offset. Compute total size after that, and then
rs6000_fpmem_offset using both values.
Mon Dec 28 19:26:32 1998 Gerald Pfeifer <>
* gcc.texi (Non-bugs): ``Empty'' loops will be optimized away in
the future; indeed that already happens in some cases.
Tue Dec 29 11:58:53 1998 Richard Henderson <>
* sparc.c (input_operand): Recognize (const (constant_p_rtx)).
(arith_operand): Remove constant_p_rtx handling.
(const64_operand, const64_high_operand): Likewise.
(arith11_operand, arith10_operand, arith_double_operand): Likewise.
(arith11_double_operand, arith10_double_operand, small_int): Likewise.
(small_int_or_double, uns_small_int, zero_operand): Likewise.
* sparc.h (PREDICATE_CODES): Likewise.
* rtl.h (CONSTANT_P): Remove CONSTANT_P_RTX.
Tue Dec 29 11:32:54 1998 Richard Kenner <>
* rtl.def (CONSTANT_P_RTX): Clarify commentary.
* expr.c (expand_builtin, case BUILT_IN_CONSTANT_P): Rework to
consider constant CONSTRUCTOR constant and to defer some cases
to cse.
* cse.c (fold_rtx, case CONST): Add handling for CONSTANT_P_RTX.
* regclass.c (reg_scan_mark_refs, case CONST): Likewise.
Tue Dec 29 11:30:10 1998 Richard Henderson <>
* expr.c (init_expr_once): Kill can_handle_constant_p recognition.
* cse.c (fold_rtx, case 'x'): Remove standalone CONSTANT_P_RTX code.
* alpha.c (reg_or_6bit_operand): Remove CONSTANT_P_RTX handling.
(reg_or_8bit_operand, cint8_operand, add_operand): Likewise.
(sext_add_operand, and_operand, or_operand): Likewise.
(reg_or_cint_operand, some_operand, input_operand): Likewise.
* alpha.h (PREDICATE_CODES): Likewise.
Sat Dec 26 23:26:26 1998 Jeff Law (
* version.c: Bump for snapshot.
Sat Dec 26 09:17:04 1998 Jeffrey A Law (
* gengenrtl.c (gencode): Always use bzero to clear memory instead
of dangerous casts and stores.
* (compare, gnucompare): Add missing else true clauses.
Fri Dec 25 23:00:56 1998 Jeffrey A Law (
* (builtin_longjmp): Add missing "DONE".
Thu Dec 24 10:39:57 1998 Stan Cox <>
* gcc.c (execute): Enable -pipe with win32.
Wed Dec 23 10:27:44 1998 Nick Clifton <>
* config/arm/t-arm-elf: Add multiplib option for leading
* config/arm/thumb.h (ASM_OUTPUT_LABELREF): Use variable
'user_label_prefix' rather than macro USER_LABEL_PREFIX.
(thumb_shiftable_const): Use macro 'BASE_REG_CLASS' rather
than variable 'reload_address_base_reg_class'. [Note this
change is unrelated to the others in this patch].
* config/arm/unknown-elf.h (USER_LABEL_PREFIX): Default to no
leading underscore.
Wed Dec 23 09:51:32 1998 Kaveh R. Ghazi <>
* alias.c (record_alias_subset): Remove ignored `&'.
(init_alias_once): Likewise.
* c-lex.c (UNGETC): Cast first argument of comma expression to void.
* config/mips/mips.c (mips_asm_file_end): Cast the result of
fwrite to `int' when comparing against one.
* config/mips/mips.h (CAN_ELIMINATE): Add parens around && within ||.
(INITIAL_ELIMINATION_OFFSET): Add braces to avoid ambiguous `else'.
* cse.c (rehash_using_reg): Change type of variable `i' to
unsigned int.
* dwarf2out.c (initial_return_save): Cast -1 to unsigned before
assigning it to one.
* except.c (duplicate_eh_handlers): Remove unused variable `tmp'.
* final.c (final_scan_insn): Likewise for variable `i'.
(output_asm_insn): Cast a char to unsigned char when used as an
array index.
* gcse.c (compute_pre_ppinout): Cast -1 to SBITMAP_ELT_TYPE when
assigning it to one.
* loop.c (strength_reduce): Remove unused variables `count' and `temp'.
* recog.c (preprocess_constraints): Cast a char to unsigned char
when used as an array index.
* regmove.c (find_matches): Likewise.
* reload1.c (calculate_needs): Add default case in switch.
(eliminate_regs_in_insn): Initialize variable `offset'.
(set_offsets_for_label): Change type of variable `i' to unsigned.
(reload_as_needed): Wrap variable `i' in macro check on
* scan-decls.c (scan_decls): Mark parameters `argc' and `argv'
with ATTRIBUTE_UNUSED. Cast variable `start_written' to size_t
when comparing against one.
* stor-layout.c (layout_decl): Cast maximum_field_alignment to
unsigned when comparing against one. Likewise for
(layout_record): Cast record_align to int when comparing against a
signed value.
(layout_type): Cast TYPE_ALIGN() to int when comparing against a
signed value.
* tree.c (get_identifier): Cast variable `len' to unsigned when
comparing against one.
(maybe_get_identifier): Likewise
Wed Dec 23 00:10:01 1998 Jeffrey A Law (
* toplev.c (rest_of_compilation): Do not set reload_completed.
* reload1.c (reload): Set reload_completed before calling
Tue Dec 22 23:58:31 1998 Richard Henderson <>
* reload1.c (emit_reload_insns): Check `set' not null before use.
Tue Dec 22 15:15:45 1998 Nick Clifton <>
* rtlanal.c (multiple_sets): Change type of 'found' from 'rtx' to
Tue Dec 22 13:55:44 1998 Theodore Papadopoulo <>
* halfpic.c (half_pic_encode): Delete redundant code.
Tue Dec 22 13:02:22 1998 Michael Meissner <>
* toplev.c (main): Delete handling of -dM as a preprocessor
Mon Dec 21 17:39:38 1998 Michael Meissner <>
* toplev.c (main): Don't emit any warnings when using -dD, -dM, or
-dI, which are handled by the preprocessor.
Sun Dec 20 16:13:44 1998 John F. Carr <>
* Handle Digital UNIX 5.x the same as 4.x.
* i386/sol2.h: Define LOCAL_LABEL_PREFIX as ".".
Sun Dec 20 07:39:52 1998 Jeff Law (
* version.c: Bump for snapshot.
Sat Dec 19 22:24:22 1998 Jeff Law (
* version.c: Bump for snapshot.
Sat Dec 19 21:41:32 1998 Jeff Law (
* version.c: Bump for snapshot.
Sat Dec 19 09:52:27 1998 Kaveh R. Ghazi <>
* genattr.c (fatal): Qualify a char* with the `const' keyword.
* genattrtab.c (fatal, attr_printf, attr_string, write_attr_set,
write_unit_name, write_eligible_delay, expand_units,
make_length_attrs, write_attr_case, find_attr,
make_internal_attr): Likewise.
* gencheck.c (tree_codes): Likewise.
* gencodes.c (fatal): Likewise.
* genconfig.c (fatal): Likewise.
* genemit.c (fatal): Likewise.
* genextract.c (fatal, walk_rtx, copystr): Likewise.
* genflags.c (fatal): Likewise.
* genopinit.c (fatal, optabs, gen_insn): Likewise.
* genoutput.c (fatal, error, predicates): Likewise.
* genpeep.c (fatal): Likewise.
* genrecog.c (fatal, decision, pred_table, add_to_sequence,
write_tree_1, write_tree, change_state, copystr, indents): Likewise.
Thu Dec 17 18:21:49 1998 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
* (with-fast-fixincludes): Fix whitespace.
* configure: Rebuilt.
* fixincludes (c_asm.h): Wrap Digital UNIX V4.0B DEC C specific
asm() etc. function declarations in __DECC.
Thu Dec 17 13:57:23 1998 Nick Clifton <>
* expr.c (emit_move_insn_1): Only emit a clobber if the target
is a pseudo register.
Thu Dec 17 13:50:29 1998 Nick Clifton <>
* gcse.c: Include expr.h in order to get the prototype for
get_condition() which is used in delete_null_pointer_checks().
Thu Dec 17 15:58:26 1998 Kaveh R. Ghazi <>
* hwint.h: New file to consolidate HOST_WIDE_INT (etc) macros.
Thu Dec 17 12:31:12 1998 Jim Wilson <>
1998-12-17 Vladimir N. Makarov <>
* config/i60/ (extendqihi2): Fix typo (usage ',' instead of
1998-12-17 Michael Tiemann <>
* (extend*, zero_extend*): Don't generate rtl that looks
like (subreg:SI (reg:SI N) 0), because it's wrong, and it hides
optimizations from the combiner.
Thu Dec 17 08:27:03 1998 J"orn Rennecke <>
* loop.c (combine_givs_used_by_other): Don't depend on n_times_set.
Wed Dec 16 17:30:35 1998 Nick Clifton <>
* toplev.c (main): Disable optimize_size if a specific
optimization level is requested. Always set optimization
level to 2 if -Os is specified.
Wed Dec 16 16:33:04 1998 Dave Brolley <>
* objc/lang-specs.h: Pass -MD, -MMD and -MG to cc1obj if configured with
* cpplib.c (cpp_start_read): If in_fname is not initialized, try to
initialize it using fname.
1998-12-16 Zack Weinberg <>
* cpplib.c (do_include): Treat #include_next in the
primary source file as #include plus warning. Treat
#include_next in a file included by absolute path as an
error. fp == CPP_NULL_BUFFER is a fatal inconsistency.
Wed Dec 16 12:28:54 1998 Kaveh R. Ghazi <>
* cccp.c: Don't define MIN/MAX anymore.
* cpplib.c: Likewise.
* machmode.h: Likewise.
* system.h: Provide definitions for MIN/MAX.
Tue Dec 15 23:47:42 1998 Zack Weinberg <>
* fix-header.c: Don't define xstrdup here.
Wed Dec 16 05:11:04 1998 J"orn Rennecke <>
* loop.c (consec_sets_giv): New argument last_consec_insn.
(strength_reduce): Provide / use it.
Wed Dec 16 17:24:07 1998 Michael Hayes <>
* loop.h (loop_info): New field 'vtop'.
* loop.c (check_dbra_loop): Use loop_info->vtop rather than
scanning loop for vtop.
* unroll.c (subtract_reg_term, find_common_reg_term): New functions.
(loop_iterations): Use them to determine if loop has a constant
number of iterations. Set loop_info->vtop. Don't subtract
common reg term from initial_value and final_value if have a
do-while loop.
Tue Dec 15 13:49:55 1998 Jeffrey A Law (
* (addsi3 expander): Use "nonmemory_operand" for operand 2.
* (bset, bclr): Operand 0 is a read/write operand.
* (abssf2, negsf2): New expanders.
* (absdf2, abssf2, negdf2, negsf2): New expanders.
Tue Dec 15 11:55:30 1998 Nick Clifton <>
* integrate.c (copy_rtx_and_substitute): If a SUBREG is
replaced by a CONCAT whose components do not have the same
mode as the original SUBREG, use a new SUBREG to restore the
* emit-rtl.c (subreg_realpart_p): Cope with subregs containing
multiword complex values.
1998-12-15 Zack Weinberg <>
* cppalloc.c: Add xstrdup here.
* cpplib.h: Remove savestring prototype.
* cpplib.c: Remove savestring function. s/savestring/xstrdup/
* cppfiles.c: s/savestring/xstrdup/ throughout.
1998-12-15 Zack Weinberg <>
* cpplib.c: Make all directive handlers read their own
(struct directive): Remove last two arguments from FUNC
member prototype. Remove `command_reads_line' member
(directive_table): Remove initializations of
command_reads_line flag. Pretty-print.
(eval_if_expression, do_define, do_line, do_include,
do_undef, do_error, do_pragma, do_ident, do_if, do_xifdef,
do_else, do_elif, do_sccs, do_assert, do_unassert,
do_warning): Take only two args.
(cpp_define): Call do_define with two args and the text to
define stuffed into a buffer.
(make_assertion): Call do_assert with two args.
(handle_directive): Call do_line with two args. Call
kt->func with two args. Remove command_reads_line
(do_define, do_undef, do_error, do_warning, do_pragma,
do_sccs): Read the rest of the line here.
(do_ident): Gobble rest of line, as cccp does.
(cpp_undef): New function.
(cpp_start_read): Call cpp_undef instead of do_undef.
1998-12-15 Zack Weinberg <>
* cpphash.h (union hash_value): Remove `keydef' member, add a
`struct hashnode *aschain' member for #assert.
* cpplib.c (struct tokenlist_list, struct
assertion_hashnode): Delete structure definitions.
(assertion_install, assertion_lookup, delete_assertion,
check_assertion, compare_token_lists, reverse_token_list,
read_token_list, free_token_list): Delete functions.
(parse_assertion): New function.
(cpp_cleanup): Don't destroy the assertion_hashtable.
(do_assert): Gut and rewrite. #assert foo (bar) places
entries for `#foo' and `#foo(bar)' in the macro hash table,
type T_ASSERT. The value union's `aschain' member is used
to chain all answers for a given predicate together.
(do_unassert): Also rewritten. Take an un-asserted
answer off the chain from its predicate and call
delete_macro on the hashnode, or walk a predicate chain
calling delete_macro on all the entries.
(cpp_read_check_assertion): Simply call parse_assertion to
get the canonical assertion name, and look that up in the
hash table.
* cpplib.h (ASSERTION_HASHNODE,ASSERTION_HASHSIZE,assertion_hashtab):
* cpphash.c (install): Use bcopy instead of an explicit loop
to copy the macro name.
* cppexp.c (cpp_lex): Convert the result of
cpp_read_check_assertion to a `struct operation' directly;
don't go through parse_number.
Tue Dec 15 18:27:39 1998 J"orn Rennecke <>
* loop.h (struct induction): Delete times_used member.
* loop.c (n_times_set): Rename to set_in_loop. Changed all users.
(n_times_used): Rename to n_times_set. Changed all users.
(scan_loop): Free reg_single_usage before strength reduction.
(record_giv, combine_givs): Remove handling of times_used member.
(combine_givs_used_once): Rename to:
(combine_givs_used_by_other) . Changed all callers.
Tue Dec 15 01:45:26 1998 Jason Merrill <>
* dwarf2out.c (gen_struct_or_union_type_die): Check AGGREGATE_TYPE_P
instead of TREE_CODE_CLASS == 't'.
(gen_type_die): Likewise.
(scope_die_for): Ignore FUNCTION_TYPE "scopes".
Mon Dec 14 16:23:27 1998 Jim Wilson <>
* real.c (endian): Disable last change unless
HOST_BITS_PER_WIDE_INT is greater than 32.
Mon Dec 14 17:13:36 1998 Andrew MacLeod <>
* output.h (force_data_section): New prototype.
* varasm.c (force_data_section): New function to force the
data section, regardless of what in_section thinks.
* dwarf2out.c (output_call_frame_info): Call force_data_section
since varasm may not realize we've changes sections.
Mon Dec 14 14:09:34 1998 Nick Clifton <>
* reload1.c (reload): Delete REG_RETVAL and REG_LIBCALL notes
after completing reload.
* rtl.texi: Document that REG_RETVAL and REG_LIBCALL are
deleted after reload.
Mon Dec 14 01:39:28 1998 Jeffrey A Law (
* rtl.h (multiple_sets): Fix prototype.
* rtlanal.c (multiple_sets): Fix return type.
Sun Dec 13 12:43:58 1998 Jeff Law (
* version.c: Bump for snapshot.
Sun Dec 13 01:05:22 1998 Jeff Law (
* version.c: Bump for snapshot.
1998-12-13 Manfred Hollstein <>
* protoize.c (fputs): Wrap extern declaration in #ifndef fputs.
Sun Dec 13 00:24:14 1998 J"orn Rennecke <>
* rtl.h (recompute_reg_usage): Add second argument.
* flow.c (recompute_reg_usage): Likewise.
* toplev.c (rest_of_compilation): Supply second argument to
* reload1.c (compute_use_by_pseudos): Allow reg_renumber[regno] < 0
after reload.
Sat Dec 12 23:39:10 1998 Jeffrey A Law (
* m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcpu32.
(MULTILIB_MATCHES): -m68332 now uses mcpu32 libraries, not m68000.
(MULTILIB_EXCEPTIONS): Don't build 68881 libraries for m68000,
mcpu32 or m5200.
* i386/next.h (ASM_OUTPUT_ALIGN): Use 0x90 for fill character.
* rtlanal.c (multiple_sets): New function.
* rtl.h (multiple_sets): Declare it.
* local-alloc.c (wipe_dead_reg): Use it.
* global.c (global_conflicts): Likewise.
Sat Dec 12 22:13:02 1998 Mark Mitchell <>
* global.c (record_conflicts): Don't use an array of shorts to
store an array of ints.
(global_conflicts): Likewise.
Sat Dec 12 16:49:24 1998 Richard Henderson <>
* alpha.c (alpha_expand_block_move): mode_for_size expects
bits, not bytes. Infer extra alignment from addressof.
1998-12-11 Michael Meissner <>
* rs6000/sysv4.h (ASM_OUTPUT_ALIGNED_LOCAL): Put small data in the
.sbss section, not .sdata.
1998-12-11 Manfred Hollstein <>
* cccp.c: Do not #include <sys/stat.h> here; this is already done
by "system.h".
* collect2.c: Likewise.
* cpplib.h: Likewise.
* gcc.c: Likewise.
* gcov.c: Likewise.
* getpwd.c: Likewise.
* protoize.c: Likewise.
* toplev.c: Likewise.
* cpplib.h (HOST_WIDE_INT): Get definition from "machmode.h"
and don't try to define it here.
* (cppmain.o): Depend on machmode.h.
(cpplib.o): Likewise.
(cpperror.o): Likewise.
(cppexp.o): Likewise.
(cppfiles.o): Likewise.
(cpphash.o): Likewise.
(cppalloc.o): Likewise.
(fix-header.o): Likewise.
(scan-decls.o): Likewise.
Fri Dec 11 11:02:49 1998 Stan Cox <>
* sh.c (print_operand): Lookup interrupt_handler attribute instead
of relying on static variable.
* (calc_live_regs): Likewise.
* (sh_pragma_insert_attributes): Create interrupt_handler
attribute if a pragma was specified.
* (sh_valid_machine_decl_attribute): Don't set static flag.
Fri Dec 11 12:56:07 1998 J"orn Rennecke <>
* reload1.c (reload_combine): Use BASIC_BLOCK_LIVE_AT_START
to determine if a register is live at a jump destination.
Everything is dead at a BARRIER.
Thu Dec 10 16:02:06 1998 Jim Wilson <>
* cse.c (simplify_unary_operation): Sign-extend constants when
they have the most significant bit set for the target.
* real.c (endian): Sign-extend 32 bit output values on a 64 bit
* m32r/m32r.c (m32r_expand_prologue): Store pretend_size in
HOST_WIDE_INT temporary before negating it.
* m32r/ (movsi_insn+1): Use ~0xffff instead of 0xffff0000.
Thu Dec 10 15:05:59 1998 Dave Brolley <>
* objc/objc-act.c (lang_init_options): Enclose cpplib related code in
Thu Dec 10 13:39:46 1998 Kaveh R. Ghazi <>
* collect2.h: New header file for prototypes.
* (collect2.o, tlink.o): Depend on collect2.h.
* collect2.c: Include collect2.h.
* tlink.c: Likewise.
Wed Dec 9 23:55:11 1998 Jeffrey A Law (
* flow.c: Update some comments.
Wed Dec 9 15:29:26 1998 Dave Brolley <>
* objc/objc-act.c (cpp_initialized): Removed.
(lang_init_options): Initialize cpplib.
(lang_decode_option): Move initialization of cpplib to
* c-lang.c (parse_options,parse_in): Added.
(lang_init_options): Initialized cpplib here.
* c-decl.c (parse_options,cpp_initialized): Removed.
(c_decode_option): Move initialization of cpplib to
Wed Dec 9 19:36:57 1998 J"orn Rennecke <>
* reload1.c (reload_combine, reload_combine_note_store):
Make STORE_RUID always valid.
(reload_combine): Check if BASE is clobbered too early.
Wed Dec 9 09:53:58 1998 Nick Clifton <>
* reload.c (find_reloads): Display the insn that cannot be
Wed Dec 9 12:15:26 1998 Dave Brolley <>
* cccp.c (create_definition): Fix end of buffer logic.
Wed Dec 9 10:15:45 1998 Kaveh R. Ghazi <>
* except.c (duplicate_eh_handlers, rethrow_symbol_map): Function
pointer parameters changed to use the PARAMS() macro.
Wed Dec 9 09:12:40 1998 Andrew MacLeod <>
* except.h (struct handler_info): Add handler_number field.
* except.c (gen_exception_label): EH labels no longer need to be
on the permanent obstack.
(get_new_handler): Set the label number field.
(output_exception_table_entry): Regenerate handler label reference
from the label number field.
(init_eh): Remove a blank line.
* integrate.c (get_label_from_map): Labels no longer need to be
on the permanent obstack.
Tue Dec 8 22:04:33 1998 Jim Wilson <>
* i960/i960.h (CONST_COSTS, case CONST_INT): Accept power2_operand
only when OUTER_CODE is SET.
Tue Dec 8 22:47:15 1998 J"orn Rennecke <>
* loop.c (strength_reduce): If scan_start points to the loop exit
test, be wary of subversive use of gotos inside expression statements.
Don't set maybe_multiple for a backward jump that does not
include the label under consideration into its range.
* unroll.c (biv_total_increment): Make use of maybe_multiple field.
Tue Dec 8 22:33:18 1998 J"orn Rennecke <>
* explow.c (plus_constant_wide): Don't immediately return with
result of recursive call.
Tue Dec 8 15:32:56 1998 Andrew MacLeod <>
* eh-common.h (struct eh_context): Add table_index for rethrows.
* rtl.h (enum reg_note): Add REG_EH_REGION and REG_EH_RETHROW reg notes.
(SYMBOL_REF_NEED_ADJUST): New flag indicating symbol needs to be
processed when inlined or unrolled (ie duplicated in some way).
* rtl.c (reg_note_name): Add strings for new reg_note enums.
* expr.h (rethrow_libfunc): New library decl.
* optabs.c (rethrow_libfunc): Initialize.
* except.h (struct eh_entry): Add new field 'rethrow_label'.
(new_eh_region_entry): No longer exported from except.c.
(duplicate_handlers): Renamed to duplicate_eh_handlers and
different prototype.
(rethrow_symbol_map, rethrow_used): New exported functions.
(eh_region_from_symbol): New exported function.
* except.c (create_rethrow_ref): New function to create a single
SYMBOL_REF for a rethrow region.
(push_eh_entry): Initialize a rethrow ref.
(func_eh_entry): Add a rethrow_label field.
(new_eh_region_entry): Make static, and initialize the rethrow entry.
(duplicate_eh_handlers): Create a new region, and remap labels/symbols.
(eh_region_from_symbol): Find an EH region based on its rethrow symbol.
(rethrow_symbol_map): Given a label map, maps a rethrow symbol for
a region into an appropriate new symbol.
(rethrow_used): Indicate whether a rethrow symbol has been referenced.
(expand_eh_region_end): Don't issue jump around code for new-exceptions.
(end_catch_handler): Emit a barrier for new-exceptions since
control can never drop through the end of a catch block.
(expand_end_all_catch): new-exceptions never fall through a catch
(expand_rethrow): Use __rethrow routine for new exceptions.
(output_exception_table_entry): Generate rethrow labels, if needed.
(output_exception_table): Generate start and end rethrow labels.
(init_eh): Create rethrow symbols for beginning and end of table.
(scan_region): Don't eliminate EH regions which are the targets of
* flow.c (make_edges): Add different edges for rethrow calls,
identified by having the REG_EH_RETHROW reg label.
(delete_unreachable_blocks): Don't delete regions markers which are
the target of a rethrow.
* integrate.c (save_for_inline_eh_labelmap): New callback routine to
allow save_for_inline_copying to call duplicate_eh_handlers.
(save_for_inline_copying): Call duplicate_eh_handlers instead of
exposing internal details of exception regions.
(copy_for_inline): Check if SYMBOL_REFs need adjustment.
(expand_inline_function_eh_labelmap): New callback routine to
allow expand_inline_function to call duplicate_eh_handlers.
(expand_inline_function): Call duplicate_eh_handlers instead of
exposing internal details of exception regions.
(copy_rtx_and_substitute): Adjust SYMBOL_REFS if SYMBOL_REF_NEED_ADJUST
flag is set.
* libgcc2.c (find_exception_handler): Generalize to enable it to
pick up processing where it left off last time for a rethrow.
(__unwinding_cleanup): New function. debug hook which is called before
unwinding when __throw finds there is nothing but cleanups left.
(throw_helper): Common parts of __throw extracted out for reuse.
(__throw): Common parts moved to throw_helper.
(__rethrow): New function for performing rethrows.
Tue Dec 8 13:11:04 1998 Jeffrey A Law (
* reload1.c (current_function_decl): Tweak declaration.
Tue Dec 8 10:23:52 1998 Richard Henderson <>
* c-decl.c (flag_isoc9x): Default off.
(c_decode_option): Kill -std=gnu, add -std=gnu89 and -std=gnu9x.
* cccp.c (print_help, main): Likewise.
* gcc.c (default_compilers): Update for -std=gnu*.
Tue Dec 8 01:14:46 1998 Jeffrey A Law (
* (DEMANGLE_H): Change location to shared demangle.h.
* demangle.h: Deleted.
* reload1.c (current_function_decl): Declare.
Tue Dec 8 11:58:51 1998 Kaveh R. Ghazi <>
* cpplib.c (convert_string): Use `0x00ff', not `0x00ffU'.
Tue Dec 8 09:28:36 1998 Kaveh R. Ghazi <>
* dbxout.c: If USG is defined use gstab.h, even if HAVE_STAB_H is set.
1998-12-08 Ulrich Drepper <>
* Test for availability of putc_unlocked, fputc_unlocked,
and fputs_unlocked.
* configure: Rebuilt.
* system.h: If the *_unlocked functions are available use them
instead of the locked counterparts by defining macros.
* Regenerated.
Tue Dec 8 00:34:05 1998 Mike Stump <>
* i386/bsd.h (ASM_FILE_START): Don't use dump_base_name, it is
wrong and should only be used for dump related things, not
debugging information, instead main_input_filename should be used.
Also, reuse output_file_directive if possible.
* i386/aix386ng.h (ASM_FILE_START): Likewise.
* i386/isc.h (ASM_FILE_START): Likewise.
* i386/win-nt.h (ASM_FILE_START): Likewise.
* i386/sun386.h (ASM_FILE_START): Likewise.
Mon Dec 7 23:56:28 1998 Robert Lipe <>
* (mips*-*-linux*): Handle big and little endian
* configure: Rebuilt.
Mon Dec 7 23:14:51 1998 Mike Stump <>
* emit-rtl.c: Fix typo.
Mon Dec 7 23:07:38 1998 Nathan Sidwell <>
* reload1.c (eliminate_regs): Don't do anything, if we're not
generating code.
Mon Dec 7 15:27:09 1998 DJ Delorie <>
Add comment.
* mips/mips.c (mips_select_section): Add comment.
Mon Dec 7 17:55:06 1998 Mike Stump <>
* cccp.c (ignore_escape_flag): Add support for \ as `natural'
characters in file names in #line to be consistent with #include
handling. We support escape processing in the # 1 "..." version of
the command. See also support in cp/lex.c.
(handle_directive): Likewise.
(do_line): Likewise.
1998-12-07 Zack Weinberg <>
* cpplib.c (initialize_char_syntax): Use ISALPHA and ISALNUM
so it'll work on non-ASCII platforms. Always consider $ an
identifier character. Take no arguments.
(cpp_reader_init): Call initialize_char_syntax with no
(cpp_start_read): Don't call initialize_char_syntax again.
Clear is_idchar['$'] and is_idstart['$'] if not
* cpplib.h (struct cpp_reader): Replace void *data element by
cpp_options *opts. Rearrange elements to make gdb printout
less annoying (put buffer stack at end).
(CPP_OPTIONS): Get rid of now-unnecessary cast.
* cppmain.c: s/data/opts/ when initializing cpp_reader
* c-decl.c: Likewise.
* objc/objc-act.c: Likewise.
* fix-header.c: Likewise.
1998-12-07 Zack Weinberg <>
* cpplib.h (struct cpp_buffer): Replace dir and dlen members
with a struct file_name_list pointer.
(struct cpp_reader): Add pointer to chain of `actual
directory' include searchpath entries.
(struct file_name_list): Add *alloc pointer for the sake of
the actual-directory chain.
Move definition of HOST_WIDE_INT here.
(cpp_parse_escape): Change prototype to match changes in
* cppfiles.c (actual_directory): New function.
(finclude): Use it to initialize the buffer's actual_dir
(find_include_file): We don't need to fix up max_include_len
* cpplib.c (do_include): Don't allocate a file_name_list on
the fly for current directory "" includes, use the one that's
been preallocated in pfile->buffer->actual_dir. Hoist out
duplicate code from the search_start selection logic.
(cpp_reader_init): Initialize pfile->actual_dirs.
Remove definition of HOST_WIDE_INT. Change calls
to cpp_parse_escape to match changes in cppexp.c (note
hardcoded MASK, which is safe since this is the source
character set).
* cppexp.c: Bring over changes to cpp_parse_escape from cccp.c
to handle wide character constants in #if directives. The
function now returns a HOST_WIDE_INT, and takes a third
argument which is a binary mask for all legal values (0x00ff
for 8-bit `char', 0xffff for 16-bit `wchar_t', etc.) Define
cpp_parse_escape to match. [Fixes c-torture/execute/widechar-1.c]
Mon Dec 7 15:38:25 1998 Dave Brolley <>
* gcc.c (default_compilers): Fix typo in USE_CPPLIB spec for cc1.
Mon Dec 7 15:38:25 1998 Kaveh R. Ghazi <>
* c-aux-info.c (concat): Wrap function definition in !USE_CPPLIB.
* cppalloc.c: Move function `xcalloc' from cpplib.c to here.
* cpplib.c: Move function `xcalloc' from here to cppalloc.c.
Mon Dec 7 11:30:49 1998 Nick Clifton <>
* final.c (output_asm_name): Use tabs to separate comments from
assembly text.
Include instruction lengths (if defined) in output.
Mon Dec 7 10:53:38 1998 Michael Hayes <>
* loop.c (check_dbra_loop): Fix initial_value and initial_equiv_value
in the loop_info structure.
Mon Dec 7 11:04:40 1998 Catherine Moore <>
* (arm*-*-ecos-elf): New target.
* configure: Regenerated.
* config/arm/elf.h (ASM_WEAKEN_LABEL): Define.
* config/arm/ecos-elf.h: New file.
* config/arm/unknown-elf.h (TARGET_VERSION): Check
for redefinition.
Mon Dec 7 16:15:51 1998 J"orn Rennecke <>
* sh.c (output_far_jump): Emit braf only for TARGET_SH2.
Sun Dec 6 04:19:45 1998 Jeff Law (
* version.c: Bump for snapshot.
Sun Dec 6 05:16:16 1998 Michael Hayes <>
* loop.c (check_dbra_loop): New argument loop_info. Update fields
as needed.
Sun Dec 6 03:40:13 1998 Jeff Law (
* version.c: Bump for snapshot.
Sun Dec 6 07:49:29 1998 Alexandre Oliva <>
* gcc.texi (Bug Reporting): 40Kb is a soft limit, larger
compressed reports are ok and preferred over URLs.
Sun Dec 6 07:45:33 1998 Alexandre Oliva <>
* invoke.texi (Warning Options): Soften the tone of -pedantic.
Sun Dec 6 00:20:44 1998 H.J. Lu (
* print-rtl.c (print_rtx): Add prototype.
* unroll.c (iteration_info): Make it static.
Sun Dec 6 01:19:46 1998 Richard Henderson <>
* alias.c (memrefs_conflict_p): A second ANDed address
disables the aligned address optimization.
Sat Dec 5 18:48:25 1998 Richard Henderson <>
* alpha.c (alpha_emit_set_const_1): Fix parenthesis error
in -c << n case.
Sat Dec 5 15:14:52 1998 Jason Merrill <>
* i960.h (BOOL_TYPE_SIZE): Define.
Sun Dec 6 00:28:16 1998 Michael Hayes <>
* config/c4x/c4x.c (valid_parallel_load_store): Flog functionality
from old valid_parallel_operands_4.
(valid_parallel_operands_4): Check that operands for 4 operand
parallel insns are valid, excluding load/store insns.
* config/c4x/c4x.h (valid_parallel_load_store): Add prototype.
* config/c4x/ (*movqf_parallel, *movqi_parallel): Use
valid_parallel_load_store instead of valid_parallel_operands_4.
(*absqf2_movqf_clobber, *floatqiqf2_movqf_clobber,
*negqf2_movqf_clobber, *absqi2_movqi_clobber,
*fixqfqi2_movqi_clobber, *negqi2_movqi_clobber,
*notqi_movqi_clobber): Use valid_parallel_operands_4.
(*subqf3_movqf_clobber, *ashlqi3_movqi_clobber,
*ashrqi3_movqi_clobber, *lshrqi3_movqi_clobber,
*subqi3_movqi_clobber): Use valid_parallel_operands_5.
Sat Dec 5 23:52:01 1998 Michael Hayes <>
* config/c4x/c4x.c (iteration_info): Delete extern.
Fri Dec 4 20:15:57 1998 Bernd Schmidt <>
* tm.texi (SMALL_REGISTER_CLASSES): Make description match reality.
* final.c (cleanup_subreg_operands): Delete some unused code.
* recog.h (MAX_RECOG_ALTERNATIVES): New macro.
(struct insn_alternative): New structure definition.
(recog_op_alt): Declare variable.
(preprocess_constraints): Declare function.
* recog.c (recog_op_alt): New variable.
(extract_insn): Verify number of alternatives is in range.
(preprocess_constraints): New function.
* reg-stack.c: Include recog.h.
(constrain_asm_operands): Delete.
(get_asm_operand_lengths): Delete.
(get_asm_operand_n_inputs): New function.
(record_asm_reg_life): Delete OPERANDS, CONSTRAINTS, N_INPUTS and
N_OUTPUTS args. All callers changed.
Compute number of inputs and outputs here by calling
Instead of constrain_asm_operands, call extract_insn,
constrain_operands and preprocess_constraints. Use information
computed by these functions throughout.
(record_reg_life): Delete code that is unused due to changes in
(subst_asm_stack_regs): Delete OPERANDS, OPERAND_LOC, CONSTRAINTS,
N_INPUTS and N_OUTPUTS args. All callers changed.
Similar changes as in record_asm_reg_life.
(subst_stack_regs): Move n_operands declaration into the if statement
where it's used.
Delete code that is unused due to changes in subst_asm_stack_regs.
* stmt.c (expand_asm_operands): Verify number of alternatives is in
* (reg-stack.o): Depend on recog.h.
Fri Dec 4 02:23:24 1998 Jeffrey A Law (
* except.c (set_exception_version_code): Argument is an "int".
Fri Dec 4 01:29:28 1998 Jeffrey A Law (
* (hppa2*-*-*): Handle like hppa1.1-*-* for now.
* configure: Rebuilt.
Fri Dec 4 01:29:28 1998 Robert Lipe <>
* (mipsel-*-linux*): New target.
* mips/linux.h: New file, based on other Linux targets.
Thu Dec 3 11:19:50 1998 Mike Stump <>
* gthr-vxworks.h (__ehdtor): Fix memory leak. The delete hook
runs in the context of the deleter, not the deletee, so we must
use taskVarGet to find the correct memory to free.
(__gthread_key_create): Initialize the task
variable subsystem so that the task variable is still active when
the delete hook is run.
1998-12-03 Joseph S. Myers <>
* pdp11.h: Use optimize_size for space optimizations.
* pdp11.c: Likewise.
* Likewise.
* pdp11.h (TARGET_40_PLUS): Fix typo.
Thu Dec 3 11:48:32 1998 Jeffrey A Law (
* local-alloc.c (block_alloc): Slightly retune heuristic to widen
qty lifetimes.
Thu Dec 3 22:30:18 1998 Michael Hayes <>
* alias.c (addr_side_effect_eval): New function.
(memrefs_conflict_p): Use it.
* rtl.h (addr_side_effect_eval): Prototype it.
1998-12-02 Joseph S. Myers <>
* (extendsfdf2): Fix mode mismatch in SET.
Wed Dec 2 11:23:07 1998 Jim Wilson <>
* reload.c (find_reloads): When force const to memory, put result
in substed_operand not *recog_operand_loc.
1998-12-02 Ulrich Drepper <>
* c-lex.c: Fix indentation from last patch.
Remove trailing whitespace.
* real.c: Likewise.
Wed Dec 2 10:11:12 1998 Jeffrey A Law (
* flow.c (delete_block): Call set_last_insn after we have reset
NEXT_INSN (kept_tail).
Wed Dec 2 00:47:31 1998 Jeffrey A Law (
* (trap_if): Use "$0" for the value zero.
Tue Dec 1 20:49:49 1998 Ulrich Drepper <>
Stephen L Moshier <>
Richard Henderson <>
* c-common.c (declare_function_name): Declare predefined variable
* c-decl.c (flag_isoc9x): Set to 1 by default.
(c_decode_option): Handle -std= option. Remove -flang-isoc9x.
(grokdeclarator): Always emit warning about implicit int for ISO C 9x.
* Allow constructors in ISO C 9x.
Rewrite designator list handling.
Allow [*] parameters.
Don't warn about comma at end of enum definition for ISO C 9x.
* cccp.c (c9x): New variable.
(rest_extension): New variable.
(print_help): Document new -std= option.
(main): Recognize -std= option. Set c9x appropriately.
(create_definition): Recognize ISO C 9x vararg macros.
* gcc.c (default_compilers): Adjust specs for -std options.
(option_map): Add --std.
(display_help): Document -std.
* toplev.c (documented_lang_options): Add -std and remove
* c-lex.c (yylex): Recognize hex FP constants and call REAL_VALUE_ATOF
or REAL_VALUE_HTOF based on base of the constants.
* fold-const.c (real_hex_to_f): New function. Replacement function
for hex FP conversion if REAL_ARITHMETIC is not defined.
* real.c (asctoeg): Add handling of hex FP constants.
* real.h: Define REAL_VALUE_HTOF if necessary using ereal_atof or
Tue Dec 1 16:45:49 1998 Stan Cox <>
* (divmodsi4*, divmoddi4*, udivmodsi4*, udivmoddi4): Add
-mcheck-range-division/-mcheck-zero-division checking. Avoid as macro
expansion. Use hi/lo as destination register.
(div_trap): New.
(divsi3*, divdi3*, modsi3*, moddi3*, udivsi3*, udivdi3*, umodsi3*,
umoddi3*): Add -mcheck-range-division/-mcheck-zero-division checking.
Avoid as macro expansion. Use hi/lo as destination register.
* mips.h (MASK_CHECK_RANGE_DIV): New.
return address for leaf functions out of r31 to support
Tue Dec 1 15:03:30 1998 Herman A.J. ten Brugge <>
* jump.c (jump_optimize): Call regs_set_between_p with PREV_INSN(x),
NEXT_INSN(x) to check insn x.
Tue Dec 1 15:20:44 1998 Jeffrey A Law (
* flow.c (delete_block): Call set_last_insn if we end up deleting the
last insn in the rtl chain.
* reload1.c (reload): Do not set reload_completed or split insns
here. Instead...
* toplev.c (rest_of_compilation): Set reload_completed after
reload returns. Split insns after reload_cse has run.
Tue Dec 1 11:55:04 1998 Richard Henderson <>
* final.c (final_scan_insn): Abort if block_depth falls below 0.
Tue Dec 1 10:23:16 1998 Nick Clifton <>
* config/arm/t-arm-elf (LIBGCC2_CFLAGS): Define inhibit_libc.
Tue Dec 1 10:22:18 1998 Nick Clifton <>
* config/arm/unknown-elf.h (ASM_OUTPUT_DWARF2_ADDR_CONST): Remove
use of user-label_prefix.
Tue Dec 1 17:58:26 1998 J"orn Rennecke <>
* reload1.c (emit_reload_insns): Clear spill_reg_store
when doing a new non-inherited reload from the same pseudo.
* local-alloc.c (function_invariant_p): New function.
(update_equiv_regs): Use function_invariant_p instead of CONSTANT_P
to decide if an equivalence should be recorded.
* reload1.c (num_eliminable_invariants): New static variable.
(reload): Set it. Use function_invariant_p instead of CONSTANT_P
to decide if an equivalence should be recorded.
Unshare PLUS.
(calculate_needs_all_insns): Skip insns that only set an equivalence.
Take num_eliminable_invariants into account when deciding
if register elimination should be done.
(reload_as_needed): Take num_eliminable_invariants into account
when deciding if register elimination should be done.
(eliminate_regs): Handle non-constant reg_equiv_constant.
* rtl.h (function_invariant_p): Declare.
Mon Nov 30 02:00:08 1998 Jeff Law (
* version.c: Bump for snapshot.
Mon Nov 30 00:42:59 1998 Jeff Law (
* version.c: Bump for snapshot.
Sun Nov 29 22:59:40 1998 Jason Merrill <>
* except.c (add_new_handler): Complain about additional handlers
after one that catches everything.
Sat Nov 28 10:56:32 1998 Jeffrey A Law (
* (alpha*-*-netbsd): Fix typo.
* configure: Rebuilt.
Fri Nov 27 12:28:56 1998 Kaveh R. Ghazi <>
* system.h: Include libiberty.h.
* c-aux-info.c: Remove prototypes for concat/concat3. Change
function `concat' from fixed parameters to variable parameters,
as is done in libiberty. All callers of concat/concat3
changed to use the new `concat' with variable args.
* cccp.c: Remove things made redundant by libiberty.h and/or
conform to libiberty standards.
* cexp.y: Likewise.
* collect2.c: Likewise.
* config/1750a/1750a.h: Likewise.
* cppalloc.c: Likewise.
* cppexp.c: Likewise.
* cppfiles.c: Likewise.
* cpphash.c: Likewise.
* cpplib.c: Likewise.
* dyn-string.c: Likewise.
* fix-header.c: Likewise.
* gcc.c: Likewise.
* gcov.c: Likewise.
* genattr.c: Likewise.
* genattrtab.c: Likewise.
* gencheck.c: Likewise.
* gencodes.c: Likewise.
* genconfig.c: Likewise.
* genemit.c: Likewise.
* genextract.c: Likewise.
* genflags.c: Likewise.
* gengenrtl.c: Likewise.
* genopinit.c: Likewise.
* genoutput.c: Likewise.
* genpeep.c: Likewise.
* genrecog.c: Likewise.
* getpwd.c: Likewise.
* halfpic.c: Likewise.
* hash.c: Likewise.
* mips-tdump.c: Likewise. Wrap malloc/realloc/calloc prototypes
* mips-tfile.c: Remove things made redundant by libiberty.h and/or
conform to libiberty standards.
(fatal): Fix const-ification of variable `format' in
* prefix.c: Remove things made redundant by libiberty.h and/or
conform to libiberty standards.
* print-rtl.c: Rename variable `spaces' to `xspaces' to avoid
conflicting with function `spaces' from libiberty.
* profile.c: Remove things made redundant by libiberty.h and/or
conform to libiberty standards.
* protoize.c: Likewise.
* rtl.h: Likewise.
* scan.h: Likewise.
* tlink.c: Likewise.
* toplev.c: Likewise.
* toplev.h: Likewise.
* tree.h: Likewise.
Thu Nov 26 08:38:06 1998 Kaveh R. Ghazi <>
* cppfiles.c (simplify_pathname): Un-ANSI-fy function definition.
Thu Nov 26 23:45:37 1998 Michael Hayes <>
* README.C4X: Updated URLs.
* config/c4x/c4x.c (c4x_address_conflict): Fix typo.
(valid_parallel_operands_5): Remove unused variable.
Thu Nov 26 23:40:03 1998 Michael Hayes <>
* config/c4x/c4x.h (TARGET_DEFAULT): Fix typo.
1998-11-26 Manfred Hollstein <>
* (CONFIG_LANGUAGES): New macro taking all languages
which can be configured.
(LANGUAGES): Use $(CONFIG_LANGUAGES) instead of @all_languages@
(Makefile): Pass actual LANGUAGES through the environment when
(cstamp-h): Likewise.
(config.status): Likewise.
* (enable_languages): Add new configuration parameter
(${srcdir}/*/ Change handling to configure only
those directories, that the user might have enabled; default to
"all" existing languages.
* configure: Regenerate.
Thu Nov 26 00:19:19 1998 Richard Henderson <>
* rtlanal.c (regs_set_between_p): New function.
* rtl.h (regs_set_between_p): Prototype it.
* jump.c (jump_optimize): Use it instead of modified_between_p
in the Sep 2 change.
Wed Nov 25 23:32:02 1998 Ian Dall <>
Matthias Pfaller <>
* invoke.texi (Option Summary, NS32K Options): Add description
of NS32K specific options.
* (tstdf, cmpdf, movdf, truncdfsf2, fixdfqi2, fixdfhi2,
fixdfsi2, fixunsdfqi2, fixunsdfhi2, fixunsdfsi2, fix_truncdfqi2,
fix_truncdfhi2, fix_truncdfsi2, adddf3, subdf3, muldf3, divdf3,
negdf2, absdf2): Use l instead of f since the double class and
float class are no longer the same.
(cmpsi, truncsiqi2, truncsihi2, addsi3, subsi3, mulsi3, umulsidi3,
divsi3, modsi3, andsi3, iorsi3, xorsi3, negsi2, one_cmplsi2,
ashlsi3, ashlhi3, ashlqi3, rotlsi3, rotlhi3, rotlqi3, abssi2,...):
Use "g" instead of "rmn" since LEGITIMATE_PIC_OPERAND has been
(cmpsi, cmphi, cmpqi): Use general_operand instead of
non_immediate_operand. Removes erroneous assumption that can't
compare constants.
(movsf, movsi, movhi, movqi,...): New register numbering scheme.
(movsi, addsi3): Use NS32K_DISPLACEMENT_P instead of hard coded
(movstrsi, movstrsi1, movstrsi2): Completely new block move
(...): Patterns to exploit multiply-add instructions.
(udivmodsi4, udivmodsi_internal4, udivmodhi4,
udivmoddihi4_internal, udivmodqi4, udivmoddiqi4_internal): New
patterns to exploit extended divide insns.
(udivsi3, udivhi3, udivqi3): Remove since superseded by udivmodsi
etc patterns.
* ns32k.h (FUNCTION_VALUE, LIBCALL_VALUE): Use f0 for complex
float return values as well as simple scalar floats.
Support new flag to denote 32381 fpu.
(OVERRIDE_OPTIONS): 32381 is a strict superset of 32081.
(CONDITIONAL_REGISTER_USAGE): Disable extra 32381 registers if not
compiling for 32381.
REG_OK_FOR_BASE_P, MEM_REG): New register scheme to include 32381
fpu registers and special register classes for new 32381
instructions dotf and polyf.
(MODES_TIEABLE_P): Allow all integer modes, notably DI and SI, to
be tieable.
INCOMING_FRAME_SP_OFFSET): New macros in case DWARF support is
(SMALL_REGISTER_CLASSES): Make dependent on -mmult-add option.
(MOVE_RATIO): Set to zero because of smart movstrsi implementation.
(REGISTER_MOVE_COST): Move code to register_move_cost function for
ease of coding and debugging.
(CLASS_LIKELY_SPILLED_P): Under new register scheme class
LONG_FLOAT_REGO is likely spilled but not caught by default
instead of hard coded numbers in range check.
(ASM_OUTPUT_LABELREF_AS_INT): Delete since unused.
(...): Add prototypes for functions in ns32k.c but disable because
of problems when ns32k.h is included in machine independent files.
* ns32k.c: Include "system.h", "tree.h", "expr.h", "flags.h".
(ns32k_reg_class_contents, regcass_map, ns32k_out_reg_names,
hard_regno_mode_ok, secondary_reload_class,
print_operand, print_operand_address): New register scheme to
include 32381 fpu registers and special register classes for new
32381 instructions dotf and polyf.
(gen_indexed_expr): Make static to keep namespace clean.
(check_reg): Remove since never called.
(move_tail, expand_block_move): Helper functions for "movstrsi"
block move insn.
(register_move_cost): Helper function for REGISTER_MOVE_COST macro.
Increase cost of moves which go via memory.
* netbsd.h (TARGET_DEFAULT): Set (new) 32381 fpu flag.
(CPP_PREDEFINES): No longer predefine "unix".
* (movsi, movsi, adddi3, subdi3, subsi3, subhi3, subqi3,...):
Remove erroneous %$. print_operand() can work out from the rtx is
an immediate prefix is required.
SET_DEFAULT_TYPE_ATTRIBUTES): Support for -mrtd calling
pic operands.
* ns32k.c (symbolic_reference_mentioned_p, print_operand):
Correct handling of pic operands.
(ns32k_valid_decl_attribute_p, ns32k_valid_type_attribute_p,
ns32k_comp_type_attributes, ns32k_return_pops_args): Support for
-mrtd calling convention.
Wed Nov 25 23:42:20 1998 Tom Tromey <>
* gcc.c (option_map): Recognize --output-class-directory.
Thu Nov 26 18:26:21 1998 Michael Hayes <>
* loop.h (precondition_loop_p): Added new mode argument.
* unroll.c (precondition_loop_p): Likewise.
(approx_final_value): Function deleted and subsumed
into loop_iterations.
(loop_find_equiv_value): New function.
(loop_iterations): Use loop_find_equiv_value to find increments
too large to be immediate constants. Also use it to find terms
common to initial and final iteration values that can be removed.
Thu Nov 26 18:05:04 1998 Michael Hayes <>
* loop.h (struct loop_info): Define new structure.
(precondition_loop_p): Added prototype.
(unroll_loop): Added new argument loop_info to prototype.
(final_biv_value, final_giv_value): Added new argument n_iterations
to prototype.
* loop.c (strength_reduce): Declare new structure loop_iteration_info
and new pointer loop_info.
(loop_n_iterations): Replace global variable by element in
loop_info structure.
(check_final_value): New argument n_iterations.
(insert_bct): New argument loop_info.
(loop_unroll_factor): Replace global array by element in
loop_info structure.
(loop_optimize): Remove code to allocate and initialize
* unroll.c (precondition_loop_p): No longer static since
used by branch on count optimization.
(precondition_loop_p, unroll_loop): New argument loop_info.
(final_biv_value, final_giv_value, find_splittable_regs): New
argument n_iterations.
(loop_iteration_var, loop_initial_value, loop_increment,
loop_final_value, loop_comparison_code, loop_unroll_factor):
Replaced global variables by loop_info structure.
(loop_unroll_factor): Replace global array by element in
loop_info structure.
Thu Nov 26 17:49:29 1998 Michael Hayes <>
* loop.c (check_dbra_loop): Update JUMP_LABEL field of jump insn
when loop reversed.
* unroll.c (precondition_loop_p): Return loop_initial_value
for initial_value instead of loop_iteration_var.
Thu Nov 26 17:15:38 1998 Michael Hayes <>
* config/c4x/ Fix minor formatting problems. Update docs.
(*b, *b_rev, *b_noov, *b_noov_rev, *db,
decrement_and_branch_until_zero, rptb_end): Use c4x_output_cbranch
to output the instruction sequences.
(rpts): Delete.
(rptb_top): Provide alternatives to use any register or memory
for loop counter.
(rptb_end): Emit use of operands rather than assigning them
explicitly to the RS and RE registers.
Thu Nov 26 16:37:59 1998 Michael Hayes <>
* config/c4x/c4x.c (c4x_modified_between_p, c4x_mem_set_p,
c4x_mem_set_p, c4x_mem_modified_between_p, c4x_insn_moveable_p,
c4x_parallel_pack, c4x_parallel_find, c4x_update_info_reg,
c4x_update_info_regs, c4x_copy_insn_after, c4x_copy_insns_after,
c4x_merge_notes, c4x_parallel_process,
c4x_combine_parallel_independent, c4x_combine_parallel_dependent,
c4x_combine_parallel): Delete.
Thu Nov 26 15:16:05 1998 Michael Hayes <>
* config/c4x/c4x.c (c4x_override_options): For compatibility
with old target options clear flag_branch_on_count_reg if
-mno-rptb specified and set flag_argument_alias is -mno-aliases
(c4x_output_cbranch): Handle a sequence of insns rather than a
single insn.
(c4x_rptb_insert): Do not emit a RPTB insn if the RC register
has not been allocated as the loop counter.
(c4x_address_conflict): Do not allow two volatile memory references.
(valid_parallel_operands_4, valid_parallel_operands_5,
valid_parallel_operands_6): Reject pattern if the register destination
of the first set is used as part of an address in the second set.
Thu Nov 26 14:56:32 1998 Michael Hayes <>
* config/c4x/c4x.h (TARGET_DEFAULT): Add PARALEL_MPY_FLAG.
is no longer enabled if PARALLEL_MPY_FLAG set.
(HARD_REGNO_CALL_CLOBBERED): Add parentheses to remove ambiguity.
(REG_CLASS_CONTENTS): Add braces around initializers.
(ASM_OUTPUT_BYTE_FLOAT): Use %lf format specifier with
(ASM_OUTPUT_SHORT_FLOAT): Use %lf format specifier with
(ar0_reg_operand): Add prototype.
(ar0_mem_operand): Likewise.
(ar1_reg_operand): Likewise.
(ar1_mem_operand): Likewise.
(ar2_reg_operand): Likewise.
(ar2_mem_operand): Likewise.
(ar3_reg_operand): Likewise.
(ar3_mem_operand): Likewise.
(ar4_reg_operand): Likewise.
(ar4_mem_operand): Likewise.
(ar5_reg_operand): Likewise.
(ar5_mem_operand): Likewise.
(ar6_reg_operand): Likewise.
(ar6_mem_operand): Likewise.
(ar7_reg_operand): Likewise.
(ar7_mem_operand): Likewise.
(ir0_reg_operand): Likewise.
(ir0_mem_operand): Likewise.
(ir1_reg_operand): Likewise.
(ir1_mem_operand): Likewise.
(group1_reg_operand): Likewise.
(group1_mem_operand): Likewise.
(ir1_reg_operand): Likewise.
(arx_reg_operand): Likewise.
(not_rc_reg): Likewise.
(not_modify_reg): Likewise.
(c4x_group1_reg_operand): Remove prototype.
(c4x_group1_mem_operand): Likewise.
(c4x_arx_reg_operand): Likewise.
Wed Nov 25 19:02:55 1998 (Stephen L Moshier) <>
* emit-rtl.c (gen_lowpart_common): Remove earlier change.
* real.c (make_nan): Make SIGN arg actually specify the sign bit.
Thu Nov 26 14:12:05 1998 Michael Hayes <>
* config/c4x/ (addqi3): Emit addqi3_noclobber pattern
during reload.
Wed Nov 25 22:05:28 1998 J"orn Rennecke <>
* config/sh/lib1funcs.asm (___udivsi3_i4): Don't switch to sz == 1
unless FMOVD_WORKS is defined.
Wed Nov 25 20:11:04 1998 J"orn Rennecke <>
* regclass.c (init_reg_sets): Move code that calculates tables
dependent on reg_class_contents from here...
(init_reg_sets_1): To here.
Wed Nov 25 14:54:46 1998 Zack Weinberg <>
* cpplib.h: Delete struct import_file. Add ihash element to
struct cpp_buffer. Delete dont_repeat_files and
import_hash_table elements from cpp_reader; change
all_include_files to a hash table. Delete all foobar_include
/ last_foobar_include elements from struct cpp_options; put
back four such: quote_include, bracket_include,
system_include, after_include. Redo struct file_name_list
completely. Add new structure type include_hash. Add
prototypes for merge_include_chains and include_hash. Change
prototypes for finclude, find_include_file, and
append_include_chain to match changes below.
* cppfiles.c (simplify_pathname, include_hash,
remap_filename, merge_include_chains): New functions.
(add_import, lookup_import, open_include_file): Removed.
(INO_T_EQ): Define this (copied from cccp.c).
(hack_vms_include_specification): Remove all calls and #if 0
out the definition. It was being called incorrectly and at
the wrong times. Until a VMSie can look at this, it's better
to not pretend to support it.
(append_include_chain): Change calling convention; now takes
only one directory at a time, and sets up the data structure
(redundant_include_p): Rewritten - this is now used for all
include redundancy, whether by #ifndef, #import, or #pragma
once. Looks up things in the include hash table.
(file_cleanup): Decrement pfile->system_include_depth here if
it's >0.
(find_include_file): Calling convention changed; now passes
around a struct include_hash instead of 3 separate parameters.
Guts ripped out and replaced with new include_hash mechanism.
(finclude): Calling convention changed as for
find_include_file. Error exits pulled out-of-line. Reformat.
(safe_read): Return a long, not an int.
(deps_output): Don't recurse.
* cpplib.c (is_system_include): Deleted.
(path_include): Fix up call to append_include_chain.
(do_include): Fix up calls to find_include_file and finclude.
Clean up dependency output a bit. Shorten obnoxiously lengthy
#import warning message. Don't decrement
pfile->system_include_depth here.
(do_pragma): Understand the include_hash structure. Reformat.
(do_endif): Correct handling of control macros. Understand
the include_hash.
(cpp_start_read): Fix up calls to finclude. Call
(cpp_handle_option): Fix up calls to append_include_chain.
Understand the four partial include chains.
(cpp_finish): Add debugging code (#if 0-ed out) for the
(cpp_cleanup): Free the include_hash, not the import hash and
the all_include and dont_repeat lists which no longer exist.
Wed Nov 25 11:26:19 1998 Jeffrey A Law (
* toplev.c (no_new_pseudos): Define.
(rest_of_compilation): Set no_new_pseudos as needed.
* emit-rtl.c (gen_reg_rtx): Abort if we try to create a new pseudo
if no_new_pseudos is set.
* rtl.h (no_new_pseudos): Declare it.
* reload1.c (reload): Update comments.
* md.texi: Corresponding changes.
Wed Nov 25 11:26:17 1998 Bernd Schmidt <>
* reload1.c (reg_used_in_insn): Renamed from reg_used_by_pseudo.
(choose_reload_regs): Rename it here as well. When computing it,
also merge in used hardregs.
1998-11-25 Zack Weinberg <>
* gcc.c: Split out Objective-C specs to...
* objc/lang-specs.h: here. (New file.) Make the specs cpplib
* c-lex.c (init_parse): Always initialize the filename global.
* objc/objc-act.c (lang_init): Always call check_newline at
beginning of file.
Wed Nov 25 00:48:29 1998 Graham <>
* reload1.c (reload): Remove unused variable.
(reload_reg_free_for_value_p): Add missing parameter definition.
* jump.c (jump_optimize): Remove unused variable.
Wed Nov 25 00:07:11 1998 Jeffrey A Law (
* (graph.o): Depend on $(RTL_H), not rtl.h.
* cse.c (fold_rtx): Make autoincrement addressing mode tests be
runtime selectable.
* expr.c (move_by_pieces): Similarly.
(move_by_pieces_1, clear_by_pieces, clear_by_pieces_1): Similarly.
* flow.c (find_auto_inc): Similarly.
(try_pre_increment): Similarly.
* loop.c (strength_reduce): Similarly.
* regclass.c (auto_inc_dec_reg_p): Similarly.
* regmove.c (try_auto_increment): Similarly.
(fixup_match_1): Similarly.
* rtl.h (HAVE_PRE_INCREMENT): Define if not already defined.
* Corresponding changes to all target header files.
* tm.texi: Update docs for autoinc addressing modes.
Tue Nov 24 20:24:59 1998 Jim Wilson <>
* (m68020-*-elf*, m68k-*-elf*): New targets.
* configure: Rebuild.
* config/elfos.h: New file.
* config/m68k/m68020-elf.h, config/m68k/m68kelf.h,
config/m68k/t-m68kelf: New file.
Tue Nov 24 13:40:06 1998 Jeffrey A Law (
* (HOST_AR): Define.
(libcpp.a): Use the host tools explicitly.
(STAGESTUFF): Add libcpp.a.
Tue Nov 24 09:33:49 1998 Nick Clifton <>
* config/m32r/ (movstrsi_internal): Describe changes made
to source and destination registers.
Mon Nov 23 20:28:02 1998 Mike Stump <>
* libgcc2.c (top_elt): Remove top_elt, it isn't thread safe.
The strategy we now use is to pre allocate the top_elt along
with the EH context so that each thread has its own top_elt.
This is necessary as the dynamic cleanup chain is used on the
top element of the stack and each thread MUST have its own.
(eh_context_static): Likewise.
(new_eh_context): Likewise.
(__sjthrow): Likewise.
Mon Nov 23 20:25:03 1998 Jason Merrill <>
* i386/linux.h (ASM_OUTPUT_MAX_SKIP_ALIGN): Wrap in do...while.
* (prologue_get_pc): Remove unused variable.
Mon Nov 23 17:05:40 1998 Geoffrey Noer <>
* i386/xm-cygwin.h: Rename cygwin_ path funcs back to cygwin32_.
Mon Nov 23 16:40:00 1998 Ulrich Drepper <>
* (OBJS): Add graph.o.
(graph.o): New dependency list.
* flags.h: Declare dump_for_graph and define graph_dump_types type.
* print-rtl.c (dump_for_graph): Define new variable.
(print_rtx): Rewrite to allow use in graph dumping functions.
* toplev.c: Declare print_rtl_graph_with_bb, clean_graph_dump_file,
Define graph_dump_format.
(compile_file): If graph dumping is enabled also clear these files.
Finish graph dump files.
(rest_of_compilation): Also dump graph information if enabled.
(main): Recognize -dv to enabled VCG based graph dumping.
* graph.c: New file. Graph dumping functions.
Mon Nov 23 16:39:04 1998 Richard Henderson <>
* Look for <sys/stat.h>.
* system.h: Include it before substitute S_ISREG definitions.
Mon Nov 23 17:40:37 1998 Gavin Romig-Koch <>
* config/mips/abi.h: Use ABI_O64, duplicating ABI_32 usage.
* config/mips/iris6.h: Same.
* config/mips/ Same.
* config/mips/mips.c: Same; also add "-mabi=o64" option.
* config/mips/mips.h: Same; also define ABI_O64.
Mon Nov 23 17:02:27 1998 Kaveh R. Ghazi <>
* Use AC_PREREQ(2.12.1).
Mon Nov 23 10:16:38 1998 Melissa O'Neill <>
* cccp.c (S_ISREG, S_ISDIR): Delete defines.
* cpplib.c, gcc.c: Likewise.
* system.h (S_ISREG, S_ISDIR): Define if not already defined.
Mon Nov 23 09:53:44 1998 Richard Henderson <>
* local-alloc.c (local_alloc): Use malloc not alloca for
reg_qty, reg_offset, ref_next_in_qty.
Mon Nov 23 16:46:46 1998 J"orn Rennecke <>
* caller-save.c (insert_one_insn): Initialize the live_before and
live_after register sets.
Add SH4 support:
* config/sh/lib1funcs.asm (___movstr_i4_even, ___movstr_i4_odd): Define.
(___movstrSI12_i4, ___sdivsi3_i4, ___udivsi3_i4): Define.
* sh.c (reg_class_from_letter, regno_reg_class): Add DF_REGS.
(fp_reg_names, assembler_dialect): New variables.
(print_operand_address): Handle SUBREGs.
(print_operand): Added 'o' case.
Don't use adj_offsettable_operand on PRE_DEC / POST_INC.
Name of FP registers depends on mode.
(expand_block_move): Emit different code for SH4 hardware.
(prepare_scc_operands): Use emit_sf_insn / emit_df_insn as appropriate.
(from_compare): Likewise.
(add_constant): New argument last_value. Changed all callers.
(find_barrier): Don't try HImode load for FPUL_REG.
(machine_dependent_reorg): Likewise.
(sfunc_uses_reg): A CLOBBER cannot be the address register use.
(gen_far_branch): Emit a barrier after the new jump.
(barrier_align): Don't trust instruction lengths before
fixing up pcloads.
(machine_dependent_reorg): Add support for FIRST_XD_REG .. LAST_XD_REG.
Use auto-inc addressing for fp registers if doubles need to
be loaded in two steps.
Set sh_flag_remove_dead_before_cse.
(push): Support for TARGET_FMOVD. Use gen_push_fpul for fpul.
(pop): Support for TARGET_FMOVD. Use gen_pop_fpul for fpul.
(calc_live_regs): Support for TARGET_FMOVD. Don't save FPSCR.
Support for FIRST_XD_REG .. LAST_XD_REG.
(sh_expand_prologue): Support for FIRST_XD_REG .. LAST_XD_REG.
(sh_expand_epilogue): Likewise.
(sh_builtin_saveregs): Use DFmode moves for fp regs on SH4.
(initial_elimination_offset): Take TARGET_ALIGN_DOUBLE into account.
(arith_reg_operand): FPUL_REG is OK for SH4.
(fp_arith_reg_operand, fp_extended_operand): New functions.
(tertiary_reload_operand, fpscr_operand): Likewise.
(commutative_float_operator, noncommutative_float_operator): Likewise.
(binary_float_operator, get_fpscr_rtx, emit_sf_insn): Likewise.
(emit_df_insn, expand_sf_unop, expand_sf_binop): Likewise.
(expand_df_unop, expand_df_binop, expand_fp_branch): Likewise.
(emit_fpscr_use, mark_use, remove_dead_before_cse): Likewise.
* sh.h (CPP_SPEC): Add support for -m4, m4-single, m4-single-only.
(target_flag): Add -m4, m4-single, m4-single-only, -mfmovd.
(OPTIMIZATION_OPTIONS): If optimizing, set flag_omit_frame_pointer
to -1 and sh_flag_remove_dead_before_cse to 1.
(ASSEMBLER_DIALECT): Define to assembler_dialect.
(assembler_dialect, fp_reg_names): Declare.
Hide names of registers that are not accessible.
(CACHE_LOG): Take TARGET_CACHE32 into account.
(LOOP_ALIGN): Take TARGET_HARWARD into account.
(FIXED_REGISTERS, CALL_USED_REGISTERS): Include values for registers.
(HARD_REGNO_NREGS): Special treatment of FIRST_XD_REG .. LAST_XD_REG.
(enum reg_class): Add DF_REGS and FPSCR_REGS.
(NPARM_REGS): Eight floating point parameter registers on SH4.
(BASE_RETURN_VALUE_REG): SH4 also passes double values
in floating point registers.
(GET_SH_ARG_CLASS): Likewise.
Complex float types are also returned in float registers.
(BASE_ARG_REG): Complex float types are also passes in float registers.
(FUNCTION_VALUE): Change mode like PROMOTE_MODE does.
(LIBCALL_VALUE): Remove trailing semicolon.
(ROUND_REG): Round when double precision value is passed in floating
point register(s).
(FUNCTION_ARG_ADVANCE): No change wanted for SH4 when things are
passed on the stack.
(FUNCTION_ARG): Little endian adjustment for SH4 SFmode.
(INITIALIZE_TRAMPOLINE): Emit ic_invalidate_line for TARGET_HARWARD.
(MODE_DISP_OK_8): Not for SH4 DFmode.
(GO_IF_LEGITIMATE_ADDRESS): No base reg + index reg for SH4 DFmode.
Allow indexed addressing for PSImode after reload.
Don't change SH4 DFmode nor PSImode RELOAD_FOR_INPUT_ADDRESS.
(RTX_COSTS): Add PLUS case.
Increase cost of ASHIFT, ASHIFTRT, LSHIFTRT case.
(REGISTER_NAMES): Use fp_reg_names.
(enum processor_type): Add PROCESSOR_SH4.
(sh_flag_remove_dead_before_cse): Declare.
(rtx_equal_function_value_matters, fpscr_rtx, get_fpscr_rtx): Declare.
(PREDICATE_CODES): Add binary_float_operator,
commutative_float_operator, fp_arith_reg_operand, fp_extended_operand,
fpscr_operand, noncommutative_float_operator.
(ADJUST_COST): Use different scale for TARGET_SUPERSCALAR.
* (attribute cpu): Add value sh4.
(attrbutes fmovd, issues): Define.
(attribute type): Add values dfp_arith, dfp_cmp, dfp_conv, dfdiv.
(function units memory, int, mpy, fp): Make dependent on issue rate.
(function units issue, single_issue, load_si, load): Define.
(function units load_store, fdiv, gp_fpul): Define.
(attribute hit_stack): Provide proper default.
(use_sfunc_addr+1, udivsi3): Predicated on ! TARGET_SH4.
(udivsi3_i4, udivsi3_i4_single, divsi3_i4, divsi3_i4_single): New insns.
(udivsi3, divsi3): Emit special patterns for SH4 hardware,
(mulsi3_call): Now uses match_operand for function address.
(mulsi3): Also emit code for SH1 case. Wrap result in REG_LIBCALL /
(push, pop, push_e, pop_e): Now define_expands.
(push_fpul, push_4, pop_fpul, pop_4, ic_invalidate_line): New expanders.
(movsi_ie): Added y/i alternative.
(ic_invalidate_line_i, movdf_i4): New insns.
(movdf_i4+[123], reload_outdf+[12345], movsi_y+[12]): New splitters.
(reload_indf, reload_outdf, reload_outsf, reload_insi): New expanders.
(movdf): Add special code for SH4.
(movsf_ie, movsf_ie+1, reload_insf, calli): Make use of fpscr visible.
(call_valuei, calli, call_value): Likewise.
(movsf): Emit no-op move.
(mov_nop, movsi_y): New insns.
(blt, sge): Generalize to handle DFmode.
(return predicate): Call emit_fpscr_use and remove_dead_before_cse.
(block_move_real, block_lump_real): Predicate on ! TARGET_HARD_SH4.
(block_move_real_i4, block_lump_real_i4, fpu_switch): New insns.
(fpu_switch0, fpu_switch1, movpsi): New expanders.
(fpu_switch+[12], fix_truncsfsi2_i4_2+1): New splitters.
(toggle_sz): New insn.
(addsf3, subsf3, mulsf3, divsf3): Now define_expands.
(addsf3_i, subsf3_i, mulsf3_i4, mulsf3_ie, divsf3_i): New insns.
(macsf3): Make use of fpscr visible. Disable for SH4.
(floatsisf2): Make use of fpscr visible.
(floatsisf2_i4): New insn.
(floatsisf2_ie, fixsfsi, cmpgtsf_t, cmpeqsf_t): Disable for SH4.
(ieee_ccmpeqsf_t): Likewise.
(fix_truncsfsi2): Emit different code for SH4.
(fix_truncsfsi2_i4, fix_truncsfsi2_i4_2, cmpgtsf_t_i4): New insns.
(cmpeqsf_t_i4, ieee_ccmpeqsf_t_4): New insns.
(negsf2, sqrtsf2, abssf2): Now expanders.
(adddf3, subdf3i, muldf2, divdf3, floatsidf2): New expanders.
(negsf2_i, sqrtsf2_i, abssf2_i, adddf3_i, subdf3_i): New insns.
(muldf3_i, divdf3_i, floatsidf2_i, fix_truncdfsi2_i): New insns.
(fix_truncdfsi2, cmpdf, negdf2, sqrtdf2, absdf2): New expanders.
(fix_truncdfsi2_i4, cmpgtdf_t, cmpeqdf_t, ieee_ccmpeqdf_t): New insns.
(fix_truncdfsi2_i4_2+1): New splitters.
(negdf2_i, sqrtdf2_i, absdf2_i, extendsfdf2_i4): New insns.
(extendsfdf2, truncdfsf2): New expanders.
(truncdfsf2_i4): New insn.
* t-sh (LIB1ASMFUNCS): Add _movstr_i4, _sdivsi3_i4, _udivsi3_i4.
(MULTILIB_OPTIONS): Add m4-single-only/m4-single/m4.
* float-sh.h: When testing for __SH3E__, also test for
* va-sh.h (__va_freg): Define to float.
(__va_greg, __fa_freg, __gnuc_va_list, va_start):
Define for __SH4_SINGLE_ONLY__ like for __SH3E__ .
(__PASS_AS_FLOAT, __TARGET_SH4_P): Likewise.
(__PASS_AS_FLOAT): Use different definition for __SH4__ and
(TARGET_SH4_P): Define.
(va_arg): Use it.
* (movdf_k, movsf_i): Tweak the condition so that
init_expr_once is satisfied about the existence of load / store insns.
* (movsi_i, movsi_ie, movsi_i_lowpart, movsf_i, movsf_ie):
Change m constraint in source operand to mr / mf.
* va-sh.h (__va_arg_sh1): Use __asm instead of asm.
* (__VA_REEF): Define.
(__va_arg_sh1): Use it.
* va-sh.h (va_start, va_arg, va_copy): Add parentheses.
Sun Nov 22 21:34:02 1998 Jeffrey A Law (
* i386/dgux.c (struct option): Add new "description field".
* m88k/m88k.c (struct option): Likewise.
Sun Nov 22 16:07:57 1998 Jeff Law (
* version.c: Bump for snapshot.
Sun Nov 22 13:40:02 1998 Bernd Schmidt <>
* regmove.c (regmove_profitable_p): Use return value of find_matches
Sun Nov 22 02:47:37 1998 Jeff Law (
* version.c: Bump for snapshot.
Sat Nov 21 22:12:09 1998 Jeffrey A Law (
* reload1.c (eliminate_regs): Do not lose if eliminate_regs is called
without reload having been called earlier.
* v850.c (ep_memory_operand): Offsets < 0 are not valid for EP
addressing modes.
(v850_reorg): Similarly.
* loop.c (check_dbra_loop): Avoid using gen_add2_insn.
Sat Nov 21 02:18:38 1998 J"orn Rennecke <>
* loop.c (move_movables): Start of libcall might be new loop start.
Fri Nov 20 12:14:16 1998 Kaveh R. Ghazi <>
* hash.c (hash_table_init_n): Wrap prototype arguments in PARAMS().
Fri Nov 20 08:34:00 1998 Bernd Schmidt <>
* function.c (nonlocal_goto_handler_slots): Renamed from
nonlocal_goto_handler_slot; now an EXPR_LIST chain.
(push_function_context_to): Adjust for this change.
(pop_function_context_from): Likewise.
(init_function_start): Likewise.
(expand_function_end): Likewise.
* function.h (struct function): Likewise.
* calls.c (expand_call): Likewise.
* explow.c (allocate_dynamic_stack_space): Likewise.
* expr.h (nonlocal_goto_handler_slots): Rename its declaration.
* stmt.c (declare_nonlocal_label): Make a new handler slot for each
(expand_goto): When doing a nonlocal goto, find corresponding handler
slot for it. Don't put the label address in the static chain register.
(expand_end_bindings): Break out nonlocal goto handling code into
three new functions.
(expand_nl_handler_label, expand_nl_goto_receiver,
expand_nl_goto_receivers): New static functions, broken out of
expand_end_bindings and adapted to create one handler per nonlocal
* function.c (delete_handlers): Delete insn if it references any of
the nonlocal goto handler slots.
* (nonlocal_goto): Comment out code that modifies
* (nonlocal_goto): Likewise.
(goto_handler_and_restore_v9): Comment out.
(goto_handler_and_restore_v9_sp64): Comment out.
Thu Nov 19 23:44:38 1998 Bernd Schmidt <>
* expr.c (STACK_BYTES): Delete unused macro.
* calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
(expand_call): Likewise.
(emit_library_call): Likewise.
(emit_library_call_value): Likewise.
* function.c: Provide default for PREFERRED_STACK_BOUNDARY.
* explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
(allocate_dynamic_stack_space): Likewise.
* tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
(STACK_BOUNDARY): Update description to reflect the new situation.
Thu Nov 19 22:20:51 1998 Jeffrey A Law (
* reorg.c (relax_delay_slots): When optimizing for code size, if a
return with a filled delay slot is followed by a return with an
unfilled delay slot, delete the first return and reemit the insn
that was previously in its delay slot.
* i860.c (single_insn_src_p): Add missing parens.
* ginclude/math-3300.h: Likewise.
Thu Nov 19 20:55:59 1998 H.J. Lu (
* regclass.c (init_reg_sets_1): Add prototype.
(init_reg_modes): Likewise.
1998-11-19 Zack Weinberg <>
* c-common.c: Change warning messages to say `comparison is
always true' or `comparison is always false' instead of the
confusing `is always 0', `is always 1'.
Thu Nov 19 19:05:49 1998 Per Bothner <>
* print-tree.c (print_node): After printing BLOCK or BIND_EXPR,
break instead of return (which loses closing '>').
Thu Nov 19 19:34:13 1998 Jeffrey A Law (
* i386.h (LEGITIMATE_CONSTANT_P): Reject CONST_DOUBLEs that are not
standard 387 constants.
* (jump): Explicitly set "memory" attribute.
(indirect_jump, prologue_set_stack_ptr): Likewise.
(prologue_get_pc_and_set_got, pop): Likewise.
(allocate_stack_worder, blockage, return_internal): Likewise.
(return_pop_internal, nop): Likewise.
(epilogue_set_stack_ptr, leave): Likewise.
Thu Nov 19 15:42:54 1998 Nick Clifton <>
* config/arm/coff.h: Set USER_LABEL_PREFIX to "_".
Thu Nov 19 23:20:59 1998 J"orn Rennecke <>
* reload1.c (reload_reg_free_for_value_p):
Early auto_inc reloads don't conflict with outputs.
Thu Nov 19 12:58:55 1998 Kaveh R. Ghazi <>
* Don't do AC_CHECK_HEADERS(wait.h sys/wait.h).
Instead call AC_HEADER_SYS_WAIT.
* collect2.c: Don't provide defaults for sys/wait.h macros.
* gcc.c: Likewise.
* protoize.c: Likewise. Also, don't include sys/wait.h.
* system.h: Include sys/wait.h and provide macro defaults.
1998-11-19 Andreas Schwab <>
* (mandir): Set to @mandir@.
(man1dir): New variable to hold the former value of $(mandir).
Replace all uses of $(mandir) by $(man1dir).
Wed Nov 18 16:31:28 1998 Jim Wilson <>
* reload.c (find_reloads_address_part): If have a CONST_INT, create
a new one before passing it to force_const_mem.
* reload.c (find_reloads_toplev): Pass &x instead of NULL_PTR in
find_reloads_address call.
Wed Nov 18 22:13:00 1998 J"orn Rennecke <>
* expr.c (store_expr): Don't generate load-store pair
if TEMP is identical (according to ==) with TARGET.
Tue Nov 17 22:25:16 1998 J"orn Rennecke <>
* reload1.c (reload_reg_free_for_value_p): When considered reload
has an output, matching inputs are not sufficient to avoid conflict.
Tue Nov 17 11:51:16 1998 Mark Mitchell <>
* hash.h (hash_table_key): New type.
(hash_entry): Change `string' field to generic `key'.
(hash_table): Add `comp' and `hash' functions.
(hash_table_init): Take them as input.
(hash_table_init_n): Likewise.
(hash_lookup): Modify for generic keys.
(hash_newfunc): Likewise.
(hash_traverse): Likewise.
(string_hash): New function.
(string_compare): Likewise.
(string_copy): Likewise.
* hash.c (hash_table_init_n): Modify for generic keys.
(hash_table_init): Likewise.
(hash_lookup): Likewise.
(hash_newfunc): Likewise.
(hash_traverse): Likewise.
(string_hash): Split out from hash_lookup.
(string_compare): New function.
(string_copy): Split out from hash_lookup.
* tlink.c (symbol_hash_newfunc): Modify for new interfaces to hash
(symbol_hash_lookup): Likewise.
(file_hash_newfunc): Likewise.
(file_hash_lookup): Likewise.
(demangled_hash_newfunc): Likewise.
(demangled_hash_lookup): Likewise.
(tlink_int): Likewise.
(read_repo_file): Likewise.
(recompile_files): Likewise.
(demangle_new_symbols): Likewise.
(scan_linker_output): Likewise.
Tue Nov 17 17:13:53 1998 J"orn Rennecke <>
* flow.c (insn_dead_p): New argument NOTES. Changed all callers.
Mon Nov 16 17:56:07 1998 David Edelsohn <>
* rs6000.c (output_mi_thunk): Improve test for local branch.
Mon Nov 16 17:56:07 1998 Franz Sirl <>
* rs6000.c (output_mi_thunk): Correct test for aggregate values.
Mon Nov 16 21:02:52 1998 J"orn Rennecke <>
* reload1.c (reload_reg_free_before_p): Delete.
Changed all callers to use reload_reg_free_for_value_p instead.
(reload_reg_free_for_value_p): Handle more reload types.
A RELOAD_FOR_INPUT doesn't conflict with its
Add special case for OUT == const0_rtx.
Added ignore_address_reloads argument. Changed all callers.
Mon Nov 16 02:22:29 1998 Jason Merrill <>
* toplev.c (compile_file): Don't pedwarn about undefined static
functions just because we passed -Wunused.
Mon Nov 16 04:41:41 1998 J"orn Rennecke <>
* function.c (purge_addressof_1): Unshare rtl created by
Mon Nov 16 04:23:06 1998 J"orn Rennecke <>
* regmove.c (regmove_optimize): Don't do anything but
optimize_reg_copy[123] when flag_regmove is not set.
Sat Nov 14 15:05:07 1998 Richard Henderson <>
* (addsi3, subsi3): Revise 5 Nov change to store DImode
value in paradoxical SImode result, rather than truncating midpoint.
Fri Nov 13 22:19:23 1998 Richard Henderson <>
* alpha.c (reg_not_elim_operand): New.
* alpha.h (PREDICATE_CODES): Add it.
* (s48addq, s48subq patterns): Use it as the predicate
for the multiplicand.
Fri Nov 13 22:50:37 1998 David Edelsohn <>
* (movsf): Remove explicit secondary-reload-like
functionality. Only truncate SFmode store if in FPR.
(movsf splitters): Combine const_double splitters.
(movsf_hardfloat): Add GPR support.
Fri Nov 13 11:02:11 1998 Stan Cox <>
deprecate -mlive-g0 and -mbroken-saverestore.
* t-splet (MULTILIB_OPTIONS): Likewise.
* sparc.c (sparc_flat_compute_frame_size): Correctly calc args_size
in a leaf function. Clarify total_size/extra_size relationship.
Thu Nov 12 19:20:57 1998 Geoffrey Noer <>
* i386/cygwin32.asm: Delete.
* i386/cygwin.asm: New file, renamed from cygwin32.asm.
* i386/cygwin32.h: Delete.
* i386/cygwin.h: New file, renamed from cygwin32.h.
* i386/t-cygwin32: Delete.
* i386/t-cygwin: New file, renamed from t-cygwin32. Include
cygwin.asm instead of cygwin32.asm. Remove "32" from comment.
* i386/x-cygwin32: Delete.
* i386/x-cygwin: New file, renamed from x-cygwin32.
* i386/xm-cygwin32: Delete.
* i386/xm-cygwin: New file, renamed from xm-cygwin32. Use newly
renamed cygwin_ funcs for path translations.
* i386/win32.h: Define __CYGWIN__ when -mcygwin given.
* i386/winnt.c: Remove "32" from comment about cygwin.
* i386/mingw32.h: Fix references to cygwin32.h in light of above.
* rs6000/cygwin32.h: Delete.
* rs6000/cygwin.h: New file, renamed from cygwin32.h. Add
* rs6000/x-cygwin32: Delete.
* rs6000/x-cygwin: New file, renamed from x-cygwin32.
* rs6000/xm-cygwin32: Delete.
* rs6000/xm-cygwin: New file, renamed from xm-cygwin32.
* Check for cygwin* instead of cygwin32. Account
for the rename of cygwin-related config files to lose the "32"s.
* configure: Regenerate.
* cccp.c, collect2.c, gcc.c, getpwd.c, libgcc2.c, protoize.c,
toplev.c: Change all refs to __CYGWIN32__ to __CYGWIN__.
Wed Nov 11 12:25:19 1998 Tom Tromey <>
* (JAVAGC): New macro.
* configure: Rebuilt.
* Recognize --enable-java-gc argument. Subst
`JAVAGC' variable.
Thu Nov 12 03:32:16 1998 J"orn Rennecke <>
Handle equivalences that have been obscured by gcse:
* reload1.c (reload): Handle equivalences set up in multiple places.
* local-alloc.c (reg_equiv_init_insns): New variable.
(no_equiv): New function.
(update_equiv_regs): Handle equivalences set up in multiple places.
Don't ignore an insn just because its destination is likely to be
Wed Nov 11 13:46:13 1998 Jim Wilson <>
* except.c (expand_eh_return): Readd force_operand call lost in
Sept 15 change.
Tue Nov 10 17:04:11 1998 David Edelsohn <>
* rs6000.h (LEGITIMIZE_ADDRESS): Add missing goto on last case.
1998-11-09 Andreas Schwab <>
* dbxout.c: Check HAVE_STAB_H instead of HAVE_STABS_H.
Mon Nov 9 20:15:19 1998 Bernd Schmidt <>
* regmove.c (regmove_optimize): Fix error in last change.
Mon Nov 9 16:37:52 1998 Andrew Cagney <>
* mips.c (function_prologue): When TARGET_MIPS16, adjust the register
offset in the .mask pseudo to compensate for frame pointer adjustments.
(mips16_fp_args, build_mips16_call_stub): For little endian, do not
word swap arguments moved to/from FP registers.
* mips16.S (DFREVCMP): Reverse arguments to OPCODE.
Mon Nov 9 09:47:06 1998 Jeff Law (
* version.c: Bump for snapshot.
Mon Nov 9 02:14:14 1998 Jeff Law (
* version.c: Bump for snapshot.
Mon Nov 9 03:06:24 1998 Jeffrey A Law (
* reload1.c (delete_output_reload_insn): If a pseudo is set multiple
times, then it can not be completely replaced.
Mon Nov 9 00:39:02 1998 Richard Henderson <>
* (call, call_value) [OSF]: Correct alt 3 insn length.
Sun Nov 8 17:50:30 1998 Kaveh R. Ghazi <>
* gansidecl.h: Prepend a "G" to the macro wrapping this file
(to distinguish it from the macro wrapping ansidecl.h.)
Include libiberty's ansidecl.h. Remove all redundant definitions.
Define the PROTO() style macros in terms of the PARAMS() ones.
* calls.c (emit_library_call): Switch on ANSI_PROTOTYPES, not
__STDC__, when deciding whether to use ANSI variable args.
(emit_library_call_value): Likewise.
* cccp.c (error): Likewise.
(warning): Likewise.
(error_with_line): Likewise.
(warning_with_line): Likewise.
(pedwarn): Likewise.
(pedwarn_with_line): Likewise.
(pedwarn_with_file_and_line): Likewise.
(fatal): Likewise.
* cexp.y (error): Likewise.
(pedwarn): Likewise.
(warning): Likewise.
* collect2.c (fatal_perror): Likewise.
(fatal): Likewise.
(error): Likewise.
* combine.c (gen_rtx_combine): Likewise.
* cpperror.c (cpp_message): Likewise.
(cpp_fatal): Likewise.
* cpplib.c (cpp_error): Likewise.
(cpp_warning): Likewise.
(cpp_pedwarn): Likewise.
(cpp_error_with_line): Likewise.
(cpp_warning_with_line): Likewise.
(cpp_pedwarn_with_line): Likewise.
(cpp_pedwarn_with_file_and_line): Likewise.
* cpplib.h: Don't define PARAMS() macro.
* demangle.h: Likewise.
* doprint.c (checkit): Switch on ANSI_PROTOTYPES, not __STDC__,
when deciding whether to use ANSI variable args.
* emit-rtl.c (gen_rtx): Likewise.
(gen_rtvec): Likewise.
* final.c (asm_fprintf): Likewise.
* fix-header.c (cpp_message): Likewise.
(fatal): Likewise.
(cpp_fatal): Likewise.
* gcc.c (concat): Likewise.
(fatal): Likewise.
(error): Likewise.
* genattr.c (fatal): Likewise.
* genattrtab.c (attr_rtx): Likewise.
(attr_printf): Likewise.
(fatal): Likewise.
* gencodes.c (fatal): Likewise.
* genconfig.c (fatal): Likewise.
* genemit.c (fatal): Likewise.
* genextract.c (fatal): Likewise.
* genflags.c (fatal): Likewise.
* genopinit.c (fatal): Likewise.
* genoutput.c (fatal): Likewise.
(error): Likewise.
* genpeep.c (fatal): Likewise.
* genrecog.c (fatal): Likewise.
* halfpic.h: Switch on ANSI_PROTOTYPES, not __STDC__, when
deciding whether to declare `tree_node' and `rtx_def'.
* hash.h: Don't define stuff we get from gansidecl.h.
* mips-tfile.c: Likewise. Define __proto() in terms of PARAMS().
(fatal): Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
whether to use ANSI variable args.
(error): Likewise.
* prefix.c (concat): Likewise.
* scan.h: Likewise.
* system.h: Likewise.
* toplev.c (error_with_file_and_line): Likewise.
(error_with_decl): Likewise.
(error_for_asm): Likewise.
(error): Likewise.
(fatal): Likewise.
(warning_with_file_and_line): Likewise.
(warning_with_decl): Likewise.
(warning_for_asm): Likewise.
(warning): Likewise.
(pedwarn): Likewise.
(pedwarn_with_decl): Likewise.
(pedwarn_with_file_and_line): Likewise.
(sorry): Likewise.
(really_sorry): Likewise.
* toplev.h: Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
whether to declare `tree_node' and `rtx_def'.
* tree.c (build): Switch on ANSI_PROTOTYPES, not __STDC__, when
deciding whether to use ANSI variable args.
(build_nt): Likewise.
(build_parse_node): Likewise.
Sun Nov 8 13:10:55 1998 Jeff Law (
* version.c: Bump for snapshot.
Sat Nov 7 23:34:01 1998 Kaveh R. Ghazi <>
* (libcpp.a): Check RANLIB_TEST before runing RANLIB.
Sat Nov 7 22:26:19 1998 David Edelsohn <>
* collect2.c (main, case 'b'): Use else if.
Sat Nov 7 15:35:25 1998 Kaveh R. Ghazi <>
* (host_xm_file, build_xm_file, xm_file, tm_file):
Arrange to include gansidecl.h in {ht}config.h & tm.h just
before the config/ directory headers.
(tm_file_list, host_xm_file_list, build_xm_file_list): Handle
gansidecl.h in the list of dependencies.
* (RTL_BASE_H): Don't depend on gansidecl.h.
(TREE_H, DEMANGLE_H, RECOG_H, REGS_H, libgcc2.a, stmp-multilib,
mbchar.o, collect2.o, pexecute.o, vfprintf.o, splay-tree.o, gcc.o,
gencheck.o, choose-temp.o, mkstemp.o, mkstemp.o, prefix.o,
dyn-string.o, cexp.o, cccp.o, cppmain.o, cpplib.o, cpperror.o,
cppexp.o, cppfiles.o, cpphash.o, cppalloc.o, scan-decls.o):
* cccp.c: Don't include gansidecl.h.
* cexp.y: Likewise.
* collect2.c: Likewise.
* config/c4x/c4x.c: Likewise.
* config/v850/v850.h: Likewise.
* cppalloc.c: Likewise.
* cpperror.c: Likewise.
* cppexp.c: Likewise.
* cppfiles.c: Likewise.
* cpphash.c: Likewise.
* cpplib.c: Likewise.
* cppmain.c: Likewise.
* cppulp.c: Likewise.
* demangle.h: Likewise.
* doprint.c: Likewise.
* dyn-string.c: Likewise.
* eh-common.h: Likewise.
* fix-header.c: Likewise.
* frame.c: Likewise.
* gcc.c: Likewise.
* gcov.c: Likewise.
* gen-protos.c: Likewise.
* gencheck.c: Likewise.
* halfpic.h: Likewise.
* hash.c: Likewise.
* machmode.h: Likewise.
* mbchar.c: Likewise.
* prefix.c: Likewise.
* protoize.c: Likewise.
* recog.h: Likewise.
* rtl.h: Likewise.
* scan-decls.c: Likewise.
* tree.h: Likewise.
* varray.h: Likewise.
Sat Nov 7 11:37:53 1998 Richard Henderson <>
* (call_value_pop): If we're not popping anything,
defer to call_value.
(call_pop): Likewise defer to call.
Sat Nov 7 02:49:56 1998 Richard Henderson <>
* function.c (purge_addressof): Clear purge_addressof_replacements
only after processing the whole function.
Sat Nov 7 00:54:55 1998 Jeffrey A Law (
* reload1.c (reload): If we can not perform a particular elimination
when we thought we could earlier, then we must always iterate through
the loop at least one more time.
Fri Nov 6 19:37:33 1998 Richard Henderson <>
* alpha.c (add_operand): Simplify the CONST_INT match.
(sext_add_operand): Correct typo in comparison by using
* (s?addq): Use sext_add_operand to allow the negative
constant alternatives to be generated.
(mulsi3, muldi3, umuldi3_highpart): Loosen constraints to allow
small constants, since the hw instructions do.
Fri Nov 6 20:15:19 1998 Bernd Schmidt <>
* reload1.c (emit_reload_insns): When rewriting the SET_DEST of a
previous insn to store directly into our reload register, make sure
that if the source of the previous insn is a reload register, its
spill_reg_store and spill_reg_stored_to values are cleared.
Fri Nov 6 16:35:10 1998 David Edelsohn <>
* (floatunssidf2_internal splitter): Use base register
operand, not hard-coded SP.
Fri Nov 6 04:07:53 1998 David S. Miller <>
* jump.c (calculate_can_reach_end): Fix thinko.
Fri Nov 6 00:16:04 1998 Jeffrey A Law (
* reorg.c (fill_simple_delay_slots): Fix typo.
* romp.h (LEGITIMIZE_ADDRESS): Fix typo.
Fri Nov 6 00:10:00 1998 Jan Hubicka (
* (extendsidi2): Use # in the output template.
(extendsidi splitters): New splitters.
Thu Nov 5 11:13:27 1998 Nick Clifton <>
* Use unknown-elf.h as tm_file for arm-elf
* configure: Regenerate.
Thu Nov 5 07:59:05 1998 David S. Miller <>
* jump.c (init_label_info, delete_barrier_successors,
mark_all_labels, delete_unreferenced_labels,
delete_noop_moves, calculate_can_reach_end): New functions broken
out of jump_optimize.
(jump_optimize): Use them.
Thu Nov 5 07:57:45 1998 Andrew MacLeod <>
* except.c (expand_fixup_region_end): Make sure outer context labels
are not issued in an inner context during cleanups.
Thu Nov 5 04:03:06 1998 Richard Henderson <>
* (addsi3, subsi3): No new temporaries once cse is
no longer expected.
Thu Nov 5 03:29:19 1998 Richard Henderson <>
* (addsi3, subsi3): Expand to a DImode temporary so as
to expose this midpoint to CSE.
Thu Nov 5 03:42:54 1998 David S. Miller <>
* config/sparc/ (movdf_const_intreg_sp64): Enable again.
Thu Nov 5 10:53:01 1998 Andreas Schwab <>
* Bring over gcc2 change of Nov 19 1997.
Wed Nov 4 23:43:08 1998 Graham <>
* toplev.c (output_lang_identify): Make definition dependent on
* print-rtl.c (spaces): Make static.
Wed Nov 4 22:16:36 1998 Hans-Peter Nilsson <>
* extend.texi: Clarify proper uses for register clobbers in asms.
Wed Nov 4 22:16:36 1998 Bernd Schmidt <>
* recog.h (enum op_type): Define.
(constrain_operands): Adjust prototype.
(recog_op_type): Declare new variable.
* recog.c (recog_op_type): New variable.
(insn_invalid_p): Allow modifying an asm statement after reload.
(extract_insn): Set up recog_op_type.
(constrain_operands): Lose INSN_CODE_NUM arg. All callers changed.
Don't compute operand types, use recog_op_type.
Use the information computed by extract_insn instead of the previous
method of finding it by insn code number.
* caller-save.c (init_caller_save): Use extract_insn, not insn_extract.
* reorg.c (fill_slots_from_thread): Likewise.
* reload1.c (reload_as_needed): Likewise.
(gen_reload): Likewise.
(inc_for_reload): Likewise.
(reload_cse_simplify_operands): Likewise.
Use the information computed by extract_insn instead of the previous
method of finding it by insn code number.
* genattrtab.c (write_attr_case): Generate call to extract_insn, not
* final.c (final_scan_insn): Use extract_insn, not insn_extract.
(cleanup_operand_subregs): Use extract_insn, not insn_extract.
Use the information computed by extract_insn instead of the previous
method of finding it by insn code number.
* regmove.c (find_matches): Likewise. Change meaning of the return
value to be nonzero if the optimization can be performed, zero if
not. All callers changed.
Shorten some variable names to fix formatting problems.
(regmove_optimize): Shorten some variable names to fix formatting
Use the information computed by extract_insn instead of the previous
method of finding it by insn code number.
* regclass.c (scan_one_insn): Likewise.
(record_reg_classes): Don't compute operand types, use recog_op_type.
* reload.c (find_reloads): Lose CONSTRAINTS1 variable; use
recog_constraints instead.
Wed Nov 4 21:37:46 1998 Jeffrey A Law (
* rtl.h (flow2_completed): Declare.
* flow.c (flow2_completed): Definition.
* toplev.c (rest_of_compilation): Set and clear flow2_completed
as necessary.
Wed Nov 4 19:15:37 1998 Melissa O'Neill <>
* (libcpp.a): Ranlib libcpp.a.
* cppulp.c (user_label_prefix): Initialize.
Wed Nov 4 19:07:08 1998 John Wehle (
* flow.c (mark_regs_live_at_end): Mark the stack pointer as live
at a RETURN if current_function_sp_is_unchanging is set.
Wed Nov 4 18:16:29 1998 Herman A.J. ten Brugge <>
* emit-rtl.c (try_split): Fixed error in Oct 10 patch.
Wed Nov 4 15:11:15 1998 Geoffrey Noer <>
(SUBTARGET_SWITCHES): Add -mno-cygwin, -mcygwin, and -mdll options.
(CPP_PREDEFINES): Don't define __CYGWIN32__ here.
(STARTFILE_SPEC): Handle -mdll, -mno-cygwin options.
(CPP_SPEC): Handle -mno-cygwin option. Define __CYWIN__ in addition
to __CYGWIN32__.
(LIB_SPEC): Handle -mno-cygwin option.
(LINK_SPEC): Handle -mdll.
Wed Nov 4 22:56:14 1998 J"orn Rennecke <>
* reload.c (find_reloads): Fix test for usage by other reload
to handle secondary reloads properly.
Wed Nov 4 17:25:10 1998 Kaveh R. Ghazi <>
* reload1.c (ELIMINABLE_REGS, NUM_ELIMINABLE_REGS): Introduce an
intermediate structure which has exactly the members provided by
static intermediate structure.
(init_elim_table): Xmalloc() `reg_eliminate', and initialize it
from the intermediate structure. Do the same analogous fix in
the case where ELIMINABLE_REGS is not defined.
Tue Nov 3 20:50:03 1998 Jeffrey A Law (
* pa.h (SELECT_SECTION): Fix thinko.
Tue Nov 3 17:51:36 1998 Jim Wilson <>
* dwarf2out.c (output_call_frame_info): Comments on last change.
Tue Nov 3 07:51:43 1998 Richard Earnshaw (
* arm.c (add_constant): When taking the address of an item in the
pool, get the mode of the item addressed.
* arm.c (final_prescan_insn case INSN): If an insn doesn't
contain a SET or a PARALLEL, don't consider it for conditional
Restore ABI compatibility for NetBSD.
* arm/netbsd.h (DEFAULT_PCC_STRUCT_RETURN): Override setting in
Mon Nov 2 11:46:17 1998 Doug Evans <>
* m32r/m32r.c (m32r_expand_block_move): Fix byte count computations.
(m32r_output_block_move): Rewrite bytes < 4 handling.
Mon Nov 2 10:10:35 1998 Kaveh R. Ghazi <>
* collect2.c: Define VFORK_STRING as a printable string for
error messages (either "vfork" or "fork".) If HAVE_VFORK_H is
defined, include vfork.h. If VMS is defined, define vfork()
appropriately. Remove vfork check on USG, we're using autoconf.
(collect_execute): Pass VFORK_STRING to fatal_perror instead of
checking locally what string to pass.
(scan_prog_file): Likewise.
(scan_libraries): Likewise.
* gcc.c: Remove vfork check on USG, we're using autoconf.
Besides, no calls to vfork/fork occur in this file.
* protoize.c: Likewise.
Mon Nov 2 07:52:28 1998 Alexandre Oliva <>
* (DEFAULT_LINKER): Renamed from LD.
(DEFAULT_ASSEMBLER): Renamed from AS; reverted Schwab's patch.
(gcc_cv_as): Try $DEFAULT_ASSEMBLER before $AS.
* configure: Rebuilt.
Mon Nov 2 01:48:10 1998 Alexandre Oliva <>
* BUGS: Fix the regexp for `more' to find the appropriate node.
Reported by Joerg Pietschmann <>
* BUGS: Added link to the WWW FAQ.
Sun Nov 1 18:27:15 1998 Jeff Law (
* version.c: Bump for snapshot.
Sun Nov 1 11:04:32 1998 Jeffrey A Law (
* From Christian Gafton:
* i386/linux.h (CPP_PREDEFINES): Add -D__i386__.
* sparc/linux.h (CPP_PREDEFINES): Add -D__sparc__.
* sparc/linux64.h (CPP_PREDEFINES): Add -D__sparc__.
Sat Oct 31 21:42:39 1998 Mark Mitchell <>
* c-common.c (c_get_alias_set): Allow all type-punning through
unions. Don't get confused about the type of a bit-field, despite
the antics of build_modify_expr.
Sat Oct 31 22:35:29 1998 Jean-Pierre Radley <>
* fixinc.sco: Parameterize #include_next values.
* fixinc/fixinc.sco: Likewise.
Sat Oct 31 20:39:35 1998 Jeffrey A Law (
* toplev.c (rest_of_compilation): No longer set reload_completed.
* reload1.c (reload): Set it here. Perform instruction splitting
after reload has completed if we will be running the scheduler
Sat Oct 31 12:30:02 1998 Jeffrey A Law (
* jump.c (jump_optimize): Initialize mappings from INSN_UID to
EH region if exceptions are enabled and we're performing cross
jump optimizations.
(find_cross_jump): Exit loop if the insns are in different EH regions.
Sat Oct 31 10:02:48 1998 Mark Mitchell <>
* dwarf2out.c (output_call_frame_info): Use
ASM_OUTPUT_DWARF_DELTA4 for the CIE offset to match frame.c.
Sat Oct 31 10:23:14 1998 Kaveh R. Ghazi <>
Reinstall Apr 24th fix, lost during May 6th gcc2 merge:
* c-common.c (check_format_info): Don't check for the 'x'
format character twice, instead check for 'x' and 'X'
Fri Oct 30 14:50:25 1998 Jeffrey A Law (
* (assembler features): Also make gas is configured if
we find it in the source tree.
Fri Oct 30 13:23:20 1998 Richard Henderson <>
* i386.c (i386_comp_type_attributes): Compare whether the
attributes are defined, not their tree nodes.
Fri Oct 30 11:39:47 1998 Alexandre Oliva <>
* (gxx_include_dir): Bitten by autoconf quoting
characters. :-(
* configure: Rebuilt.
Fri Oct 30 10:43:29 1998 Andreas Schwab <>
* Ignore non-absolute value in $AS.
Fri Oct 30 00:54:25 1998 Peter Jakubek <>
* m68k.h (INDIRECTABLE_1_ADDRESS_P): Fix thinko.
Fri Oct 30 00:42:34 1998 Mark Elbrecht <>
* (msdosdjgpp): Set exeext and target_alias.
Thu Oct 29 23:55:43 1998 Bernd Schmidt <>
* flow.c (XNMALLOC): New macro.
(flow_int_list_blocks, basic_block_succ, basic_block_pred): New
static variables.
(add_edge, add_edge_to_label): New static functions.
(free_bb_memory): New function.
(flow_delete_insn): Delete function.
(basic_block_drops_in): Delete variable.
(find_basic_blocks): Allocate and initialize basic_block_head,
basic_block_succ. Don't allocate basic_block_drops_in.
Call free_bb_memory at the beginning.
(find_basic_blocks_1): Don't do multiple passes.
Delete code to compute basic_block_drops_in.
After calling make_edges, mark blocks reached by current block live.
Update test for unreachable live blocks.
(mark_label_ref): Delete args X, CHECKDUP. Add PRED arg. All callers
Simplify to call add_edge_to_label when a LABEL_REF is found.
(make_edges): Simplify to call add_edge_to_label instead of
mark_label_ref most of the time.
Compute here whether control drops into the next block.
(delete_unreachable_blocks): Return void. All callers changed.
Delete unreachable blocks in reverse order.
After deleting all unreachable blocks, renumber the remaining ones
and update n_basic_blocks.
(delete_block): Speed up deletion a bit.
Don't set basic_block_drops_in for deleted blocks.
(free_basic_block_vars): Don't free basic_block_drops_in.
(life_analysis_1): Update to use new edge representation.
(dump_flow_info): Delete code to print basic block info; call
dump_bb_data instead.
(compute_preds_succs): Delete code to recompute basic_block_drops_in
and uid_block_number.
Simply copy the previously computed cfg.
(dump_bb_data): New arg LIVE_INFO. All callers changed.
Print register lifetime information if LIVE_INFO is nonzero.
* basic-block.h (dump_bb_data): Adjust prototype.
* gcse.c (gcse_main): Update call to dump_bb_data.
* rtl.h (free_bb_memory): Declare.
* toplev.c (rest_of_compilation): Call free_bb_memory.
* reload1.c (struct elim_table): Delete MAX_OFFSET member.
(update_eliminable_offsets): Don't compute it.
(set_initial_elim_offsets): Don't initialize it.
Break out some code into set_initial_label_offsets so the rest of
this function can be called from reload_as_needed.
Assume that INITIAL_FRAME_POINTER_OFFSET is defined when
(set_initial_label_offsets): New function, broken out of
(set_offsets_for_label): New function, broken out of set_label_offsets
and reload_as_needed.
(reload): Call the two new functions.
(reload_as_needed): Call set_initial_elim_offsets instead of
duplicating the code. Likewise for set_offsets_for_label.
* reload1.c (choose_reload_regs): Fix typo in Oct 17 change.
(emit_reload_insns): Ensure that when we set reg_reloaded_valid for
any hard reg, reg_reloaded_dead contains valid data.
Thu Oct 29 22:30:54 1998 Marcus Meissner <>
* i386.c (i386_comp_type_attributes): Return nonzero for mismatched
"stdcall" and "cdecl" attributes.
Thu Oct 29 19:05:17 1998 Jim Wilson <>
* sched.c (update_flow_info): Add code to ! found_orig_dest case to
handle deleted no-op moves of hard registers.
* haifa-sched.c (update_flow_info): Likewise.
Thu Oct 29 18:07:47 1998 Jeffrey A Law (
* (reload_{in,out}{si,di}): Emit a USE of HILO at the end
of the sequences to reload the HILO register which do not actually
reference HILO.
Thu Oct 29 12:39:35 1998 Jim Wilson <>
* c-common.c (c_get_alias_set): Handle ARRAY_REF of union field.
Thu Oct 29 14:10:22 1998 Andrew MacLeod <>
* except.c (emit_eh_context): Make the EH context register stay alive
at -O0 so stupid.c doesn't get confused.
1998-10-29 Herman A.J. ten Brugge <>
* emit-rtl.c (try_split): Do not try to split a BARRIER.
Thu Oct 29 01:33:54 1998 Jan Hubicka <>
Jeffrey A Law (
(zero_extendsidi2): Use # in output template and handle completely by
(zero_extend splitters): New define_splits.
(ashiftrt_32): New pattern.
Wed Oct 28 22:58:35 1998 Jason Merrill <>
* tree.c (append_random_chars): New fn.
(get_file_function_name_long): Use it.
Wed Oct 28 22:27:05 1998 Richard Henderson <>
* (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
(LIBCPP_OBJS): New. Add cppulp.o.
(cppmain, fix-header): Depend on and use libcpp.a.
* (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
of the individual object files.
* objc/ (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
* cccp.c (user_label_prefix): New.
(main): Set it off -f*leading-underscore.
(special_symbol): Use it.
* cpplib.c (special_symbol): Likewise.
(cpp_handle_option): Handle -f*leading-underscore.
* cppulp.c: New file.
* output.h (user_label_prefix): Declare it.
* dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
* toplev.c (f_options, main): Handle -f*leading-underscore.
* defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
referencing USER_LABEL_PREFIX directly.
* config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
* m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
* final.c (asm_fprintf): Use user_label_prefix instead.
* arm/thumb.c (thumb_print_operand): Likewise.
* gcc.c (default_compilers): Pass -f*leading-underscore on to
cpp wherever appropriate.
Wed Oct 28 23:09:25 1998 Robert Lipe <>
* sco5.h (SUBTARGET_SWITCHES): Add documentation for OpenServer-
specific compiler switches.
Wed Oct 28 21:05:53 1998 Jeffrey A Law (
* (c-common.o): Depend on c-pragma.h. Use $(RTL_H) instead
of rtl.h.
Wed Oct 28 20:52:47 1998 Kaveh R. Ghazi <>
* gcc.c (EXTRA_SPECS, extra_specs): Introduce an intermediate
structure which has exactly the members provided by EXTRA_SPECS.
Xmalloc() the real `extra_specs', and initialize it from this
intermediate structure.
* alpha.h (EXTRA_SPECS): Revert change for missing initializers.
* mips.h (EXTRA_SPECS): Likewise.
* sparc.h (EXTRA_SPECS): Likewise.
Wed Oct 28 16:46:07 1998 Andreas Schwab <>
* function.c (purge_addressof_1): Instead of aborting when a
bitfield insertion as a replacement for (MEM (ADDRESSOF)) does not
work just put the ADDRESSOF on stack. Otherwise remember all such
successful replacements, so that exactly the same replacements
can be made on the REG_NOTEs. Remove the special case for CALL
insns again.
(purge_addressof_replacements): New variable.
(purge_addressof): Clear it at end.
1998-10-28 Zack Weinberg <>
* c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
(lang_init): Call check_newline always.
* c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
cpp_start_read, set yy_cur and yy_lim to read from
parse_in.token_buffer, so that we'll see the first #line
* cpplib.c (cpp_start_read): finclude the main input file
before processing -include/-imacros. Process -imacros and
-include separately, and handle -include by stacking a
buffer for the file in question as if it'd been #included.
* toplev.c (documented_lang_options): Recognize -H when
1998-10-28 Zack Weinberg <>
* cpplib.c: Merge do_once into do_pragma. Break file handling
code out of do_include.
Move append_include_chain, deps_output,
file_cleanup, redundant_include_p, import_hash,
lookup_import, add_import, read_filename_string, read_name_map,
open_include_file, finclude, safe_read to cppfiles.c.
Move prototypes for deps_output, append_include_chain,
finclude to cpplib.h. Move definition of struct
file_name_list there also.
* cppfiles.c: New file. Contains all the above functions
broken out of cpplib.c; also hack_vms_include_specification
from cccp.c and find_include_file, a new function broken out of
* (cppmain): Depend on cppfiles.o.
(fix-header): Likewise.
(cppfiles.o): New target.
* (--enable-c-cpplib): Add cppfiles.o to
extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
Wed Oct 28 14:06:49 1998 Jim Wilson <>
* dwarfout.c (dwarfout_file_scope_decl): If DECL_CONTEXT, don't abort
if pending_types is nonzero.
(dwarfout_finish): Verify pending_types is zero before finishing.
Wed Oct 28 10:29:09 1998 Nick Clifton <>
* expr.c (convert_move): Use shifts to perform the move if a
suitable extend pattern cannot be found. Code written by
Richard Henderson <>.
Wed Oct 28 03:59:29 1998 Bernd Schmidt <>
* regclass.c (renumber, regno_allocated): New static variables, moved
out of allocate_reg_info.
(allocate_reg_info): Move these two variables outside the function.
Move code to free memory into new function free_reg_info.
(free_reg_info): New function, broken out of allocate_reg_info.
* toplev.c (compile_file): Call free_reg_info, not allocate_reg_info.
* rtl.h (allocate_reg_info): Don't declare.
(free_reg_info): Declare.
* final.c (cleanup_subreg_operands): ASM_INPUTs need no treatment.
Wed Oct 28 02:38:12 1998 Jason Merrill <>
* toplev.c (compile_file): Temporarily revert last change.
Wed Oct 28 00:00:35 1998 Jason Merrill <>
* c-typeck.c (convert_for_assignment): Parenthesize.
1998-10-28 Andreas Schwab <>
* reload1.c (delete_output_reload): Avoid ambigous else.
Wed Oct 28 00:10:35 1998 Jeffrey A Law (
* toplev.c (compile_file): Call allocate_reg_info to free register
table memory.
* rtl.h (allocate_reg_info): Declare.
* PROJECTS: Remove entry for local spilling.
* final.c (cleanup_subreg_operands): New function.
(final_scan_insn): Use it.
(alter_subreg): Clear the "used" field when we turn a SUBREG into
a REG.
* reload1.c (reload): Delete CLOBBER insns and also cleanup SUBREG
operands when reload has finished.
* reload.h (cleanup_subreg_operands): Declare..
* flow.c (life_analysis_1): No longer delete CLOBBER insns after
reload. Handled in reload itself.
Tue Oct 27 23:32:34 1998 Bernd Schmidt <>
* reload1.c (verify_initial_offsets): New function.
(reload): Call it after reload_as_needed. Also verify that the frame
size stays constant during reload_as_needed.
* i386.h (CONST_DOUBLE_OK_FOR_LETTER_P): Undo Jul 26 change.
* reload.h (struct insn_chain): Add need_operand_change element.
* reload1.c (new_insn_chain): Clear it.
(calculate_needs_all_insns): Set it; don't overload need_reload.
(reload_as_needed): Use it.
* reload.c (find_reloads_address): Use BASE_REG_CLASS instead of
reload_address_base_reg_class throughout. Similar for INDEX_REG_CLASS
and reload_address_index_reg_class.
(find_reloads_address_1): Likewise.
* reload.h (reload_address_base_reg_class,
reload_address_index_reg_class): Don't declare.
* reload1.c (reg_old_renumber, pseudo_previous_regs,
pseudo_forbidden_regs, bad_spill_regs_global): New static variables.
(used_spill_regs): Now static.
(reload_address_base_reg_class, reload_address_index_reg_class,
regs_explicitly_used, counted_for_groups, counted_for_nongroups,
basic_block_needs, max_needs, group_size, group_mode, max_groups,
max_nongroups, max_needs_insn, max_groups_insn, max_nongroups_insn,
Deleted variables.
(init_reload): Delete code to compute base/index reg classes.
(reload): Delete variable J.
Delete code to manage basic_block_needs.
Don't compute regs_explicitly_used.
Allocate, initialize and free reg_old_renumber, pseudo_forbidden_regs,
Initialize bad_spill_regs_global.
Don't call order_regs_for_reload here.
Don't initialize spill_reg_order and n_spills.
Don't forbid explicitly used regs to be used for spill regs.
Change main loop to infinite loop, with explicit break statements.
Make SOMETHING_CHANGED variable local to that loop.
Don't initialize max_needs, max_groups, max_nongroups, max_needs_insn,
max_groups_insn, max_nongroups_insn, group_size, group_mode.
Make sure spilled_pseudos is cleared before calling spill_hard_reg or
Don't call dump_needs.
Delete code to reset potential_reload_regs.
Delete code to terminate loop conditional on the global needs variables
showing no further needs.
(calculate_needs_all_insns): Return void. All callers changed.
Initialize something_needs_elimination here, not in reload.
Delete avoid_return_reg kludge.
(calculate_needs): Lose AVOID_RETURN_REG and GLOBAL args, return void.
All callers changed.
Initialize the group_mode and group_size elements of the arg CHAIN.
Delete code to manage basic_block_needs.
Operate on elements of CHAIN instead of global variables.
Delete avoid_return_reg kludge.
(find_tworeg_group): Lose GLOBAL arg, take CHAIN arg, return void.
All callers changed.
Operate on elements of CHAIN instead of global variables.
Delete special SMALL_REGISTER_CLASSES code.
Delete spill_failure code; now in new_spill_reg.
(find_group): Lose GLOBAL arg, take CHAIN arg, return void.
All callers changed.
Operate on elements of CHAIN instead of global variables.
(maybe_mark_pseudo_spilled): New static function.
(find_reload_regs): Lose GLOBAL arg, take CHAIN arg, return void.
All callers changed.
Operate on elements of CHAIN instead of global variables.
Call order_regs_for_reload here, not in reload.
Initialize spill_reg_order and n_spills.
Simplify test whether an asm insn is involved.
Delete spill_failure code; now in new_spill_reg.
Call maybe_mark_pseudo_spilled for everything marked as live in
CHAIN. Merge CHAIN's used_spill_regs into the global variable
(dump_needs): Take CHAIN arg. No longer static, to prevent the
compiler from optimizing this function (now unused) away.
Operate on elements of CHAIN instead of global variables.
(possible_group_p): Lose MAX_GROUPS arg, take CHAIN arg. All callers
Operate on elements of CHAIN instead of global variables.
(count_possible_groups): Lose GROUP_SIZE, GROUP_MODE, MAX_GROUPS args,
take CHAIN arg. All callers changed.
Operate on elements of CHAIN instead of global variables.
(new_spill_reg): Lose MAX_NEEDS, MAX_NONGROUPS, GLOBAL args, take
CHAIN, NONGROUP args. Return void. All callers changed.
Verify caller isn't trying to spill a pseudo.
Simplify test for illegal reg, just use bad_spill_regs.
Generate better error messages.
Operate on elements of CHAIN instead of global variables.
Mark spilled register in CHAIN's used_spill_regs element.
Don't call spill_hard_reg.
(spill_hard_reg): Lose GLOBAL arg, return void. All callers changed.
Mark spilled hard regs in bad_spill_regs_global.
Mark affected pseudos in spilled_pseudos, but don't spill them.
(ior_hard_reg_set): New static function.
(finish_spills): Return int. All callers changed.
Compute spill_reg_order, n_spills and spill_regs here. Also update
regs_ever_live for regs used as spills.
For every pseudo in spilled_pseudos, spill it and mark the previous
hard reg it had in pseudo_previous_regs. Compute which hard regs
are used as spills in insns during which it is live, and retry global
register allocation. Update all life information in the
reload_insn_chain not to include pseudos without hard regs.
Call alter_reg for all affected speudos.
(scan_paradoxical_subregs): Disable SMALL_REGISTER_CLASSES special
case, it's not clear what it's supposed to do.
(hard_reg_use_compare): Take bad_spill_regs into account.
(pseudos_counted): New static variable.
(count_pseudo): New static function.
(order_regs_for_reload): Take CHAIN arg. All callers changed.
Initialize bad_spill_regs from bad_spill_regs_global, then merge any
hard registers explicitly used across the current insn into the set.
Compute hard_reg_n_uses taking only pseudos live across this insn
into account.
Tweak sorting of potential_reload_regs.
(compare_spill_regs): Delete function.
(reload_as_needed): Don't sort the spill_regs array, it's computed
in proper order in finish_spills.
Delete avoid_return_reg kludge.
Delete code to manage basic_block_needs.
(allocate_reload_reg): Minor speed/readability tweaks.
Operate on elements of CHAIN instead of global variables.
(choose_reload_regs): Lose AVOID_RETURN_REG arg. All callers changed.
Delete avoid_return_reg kludge.
Initialize reload_reg_used from CHAIN's used_spill_regs element.
Delete unused label FAIL.
(reload_combine): Replace reload_address_index_reg_class with
Don't use used_spill_regs to determine information about lifetime of
hard regs.
Tue Oct 27 13:15:02 1998 Nick Clifton <>
* toplev.c (display_help): Ignore empty target specific
options, and if -W is also specified on the command line then
display undocumented options.
* config/arm/arm.c: Updated with changes in devo sources.
* config/arm/arm.h: Updated with changes in devo sources.
* config/arm/lib1funcs.asm: Updated with changes in devo sources.
* config/arm/lib1thumb.asm: Add ELF support.
Tue Oct 27 16:11:43 1998 David Edelsohn <>
* collect2.c (aix64_flag): New variable.
(main, case 'b'): Parse it.
(GCC_CHECK_HDR): Object magic number must match mode.
(scan_prog_file): Only check for shared object if valid header.
Print debugging if header/mode mismatch.
Tue Oct 27 10:15:02 1998 Nick Clifton <>
Added support for arm-elf-linux configuration, submitted by Philip
Blundell <>, and integrated this with the arm-elf
code developed by Catherine Moore <>. The following
files are affected:
* Add arm-*-linux-gnu, armv2-*-linux and arm-*-elf
* configure: Regenerated.
* config/arm/aout.h: Add default definitions of REGISTER_PREFIX,
definitions conditional on their not having been already defined.
* config/arm/lin1funcs.asm: Add ELF only macros to generate .size
and .type directives, and add "(PLT)" qualification to function
* config/arm/linux.h: Deleted. This file is now superseded by
either linux-elf.h or linux-aout.h.
* config/arm/linux-gas.h: Define `inhibit_libc' if cross-compiling.
(CLEAR_INSN_CACHE): New macro, currently disabled (awaiting kernel
Move definitions from old linux.h file here.
* config/arm/elf.h: New file. Generic ARM/ELF support.
* config/arm/linux-aout.h: New file. Support for Linux with a.out.
* config/arm/linux-elf.h: New file. Support for Linux with ELF.
* config/arm/linux-elf26.h: New file. Support for Linux with ELF
using the 26bit APCS.
* config/arm/unknown-elf.h: New file. Support for OS'es other
than Linux with ELF.
* config/arm/t-arm-elf: New file. makefile fragment for arm-elf
* config/arm/coff.h: Include aout.h for basic assembler macros.
Add support for -mstructure_size_boundary=<n> command line option.
* config/arm/arm.h: Add support for -mstructure_size_boundary=<n>
command line option. Make macro definitions conditional on their
not having been already defined.
* config/arm/arm.c: Add support for -mstructure_size_boundary=<n>
command line option.
Tue Oct 27 08:56:46 1998 Andrew MacLeod <>
has been changed to not include a newline. Use this macro instead.
(output_enumeral_list, const_value_attribute, name_attribute,
comp_dir_attribute, prototyped_attribute, producer_attribute,
inline_attribute, pure_or_virtual_attribute, output_inheritance_die,
dwarfout_file_scope_decl, generate_new_sfname_entry,
generate_macinfo_entry, dwarfout_init, dwarfout_finish): Use
Mon Oct 26 13:35:02 1998 Richard Henderson <>
* combine.c (subst): Process the inputs to a parallel asm_operands
only once.
Mon Oct 26 13:32:31 1998 Richard Henderson <>
* stmt.c (expand_asm_operands): Accept `=' or `+' at any position.
Mon Oct 26 12:53:14 1998 Jeffrey A Law (
* tm.texi (ASM_OUTPUT_MAX_SKIP_ALIGN): Document.
Mon Oct 26 00:36:58 1998 Jeff Law (
* version.c: Bump for snapshot.
Sun Oct 25 23:36:52 1998 Jason Merrill <>
* stmt.c (expand_fixup): Set fixup->before_jump to a
Sun Oct 25 15:49:57 1998 Kaveh R. Ghazi <>
* (recog.o): Depend on toplev.h.
(insn-emit.o): Depend on recog.h.
(insn-peep.o): Depend on recog.h and insn-config.h.
* combine.c (simplify_set): Remove unused variable `scratches'.
* final.c (final_scan_insn): Wrap declaration of variables `vlen'
and `idx' in macro conditional controlling their use.
* genemit.c (main): Make the generated output file include
recog.h. Don't have it declare `insn_operand_constraint', since
we get it from recog.h.
* genpeep.c (main): Make the generated output file include
insn-config.h and recog.h.
* recog.c: Include toplev.h.
(extract_insn): Remove unused variable `p'.
* regclass.c (fix_register): Add missing braces around initializer
for `what_option'.
(allocate_reg_info): Move variable `i' into the scope where it is
used. Change its type to `size_t'.
Sun Oct 25 13:10:15 1998 Bernd Schmidt <>
* reload.c (push_reload): When merging reloads, make sure
that reload_in_reg and reload_in are from the same reload in
all cases.
Sun Oct 25 12:07:00 1998 Mumit Khan <>
* i386/crtdll.h (CPP_PREDEFINES): Fix typo.
* i386/mingw32.h (CPP_PREDEFINES): Likewise.
Fri Oct 23 23:42:03 1998 David Edelsohn <>
* loop.c (loop_has_tablejump): New variable.
(prescan_loop): Scan for it.
(insert_bct): Replace explicit scan with use of it.
* regclass.c (regclass): Restore loop variable j.
(record_reg_classes): Deterine op_types modifiers and initialize
classes[i] before matching constraints. Handle matching
constraints 5-9.
Fri Oct 23 13:55:48 1998 Jim Wilson <>
* m32r/m32r.c (gen_split_move_double): Call alter_subreg. Delete
subreg support.
Fri Oct 23 16:19:24 1998 Kaveh R. Ghazi <>
* mips.h (EXTRA_SPECS): Add missing initializers.
Fri Oct 23 16:08:39 1998 Kaveh R. Ghazi <>
* sparc.h (EXTRA_SPECS): Add missing initializers.
(sparc_defer_case_vector): Provide a prototype.
* svr4.h (ASM_OUTPUT_ASCII): Cast STRING_LIMIT to (long) when
comparing it to the result of a pointer subtraction.
Fri Oct 23 15:34:14 1998 Kaveh R. Ghazi <>
* alpha.c (override_options): Use ISDIGIT(), not isdigit(). Cast
the argument to (unsigned char).
* alpha.h (EXTRA_SPECS): Add missing initializers.
(ASM_GENERATE_INTERNAL_LABEL): Ensure the argument matches the
format specifier.
Fri Oct 23 13:12:35 1998 Jeffrey A Law (
* flow.c (life_analysis_1): Enable "rescan" code after reload.
(propagate_block): Delete dead code after reload.
* sched.c (update_flow_info): Revert Oct 19, 1998 change. Brings
back Oct 15, 1998 change.
* haifa-sched.c (update_flow_info): Likewise.
* flow.c (life_analysis_1): Delete CLOBBER insns after reload.
* (truncated shift): Accept constant inputs too.
Fri Oct 23 04:06:57 1998 Richard Earnshaw (
* machmode.h (mode_mask_array): No longer const.
* rtl.c (init_rtl): Fully initialize it if EXTRA_CC_MODES defined.
Fri Oct 23 11:19:06 1998 Martin v. Löwis <>
* frame.c: Somewhat explain `FDE'.
Suggested by Brendan Kehoe
Fri Oct 23 00:56:11 1998 Jason Merrill <>
* expr.c (pending_chain): Move up.
(save_expr_status): Do save pending_chain.
(restore_expr_status): And restore it.
* function.h (struct function): Add pending_chain.
1998-10-23 Herman A.J. ten Brugge <>
* reorg.c (relax_delay_slots): Fixed test for mostly_true_jump. The
did not match the code.
Fri Oct 23 00:07:01 1998 Bernd Schmidt <>
* regclass.c (regclass): Break out some code into new function
scan_one_insn, and into regclass_init.
(init_cost): New static variable, moved out of regclass.
(regclass_init): Initialize it here, not in .
(scan_one_insn): New static function, broken out of regclass.
* recog.c (apply_change_group): Break out some code into new
function insn_invalid_p.
(insn_invalid_p): New static fn, broken out of apply_change_group.
Thu Oct 22 22:34:42 1998 Jim Wilson <>
* reload1.c (reload_as_needed): When rewrite POST_INC, verify
reg_reloaded_contents matches incremented pseudo.
* v850/v850.c (v850_reorg): Call alter_subreg. Delete subreg support.
Fri Oct 23 11:11:56 1998 Michael Hayes <>
* rtl.def (POST_MODIFY, PRE_MODIFY): New generalized operators for
addressing modes with side effects. These are currently
placeholders for the C4x target.
Thu Oct 22 16:46:35 1998 Bernd Schmidt <>
* loop.c (express_from): Make sure that when generating a PLUS of
a PLUS, any constant expression appears on the outermost PLUS.
Thu Oct 22 15:46:23 1998 Per Bothner (
* (distdir-cvs, distdir-start): Clean up so it
works if "$(srcdir)" != ".".
Wed Oct 21 19:23:59 1998 Jim Wilson <>
* expmed.c (store_bit_field): If need to add a SUBREG, then remove
existing SUBREG if we can, otherwise abort.
Wed Oct 21 09:58:51 1998 Mark Mitchell <>
* c-common.c (c_apply_type_quals_to_decl): Don't crash when
`restrict' is applied to a non-pointer variable.
Wed Oct 21 09:18:58 1998 Mark Mitchell <>
* invoke.texi: Document -flang-isoc9x.
* (OBJS): Add splay-tree.o.
(c-common.o): Depend on rtl.h.
(splay-tree.o): List dependencies and provide build rule.
* rtl.h (record_alias_subset): New function.
* alias.c: Include splay-tree.h.
(alias_set_entry): New type.
(DIFFERENT_ALIAS_SETS_P): Use mem_in_disjoint_alias_sets_p.
(mems_in_disjoin_alias_sets_p): New function.
(alias_set_compare): Likewise.
(insert_subset_children): Likewise.
(get_alias_set_entry): Likewise.
* tree.h (TYPE_RESTRICT): New macro.
(TYPE_UNQUALIFIED): New manifest constant.
(TYPE_QUAL_CONST): Likewise.
(tree_type): Add restrict_flag. Reduce count of free bits.
(tree_decl): Add pointer_alias_set.
(build_qualified_type): New function.
(build_type_variant): Define in terms of build_qualified_type.
* tree.c (set_type_quals): New function.
(make_node): Initialize DECL_POINTER_ALIAS_SET.
(build_type_attribute_variant): Use build_qualified_type and
(build_type_variant): Rename, and modify, to become...
(build_qualified_type): New function.
(build_complex_type): Use set_type_quals.
* c-tree.h (C_TYPE_OBJECT_P): New macro.
(C_TYPE_FUNCTION_P): Likewise.
(c_apply_type_quals_to_decl): New function.
(c_build_qualified_type): New function.
(c_build_type_variant): Define in terms of c_build_qualified_type.
(flag_isoc9x): Declare.
* c-typeck.c (qualify_type): Use c_build_qualified_type.
(common_type): Change to use TYPE_QUALS.
(comptypes): Likewise.
(convert_for_assignment): Likewise.
* c-aux-info.c (gen_type): Likewise. Deal with `restrict'.
* c-decl.c (flag_isoc9x): Define.
(c_decode_option): Handle -flang-isoc9x.
(grokdeclarator): Update to handle restrict. Use TYPE_QUALS,
c_build_qualified_type, etc. Use c_apply_type_quals_to_decl.
* c-lex.c (init_lex): Deal with restrict.
(init_lex): Don't treat restrict as a reserved word in
-traditional mode, or without -flang-isoc9x.
* c-lex.h (rid): Add RID_RESTRICT.
* c-parse.gperf (restrict, __restrict, __restrict__): Make
equivalent to RID_RESTRICT.
* (TYPE_QUAL): Update comment.
* c-common.c: Include rtl.h.
(c_find_base_decl): New function.
(c_build_type_variant): Rename, and modify, to become ...
(c_build_qualified_type): New function.
(c_apply_type_quals_to_decl): Likewise.
(c_get_alias_set): For INDIRECT_REFs, check to see if we can find
a particular alias set for the reference.
* toplev.c (documented_lang_options): Add -flang-isoc9x.
Wed Oct 21 09:15:06 1998 Nick Clifton <>
* config/arm/arm.h (TARGET_SWITCHES): Document arm specific
command line switches.
Tue Oct 20 10:04:51 1998 Graham <>
* reload.c (loc_mentioned_in_p): Add missing braces to bind
else to correct if.
Mon Oct 19 16:34:05 1998 Tom Tromey <>
* gcc.c (option_map): Added --classpath and --CLASSPATH.
Tue Oct 20 10:59:02 1998 Gavin Romig-Koch <>
* regclass.c (fix_register): Add error message.
* invoke.texi (-fcall-used-REG,-fcall-saved-REG): Note the
new error message.
Tue Oct 20 10:12:17 1998 Kaveh R. Ghazi <>
* c-decl.c (warn_missing_noreturn): New global variable.
(c_decode_option): Check for new flags -W{no-}missing-noreturn.
(finish_function): Implement missing noreturn warning.
* c-tree.h (warn_missing_noreturn): Declare extern.
* invoke.texi: Document new flags.
* toplev.c (documented_lang_options): Add description.
Tue Oct 20 22:16:11 1998 Michael Hayes <>
* config/c4x/c4x.c (c4x_parallel_process): Disable until BCT
loop optimization stable for the C4x.
(c4x_rptb_info_t, c4x_dump, c4x_rptb_in_range, c4x_rptb_unjumped_loop,
c4x_rptb_find_comp_and_jump, c4x_rptb_loop_info_get,
c4x_rptb_emit_init, c4x_rptb_process): Deleted (superseded by BCT
loop optimization).
(c4x_address_conflict): Be more paranoid when packing a volatile
memref in a parallel load/store.
Tue Oct 20 21:56:05 1998 Michael Hayes <>
* config/c4x/ (repeat_block_top, repeat_block_end,
repeat_block_filler): Deleted.
(*ashlqi3_set, *ashrqi3_const_set, *ashrqi3_nonconst_clobber):
Condition code not set if destination register from 'c' class.
(*subbqi3_carry_clobber): Fix typo.
1998-10-18 Herman A.J. ten Brugge <>
* reorg.c (steal_delay_list_from_target): Check for insns that
modify the condition codes and effect the direction of the jump
in the sequence.
Sat Oct 17 13:09:09 1998 Graham <>
* function.c (purge_addressof_1): Replace call to
emit_insns_before() with emit_insn_before().
Mon Oct 19 19:34:03 1998 Mike Stump <>
* libgcc2.c (__pure_virtual): Call __terminate instead of _exit.
Mon Oct 19 13:26:24 1998 Bernd Schmidt <>
* jump.c (sets_cc0_p): Compile only if HAVE_cc0.
Mon Oct 19 11:40:56 1998 Jeffrey A Law (
* gcse.c (compute_hash_table): Correctly identify hard regs which are
clobbered across calls.
* loop.c (scan_loop): Be more selective about what invariants are
moved out of a loop.
Mon Oct 19 10:46:58 1998 Jeff Law (
* version.c: Bump for snapshot.
Mon Oct 19 11:40:56 1998 Jeffrey A Law (
* libgcc2.c (eh_context_static): Do not call malloc to allocate the
static eh_context structure.
Mon Oct 19 10:45:40 1998 Bernd Schmidt <>
* combine.c (recog_for_combine): Lose PADDED_SCRATCHES arg. All
callers changed.
(try_combine): Don't update max_scratch.
* flow.c (max_scratch, num_scratch): Delete variables.
(life_analysis_1): Don't initialize max_scratch.
(propagate_block): Don't update max_scratch.
(mark_set_1): Don't increment num_scratch.
* regs.h (max_scratch): Delete declaration.
Mon Oct 19 10:28:15 1998 Jeffrey A Law (
* reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
is nonzero. This is temporary!
* sched.c (update_flow_info): Handle death notes made invalid by
instruction splitting. Partially reverts Oct 15, 1998 patch.
* haifa-sched.c (update_flow_info): Likewise.
Sun Oct 18 17:31:26 1998 Jeffrey A Law (
* function.c (uninitialized_vars_warning): Do not warn for a VAR_DECL
if it has a nonzero DECL_INITIAL.
Sat Oct 17 23:18:08 1998 Kaveh R. Ghazi <>
* (flow.o): Depend on recog.h.
* cpplib.h (directive_table): Add missing initializiers.
(finclude): Change type of variable `bsize' to size_t.
* cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
* dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
* fix-header.c (lookup_std_proto): Cast the result of `strlen' to
`int' when comparing against one.
(cpp_file_line_for_message): Mark parameter `pfile' with
(cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
* flow.c: Include recog.h.
(sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
* function.c (thread_prologue_and_epilogue_insns): Mark parameter
(reposition_prologue_and_epilogue_notes): Likewise.
* genopinit.c (gen_insn): Cast argument of ctype functions to
`unsigned char'.
* haifa-sched.c: Include recog.h.
(blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
comparing against one.
* libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
* mips-tfile.c (parse_end): Cast the argument of ctype function to
`unsigned char'.
(parse_ent): Likewise.
(parse_input): Likewise.
* optabs.c (init_libfuncs): Likewise.
* protoize.c (find_rightmost_formals_list): Likewise.
* recog.h (const_double_operand): Fix typo in prototype.
* tlink.c (scan_linker_output): Cast the argument of ctype
function to `unsigned char'.
* toplev.c (check_lang_option): Cast the result of `strlen' to
`int' when comparing against one.
Sat Oct 17 13:09:09 1998 Graham <>
* gcse.c (dump_cuid_table): Correct typo.
Sat Oct 17 11:02:47 1998 Nick Clifton <>
* toplev.c (display_help): Prepend '-m' to target specific
(check_lang_option): Ignore text after end of first word of a
language specific option.
Sat Oct 17 02:26:03 1998 Bernd Schmidt <>
* reload1.c (reg_used_by_pseudo): New static variable.
(choose_reload_regs): Initialize it.
Use it instead of testing spill_reg_order to determine whether a
pseudo is live in a hard register across the current insn.
Fix a typo in a reference to reload_reg_rtx.
* flow.c (propagate_block): Replace code that computes and uses
regs_sometimes_live with simpler code that just walks the set of
currently live registers.
* (insn-extract.o): Fix dependencies.
* genextract.c (main): Generate includes for insn-config.h and
Delete generation of declarations which are now in recog.h.
* genrecog.c (main): Delete generation of definitions which are
now in recog.c.
* local-alloc.c (block_alloc): Use extract_insn and the variables
it sets up instead of looking up values by insn_code.
* recog.c (recog_operand, recog_operand_loc, recog_dup_loc,
recog_dup_num): Define here instead of generating the definition in
(recog_n_operands, recog_n_dups, recog_n_alternatives,
recog_operand_mode, recog_constraints, recog_operand_address_p):
New variables.
(extract_insn): New function.
* recog.h (extract_insn): Declare function.
(which_alternative, recog_n_operands, recog_n_dups,
recog_n_alternatives, recog_operand_mode, recog_constraints,
recog_operand_address_p): Declare variables.
* regclass.c (n_occurrences): New static function.
* reload.c (n_occurrences): Delete function.
(find_reloads): Use extract_insn.
* reload.h (n_occurrences): Delete declaration.
Sat Oct 17 01:17:51 1998 Jeffrey A Law (
* reload1.c (reload_as_needed): Fix test for when to call
Fri Oct 16 20:40:50 1998 J"orn Rennecke <>
Fix consistency problems with reg_equiv_{mem,address};
Improve reload inheritance;
* reload.c (reload_out_reg): New variable.
(loc_mentioned_in_p, remove_address_replacements): New functions.
(remove_replacements): Deleted.
(push_reload): Set reload_out_reg[i].
When merging, also set reload_{in,out}_reg[i], and remove
duplicate address reloads.
(combine_reloads): Copy reload_out_reg[i].
(find_reloads): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
Include *recog_operand_loc in commutativity operand changes.
Generate optional output reloads.
Delete reference to n_memlocs. Don't set *recog_operand_loc before
processing operands. Call make_memloc in reg_equiv_address code.
Set *recog_operand_loc only after processing operands, and only
if replace is true. Return a value.
When changing address reload types for operands that didn't get
Don't emit USEs for pseudo SUBREGs when not replacing.
(find_reloads_address): Do make_memloc substitution also when
reg_equiv_memory_loc[regno] and num_not_at_initial_offset
are both nonzero.
(find_reloads_toplev): Likewise.
Call make_memloc in reg_equiv_address code.
(debug_reload_to_stream): Add code to output reload_out_reg.
(make_memloc): Delete local variable i, ifdefed out code, and
references to memlocs and n_memlocs.
(memlocs, n_memlocs): Delete.
(push_secondary_reload): Clear reload_out_reg.
(find_reloads_address_1): Provide memrefloc argument to all calls
to find_reloads_address.
In AUTO_INC code, handle non-directly addressable equivalences properly.
* reload.h (reload_out_reg, num_not_at_initial_offset): Declare.
(find_reloads): Add return type.
(remove_address_replacements, deallocate_reload_reg): Declare.
* reload1.c (num_not_at_initial_offset): No longer static.
(delete_address_reloads, delete_address_reloads_1): Likewise.
(deallocate_reload_reg): New function.
(spill_reg_stored_to): New array.
(eliminate_regs): Don't substitute from reg_equiv_memory_loc.
(eliminate_regs_in_insn): Move assignments of previous_offset and
max_offset fields, and recalculation of num_not_at_initial_offset
into new static function:
(update_eliminable_offsets) .
(reload_as_needed): Call update_eliminable_offsets after calling
Call forget_old_reloads_1 with contents of reloaded auto_inc
expressions if the actual addressing can't be changed to match the
(choose_reload_regs): For inheritance, replace
reload_reg_free_before_p test with reload_reg_used_at_all test, and
remove stand-alone reload_reg_used_at_all test.
Use reload_out_reg to determine which reload regs have output reloads.
Treat reload_override_in more similar to inherited reloads.
Handle (subreg (reg... for inheritance.
For flag_expensive_optimizations, add an extra pass to remove
unnecessary reloads from known working inheritance.
Delete obsolete code for pseudos replaced with MEMs.
Handle inheritance from auto_inc expressions.
(emit_reload_insns): If reload_in is a MEM, set OLD to
Don't reload directly from oldequiv; if it's a pseudo with a
stack slot, use reload_in[j].
Check that reload_in_reg[j] is a MEM before replacing reload_in
from reg_reloaded_contents.
Include non-spill registers in reload inheritance processing.
Also try to use reload_out_reg to set spill_reg_store /
In code to set new_spill_reg_store, use single_set to find out if
there is a single set.
Add code that allows to delete optional output reloads.
Add code to allow deletion of output reloads that use no spill reg.
At the end, set reload_override_in to oldequiv.
Also call delete_output_reload if reload_out_reg is equal to old
in oldequiv code.
Add code to call delete_output_reload for stores with no matching load.
Set / use spill_reg_stored_to.
Handle case where secondary output reload uses a temporary, but
actual store isn't found.
When looking for a store of a value not loaded in order to call
delete_output_reload, count_occurrences should return 0 for no
loads; but discount inherited input reloadill_reg_stored_to.
Do checks for extra uses of REG. Changed all
Use delete_address_reloads.
(reload): Take return value of find_reloads into account.
If a no-op set needs more than one reload, delete it.
(reload_reg_free_before_p): RELOAD_FOR_INPUT
for the same operand.
(clear_reload_reg_in_use): Check for other reloads that keep a
register in use.
(reload_reg_free_for_value_p): Handle RELOAD_FOR_OPERAND_ADDRESS /
Take into account when an address address reload is only needed
for the address reload we are considering.
(count_occurrences): Use rtx_equal_p for MEMs.
(inc_for_reload): Return instruction that stores into RELOADREG.
New argument two, IN, and rtx. Changed all callers.
(calculate_needs_all_insns, reload_as_needed):
Don't clear after_call for a CLOBBER.
Keep track of how many hard registers need to be copied from
after_call, and don't clear after_call before we have seen
that much copies, or we see a different instruction.
Fri Oct 16 10:58:23 1998 Jeffrey A Law (
* flow.c (find_basic_blocks_1): Do not delete unreachable blocks
after reload has completed.
Fri Oct 16 17:26:10 1998 Dave Brolley <>
* cpplib.c (cpp_get_token): Replace whitespace that occurs between
a macro name and the next token with a single blank if that whitespace
is in a macro buffer and the next token is not '('.
Fri Oct 16 15:44:02 1998 Dave Brolley <>
* cccp.c (rescan): Handle multibyte characters ending in backslash.
(rescan): Likewise.
(skip_if_group): Likewise.
(skip_to_end_of_comment): Likewise.
(macarg1): Likewise.
(discard_comments): Likewise.
(change_newlines): Likewise.
Fri Oct 16 15:26:24 1998 Dave Brolley <>
* c-lex.c (yylex): Fix unaligned access of wchar_t.
Fri Oct 16 10:47:53 1998 Nick Clifton <>
* config/arm/arm.h (TARGET_SWITCHES): Add --help documentation.
(TARGET_OPTIONS): Add --help documentation.
Fri Oct 16 11:49:01 1998 Kaveh R. Ghazi <>
* rtl.h (sets_cc0_p): Revert Oct 14 ATTRIBUTE_NORETURN change.
Fri Oct 16 07:08:46 1998 Bruce Korb <>
* fixinc/* Moved in from ../contrib directory in preparation
for integrating it into the normal build process. In particular,
fixinc/ must be config-ed into the build directory
as fixinc/Makefile. Proposed patches to ./ and
./ will be "in the mail" momentarily.
Fri Oct 16 08:13:46 1998 David S. Miller <>
* cse.c (cse_basic_block): Fixup hash flushing loop so we do not
accidently walk into the free list. Comment how that can happen.
(invalidate): Fix indentation.
Thu Oct 15 23:53:29 1998 Bernd Schmidt <>
Jeffrey A Law (
* flow.c (life_analysis_1): Do not clobber regs_ever_live after
reload. Never perform rescans of the insn chain after reload.
(propagate_block): Do not delete insn or create new autoinc addressing
modes after reload.
* jump.c (jump_optimize): Unconditionally use the code that was
previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
* reload1.c (reload): When reloading is finished, delete all
(emit_reload_insns): Delete all code that was conditional on
(no_longer_dead_regs): Delete variable.
(reload_cse_delete_death_notes): Delete function.
(reload_cse_no_longer_dead): Delete function.
(reload_cse_regs_1): Delete all code to handle deletion of death
(reload_cse_noop_set_p): Likewise.
(reload_cse_simplify_set): Likewise.
(reload_cse_simplify_operands): Likewise.
(reload_cse_move2add): Likewise.
* reorg.c (used_spill_regs): Delete declaration.
(max_label_num_after_reload): Delete declaration.
(find_dead_or_set_registers): Don't assume that spill regs are
dead at a CODE_LABEL.
* rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
even after reload.
* sched.c (sched_analyze_insn): Likewise.
(update_flow_info): Likewise.
* haifa-sched.c (sched_analyze_insn): Likewise.
(update_flow_info): Likewise.
* tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
* toplev.c (max_label_num_after_reload): Delete variable.
(rest_of_compilation): Don't set max_label_num_after_reload.
Call life_analysis after reload_cse_regs if optimizing.
* config/gmicro/gmicro.h: Delete comment referring to
* config/i386/i386.h: Likewise.
* config/m88k/m88k.h: Likewise.
* config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
* config/sh/sh.h: Likewise.
Thu Oct 15 19:48:41 1998 David Edelsohn <>
* loop.c (strength_reduce): Restore marking bct_p as
* rs6000.c (optimization_options): Change #ifdef HAIFA to
(small_data_operand): Remove TARGET_ELF condition for marking
Thu Oct 15 11:45:51 1998 Robert Lipe <>
* config/i386/sco5.h (MAX_OFILE_ALIGNMENT): Define.
(SELECT_SECTION): Resync with svr4.h.
Thu Oct 15 12:42:13 1998 David Edelsohn <>
* loop.c (strength_reduce): Undo Oct 14 change marking bct_p
Thu Oct 15 00:57:55 1998 Robert Lipe <>
* c-pragma.c (handle_pragma_token): Test for null tree before
dereferencing TREE_CODE.
Thu Oct 15 17:36:48 1998 Michael Hayes <>
* config/c4x/c4x.c: Convert to use GEN_INT.
(c4x_parallel_process): Rework to handle new repeat loop structure.
* config/c4x/ Convert to use GEN_INT.
(rptb_end): Convert to use GE test. Replace uses with clobbers.
(decrement_and_branch_on_count): Likewise.
* config/c4x/c4x.h (REPEAT_BLOCK_PROCESS): Deleted hook now that
loop.c has the desired functionality.
(rc_reg_operand): New prototype.
* config/c4x/t-c4x: Can now build all front ends.
Wed Oct 14 23:27:08 1998 Didier FORT (
* fixincludes: Fix up rpc/{clnt,svr,xdr}.h for SunOS.
Wed Oct 14 22:13:28 1998 Joel Sherrill (
* (stmp-fixinc): Do not install assert.h if not desired.
* config/t-rtems: Do not install assert.h -- use newlib's.
Wed Oct 14 21:57:08 1998 J"orn Rennecke <>
* combine.c (combine_instructions): When finished, call init_recog.
* regmove.c (optimize_reg_copy_3): Reject volatile MEMs.
Wed Oct 14 16:10:22 1998 Per Bothner <>
* toplev.c: If flag_syntax_only, don't open or write assembler file.
Wed Oct 14 13:26:05 1998 Kaveh R. Ghazi <>
* cppalloc.c (memory_full): Mark function prototype with
* demangle.h (collect_exit): Likewise.
* fix-header.c (v_fatal, fatal): Likewise.
* gcc.c (pfatal_with_name, pfatal_pexecute, fatal, fancy_abort):
* gcov.c (print_usage): Likewise.
* genattr.c (fatal, fancy_abort): Likewise.
* genattrtab.c (fatal, fancy_abort): Likewise.
* gencodes.c (fatal, fancy_abort): Likewise.
* genconfig.c (fatal, fancy_abort): Likewise.
* genemit.c (fatal, fancy_abort): Likewise.
* genextract.c (fatal, fancy_abort): Likewise.
* genflags.c (fatal, fancy_abort): Likewise.
* genopinit.c (fatal, fancy_abort): Likewise.
* genoutput.c (fatal, fancy_abort): Likewise.
* genpeep.c (fatal, fancy_abort): Likewise.
* genrecog.c (fatal, fancy_abort): Likewise.
* libgcc2.c (__eprintf, __default_terminate, __sjthrow,
__sjpopnthrow, __throw): Likewise.
* objc/objc-act.c (objc_fatal): Likewise.
* protoize.c (usage, aux_info_corrupted,
declare_source_confusing): Likewise.
* rtl.c (dump_and_abort): Likewise.
* rtl.h (sets_cc0_p): Likewise.
* toplev.c (float_signal, pipe_closed): Likewise.
1998-10-14 Andreas Schwab <>
* dwarf2out.c (expand_builtin_dwarf_reg_size): Look at all ranges
when generating the decision tree for the general case.
* config/m68k/m68k.h (HARD_REGNO_MODE_OK): Don't accept modes
wider that 12 bytes in fpu regs or wider than 8 byte in fpa regs.
Wed Oct 14 11:14:02 1998 Kaveh R. Ghazi <>
* (sched.o): Depend on recog.h.
* alias.c (REG_BASE_VALUE): Cast the result of REGNO() macro to
(unsigned) when comparing against one.
(find_base_value): Likewise.
(record_base_value): Cast variable `regno' to (unsigned) when
comparing against one. Cast the result of REGNO() macro to
(unsigned) when comparing against one.
(memrefs_conflict_p): Change type of variables `r_x' and `r_y' to
(init_alias_analysis): Add unsigned variable `ui'. Use it as loop
variable where an unsigned index is needed.
* caller-save.c (init_caller_save): Cast `-1' to (enum insn_code)
before comparing against one.
* collect2.c: Add prototypes for functions `error', `fatal' and
`fatal_perror'. Make these functions take variable arguments
instead of faking it with a fixed number of args.
(write_c_file_stat): Cast the argument of ctype macro to (unsigned
* combine.c (can_combine_p): Mark parameter `pred' with
(find_split_point): Cast variable `src' to (unsigned
HOST_WIDE_INT) when comparing against one.
(simplify_rtx): Cast 1 to (unsigned HOST_WIDE_INT) in shift.
(simplify_logical): Likewise.
(force_to_mode): Cast result of INTVAL() macro to (unsigned
HOST_WIDE_INT) when comparing against one. Cast 1 to (unsigned
HOST_WIDE_INT) in shift.
(simplify_and_const_int): Cast result of INTVAL() macro to
`unsigned HOST_WIDE_INT' when comparing against one.
(merge_outer_ops): Cast variable const0 to `unsigned
HOST_WIDE_INT' when comparing against the result of
GET_MODE_MASK() macro.
(simplify_comparison): Likewise for variable `c0'. Cast variable
`const_op' to `unsigned HOST_WIDE_INT' when comparing against
one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast the
result of `GET_MODE_MASK()/2' to `HOST_WIDE_INT' when comparing
against one. Cast `1' to `unsigned HOST_WIDE_INT' in shift. Cast
result of INTVAL() macro to `unsigned HOST_WIDE_INT' when
comparing against one.
(distribute_notes): Wrap variable `cc0_setter' in macro `HAVE_cc0'.
config/mips/mips.c (gen_int_relational): Cast result of INTVAL()
macro to `unsigned HOST_WIDE_INT' when comparing against one.
(output_block_move): Cast `sizeof' expression to (int) when
comparing against one.
(function_arg): Cast BITS_PER_WORD to `unsigned' when comparing
against one.
(save_restore_insns): Cast `base_offset' to `long' to match format
specifier in fprintf.
* config/mips/mips.h (Pmode): Cast the result of `Pmode' macro
to `enum machine_mode'.
* flow.c (life_analysis_1): Remove unused variable `insn'.
* gcc.c (translate_options): Move variables `j' and `k' into the
scope in which they are used. Change their types to `size_t'.
(set_spec): Cast the argument of ctype macro to `unsigned char'.
(read_specs): Likewise.
(process_command): Cast `sizeof' to (int) when comparing against one.
(do_spec_1): Cast the argument of ctype macro to `unsigned char'.
(handle_braces): Cast both sides of `==' expression to `long' to
ensure sign matching.
(main): Cast variable `i' to `int' when comparing against one.
* gcov-io.h (__fetch_long): Change type of parameter `bytes' from
int to size_t. Cast variable `i' to size_t when comparing against
* genattrtab.c (convert_set_attr_alternative): Remove unused
parameter `insn_code'. All callers changed.
(convert_set_attr): Likewise.
* genrecog.c (add_to_sequence): Cast result of XVECLEN() macro to
size_t when comparing against one. Likewise for variable `len'.
* global.c (global_alloc): Cast variable `max_regno' to size_t
when comparing against one. Likewise for variable `max_allocno'.
* jump.c (sets_cc0_p): Mark parameter `x' with ATTRIBUTE_UNUSED.
* local-alloc.c (validate_equiv_mem_from_store): Mark parameter
(find_free_reg): Cast `sizeof' expression to (int) when comparing
against one.
* loop.c (count_loop_regs_set): Remove unused variable `dest'.
(strength_reduce): Mark parameter `bct_p' with ATTRIBUTE_UNUSED.
(get_condition): Cast variable `const_val' to `unsigned
HOST_WIDE_INT' when comparing against one. Cast unsigned
expression to HOST_WIDE_INT when comparing against one.
(insert_loop_mem): Mark parameter `data' with ATTRIBUTE_UNUSED.
(load_mems_and_recount_loop_regs_set): Cast variable `nregs' to
`unsigned' when comparing against one.
* protoize.c (is_id_char): Change type of parameter `ch' to
unsigned char.
(munge_compile_params): Cast argument of ctype macro to (const
unsigned char).
(process_aux_info_file): Cast variable `aux_info_size' to int when
comparing against one.
(forward_to_next_token_char): Cast argument of ctype macro to
`const unsigned char'.
(edit_formals_lists): Likewise.
(find_rightmost_formals_list): Likewise.
(add_local_decl): Likewise.
(add_global_decls): Likewise.
(edit_fn_definition): Likewise.
(do_cleaning): Likewise.
(scan_for_missed_items): Likewise.
(edit_file): Cast variable `orig_size' to (int) when comparing
against one.
(main): Cast argument of ctype macro to `const unsigned char'.
* recog.c (const_int_operand): Mark parameter `mode' with
* regclass.c (record_reg_classes): Change type of variable `c' to
`unsigned char'. Cast `char' array index to `unsigned char'.
* reload.c (push_secondary_reload): Cast argument to
REG_CLASS_FROM_LETTER() macro to `unsigned char'.
* reload1.c (calculate_needs): Cast `char' array index to
`unsigned char'.
(set_label_offsets): Change type of variable `i' to unsigned int.
Cast result of XVECLEN() macro to unsigned when comparing against
(mark_not_eliminable): Change type of variable `i' to unsigned.
(order_regs_for_reload): Likewise. Cast `max_regno' to unsigned
when comparing against one.
(reload_as_needed): Cast macro NUM_ELIMINABLE_REGS to (int) when
comparing against one.
(choose_reload_regs): Hide unused label `fail'.
(reload_cse_simplify_operands): Cast `char' array index to
`unsigned char'.
(reload_combine_note_store): Mark parameter `set' with
ATTRIBUTE_UNUSED. Cast UNITS_PER_WORD to unsigned when comparing
against one.
(reload_cse_move2add): Remove unused variable `src2'.
* sched.c: Include recog.h.
(sched_note_set): Remove unused parameter `b'. All callers
(split_hard_reg_notes): Likewise for parameter `orig_insn'.
(blockage_range): Cast result of UNIT_BLOCKED() macro to (int)
when comparing against one.
* stupid.c (stupid_find_reg): Mark parameter `changes_size' with
ATTRIBUTE_UNUSED. Cast `sizeof' expression to (int) when
comparing against one.
* unroll.c (precondition_loop_p): Remove unused parameter
`loop_end'. All callers changed.
Tue Oct 13 22:12:11 1998 Bernd Schmidt <>
* reload1.c (maybe_fix_stack_asms): New static function.
(reload): Call it.
* reload.h (compute_use_by_pseudos): Declare.
* reload1.c (spilled_pseudos, insns_need_reload): New variables.
(something_needs_reloads): Delete variable.
(finish_spills): New function.
(compute_use_by_pseudos): New function.
(delete_caller_save_insns): Lose argument FIRST. All callers changed.
Use the reload_insn_chain instead of walking the rtl directly.
(reload): Allocate and free spilled_pseudos.
Ensure that all calls of spill_hard_reg are followed by a call to
Use the insns_need_reload list instead of something_needs_reloads
to find out if reload_as_needed must be called.
Clear unused_insn_chains at the end.
(calculate_needs_all_insns): Lose FIRST parameter. All callers
Delete code to keep track of current basic block.
Walk reload_insn_chain instead of the rtl structure. Build the
insns_need_reload chain.
Remember which insns need reloading/elimination by setting the
appropriate fields in struct insn_chain, not by putting modes on the
(calculate_needs): Lose THIS_BLOCK arg. Accept arg CHAIN instead of
arg INSN. All callers changed.
Delete declaration of struct needs.
Don't set something_needs_reloads.
Record insn needs in the CHAIN argument.
(spill_hard_reg): Record the affected pseudos in spilled_pseudos.
(reload_as_needed): Lose FIRST arg. All callers changed.
Walk the reload_insn_chain instead of the rtx structure.
Delete code to keep track of current basic block.
Rename one of the NEXT variables to OLD_NEXT.
(allocate_reload_reg): Accept arg CHAIN instead of arg INSN. All
callers changed.
(choose_reload_regs): Likewise.
(emit_reload_insns): Replace INSN and BB args with arg CHAIN. All
callers changed.
* caller-save.c (MOVE_MAX_WORDS): New macro. Use it throughout
instead of (MOVE_MAX / UNITS_PER_WORD) computation.
(hard_regs_live, hard_regs_need_restore): Delete variables.
(n_regs_saved): Now static.
(referenced_regs, this_insn_sets): New variables.
(setup_save_areas): Restructure the code a bit.
(restore_referenced_regs): Delete function.
(mark_referenced_regs): New function, similar to the old
restore_referenced_regs, but mark registers in referenced_regs.
(clear_reg_live): Delete function.
(mark_set_regs): Renamed from set_reg_live. All callers changed.
Only mark registers in this_insn_sets.
(save_call_clobbered_regs): Rework this function to walk the
reload_insn_chain instead of using the list of instructions directly.
Delete code to keep track of register lives, compute live regs on the
fly from information in the chain.
Instead of calling restore_referenced_regs, use mark_referenced_regs,
then walk the set it computes and call insert_restore as appropriate.
(insert_restore): Lose INSN and BLOCK args. Add CHAIN arg. All
callers changed.
Restructure the code a bit. Test hard_regs_saved instead of
(insert_save): Lose INSN and BLOCK args. Add CHAIN and TO_SAVE
args. All callers changed.
Restructure the code a bit. Use TO_SAVE to determine which regs to
save instead of more complicated test.
(insert_one_arg): Lose INSN and BLOCK args. Add CHAIN arg. All
callers changed.
Create a new insn_chain structure for the new insn and place it
into the chain.
* rtl.texi: Update documentation to reflect that reload no longer
puts modes on the insns.
1998-10-14 Andreas Schwab <>
* function.c (purge_addressof_1): Force the first argument of a
CALL insn to memory.
Wed Oct 14 00:38:40 1998 Jeffrey A Law (
* rtl.h: Delete duplicate prototypes. Add some missing
* rtlanal.c (for_each_rtx): Formatting tweak.
1998-10-13 Herman A.J. ten Brugge <>
* real.c (emdnorm and etoasc): Disable round to even for c4x target
to be compatible with TI compiler.
* (USER_H): Add va-c4x.h to definition.
Tue Oct 13 23:03:37 1998 Richard Henderson <>
* function.c (purge_addressof_1): Fix typo in inequality: do
bitfield optimization for equal mode sizes.
* expmed.c (store_bit_field): Don't take subregs of subregs in
the movstrict case. Tidy a potential problem in the multi-word case.
(extract_bit_field): Likewise.
Tue Oct 13 22:12:11 1998 Bernd Schmidt <>
* flow.c (find_basic_blocks): Emit NOPs after normal calls in this
Compute max_uid_for_flow by calling get_max_uid after the scan.
(find_basic_blocks_1): Don't emit NOPs here.
Tue Oct 13 22:05:49 1998 Richard Henderson <>
* alias.c (base_alias_check): Accept new args for the modes of the
two references. Use them to determine if an AND can overlap. Update
all callers.
(memrefs_conflict_p): Assume sizes are aligned, and uses them
to determine if an AND can overlap.
Tue Oct 13 17:51:04 1998 Jim Wilson <>
* config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
check. Add comment to document problems with TARGET_SUN_FPA version
of this macro.
* config/m68k/ (movxf+1): Support 'r'/'r' moves.
Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <>
* (gencheck.o): Depend on gansidecl.h.
* c-common.c (print_char_table): Add missing initializers.
(scan_char_table): Likewise.
(time_char_table): Likewise.
* c-decl.c (c_decode_option): Mark parameter `argc' with
(declare_parm_level): Mark parameter `definition_flag' with
* c-lex.c (readescape): Use `(unsigned)1' in shift.
(yylex): Likewise. Cast `sizeof' to an (int) when comparing
against one.
* calls.c (store_one_arg): Remove unused parameter `fndecl'. All
callers changed.
(emit_call_1): Mark parameters `fndecl' and `funtype' with
(expand_call): Cast result of MIN() to (unsigned int) when
comparing against an unsigned value.
* cccp.c (pcfinclude): Remove unused parameter `limit'. All
callers changed.
(make_definition): Remove unused parameter `op'. All callers
(create_definition): Cast REST_EXTENSION_LENGTH to (long) when
comparing against the result of pointer arithmetic.
* config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
when comparing against one.
* dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
(output_die): Move variable `i' into the scope in which it is
used. Change its type to `unsigned'.
(output_die): Cast the result of `strlen' to (int) when passing it
(output_pubnames): Likewise.
(output_line_info): Likewise.
* emit-rtl.c (global_rtl): Add missing initializers.
* explow.c (promote_mode): Mark parameter `for_call' with
* expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
`unsigned HOST_WIDE_INT' when comparing against one.
(synth_mult): Change type of variable `cost' to int.
(emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
* expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
when comparing against one.
(get_inner_reference): Change variable `alignment' to unsigned.
(expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
int) when comparing against one.
(expand_builtin_setjmp): Change type of variable `i' to size_t.
* fold-const.c (div_and_round_double): Cast BASE to
(HOST_WIDE_INT) when comparing against one.
* gencheck.c: Include gansidecl.h.
(main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
* optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
`tcode' with ATTRIBUTE_UNUSED.
* real.c (edivm): Cast constant value to (unsigned long) in
expression compared against an unsigned value.
* stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
comparing against one.
(expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
when comparing against one.
* stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
(unsigned int) when comparing against one. Likewise for
(smallest_mode_for_size): Likewise.
(save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
(restore_storage_status): Likewise.
* toplev.c (debug_args): Add missing initializer.
(f_options): Spelling correction. Add missing initializers.
(documented_lang_options): Likewise.
(debug_end_source_file): Mark parameter `lineno' with
* tree.c (valid_machine_attribute): Mark parameters `attr_args',
`decl' and `type' with ATTRIBUTE_UNUSED.
* varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
when comparing against one.
(assemble_variable): Mark parameter `top_level' with
(assemble_external_libcall): Mark parameter `fun' with
(output_constant_pool): Mark parameters `fnname' and `fndecl' with
Tue Oct 13 12:51:04 1998 Nick Clifton <>
* config/v850/lib1funcs.asm (_udivsi3): Add .type declaration.
Replace use of r5 with use of r19.
* config/v850/v850.h (LINK_POINTER_REGNUM): Define.
* config/v850/v850.c (compute_register_save_size): Allow for the
fact that helper functions save all registers, not just those used
by the function.
Replace constant 31 with macro LINK_POINTER_REGNUM.
* config/v850/ Use 'indirect_operand' rather than
'memory_operand' for bit test/set/clear patterns.
Tue Oct 13 11:49:14 1998 Jason Merrill <>
* varasm.c (assemble_start_function et al): Don't call
ASM_GLOBALIZE_LABEL for weak symbols.
Tue Oct 13 11:37:45 1998 Nick Clifton <>
* cse.c (equiv_constant): Check for NULL return from
Tue Oct 13 11:24:51 1998 Jeffrey A Law (
* (addsi3, subsi3, negsi2): Only allow register operands.
* collect2.c (main): Pass -EL/-EB through to the compiler.
1998-10-12 Herman A.J. ten Brugge <>
* expr.c (push_block): Handle targets where the stack grows
to higher addresses, but args grow to lower addresses and
Tue Oct 13 08:00:52 1998 Catherine Moore <>
* config/v850/v850.c (print_operand): Extend meaning
of 'c' operands to support .vtinherit.
Tue Oct 13 21:38:35 1998 Michael Hayes <>
* config/c4x/c4x.c: Convert to gen_rtx_FOO.
Added ATTRIBUTE_UNUSED to unused function arguments.
(rc_reg_operand): New predicate.
(c4x_rptb_insert): New function.
(c4x_rptb_nop_p): Recognize modified rptb_top pattern.
(c4x_optimization_options): New function.
* config/c4x/ Convert to gen_rtx_FOO.
(decrement_and_branch_on_count): New pattern.
(rptb_top): Modified pattern to work with BCT optimization.
* config/c4x/c4x.h (RC_REG): New register class.
(rc_reg_operand): Define prototype.
(IS_RC_REG): New macro.
(IS_RC_OR_PSEUDO_REG): New macro.
Mon Oct 12 19:57:34 1998 Jason Merrill <>
* collect2.c (extract_init_priority): No priority is 65535.
Mon Oct 12 12:10:37 1998 Alexandre Oliva <>
* (build_tooldir): New variable, same as old
$(tooldir), but without depending on $(libdir)/$(unlibsubdir).
(GCC_FOR_TARGET): Add -B$(build_tooldir)/bin/.
(bootstrap, bootstrap2, bootstrap3, bootstrap4): Likewise.
* (gxx_include_dir): Set default based on unlibsubdir.
* (tooldir): Likewise.
(cccp.o, cpplib.o): Use unlibsubdir implicitly through
gxx_include_dir, includedir and tooldir.
(protoize.o, unprotoize.o): Likewise.
Mon Oct 12 10:50:44 1998 Nick Clifton <>
* config/arm/ Replace (reg 24) with (reg:CC 24).
* config/arm/thumb.c (thumb_override_options): Add warning about
PIC code not being supported just yet.
Sun Oct 11 16:49:15 1998 John Wehle (
* flow.c: Update comment.
(notice_stack_pointer_modification): New static function.
(record_volatile_insns): Use it.
(mark_regs_live_at_end): Mark the stack pointer as alive
at the end of the function if current_function_sp_is_unchanging
is set.
(life_analysis_1): Set current_function_sp_is_unchanging.
* function.c: Define it.
(init_function_start): Initialize it.
* output.h: Declare it.
* reorg.c (fill_simple_delay_slots, dbr_schedule): Mark
the stack pointer as alive at the end of the function if
current_function_sp_is_unchanging is set.
* i386.c (ix86_epilogue): Optimize the restoring
of the stack pointer.
Mon Oct 12 01:22:53 1998 Jeff Law (
* version.c: Bump for snapshot.
Sun Oct 11 23:04:30 1998 Robert Lipe <>
* c-pragma.c (handle_pragma_token): If passed a token instead
of a tree, use that as the pack value.
Sun Oct 11 14:21:14 1998 Mark Mitchell <>
* flow.c (find_basic_blocks_1): Fix prototype.
Sun Oct 11 05:03:41 1998 Ken Raeburn <>
* tree.h (DECL_NO_CHECK_MEMORY_USAGE): New macros.
(struct tree_decl): New fields no_check_memory_usage.
* c-common.c (enum attrs): Add A_NO_CHECK_MEMORY_USAGE.
(init_attributes): Register it as a new attribute.
(decl_attributes): Set flags on functions given that attribute.
* c-decl.c (duplicate_decls): Merge new attribute.
* expr.h (current_function_check_memory_usage): Declare new var.
* calls.c, expr.c, function.c, stmt.c, alpha.c, clipper.c, m88k.c,
pa.c, sparc.c: Replace uses of flag_check_memory_usage with
* function.h: Add field to struct function.
* function.c (current_function_check_memory_usage): Define it.
(push_function_context_to, pop_function_context_from): Save and
restore it.
(expand_function_start): Set it, based on global flag and function
* expr.c (expand_expr, case VAR_DECL): In memory-checking code, do
check non-automatic variables, to permit detection of writes to
read-only locations in embedded systems without memory management.
* calls.c (store_one_arg): Use ARGS_SIZE_RTX to get size of argument
when emitting chkr_set_right_libfunc call, even if the argument is
BLKmode or variable-sized; don't abort.
* optabs.c (init_optabs): Create Checker and __cyg_profile_*
symbols in Pmode, not VOIDmode.
Sun Oct 11 01:03:05 1998 Zack Weinberg <>
* cppexp.c: When forcing unsigned comparisons, cast both sides
of the operation.
* cpphash.h: Move static declaration of hashtab[]...
* cpphash.c:
* cpplib.c: Cast difference of two pointers to size_t before
comparing it to size_t. Cast signed to unsigned
before comparing to size_t. (FIXME: struct argdata should use
unsigned buffer sizes.)
* cpplib.h (struct cpp_reader): Declare token_buffer_size as
unsigned int. (CPP_WRITTEN): Cast return value to size_t.
(CPP_RESERVE): Parenthesize N for evaluation order, cast to
size_t before comparison.
Sun Oct 11 00:15:29 1998 Jeffrey A Law (
* flow.c (find_basic_blocks): Delete "live_reachable_p" argument.
(find_basic_blocks_1): Similarly.
* output.h (find_basic_blocks): Fix prototype.
* gcse.c, toplev.c: Don't pass "live_reachable_p" argument to
find_basic_blocks anymore.
Sat Oct 10 22:00:34 1998 Richard Henderson <>
* basic-block.h (EXECUTE_IF_SET_IN_SBITMAP): New macro.
(sbitmap_free, sbitmap_vector_free): New macros.
* output.h (rtl_dump_file): Declare.
Sat Oct 10 17:01:42 1998 Jeffrey A Law (
* regmove.c (optimize_reg_copy_3): Honor TRULY_NOOP_TRUNCATION.
Fri Oct 9 22:08:05 1998 Kaveh R. Ghazi <>
* fp-bit.c (SFtype): Don't implicitly use int in declaration.
(DFtype): Likewise.
(_fpdiv_parts): Remove unused parameter `tmp', all callers changed.
(divide): Remove unused variable `tmp'.
(si_to_float): Cast numeric constant to (SItype) before comparing
it against one.
Fri Oct 9 16:03:19 1998 Graham <>
* flow.c (print_rtl_with_bb): Changed type of in_bb_p to match use.
* gcc.c (add_preprocessor_option): Correct typo when allocating
memory, sizeof() argument had one too many `*'.
(add_assembler_option): Likewise.
(add_linker_option): Likewise.
* gcov.c (output_data): Likewise.
* local-alloc.c (memref_used_between_p): Likewise.
(update_equiv_regs): Likewise.
* loop.c (strength_reduce): Likewise.
* reg-stack.c (record_asm_reg_life): Likewise.
(subst_asm_stack_reg): Likewise.
* reorg.c (dbr_schedule): Likewise.
Fri Oct 9 15:57:51 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
* flow.c (life_analysis_1): Break out some functions.
(find_basic_blocks_1): Likewise. Also move some variables out and
make them static.
Rename NONLOCAL_LABEL_LIST arg to NONLOCAL_LABELS and initialize
new static var nonlocal_label_list with it.
(active_eh_region, nested_eh_region, label_value_list,
nonlocal_label_list): New static variables.
(make_edges, delete_unreachable_blocks, delete_block): New static
functions, broken out of find_basic_blocks_1.
(record_volatile_insns, mark_regs_live_at_end, set_noop_p,
noop_move_p): New static functions, broken out of life_analysis_1.
Fri Oct 9 15:49:29 1998 Richard Henderson <>
* expmed.c (store_bit_field): Pun non-integral str_rtx modes.
Take extra care for op0 now possibly being a subreg.
(extract_bit_field): Likewise.
* function.c (purge_addressof_1): Revert Oct 4 change. Drop
the reg to memory if there is no equal sized integral mode.
* stor-layout.c (int_mode_for_mode): New function.
* machmode.h: Prototype it.
Fri Oct 9 14:26:44 1998 Jeffrey A Law (
* global.c (build_insn_chain): Verify no real insns exist past the
end of the last basic block, then exit the loop.
Fri Oct 9 11:44:47 1998 David Edelsohn <>
* loop.c (insert_bct): Ensure loop_iteration_var nonzero before use.
Thu Oct 8 21:59:47 1998 Dave Brolley <>
* emit-rtl.c (init_emit_once): Call INIT_EXPANDERS.
Thu Oct 8 22:03:45 1998 David Edelsohn <>
* rs6000.h (RTX_COSTS): Add PROCESSOR_PPC604e cases.
Thu Oct 8 17:00:18 1998 Richard Henderson <>
* flow.c (find_basic_blocks): Correctly determine when a call
is within an exception region.
Thu Oct 8 17:15:04 1998 Jeffrey A Law (
* toplev.c (output_file_directive): Use DIR_SEPARATOR, not '/'.
* cpplib.h: Protect from multiple inclusions.
* cpplib.c: Fix minor formatting problems.
* i386/xm-cygwin32.h: Only define POSIX if it is not already defined.
* jump.c (jump_optimize): Revert accidental patch.
* (cpplib.o): Use unlibsubdir.
Thu Oct 8 12:50:47 1998 Jim Wilson <>
* loop.c (get_condition): Allow combine when either compare is
Thu Oct 8 11:31:01 1998 Jeff Law (
* version.c: Bump for snapshot.
Thu Oct 8 12:21:14 1998 Richard Frith-Macdonald <>
* c-lex.c (remember_protocol_qualifiers): Handle RID_BYREF.
(init_lex): Initialize ridpointers[RID_BYREF].
* c-lex.h (enum rid): Add RID_BYREF.
* c-parse.gperf: Add RID_BYREF as a type qualifier.
* objc/objc-act.c (is_objc_type_qualifiers): Handle RID_BYREF.
(encode_type_qualifiers): Similarly.
* c-gperf.h: Rebuilt.
Thu Oct 8 05:56:00 1998 Jeffrey A Law (
* c-common.c (type_for_mode): Only return TItype nodes when
HOST_BITS_PER_WIDE_INT is >= 64 bits.
* c-decl.c (intTI_type_node, unsigned_intTI_type_node): Only declare
when HOST_BITS_PER_WIDE_INT is >= 64 bits.
(init_decl_processing): Only create TItype nodes when
HOST_BITS_PER_WIDE_INT is >= 64 bits.
* c-tree.h (intTI_type_node, unsigned_intTI_type_node): Only declare
when HOST_BITS_PER_WIDE_INT is >= 64 bits.
Thu Oct 8 05:05:34 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
* stmt.c (n_occurrences): New static function.
(expand_asm_operands): Verify that all constrains match in the
number of alternatives.
Verify that '+' or '=' are at the beginning of an output constraint.
Don't allow '&' for input operands.
Verify that '%' isn't written for the last operand.
* reload.c (find_reloads): Abort if an asm is found with invalid
constraints; all possible problems ought to be checked for earlier.
Thu Oct 8 04:26:20 1998 Michael Hayes <>
* flags.h (flag_branch_on_count_reg): Always declare.
* toplev.c (flag_branch_on_count_reg): Likewise.
* toplev.c: Fix typos.
* real.c (c4xtoe): Remove unused variables. Add some missing parens.
(toc4x): Similarly.
Thu Oct 8 01:25:22 1998 Richard Henderson <>
* flow.c (find_basic_blocks): Calc upper bound for extra nops in
(find_basic_blocks_1): Add a nop to the end of a basic block when
a trailing call insn does not have abnormal control flow.
* gcse.c (pre_transpout): New variable.
(alloc_pre_mem, free_pre_mem, dump_pre_data): Bookkeeping for it.
(compute_pre_transpout): Calculate it.
(compute_pre_ppinout): Use it to eliminate impossible placements
due to abnormal control flow through calls.
(compute_pre_data): Call compute_pre_transpout.
Wed Oct 7 21:40:24 1998 David S. Miller <>
* config/sparc/sol2-sld-64.h (ASM_CPU_SPEC): Fix typo.
Wed Oct 7 21:19:46 1998 Ken Raeburn <>
* config/mips/ (tablejump_internal3, tablejump_internal4
and matching define_insns): Tack on a `use' of the table label, so
flow analysis will recognize a tablejump.
Wed Oct 7 17:33:39 1998 Richard Henderson <>
* gcse.c (pre_insert_insn): Tweek to notice that calls do not
always end basic blocks for abnormal edge reasons.
Wed Oct 7 14:40:43 1998 Nick Clifton <>
* config/i386/i386.h: Remove definition of
* config/i386/go32.h: Add definition of
* config/i386/win32.h: Add definition of
* config/i386/cygwin32.h: Add definition of
* c-pragma.c (insert_pack_attributes): Do not insert
attributes unless #pragma pack(push,<n>) is in effect.
Wed Oct 7 12:10:46 1998 Jim Wilson <>
* expr.c (emit_group_store): Handle a PARALLEL destination.
Wed Oct 7 10:07:29 1998 Richard Henderson <>
* gcse.c (pre_insert_insn): When a call ends a bb, insert
the new insns before the argument regs are loaded.
Wed Oct 7 12:55:26 1998 Kaveh R. Ghazi <>
* (c-gperf.h): Add -L KR-C -F ', 0, 0' flags to gperf.
(c-parse.gperf): Update comments describing invocation flags.
(c-gperf.h): Regenerate using gperf 2.7.1 (19981006 egcs).
1998-10-07 Manfred Hollstein <>
* reload1.c (reload): Call free before clobbering the memory
locations or constants pointers.
Wed Oct 7 02:05:20 1998 David S. Miller <>
* config/sparc/sol2-sld-64.h (TRANSFER_FROM_TRAMPOLINE): Rework
for efficiency by checking whether we need to modify the current
stack permission at all.
* config/sparc/sparc.c (sparc_initialize_trampoline): Emit
__enable_execute_stack libcall here too if
* config/sparc/sparc.h: Set TARGET_ARCH32 to a constant if
Wed Oct 7 02:27:52 1998 Jeffrey A Law (
* (DRIVER_DEFINES): Remove last change.
Wed Oct 7 01:08:43 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
* jump.c (duplicate_loop_exit_test): Strip REG_WAS_0 notes off all
insns we're going to copy.
* regclass.c (reg_scan_mark_refs): Don't test X for NULL_RTX.
* loop.c (count_one_set): Add prototype.
* caller-save.c (restore_referenced_regs): Lose mode argument.
(insert_save): Lose mode argument.
(insert_restore): Lose mode argument.
(insert_one_insn): Lose mode argument.
(save_call_clobbered_regs): Lose mode argument.
(setup_save_areas): Take no argument and return void. All callers
Don't verify validity of memory addresses.
* reload.h (setup_save_ares): Adjust prototype.
(save_call_clobbered_regs): Likewise.
* reload1.c (delete_caller_save_insns): New function.
(caller_save_spill_class): Delete variable.
(caller_save_group_size): Delete variable.
(reload): Call setup_save_areas and save_call_clobbered_regs
in the main loop, before calling calculate_needs_all_insns.
Don't call save_call_clobbered_regs after the loop.
Call delete_caller_save_insns at the end of an iteration if
something changed.
Delete code to manage caller_save_spill_class.
Emit the final note before setting reload_first_uid.
Simplify test that determines whether reload_as_needed gets run.
(calculate_needs): Delete code to manage caller_save_spill_class.
Tue Oct 6 15:42:27 1998 Richard Henderson <>
* collect2.c (main): Initialize ld_file_name.
Tue Oct 6 15:45:15 1998 Catherine Moore <>
* config/sparc/sysv4.h (ASM_OUTPUT_SECTION_NAME): Don't
check for flag_function_sections.
Tue Oct 6 20:02:31 1998 J"orn Rennecke <>
* cse.c (insert_regs): Fix bug in Sep 24 change.
Tue Oct 6 17:00:42 1998 J"orn Rennecke <>
* flags.h (flag_dump_unnumbered): Declare.
* toplev.c (flag_dump_unnumbered): Don't declare.
* print-rtl.c (flags.h): Include.
(print_rtl_single): Add return value.
* rtl.h (print_rtl_single): Update declaration.
* flow.c (flag_dump_unnumbered): Don't declare.
(print_rtl_with_bb): Use return value of print_rtl_single.
Tue Oct 6 01:36:00 1998 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
* loop.c (count_one_set): New static function, broken out of
(count_loop_regs_set): Call it.
* global.c (mark_reg_store): Handle clobbers here by not calling
(mark_reg_clobber): Just call mark_reg_store after ensuring SETTER
is in fact a clobber.
* integrate.c (process_reg_param): New function, broken out of
(expand_inline_function): Call it.
* (addsidi3_1): Delete unused variable temp.
(addsidi3_2): Likewise.
(clstrstrsi): Delete unused variable addr1.
* rtl.h: Don't declare any functions also declared in recog.h.
* (stupid.o): Update dependencies.
(global.o): Likewise.
* global.c: Include reload.h.
(reg_becomes_live): New function.
(reg_dies): New function.
(build_insn_chain): New function.
(global_alloc): Call build_insn_chain before calling reload.
* reload.h (struct needs): New structure definition.
(struct insn_chain): Likewise.
(reload_insn_chain): Declare variable.
(new_insn_chain): Declare function.
* reload1.c (reload_startobj): New variable.
(reload_insn_chain): New variable.
(unused_insn_chains): New variable.
(new_insn_chain): New function.
(init_reload): Initialize reload_startobj, not reload_firstobj.
(reload): Initialize reload_firstobj.
Before returning, free everything on the reload_obstack.
* stupid.c: Include insn-config.h, reload.h and basic-block.h.
(reg_where_dead_chain, reg_where_born_exact, reg_where_born_clobber,
current_chain): New variables.
(reg_where_born): Delete variable.
(REG_WHERE_BORN): New macro.
(find_clobbered_regs): New function.
(stupid_life_analysis): Don't allocate/free reg_where_born.
Allocate and free reg_where_born_exact, reg_where_born_clobber,
Use REG_WHERE_BORN instead of reg_where_born.
While processing the insns, build the reload_insn_chain with
information about register lifetimes.
(stupid_reg_compare): Use REG_WHERE_BORN instead of reg_where_born.
(stupid_mark_refs): Replace arg INSN with arg CHAIN. All callers
Compute and information about birth and death of pseudo registers in
reg_where_dead_chain, reg_where_born_exact and reg_where_born_clobber.
Delete code to set elements of reg_where_born.
Mon Oct 5 22:34:30 1998 Alexandre Petit-Bianco <>
* tree.def (GOTO_EXPR): Modified documentation.
* expr.c (expand_expr): Expand GOTO_EXPR into a goto or a computed
Mon Oct 5 22:43:36 1998 David Edelsohn <>
* unroll.c (loop_iteration_var, loop_initial_value, loop_increment
loop_final_value, loop_comparison_code): No longer static.
(unroll_loop): Delete loop_start_value update.
* loop.h (loop_iteration_var, loop_initial_value, loop_increment,
loop_final_value, loop_comparison_code): Extern.
(loop_start_value): Delete extern.
* loop.c (loop_can_insert_bct, loop_increment, loop_start_value,
loop_comparison_value, loop_comparison_code): Delete.
(loop_optimize): Remove initialization for deleted variables.
(strength_reduce): Delete analyze_loop_iterations call. Only call
insert_bct if flag_branch_count_on_reg set.
(analyze_loop_iterations): Delete.
(insert_bct): Remove iteration count calculation. Move checks for
viable BCT optimization to here. Obtain iteration count from
loop_iterations and correct for unrolling. Check for enough
iteration to be beneficial. Comment out runtime iteration count
(insert_bct): Print iteration count in dump file. Remove
loop_var_mode and use word_mode directly.