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LoongArch: Define builtin macros for ISA evolutions
Detailed description of these definitions can be found at https://github.com/loongson/la-toolchain-conventions, which the LoongArch GCC port aims to conform to. gcc/ChangeLog: * config.gcc: Add loongarch-evolution.o. * config/loongarch/genopts/genstr.sh: Enable generation of loongarch-evolution.[cc,h]. * config/loongarch/t-loongarch: Likewise. * config/loongarch/genopts/gen-evolution.awk: New file. * config/loongarch/genopts/isa-evolution.in: Mark ISA version of introduction for each ISA evolution feature. * config/loongarch/loongarch-c.cc (loongarch_cpu_cpp_builtins): Define builtin macros for enabled ISA evolutions and the ISA version. * config/loongarch/loongarch-cpu.cc: Use loongarch-evolution.h. * config/loongarch/loongarch.h: Likewise. * config/loongarch/loongarch-cpucfg-map.h: Delete. * config/loongarch/loongarch-evolution.cc: New file. * config/loongarch/loongarch-evolution.h: New file. * config/loongarch/loongarch-opts.h (ISA_HAS_FRECIPE): Define. (ISA_HAS_DIV32): Likewise. (ISA_HAS_LAM_BH): Likewise. (ISA_HAS_LAMCAS): Likewise. (ISA_HAS_LD_SEQ_SA): Likewise.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,230 @@ | ||
| #!/usr/bin/gawk | ||
| # | ||
| # A simple script that generates loongarch-evolution.h | ||
| # from genopts/isa-evolution.in | ||
| # | ||
| # Copyright (C) 2021-2024 Free Software Foundation, Inc. | ||
| # | ||
| # This file is part of GCC. | ||
| # | ||
| # GCC is free software; you can redistribute it and/or modify it under | ||
| # the terms of the GNU General Public License as published by the Free | ||
| # Software Foundation; either version 3, or (at your option) any later | ||
| # version. | ||
| # | ||
| # GCC is distributed in the hope that it will be useful, but WITHOUT | ||
| # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | ||
| # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | ||
| # License for more details. | ||
| # | ||
| # You should have received a copy of the GNU General Public License | ||
| # along with GCC; see the file COPYING3. If not see | ||
| # <http://www.gnu.org/licenses/>. | ||
|
|
||
| BEGIN { | ||
| # isa_version_major[] | ||
| # isa_version_minor[] | ||
| # cpucfg_word[] | ||
| # cpucfg_bit_in_word[] | ||
| # name_capitalized[] | ||
| # comment[] | ||
| } | ||
|
|
||
| { | ||
| cpucfg_word[NR] = $1 | ||
| cpucfg_bit_in_word[NR] = $2 | ||
| name[NR] = gensub(/-/, "_", "g", $3) | ||
| name_capitalized[NR] = toupper(name[NR]) | ||
| isa_version_major[NR] = gensub(/^([1-9][0-9]*)\.([0-9]+)$/, "\\1", 1, $4) | ||
| isa_version_minor[NR] = gensub(/^([1-9][0-9]*)\.([0-9]+)$/, "\\2", 1, $4) | ||
|
|
||
| $1 = $2 = $3 = $4 = "" | ||
| sub (/^\s*/, "") | ||
| comment[NR] = $0 | ||
| } | ||
|
|
||
| function copyright_header(from_year,to_year) | ||
| { | ||
| print " Copyright (C) " from_year "-" to_year \ | ||
| " Free Software Foundation, Inc." | ||
| print "" | ||
| print "This file is part of GCC." | ||
| print "" | ||
| print "GCC is free software; you can redistribute it and/or modify" | ||
| print "it under the terms of the GNU General Public License as published by" | ||
| print "the Free Software Foundation; either version 3, or (at your option)" | ||
| print "any later version." | ||
| print "" | ||
| print "GCC is distributed in the hope that it will be useful," | ||
| print "but WITHOUT ANY WARRANTY; without even the implied warranty of" | ||
| print "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the" | ||
| print "GNU General Public License for more details." | ||
| print "" | ||
| print "You should have received a copy of the GNU General Public License" | ||
| print "along with GCC; see the file COPYING3. If not see" | ||
| print "<http://www.gnu.org/licenses/>." | ||
| } | ||
|
|
||
| function gen_cpucfg_map() | ||
| { | ||
| print "static constexpr struct {" | ||
| print " int cpucfg_word;" | ||
| print " unsigned int cpucfg_bit;" | ||
| print " HOST_WIDE_INT isa_evolution_bit;" | ||
| print "} cpucfg_map[] = {" | ||
|
|
||
| for (i = 1; i <= NR; i++) | ||
| printf (" { %d, 1u << %d, OPTION_MASK_ISA_%s },\n", | ||
| cpucfg_word[i], cpucfg_bit_in_word[i], name_capitalized[i]) | ||
|
|
||
| print "};" | ||
| } | ||
|
|
||
| function gen_cpucfg_useful_idx() | ||
| { | ||
| split("0 1 2 16 17 18 19", init_useful_idx) | ||
|
|
||
| delete idx_bucket | ||
|
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||
| for (i in init_useful_idx) | ||
| idx_bucket[init_useful_idx[i]] = 1 | ||
| delete init_useful_idx | ||
|
|
||
| for (i in cpucfg_word) | ||
| idx_bucket[cpucfg_word[i]] = 1 | ||
|
|
||
| delete idx_list | ||
| for (i in idx_bucket) | ||
| idx_list[length(idx_list)-1] = i+0 | ||
| delete idx_bucket | ||
|
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||
| asort (idx_list) | ||
|
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||
| print "static constexpr int cpucfg_useful_idx[] = {" | ||
| for (i in idx_list) | ||
| printf(" %d,\n", idx_list[i]) | ||
| print "};" | ||
|
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||
| print "" | ||
|
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| printf ("static constexpr int N_CPUCFG_WORDS = %d;\n", | ||
| idx_list[length(idx_list)] + 1) | ||
|
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||
| delete idx_list | ||
| } | ||
|
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||
| function gen_evolution_decl() | ||
| { | ||
| print "/* ISA evolution features */" | ||
| print "enum {" | ||
|
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||
| for (i = 1; i <= NR; i++) | ||
| print " EVO_" name_capitalized[i] " = " i - 1 "," | ||
|
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||
| print " N_EVO_FEATURES = " NR | ||
| print "};" | ||
| print "" | ||
|
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||
| print "/* Condition macros */" | ||
| for (i = 1; i <= NR; i++) | ||
| printf ("#define ISA_HAS_%s \\\n" \ | ||
| " (la_target.isa.evolution & OPTION_MASK_ISA_%s)\n", | ||
| name_capitalized[i], name_capitalized[i]) | ||
| print "" | ||
|
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||
| print "/* Bitmasks on la_target.isa.evolution. */" | ||
| print "extern int la_evo_feature_masks[N_EVO_FEATURES];" | ||
| print "" | ||
| print "/* Builtin macro names for the evolution features. */" | ||
| print "extern const char* la_evo_macro_name[N_EVO_FEATURES];" | ||
| print "" | ||
| print "/* The ISA version where a specific feature is introduced. */" | ||
| print "extern int la_evo_version_major[N_EVO_FEATURES];" | ||
| print "extern int la_evo_version_minor[N_EVO_FEATURES];" | ||
| } | ||
|
|
||
| function gen_full_header() | ||
| { | ||
| print "/* Generated automatically by \"genstr\" from \"isa-evolution.in\"." | ||
| print " Please do not edit this file directly." | ||
| print "" | ||
|
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| copyright_header(2023, 2024) | ||
|
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||
| print "*/" | ||
| print "" | ||
|
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||
| print "#ifndef LOONGARCH_EVOLUTION_H" | ||
| print "#define LOONGARCH_EVOLUTION_H" | ||
| print "" | ||
| print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)" | ||
| print "" | ||
| print "#include \"options.h\"" | ||
| print "" | ||
|
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| gen_cpucfg_map() | ||
|
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| print "" | ||
|
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| gen_cpucfg_useful_idx() | ||
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| print "" | ||
|
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| gen_evolution_decl() | ||
|
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| print "" | ||
| print "#endif" | ||
| print "" | ||
| print "#endif /* LOONGARCH_EVOLUTION_H */" | ||
| } | ||
|
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||
|
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||
| function gen_full_source() | ||
| { | ||
| print "/* Generated automatically by \"genstr\" from \"isa-evolution.in\"." | ||
| print " Please do not edit this file directly." | ||
| print "" | ||
|
|
||
| copyright_header(2023, 2024) | ||
|
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||
| print "*/" | ||
| print "" | ||
| print "#include \"config.h\"" | ||
| print "#include \"system.h\"" | ||
| print "#include \"coretypes.h\"" | ||
| print "#include \"options.h\"" | ||
| print "" | ||
| print "#include \"loongarch-evolution.h\"" | ||
| print "" | ||
|
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||
| print "int la_evo_feature_masks[] = {"; | ||
| for (i = 1; i <= NR; i++) | ||
| print " OPTION_MASK_ISA_" name_capitalized[i] "," | ||
| print "};" | ||
| print "" | ||
|
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||
| print "const char* la_evo_macro_name[] = {"; | ||
| for (i = 1; i <= NR; i++) | ||
| print " \"__loongarch_" name[i] "\"," | ||
| print "};" | ||
| print "" | ||
|
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||
|
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||
| print "int la_evo_version_major[] = {" | ||
| for (i = 1; i <= NR; i++) | ||
| print " " isa_version_major[i] ", /* " name_capitalized[i] " */" | ||
| print "};" | ||
| print "" | ||
|
|
||
| print "int la_evo_version_minor[] = {" | ||
| for (i = 1; i <= NR; i++) | ||
| print " " isa_version_minor[i] ", /* " name_capitalized[i] " */" | ||
| print "};" | ||
| } | ||
|
|
||
| END { | ||
| if (header_p) | ||
| gen_full_header() | ||
| else | ||
| gen_full_source() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,5 @@ | ||
| 2 25 frecipe Support frecipe.{s/d} and frsqrte.{s/d} instructions. | ||
| 2 26 div32 Support div.w[u] and mod.w[u] instructions with inputs not sign-extended. | ||
| 2 27 lam-bh Support am{swap/add}[_db].{b/h} instructions. | ||
| 2 28 lamcas Support amcas[_db].{b/h/w/d} instructions. | ||
| 3 23 ld-seq-sa Do not need load-load barriers (dbar 0x700). | ||
| 2 25 frecipe 1.1 Support frecipe.{s/d} and frsqrte.{s/d} instructions. | ||
| 2 26 div32 1.1 Support div.w[u] and mod.w[u] instructions with inputs not sign-extended. | ||
| 2 27 lam-bh 1.1 Support am{swap/add}[_db].{b/h} instructions. | ||
| 2 28 lamcas 1.1 Support amcas[_db].{b/h/w/d} instructions. | ||
| 3 23 ld-seq-sa 1.1 Do not need load-load barriers (dbar 0x700). |
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