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8241503: C2: Share MacroAssembler between mach nodes during code emis…
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…sion

Reviewed-by: kvn, mdoerr, amitkumar, lucy
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@TheRealMDoerr
Cesar Soares Lucas authored and TheRealMDoerr committed Apr 11, 2024
1 parent 0656f08 commit 31ee510
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Showing 60 changed files with 1,713 additions and 2,026 deletions.
232 changes: 78 additions & 154 deletions src/hotspot/cpu/aarch64/aarch64.ad
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28 changes: 14 additions & 14 deletions src/hotspot/cpu/aarch64/aarch64_vector.ad
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Original file line number Diff line number Diff line change
Expand Up @@ -94,7 +94,7 @@ source %{
PRegister Pg, const Address &adr);

// Predicated load/store, with optional ptrue to all elements of given predicate register.
static void loadStoreA_predicated(C2_MacroAssembler masm, bool is_store, FloatRegister reg,
static void loadStoreA_predicated(C2_MacroAssembler* masm, bool is_store, FloatRegister reg,
PRegister pg, BasicType mem_elem_bt, BasicType vector_elem_bt,
int opcode, Register base, int index, int size, int disp) {
sve_mem_insn_predicate insn;
Expand All @@ -119,7 +119,7 @@ source %{
ShouldNotReachHere();
}
int imm4 = disp / mesize / Matcher::scalable_vector_reg_size(vector_elem_bt);
(masm.*insn)(reg, Assembler::elemType_to_regVariant(vector_elem_bt), pg, Address(base, imm4));
(masm->*insn)(reg, Assembler::elemType_to_regVariant(vector_elem_bt), pg, Address(base, imm4));
} else {
assert(false, "unimplemented");
ShouldNotReachHere();
Expand Down Expand Up @@ -422,7 +422,7 @@ instruct loadV(vReg dst, vmemA mem) %{
BasicType bt = Matcher::vector_element_basic_type(this);
uint length_in_bytes = Matcher::vector_length_in_bytes(this);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), /* is_store */ false,
loadStoreA_predicated(masm, /* is_store */ false,
$dst$$FloatRegister, ptrue, bt, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -439,7 +439,7 @@ instruct storeV(vReg src, vmemA mem) %{
BasicType bt = Matcher::vector_element_basic_type(this, $src);
uint length_in_bytes = Matcher::vector_length_in_bytes(this, $src);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), /* is_store */ true,
loadStoreA_predicated(masm, /* is_store */ true,
$src$$FloatRegister, ptrue, bt, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -454,7 +454,7 @@ instruct loadV_masked(vReg dst, vmemA mem, pRegGov pg) %{
format %{ "loadV_masked $dst, $pg, $mem" %}
ins_encode %{
BasicType bt = Matcher::vector_element_basic_type(this);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), /* is_store */ false, $dst$$FloatRegister,
loadStoreA_predicated(masm, /* is_store */ false, $dst$$FloatRegister,
$pg$$PRegister, bt, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -467,7 +467,7 @@ instruct storeV_masked(vReg src, vmemA mem, pRegGov pg) %{
format %{ "storeV_masked $mem, $pg, $src" %}
ins_encode %{
BasicType bt = Matcher::vector_element_basic_type(this, $src);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), /* is_store */ true, $src$$FloatRegister,
loadStoreA_predicated(masm, /* is_store */ true, $src$$FloatRegister,
$pg$$PRegister, bt, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand Down Expand Up @@ -4929,7 +4929,7 @@ instruct vloadmask_loadV(pReg dst, indirect mem, vReg tmp, rFlagsReg cr) %{
BasicType bt = Matcher::vector_element_basic_type(this);
uint length_in_bytes = Matcher::vector_length_in_bytes(this);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), false, $tmp$$FloatRegister,
loadStoreA_predicated(masm, false, $tmp$$FloatRegister,
ptrue, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
__ sve_cmp(Assembler::NE, $dst$$PRegister, __ elemType_to_regVariant(bt),
Expand All @@ -4950,7 +4950,7 @@ instruct vloadmask_loadV_masked(pReg dst, indirect mem, pRegGov pg,
// Load valid mask values which are boolean type, and extend them to the
// defined vector element type. Convert the vector to predicate.
BasicType bt = Matcher::vector_element_basic_type(this);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), false, $tmp$$FloatRegister,
loadStoreA_predicated(masm, false, $tmp$$FloatRegister,
$pg$$PRegister, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
__ sve_cmp(Assembler::NE, $dst$$PRegister, __ elemType_to_regVariant(bt),
Expand All @@ -4977,7 +4977,7 @@ instruct vloadmask_loadVMasked(pReg dst, vmemA mem, pRegGov pg, vReg tmp, rFlags
BasicType bt = Matcher::vector_element_basic_type(this);
uint length_in_bytes = Matcher::vector_length_in_bytes(this);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), false, $tmp$$FloatRegister,
loadStoreA_predicated(masm, false, $tmp$$FloatRegister,
ptrue, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
__ sve_cmp(Assembler::NE, $dst$$PRegister, __ elemType_to_regVariant(bt),
Expand Down Expand Up @@ -5005,7 +5005,7 @@ instruct vloadmask_loadVMasked_masked(pReg dst, vmemA mem, pRegGov pg1, pRegGov
BasicType bt = Matcher::vector_element_basic_type(this);
uint length_in_bytes = Matcher::vector_length_in_bytes(this);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), false, $tmp$$FloatRegister,
loadStoreA_predicated(masm, false, $tmp$$FloatRegister,
$pg2$$PRegister, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
__ sve_cmp(Assembler::NE, $dst$$PRegister, __ elemType_to_regVariant(bt),
Expand All @@ -5030,7 +5030,7 @@ instruct storeV_vstoremask(indirect mem, pReg src, immI_gt_1 esize, vReg tmp) %{
assert(type2aelembytes(bt) == (int)$esize$$constant, "unsupported type");
Assembler::SIMD_RegVariant size = __ elemBytes_to_regVariant($esize$$constant);
__ sve_cpy($tmp$$FloatRegister, size, $src$$PRegister, 1, false);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), true, $tmp$$FloatRegister,
loadStoreA_predicated(masm, true, $tmp$$FloatRegister,
ptrue, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -5052,7 +5052,7 @@ instruct storeV_vstoremask_masked(indirect mem, pReg src, immI_gt_1 esize,
Assembler::SIMD_RegVariant size = __ elemType_to_regVariant(bt);
__ sve_cpy($tmp$$FloatRegister, size, $src$$PRegister, 1, false);
__ sve_gen_mask_imm($pgtmp$$PRegister, bt, Matcher::vector_length(this, $src));
loadStoreA_predicated(C2_MacroAssembler(&cbuf), true, $tmp$$FloatRegister,
loadStoreA_predicated(masm, true, $tmp$$FloatRegister,
$pgtmp$$PRegister, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -5078,7 +5078,7 @@ instruct storeVMasked_vstoremask(vmemA mem, pReg src, pRegGov pg, immI_gt_1 esiz
assert(type2aelembytes(bt) == (int)$esize$$constant, "unsupported type.");
Assembler::SIMD_RegVariant size = __ elemBytes_to_regVariant($esize$$constant);
__ sve_cpy($tmp$$FloatRegister, size, $src$$PRegister, 1, false);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), true, $tmp$$FloatRegister,
loadStoreA_predicated(masm, true, $tmp$$FloatRegister,
ptrue, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -5105,7 +5105,7 @@ instruct storeVMasked_vstoremask_masked(vmemA mem, pReg src, pRegGov pg, immI_gt
Assembler::SIMD_RegVariant size = __ elemType_to_regVariant(bt);
__ sve_cpy($tmp$$FloatRegister, size, $src$$PRegister, 1, false);
__ sve_gen_mask_imm($pgtmp$$PRegister, bt, Matcher::vector_length(this, $src));
loadStoreA_predicated(C2_MacroAssembler(&cbuf), true, $tmp$$FloatRegister,
loadStoreA_predicated(masm, true, $tmp$$FloatRegister,
$pgtmp$$PRegister, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand Down
28 changes: 14 additions & 14 deletions src/hotspot/cpu/aarch64/aarch64_vector_ad.m4
View file
Original file line number Diff line number Diff line change
Expand Up @@ -84,7 +84,7 @@ source %{
PRegister Pg, const Address &adr);

// Predicated load/store, with optional ptrue to all elements of given predicate register.
static void loadStoreA_predicated(C2_MacroAssembler masm, bool is_store, FloatRegister reg,
static void loadStoreA_predicated(C2_MacroAssembler* masm, bool is_store, FloatRegister reg,
PRegister pg, BasicType mem_elem_bt, BasicType vector_elem_bt,
int opcode, Register base, int index, int size, int disp) {
sve_mem_insn_predicate insn;
Expand All @@ -109,7 +109,7 @@ source %{
ShouldNotReachHere();
}
int imm4 = disp / mesize / Matcher::scalable_vector_reg_size(vector_elem_bt);
(masm.*insn)(reg, Assembler::elemType_to_regVariant(vector_elem_bt), pg, Address(base, imm4));
(masm->*insn)(reg, Assembler::elemType_to_regVariant(vector_elem_bt), pg, Address(base, imm4));
} else {
assert(false, "unimplemented");
ShouldNotReachHere();
Expand Down Expand Up @@ -361,7 +361,7 @@ instruct loadV(vReg dst, vmemA mem) %{
BasicType bt = Matcher::vector_element_basic_type(this);
uint length_in_bytes = Matcher::vector_length_in_bytes(this);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), /* is_store */ false,
loadStoreA_predicated(masm, /* is_store */ false,
$dst$$FloatRegister, ptrue, bt, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -378,7 +378,7 @@ instruct storeV(vReg src, vmemA mem) %{
BasicType bt = Matcher::vector_element_basic_type(this, $src);
uint length_in_bytes = Matcher::vector_length_in_bytes(this, $src);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), /* is_store */ true,
loadStoreA_predicated(masm, /* is_store */ true,
$src$$FloatRegister, ptrue, bt, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -393,7 +393,7 @@ instruct loadV_masked(vReg dst, vmemA mem, pRegGov pg) %{
format %{ "loadV_masked $dst, $pg, $mem" %}
ins_encode %{
BasicType bt = Matcher::vector_element_basic_type(this);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), /* is_store */ false, $dst$$FloatRegister,
loadStoreA_predicated(masm, /* is_store */ false, $dst$$FloatRegister,
$pg$$PRegister, bt, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -406,7 +406,7 @@ instruct storeV_masked(vReg src, vmemA mem, pRegGov pg) %{
format %{ "storeV_masked $mem, $pg, $src" %}
ins_encode %{
BasicType bt = Matcher::vector_element_basic_type(this, $src);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), /* is_store */ true, $src$$FloatRegister,
loadStoreA_predicated(masm, /* is_store */ true, $src$$FloatRegister,
$pg$$PRegister, bt, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand Down Expand Up @@ -3321,7 +3321,7 @@ instruct vloadmask_loadV(pReg dst, indirect mem, vReg tmp, rFlagsReg cr) %{
BasicType bt = Matcher::vector_element_basic_type(this);
uint length_in_bytes = Matcher::vector_length_in_bytes(this);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), false, $tmp$$FloatRegister,
loadStoreA_predicated(masm, false, $tmp$$FloatRegister,
ptrue, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
__ sve_cmp(Assembler::NE, $dst$$PRegister, __ elemType_to_regVariant(bt),
Expand All @@ -3342,7 +3342,7 @@ instruct vloadmask_loadV_masked(pReg dst, indirect mem, pRegGov pg,
// Load valid mask values which are boolean type, and extend them to the
// defined vector element type. Convert the vector to predicate.
BasicType bt = Matcher::vector_element_basic_type(this);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), false, $tmp$$FloatRegister,
loadStoreA_predicated(masm, false, $tmp$$FloatRegister,
$pg$$PRegister, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
__ sve_cmp(Assembler::NE, $dst$$PRegister, __ elemType_to_regVariant(bt),
Expand All @@ -3369,7 +3369,7 @@ instruct vloadmask_loadVMasked(pReg dst, vmemA mem, pRegGov pg, vReg tmp, rFlags
BasicType bt = Matcher::vector_element_basic_type(this);
uint length_in_bytes = Matcher::vector_length_in_bytes(this);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), false, $tmp$$FloatRegister,
loadStoreA_predicated(masm, false, $tmp$$FloatRegister,
ptrue, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
__ sve_cmp(Assembler::NE, $dst$$PRegister, __ elemType_to_regVariant(bt),
Expand Down Expand Up @@ -3397,7 +3397,7 @@ instruct vloadmask_loadVMasked_masked(pReg dst, vmemA mem, pRegGov pg1, pRegGov
BasicType bt = Matcher::vector_element_basic_type(this);
uint length_in_bytes = Matcher::vector_length_in_bytes(this);
assert(length_in_bytes == MaxVectorSize, "invalid vector length");
loadStoreA_predicated(C2_MacroAssembler(&cbuf), false, $tmp$$FloatRegister,
loadStoreA_predicated(masm, false, $tmp$$FloatRegister,
$pg2$$PRegister, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
__ sve_cmp(Assembler::NE, $dst$$PRegister, __ elemType_to_regVariant(bt),
Expand All @@ -3422,7 +3422,7 @@ instruct storeV_vstoremask(indirect mem, pReg src, immI_gt_1 esize, vReg tmp) %{
assert(type2aelembytes(bt) == (int)$esize$$constant, "unsupported type");
Assembler::SIMD_RegVariant size = __ elemBytes_to_regVariant($esize$$constant);
__ sve_cpy($tmp$$FloatRegister, size, $src$$PRegister, 1, false);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), true, $tmp$$FloatRegister,
loadStoreA_predicated(masm, true, $tmp$$FloatRegister,
ptrue, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -3444,7 +3444,7 @@ instruct storeV_vstoremask_masked(indirect mem, pReg src, immI_gt_1 esize,
Assembler::SIMD_RegVariant size = __ elemType_to_regVariant(bt);
__ sve_cpy($tmp$$FloatRegister, size, $src$$PRegister, 1, false);
__ sve_gen_mask_imm($pgtmp$$PRegister, bt, Matcher::vector_length(this, $src));
loadStoreA_predicated(C2_MacroAssembler(&cbuf), true, $tmp$$FloatRegister,
loadStoreA_predicated(masm, true, $tmp$$FloatRegister,
$pgtmp$$PRegister, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -3470,7 +3470,7 @@ instruct storeVMasked_vstoremask(vmemA mem, pReg src, pRegGov pg, immI_gt_1 esiz
assert(type2aelembytes(bt) == (int)$esize$$constant, "unsupported type.");
Assembler::SIMD_RegVariant size = __ elemBytes_to_regVariant($esize$$constant);
__ sve_cpy($tmp$$FloatRegister, size, $src$$PRegister, 1, false);
loadStoreA_predicated(C2_MacroAssembler(&cbuf), true, $tmp$$FloatRegister,
loadStoreA_predicated(masm, true, $tmp$$FloatRegister,
ptrue, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand All @@ -3497,7 +3497,7 @@ instruct storeVMasked_vstoremask_masked(vmemA mem, pReg src, pRegGov pg, immI_gt
Assembler::SIMD_RegVariant size = __ elemType_to_regVariant(bt);
__ sve_cpy($tmp$$FloatRegister, size, $src$$PRegister, 1, false);
__ sve_gen_mask_imm($pgtmp$$PRegister, bt, Matcher::vector_length(this, $src));
loadStoreA_predicated(C2_MacroAssembler(&cbuf), true, $tmp$$FloatRegister,
loadStoreA_predicated(masm, true, $tmp$$FloatRegister,
$pgtmp$$PRegister, T_BOOLEAN, bt, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp);
%}
Expand Down
9 changes: 3 additions & 6 deletions src/hotspot/cpu/aarch64/ad_encode.m4
View file
Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ define(choose, `loadStore($1, &MacroAssembler::$3, $2, $4,
%}')dnl
define(access, `
$3Register $1_reg = as_$3Register($$1$$reg);
$4choose(C2_MacroAssembler(&cbuf), $1_reg,$2,$mem->opcode(),
$4choose(masm, $1_reg,$2,$mem->opcode(),
as_Register($mem$$base),$mem$$index,$mem$$scale,$mem$$disp,$5)')dnl
define(load,`
// This encoding class is generated automatically from ad_encode.m4.
Expand Down Expand Up @@ -59,8 +59,7 @@ define(STORE0,`
// This encoding class is generated automatically from ad_encode.m4.
// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
enc_class aarch64_enc_$2`'0(memory$4 mem) %{
C2_MacroAssembler _masm(&cbuf);
choose(_masm,zr,$2,$mem->opcode(),
choose(masm,zr,$2,$mem->opcode(),
as_$3Register($mem$$base),$mem$$index,$mem$$scale,$mem$$disp,$4)')dnl
STORE(iRegI,strb,,,1)
STORE0(iRegI,strb,,1)
Expand All @@ -72,7 +71,6 @@ STORE(iRegL,str,,
`// we sometimes get asked to store the stack pointer into the
// current thread -- we cannot do that directly on AArch64
if (src_reg == r31_sp) {
C2_MacroAssembler _masm(&cbuf);
assert(as_Register($mem$$base) == rthread, "unexpected store for sp");
__ mov(rscratch2, sp);
src_reg = rscratch2;
Expand All @@ -85,8 +83,7 @@ STORE(vRegD,strd,Float,,8)
// This encoding class is generated automatically from ad_encode.m4.
// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
enc_class aarch64_enc_strb0_ordered(memory4 mem) %{
C2_MacroAssembler _masm(&cbuf);
__ membar(Assembler::StoreStore);
loadStore(_masm, &MacroAssembler::strb, zr, $mem->opcode(),
loadStore(masm, &MacroAssembler::strb, zr, $mem->opcode(),
as_Register($mem$$base), $mem$$index, $mem$$scale, $mem$$disp, 1);
%}
14 changes: 5 additions & 9 deletions src/hotspot/cpu/aarch64/compiledIC_aarch64.cpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -34,24 +34,20 @@

// ----------------------------------------------------------------------------

#define __ _masm.
address CompiledDirectCall::emit_to_interp_stub(CodeBuffer &cbuf, address mark) {
precond(cbuf.stubs()->start() != badAddress);
precond(cbuf.stubs()->end() != badAddress);
#define __ masm->
address CompiledDirectCall::emit_to_interp_stub(MacroAssembler *masm, address mark) {
precond(__ code()->stubs()->start() != badAddress);
precond(__ code()->stubs()->end() != badAddress);

// Stub is fixed up when the corresponding call is converted from
// calling compiled code to calling interpreted code.
// mov rmethod, 0
// jmp -4 # to self

if (mark == nullptr) {
mark = cbuf.insts_mark(); // Get mark within main instrs section.
mark = __ inst_mark(); // Get mark within main instrs section.
}

// Note that the code buffer's insts_mark is always relative to insts.
// That's why we must use the macroassembler to generate a stub.
MacroAssembler _masm(&cbuf);

address base = __ start_a_stub(to_interp_stub_size());
int offset = __ offset();
if (base == nullptr) {
Expand Down
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