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[maglev] Support GapMove with double registers

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Bug: v8:7700
Change-Id: I766b523cfaf30eda9c33d9f2c580bc72a2eaa9ca
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3605815
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80203}
This commit is contained in:
Victor Gomes 2022-04-26 13:55:15 +02:00 committed by V8 LUCI CQ
parent d69ac35e4b
commit 96f7ea2541
1 changed files with 17 additions and 4 deletions
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21
src/maglev/maglev-ir.cc
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@ -606,18 +606,31 @@ void GapMove::AllocateVreg(MaglevVregAllocationState* vreg_state,
}
void GapMove::GenerateCode(MaglevCodeGenState* code_gen_state,
const ProcessingState& state) {
if (source().IsAnyRegister()) {
if (source().IsRegister()) {
Register source_reg = ToRegister(source());
if (target().IsAnyRegister()) {
DCHECK(target().IsRegister());
__ movq(ToRegister(target()), source_reg);
} else {
__ movq(code_gen_state->ToMemOperand(target()), source_reg);
}
} else {
MemOperand source_op = code_gen_state->ToMemOperand(source());
} else if (source().IsDoubleRegister()) {
DoubleRegister source_reg = ToDoubleRegister(source());
if (target().IsAnyRegister()) {
__ movq(ToRegister(target()), source_op);
DCHECK(target().IsDoubleRegister());
__ Movsd(ToDoubleRegister(target()), source_reg);
} else {
__ Movsd(code_gen_state->ToMemOperand(target()), source_reg);
}
} else {
DCHECK(source().IsAnyStackSlot());
MemOperand source_op = code_gen_state->ToMemOperand(source());
if (target().IsRegister()) {
__ movq(ToRegister(target()), source_op);
} else if (target().IsDoubleRegister()) {
__ Movsd(ToDoubleRegister(target()), source_op);
} else {
DCHECK(target().IsAnyStackSlot());
__ movq(kScratchRegister, source_op);
__ movq(code_gen_state->ToMemOperand(target()), kScratchRegister);
}