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s390x: [liftoff] implement Construct

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Change-Id: I21ece3823aa98a4bd662ad774aac3e44f3ae024f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2736515
Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73198}
This commit is contained in:
Junliang Yan 2021-03-04 11:31:54 -05:00 committed by Commit Bot
parent bc123a1fcc
commit cde4dcf374
1 changed files with 92 additions and 1 deletions
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93
src/wasm/baseline/s390/liftoff-assembler-s390.h
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@ -2856,7 +2856,98 @@ void LiftoffAssembler::DeallocateStackSlot(uint32_t size) {
}
void LiftoffStackSlots::Construct() {
asm_->bailout(kUnsupportedArchitecture, "LiftoffStackSlots::Construct");
for (auto& slot : slots_) {
const LiftoffAssembler::VarState& src = slot.src_;
switch (src.loc()) {
case LiftoffAssembler::VarState::kStack: {
switch (src.kind()) {
case kI32:
case kRef:
case kOptRef:
case kRtt:
case kRttWithDepth:
case kI64: {
UseScratchRegisterScope temps(asm_);
Register scratch = temps.Acquire();
asm_->LoadU64(scratch, liftoff::GetStackSlot(slot.src_offset_));
asm_->Push(scratch);
break;
}
case kF32: {
asm_->LoadF32(kScratchDoubleReg,
liftoff::GetStackSlot(slot.src_offset_));
asm_->lay(sp, MemOperand(sp, -kSystemPointerSize));
asm_->StoreF32(kScratchDoubleReg, MemOperand(sp));
break;
}
case kF64: {
asm_->LoadF64(kScratchDoubleReg,
liftoff::GetStackSlot(slot.src_offset_));
asm_->push(kScratchDoubleReg);
break;
}
case kS128: {
UseScratchRegisterScope temps(asm_);
Register scratch = temps.Acquire();
asm_->LoadV128(kScratchDoubleReg,
liftoff::GetStackSlot(slot.src_offset_), scratch);
asm_->lay(sp, MemOperand(sp, -kSimd128Size));
asm_->StoreV128(kScratchDoubleReg, MemOperand(sp), scratch);
break;
}
default:
UNREACHABLE();
}
break;
}
case LiftoffAssembler::VarState::kRegister:
switch (src.kind()) {
case kI64:
case kI32:
case kRef:
case kOptRef:
case kRtt:
case kRttWithDepth:
asm_->push(src.reg().gp());
break;
case kF32:
asm_->lay(sp, MemOperand(sp, -kSystemPointerSize));
asm_->StoreF32(src.reg().fp(), MemOperand(sp));
break;
case kF64:
asm_->push(src.reg().fp());
break;
case kS128: {
UseScratchRegisterScope temps(asm_);
Register scratch = temps.Acquire();
asm_->lay(sp, MemOperand(sp, -kSimd128Size));
asm_->StoreV128(src.reg().fp(), MemOperand(sp), scratch);
break;
}
default:
UNREACHABLE();
}
break;
case LiftoffAssembler::VarState::kIntConst: {
DCHECK(src.kind() == kI32 || src.kind() == kI64);
UseScratchRegisterScope temps(asm_);
Register scratch = temps.Acquire();
switch (src.kind()) {
case kI32:
asm_->mov(scratch, Operand(src.i32_const()));
break;
case kI64:
asm_->mov(scratch, Operand(int64_t{slot.src_.i32_const()}));
break;
default:
UNREACHABLE();
}
asm_->push(scratch);
break;
}
}
}
}
} // namespace wasm