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s390x: [liftoff] implement Load function

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Change-Id: I42ff5501bec10ef5230ea06d5feb9adc5be0d875
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2633731
Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72157}
This commit is contained in:
Junliang Yan 2021-01-18 12:50:05 -05:00 committed by Commit Bot
parent 2c1d99e584
commit 8e93a32d3c
1 changed files with 44 additions and 1 deletions
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45
src/wasm/baseline/s390/liftoff-assembler-s390.h
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@ -240,7 +240,50 @@ void LiftoffAssembler::Load(LiftoffRegister dst, Register src_addr,
Register offset_reg, uintptr_t offset_imm,
LoadType type, LiftoffRegList pinned,
uint32_t* protected_load_pc, bool is_load_mem) {
bailout(kUnsupportedArchitecture, "Load");
UseScratchRegisterScope temps(this);
CHECK(is_int20(offset_imm));
MemOperand src_op =
MemOperand(src_addr, offset_reg == no_reg ? r0 : offset_reg, offset_imm);
if (protected_load_pc) *protected_load_pc = pc_offset();
switch (type.value()) {
case LoadType::kI32Load8U:
case LoadType::kI64Load8U:
LoadU8(dst.gp(), src_op);
break;
case LoadType::kI32Load8S:
case LoadType::kI64Load8S:
LoadS8(dst.gp(), src_op);
break;
case LoadType::kI32Load16U:
case LoadType::kI64Load16U:
LoadU16LE(dst.gp(), src_op);
break;
case LoadType::kI32Load16S:
case LoadType::kI64Load16S:
LoadS16LE(dst.gp(), src_op);
break;
case LoadType::kI64Load32U:
LoadU32LE(dst.gp(), src_op);
break;
case LoadType::kI32Load:
case LoadType::kI64Load32S:
LoadS32LE(dst.gp(), src_op);
break;
case LoadType::kI64Load:
LoadU64LE(dst.gp(), src_op);
break;
case LoadType::kF32Load:
LoadF32LE(dst.fp(), src_op, r0);
break;
case LoadType::kF64Load:
LoadF64LE(dst.fp(), src_op, r0);
break;
case LoadType::kS128Load:
LoadV128LE(dst.fp(), src_op, r0, r1);
break;
default:
UNREACHABLE();
}
}
void LiftoffAssembler::Store(Register dst_addr, Register offset_reg,