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backend/x64: Temporarily avoid use of DefineValue(Argument&)

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Issues with inappropriate values in upper bits of values
This commit is contained in:
Merry 2020-06-27 10:51:10 +01:00
parent 337498823c
commit b1ff971a92
3 changed files with 33 additions and 17 deletions
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21
src/backend/x64/emit_x64_data_processing.cpp
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@ -51,7 +51,12 @@ void EmitX64::EmitPack2x64To1x128(EmitContext& ctx, IR::Inst* inst) {
void EmitX64::EmitLeastSignificantWord(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ctx.reg_alloc.DefineValue(inst, args[0]);
// TODO: DefineValue directly on Argument
const Xbyak::Reg64 result = ctx.reg_alloc.ScratchGpr();
const Xbyak::Reg64 source = ctx.reg_alloc.UseGpr(args[0]);
code.mov(result.cvt32(), source.cvt32());
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitMostSignificantWord(EmitContext& ctx, IR::Inst* inst) {
@ -73,12 +78,22 @@ void EmitX64::EmitMostSignificantWord(EmitContext& ctx, IR::Inst* inst) {
void EmitX64::EmitLeastSignificantHalf(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ctx.reg_alloc.DefineValue(inst, args[0]);
// TODO: DefineValue directly on Argument
const Xbyak::Reg64 result = ctx.reg_alloc.ScratchGpr();
const Xbyak::Reg64 source = ctx.reg_alloc.UseGpr(args[0]);
code.movzx(result.cvt32(), source.cvt16());
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitLeastSignificantByte(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ctx.reg_alloc.DefineValue(inst, args[0]);
// TODO: DefineValue directly on Argument
const Xbyak::Reg64 result = ctx.reg_alloc.ScratchGpr();
const Xbyak::Reg64 source = ctx.reg_alloc.UseGpr(args[0]);
code.movzx(result.cvt32(), source.cvt8());
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitMostSignificantBit(EmitContext& ctx, IR::Inst* inst) {