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emit_x64_vector: Simplify VectorShuffleImpl

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This commit is contained in:
MerryMage 2018-07-24 22:44:55 +01:00
parent ecbf9dbae5
commit 43407c4bb4
1 changed files with 6 additions and 18 deletions
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24
src/backend_x64/emit_x64_vector.cpp
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@ -2053,40 +2053,28 @@ void EmitX64::EmitVectorRoundingHalvingAddU32(EmitContext& ctx, IR::Inst* inst)
EmitVectorRoundingHalvingAddUnsigned(32, ctx, inst, code);
}
enum class ShuffleType {
LowHalfwords,
HighHalfwords,
Words
};
static void VectorShuffleImpl(ShuffleType type, EmitContext& ctx, IR::Inst* inst, BlockOfCode& code) {
static void VectorShuffleImpl(BlockOfCode& code, EmitContext& ctx, IR::Inst* inst, void (Xbyak::CodeGenerator::*fn)(const Xbyak::Mmx&, const Xbyak::Operand&, u8)) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm operand = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm operand = ctx.reg_alloc.UseXmm(args[0]);
const Xbyak::Xmm result = ctx.reg_alloc.ScratchXmm();
const u8 mask = args[1].GetImmediateU8();
if (type == ShuffleType::LowHalfwords) {
code.pshuflw(result, operand, mask);
} else if (type == ShuffleType::HighHalfwords) {
code.pshufhw(result, operand, mask);
} else {
code.pshufd(result, operand, mask);
}
(code.*fn)(result, operand, mask);
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitVectorShuffleHighHalfwords(EmitContext& ctx, IR::Inst* inst) {
VectorShuffleImpl(ShuffleType::HighHalfwords, ctx, inst, code);
VectorShuffleImpl(code, ctx, inst, &Xbyak::CodeGenerator::pshufhw);
}
void EmitX64::EmitVectorShuffleLowHalfwords(EmitContext& ctx, IR::Inst* inst) {
VectorShuffleImpl(ShuffleType::LowHalfwords, ctx, inst, code);
VectorShuffleImpl(code, ctx, inst, &Xbyak::CodeGenerator::pshuflw);
}
void EmitX64::EmitVectorShuffleWords(EmitContext& ctx, IR::Inst* inst) {
VectorShuffleImpl(ShuffleType::Words, ctx, inst, code);
VectorShuffleImpl(code, ctx, inst, &Xbyak::CodeGenerator::pshufd);
}
void EmitX64::EmitVectorSignExtend8(EmitContext& ctx, IR::Inst* inst) {