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IR: Implement VectorLogicalShiftLeft{8,16,32,64}

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This commit is contained in:
MerryMage
2018-02-10 09:31:50 +00:00
parent 15e8231f24
commit f6247125c0
4 changed files with 338 additions and 267 deletions
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47
src/backend_x64/emit_x64_vector.cpp
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@@ -587,6 +587,53 @@ void EmitX64::EmitVectorPairedAdd64(EmitContext& ctx, IR::Inst* inst) {
ctx.reg_alloc.DefineValue(inst, a);
}
void EmitX64::EmitVectorLogicalShiftLeft8(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm result = ctx.reg_alloc.UseScratchXmm(args[0]);
const u8 shift_amount = args[1].GetImmediateU8();
// TODO: Optimize
for (size_t i = 0; i < shift_amount; ++i) {
code.paddb(result, result);
}
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitVectorLogicalShiftLeft16(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm result = ctx.reg_alloc.UseScratchXmm(args[0]);
const u8 shift_amount = args[1].GetImmediateU8();
code.psllw(result, shift_amount);
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitVectorLogicalShiftLeft32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm result = ctx.reg_alloc.UseScratchXmm(args[0]);
const u8 shift_amount = args[1].GetImmediateU8();
code.pslld(result, shift_amount);
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitVectorLogicalShiftLeft64(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Xmm result = ctx.reg_alloc.UseScratchXmm(args[0]);
const u8 shift_amount = args[1].GetImmediateU8();
code.psllq(result, shift_amount);
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitVectorZeroUpper(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);