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emit_x64_vector: AVX512 implementation of EmitVectorNot

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Single in-place ternary logic instruction.
This commit is contained in:
Wunkolo 2021-06-04 19:26:36 -07:00 committed by merry
parent 0c12614d1a
commit e47d0d11c3
1 changed files with 8 additions and 2 deletions
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10
src/dynarmic/backend/x64/emit_x64_vector.cpp
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@ -2137,12 +2137,18 @@ void EmitX64::EmitVectorNarrow64(EmitContext& ctx, IR::Inst* inst) {
void EmitX64::EmitVectorNot(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
if (code.HasHostFeature(HostFeature::AVX512_Ortho)) {
const Xbyak::Xmm result = ctx.reg_alloc.ScratchXmm();
const Xbyak::Xmm operand = ctx.reg_alloc.UseXmm(args[0]);
code.vpternlogq(result, operand, operand, u8(~Tern::c));
ctx.reg_alloc.DefineValue(inst, result);
return;
}
const Xbyak::Xmm xmm_a = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm xmm_b = ctx.reg_alloc.ScratchXmm();
code.pcmpeqw(xmm_b, xmm_b);
code.pxor(xmm_a, xmm_b);
ctx.reg_alloc.DefineValue(inst, xmm_a);
}