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x86jit: Small opt for Sltu.

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Unknown W. Brackets committed 2023-08-28 21:09:56 -07:00
1 parent 4e90bd5070
commit 7f3e2e55b5
1 file changed
+6 -1
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Core/MIPS/x86/X64IRCompALU.cpp
+6 -1
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@@ -182,7 +182,12 @@ void X64JitBackend::CompIR_Compare(IRInst inst) {
CONDITIONAL_DISABLE;
auto setCC = [&](const OpArg &arg, CCFlags cc) {
if (regs_.HasLowSubregister(regs_.RX(inst.dest)) && inst.dest != inst.src1 && inst.dest != inst.src2) {
// If it's carry, we can take advantage of ADC to avoid subregisters.
if (cc == CC_C && inst.dest != inst.src1 && inst.dest != inst.src2) {
XOR(32, regs_.R(inst.dest), regs_.R(inst.dest));
CMP(32, regs_.R(inst.src1), arg);
ADC(32, regs_.R(inst.dest), Imm8(0));
} else if (regs_.HasLowSubregister(regs_.RX(inst.dest)) && inst.dest != inst.src1 && inst.dest != inst.src2) {
XOR(32, regs_.R(inst.dest), regs_.R(inst.dest));
CMP(32, regs_.R(inst.src1), arg);
SETcc(cc, regs_.R(inst.dest));