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JitArm64: rlwimix - Conditionally skip temp reg allocation

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This commit is contained in:
Bram Speeckaert 2024-05-04 17:38:04 +02:00
parent f7c97ae654
commit b63808a652
1 changed files with 8 additions and 4 deletions
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12
Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp
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@ -2106,15 +2106,19 @@ void JitArm64::rlwimix(UGeckoInstruction inst)
else else
{ {
gpr.BindToRegister(a, true); gpr.BindToRegister(a, true);
const bool allocate_reg = a == s;
ARM64Reg RA = gpr.R(a);
ARM64Reg WA = gpr.GetReg(); ARM64Reg WA = gpr.GetReg();
ARM64Reg WB = gpr.GetReg(); ARM64Reg WB = allocate_reg ? gpr.GetReg() : RA;
MOVI2R(WA, mask); MOVI2R(WA, mask);
BIC(WB, gpr.R(a), WA); BIC(WB, RA, WA);
AND(WA, WA, gpr.R(s), ArithOption(gpr.R(s), ShiftType::ROR, rot_dist)); AND(WA, WA, gpr.R(s), ArithOption(gpr.R(s), ShiftType::ROR, rot_dist));
ORR(gpr.R(a), WB, WA); ORR(RA, WB, WA);
gpr.Unlock(WA, WB); gpr.Unlock(WA);
if (allocate_reg)
gpr.Unlock(WB);
} }
if (inst.Rc) if (inst.Rc)