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JitArm64: Handle rlwinmx with zero mask

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No games seem to use this, so this isn't useful as a performance
optimization, but it's required for correctness because the (sh == 0)
case of our implementation doesn't handle zero masks.
This commit is contained in:
JosJuice 2024-12-25 15:15:24 +01:00
parent c528a70e64
commit 6384ea97f1
1 changed files with 8 additions and 0 deletions
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8
Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp
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@ -765,6 +765,14 @@ void JitArm64::rlwinmx_internal(UGeckoInstruction inst, u32 sh)
return; return;
} }
if (mask == 0)
{
gpr.SetImmediate(a, 0);
if (inst.Rc)
ComputeRC0(0);
return;
}
gpr.BindToRegister(a, a == s); gpr.BindToRegister(a, a == s);
if (sh == 0 && mask == 0xFFFFFFFF) if (sh == 0 && mask == 0xFFFFFFFF)