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[x64/Linux] More return __m128i by value in xmm0 rather than pointer

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This commit is contained in:
Herman S.
2025-10-15 16:22:22 +09:00
parent 0921a4fb04
commit 7e66a85f43
2 changed files with 57 additions and 28 deletions
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19
src/xenia/cpu/backend/x64/x64_sequences.cc
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@@ -2225,9 +2225,15 @@ struct POW2_V128 : Sequence<POW2_V128, I<OPCODE_POW2, V128Op, V128Op>> {
}
static void Emit(X64Emitter& e, const EmitArgType& i) {
e.ChangeMxcsrMode(MXCSRMode::Vmx);
Xmm src1 = GetInputRegOrConstant(e, i.src1, e.xmm0);
e.lea(e.GetNativeParam(0), e.StashXmm(0, src1));
Xmm src1 = GetInputRegOrConstant(e, i.src1, e.xmm3);
#if XE_PLATFORM_WIN32
// Windows x64 ABI: __m128 is passed by implicit pointer
e.lea(e.GetNativeParam(0), e.StashXmm(0, src1));
#else
// Linux/Mac System V ABI: __m128 passed in xmm0, return in xmm0
e.vmovaps(e.xmm0, src1);
#endif
e.CallNativeSafe(reinterpret_cast<void*>(EmulatePow2));
e.vmovaps(i.dest, e.xmm0);
}
@@ -2261,10 +2267,15 @@ struct LOG2_V128 : Sequence<LOG2_V128, I<OPCODE_LOG2, V128Op, V128Op>> {
}
static void Emit(X64Emitter& e, const EmitArgType& i) {
e.ChangeMxcsrMode(MXCSRMode::Vmx);
Xmm src1 = GetInputRegOrConstant(e, i.src1, e.xmm0);
Xmm src1 = GetInputRegOrConstant(e, i.src1, e.xmm3);
#if XE_PLATFORM_WIN32
// Windows x64 ABI: __m128 is passed by implicit pointer
e.lea(e.GetNativeParam(0), e.StashXmm(0, src1));
#else
// Linux/Mac System V ABI: __m128 passed in xmm0, return in xmm0
e.vmovaps(e.xmm0, src1);
#endif
e.CallNativeSafe(reinterpret_cast<void*>(EmulateLog2));
e.vmovaps(i.dest, e.xmm0);
}