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Merge pull request #5141 from MerryMage/ConvertDoubleToSingle

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EmuCodeBlock: Place ConvertDoubleToSingle temporaries on the stack
This commit is contained in:
Markus Wick 2017-03-25 17:37:29 +01:00 committed by GitHub
commit 3898707ef9
1 changed files with 7 additions and 7 deletions
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14
Source/Core/Core/PowerPC/Jit64Common/EmuCodeBlock.cpp
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@ -855,9 +855,6 @@ void EmuCodeBlock::Force25BitPrecision(X64Reg output, const OpArg& input, X64Reg
} }
} }
alignas(16) static u32 temp32;
alignas(16) static u64 temp64;
// Since the following float conversion functions are used in non-arithmetic PPC float instructions, // Since the following float conversion functions are used in non-arithmetic PPC float instructions,
// they must convert floats bitexact and never flush denormals to zero or turn SNaNs into QNaNs. // they must convert floats bitexact and never flush denormals to zero or turn SNaNs into QNaNs.
// This means we can't use CVTSS2SD/CVTSD2SS :( // This means we can't use CVTSS2SD/CVTSD2SS :(
@ -986,10 +983,13 @@ void EmuCodeBlock::ConvertDoubleToSingle(X64Reg dst, X64Reg src)
FixupBranch continue2 = J(true); FixupBranch continue2 = J(true);
SetJumpTarget(denormalConversion); SetJumpTarget(denormalConversion);
MOVSD(M(&temp64), src); // We're using 8 bytes on the stack
FLD(64, M(&temp64)); SUB(64, R(RSP), Imm8(8));
FSTP(32, M(&temp32)); MOVSD(MatR(RSP), src);
MOVSS(dst, M(&temp32)); FLD(64, MatR(RSP));
FSTP(32, MatR(RSP));
MOVSS(dst, MatR(RSP));
ADD(64, R(RSP), Imm8(8));
FixupBranch continue3 = J(true); FixupBranch continue3 = J(true);
SwitchToNearCode(); SwitchToNearCode();