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Added a comment to document an issue with the codegen.

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This commit is contained in:
Scott Mansell 2014-09-14 16:23:38 +12:00
parent f1a4b98d36
commit 75815b9b0d
1 changed files with 5 additions and 0 deletions
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5
Source/Core/Common/x64Emitter.h
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@ -632,6 +632,11 @@ public:
void MOVHLPS(X64Reg regOp1, X64Reg regOp2);
void MOVLHPS(X64Reg regOp1, X64Reg regOp2);
// Be careful when using these overloads for reg <--> xmm moves.
// The one you cast to OpArg with R(reg) is the x86 reg, the other
// one is the xmm reg.
// ie: "MOVD_xmm(eax, R(xmm1))" generates incorrect code (movd xmm0, rcx)
// use "MOVD_xmm(R(eax), xmm1)" instead.
void MOVD_xmm(X64Reg dest, const OpArg &arg);
void MOVQ_xmm(X64Reg dest, OpArg arg);
void MOVD_xmm(const OpArg &arg, X64Reg src);