// Save the floating point and SIMD registers, and try to clobber
// xmm0.
+ lea DX, [SP + 160]
fxsave [SP]
- mov eax, [SP + 160]
- xor dword ptr [SP + 160], 0xaaaa5555
+ mov eax, [DX]
+ xor dword ptr [DX], 0xaaaa5555
fxrstor [SP]
// Save them again, and read back the low word of xmm0. Undo the
// clobbering and restore.
fxsave [SP]
- mov ecx, [SP + 160]
- mov [SP + 160], eax
+ mov ecx, [DX]
+ mov [DX], eax
fxrstor [SP]
// The register are live if we read different things.