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Some more constant support for MUL_SUB.

This commit is contained in:
Ben Vanik 2015-07-29 21:45:24 -07:00
parent d8be8fdbbb
commit a9b89a790b
1 changed files with 19 additions and 4 deletions
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23
src/xenia/cpu/backend/x64/x64_sequences.cc
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@ -4515,15 +4515,30 @@ struct MUL_SUB_V128
// FMA extension
if (e.IsFeatureEnabled(kX64EmitFMA)) {
if (i.dest == i.src1) {
e.vfmsub213ps(i.dest, i.src2, i.src3);
if (i.src3.is_constant) {
e.LoadConstantXmm(e.xmm0, i.src3.constant());
e.vfmsub213ps(i.dest, i.src2, e.xmm0);
} else {
e.vfmsub213ps(i.dest, i.src2, i.src3);
}
} else if (i.dest == i.src2) {
e.vfmsub213ps(i.dest, i.src1, i.src3);
if (i.src3.is_constant) {
e.LoadConstantXmm(e.xmm0, i.src3.constant());
e.vfmsub213ps(i.dest, i.src1, e.xmm0);
} else {
e.vfmsub213ps(i.dest, i.src1, i.src3);
}
} else if (i.dest == i.src3) {
e.vfmsub231ps(i.dest, i.src1, i.src2);
} else {
// Dest not equal to anything
// Dest not equal to anything.
e.vmovdqa(i.dest, i.src1);
e.vfmsub213ps(i.dest, i.src2, i.src3);
if (i.src3.is_constant) {
e.LoadConstantXmm(e.xmm0, i.src3.constant());
e.vfmsub213ps(i.dest, i.src2, e.xmm0);
} else {
e.vfmsub213ps(i.dest, i.src2, i.src3);
}
}
} else {
Xmm src3;