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Const src1 permute.

This commit is contained in:
Ben Vanik 2014-06-08 22:21:38 -07:00
parent 43a3b4f3c0
commit 052dca5010
1 changed files with 6 additions and 1 deletions
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7
src/alloy/backend/x64/x64_sequences.cc
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@ -4497,7 +4497,12 @@ EMITTER(PERMUTE_V128, MATCH(I<OPCODE_PERMUTE, V128<>, V128<>, V128<>, V128<>>))
e.vpxor(i.dest, i.dest);
} else {
// Control mask needs to be shuffled.
e.vpshufb(e.xmm0, i.src1, e.GetXmmConstPtr(XMMByteSwapMask));
if (i.src1.is_constant) {
e.LoadConstantXmm(e.xmm0, i.src1.constant());
e.vpshufb(e.xmm0, e.xmm0, e.GetXmmConstPtr(XMMByteSwapMask));
} else {
e.vpshufb(e.xmm0, i.src1, e.GetXmmConstPtr(XMMByteSwapMask));
}
if (i.src2.is_constant) {
e.LoadConstantXmm(i.dest, i.src2.constant());
e.vpshufb(i.dest, i.dest, e.xmm0);