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Support src1 and src2 being a constant in OPCODE_EXTRACT.

This commit is contained in:
gibbed 2015-06-14 02:08:12 -05:00
parent 3870dabcee
commit c949c1d303
1 changed files with 11 additions and 3 deletions
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14
src/xenia/cpu/backend/x64/x64_sequences.cc
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@ -5519,10 +5519,18 @@ EMITTER(EXTRACT_I32, MATCH(I<OPCODE_EXTRACT, I32<>, V128<>, I8<>>)) {
vec128b(15, 14, 13, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),
};
if (i.src2.is_constant) {
if (i.src2.constant() == 0) {
e.vmovd(i.dest, i.src1);
// TODO(gibbed): add support to constant propagation pass for OPCODE_EXTRACT.
Xmm src1;
if (i.src1.is_constant) {
src1 = e.xmm0;
e.LoadConstantXmm(src1, i.src1.constant());
} else {
e.vpextrd(i.dest, i.src1, VEC128_D(i.src2.constant()));
src1 = i.src1;
}
if (i.src2.constant() == 0) {
e.vmovd(i.dest, src1);
} else {
e.vpextrd(i.dest, src1, VEC128_D(i.src2.constant()));
}
} else {
// TODO(benvanik): try out hlide's version: