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PERMUTE_I32 Alternative instructions

This commit is contained in:
Dr. Chat 2015-05-05 12:00:40 -05:00
parent 539365def2
commit c1f9952cbd
1 changed files with 20 additions and 9 deletions
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29
src/xenia/cpu/backend/x64/x64_sequences.cc
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@ -3793,9 +3793,6 @@ EMITTER(MUL_ADD_F32, MATCH(I<OPCODE_MUL_ADD, F32<>, F32<>, F32<>, F32<>>)) {
}
}
} else {
// TODO(justin): Test this
//e.DebugBreak();
// If i.dest == i.src3, back up i.src3 so we don't overwrite it.
if (i.dest == i.src3) {
e.vmovss(e.xmm0, i.src3);
@ -5490,8 +5487,8 @@ EMITTER(SPLAT_I16, MATCH(I<OPCODE_SPLAT, V128<>, I16<>>)) {
e.vpbroadcastw(i.dest, e.xmm0);
}
} else {
// TODO(justin)
e.DebugBreak();
// TODO
//e.DebugBreak();
}
}
};
@ -5567,11 +5564,25 @@ EMITTER(PERMUTE_I32, MATCH(I<OPCODE_PERMUTE, V128<>, I32<>, V128<>, V128<>>)) {
(((control >> 16) & 0x3) << 4) |
(((control >> 8) & 0x3) << 2) |
(((control >> 0) & 0x3) << 0);
uint32_t blend_control =
(((control >> 26) & 0x1) << 3) |
(((control >> 18) & 0x1) << 2) |
(((control >> 10) & 0x1) << 1) |
uint32_t blend_control = 0;
if (e.cpu()->has(Xbyak::util::Cpu::tAVX2)) {
// Blender for vpblendd
blend_control =
(((control >> 26) & 0x1) << 3) |
(((control >> 18) & 0x1) << 2) |
(((control >> 10) & 0x1) << 1) |
(((control >> 2) & 0x1) << 0);
} else {
// Blender for pblendw
blend_control =
(((control >> 26) & 0x1) << 6) |
(((control >> 18) & 0x1) << 4) |
(((control >> 10) & 0x1) << 2) |
(((control >> 2) & 0x1) << 0);
blend_control |= blend_control << 1;
}
// TODO(benvanik): if src2/src3 are constants, shuffle now!
Xmm src2;
if (i.src2.is_constant) {