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Merge pull request #192 from DrChat/permute_alt 

PERMUTE_I32 Non-AVX2 Instructions
This commit is contained in:
Rick Gibbed 2015-05-05 12:19:53 -05:00
parent 539365def2 c3f1e74814
commit c2b0b7ec23
1 changed files with 26 additions and 11 deletions
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31
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 =
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) {
@ -5590,12 +5601,16 @@ EMITTER(PERMUTE_I32, MATCH(I<OPCODE_PERMUTE, V128<>, I32<>, V128<>, V128<>>)) {
if (i.dest != src3) {
e.vpshufd(i.dest, src2, src_control);
e.vpshufd(e.xmm0, src3, src_control);
e.vpblendd(i.dest, e.xmm0, blend_control); // $0 = $1 <blend> $2
} else {
e.vmovaps(e.xmm0, src3);
e.vpshufd(i.dest, src2, src_control);
e.vpshufd(e.xmm0, e.xmm0, src_control);
e.vpblendd(i.dest, e.xmm0, blend_control);
}
if (e.cpu()->has(Xbyak::util::Cpu::tAVX2)) {
e.vpblendd(i.dest, e.xmm0, blend_control); // $0 = $1 <blend> $2
} else {
e.vpblendw(i.dest, e.xmm0, blend_control); // $0 = $1 <blend> $2
}
} else {
// Permute by non-constant.