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Fixing permute, I think.

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This commit is contained in:
Ben Vanik
2014-10-25 15:23:27 -07:00
parent 07a7f36871
commit e767c2e90a
9 changed files with 67 additions and 5 deletions
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2
src/alloy/backend/x64/x64_emitter.cc
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@@ -835,6 +835,8 @@ Address X64Emitter::GetXmmConstPtr(XmmConst id) {
0x0000001Fu, 0x0000001Fu),
/* XMMShiftByteMask */ vec128i(0x000000FFu, 0x000000FFu,
0x000000FFu, 0x000000FFu),
/* XMMSwapWordMask */ vec128i(0x03030303u, 0x03030303u,
0x03030303u, 0x03030303u),
/* XMMUnsignedDwordMax */ vec128i(0xFFFFFFFFu, 0x00000000u,
0xFFFFFFFFu, 0x00000000u),
/* XMM255 */ vec128f(255.0f),

1
src/alloy/backend/x64/x64_emitter.h
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@@ -67,6 +67,7 @@ enum XmmConst {
XMMShiftMaskEvenPI16,
XMMShiftMaskPS,
XMMShiftByteMask,
XMMSwapWordMask,
XMMUnsignedDwordMax,
XMM255,
XMMPI32,

8
src/alloy/backend/x64/x64_sequences.cc
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@@ -4999,9 +4999,9 @@ EMITTER(PERMUTE_V128, MATCH(I<OPCODE_PERMUTE, V128<>, V128<>, V128<>, V128<>>))
// Control mask needs to be shuffled.
if (i.src1.is_constant) {
e.LoadConstantXmm(e.xmm0, i.src1.constant());
e.vpshufb(e.xmm0, e.xmm0, e.GetXmmConstPtr(XMMByteSwapMask));
e.vxorps(e.xmm0, e.xmm0, e.GetXmmConstPtr(XMMSwapWordMask));
} else {
e.vpshufb(e.xmm0, i.src1, e.GetXmmConstPtr(XMMByteSwapMask));
e.vxorps(e.xmm0, i.src1, e.GetXmmConstPtr(XMMSwapWordMask));
}
if (i.src2.is_constant) {
e.LoadConstantXmm(i.dest, i.src2.constant());
@@ -5018,9 +5018,9 @@ EMITTER(PERMUTE_V128, MATCH(I<OPCODE_PERMUTE, V128<>, V128<>, V128<>, V128<>>))
// Control mask needs to be shuffled.
if (i.src1.is_constant) {
e.LoadConstantXmm(e.xmm2, i.src1.constant());
e.vpshufb(e.xmm2, e.xmm2, e.GetXmmConstPtr(XMMByteSwapMask));
e.vxorps(e.xmm2, e.xmm2, e.GetXmmConstPtr(XMMSwapWordMask));
} else {
e.vpshufb(e.xmm2, i.src1, e.GetXmmConstPtr(XMMByteSwapMask));
e.vxorps(e.xmm2, i.src1, e.GetXmmConstPtr(XMMSwapWordMask));
}
Xmm src2_shuf = e.xmm0;
if (i.src2.value->IsConstantZero()) {