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vperm test + fix for % byte.

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This commit is contained in:
Ben Vanik
2015-01-11 15:17:16 -08:00
parent 229daab25b
commit d234f2bc47
7 changed files with 75 additions and 0 deletions
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1
src/alloy/backend/x64/x64_emitter.cc
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@@ -810,6 +810,7 @@ Address X64Emitter::GetXmmConstPtr(XmmConst id) {
/* XMMByteOrderMask */ vec128i(0x01000302u, 0x05040706u,
0x09080B0Au, 0x0D0C0F0Eu),
/* XMMPermuteControl15 */ vec128b(15),
/* XMMPermuteByteMask */ vec128b(0x1F),
/* XMMPackD3DCOLORSat */ vec128i(0x404000FFu),
/* XMMPackD3DCOLOR */ vec128i(0xFFFFFFFFu, 0xFFFFFFFFu,
0xFFFFFFFFu, 0x0C000408u),

1
src/alloy/backend/x64/x64_emitter.h
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@@ -57,6 +57,7 @@ enum XmmConst {
XMMByteSwapMask,
XMMByteOrderMask,
XMMPermuteControl15,
XMMPermuteByteMask,
XMMPackD3DCOLORSat,
XMMPackD3DCOLOR,
XMMUnpackD3DCOLOR,

4
src/alloy/backend/x64/x64_sequences.cc
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@@ -5007,6 +5007,7 @@ EMITTER(PERMUTE_I32, MATCH(I<OPCODE_PERMUTE, V128<>, I32<>, V128<>, V128<>>)) {
};
EMITTER(PERMUTE_V128, MATCH(I<OPCODE_PERMUTE, V128<>, V128<>, V128<>, V128<>>)) {
static void Emit(X64Emitter& e, const EmitArgType& i) {
assert_true(i.instr->flags == INT8_TYPE);
// TODO(benvanik): find out how to do this with only one temp register!
// Permute bytes between src2 and src3.
if (i.src3.value->IsConstantZero()) {
@@ -5022,6 +5023,7 @@ EMITTER(PERMUTE_V128, MATCH(I<OPCODE_PERMUTE, V128<>, V128<>, V128<>, V128<>>))
} else {
e.vxorps(e.xmm0, i.src1, e.GetXmmConstPtr(XMMSwapWordMask));
}
e.vpand(e.xmm0, e.GetXmmConstPtr(XMMPermuteByteMask));
if (i.src2.is_constant) {
e.LoadConstantXmm(i.dest, i.src2.constant());
e.vpshufb(i.dest, i.dest, e.xmm0);
@@ -5035,12 +5037,14 @@ EMITTER(PERMUTE_V128, MATCH(I<OPCODE_PERMUTE, V128<>, V128<>, V128<>, V128<>>))
} else {
// General permute.
// Control mask needs to be shuffled.
// TODO(benvanik): do constants here instead of in generated code.
if (i.src1.is_constant) {
e.LoadConstantXmm(e.xmm2, i.src1.constant());
e.vxorps(e.xmm2, e.xmm2, e.GetXmmConstPtr(XMMSwapWordMask));
} else {
e.vxorps(e.xmm2, i.src1, e.GetXmmConstPtr(XMMSwapWordMask));
}
e.vpand(e.xmm2, e.GetXmmConstPtr(XMMPermuteByteMask));
Xmm src2_shuf = e.xmm0;
if (i.src2.value->IsConstantZero()) {
e.vpxor(src2_shuf, src2_shuf);