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Fixing vsel.

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This commit is contained in:
Ben Vanik
2014-09-01 13:00:00 -07:00
parent d30483bf53
commit 080a0f8026
3 changed files with 29 additions and 5 deletions
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29
src/alloy/backend/x64/x64_sequences.cc
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@@ -1913,7 +1913,7 @@ EMITTER(SELECT_F64, MATCH(I<OPCODE_SELECT, F64<>, I8<>, F64<>, F64<>>)) {
e.vpor(i.dest, e.xmm1);
}
};
EMITTER(SELECT_V128, MATCH(I<OPCODE_SELECT, V128<>, I8<>, V128<>, V128<>>)) {
EMITTER(SELECT_V128_I8, MATCH(I<OPCODE_SELECT, V128<>, I8<>, V128<>, V128<>>)) {
static void Emit(X64Emitter& e, const EmitArgType& i) {
// TODO(benvanik): find a shorter sequence.
// xmm0 = src1 != 0 ? 1111... : 0000....
@@ -1927,6 +1927,30 @@ EMITTER(SELECT_V128, MATCH(I<OPCODE_SELECT, V128<>, I8<>, V128<>, V128<>>)) {
e.vpor(i.dest, e.xmm1);
}
};
EMITTER(SELECT_V128_V128, MATCH(I<OPCODE_SELECT, V128<>, V128<>, V128<>, V128<>>)) {
static void Emit(X64Emitter& e, const EmitArgType& i) {
// TODO(benvanik): could be made shorter when consts involved.
if (i.src2.is_constant) {
if (i.src2.value->IsConstantZero()) {
e.vpxor(e.xmm1, e.xmm1);
} else {
assert_always();
}
} else {
e.vpandn(e.xmm1, i.src1, i.src2);
}
if (i.src3.is_constant) {
if (i.src3.value->IsConstantZero()) {
e.vpxor(i.dest, i.dest);
} else {
assert_always();
}
} else {
e.vpand(i.dest, i.src1, i.src3);
}
e.vpor(i.dest, e.xmm1);
}
};
EMITTER_OPCODE_TABLE(
OPCODE_SELECT,
SELECT_I8,
@@ -1935,7 +1959,8 @@ EMITTER_OPCODE_TABLE(
SELECT_I64,
SELECT_F32,
SELECT_F64,
SELECT_V128);
SELECT_V128_I8,
SELECT_V128_V128);
// ============================================================================