Lower the select instruction when the operands are of vector type.
Select of vectors is implemented by appropriately masking and
combining the inputs with sign extend / bitwise operations
and without the use of branches.
BUG=none
R=jvoung@chromium.org, stichnot@chromium.org
Review URL: https://codereview.chromium.org/417653004
diff --git a/src/IceTargetLoweringX8632.h b/src/IceTargetLoweringX8632.h
index 864881f..cbc98ce 100644
--- a/src/IceTargetLoweringX8632.h
+++ b/src/IceTargetLoweringX8632.h
@@ -304,6 +304,9 @@
void _pand(Variable *Dest, Operand *Src0) {
Context.insert(InstX8632Pand::create(Func, Dest, Src0));
}
+ void _pandn(Variable *Dest, Operand *Src0) {
+ Context.insert(InstX8632Pandn::create(Func, Dest, Src0));
+ }
void _pcmpeq(Variable *Dest, Operand *Src0) {
Context.insert(InstX8632Pcmpeq::create(Func, Dest, Src0));
}
