Disable bogus cast elimination when the cast is used by a setcc instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17583 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPC32ISelSimple.cpp b/lib/Target/PowerPC/PPC32ISelSimple.cpp
index 5314dad..1dd946a 100644
--- a/lib/Target/PowerPC/PPC32ISelSimple.cpp
+++ b/lib/Target/PowerPC/PPC32ISelSimple.cpp
@@ -3163,15 +3163,15 @@
// emit them, as the store instruction will implicitly not store the zero or
// sign extended bytes.
if (SrcClass <= cInt && SrcClass >= DestClass) {
- bool AllUsesAreStoresOrSetCC = true;
+ bool AllUsesAreStores = true;
for (Value::use_iterator I = CI.use_begin(), E = CI.use_end(); I != E; ++I)
- if (!isa<StoreInst>(*I) && !isa<SetCondInst>(*I)) {
- AllUsesAreStoresOrSetCC = false;
+ if (!isa<StoreInst>(*I)) {
+ AllUsesAreStores = false;
break;
}
// Turn this cast directly into a move instruction, which the register
// allocator will deal with.
- if (AllUsesAreStoresOrSetCC) {
+ if (AllUsesAreStores) {
unsigned SrcReg = getReg(Op, BB, MI);
BuildMI(*BB, MI, PPC::OR, 2, DestReg).addReg(SrcReg).addReg(SrcReg);
return;