Have RemovePredecessorAndSimplify you SimplifyInstruction
rather than hasConstantValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119457 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp
index 52f0499..031bb4b 100644
--- a/lib/Transforms/Utils/Local.cpp
+++ b/lib/Transforms/Utils/Local.cpp
@@ -346,13 +346,13 @@
WeakVH PhiIt = &BB->front();
while (PHINode *PN = dyn_cast<PHINode>(PhiIt)) {
PhiIt = &*++BasicBlock::iterator(cast<Instruction>(PhiIt));
-
- Value *PNV = PN->hasConstantValue();
+
+ Value *PNV = SimplifyInstruction(PN, TD);
if (PNV == 0) continue;
-
+
// If we're able to simplify the phi to a single value, substitute the new
// value into all of its uses.
- assert(PNV != PN && "hasConstantValue broken");
+ assert(PNV != PN && "SimplifyInstruction broken!");
Value *OldPhiIt = PhiIt;
ReplaceAndSimplifyAllUses(PN, PNV, TD);