diff options
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/IndVarSimplify.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp index 3e944d3857..b1cde4177b 100644 --- a/lib/Transforms/Scalar/IndVarSimplify.cpp +++ b/lib/Transforms/Scalar/IndVarSimplify.cpp @@ -806,6 +806,7 @@ bool IndVarSimplify::runOnLoop(Loop *L, LPPassManager &LPM) { // (RHS doesn't have to be constant. There should be a better approach // than bottom-up pattern matching for this...) if (UInst && UInst->getOpcode()==Instruction::And && + !UInst->use_empty() && allUsesAreSameTyped(Instruction::ZExt, UInst) && isa<ConstantInt>(UInst->getOperand(1))) { uint64_t newBitSize = LargestType->getPrimitiveSizeInBits(); |