diff options
| author | Chris Lattner <sabre@nondot.org> | 2010-12-19 23:24:04 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-12-19 23:24:04 +0000 |
| commit | f2a97ed13d8aa23fab6d141b3c633e6ae513233e (patch) | |
| tree | 13f8aba9b51c3de94d543e8acdf7eff167fca6c7 /lib/Transforms/InstCombine/InstructionCombining.cpp | |
| parent | 48461f6da3cd1d2e3497805821cb7c8969a20e4b (diff) | |
fix an oversight caught by Frits!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122204 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/InstCombine/InstructionCombining.cpp')
| -rw-r--r-- | lib/Transforms/InstCombine/InstructionCombining.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/Transforms/InstCombine/InstructionCombining.cpp b/lib/Transforms/InstCombine/InstructionCombining.cpp index 5fa930e754..c679ef4efa 100644 --- a/lib/Transforms/InstCombine/InstructionCombining.cpp +++ b/lib/Transforms/InstCombine/InstructionCombining.cpp @@ -1151,9 +1151,10 @@ Instruction *InstCombiner::visitExtractValueInst(ExtractValueInst &EV) { // If the normal result of the add is dead, and the RHS is a constant, // we can transform this into a range comparison. // overflow = uadd a, -4 --> overflow = icmp ugt a, 3 - if (ConstantInt *CI = dyn_cast<ConstantInt>(II->getArgOperand(1))) - return new ICmpInst(ICmpInst::ICMP_UGT, II->getArgOperand(0), - ConstantExpr::getNot(CI)); + if (II->getIntrinsicID() == Intrinsic::uadd_with_overflow) + if (ConstantInt *CI = dyn_cast<ConstantInt>(II->getArgOperand(1))) + return new ICmpInst(ICmpInst::ICMP_UGT, II->getArgOperand(0), + ConstantExpr::getNot(CI)); break; case Intrinsic::usub_with_overflow: case Intrinsic::ssub_with_overflow: |