diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/InstructionCombining.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InstructionCombining.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index 85d580b8ce5..773441f5383 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp @@ -2088,11 +2088,13 @@ static Constant *GetGEPGlobalInitializer(Constant *C, ConstantExpr *CE) { // addressing... for (unsigned i = 2, e = CE->getNumOperands(); i != e; ++i) if (ConstantUInt *CU = dyn_cast<ConstantUInt>(CE->getOperand(i))) { - ConstantStruct *CS = cast<ConstantStruct>(C); + ConstantStruct *CS = dyn_cast<ConstantStruct>(C); + if (CS == 0) return 0; if (CU->getValue() >= CS->getValues().size()) return 0; C = cast<Constant>(CS->getValues()[CU->getValue()]); } else if (ConstantSInt *CS = dyn_cast<ConstantSInt>(CE->getOperand(i))) { - ConstantArray *CA = cast<ConstantArray>(C); + ConstantArray *CA = dyn_cast<ConstantArray>(C); + if (CA == 0) return 0; if ((uint64_t)CS->getValue() >= CA->getValues().size()) return 0; C = cast<Constant>(CA->getValues()[CS->getValue()]); } else |
