[PowerPC] fix up in sign-/zero-extension elimination
This patch fixes a potential problem in my previous commit (https://reviews.llvm.org/rL315888) by adding a null check.
llvm-svn: 315900
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
index 9da20d9..b4da2d6 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -2256,6 +2256,8 @@
if (CallMI.isCall() && CallMI.getOperand(0).isGlobal()) {
const Function *CalleeFn =
dyn_cast<Function>(CallMI.getOperand(0).getGlobal());
+ if (!CalleeFn)
+ return false;
const IntegerType *IntTy =
dyn_cast<IntegerType>(CalleeFn->getReturnType());
const AttributeSet &Attrs =