In addition to deleting calls, the inliner can constant fold them as well.
Handle this case, which doesn't require a new callgraph edge. This fixes
a crash compiling MallocBench/gs.
llvm-svn: 29121
diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index 277b10a..eeb6911 100644
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -158,8 +158,10 @@
std::map<const Value*, Value*>::iterator VMI = ValueMap.find(OrigCall);
if (VMI != ValueMap.end()) { // Only copy the edge if the call was inlined!
- Instruction *NewCall = cast<Instruction>(VMI->second);
- CallerNode->addCalledFunction(CallSite::get(NewCall), I->second);
+ // If the call was inlined, but then constant folded, there is no edge to
+ // add. Check for this case.
+ if (Instruction *NewCall = dyn_cast<Instruction>(VMI->second))
+ CallerNode->addCalledFunction(CallSite::get(NewCall), I->second);
}
}
}