Let StructRetPromotion check if all if its users are really calls or invokesn,
not other instructions. This fixes a crash with the added testcase.
llvm-svn: 51992
diff --git a/llvm/lib/Transforms/IPO/StructRetPromotion.cpp b/llvm/lib/Transforms/IPO/StructRetPromotion.cpp
index 97a532b..94bf4c6 100644
--- a/llvm/lib/Transforms/IPO/StructRetPromotion.cpp
+++ b/llvm/lib/Transforms/IPO/StructRetPromotion.cpp
@@ -165,6 +165,10 @@
CallSite CS = CallSite::get(*FnUseI);
Instruction *Call = CS.getInstruction();
+ // The function is used by something else than a call or invoke instruction,
+ // we can't change it!
+ if (!Call)
+ return false;
CallSite::arg_iterator AI = CS.arg_begin();
Value *FirstArg = *AI;