Let StructRetPromotion check if it's users are really calling it and not
passing its pointer. Fixes test with added testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51991 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/StructRetPromotion.cpp b/lib/Transforms/IPO/StructRetPromotion.cpp
index 174a6fa..97a532b 100644
--- a/lib/Transforms/IPO/StructRetPromotion.cpp
+++ b/lib/Transforms/IPO/StructRetPromotion.cpp
@@ -158,6 +158,10 @@
for (Value::use_iterator FnUseI = F->use_begin(), FnUseE = F->use_end();
FnUseI != FnUseE; ++FnUseI) {
+ // The function is passed in as an argument to (possibly) another function,
+ // we can't change it!
+ if (FnUseI.getOperandNo() != 0)
+ return false;
CallSite CS = CallSite::get(*FnUseI);
Instruction *Call = CS.getInstruction();