Minimal patch to fix PR992/PR993

llvm-svn: 31608
diff --git a/llvm/lib/Transforms/IPO/Inliner.cpp b/llvm/lib/Transforms/IPO/Inliner.cpp
index edb34be..b7c4ce1 100644
--- a/llvm/lib/Transforms/IPO/Inliner.cpp
+++ b/llvm/lib/Transforms/IPO/Inliner.cpp
@@ -132,8 +132,7 @@
           // Attempt to inline the function...
           if (InlineCallIfPossible(CS, CG, SCCFunctions)) {
             // Remove this call site from the list.
-            std::swap(CallSites[CSi], CallSites.back());
-            CallSites.pop_back();
+            CallSites.erase(CallSites.begin()+CSi);
             --CSi;
 
             ++NumInlined;