Clear CachedFunctionInfo upon Pass::releaseMemory. Because ValueMap will abort

on RAUW of functions, this is a correctness issue instead of a mere memory
usage problem.


No testcase until the new MergeFunctions can land.

llvm-svn: 103653

1 files changed, 3 insertions, 0 deletions

diff --git a/llvm/include/llvm/Analysis/InlineCost.h b/llvm/include/llvm/Analysis/InlineCost.h
index d51dd6cbd6f..cac7cfe2455 100644
--- a/llvm/include/llvm/Analysis/InlineCost.h
+++ b/llvm/include/llvm/Analysis/InlineCost.h
@@ -198,6 +198,9 @@ namespace llvm {
     /// has been inlined. If Callee is NULL it means a dead call has been
     /// eliminated.
     void growCachedCostInfo(Function* Caller, Function* Callee);
+
+    /// clear - empty the cache of inline costs
+    void clear();
   };
 
   /// callIsSmall - If a call is likely to lower to a single target instruction,