[polly] r249267 - Use AssertingVH for ValueToValue Maps

[Tobias Grosser via llvm-commits]

Author: grosser
Date: Sun Oct  4 05:18:49 2015
New Revision: 249267

URL: http://llvm.org/viewvc/llvm-project?rev=249267&view=rev
Log:
Use AssertingVH for ValueToValue Maps

By using AssertingVH we will see assertions in case Values to which still
pointers in our maps exists are deleted. This is very useful as we previously
had some bugs that were caused by such stale Value pointers.

Modified:
    polly/trunk/include/polly/CodeGen/BlockGenerators.h

Modified: polly/trunk/include/polly/CodeGen/BlockGenerators.h
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/include/polly/CodeGen/BlockGenerators.h?rev=249267&r1=249266&r2=249267&view=diff
==============================================================================
--- polly/trunk/include/polly/CodeGen/BlockGenerators.h (original)
+++ polly/trunk/include/polly/CodeGen/BlockGenerators.h Sun Oct  4 05:18:49 2015
@@ -67,7 +67,8 @@ public:
   /// @see The ScalarMap and PHIOpMap member.
   using ScalarAllocaMapTy = DenseMap<AssertingVH<Value>, AssertingVH<Value>>;
 
-  typedef llvm::DenseMap<llvm::Value *, llvm::Value *> ValueMapT;
+  typedef llvm::DenseMap<AssertingVH<llvm::Value>, AssertingVH<llvm::Value>>
+      ValueMapT;
   typedef llvm::SmallVector<ValueMapT, 8> VectorValueMapT;
 
   /// @brief Simple vector of instructions to store escape users.