[llvm] r176775 - Remove a source of nondeterminism from the LoopVectorizer.

[Benjamin Kramer]

Author: d0k
Date: Sat Mar  9 13:22:40 2013
New Revision: 176775

URL: http://llvm.org/viewvc/llvm-project?rev=176775&view=rev
Log:
Remove a source of nondeterminism from the LoopVectorizer.

This made us emit runtime checks in a random order. Hopefully bootstrap
miscompares will go away now.

Modified:
    llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp

Modified: llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp?rev=176775&r1=176774&r2=176775&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp (original)
+++ llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp Sat Mar  9 13:22:40 2013
@@ -419,7 +419,7 @@ public:
 
   /// Alias(Multi)Map stores the values (GEPs or underlying objects and their
   /// respective Store/Load instruction(s) to calculate aliasing.
-  typedef DenseMap<Value*, Instruction* > AliasMap;
+  typedef MapVector<Value*, Instruction* > AliasMap;
   typedef DenseMap<Value*, std::vector<Instruction*> > AliasMultiMap;
 
   /// Returns true if it is legal to vectorize this loop.