From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Sat, 9 Mar 2013 19:22:40 +0000 (+0000)
Subject: Remove a source of nondeterminism from the LoopVectorizer.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0d932717d8d22b0e747b15fddea2c718043e4d51;p=oota-llvm.git

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176775 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Vectorize/LoopVectorize.cpp b/lib/Transforms/Vectorize/LoopVectorize.cpp
index 3da0f5d2104..07dd4534249 100644
--- a/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -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.