From c5701910604cdf65811fabd31d41e38f1d1d4eb1 Mon Sep 17 00:00:00 2001
From: Andrew Trick <atrick@apple.com>
Date: Fri, 7 Oct 2011 23:46:21 +0000
Subject: LSR should only reuse phis that match its formula.

Fixes rdar://problem/5064068


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141442 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/LoopStrengthReduce.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'lib/Transforms')

diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 4b6c55e162..26fc03b18b 100644
--- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -3770,6 +3770,7 @@ LSRInstance::ImplementSolution(const SmallVectorImpl<const Formula *> &Solution,
 
   SCEVExpander Rewriter(SE, "lsr");
   Rewriter.disableCanonicalMode();
+  Rewriter.enableLSRMode();
   Rewriter.setIVIncInsertPos(L, IVIncInsertPos);
 
   // Expand the new value definitions and update the users.
-- 
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