From: Chris Lattner <sabre@nondot.org>
Date: Fri, 5 Aug 2005 01:30:11 +0000 (+0000)
Subject: Make sure to clean CastedPointers after casts are potentially deleted.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9a59fbb89606aaefb27f6fe07dcb7c188bf1b3cd;p=oota-llvm.git

Make sure to clean CastedPointers after casts are potentially deleted.
This fixes LSR crashes on 301.apsi, 191.fma3d, and 189.lucas


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22673 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 0326a143df9..19e8840320c 100644
--- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -106,7 +106,6 @@ namespace {
       for (LoopInfo::iterator I = LI->begin(), E = LI->end(); I != E; ++I)
         runOnLoop(*I);
       
-      CastedPointers.clear();
       return Changed;
     }
 
@@ -672,6 +671,7 @@ void LoopStrengthReduce::runOnLoop(Loop *L) {
     DeleteTriviallyDeadInstructions(DeadInsts);
   }
 
+  CastedPointers.clear();
   IVUsesByStride.clear();
   return;
 }