From: Evan Cheng <evan.cheng@apple.com>
Date: Tue, 24 May 2011 23:47:50 +0000 (+0000)
Subject: Forgot dyn_cast check.
X-Git-Tag: android-x86-6.0-r1~964^2~547
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=21d378d73563034b7ca3d8995699b886b2c68719;p=android-x86%2Fexternal-llvm.git

Forgot dyn_cast check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132025 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index 9761d682978..a33e7956433 100644
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -881,8 +881,8 @@ void LoopUnswitch::RewriteLoopBodyWithConditionConstant(Loop *L, Value *LIC,
     
     for (Value::use_iterator UI = LIC->use_begin(), E = LIC->use_end();
          UI != E; ++UI) {
-      Instruction *U = cast<Instruction>(*UI);
-      if (!L->contains(U))
+      Instruction *U = dyn_cast<Instruction>(*UI);
+      if (!U || !L->contains(U))
         continue;
       U->replaceUsesOfWith(LIC, Replacement);
       Worklist.push_back(U);
@@ -896,8 +896,8 @@ void LoopUnswitch::RewriteLoopBodyWithConditionConstant(Loop *L, Value *LIC,
   // can.  This case occurs when we unswitch switch statements.
   for (Value::use_iterator UI = LIC->use_begin(), E = LIC->use_end();
        UI != E; ++UI) {
-    Instruction *U = cast<Instruction>(*UI);
-    if (!L->contains(U))
+    Instruction *U = dyn_cast<Instruction>(*UI);
+    if (!U || !L->contains(U))
       continue;
 
     Worklist.push_back(U);