From: Dan Gohman <gohman@apple.com>
Date: Wed, 15 Dec 2010 20:39:25 +0000 (+0000)
Subject: Revert r121886. DecomposeGEPExpression needs to be kept
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3928d13808b555139728268930ecffd574430769;p=oota-llvm.git

Revert r121886. DecomposeGEPExpression needs to be kept
in sync.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121892 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp
index 75062953cba..ae253abc5d4 100644
--- a/lib/Analysis/ValueTracking.cpp
+++ b/lib/Analysis/ValueTracking.cpp
@@ -1441,14 +1441,6 @@ Value *llvm::GetUnderlyingObject(Value *V, unsigned MaxLookup) {
         return V;
       V = GA->getAliasee();
     } else {
-      // See if InstructionSimplify knows any relevant tricks.
-      if (Instruction *I = dyn_cast<Instruction>(V))
-        // TODO: Aquire TargetData and DominatorTree and use them.
-        if (Value *Simplified = SimplifyInstruction(I, 0, 0)) {
-          V = Simplified;
-          continue;
-        }
-
       return V;
     }
     assert(V->getType()->isPointerTy() && "Unexpected operand type!");