From 18f153bdb9db52e7089a2d5293b96c45a3124a26 Mon Sep 17 00:00:00 2001
From: Ed Schouten <ed@FreeBSD.org>
Date: Sat, 4 Jul 2009 13:58:26 +0000
Subject: Import LLVM 74788.

---
 lib/Analysis/ValueTracking.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'lib/Analysis/ValueTracking.cpp')

diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp
index 7509e91bdc85..07a18fe4de42 100644
--- a/lib/Analysis/ValueTracking.cpp
+++ b/lib/Analysis/ValueTracking.cpp
@@ -249,7 +249,10 @@ void llvm::ComputeMaskedBits(Value *V, const APInt &Mask,
   }
   case Instruction::BitCast: {
     const Type *SrcTy = I->getOperand(0)->getType();
-    if (SrcTy->isInteger() || isa<PointerType>(SrcTy)) {
+    if ((SrcTy->isInteger() || isa<PointerType>(SrcTy)) &&
+        // TODO: For now, not handling conversions like:
+        // (bitcast i64 %x to <2 x i32>)
+        !isa<VectorType>(I->getType())) {
       ComputeMaskedBits(I->getOperand(0), Mask, KnownZero, KnownOne, TD,
                         Depth+1);
       return;
-- 
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