From ab44ce3d598882e51a25eb82eb7ae6308de85ae6 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Mon, 29 May 2017 16:25:25 +0000
Subject: Vendor import of llvm trunk r304149:
 https://llvm.org/svn/llvm-project/llvm/trunk@304149

---
 lib/Transforms/Utils/SimplifyLibCalls.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'lib/Transforms/Utils/SimplifyLibCalls.cpp')

diff --git a/lib/Transforms/Utils/SimplifyLibCalls.cpp b/lib/Transforms/Utils/SimplifyLibCalls.cpp
index 85c9464b5569..49effda5d833 100644
--- a/lib/Transforms/Utils/SimplifyLibCalls.cpp
+++ b/lib/Transforms/Utils/SimplifyLibCalls.cpp
@@ -466,9 +466,7 @@ Value *LibCallSimplifier::optimizeStringLength(CallInst *CI, IRBuilder<> &B,
       }
 
       Value *Offset = GEP->getOperand(2);
-      unsigned BitWidth = Offset->getType()->getIntegerBitWidth();
-      KnownBits Known(BitWidth);
-      computeKnownBits(Offset, Known, DL, 0, nullptr, CI, nullptr);
+      KnownBits Known = computeKnownBits(Offset, DL, 0, nullptr, CI, nullptr);
       Known.Zero.flipAllBits();
       uint64_t ArrSize =
              cast<ArrayType>(GEP->getSourceElementType())->getNumElements();
-- 
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