From 8c160548ce58c87242335b041f80e1b97f974823 Mon Sep 17 00:00:00 2001
From: Duncan Sands <baldrick@free.fr>
Date: Wed, 8 Feb 2012 14:10:53 +0000
Subject: [PATCH] Use Use::set rather than finding the operand number of the
 use and setting that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150074 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/GVN.cpp | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index 654125342a4..5b95f5b86fb 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -1900,12 +1900,9 @@ unsigned GVN::replaceAllDominatedUsesWith(Value *From, Value *To,
   unsigned Count = 0;
   for (Value::use_iterator UI = From->use_begin(), UE = From->use_end();
        UI != UE; ) {
-    Instruction *User = cast<Instruction>(*UI);
-    unsigned OpNum = UI.getOperandNo();
-    ++UI;
-
-    if (DT->dominates(Root, User->getParent())) {
-      User->setOperand(OpNum, To);
+    Use &U = (UI++).getUse();
+    if (DT->dominates(Root, cast<Instruction>(U.getUser())->getParent())) {
+      U.set(To);
       ++Count;
     }
   }
-- 
2.34.1