From 913a779df29cb4c8fc7943917371bb141b04c3a7 Mon Sep 17 00:00:00 2001
From: Philip Reames <listmail@philipreames.com>
Date: Thu, 10 May 2018 00:05:29 +0000
Subject: [PATCH] [Inscombine] fix a signedness warning which broke -Werror
 builds

llvm-svn: 331944
---
 llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
index 80b1957a7e21..c0c6a0db1c90 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
@@ -3635,7 +3635,7 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) {
     // fixed window of instructions to handle common cases with conditions
     // computed between guards.
     Instruction *NextInst = II->getNextNode();
-    for (int i = 0; i < GuardWideningWindow; i++) {
+    for (unsigned i = 0; i < GuardWideningWindow; i++) {
       // Note: Using context-free form to avoid compile time blow up
       if (!isSafeToSpeculativelyExecute(NextInst))
         break;