From e0517c58489e2d09fbca5c7fb08783294e4a3e9f Mon Sep 17 00:00:00 2001
From: Yaron Keren <yaron.keren@gmail.com>
Date: Fri, 4 Sep 2015 20:24:24 +0000
Subject: [PATCH] Remove two unused includes and C++11 rangify for loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246865 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/IPO/ElimAvailExtern.cpp | 27 ++++++++++++--------------
 1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/lib/Transforms/IPO/ElimAvailExtern.cpp b/lib/Transforms/IPO/ElimAvailExtern.cpp
index 67ba72d6a36..4394bfe1bd4 100644
--- a/lib/Transforms/IPO/ElimAvailExtern.cpp
+++ b/lib/Transforms/IPO/ElimAvailExtern.cpp
@@ -15,9 +15,7 @@
 #include "llvm/Transforms/IPO.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/IR/Constants.h"
-#include "llvm/IR/Instructions.h"
 #include "llvm/IR/Module.h"
-#include "llvm/Transforms/Utils/CtorUtils.h"
 #include "llvm/Transforms/Utils/GlobalStatus.h"
 #include "llvm/Pass.h"
 using namespace llvm;
@@ -54,29 +52,28 @@ bool EliminateAvailableExternally::runOnModule(Module &M) {
   bool Changed = false;
 
   // Drop initializers of available externally global variables.
-  for (Module::global_iterator I = M.global_begin(), E = M.global_end();
-       I != E; ++I) {
-    if (!I->hasAvailableExternallyLinkage())
+  for (GlobalVariable &GV :M.globals()) {
+    if (!GV.hasAvailableExternallyLinkage())
       continue;
-    if (I->hasInitializer()) {
-      Constant *Init = I->getInitializer();
-      I->setInitializer(nullptr);
+    if (GV.hasInitializer()) {
+      Constant *Init = GV.getInitializer();
+      GV.setInitializer(nullptr);
       if (isSafeToDestroyConstant(Init))
         Init->destroyConstant();
     }
-    I->removeDeadConstantUsers();
-    I->setLinkage(GlobalValue::ExternalLinkage);
+    GV.removeDeadConstantUsers();
+    GV.setLinkage(GlobalValue::ExternalLinkage);
     NumVariables++;
   }
 
   // Drop the bodies of available externally functions.
-  for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) {
-    if (!I->hasAvailableExternallyLinkage())
+  for (Function &F : M) {
+    if (!F.hasAvailableExternallyLinkage())
       continue;
-    if (!I->isDeclaration())
+    if (!F.isDeclaration())
       // This will set the linkage to external
-      I->deleteBody();
-    I->removeDeadConstantUsers();
+      F.deleteBody();
+    F.removeDeadConstantUsers();
     NumFunctions++;
   }
 
-- 
2.34.1