From: Saleem Abdulrasool <compnerd@compnerd.org>
Date: Sat, 20 Dec 2014 21:37:51 +0000 (+0000)
Subject: CodeGen: constify and use range loop for SSP
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=281f5687205d2a1e94d2dd9c8585a1afb669327e;p=oota-llvm.git

CodeGen: constify and use range loop for SSP

Use range-based for loop and constify the iterators.  NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224683 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/StackProtector.cpp b/lib/CodeGen/StackProtector.cpp
index 58e4ad971e8..3385f0695fe 100644
--- a/lib/CodeGen/StackProtector.cpp
+++ b/lib/CodeGen/StackProtector.cpp
@@ -212,20 +212,16 @@ bool StackProtector::RequiresStackProtector() {
                                             Attribute::StackProtect))
     return false;
 
-  for (Function::iterator I = F->begin(), E = F->end(); I != E; ++I) {
-    BasicBlock *BB = I;
-
-    for (BasicBlock::iterator II = BB->begin(), IE = BB->end(); II != IE;
-         ++II) {
-      if (AllocaInst *AI = dyn_cast<AllocaInst>(II)) {
+  for (const BasicBlock &BB : *F) {
+    for (const Instruction &I : BB) {
+      if (const AllocaInst *AI = dyn_cast<AllocaInst>(&I)) {
         if (AI->isArrayAllocation()) {
           // SSP-Strong: Enable protectors for any call to alloca, regardless
           // of size.
           if (Strong)
             return true;
 
-          if (const ConstantInt *CI =
-                  dyn_cast<ConstantInt>(AI->getArraySize())) {
+          if (const auto *CI = dyn_cast<ConstantInt>(AI->getArraySize())) {
             if (CI->getLimitedValue(SSPBufferSize) >= SSPBufferSize) {
               // A call to alloca with size >= SSPBufferSize requires
               // stack protectors.