From: Kostya Serebryany <kcc@google.com>
Date: Fri, 15 Nov 2013 09:52:05 +0000 (+0000)
Subject: [asan] use GlobalValue::PrivateLinkage for coverage guard to save quite a bit of... 
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=8f15c6822251bbe7eb21732c46aa6d9f30ba8836;p=oota-llvm.git

[asan] use GlobalValue::PrivateLinkage for coverage guard to save quite a bit of code size

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194800 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index 77e9e0ea13d..d8c3f8eafb7 100644
--- a/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -1187,7 +1187,7 @@ bool AddressSanitizer::InjectCoverage(Function &F) {
   IRBuilder<> IRB(F.getEntryBlock().getFirstInsertionPt());
   Type *Int8Ty = IRB.getInt8Ty();
   GlobalVariable *Guard = new GlobalVariable(
-      *F.getParent(), Int8Ty, false, F.getLinkage(),
+      *F.getParent(), Int8Ty, false, GlobalValue::PrivateLinkage,
       Constant::getNullValue(Int8Ty), "__asan_gen_cov_" + F.getName());
   LoadInst *Load = IRB.CreateLoad(Guard);
   Load->setAtomic(Monotonic);