Vendor import of llvm trunk r161861:

http://llvm.org/svn/llvm-project/llvm/trunk@161861

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/Transforms/IPO/GlobalDCE.cpp b/lib/Transforms/IPO/GlobalDCE.cpp
index 2b427aa..18c1c7b 100644
--- a/lib/Transforms/IPO/GlobalDCE.cpp
+++ b/lib/Transforms/IPO/GlobalDCE.cpp
@@ -65,7 +65,7 @@ bool GlobalDCE::runOnModule(Module &M) {
   for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) {
     Changed |= RemoveUnusedGlobalValue(*I);
     // Functions with external linkage are needed if they have a body
-    if (!I->hasLocalLinkage() && !I->hasLinkOnceLinkage() &&
+    if (!I->isDiscardableIfUnused() &&
         !I->isDeclaration() && !I->hasAvailableExternallyLinkage())
       GlobalIsNeeded(I);
   }
@@ -75,7 +75,7 @@ bool GlobalDCE::runOnModule(Module &M) {
     Changed |= RemoveUnusedGlobalValue(*I);
     // Externally visible & appending globals are needed, if they have an
     // initializer.
-    if (!I->hasLocalLinkage() && !I->hasLinkOnceLinkage() &&
+    if (!I->isDiscardableIfUnused() &&
         !I->isDeclaration() && !I->hasAvailableExternallyLinkage())
       GlobalIsNeeded(I);
   }
@@ -84,7 +84,7 @@ bool GlobalDCE::runOnModule(Module &M) {
        I != E; ++I) {
     Changed |= RemoveUnusedGlobalValue(*I);
     // Externally visible aliases are needed.
-    if (!I->hasLocalLinkage() && !I->hasLinkOnceLinkage())
+    if (!I->isDiscardableIfUnused())
       GlobalIsNeeded(I);
   }