Rename isWeakForLinker to mayBeOverridden.  Use it
instead of hasWeakLinkage in a bunch of optimization
passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56782 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/AddReadAttrs.cpp b/lib/Transforms/IPO/AddReadAttrs.cpp
index 897548b..3e7d860 100644
--- a/lib/Transforms/IPO/AddReadAttrs.cpp
+++ b/lib/Transforms/IPO/AddReadAttrs.cpp
@@ -63,7 +63,7 @@
 
     // Definitions with weak linkage may be overridden at linktime with
     // something that writes memory, so treat them like declarations.
-    if (F->isDeclaration() || F->hasWeakLinkage()) {
+    if (F->isDeclaration() || F->mayBeOverridden()) {
       if (!F->onlyReadsMemory())
         // May write memory.
         return false;