[llvm] r304040 - [lib/LTO] Don't reinvent the code for switching linkage.

[Davide Italiano via llvm-commits]

Author: davide
Date: Fri May 26 16:56:14 2017
New Revision: 304040

URL: http://llvm.org/viewvc/llvm-project?rev=304040&view=rev
Log:
[lib/LTO] Don't reinvent the code for switching linkage.

Differential Revision:  https://reviews.llvm.org/D33582

Modified:
    llvm/trunk/lib/LTO/LTO.cpp

Modified: llvm/trunk/lib/LTO/LTO.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/LTO/LTO.cpp?rev=304040&r1=304039&r2=304040&view=diff
==============================================================================
--- llvm/trunk/lib/LTO/LTO.cpp (original)
+++ llvm/trunk/lib/LTO/LTO.cpp Fri May 26 16:56:14 2017
@@ -542,16 +542,10 @@ Error LTO::addRegularLTO(BitcodeModule B
         if (Sym.isUndefined())
           continue;
         Keep.push_back(GV);
-        switch (GV->getLinkage()) {
-        default:
-          break;
-        case GlobalValue::LinkOnceAnyLinkage:
-          GV->setLinkage(GlobalValue::WeakAnyLinkage);
-          break;
-        case GlobalValue::LinkOnceODRLinkage:
-          GV->setLinkage(GlobalValue::WeakODRLinkage);
-          break;
-        }
+        GlobalValue::LinkageTypes OriginalLinkage = GV->getLinkage();
+        if (GlobalValue::isLinkOnceLinkage(OriginalLinkage))
+          GV->setLinkage(GlobalValue::getWeakLinkage(
+              GlobalValue::isLinkOnceODRLinkage(OriginalLinkage)));
       } else if (isa<GlobalObject>(GV) &&
                  (GV->hasLinkOnceODRLinkage() || GV->hasWeakODRLinkage() ||
                   GV->hasAvailableExternallyLinkage()) &&