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

Differential Revision: https://reviews.llvm.org/D33582 llvm-svn: 304040
llvm · May 26, 2017 · d4db116 · d4db116
1 parent e8b0919
commit d4db116
Showing 1 changed file with 4 additions and 10 deletions.
diff --git a/llvm/lib/LTO/LTO.cpp b/llvm/lib/LTO/LTO.cpp
@@ -542,16 +542,10 @@ Error LTO::addRegularLTO(BitcodeModule BM,
         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()) &&