Fix the PPC JIT failures last night, which were due to mishandling of linkonce globals


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25141 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCCodeEmitter.cpp b/lib/Target/PowerPC/PPCCodeEmitter.cpp
index 95f84eb..bda49a8 100644
--- a/lib/Target/PowerPC/PPCCodeEmitter.cpp
+++ b/lib/Target/PowerPC/PPCCodeEmitter.cpp
@@ -194,6 +194,7 @@
   } else if (MO.isGlobalAddress() || MO.isExternalSymbol()) {
     bool isExternal = MO.isExternalSymbol() ||
                       MO.getGlobal()->hasWeakLinkage() ||
+                      MO.getGlobal()->hasLinkOnceLinkage() ||
                       MO.getGlobal()->isExternal();
     unsigned Reloc = 0;
     if (MI.getOpcode() == PPC::BL)