[AMDGPU] Emit linkonce and linkonce_odr symbols

Differential Revision: http://reviews.llvm.org/D18726

llvm-svn: 265408
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
index 1ef9f59..0c494e3 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
@@ -134,6 +134,8 @@
 
 static bool isModuleLinkage(const GlobalValue *GV) {
   switch (GV->getLinkage()) {
+  case GlobalValue::LinkOnceODRLinkage:
+  case GlobalValue::LinkOnceAnyLinkage:
   case GlobalValue::InternalLinkage:
   case GlobalValue::CommonLinkage:
    return true;