Initial check in

Bug: 137197907
diff --git a/src/llvm-project/llvm/lib/Target/AMDGPU/AMDGPUMachineModuleInfo.cpp b/src/llvm-project/llvm/lib/Target/AMDGPU/AMDGPUMachineModuleInfo.cpp
new file mode 100644
index 0000000..7b9f673
--- /dev/null
+++ b/src/llvm-project/llvm/lib/Target/AMDGPU/AMDGPUMachineModuleInfo.cpp
@@ -0,0 +1,29 @@
+//===--- AMDGPUMachineModuleInfo.cpp ----------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+/// \file
+/// AMDGPU Machine Module Info.
+///
+//
+//===----------------------------------------------------------------------===//
+
+#include "AMDGPUMachineModuleInfo.h"
+#include "llvm/IR/Module.h"
+
+namespace llvm {
+
+AMDGPUMachineModuleInfo::AMDGPUMachineModuleInfo(const MachineModuleInfo &MMI)
+    : MachineModuleInfoELF(MMI) {
+  LLVMContext &CTX = MMI.getModule()->getContext();
+  AgentSSID = CTX.getOrInsertSyncScopeID("agent");
+  WorkgroupSSID = CTX.getOrInsertSyncScopeID("workgroup");
+  WavefrontSSID = CTX.getOrInsertSyncScopeID("wavefront");
+}
+
+} // end namespace llvm