Address comments from nocchijiang

Author: kyulee-com

llvm/lib/CodeGen/MachineStableHash.cpp

@@ -95,15 +95,16 @@ stable_hash llvm::stableHashValue(const MachineOperand &MO) {
     return 0;
   case MachineOperand::MO_GlobalAddress: {
     const GlobalValue *GV = MO.getGlobal();
-    if (!GV->hasName()) {
-      ++StableHashBailingGlobalAddress;
-      return 0;
-    }
     stable_hash GVHash = 0;
     if (auto *GVar = dyn_cast<GlobalVariable>(GV))
       GVHash = StructuralHash(*GVar);
-    if (!GVHash)
+    if (!GVHash) {
+      if (!GV->hasName()) {
+        ++StableHashBailingGlobalAddress;
+        return 0;
+      }
       GVHash = stable_hash_name(GV->getName());
+    }
 
     return stable_hash_combine(MO.getType(), MO.getTargetFlags(), GVHash,
                                MO.getOffset());