remove the too restrictive assertion

Author: Lancern

clang/lib/CIR/CodeGen/CIRGenModule.cpp

@@ -517,12 +517,16 @@ void CIRGenModule::replaceGlobal(mlir::cir::GlobalOp Old,
     auto OldSymUses = Old.getSymbolUses(theModule.getOperation());
     if (OldSymUses.has_value()) {
       for (auto Use : *OldSymUses) {
-        auto UseOp = dyn_cast<mlir::cir::GetGlobalOp>(Use.getUser());
-        assert(UseOp && "GlobalOp symbol user is not a GetGlobalOp");
-
-        auto UseOpResultValue = UseOp.getAddr();
-        UseOpResultValue.setType(
-            mlir::cir::PointerType::get(builder.getContext(), NewTy));
+        auto *UserOp = Use.getUser();
+        assert((isa<mlir::cir::GetGlobalOp>(UserOp) ||
+                isa<mlir::cir::GlobalOp>(UserOp)) &&
+               "GlobalOp symbol user is neither a GetGlobalOp nor a GlobalOp");
+
+        if (auto GGO = dyn_cast<mlir::cir::GetGlobalOp>(Use.getUser())) {
+          auto UseOpResultValue = GGO.getAddr();
+          UseOpResultValue.setType(
+              mlir::cir::PointerType::get(builder.getContext(), NewTy));
+        }
       }
     }
   }

clang/test/CIR/CodeGen/array-unknown-bound.cpp

@@ -3,9 +3,12 @@
 extern int table[];
 // CHECK: cir.global external @table = #cir.const_array<[#cir.int<1> : !s32i, #cir.int<2> : !s32i, #cir.int<3> : !s32i]> : !cir.array<!s32i x 3>
 
+int *table_ptr = table;
+// CHECK: cir.global external @table_ptr = #cir.global_view<@table> : !cir.ptr<!s32i>
+
 int test() { return table[1]; }
 //      CHECK: cir.func @_Z4testv() -> !s32i extra( {inline = #cir.inline<no>, optnone = #cir.optnone} ) {
 // CHECK-NEXT:    %0 = cir.alloca !s32i, cir.ptr <!s32i>, ["__retval"] {alignment = 4 : i64}
 // CHECK-NEXT:    %1 = cir.get_global @table : cir.ptr <!cir.array<!s32i x 3>>
 
-int table[3] {1, 2, 3};
+int table[3] {1, 2, 3};