llvm-project/clang/test/CodeGen/debug-info-static.c

// RUN: %clang_cc1  -debug-info-kind=limited -emit-llvm -o - %s | FileCheck %s

// CHECK: @f.xyzzy = internal global i32 0, align 4, !dbg [[XYZZY:![0-9]+]]

// CHECK: [[XYZZY]] = distinct !DIGlobalVariable
void f(void)
{
   static int xyzzy;
   xyzzy += 3;
}