clang-tests/gcc-4_2-testsuite/src/gcc.dg/debug/dwarf2/const-1.c

/* { dg-do compile } */
/* { dg-options "-O -gdwarf-2 -dA" } */
/* { dg-final { scan-assembler "DW_AT_const_value" } } */

extern void x();
static void (*f)() = x;