1  /* { dg-do compile } */
       2  /* { dg-require-alias "" } */
       3  /* { dg-options "-O2" } */
       4  
       5  #define LABEL3(pfx, x) # pfx x
       6  #define LABEL2(pfx, x) LABEL3(pfx, x)
       7  #define LABEL(x) LABEL2(__USER_LABEL_PREFIX__, x)
       8  
       9  int yum;
      10  void dessert (void) { ++yum; }
      11  extern void jelly (void) __asm__ (LABEL ("jelly2")) __attribute__ ((alias ("dessert"), weak));
      12  extern void wobbly (void) __attribute__ ((alias ("jelly2"), weak));
      13  
      14  /* { dg-final { scan-assembler "wobbly" } } */
      15  /* { dg-final { scan-assembler "jelly2" } } */