gcc/testsuite/gcc.dg/debug/20020224-1.c

   1 /* { dg-options "-g3 -O" } */
   2 /* { dg-do compile } */
   3
   4 /* Here's the deal: f4 is inlined into main, f3 is inlined into f4, f2 is
   5    inlined into f1. The DIE of main should contain DW_TAG_inlined_subroutines
   6    children for f4, f3, f2 and f1. Also, there should be a DIE representing
   7    and out of line instance of f4, aside the DIE representing its abstract
   8    instance.
   9    We used to fail to emit debugging info for t1, because it was moved
  10    inside the (inlined) block of f1, marked as abstract, then we'd crash.  */
  11
  12 #define UNUSED __attribute__((unused))
  13 #define EXT __extension__
  14
  15 int undef(void);
  16
  17 inline static void
  18 f1 (int i UNUSED)
  19 {
  20 }
  21
  22 inline static void
  23 f2 (void)
  24 {
  25   f1 (EXT ({ int t1 UNUSED; undef (); }));
  26 }
  27
  28 inline static void
  29 f3 (void)
  30 {
  31   int v1 UNUSED;
  32   int v2 UNUSED;
  33
  34   EXT ({ int t2 UNUSED; if (0) undef (); 0; })
  35     && EXT ({ int t3 UNUSED; if (0) undef (); 0; });
  36
  37   if (1)
  38     {
  39       undef ();
  40       if (1)
  41         f2 ();
  42     }
  43
  44   {
  45     undef ();
  46   }
  47 }
  48
  49 inline static void
  50 f4 (void)
  51 {
  52   EXT ({ undef (); 1; }) && EXT ({ int t4 UNUSED = ({ 1; }); 1; });
  53
  54   { }
  55
  56   EXT ({ int t5 UNUSED; if (0) undef (); 0; });
  57
  58   f4 ();
  59
  60   undef ();
  61   f3 ();
  62
  63   return;
  64 }
  65
  66 int
  67 main ()
  68 {
  69     int foo = 1;
  70     f4 ();
  71 }