gcc/testsuite/gcc.dg/torture/nested-fn-1.c

   1 /* PR middle-end/15345, c/16450 */
   2 /* Test whether unused nested functions aren't emitted into the assembly.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-g0" } */
   5 /* { dg-require-effective-target trampolines } */
   6
   7 int
   8 fn1 (int x)
   9 {
  10   int i = x;
  11   inline __attribute__((always_inline)) int
  12   should_not_appear1 (void)
  13   {
  14     return i;
  15   }
  16   return should_not_appear1 ();
  17 }
  18
  19 int
  20 fn2 (int x)
  21 {
  22   int i = x;
  23   inline __attribute__((always_inline)) int
  24   should_not_appear2 (void)
  25   {
  26     return i;
  27   }
  28   return x;
  29 }
  30
  31 extern void check (void *p);
  32
  33 int
  34 fn3 (int x)
  35 {
  36   int i = x;
  37   inline int
  38   should_appear1 (void)
  39   {
  40     char *p = __builtin_alloca (i);
  41     check (p);
  42     return i;
  43   }
  44   return should_appear1 ();
  45 }
  46
  47 int
  48 fn4 (int x)
  49 {
  50   int i = x;
  51   inline int
  52   should_not_appear3 (void)
  53   {
  54     char *p = __builtin_alloca (i);
  55     check (p);
  56     return i;
  57   }
  58   return 0 ? should_not_appear3 () : 1;
  59 }
  60
  61 int
  62 fn5 (int x)
  63 {
  64   int i = x;
  65   inline int
  66   should_appear2 (void)
  67   {
  68     return i;
  69   }
  70   check (should_appear2);
  71   return i;
  72 }
  73
  74 /* { dg-final { scan-assembler-not "should_not_appear" } } */