gcc/testsuite/gcc.dg/ipa/remref-2b.c

   1 /* Verify that indirect inlining can also remove references of the functions it
   2    discovers calls for, even when nodes being inlined are virtual IPA-CP
   3    clones.  */
   4 /* { dg-do compile } */
   5 /* { dg-options "-O3 -fno-early-inlining -fdump-ipa-cp-details -fdump-ipa-inline -fdump-tree-optimized -fno-ipa-icf"  } */
   6
   7
   8 int global;
   9
  10 void __attribute__ ((noinline, noclone, used))
  11 stuff (int i)
  12 {
  13   global = i;
  14 }
  15
  16 int __attribute__ ((noinline,noclone)) get_input(void)
  17 {
  18   return 1;
  19 }
  20
  21 static void
  22 hooray_1 ()
  23 {
  24   stuff (1);
  25 }
  26
  27 static inline void
  28 hip2_1 (void (*g)())
  29 {
  30   int i;
  31   g ();
  32   /* Some stuff to make the function bigger so that hip1_1 gets inlined
  33      fiorst. */
  34   for (i = 0; i < get_input (); i++)
  35     {
  36       stuff (2);
  37       stuff (2+2);
  38     }
  39 }
  40
  41 static inline void
  42 hip1_1 (void (*g)())
  43 {
  44   hip2_1 (g);
  45 }
  46
  47 static void
  48 hooray_2 ()
  49 {
  50   stuff (1);
  51 }
  52
  53 static inline void
  54 hip2_2 (void (*g)())
  55 {
  56   g ();
  57 }
  58
  59 static inline void
  60 hip1_2 (void (*g)())
  61 {
  62   int i;
  63
  64   hip2_2 (g);
  65
  66   /* Some stuff to make the function bigger so that hip2_2 gets inlined
  67      fiorst. */
  68   for (i = 0; i < get_input (); i++)
  69     {
  70       stuff (2);
  71       stuff (2+2);
  72     }
  73 }
  74
  75 int
  76 main (int argc, int *argv[])
  77 {
  78   int i;
  79
  80   for (i = 0; i < get_input (); i++)
  81     {
  82       hip1_1 (hooray_1);
  83       hip1_2 (hooray_2);
  84     }
  85   return 0;
  86 }
  87
  88 /* { dg-final { scan-ipa-dump-times "removing its cloning-created reference" 2 "cp"  } } */
  89 /* { dg-final { scan-ipa-dump "ipa-prop: Removed a reference"  "inline"  } } */
  90 /* { dg-final { scan-ipa-dump-times "ipa-prop: Removing cloning-created reference" 2 "inline"  } } */
  91 /* { dg-final { scan-tree-dump-not "hooray"  "optimized"  } } */