gcc/testsuite/gcc.dg/ipa/ipa-icf-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-ipa-icf-optimized"  } */
   3
   4 #include <stdio.h>
   5
   6 struct container
   7 {
   8   int x;
   9   int y;
  10 };
  11
  12 static struct container max;
  13 static int pole[3][3];
  14 static int pole2[123];
  15
  16 static struct container superpole[10][10];
  17
  18 void f1(struct container *c)
  19 {
  20   struct container pes;
  21   pes.x = 123;
  22   pes.y = 123;
  23
  24   struct container *pesp = c;
  25   pesp->x = 5;
  26
  27   pole[1][2] = 3;
  28
  29   superpole[4][3].x = 4;
  30   max.x = 3;
  31   void *x = &pole;
  32
  33   int **a = (int**)pole;
  34   a[1][2] = 543;
  35
  36   if(x != 0)
  37     pole[1][2] = 123;
  38 }
  39
  40 void f2(struct container *c)
  41 {
  42   struct container pes;
  43   pes.x = 123;
  44   pes.y = 123;
  45
  46   struct container *pesp = c;
  47   pesp->x = 5;
  48
  49   pole[1][2] = 3;
  50
  51   superpole[4][3].x = 4;
  52   max.x = 3;
  53   void *x = &pole;
  54
  55   int **a = (int**)pole;
  56   a[1][2] = 543;
  57
  58   if(x != 0)
  59     pole[1][2] = 123;
  60 }
  61
  62 int main(int argc, char **argv)
  63 {
  64   return 0;
  65 }
  66
  67 /* { dg-final { scan-ipa-dump "Semantic equality hit:f1/\[0-9+\]+->f2/\[0-9+\]+" "icf"  } } */
  68 /* { dg-final { scan-ipa-dump "Equal symbols: 1" "icf"  } } */