gcc/testsuite/gcc.dg/ipa/ipa-icf-5.c

   1 /* { dg-do compile { target c99_runtime } } */
   2 /* { dg-options "-O2 -fdump-ipa-icf"  } */
   3 /* { dg-add-options c99_runtime } */
   4
   5 #include <complex.h>
   6
   7 static double test;
   8
   9 __attribute__ ((noinline))
  10 double f1(void)
  11 {
  12   double complex z1 = 1.0 + 3.0 * I;
  13   double complex z2 = 1.0 - 4.0 * I;
  14
  15   unsigned a = 123;
  16   unsigned b = 321;
  17
  18   if (a & b)
  19     return 1.2f;
  20
  21   if(cimag(z1) > 1)
  22     return 1.0f;
  23
  24   test = cimag(z1) + 2;
  25
  26   return cimag(z1 + z2);
  27 }
  28
  29 __attribute__ ((noinline))
  30 double f2(void)
  31 {
  32   double complex z1 = 1.0 + 3.0 * I;
  33   double complex z2 = 1.0 - 4.0 * I;
  34
  35   unsigned a = 123;
  36   unsigned b = 321;
  37
  38   if (a & b)
  39     return 1.2f;
  40
  41   if(cimag(z1) > 1)
  42     return 1.0f;
  43
  44   test = cimag(z1) + 2;
  45
  46   return cimag(z1 + z2);
  47 }
  48
  49 int main()
  50 {
  51   return 1;
  52 }
  53
  54 /* { dg-final { scan-ipa-dump "Semantic equality hit:f1->f2" "icf"  } } */
  55 /* { dg-final { scan-ipa-dump "Equal symbols: 1" "icf"  } } */