gcc/testsuite/gcc.dg/fold-bopcond-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-ifcvt" } */
   3
   4 int foo1 (unsigned short a[], unsigned int x)
   5 {
   6   unsigned int i;
   7   for (i = 0; i < 1000; i++)
   8     {
   9       x = a[i];
  10       a[i] = (unsigned short)(x >= 32768 ? x - 32768 : 0);
  11     }
  12   return x;
  13 }
  14
  15 int foo2 (unsigned short a[], unsigned int x)
  16 {
  17   unsigned int i;
  18   for (i = 0; i < 1000; i++)
  19     {
  20       x = a[i];
  21       a[i] = (unsigned short)(x > 32768 ? x - 32768 : 0);
  22     }
  23   return x;
  24 }
  25
  26 int foo3 (unsigned short a[], unsigned int x)
  27 {
  28   unsigned int i;
  29   for (i = 0; i < 1000; i++)
  30     {
  31       x = a[i];
  32       a[i] = (unsigned short)(x > 1000 ? x - 1000 : 0);
  33     }
  34   return x;
  35 }
  36
  37 int foo4 (unsigned short a[], unsigned int x)
  38 {
  39   unsigned int i;
  40   for (i = 0; i < 1000; i++)
  41     {
  42       x = a[i];
  43       a[i] = (unsigned short)(x >= 2 ? x - 32768 : 32770);
  44     }
  45   return x;
  46 }
  47
  48 /* { dg-final { scan-tree-dump-times "MAX_EXPR " 4 "ifcvt" } } */