gcc/testsuite/gcc.dg/tree-ssa/pr45685.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-phiopt1-details" } */
   3
   4 typedef unsigned long int uint64_t;
   5 typedef long int int64_t;
   6 int summation_helper_1(int64_t* products, uint64_t count)
   7 {
   8         int s = 0;
   9         uint64_t i;
  10         for(i=0; i<count; i++)
  11         {
  12                 int64_t val = (products[i]>0) ? 1 : -1;
  13                 products[i] *= val;
  14                 if(products[i] != i)
  15                         val = -val;
  16                 products[i] = val;
  17                 s += val;
  18         }
  19         return s;
  20 }
  21
  22
  23 int summation_helper_2(int64_t* products, uint64_t count)
  24 {
  25         int s = 0;
  26         uint64_t i;
  27         for(i=0; i<count; i++)
  28         {
  29                 int val = (products[i]>0) ? 1 : -1;
  30                 products[i] *= val;
  31                 if(products[i] != i)
  32                         val = -val;
  33                 products[i] = val;
  34                 s += val;
  35         }
  36         return s;
  37 }
  38
  39 /* { dg-final { scan-tree-dump-times "converted to straightline code" 2 "phiopt1" } } */
  40 /* { dg-final { cleanup-tree-dump "phiopt1" } } */
  41