gcc/testsuite/gcc.dg/tree-ssa/ldist-24.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-ldist-details --param max-completely-peel-times=8" } */
   3
   4 typedef struct S {
   5     double z[8][25];
   6     double x1[8][40];
   7     double x2[8][40];
   8     double y[8][35];
   9 } S;
  10
  11 S * par;
  12 void foo ()
  13 {
  14   int i, j;
  15   for (i = 0; i<8; i++)
  16     for (j = 0; j<35; j++)
  17       {
  18         par->x1[i][j] = par->x2[i][j];
  19         par->x2[i][j] = 0.0;
  20       }
  21 }
  22
  23 /* The cost modeling does not consider WAR as beneficial to split.  */
  24 /* { dg-final { scan-tree-dump "generated memcpy" "ldist" { xfail *-*-* } } } */
  25 /* { dg-final { scan-tree-dump "generated memset zero" "ldist" { xfail *-*-* } } } */