gcc/testsuite/gcc.dg/vect/aligned-section-anchors-nest-1.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target section_anchors } */
   3 /* { dg-require-effective-target vect_int } */
   4
   5 #include <stdarg.h>
   6 #include "tree-vect.h"
   7
   8 #define N 32
   9
  10 static int a[N][N];
  11 static int b[N][N];
  12 static int c[N][N];
  13
  14 void clobber(int *);
  15
  16 int *foo(void)
  17 {
  18   int i;
  19   int j;
  20
  21   clobber (&a[0][0]);
  22   clobber (&b[0][0]);
  23   clobber (&c[0][0]);
  24
  25   for (i = 0; i < N; i++) {
  26       for (j = 0; j < N; j++) {
  27           c[j][i] += a[j][i] + c[j][i];
  28       }
  29   }
  30   return &c[0][0];
  31 }
  32
  33 /* { dg-final { scan-ipa-dump-times "Increasing alignment of decl" 3 "increase_alignment" } } */
  34 /* { dg-final { cleanup-ipa-dump "increase_alignment" } } */