gcc/testsuite/gcc.dg/vect/vect-119.c

   1 /* Disabling epilogues until we find a better way to deal with scans.  */
   2 /* { dg-additional-options "--param vect-epilogues-nomask=0 -fdump-tree-optimized-details-blocks" } */
   3 /* { dg-do compile } */
   4 /* { dg-require-effective-target vect_int } */
   5
   6 #define OUTER 32
   7 #define INNER 40
   8
   9 static unsigned int
  10 bar (const unsigned int x[INNER][2], unsigned int sum)
  11 {
  12   int i;
  13
  14   for (i = 0; i < INNER; i++)
  15     sum += x[i][0] * x[i][0] + x[i][1] * x[i][1];
  16   return sum;
  17 }
  18
  19 unsigned int foo (const unsigned int x[OUTER][INNER][2])
  20 {
  21   int i;
  22   unsigned int sum;
  23
  24   sum = 0.0f;
  25   for (i = 0; i < OUTER; i++)
  26     sum = bar (x[i], sum);
  27   return sum;
  28 }
  29
  30 /* { dg-final { scan-tree-dump-times "Detected interleaving load of size 2" 1 "vect" } } */
  31 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */