gcc/testsuite/gcc.dg/vect/bb-slp-75.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_float } */
   3 /* { dg-additional-options "-ffast-math" } */
   4 /* { dg-additional-options "-msse2 -mfpmath=sse" { target { x86_64-*-* i?86-*-* } } } */
   5
   6 float x[4];
   7
   8 float test1 (float a)
   9 {
  10   return x[0] + x[2] + x[1] + x[3] + a;
  11 }
  12
  13 float test2 (void)
  14 {
  15   return x[3] + x[2] + x[1] + 1.f + x[0];
  16 }
  17
  18 float test3 (float a)
  19 {
  20   return x[0] + a + x[2] + x[1] + x[3] + 1.f;
  21 }
  22
  23 /* We currently require a .REDUC_PLUS direct internal function but do not
  24    have a dejagnu target for this.  */
  25 /* { dg-final { scan-tree-dump-times "Basic block will be vectorized using SLP" 3 "slp2" { target { x86_64-*-* i?86-*-* } } } } */