gcc/testsuite/gcc.dg/tree-ssa/sra-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-optimized -w" } */
   3 /* Check that SRA does non block copies for structs that just contain vectors. */
   4
   5 #define vector __attribute__((vector_size(16)))
   6
   7 struct vt
   8 {
   9   vector int t;
  10 };
  11
  12
  13 vector int f(vector int t1, vector int t2)
  14 {
  15   struct vt st1, st2, st3;
  16   st1.t = t1;
  17   st2 = st1;
  18   st2.t += t2;
  19   st3 = st2;
  20   return st3.t;
  21 }
  22
  23 /* There should be no references to st as SRA should not have done block copy. */
  24 /* { dg-final { scan-tree-dump-times "st" 0 "optimized" } } */
  25 /* { dg-final { cleanup-tree-dump "optimized" } } */
  26