gcc/testsuite/gcc.dg/tree-ssa/fre-vce-1.c

   1 /* { dg-options "-O2 -fdump-tree-fre -w" } */
   2 /* { dg-options "-O2 -fdump-tree-fre -w -msse" { target { i?86-*-* x86_64-*-* } } } */
   3 /* { dg-do compile } */
   4 #define vector __attribute__((vector_size(sizeof(int)*4) ))
   5 struct s { vector int i; };
   6 vector float f(struct s *sv)
   7 {
   8   sv->i = (vector int){1, 2, 3, 4};
   9   return (vector float)sv->i;
  10 }
  11
  12
  13 vector float f1(struct s *sv, vector int a)
  14 {
  15   sv->i = a;
  16   return (vector float)sv->i;
  17 }
  18
  19 struct s1 { int i; };
  20
  21 void g(struct s1 *, float);
  22 void a1 (struct s1 sv)
  23 {
  24   sv.i = 1;
  25   g(&sv, *(float*)&sv.i);
  26 }
  27
  28
  29 void a2 (struct s1 sv, int i)
  30 {
  31   sv.i = i;
  32   g(&sv, *(float*)&sv.i);
  33 }
  34
  35 /* { dg-final { scan-tree-dump-times "sv_\[0-9\]\\\(D\\\)->i" 2 "fre" } } */
  36 /* { dg-final { scan-tree-dump-times "sv.i" 2 "fre" } } */
  37 /* { dg-final { cleanup-tree-dump "fre" } } */