gcc/testsuite/gcc.dg/tree-ssa/vector-6.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-ssa -fdump-tree-ccp1 -Wno-psabi -w" } */
   3 /* { dg-additional-options "-msse2" { target i?86-*-* x86_64-*-* } } */
   4 /* { dg-additional-options "-maltivec" { target powerpc_altivec_ok } } */
   5
   6 typedef int v4si __attribute__((vector_size (4 * sizeof (int))));
   7
   8 v4si test1 (v4si v, int i)
   9 {
  10   ((int *)&v)[0] = i;
  11   return v;
  12 }
  13
  14 v4si test2 (v4si v, int i)
  15 {
  16   int *p = (int *)&v;
  17   *p = i;
  18   return v;
  19 }
  20
  21 v4si test3 (v4si v, int i)
  22 {
  23   ((int *)&v)[3] = i;
  24   return v;
  25 }
  26
  27 v4si test4 (v4si v, int i)
  28 {
  29   int *p = (int *)&v;
  30   p += 3;
  31   *p = i;
  32   return v;
  33 }
  34
  35 /* { dg-final { scan-tree-dump-times "Now a gimple register: v" 2 "ssa" { target { { i?86-*-* x86_64-*-* aarch64*-*-* } || { powerpc_altivec_ok } } } } } */
  36 /* { dg-final { scan-tree-dump-times "Now a gimple register: v" 2 "ccp1" { target { { i?86-*-* x86_64-*-* aarch64*-*-* } || { powerpc_altivec_ok } } } } } */