gcc/testsuite/c-c++-common/vector-subscript-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized -w -Wno-psabi" } */
   3
   4 #define foobar(n) \
   5     typedef int v##n##si __attribute__ ((vector_size (4 * n))); \
   6 \
   7 int \
   8 foo##n(int x, v##n##si v) \
   9 { \
  10   v[0] ^= v[1]; \
  11   return ((v##n##si)v)[x]; \
  12 } \
  13 \
  14 int \
  15 bar##n(int x, v##n##si v) \
  16 { \
  17   v[0] ^= v[1]; \
  18   return v[x]; \
  19 }
  20
  21 foobar(2)
  22 foobar(4)
  23 foobar(8)
  24 foobar(16)
  25 foobar(32)
  26 foobar(64)
  27
  28 /* Verify we don't have any vector temporaries in the IL.  */
  29 /* { dg-final { scan-tree-dump-not "vector" "optimized" } } */