| Message ID | 201506060512.t565C60R022026@greed.delorie.com |
|---|---|
| State | New |
| Headers | show |
On Sat, 6 Jun 2015, DJ Delorie wrote: > On targets with 2 byte "int" the vectors are 16 values long, which > breaks the index count in __builtin_shuffle() using more than one > input vector. Ok? > > * gcc.dg/pr64252.c: Fix assumption about sizeof(int). > > 2015-06-05 Thomas Koenig <tkoenig@gcc.gnu.org> > Index: gcc.dg/pr64252.c > =================================================================== > --- gcc.dg/pr64252.c (revision 224181) > +++ gcc.dg/pr64252.c (working copy) > @@ -1,11 +1,11 @@ > /* PR target/64252 */ > /* { dg-do run } */ > /* { dg-options "-O2" } */ > > -typedef unsigned int V __attribute__((vector_size (32))); > +typedef unsigned int V __attribute__((vector_size (sizeof(unsigned long) * 8))); Why 'unsigned long' and not 'unsigned int'? Doesn't that break platforms where long and int have a different size? > __attribute__((noinline, noclone)) void > foo (V *a, V *b, V *c, V *d, V *e) > { > V t = __builtin_shuffle (*a, *b, *c); > V v = __builtin_shuffle (t, (V) { ~0U, ~0U, ~0U, ~0U, ~0U, ~0U, ~0U, ~0U }, (V) { 0, 1, 8, 3, 4, 5, 9, 7 });
Sorry, I meant unsigned int.
Index: gcc.dg/pr64252.c =================================================================== --- gcc.dg/pr64252.c (revision 224181) +++ gcc.dg/pr64252.c (working copy) @@ -1,11 +1,11 @@ /* PR target/64252 */ /* { dg-do run } */ /* { dg-options "-O2" } */ -typedef unsigned int V __attribute__((vector_size (32))); +typedef unsigned int V __attribute__((vector_size (sizeof(unsigned long) * 8))); __attribute__((noinline, noclone)) void foo (V *a, V *b, V *c, V *d, V *e) { V t = __builtin_shuffle (*a, *b, *c); V v = __builtin_shuffle (t, (V) { ~0U, ~0U, ~0U, ~0U, ~0U, ~0U, ~0U, ~0U }, (V) { 0, 1, 8, 3, 4, 5, 9, 7 });