http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53024
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |documentation
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-04-18
Ever Confirmed|0 |1
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-04-18
10:15:29 UTC ---
Confirmed as documentation issue. We can't easily lift this restriction
because we have
/* For a VECTOR_TYPE, this is the number of sub-parts of the vector. */
#define TYPE_VECTOR_SUBPARTS(VECTOR_TYPE) \
(((unsigned HOST_WIDE_INT) 1) \
<< VECTOR_TYPE_CHECK (VECTOR_TYPE)->type_common.precision)
and
struct GTY(()) tree_type_common {
...
unsigned int precision : 10;
10 bits of precision would limit us to vectors with 1024 elements if we'd
not have the power-of-two restriction. (not sure what a sane limit would be,
but 1024 byte vectors do not look too far off).
