On 12/01/11 17:38, Julian Brown wrote:
On Thu, 9 Dec 2010 14:56:39 +
Julian Brown jul...@codesourcery.com wrote:
On Thu, 9 Dec 2010 14:40:59 + (UTC)
Joseph S. Myers jos...@codesourcery.com wrote:
On Thu, 9 Dec 2010, Julian Brown wrote:
Unfortunately for C only, since building C++ was broken at the
time I started testing. Some tests fail to vectorize post-patch
in BE mode (predictably, since fewer things end up vectorizable),
but many execution tests transition from FAIL to PASS.
Do any tests (scan, not execution) now fail for big endian in ways
that indicate some of the check_effective_target_vect_* functions
in target-supports.exp should be updated to know that certain
features are only supported for little endian?
Possibly, yes: I suspect a few of those may need updating, really. One
awkward bit is that I'm still allowing some of the operations for
double-word registers only -- I don't think the
check_effective_target_* tests will suffice to distinguish between
D-reg Q-reg cases.
This version of the patch tweaks target-supports.exp to say that
various operations are not available in big-endian mode (removing some
of the FAILs from the previous version -- though in big-endian mode
without -mvectorize-with-neon-quad, some tests have transitioned from
PASS to XPASS. I'm not sure that's worth worrying about).
The main part of the patch remains unchanged.
OK to apply?
Cheers,
Julian
ChangeLog
gcc/
* config/arm/neon.md (vec_shr_mode, vec_shl_mode): Disable in
big-endian mode.
(reduc_splus_mode, reduc_uplus_mode, reduc_smin_mode)
(reduc_smax_mode, reduc_umin_mode, reduc_umax_mode)
(neon_vec_unpackUS_lo_mode, neon_vec_unpackUS_hi_mode)
(vec_unpackUS_hi_mode, vec_unpackUS_lo_mode)
(neon_vec_USmult_lo_mode, vec_widen_USmult_lo_mode)
(neon_vec_USmult_hi_mode, vec_widen_USmult_hi_mode)
(vec_pack_trunc_mode, neon_vec_pack_trunc_mode): Disable for Q
registers in big-endian mode.
gcc/testsuite/
* lib/target-supports.exp
(check_effective_target_arm_little_endian): New.
(check_effective_target_vect_pack_trunc): Use above.
(check_effective_target_vect_unpack): Likewise.
(check_effective_target_vect_element_align): Test
check_effective_target_arm_vect_no_misalign for ARM.
OK.
R.
