On Thu, 2011-04-21 at 09:02 +0300, Ira Rosen wrote: > http://gcc.gnu.org/ml/gcc-patches/2011-03/msg02172.html > > The last version: > > ChangeLog: > > * doc/invoke.texi (preferred-vector-size): Document. > * params.h (PREFERRED_VECTOR_SIZE): Define. > * config/arm/arm.c (arm_preferred_simd_mode): Use param > PREFERRED_VECTOR_SIZE instead of > TARGET_NEON_VECTORIZE_QUAD. Make 128 bits the default. > (arm_autovectorize_vector_sizes): Likewise. > * config/arm/arm.opt (NEON_VECTORIZE_QUAD): Add > RejectNegative. > * params.def (PARAM_PREFERRED_VECTOR_SIZE): Define. > > testsuite/ChangeLog: > > * lib/target-supports.exp (check_effective_target_vect_multiple_sizes): > New procedure. > (add_options_for_quad_vectors): Replace with ... > (add_options_for_double_vectors): ... this. > * gfortran.dg/vect/pr19049.f90: Expect more printings on targets that > support multiple vector sizes since the vectorizer attempts to > vectorize with both vector sizes. > * gcc.dg/vect/slp-reduc-6.c, gcc.dg/vect/no-vfa-vect-79.c, > gcc.dg/vect/no-vfa-vect-102a.c, gcc.dg/vect/vect-outer-1a.c, > gcc.dg/vect/vect-outer-1b.c, gcc.dg/vect/vect-outer-2b.c, > gcc.dg/vect/vect-outer-3a.c, gcc.dg/vect/no-vfa-vect-37.c, > gcc.dg/vect/vect-outer-3b.c, gcc.dg/vect/no-vfa-vect-101.c, > gcc.dg/vect/no-vfa-vect-102.c, gcc.dg/vect/vect-reduc-dot-s8b.c, > gcc.dg/vect/vect-outer-1.c, gcc.dg/vect/vect-104.c: Likewise. > * gcc.dg/vect/vect-16.c: Rename to... > * gcc.dg/vect/no-fast-math-vect-16.c: ... this to ensure that it runs > without -ffast-math. > * gcc.dg/vect/vect-42.c: Run with 64 bit vectors if applicable. > * gcc.dg/vect/vect-multitypes-6.c, gcc.dg/vect/vect-52.c, > gcc.dg/vect/vect-54.c, gcc.dg/vect/vect-46.c, gcc.dg/vect/vect-48.c, > gcc.dg/vect/vect-96.c, gcc.dg/vect/vect-multitypes-3.c, > gcc.dg/vect/vect-40.c: Likewise. > * gcc.dg/vect/vect-outer-5.c: Remove quad-vectors option as > redundant. > * gcc.dg/vect/vect-109.c, gcc.dg/vect/vect-peel-1.c, > gcc.dg/vect/vect-peel-2.c, gcc.dg/vect/slp-25.c, > gcc.dg/vect/vect-multitypes-1.c, gcc.dg/vect/slp-3.c, > gcc.dg/vect/no-vfa-pr29145.c, gcc.dg/vect/vect-multitypes-4.c: > Likewise. > * gcc.dg/vect/vect.exp: Run no-fast-math-vect*.c tests with > -fno-fast-math. > > Thanks, > Ira
+@item preferred-vector-size +Preferred vector size in bits for targets that support multiple vector sizes. +Invalid values are ignored. The default is 128. + Shouldn't the preferred size be the largest size supported by the target? Setting it to 128 might be OK today, but who knows what might happen in future? R.
