Replace autovectorize_vector_sizes with autovectorize_vector_modes
authorRichard Sandiford <richard.sandiford@arm.com>
Thu, 14 Nov 2019 15:03:17 +0000 (15:03 +0000)
committerRichard Sandiford <rsandifo@gcc.gnu.org>
Thu, 14 Nov 2019 15:03:17 +0000 (15:03 +0000)
commite021fb865564b62a10adb1e98f75b5ea05058047
tree887a7266e62237498f1d6bfa5d1c8c9d681210e6
parent0203c4f3bfb3e3242635b0cee0b9deedb4070a62
Replace autovectorize_vector_sizes with autovectorize_vector_modes

This is another patch in the series to remove the assumption that
all modes involved in vectorisation have to be the same size.
Rather than have the target provide a list of vector sizes,
it makes the target provide a list of vector "approaches",
with each approach represented by a mode.

A later patch will pass this mode to targetm.vectorize.related_mode
to get the vector mode for a given element mode.  Until then, the modes
simply act as an alternative way of specifying the vector size.

2019-11-14  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
* target.h (vector_sizes, auto_vector_sizes): Delete.
(vector_modes, auto_vector_modes): New typedefs.
* target.def (autovectorize_vector_sizes): Replace with...
(autovectorize_vector_modes): ...this new hook.
* doc/tm.texi.in (TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES):
Replace with...
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_MODES): ...this new hook.
* doc/tm.texi: Regenerate.
* targhooks.h (default_autovectorize_vector_sizes): Delete.
(default_autovectorize_vector_modes): New function.
* targhooks.c (default_autovectorize_vector_sizes): Delete.
(default_autovectorize_vector_modes): New function.
* omp-general.c (omp_max_vf): Use autovectorize_vector_modes instead
of autovectorize_vector_sizes.  Use the number of units in the mode
to calculate the maximum VF.
* omp-low.c (omp_clause_aligned_alignment): Use
autovectorize_vector_modes instead of autovectorize_vector_sizes.
Use a loop based on related_mode to iterate through all supported
vector modes for a given scalar mode.
* optabs-query.c (can_vec_mask_load_store_p): Use
autovectorize_vector_modes instead of autovectorize_vector_sizes.
* tree-vect-loop.c (vect_analyze_loop, vect_transform_loop): Likewise.
* tree-vect-slp.c (vect_slp_bb_region): Likewise.
* config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
Replace with...
(aarch64_autovectorize_vector_modes): ...this new function.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES): Delete.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_MODES): Define.
* config/arc/arc.c (arc_autovectorize_vector_sizes): Replace with...
(arc_autovectorize_vector_modes): ...this new function.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES): Delete.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_MODES): Define.
* config/arm/arm.c (arm_autovectorize_vector_sizes): Replace with...
(arm_autovectorize_vector_modes): ...this new function.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES): Delete.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_MODES): Define.
* config/i386/i386.c (ix86_autovectorize_vector_sizes): Replace with...
(ix86_autovectorize_vector_modes): ...this new function.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES): Delete.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_MODES): Define.
* config/mips/mips.c (mips_autovectorize_vector_sizes): Replace with...
(mips_autovectorize_vector_modes): ...this new function.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES): Delete.
(TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_MODES): Define.

From-SVN: r278236
17 files changed:
gcc/ChangeLog
gcc/config/aarch64/aarch64.c
gcc/config/arc/arc.c
gcc/config/arm/arm.c
gcc/config/i386/i386.c
gcc/config/mips/mips.c
gcc/doc/tm.texi
gcc/doc/tm.texi.in
gcc/omp-general.c
gcc/omp-low.c
gcc/optabs-query.c
gcc/target.def
gcc/target.h
gcc/targhooks.c
gcc/targhooks.h
gcc/tree-vect-loop.c
gcc/tree-vect-slp.c