diff options
| author | Richard Sandiford <richard.sandiford@linaro.org> | 2018-01-03 07:15:20 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2018-01-03 07:15:20 +0000 |
| commit | 86e3672871beff63eebb195642566224c9f80891 (patch) | |
| tree | 2904209c48ac70db2e36ec1f0c1f7534c4b09f0a /gcc/omp-general.c | |
| parent | 87133c45a06aa9c04cb6bc13b3b0733ec43efcec (diff) | |
poly_int: current_vector_size and TARGET_AUTOVECTORIZE_VECTOR_SIZES
This patch changes the type of current_vector_size to poly_uint64.
It also changes TARGET_AUTOVECTORIZE_VECTOR_SIZES so that it fills
in a vector of possible sizes (as poly_uint64s) instead of returning
a bitmask. The documentation claimed that the hook didn't need to
include the default vector size (returned by preferred_simd_mode),
but that wasn't consistent with the omp-low.c usage.
2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* target.h (vector_sizes, auto_vector_sizes): New typedefs.
* target.def (autovectorize_vector_sizes): Return the vector sizes
by pointer, using vector_sizes rather than a bitmask.
* targhooks.h (default_autovectorize_vector_sizes): Update accordingly.
* targhooks.c (default_autovectorize_vector_sizes): Likewise.
* config/aarch64/aarch64.c (aarch64_autovectorize_vector_sizes):
Likewise.
* config/arc/arc.c (arc_autovectorize_vector_sizes): Likewise.
* config/arm/arm.c (arm_autovectorize_vector_sizes): Likewise.
* config/i386/i386.c (ix86_autovectorize_vector_sizes): Likewise.
* config/mips/mips.c (mips_autovectorize_vector_sizes): Likewise.
* omp-general.c (omp_max_vf): Likewise.
* omp-low.c (omp_clause_aligned_alignment): Likewise.
* optabs-query.c (can_vec_mask_load_store_p): Likewise.
* tree-vect-loop.c (vect_analyze_loop): Likewise.
* tree-vect-slp.c (vect_slp_bb): Likewise.
* doc/tm.texi: Regenerate.
* tree-vectorizer.h (current_vector_size): Change from an unsigned int
to a poly_uint64.
* tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): Take
the vector size as a poly_uint64 rather than an unsigned int.
(current_vector_size): Change from an unsigned int to a poly_uint64.
(get_vectype_for_scalar_type): Update accordingly.
* tree.h (build_truth_vector_type): Take the size and number of
units as a poly_uint64 rather than an unsigned int.
(build_vector_type): Add a temporary overload that takes
the number of units as a poly_uint64 rather than an unsigned int.
* tree.c (make_vector_type): Likewise.
(build_truth_vector_type): Take the number of units as a poly_uint64
rather than an unsigned int.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256131
Diffstat (limited to 'gcc/omp-general.c')
| -rw-r--r-- | gcc/omp-general.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/gcc/omp-general.c b/gcc/omp-general.c index 826e1bea642..179139c5e75 100644 --- a/gcc/omp-general.c +++ b/gcc/omp-general.c @@ -429,17 +429,21 @@ omp_max_vf (void) && global_options_set.x_flag_tree_loop_vectorize)) return 1; - int vf = 1; - int vs = targetm.vectorize.autovectorize_vector_sizes (); - if (vs) - vf = 1 << floor_log2 (vs); - else + auto_vector_sizes sizes; + targetm.vectorize.autovectorize_vector_sizes (&sizes); + if (!sizes.is_empty ()) { - machine_mode vqimode = targetm.vectorize.preferred_simd_mode (QImode); - if (GET_MODE_CLASS (vqimode) == MODE_VECTOR_INT) - vf = GET_MODE_NUNITS (vqimode); + poly_uint64 vf = 0; + for (unsigned int i = 0; i < sizes.length (); ++i) + vf = ordered_max (vf, sizes[i]); + return vf; } - return vf; + + machine_mode vqimode = targetm.vectorize.preferred_simd_mode (QImode); + if (GET_MODE_CLASS (vqimode) == MODE_VECTOR_INT) + return GET_MODE_NUNITS (vqimode); + + return 1; } /* Return maximum SIMT width if offloading may target SIMT hardware. */ |