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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2018-01-03 07:14:24 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2018-01-03 07:14:24 +0000 |
| commit | c5126ce8cae4f14194414e266be91fdc4b756807 (patch) | |
| tree | 29831b5b373d49c9f075dd2deed5f3e977c7e9fc /gcc/tree-vect-loop.c | |
| parent | 4b6068eadcf9801b9ef4e5f1b7b6354947c27ca8 (diff) | |
| download | gcc-c5126ce8cae4f14194414e266be91fdc4b756807.zip gcc-c5126ce8cae4f14194414e266be91fdc4b756807.tar.gz gcc-c5126ce8cae4f14194414e266be91fdc4b756807.tar.bz2 | |
poly_int: vect_nunits_for_cost
This patch adds a function for getting the number of elements in
a vector for cost purposes, which is always constant. It makes
it possible for a later patch to change GET_MODE_NUNITS and
TYPE_VECTOR_SUBPARTS to a poly_int.
2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* tree-vectorizer.h (vect_nunits_for_cost): New function.
* tree-vect-loop.c (vect_model_reduction_cost): Use it.
* tree-vect-slp.c (vect_analyze_slp_cost_1): Likewise.
(vect_analyze_slp_cost): Likewise.
* tree-vect-stmts.c (vect_model_store_cost): Likewise.
(vect_model_load_cost): Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r256128
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 4c57297..c58a08d 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -3854,13 +3854,15 @@ vect_model_reduction_cost (stmt_vec_info stmt_info, internal_fn reduc_fn, } else if (STMT_VINFO_VEC_REDUCTION_TYPE (stmt_info) == COND_REDUCTION) { - unsigned nunits = TYPE_VECTOR_SUBPARTS (vectype); + unsigned estimated_nunits = vect_nunits_for_cost (vectype); /* Extraction of scalar elements. */ - epilogue_cost += add_stmt_cost (target_cost_data, 2 * nunits, + epilogue_cost += add_stmt_cost (target_cost_data, + 2 * estimated_nunits, vec_to_scalar, stmt_info, 0, vect_epilogue); /* Scalar max reductions via COND_EXPR / MAX_EXPR. */ - epilogue_cost += add_stmt_cost (target_cost_data, 2 * nunits - 3, + epilogue_cost += add_stmt_cost (target_cost_data, + 2 * estimated_nunits - 3, scalar_stmt, stmt_info, 0, vect_epilogue); } |