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| author | Richard Sandiford <richard.sandiford@arm.com> | 2023-06-26 13:48:35 +0100 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2023-06-26 13:48:35 +0100 |
| commit | 9302b0743b366037379af0568534c23ab597b4d4 (patch) | |
| tree | 331cf92c11545114cbe411c1f4a4bcac358ccd87 /gcc | |
| parent | 53d6f57c1b20c6da52aefce737fb7d5263686ba3 (diff) | |
| download | gcc-9302b0743b366037379af0568534c23ab597b4d4.zip gcc-9302b0743b366037379af0568534c23ab597b4d4.tar.gz gcc-9302b0743b366037379af0568534c23ab597b4d4.tar.bz2 | |
vect: Cost intermediate conversions
g:6f19cf7526168f8 extended N-vector to N-vector conversions
to handle cases where an intermediate integer extension or
truncation is needed. This patch adjusts the cost to account
for these intermediate conversions.
gcc/
* tree-vect-stmts.cc (vectorizable_conversion): Take multi_step_cvt
into account when costing non-widening/truncating conversions.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/tree-vect-stmts.cc | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc index bf61461..b31971e 100644 --- a/gcc/tree-vect-stmts.cc +++ b/gcc/tree-vect-stmts.cc @@ -5478,8 +5478,9 @@ vectorizable_conversion (vec_info *vinfo, if (modifier == NONE) { STMT_VINFO_TYPE (stmt_info) = type_conversion_vec_info_type; - vect_model_simple_cost (vinfo, stmt_info, ncopies, dt, ndts, slp_node, - cost_vec); + vect_model_simple_cost (vinfo, stmt_info, + ncopies * (1 + multi_step_cvt), + dt, ndts, slp_node, cost_vec); } else if (modifier == NARROW_SRC || modifier == NARROW_DST) { |