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| author | Andre Vieira <andre.simoesdiasvieira@arm.com> | 2021-12-02 14:34:15 +0000 |
|---|---|---|
| committer | Andre Vieira <andre.simoesdiasvieira@arm.com> | 2022-01-10 17:54:33 +0000 |
| commit | d3ff7420e941931d32ce2e332e7968fe67ba20af (patch) | |
| tree | 14dc5d0f7401326cf19569ccfa92dc0841a4ac0c /gcc/tree-vectorizer.c | |
| parent | 828474fafd2ed33430172fe227f9da7d6fb98723 (diff) | |
| download | gcc-d3ff7420e941931d32ce2e332e7968fe67ba20af.zip gcc-d3ff7420e941931d32ce2e332e7968fe67ba20af.tar.gz gcc-d3ff7420e941931d32ce2e332e7968fe67ba20af.tar.bz2 | |
[vect] Re-analyze all modes for epilogues
gcc/ChangeLog:
* tree-vectorizer.c (better_epilogue_loop_than_p): Round factors up for
epilogue costing.
* tree-vect-loop.c (vect_analyze_loop): Re-analyze all modes for
epilogues, unless we are guaranteed that we can't have partial vectors.
* genopinit.c: (partial_vectors_supported): Generate new function.
gcc/testsuite/ChangeLog:
* gcc.target/aarch64/masked_epilogue.c: New test.
Diffstat (limited to 'gcc/tree-vectorizer.c')
| -rw-r--r-- | gcc/tree-vectorizer.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/gcc/tree-vectorizer.c b/gcc/tree-vectorizer.c index e82750c..48eed40 100644 --- a/gcc/tree-vectorizer.c +++ b/gcc/tree-vectorizer.c @@ -1887,11 +1887,13 @@ vector_costs::better_epilogue_loop_than_p (const vector_costs *other, { unsigned HOST_WIDE_INT main_vf_max = estimated_poly_value (main_poly_vf, POLY_VALUE_MAX); + unsigned HOST_WIDE_INT other_vf_max + = estimated_poly_value (other_vf, POLY_VALUE_MAX); + unsigned HOST_WIDE_INT this_vf_max + = estimated_poly_value (this_vf, POLY_VALUE_MAX); - other_factor = main_vf_max / estimated_poly_value (other_vf, - POLY_VALUE_MAX); - this_factor = main_vf_max / estimated_poly_value (this_vf, - POLY_VALUE_MAX); + other_factor = CEIL (main_vf_max, other_vf_max); + this_factor = CEIL (main_vf_max, this_vf_max); /* If the loop is not using partial vectors then it will iterate one time less than one that does. It is safe to subtract one here, |