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| author | Anton Youdkevitch <anton.youdkevitch@bell-sw.com> | 2019-11-05 12:07:53 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <ktkachov@gcc.gnu.org> | 2019-11-05 12:07:53 +0000 |
| commit | 5aef51c2199f69885a43592db3a1ec15f43f4064 (patch) | |
| tree | 9888b1756735b62776655eaa948ead48faf33e6f /gcc | |
| parent | dd2f3208c17a65184e4f4271e41fce7c7cddebc5 (diff) | |
| download | gcc-5aef51c2199f69885a43592db3a1ec15f43f4064.zip gcc-5aef51c2199f69885a43592db3a1ec15f43f4064.tar.gz gcc-5aef51c2199f69885a43592db3a1ec15f43f4064.tar.bz2 | |
[Aarch64] Fix vec_perm cost for thunderx2t99
Here is the one-liner that fixes the incorrect
vec_perm cost for thunderx2t99 chip.
With the patch applied 526.blender of CPU2017
gets ~5% improvement with no measurable changes
for other benchmarks.
2019-11-05 Anton Youdkevitch <anton.youdkevitch@bell-sw.com>
* config/aarch64/aarch64.c (thunderx2t99_vector_cost):
Change vec_perm field to 10.
From-SVN: r277826
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1b80d2c..cf6aa5c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2019-11-05 Anton Youdkevitch <anton.youdkevitch@bell-sw.com> + + * config/aarch64/aarch64.c (thunderx2t99_vector_cost): + Change vec_perm field to 10. + 2019-11-05 Arnaud Charlet <charlet@adacore.com> * doc/install.texi: Further fix syntax for html generation. diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 599d07a..f28fe80 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -585,7 +585,7 @@ static const struct cpu_vector_cost thunderx2t99_vector_cost = 1, /* scalar_store_cost */ 5, /* vec_int_stmt_cost */ 6, /* vec_fp_stmt_cost */ - 3, /* vec_permute_cost */ + 10, /* vec_permute_cost */ 6, /* vec_to_scalar_cost */ 5, /* scalar_to_vec_cost */ 8, /* vec_align_load_cost */ |