ping
Testing shows the setting of 32:16 for jump alignment has a significant codesize
cost, however it doesn't make a difference in performance. So set jump-align
to 4 to get 1.6% codesize improvement.
OK for commit?
ChangeLog
2019-12-24 Wilco Dijkstra <wdijk...@arm.com>
* config/aarch64/aarch64.c (neoversen1_tunings): Set jump_align to 4.
--
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index
1646ed1d9a3de8ee2f0abff385a1ea145e234475..209ed8ebbe81104d9d8cff0df31946ab7704fb33
100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -1132,7 +1132,7 @@ static const struct tune_params neoversen1_tunings =
3, /* issue_rate */
(AARCH64_FUSE_AES_AESMC | AARCH64_FUSE_CMP_BRANCH), /* fusible_ops */
"32:16", /* function_align. */
- "32:16", /* jump_align. */
+ "4", /* jump_align. */
"32:16", /* loop_align. */
2, /* int_reassoc_width. */
4, /* fp_reassoc_width. */
