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[AArch64] Set jump-align=4 for neoversen1

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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.

gcc/
	* config/aarch64/aarch64.c (neoversen1_tunings): Set jump_align to 4.
This commit is contained in:
Wilco Dijkstra 2020-01-20 14:29:40 +00:00
parent 45d06a4045
commit 3a43459715
2 changed files with 5 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2020-01-20 Wilco Dijkstra <wdijkstr@arm.com>
* config/aarch64/aarch64.c (neoversen1_tunings): Set jump_align to 4.
2020-01-20 Andrew Pinski <apinski@marvell.com>
PR middle-end/93242

2
gcc/config/aarch64/aarch64.c
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@ -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. */