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| author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2018-03-15 08:06:21 +0530 |
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| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2018-03-15 08:06:21 +0530 |
| commit | b47c3e7637efb77818cbef55dcd0ed1f0ea0ddf1 (patch) | |
| tree | 5a61f11d288c646a5bb1952d8f50f3af3aee0ad6 | |
| parent | 807fee29d2c967e24e3fe05e2182ba53e96e9178 (diff) | |
| download | glibc-b47c3e7637efb77818cbef55dcd0ed1f0ea0ddf1.tar.gz glibc-b47c3e7637efb77818cbef55dcd0ed1f0ea0ddf1.tar.xz glibc-b47c3e7637efb77818cbef55dcd0ed1f0ea0ddf1.zip | |
aarch64/strncmp: Use lsr instead of mov+lsr
A lsr can do what the mov and lsr did.
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/aarch64/strncmp.S | 6 |
2 files changed, 7 insertions, 4 deletions
diff --git a/ChangeLog b/ChangeLog index 88566d020b..38154c20ab 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2018-03-15 Siddhesh Poyarekar <siddhesh@sourceware.org> + + * sysdeps/aarch64/strncmp.S (strncmp): Use lsr instead of + mov + lsr. + 2018-03-15 Rafal Luzynski <digitalfreak@lingonborough.com> [BZ #22963] diff --git a/sysdeps/aarch64/strncmp.S b/sysdeps/aarch64/strncmp.S index 1dc8b79a22..759c752fc2 100644 --- a/sysdeps/aarch64/strncmp.S +++ b/sysdeps/aarch64/strncmp.S @@ -208,15 +208,13 @@ L(done): /* Align the SRC1 to a dword by doing a bytewise compare and then do the dword loop. */ L(try_misaligned_words): - mov limit_wd, limit - lsr limit_wd, limit_wd, #3 + lsr limit_wd, limit, #3 cbz count, L(do_misaligned) neg count, count and count, count, #7 sub limit, limit, count - mov limit_wd, limit - lsr limit_wd, limit_wd, #3 + lsr limit_wd, limit, #3 L(page_end_loop): ldrb data1w, [src1], #1 |