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| author | Will Newton <will.newton@linaro.org> | 2013-07-01 09:58:34 +0000 |
|---|---|---|
| committer | Will Newton <will.newton@linaro.org> | 2013-07-01 09:58:34 +0000 |
| commit | 5073668c61818d54189e08ca0cfa690558751870 (patch) | |
| tree | 011cc1d6c36f9e60ce4636fa12c0c0a1a8292b67 /newlib/libc | |
| parent | 562b70fbacf3987c231f2b1e5628f006a49a883f (diff) | |
| download | cygnal-5073668c61818d54189e08ca0cfa690558751870.tar.gz cygnal-5073668c61818d54189e08ca0cfa690558751870.tar.bz2 cygnal-5073668c61818d54189e08ca0cfa690558751870.zip | |
memcpy-armv7a.S: Improve performance with misaligned buffers.
Adjust the conditions for entering the aligned copy loop to
improve performance on mutually misaligned buffer copies.
2013-07-01 Will Newton <will.newton@linaro.org>
* libc/machine/arm/memcpy-armv7a.S: Adjust entry to
aligned loop to improve misaligned copy performance.
Diffstat (limited to 'newlib/libc')
| -rw-r--r-- | newlib/libc/machine/arm/memcpy-armv7a.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/newlib/libc/machine/arm/memcpy-armv7a.S b/newlib/libc/machine/arm/memcpy-armv7a.S index de5bf9ad8..cd7962e07 100644 --- a/newlib/libc/machine/arm/memcpy-armv7a.S +++ b/newlib/libc/machine/arm/memcpy-armv7a.S @@ -242,8 +242,8 @@ def_fn memcpy p2align=6 .Lcpy_not_short: /* At least 64 bytes to copy, but don't know the alignment yet. */ str tmp2, [sp, #-FRAME_SIZE]! - and tmp2, src, #3 - and tmp1, dst, #3 + and tmp2, src, #7 + and tmp1, dst, #7 cmp tmp1, tmp2 bne .Lcpy_notaligned |