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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-08-28 06:10:38 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-08-30 10:39:53 -0700 |
| commit | 3c8b9879cab6d41787bc5b14c1748f62fd6d0e5f (patch) | |
| tree | b4ab2d52fa555d843bbcb5dadad6b417a105fc02 /sysdeps | |
| parent | d4877540e565f89f0a33e5b92c9f4b995e2f3a33 (diff) | |
| download | glibc-3c8b9879cab6d41787bc5b14c1748f62fd6d0e5f.tar.gz glibc-3c8b9879cab6d41787bc5b14c1748f62fd6d0e5f.tar.xz glibc-3c8b9879cab6d41787bc5b14c1748f62fd6d0e5f.zip | |
x86-64: Use testl to check __x86_string_control
Use testl, instead of andl, to check __x86_string_control to avoid updating __x86_string_control. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S index 9f02624375..abde8438d4 100644 --- a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S +++ b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S @@ -325,7 +325,7 @@ L(movsb): /* Avoid slow backward REP MOVSB. */ jb L(more_8x_vec_backward) # if AVOID_SHORT_DISTANCE_REP_MOVSB - andl $X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip) + testl $X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip) jz 3f movq %rdi, %rcx subq %rsi, %rcx @@ -333,7 +333,7 @@ L(movsb): # endif 1: # if AVOID_SHORT_DISTANCE_REP_MOVSB - andl $X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip) + testl $X86_STRING_CONTROL_AVOID_SHORT_DISTANCE_REP_MOVSB, __x86_string_control(%rip) jz 3f movq %rsi, %rcx subq %rdi, %rcx |