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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-05-14 03:41:22 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-05-14 03:41:35 -0700 |
| commit | e322ec3282648e9f05265d4636719ded754a1c3c (patch) | |
| tree | 9b6a1c1eb2000569609a7e2a68d387f98f74edea | |
| parent | 0937e209a7080d52cf7e5a6605532ea081a542ff (diff) | |
| download | glibc-e322ec3282648e9f05265d4636719ded754a1c3c.tar.gz glibc-e322ec3282648e9f05265d4636719ded754a1c3c.tar.xz glibc-e322ec3282648e9f05265d4636719ded754a1c3c.zip | |
x86-64: Remove the unnecessary testl in strlen-avx2.S
Since the result of testl is never used, this patch removes it. Tested on 64-bit AVX2 machine. * sysdeps/x86_64/multiarch/strlen-avx2.S (STRLEN): Remove the unnecessary testl.
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/strlen-avx2.S | 1 |
2 files changed, 5 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index 909dd90524..257261fbf8 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2018-05-14 H.J. Lu <hongjiu.lu@intel.com> + + * sysdeps/x86_64/multiarch/strlen-avx2.S (STRLEN): Remove the + unnecessary testl. + 2018-05-13 Alan Modra <amodra@gmail.com> * sysdeps/hppa/dl-machine.h (elf_machine_rela): Add diff --git a/sysdeps/x86_64/multiarch/strlen-avx2.S b/sysdeps/x86_64/multiarch/strlen-avx2.S index 85d7259746..fb2418cddc 100644 --- a/sysdeps/x86_64/multiarch/strlen-avx2.S +++ b/sysdeps/x86_64/multiarch/strlen-avx2.S @@ -378,7 +378,6 @@ L(4x_vec_end): jnz L(first_vec_x2) VPCMPEQ %ymm4, %ymm0, %ymm4 vpmovmskb %ymm4, %eax - testl %eax, %eax L(first_vec_x3): tzcntl %eax, %eax addq $(VEC_SIZE * 3), %rax |