diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S | 6 |
2 files changed, 7 insertions, 4 deletions
diff --git a/ChangeLog b/ChangeLog index 3ce2b0467b..ced515c462 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2017-06-23 H.J. Lu <hongjiu.lu@intel.com> + + * sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S (between_2_3): + Replace movzbl and orl with movb. + 2017-06-23 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> * manual/arith.texi (Infinity and NaN): Document SNANFN and SNANFNx. diff --git a/sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S b/sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S index 2cd2f71b85..abcc61c381 100644 --- a/sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S +++ b/sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S @@ -144,10 +144,8 @@ L(between_2_3): shll $8, %ecx bswap %eax bswap %ecx - movzbl -1(%rdi, %rdx), %edi - movzbl -1(%rsi, %rdx), %esi - orl %edi, %eax - orl %esi, %ecx + movb -1(%rdi, %rdx), %al + movb -1(%rsi, %rdx), %cl /* Subtraction is okay because the upper 8 bits are zero. */ subl %ecx, %eax ret |