| commit | 4f26ef1b67287d1f2c32865f7d79c13abda81915 | |
| author | H.J. Lu <hjl.tools@gmail.com> | |
| Tue, 30 May 2017 19:39:14 +0000 (30 12:39 -0700) | ||
| committer | H.J. Lu <hjl.tools@gmail.com> | |
| Tue, 30 May 2017 19:39:14 +0000 (30 12:39 -0700) | ||
| tree | bc9cb0c0b5c581cee6aba4f2fc138b48783ab565 | treesnapshot (tar.gz zip) |
| parent | 542a34783ce1cfc63929ec50ab1f9f738711b815 | commitdiff |
x86_64: Remove redundant REX bytes from memchr.S
By x86-64 specification, 32-bit destination registers are zero-extended
to 64 bits. There is no need to use 64-bit registers when only the lower
32 bits are non-zero.
* sysdeps/x86_64/memchr.S (MEMCHR): Use 32-bit registers for
the lower 32 bits.
By x86-64 specification, 32-bit destination registers are zero-extended
to 64 bits. There is no need to use 64-bit registers when only the lower
32 bits are non-zero.
* sysdeps/x86_64/memchr.S (MEMCHR): Use 32-bit registers for
the lower 32 bits.
| ChangeLog | diffblobblamehistory | |
| sysdeps/x86_64/memchr.S | diffblobblamehistory |