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| author | Alan Modra <amodra@gmail.com> | 2013-08-17 18:47:59 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2013-10-04 10:41:35 +0930 |
| commit | 3be87c77d24c4456ccca4034363b6d1814cd0c84 (patch) | |
| tree | c81589a21d74b94d5ae20235bc6d81715eca858c /sysdeps/powerpc/powerpc32/power7/memrchr.S | |
| parent | 759cfef3ac4c07dba1ece0bbc1207e099348816d (diff) | |
| download | glibc-3be87c77d24c4456ccca4034363b6d1814cd0c84.tar.gz glibc-3be87c77d24c4456ccca4034363b6d1814cd0c84.tar.xz glibc-3be87c77d24c4456ccca4034363b6d1814cd0c84.zip | |
PowerPC LE memset
http://sourceware.org/ml/libc-alpha/2013-08/msg00104.html
One of the things I noticed when looking at power7 timing is that rlwimi
is cracked and the two resulting insns have a register dependency.
That makes it a little slower than the equivalent rldimi.
* sysdeps/powerpc/powerpc64/memset.S: Replace rlwimi with
insrdi. Formatting.
* sysdeps/powerpc/powerpc64/power4/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memset.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/memset.S: Likewise.
* sysdeps/powerpc/powerpc32/power6/memset.S: Likewise.
* sysdeps/powerpc/powerpc32/power7/memset.S: Likewise.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/power7/memrchr.S')
0 files changed, 0 insertions, 0 deletions