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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-02-27 11:21:35 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2019-04-04 16:01:14 +0700 |
| commit | 447a1306c3db3fd27be751928cea6892a5867af8 (patch) | |
| tree | c4014c8f7e2957e2f2d5bdd7cec3e883b69df1f0 /ChangeLog | |
| parent | e3fd0b0e93a7b49a2f26640633fb2643c460ff4a (diff) | |
| download | glibc-447a1306c3db3fd27be751928cea6892a5867af8.tar.gz glibc-447a1306c3db3fd27be751928cea6892a5867af8.tar.xz glibc-447a1306c3db3fd27be751928cea6892a5867af8.zip | |
powerpc: Use generic wcscpy optimization
This patch removes the power6 wcscpy optimization and uses generic implementation instead. Currently, both power6 and power7 IFUNC variant resulting binary are essentially the same and the generic implementation with unrolling loop set to 8 also results in similar performance. Checked on powerpc64-linux-gnu. * sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcscpy.c): New rule. * sysdeps/powerpc/power6/wcscpy.c: Remove file. * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-power6.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-power7.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcscpy-power6.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcscpy-power7.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcscpy-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcscpy.c: Likewise. * sysdeps/powerpc/powerpc64/power6/wcscpy.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/Makefile [$(subdir) == wcsmbs] (sysdeps_routines): Remove wcscpy-power6 and wcscpy-power7. (CFLAGS-wcscpy-power7.c, CFLAGS-wcscpy-power6.c): Remove rule. * sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c: Remove wcscpy optimizations. * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 89558b0ea7..db83b9e7b6 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,29 @@ 2019-04-04 Adhemerval Zanella <adhemerval.zanella@linaro.org> + * sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcscpy.c): + New rule. + * sysdeps/powerpc/power6/wcscpy.c: Remove file. + * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-power6.c: + Likewise. + * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-power7.c: + Likewise. + * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-ppc32.c: + Likewise. + * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy.c: Likewise. + * sysdeps/powerpc/powerpc64/multiarch/wcscpy-power6.c: Likewise. + * sysdeps/powerpc/powerpc64/multiarch/wcscpy-power7.c: Likewise. + * sysdeps/powerpc/powerpc64/multiarch/wcscpy-ppc64.c: Likewise. + * sysdeps/powerpc/powerpc64/multiarch/wcscpy.c: Likewise. + * sysdeps/powerpc/powerpc64/power6/wcscpy.c: Likewise. + * sysdeps/powerpc/powerpc32/power4/multiarch/Makefile + [$(subdir) == wcsmbs] (sysdeps_routines): Remove wcscpy-power6 and + wcscpy-power7. + (CFLAGS-wcscpy-power7.c, CFLAGS-wcscpy-power6.c): Remove rule. + * sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise. + * sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c: + Remove wcscpy optimizations. + * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise. + * include/loop_unroll.h: New file. * wcsmbs/wcscpy (__wcscpy): Add option to use loop unrolling besides generic implementation. |