The powerpc isnan optimizations are not really a gain:
- GCC will call libm iff -fsignaling-nans is used. This usage pattern
is usually not performance oriented and for such calls PLT overhead
should dominate execution time.
- The power5, power6, and power6x are just micro-optimization to
improve the Load-Hit-Store hazards from floating-point to general
register transfer, and current GCC already has support to minimize
it by inserting either extra nops or group dispatch instructions.
- The power7 uses ftdiv to optimize for some input patterns, but at
cost of others. Comparing against generic C implementation built
for powerpc-linux-gnu-power4 (which uses the hp-timing support on
benchtests):
- Generic sysdeps/ieee754 implementation:
"isnan": {
"": {
"duration": 4.98415e+09,
"iterations": 2.34516e+09,
"max": 45.925,
"min": 2.052,
"mean": 2.12529
},
"INF": {
"duration": 4.74057e+09,
"iterations": 1.69761e+09,
"max": 91.01,
"min": 2.052,
"mean": 2.79249
},
"NAN": {
"duration": 4.74071e+09,
"iterations": 1.68768e+09,
"max": 282.343,
"min": 2.052,
"mean": 2.809
}
}
- power7 optimized one:
$ ./testrun.sh benchtests/bench-isnan
"isnan": {
"": {
"duration": 4.96842e+09,
"iterations": 2.56297e+09,
"max": 50.048,
"min": 1.872,
"mean": 1.93854
},
"INF": {
"duration": 4.76648e+09,
"iterations": 1.54213e+09,
"max": 373.408,
"min": 2.661,
"mean": 3.09084
},
"NAN": {
"duration": 4.76845e+09,
"iterations": 1.54515e+09,
"max": 51.016,
"min": 2.736,
"mean": 3.08607
}
}
So it basically optimizes marginally for normal numbers while
increasing the latency for other kind of FP.
- The generic implementation requires getting the floating point
status, disable the invalid operation bit, and restore the
floating-point status. Each operation is costly and requires
flushing the FP pipeline.
Using the same scenarion for the previous analysis:
"isnan": {
"": {
"duration": 5.08284e+09,
"iterations": 6.2898e+08,
"max": 41.844,
"min": 8.057,
"mean": 8.08108
},
"INF": {
"duration": 4.97904e+09,
"iterations": 6.16176e+08,
"max": 39.661,
"min": 8.057,
"mean": 8.08055
},
"NAN": {
"duration": 4.98695e+09,
"iterations": 5.95866e+08,
"max": 29.728,
"min": 8.345,
"mean": 8.36925
}
}
- The power8 implementation is just the generic implementation using
ISA 2.07 mfvsrd instruction (which GCC uses for generic implementation).
So generic implementation is the best option for powerpc64le.
Checked on powerpc-linux-gnu (built without --with-cpu, with
--with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch),
powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+
and --disable-multi-arch).
* sysdeps/powerpc/fpu/s_isnan.c: Remove file.
* sysdeps/powerpc/fpu/s_isnanf.S: Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
(sysdeps_routines, libm-sysdep_routines): Remove s_isnan-* and
s_isnanf-* objects.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_isnan-power5.S:
Remove file
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_isnan-power6.S:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_isnan-power7.S:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_isnan-ppc32.S:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_isnan.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_isnanf-power5.S:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_isnanf-power6.S:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_isnanf.c: Likewise.
* sysdeps/powerpc/powerpc32/power5/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc32/power5/fpu/s_isnanf.S: Likewise.
* sysdeps/powerpc/powerpc32/power6/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc32/power6/fpu/s_isnanf.S: Likewise.
* sysdeps/powerpc/powerpc32/power7/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc32/power7/fpu/s_isnanf.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (sysdep_calls):
Remove s_isnan-* and s_isnanf-* objects.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power5.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power6.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power6x.S:
Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power7.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-power8.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnan.c: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_isnanf.c: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power5/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/fpu/s_isnanf.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_isnanf.S: Likewise.
Reviewed-by: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com>
GCC always expand copysign{f} for all possible cpus, so calling the libm
is only done if user explicitly states to disable the builtin (which is
done usually not for performance reason). So to provide ifunc variant
for copysign is just unrequired complexity, since libm will be called
on non-performance critical code.
This patch removes both powerpc32 and powerpc64 ifunc variants and
consolidates the powerpc implementation on
sysdeps/powerpc/fpu/s_copysign{f}.c using compiler builtins.
Checked on powerpc-linux-gnu (built without --with-cpu, with
--with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch),
powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+
and --disable-multi-arch).
* sysdeps/powerpc/fpu/s_copysign.c: New file.
* sysdeps/powerpc/fpu/s_copysignf.c: Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Remove file.
* sysdeps/powerpc/powerpc32/fpu/s_copysignf.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
(sysdep_routines, libm-sysdep_routines): Remove s_copysign-power6 and
s_copysign-ppc32.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-power6.S:
Remove file.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign-ppc32.S:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c:
Likewise.
* sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S: Likewise.
* sysdeps/powerpc/powerpc32/power6/fpu/s_copysignf.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (sysdeps_calls):
Remove s_copysign-power6 s_copysign-ppc64.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S:
Remove file.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S:
Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_copysignf.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/fpu/s_copysignf.S: Likewise.
Reviewed-by: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com>
Since the commit
commit 81a1443941
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue Feb 5 17:35:12 2019 -0200
wcsmbs: optimize wcscat
powerpc64 and powerpc64le builds fail when configured with
--disable-multi-arch and --with-cpu=power6 (or newer), due to an
undefined reference to __GI___wcscpy. This patch fixes this on
sysdeps/powerpc/powerpc64/power6/wcscpy.c, which is only used when
multi-arch is disabled.
This patch does nothing for the failures on 32-bits powerpc builds,
because the file is under the powerpc64 subdirectory, however, powerpc
builds were already failing with --disable-multi-arch, with multiple
error messages, even before the aforementioned commit.
Tested for powerpc, powerpc64, and powerpc64le with multi-arch enabled
(all pass) and disabled (powerpc still fails as explained above).
The creation of the divergent sysdeps directory for powerpc64le
commit 2f7f3cd8cd
Author: Paul E. Murphy <murphyp@linux.vnet.ibm.com>
Date: Fri Jul 15 18:04:40 2016 -0500
powerpc64le: Create divergent sysdep directory for powerpc64le.
allowed float128 to be enabled for powerpc64le (little-endian) and not
for powerpc64 (big-endian). Since the only intended difference between
them was the presence or absence of the float128 interface, the sysdeps
directory for powerpc64le explicitly reused the files from powerpc64
(through the use of Implies files).
Although this works, it also means that files under the powerpc64
directory might be preferred over files under powerpc64le. For
instance, on a build for powerpc64le with target set to power9, a file
from powerpc64/power5 might get built, even though a file with the same
name exists in powerpc64le/power8. That happens because the processor
hierarchy was only defined in the sysdeps directory for powerpc64 (and
borrowed by powerpc64le).
This patch fixes this behavior, by creating new subdirectories under
powerpc64 (i.e.: powerpc64/be and powerpc64/le) and creating new Implies
files to provide the hierarchy of processors for powerpc64 and
powerpc64le separately. These changes have no effect on installed,
stripped binaries (which remain unchanged).
Tested that installed stripped binaries are unchanged and that there are
no regressions on powerpc64 and powerpc64le.
Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch makes powerpc libm function implementations use
libm_alias_float to define function aliases.
Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged for all its hard-float powerpc configurations.
* sysdeps/powerpc/fpu/s_cosf.c: Include <libm-alias-float.h>.
(cosf): Define using libm_alias_float.
* sysdeps/powerpc/fpu/s_fabs.S: Include <libm-alias-float.h>.
(fabsf): Define using libm_alias_float.
* sysdeps/powerpc/fpu/s_fmaf.S: Include <libm-alias-float.h>.
(fmaf): Define using libm_alias_float.
* sysdeps/powerpc/fpu/s_rintf.c: Include <libm-alias-float.h>.
(rintf): Define using libm_alias_float.
* sysdeps/powerpc/fpu/s_sinf.c: Include <libm-alias-float.h>.
(sinf): Define using libm_alias_float.
* sysdeps/powerpc/power5+/fpu/s_modff.c: Include
<libm-alias-float.h>.
(modff): Define using libm_alias_float.
* sysdeps/powerpc/power7/fpu/s_logbf.c: Include
<libm-alias-float.h>.
(logbf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_ceilf.S: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_floorf.S: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_llrintf.c: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_llroundf.c: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_lrint.S: Include
<libm-alias-float.h>.
(lrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_lround.S: Include
<libm-alias-float.h>.
(lroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_nearbyintf.S: Include
<libm-alias-float.h>.
(nearbyintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_rintf.S: Include
<libm-alias-float.h>.
(rintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_roundf.S: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/fpu/s_truncf.S: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf.c:
Include <libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c:
Include <libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf.c:
Include <libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llrintf.c:
Include <libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llroundf.c:
Include <libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf.c:
Include <libm-alias-float.h>.
(logbf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lrintf.c:
Include <libm-alias-float.h>.
(lrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lroundf.c:
Include <libm-alias-float.h>.
(lroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_modff.c:
Include <libm-alias-float.h>.
(modff): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_roundf.c:
Include <libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_truncf.c:
Include <libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llrintf.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_ceilf.S: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_floorf.S: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S: Include
<libm-alias-float.h>.
(lroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_roundf.S: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_truncf.S: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6/fpu/s_llrintf.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lrint.S: Include
<libm-alias-float.h>.
(lrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lround.S: Include
<libm-alias-float.h>.
(lroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_cosf.c: Include
<libm-alias-float.h>.
(cosf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llroundf.c: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_logbf.c: Include
<libm-alias-float.h>.
(logbf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_modff.c: Include
<libm-alias-float.h>.
(modff): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_roundf.c: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_sinf.c: Include
<libm-alias-float.h>.
(sinf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_truncf.c: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_ceilf.S: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_floorf.S: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_llroundf.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_nearbyintf.S: Include
<libm-alias-float.h>.
(nearbyintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_rintf.S: Include
<libm-alias-float.h>.
(rintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_roundf.S: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: Include
<libm-alias-float.h>.
(ceilf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: Include
<libm-alias-float.h>.
(floorf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_roundf.S: Include
<libm-alias-float.h>.
(roundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_truncf.S: Include
<libm-alias-float.h>.
(truncf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: Include
<libm-alias-float.h>.
(copysignf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power8/fpu/s_cosf.S: Include
<libm-alias-float.h>.
(cosf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llrint.S: Include
<libm-alias-float.h>.
(llrintf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llround.S: Include
<libm-alias-float.h>.
(llroundf): Define using libm_alias_float.
* sysdeps/powerpc/powerpc64/power8/fpu/s_sinf.S: Include
<libm-alias-float.h>.
(sinf): Define using libm_alias_float.
Continuing the preparation for additional _FloatN / _FloatNx function
aliases, this patch makes the remaining double powerpc functions use
libm_alias_double to define function aliases (with consequent removal
of the need for local compat symbol handling). Previous cleanups
avoid this patch changing installed stripped shared libraries for any
build-many-glibcs.py configuration (there are still some functions in
this patch for which the order of double and float aliases changes
within an individual source file, but in this case this doesn't result
in changes to the final library).
Tested with build-many-glibcs.py that installed stripped shared
libraries are unchanged for all its hard-float powerpc configurations.
* sysdeps/powerpc/power7/fpu/s_logb.c: Include
<libm-alias-double.h>.
(logb): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_llrint.c: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_llround.c: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_lrint.S: Include
<libm-alias-double.h>.
(lrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/fpu/s_lround.S: Include
<libm-alias-double.h>.
(lround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c:
Include <libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llrint.c:
Include <libm-alias-double.h>.
(llrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_llround.c:
Include <libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb.c: Include
<libm-alias-double.h>.
(logb): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lrint.c:
Include <libm-alias-double.h>.
(lrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_lround.c:
Include <libm-alias-double.h>.
(lround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S: Include
<libm-alias-double.h>.
(lround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6/fpu/s_copysign.S: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lrint.S: Include
<libm-alias-double.h>.
(lrint): Define using libm_alias_double.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lround.S: Include
<libm-alias-double.h>.
(lround): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrint.c: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
(lrint): Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_llround.c: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_logb.c: Include
<libm-alias-double.h>.
(logb): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
(lrint): Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
* sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: Include
<libm-alias-double.h>.
(copysign): Define using libm_alias_double.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
(lrint): Likewise.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llrint.S: Include
<libm-alias-double.h>.
(llrint): Define using libm_alias_double.
(lrint): Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llround.S: Include
<libm-alias-double.h>.
(llround): Define using libm_alias_double.
(lround): Likewise.
Clean up the IFUNC implementations for powerpc in order to remove
unneeded macro definitions.
Tested on ppc64le with and without --disable-multi-arch flag.
* sysdeps/powerpc/powerpc64/multiarch/memcpy-a2.S: Define the
implementation-specific function name and remove unneeded
macros definition.
* sysdeps/powerpc/powerpc64/multiarch/memcpy-cell.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memcpy-power4.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memcpy-power6.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memcpy-power7.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memcpy-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/mempcpy-power7.S: Likewise.
* sysdeps/powerpc/powerpc64/a2/memcpy.S: Set a default function
name if not defined and pass as parameter to macros accordingly.
* sysdeps/powerpc/powerpc64/cell/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/mempcpy.S: Likewise.
Clean up the IFUNC implementations for powerpc in order to remove
unneeded macro definitions.
Tested on ppc64le with and without --disable-multi-arch flag.
* sysdeps/powerpc/powerpc64/multiarch/memset-power4.S: Define the
implementation-specific function name and remove unneeded macros
definition.
* sysdeps/powerpc/powerpc64/multiarch/memset-power6.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memset-power7.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memset-power8.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/memset.S: Set a default function name if
not defined and pass as parameter to macros accordingly.
* sysdeps/powerpc/powerpc64/power4/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/memset.S: Likewise.
Building glibc for powerpc64 with recent (2.27.51.20161012) binutils,
with multi-arch enabled, I get the error:
../sysdeps/powerpc/powerpc64/power6/memset.S: Assembler messages:
../sysdeps/powerpc/powerpc64/power6/memset.S:254: Error: operand out of range (5 is not between 0 and 1)
../sysdeps/powerpc/powerpc64/power6/memset.S:254: Error: operand out of range (128 is not between 0 and 31)
../sysdeps/powerpc/powerpc64/power6/memset.S:254: Error: missing operand
Indeed, cmpli is documented as a four-operand instruction, and looking
at nearby code it seems likely cmpldi was intended. This patch fixes
this powerpc64 code accordingly, and makes a corresponding change to
the powerpc32 code.
Tested for powerpc, powerpc64 and powerpc64le by Tulio Magno Quites
Machado Filho
* sysdeps/powerpc/powerpc32/power6/memset.S (memset): Use cmplwi
instead of cmpli.
* sysdeps/powerpc/powerpc64/power6/memset.S (memset): Use cmpldi
instead of cmpli.
This patch cleanups the multiarch bzero for powerpc64 by remove
the multiarch objects and use instead the the memset embedded
implementation presented in each multiarch optimization. The
code generate is essentially the same, but the TB_TOCLESS (which
is not essential).
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.
http://sourceware.org/ml/libc-alpha/2013-08/msg00103.html
LIttle-endian support for memcpy. I spent some time cleaning up the
64-bit power7 memcpy, in order to avoid the extra alignment traps
power7 takes for little-endian. It probably would have been better
to copy the linux kernel version of memcpy.
* sysdeps/powerpc/powerpc32/power4/memcpy.S: Add little endian support.
* sysdeps/powerpc/powerpc32/power6/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc32/power7/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc32/power7/mempcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/mempcpy.S: Likewise. Make better
use of regs. Use power7 mtocrf. Tidy function tails.
Initially based on the versions found in wcsmbs/* ; these files have
been changed by hand unrolling, and adding some additional variables
to allow some read-ahead to occur, which then relieves some of the
wait-for-increment/wait-for-load/wait-for-compare-results pressure
that was slowing down every iteration through the while-loop.
For 64-bit Power7, These changes give an approx 20% throughput boost
for the wcschr and wcsrchr functions; and approx 40% boost for the
wcscpy function. 32-bit improvements appear to be slightly better
with ~ %30 and ~ %45 respectively. Results for Power6 closely match
those for power7.
This patch tries to organize the implies files for ppc, since there are
a number of processors and most of them are compatible with each other
(backwards compatible).
Having in mind that we start the search for processor-specific files in
the sysdeps/unix/sysv/linux tree
(sysdeps/unix/sysv/linux/powerpc/powerpc[32|64]/[processor]/fpu to be
exact), we would like to grab any linux-specific code from that tree
prior to going through the other tree (sysdeps/powerpc/...).
For that, i removed the Implies files that were originally inside the
fpu directories and placed then in the non-fpu directories (still inside
the unix/sysv/linux tree). If no processor-specific/linux-specific files
could be found, we "imply" the other tree's (sysdeps/powerpc/...) fpu
directory for that specific processor AND also the non-fpu directory for
that same tree.
If, again, no processor-specific code is found, we read another Implies
file that will point to the most compatible processor that we should
grab code from, and so on, until we reach the power4 processor.
So, in summary, the Implies files will live inside these directories
now:
* sysdeps/unix/sysv/linux/powerpc/powerpc[32|64]/[processor]
* sysdeps/powerpc/powerpc[32|64]/[processor]
Practical example of the order we will use to pick power6-specific code
with the new structure.
sysdeps/unix/sysv/linux/powerpc/powerpc[32|64]/power6/fpu ->
sysdeps/unix/sysv/linux/powerpc/powerpc[32|64]/power6 ->
sysdeps/powerpc/powerpc[32|64]/power6/fpu ->
sysdeps/powerpc/powerpc[32|64]/power6 ->
sysdeps/powerpc/powerpc[32|64]/power5+/fpu ->
sysdeps/powerpc/powerpc[32|64]/power5+ ->
sysdeps/powerpc/powerpc[32|64]/power5/fpu ->
sysdeps/powerpc/powerpc[32|64]/power5 ->
sysdeps/powerpc/powerpc[32|64]/power4/fpu ->
sysdeps/powerpc/powerpc[32|64]/power4 (from here, it'll go to the
generic path as usual)
* sysdeps/powerpc/powerpc32/power5/fpu/s_isnanf.S: New file.
* sysdeps/powerpc/powerpc32/power6/fpu/s_isnan.S: New file.
* sysdeps/powerpc/powerpc32/power6/fpu/s_isnanf.S: New file.
* sysdeps/powerpc/powerpc64/power5/fpu/s_isnan.S: New file.
* sysdeps/powerpc/powerpc64/power6/fpu/s_isnan.S: New file.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_isnan.S: New file.
* sysdeps/powerpc/powerpc32/power5/fpu/Implies: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/Implies: New file.
* sysdeps/powerpc/powerpc32/power6/fpu/Implies: New file.
* sysdeps/powerpc/powerpc32/power6x/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/970/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power5/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power6/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power6x/fpu/Implies: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/970/fpu/Implies: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power4/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power5/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power5+/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6x/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/970/fpu/Implies: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power4/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power5/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power5+/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6/fpu/Implies:
New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6x/fpu/Implies:
New file.
2007-05-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S: Move.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llrint.S: To here.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrintf.S: Move.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llrintf.S: To here.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S: Move.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S: To here.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llroundf.S: Move.
* sysdeps/powerpc/powerpc32/power4/fpu/s_llroundf.S: To here.
2007-05-22 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power5+/fpu/s_round.S
(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_trunc.S
(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S
(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S
(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
2007-05-21 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power4/fpu/slowexp.c: New file.
* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.c: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/slowexp.c: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/w_sqrt.c: New file.
2007-03-15 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S
[LONG_DOUBLE_COMPAT]: Add compat_symbol for llrintl@@GLIBC_2_1.
2006-02-13 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6/fpu/s_llrint.S: New File
* sysdeps/powerpc/powerpc32/power6/fpu/s_llrintf.S: New File
* sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S: New File
* sysdeps/powerpc/powerpc32/power6/fpu/s_llroundf.S: New File
2006-10-20 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power4/fpu/slowpow.c: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/slowpow.c: New file.
2006-10-03 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S: New file.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llroundf.S: New file.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/Makefile: Moved.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/mpa.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/Makefile: To here.
* sysdeps/powerpc/powerpc32/power4/fpu/mpa.c: Likewise.
2006-09-29 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lrint.S: New file.
* sysdeps/powerpc/powerpc32/power6x/fpu/s_lround.S: New file.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: New file.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: New file.
2006-09-28 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_llroundf.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S: New file.
* sysdeps/powerpc/powerpc32/power6x/fpu/Implies: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: New file.
* sysdeps/powerpc/powerpc64/power6x/fpu/Implies: New file.
2006-08-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/Makefile: New file.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/mpa.c: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/Makefile: New file.
* sysdeps/powerpc/powerpc64/power4/fpu/mpa.c: New file.
2006-06-15 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power5+/fpu/s_ceil.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_ceilf.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_floor.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_floorf.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_round.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_roundf.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_trunc.S: New file.
* sysdeps/powerpc/powerpc32/power5+/fpu/s_truncf.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceil.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_roundf.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S: New file.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_truncf.S: New file.
2006-03-20 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S: New file.
* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrintf.S: New file.
2007-06-01 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6/memset.S: New file.
* sysdeps/powerpc/powerpc64/power6/memset.S: New file.
2007-05-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/970/Implies: New file.
* sysdeps/powerpc/powerpc32/power5/Implies: New file.
* sysdeps/powerpc/powerpc32/power5+/Implies: New file.
* sysdeps/powerpc/powerpc32/power6/Implies: New file.
* sysdeps/powerpc/powerpc32/power6x/Implies: New file.
* sysdeps/powerpc/powerpc64/970/Implies: New file.
* sysdeps/powerpc/powerpc64/power5/Implies: New file.
* sysdeps/powerpc/powerpc64/power5+/Implies: New file.
* sysdeps/powerpc/powerpc64/power6/Implies: New file.
* sysdeps/powerpc/powerpc64/power6x/Implies: New file.
2007-05-21 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power4/memset.S: New file
2007-03-13 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc64/memcpy.S: Improve aligned loop to minimize
branch miss-predicts. Ensure that cache line crossing does not impact
dispatch grouping.
2006-12-13 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc64/power4/memcopy.h: Replace with include
"../../powerpc32/power4/memcopy.h".
* sysdeps/powerpc/powerpc64/power4/wordcopy.c: Replace with include
"../../powerpc32/power4/wordcopy.c".
2006-10-03 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/powerpc64/Makefile: Moved.
* sysdeps/powerpc/powerpc32/powerpc64/memcopy.h: Likewise.
* sysdeps/powerpc/powerpc32/powerpc64/wordcopy.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/Makefile: To here.
* sysdeps/powerpc/powerpc32/power4/memcopy.h: Likewise.
* sysdeps/powerpc/powerpc32/power4/wordcopy.c: Likewise.
2006-09-10 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6/memcpy.S: New file.
2006-08-31 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power6/wordcopy.c: New file.
* sysdeps/powerpc/powerpc32/powerpc64/Makefile: New file.
* sysdeps/powerpc/powerpc32/powerpc64/memcopy.h: New file.
* sysdeps/powerpc/powerpc32/powerpc64/wordcopy.c: New file.
* sysdeps/powerpc/powerpc64/power4/Makefile: New file.
* sysdeps/powerpc/powerpc64/power4/memcopy.h: New file.
* sysdeps/powerpc/powerpc64/power4/wordcopy.c: New file.
* sysdeps/powerpc/powerpc64/power6/wordcopy.c: New file.
2006-07-06 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc64/power6/memcpy.S: New file.
2006-03-20 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc32/power4/memcmp.S: New file.
* sysdeps/powerpc/powerpc32/power4/memcpy.S: New file.
* sysdeps/powerpc/powerpc32/power4/memset.S: New file.
* sysdeps/powerpc/powerpc32/power4/strncmp.S: New file.
* sysdeps/powerpc/powerpc64/power4/memcmp.S: New file.
* sysdeps/powerpc/powerpc64/power4/memcpy.S: New file.
* sysdeps/powerpc/powerpc64/power4/strncmp.S: New file.
