diff options
| author | Joseph Myers <joseph@codesourcery.com> | 2017-08-25 11:33:04 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-08-25 11:33:04 +0000 |
| commit | bba5c930947e2b440b7d1eafdd3c9e7ff2d28978 (patch) | |
| tree | 8cad09406dad17a6a12d7ccfdcd87a978970e407 /ChangeLog | |
| parent | 3d7b66f66cb223e899a7ebc0f4c20f13e711c9e0 (diff) | |
| download | glibc-bba5c930947e2b440b7d1eafdd3c9e7ff2d28978.tar glibc-bba5c930947e2b440b7d1eafdd3c9e7ff2d28978.tar.gz glibc-bba5c930947e2b440b7d1eafdd3c9e7ff2d28978.tar.bz2 glibc-bba5c930947e2b440b7d1eafdd3c9e7ff2d28978.zip | |
Remove powerpc32 sqrt wrappers.
This patch removes the powerpc32-specific wrappers for sqrt and sqrtf.
These wrappers, by adding architecture-specific uses of _LIB_VERSION
and __kernel_standard, unnecessarily complicate cleanups of libm error
handling. They also do not serve a useful optimization purpose. GCC
knows about sqrt as a built-in function, and can generate direct calls
to a hardware square root instruction, either on its own, in the
-fno-math-errno case, or together with an inline check for the
argument being negative and a call to the out-of-line sqrt function
for error handling only in that case (and has been able to do so for a
long time). Thus in practice the wrapper will only be called only in
the case of negative arguments, which is not a case it is useful to
optimize for.
Tested with build-many-glibcs.py for powerpc-linux-gnu-power4.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-power5.S:
Remove file.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-ppc32.S:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat.c:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-power5.S:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-ppc32.S:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat.c:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S: Likewise.
* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S: Likewise.
* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile
(libm-sysdep-routines): Remove w_sqrt_compat-power5,
w_sqrt_compat-ppc32, w_sqrtf_compat-power5 and
w_sqrtf_compat-ppc32.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 23 |
1 files changed, 23 insertions, 0 deletions
@@ -1,3 +1,26 @@ +2017-08-25 Joseph Myers <joseph@codesourcery.com> + + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-power5.S: + Remove file. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat-ppc32.S: + Likewise. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrt_compat.c: + Likewise. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-power5.S: + Likewise. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat-ppc32.S: + Likewise. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/w_sqrtf_compat.c: + Likewise. + * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S: Likewise. + * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S: Likewise. + * sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S: Likewise. + * sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S: Likewise. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile + (libm-sysdep-routines): Remove w_sqrt_compat-power5, + w_sqrt_compat-ppc32, w_sqrtf_compat-power5 and + w_sqrtf_compat-ppc32. + 2017-08-24 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> * math/math.h [defined __cplusplus] (issignaling): In the long |