From 252296c625a7ab59633a3837954d426f0ce89d3b Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Fri, 8 Mar 2019 15:04:02 +0000 Subject: powerpc: floor/floorf refactor This patches consolidates all the powerpc floor{f} implementations on the generic sysdeps/powerpc/fpu/s_floor{f}. The generic implementation uses either the compiler builts for ISA 2.03+ (which generates the frim instruction) or a generic implementation which uses FP only operations. The IFUNC organization for powerpc64 is also change to be enabled only for powerpc64 and not for powerpc64le (since minium ISA of 2.08 does not require the fallback generic implementation). 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/round_to_integer.h (set_fenv_mode): Add FLOOR option. (round_mode): Add definition for FLOOR. * sysdeps/powerpc/fpu/s_floor.c: New file. * sysdeps/powerpc/fpu/s_floorf.c: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_floor.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-power5+.S: Remove file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-ppc32.S: Likewise * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-power5+.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-ppc32.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-power5+.c: New file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-power5+.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power5+/fpu/s_floor.S: Remove file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_floorf.S: Remove file. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/Makefile (libm-sysdep_routines): Add s_floor-power5+, s_floor-ppc64, s_floorf-power5+, and s_floorf-ppc64. (CFLAGS-s_floor-power5+.c, CFLAGS-s_floorf-power5+.c): New rule. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floor-power5+.c: New file. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floor-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_floor.c: ... here. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floorf-power5+.c: New file. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floorf-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_floorf.c: ... here. * sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove s_floor-power5+, s_floor-ppc64, s_floorf-power5+, and s_floorf-ppc64. * sysdep/powerpc/powerpc64/fpu/multiarch/s_floor-power5+.S: Remove file. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor-ppc64.S: Remove file. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf-power5+.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: Likewise. Reviewed-by: Gabriel F. T. Gomes --- sysdeps/powerpc/fpu/round_to_integer.h | 4 +++- sysdeps/powerpc/fpu/s_floor.c | 35 ++++++++++++++++++++++++++++++++++ sysdeps/powerpc/fpu/s_floorf.c | 35 ++++++++++++++++++++++++++++++++++ 3 files changed, 73 insertions(+), 1 deletion(-) create mode 100644 sysdeps/powerpc/fpu/s_floor.c create mode 100644 sysdeps/powerpc/fpu/s_floorf.c (limited to 'sysdeps/powerpc/fpu') diff --git a/sysdeps/powerpc/fpu/round_to_integer.h b/sysdeps/powerpc/fpu/round_to_integer.h index c70afbb10f..ff77dde394 100644 --- a/sysdeps/powerpc/fpu/round_to_integer.h +++ b/sysdeps/powerpc/fpu/round_to_integer.h @@ -23,7 +23,8 @@ enum round_mode { - CEIL + CEIL, + FLOOR }; static inline void @@ -33,6 +34,7 @@ set_fenv_mode (enum round_mode mode) switch (mode) { case CEIL: rmode = FE_UPWARD; break; + case FLOOR: rmode = FE_DOWNWARD; break; default: rmode = FE_TONEAREST; break; } __fesetround_inline_nocheck (rmode); diff --git a/sysdeps/powerpc/fpu/s_floor.c b/sysdeps/powerpc/fpu/s_floor.c new file mode 100644 index 0000000000..fb8df97cca --- /dev/null +++ b/sysdeps/powerpc/fpu/s_floor.c @@ -0,0 +1,35 @@ +/* Largest integral value not greater than argument. PowerPC version. + Copyright (C) 2019 Free Software Foundation, Inc. + This file is part of the GNU C Library + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see . */ + +#define NO_MATH_REDIRECT +#include +#include +#include + +double +__floor (double x) +{ +#ifdef _ARCH_PWR5X + return __builtin_floor (x); +#else + return round_to_integer_double (FLOOR, x); +#endif +} +#ifndef __floor +libm_alias_double (__floor, floor) +#endif diff --git a/sysdeps/powerpc/fpu/s_floorf.c b/sysdeps/powerpc/fpu/s_floorf.c new file mode 100644 index 0000000000..ea4723bb69 --- /dev/null +++ b/sysdeps/powerpc/fpu/s_floorf.c @@ -0,0 +1,35 @@ +/* Smallest integral value not less than argument. PowerPC version. + Copyright (C) 2019 Free Software Foundation, Inc. + This file is part of the GNU C Library + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see . */ + +#define NO_MATH_REDIRECT +#include +#include +#include + +float +__floorf (float x) +{ +#ifdef _ARCH_PWR5X + return __builtin_floorf (x); +#else + return round_to_integer_float (FLOOR, x); +#endif +} +#ifndef __floorf +libm_alias_float (__floor, floor) +#endif -- cgit 1.4.1