diff options
Diffstat (limited to 'sysdeps/powerpc')
| -rw-r--r-- | sysdeps/powerpc/fpu/e_hypot.c | 94 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile | 5 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot-power7.c | 19 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot-ppc64.c | 26 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot.c | 33 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf-power7.c | 19 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf-ppc64.c | 26 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf.c | 33 |
8 files changed, 23 insertions, 232 deletions
diff --git a/sysdeps/powerpc/fpu/e_hypot.c b/sysdeps/powerpc/fpu/e_hypot.c index 039e5be430..16cc55bed9 100644 --- a/sysdeps/powerpc/fpu/e_hypot.c +++ b/sysdeps/powerpc/fpu/e_hypot.c @@ -22,15 +22,6 @@ #include <math-underflow.h> #include <stdint.h> -static const double two60 = 1.152921504606847e+18; -static const double two500 = 3.2733906078961419e+150; -static const double two600 = 4.149515568880993e+180; -static const double two1022 = 4.49423283715579e+307; -static const double twoM500 = 3.054936363499605e-151; -static const double twoM600 = 2.4099198651028841e-181; -static const double two60factor = 1.5592502418239997e+290; -static const double pdnum = 2.225073858507201e-308; - /* __ieee754_hypot(x,y) * * This a FP only version without any FP->INT conversion. @@ -39,53 +30,18 @@ static const double pdnum = 2.225073858507201e-308; * is needed. */ -#ifdef _ARCH_PWR7 -/* POWER7 isinf and isnan optimization are fast. */ -# define TEST_INF_NAN(x, y) \ - if ((isinf(x) || isinf(y)) \ - && !issignaling (x) && !issignaling (y)) \ - return INFINITY; \ - if (isnan(x) || isnan(y)) \ - return x + y; -# else -/* For POWER6 and below isinf/isnan triggers LHS and PLT calls are - * costly (especially for POWER6). */ -# define GET_TW0_HIGH_WORD(d1,d2,i1,i2) \ - do { \ - ieee_double_shape_type gh_u1; \ - ieee_double_shape_type gh_u2; \ - gh_u1.value = (d1); \ - gh_u2.value = (d2); \ - (i1) = gh_u1.parts.msw & 0x7fffffff; \ - (i2) = gh_u2.parts.msw & 0x7fffffff; \ - } while (0) - -# define TEST_INF_NAN(x, y) \ - do { \ - uint32_t hx, hy; \ - GET_TW0_HIGH_WORD(x, y, hx, hy); \ - if (hy > hx) { \ - uint32_t ht = hx; hx = hy; hy = ht; \ - } \ - if (hx >= 0x7ff00000) { \ - if ((hx == 0x7ff00000 || hy == 0x7ff00000) \ - && !issignaling (x) && !issignaling (y)) \ - return INFINITY; \ - return x + y; \ - } \ - } while (0) - -#endif - - double __ieee754_hypot (double x, double y) { + if ((isinf (x) || isinf (y)) + && !issignaling (x) && !issignaling (y)) + return INFINITY; + if (isnan (x) || isnan (y)) + return x + y; + x = fabs (x); y = fabs (y); - TEST_INF_NAN (x, y); - if (y > x) { double t = x; @@ -94,40 +50,34 @@ __ieee754_hypot (double x, double y) } if (y == 0.0) return x; + /* if y is higher enough, y * 2^60 might overflow. The tests if y >= 1.7976931348623157e+308/2^60 (two60factor) and uses the appropriate check to avoid the overflow exception generation. */ - if (y > two60factor) - { - if ((x / y) > two60) - return x + y; - } - else - { - if (x > (y * two60)) - return x + y; - } - if (x > two500) + if (y <= 0x1.fffffffffffffp+963 && x > (y * 0x1p+60)) + return x + y; + + if (x > 0x1p+500) { - x *= twoM600; - y *= twoM600; - return sqrt (x * x + y * y) / twoM600; + x *= 0x1p-600; + y *= 0x1p-600; + return sqrt (x * x + y * y) / 0x1p-600; } - if (y < twoM500) + if (y < 0x1p-500) { - if (y <= pdnum) + if (y <= 0x0.fffffffffffffp-1022) { - x *= two1022; - y *= two1022; - double ret = sqrt (x * x + y * y) / two1022; + x *= 0x1p+1022; + y *= 0x1p+1022; + double ret = sqrt (x * x + y * y) / 0x1p+1022; math_check_force_underflow_nonneg (ret); return ret; } else { - x *= two600; - y *= two600; - return sqrt (x * x + y * y) / two600; + x *= 0x1p+600; + y *= 0x1p+600; + return sqrt (x * x + y * y) / 0x1p+600; } } return sqrt (x * x + y * y); diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile index 118865a1a9..534d5a7133 100644 --- a/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile @@ -8,8 +8,7 @@ sysdep_calls := s_modf-power5+ s_modf-ppc64 \ sysdep_routines += $(sysdep_calls) libm-sysdep_routines += s_logb-power7 s_logbf-power7 \ s_logbl-power7 s_logb-ppc64 s_logbf-ppc64 \ - s_logbl-ppc64 e_hypot-ppc64 \ - e_hypot-power7 e_hypotf-ppc64 e_hypotf-power7 \ + s_logbl-ppc64 \ $(sysdep_calls:s_%=m_%) CFLAGS-s_logbf-power7.c = -mcpu=power7 @@ -17,8 +16,6 @@ CFLAGS-s_logbl-power7.c = -mcpu=power7 CFLAGS-s_logb-power7.c = -mcpu=power7 CFLAGS-s_modf-power5+.c = -mcpu=power5+ CFLAGS-s_modff-power5+.c = -mcpu=power5+ -CFLAGS-e_hypot-power7.c = -mcpu=power7 -CFLAGS-e_hypotf-power7.c = -mcpu=power7 # These files quiet sNaNs in a way that is optimized away without # -fsignaling-nans. diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot-power7.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot-power7.c deleted file mode 100644 index 69818d8438..0000000000 --- a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot-power7.c +++ /dev/null @@ -1,19 +0,0 @@ -/* __ieee_hypot() POWER7 version. - Copyright (C) 2013-2019 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdeps/powerpc/powerpc32/power4/fpu/multiarch/e_hypot-power7.c> diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot-ppc64.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot-ppc64.c deleted file mode 100644 index da1e80f0d6..0000000000 --- a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot-ppc64.c +++ /dev/null @@ -1,26 +0,0 @@ -/* __ieee_hypot() PowerPC64 version. - Copyright (C) 2013-2019 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <math.h> - -#undef strong_alias -#define strong_alias(a, b) - -#define __ieee754_hypot __ieee754_hypot_ppc64 - -#include <sysdeps/powerpc/fpu/e_hypot.c> diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot.c deleted file mode 100644 index 3bd04e9517..0000000000 --- a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypot.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Multiple versions of ieee754_hypot. - Copyright (C) 2013-2019 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <math.h> -#include <math_private.h> -#include <math_ldbl_opt.h> -#include <shlib-compat.h> -#include "init-arch.h" - -extern __typeof (__ieee754_hypot) __ieee754_hypot_ppc64 attribute_hidden; -extern __typeof (__ieee754_hypot) __ieee754_hypot_power7 attribute_hidden; - -libc_ifunc (__ieee754_hypot, - (hwcap & PPC_FEATURE_ARCH_2_06) - ? __ieee754_hypot_power7 - : __ieee754_hypot_ppc64); - -strong_alias (__ieee754_hypot, __hypot_finite) diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf-power7.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf-power7.c deleted file mode 100644 index 223947a617..0000000000 --- a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf-power7.c +++ /dev/null @@ -1,19 +0,0 @@ -/* __ieee_hypotf() POWER7 version. - Copyright (C) 2013-2019 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdeps/powerpc/powerpc32/power4/fpu/multiarch/e_hypotf-power7.c> diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf-ppc64.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf-ppc64.c deleted file mode 100644 index 6d5d54bb79..0000000000 --- a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf-ppc64.c +++ /dev/null @@ -1,26 +0,0 @@ -/* __ieee_hypot() PowerPC64 version. - Copyright (C) 2013-2019 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <math.h> - -#undef strong_alias -#define strong_alias(a, b) - -#define __ieee754_hypotf __ieee754_hypotf_ppc64 - -#include <sysdeps/powerpc/fpu/e_hypotf.c> diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf.c deleted file mode 100644 index 02c0ab497f..0000000000 --- a/sysdeps/powerpc/powerpc64/fpu/multiarch/e_hypotf.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Multiple versions of ieee754_hypot. - Copyright (C) 2013-2019 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <math.h> -#include <math_private.h> -#include <math_ldbl_opt.h> -#include <shlib-compat.h> -#include "init-arch.h" - -extern __typeof (__ieee754_hypotf) __ieee754_hypotf_ppc64 attribute_hidden; -extern __typeof (__ieee754_hypotf) __ieee754_hypotf_power7 attribute_hidden; - -libc_ifunc (__ieee754_hypotf, - (hwcap & PPC_FEATURE_ARCH_2_06) - ? __ieee754_hypotf_power7 - : __ieee754_hypotf_ppc64); - -strong_alias (__ieee754_hypotf, __hypotf_finite) |