From 2d9470b2aed2ead3ca9df5173b0ff6c5c468d9d4 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 14 Oct 2013 22:01:36 -0500 Subject: PowerPC: multiarch logb/logbf/logbl for PowerPC32 --- ChangeLog | 34 ++++++++++ sysdeps/ieee754/ldbl-128ibm/s_logbl.c | 3 +- sysdeps/powerpc/power7/fpu/s_logb.c | 78 ++++++++++++++++++++++ sysdeps/powerpc/power7/fpu/s_logbf.c | 60 +++++++++++++++++ sysdeps/powerpc/power7/fpu/s_logbl.c | 71 ++++++++++++++++++++ .../powerpc32/power4/fpu/multiarch/Makefile | 7 +- .../powerpc32/power4/fpu/multiarch/s_logb-power7.c | 31 +++++++++ .../powerpc32/power4/fpu/multiarch/s_logb-ppc32.c | 28 ++++++++ .../powerpc32/power4/fpu/multiarch/s_logb.c | 41 ++++++++++++ .../power4/fpu/multiarch/s_logbf-power7.c | 26 ++++++++ .../powerpc32/power4/fpu/multiarch/s_logbf-ppc32.c | 26 ++++++++ .../powerpc32/power4/fpu/multiarch/s_logbf.c | 32 +++++++++ .../power4/fpu/multiarch/s_logbl-power7.c | 21 ++++++ .../powerpc32/power4/fpu/multiarch/s_logbl-ppc32.c | 21 ++++++ .../powerpc32/power4/fpu/multiarch/s_logbl.c | 32 +++++++++ sysdeps/powerpc/powerpc32/power7/fpu/s_logb.c | 78 ---------------------- sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c | 60 ----------------- sysdeps/powerpc/powerpc32/power7/fpu/s_logbl.c | 70 ------------------- sysdeps/powerpc/powerpc64/power7/fpu/s_logb.c | 2 +- sysdeps/powerpc/powerpc64/power7/fpu/s_logbf.c | 2 +- sysdeps/powerpc/powerpc64/power7/fpu/s_logbl.c | 2 +- 21 files changed, 512 insertions(+), 213 deletions(-) create mode 100644 sysdeps/powerpc/power7/fpu/s_logb.c create mode 100644 sysdeps/powerpc/power7/fpu/s_logbf.c create mode 100644 sysdeps/powerpc/power7/fpu/s_logbl.c create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-ppc32.c create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb.c create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-ppc32.c create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf.c create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-ppc32.c create mode 100644 sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl.c delete mode 100644 sysdeps/powerpc/powerpc32/power7/fpu/s_logb.c delete mode 100644 sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c delete mode 100644 sysdeps/powerpc/powerpc32/power7/fpu/s_logbl.c diff --git a/ChangeLog b/ChangeLog index c96f965..0327415 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,39 @@ 2013-12-06 Adhemerval Zanella + * sysdeps/ieee754/ldbl-128ibm/s_logbl.c (__logbl): Define + long_double_symbol only if __logbl is defined. + * sysdeps/powerpc/powerpc32/power7/fpu/s_logb.c: Moved to ... + * sysdeps/powerpc/power7/fpu/s_logb.c: ... here. + * sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c: Move to ... + * sysdeps/powerpc/power7/fpu/s_logbf.c: ... here. + * sysdeps/powerpc/powerpc32/power7/fpu/s_logbl.c: Move to ... + * sysdeps/powerpc/power7/fpu/s_logbl.c: ... here. + * sysdeps/powerpc/powerpc64/power7/fpu/s_logb.c: Adjust to use new + path for implementation. + * sysdeps/powerpc/powerpc64/power7/fpu/s_logbf.c: Likewise. + * sysdeps/powerpc/powerpc64/power7/fpu/s_logbl.c: Likewise. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile: Add logbf, + logb, and logbl multiarch implementations for PowerPC32. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c: New + file. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-ppc32.c: New + file. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb.c: New file: + multiarch logb for PowerPC32. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c: New + file. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-ppc32.c: New + file. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf.c: New file: + multiarch logbf for PowerPC32. + * sysdeps/powerpc/power4/fpu/multiarch/s_logbl-power7.c: New file. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-ppc32.c: New + file. + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl.c: New file: + multiarch logbl implementation for PowerPC32. + +2013-12-06 Adhemerval Zanella + * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile: Add modf and modff multiarch implementations. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_modf-power5+.c: diff --git a/sysdeps/ieee754/ldbl-128ibm/s_logbl.c b/sysdeps/ieee754/ldbl-128ibm/s_logbl.c index e140288..da8d71b 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_logbl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_logbl.c @@ -44,5 +44,6 @@ __logbl (long double x) } return (long double) (rhx - 1023); } - +#ifndef __logbl long_double_symbol (libm, __logbl, logbl); +#endif diff --git a/sysdeps/powerpc/power7/fpu/s_logb.c b/sysdeps/powerpc/power7/fpu/s_logb.c new file mode 100644 index 0000000..da2e6b9 --- /dev/null +++ b/sysdeps/powerpc/power7/fpu/s_logb.c @@ -0,0 +1,78 @@ +/* logb(). PowerPC/POWER7 version. + Copyright (C) 2012-2013 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 + . */ + +#include + +/* This implementation avoids FP to INT conversions by using VSX + bitwise instructions over FP values. */ + +static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */ +static const double two10m1 = -1023.0; /* 2**10 -1 */ + +/* FP mask to extract the exponent. */ +static const union { + unsigned long long mask; + double d; +} mask = { 0x7ff0000000000000ULL }; + +double +__logb (double x) +{ + double ret; + + if (__builtin_expect (x == 0.0, 0)) + /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */ + return -1.0 / __builtin_fabs (x); + + /* ret = x & 0x7ff0000000000000; */ + asm ( + "xxland %x0,%x1,%x2\n" + "fcfid %0,%0" + : "=f" (ret) + : "f" (x), "f" (mask.d)); + /* ret = (ret >> 52) - 1023.0; */ + ret = (ret * two1div52) + two10m1; + if (__builtin_expect (ret > -two10m1, 0)) + /* Multiplication is used to set logb (+-INF) = INF. */ + return (x * x); + else if (__builtin_expect (ret == two10m1, 0)) + { + /* POSIX specifies that denormal numbers are treated as + though they were normalized. */ + int32_t lx, ix; + int ma; + + EXTRACT_WORDS (ix, lx, x); + if (ix == 0) + ma = __builtin_clz (lx) + 32; + else + ma = __builtin_clz (ix); + return (double) (-1023 - (ma - 12)); + } + /* Test to avoid logb_downward (0.0) == -0.0. */ + return ret == -0.0 ? 0.0 : ret; +} +weak_alias (__logb, logb) +#ifdef NO_LONG_DOUBLE +strong_alias (__logb, __logbl) +weak_alias (__logb, logbl) +#endif + +#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0) +compat_symbol (libm, logb, logbl, GLIBC_2_0); +#endif diff --git a/sysdeps/powerpc/power7/fpu/s_logbf.c b/sysdeps/powerpc/power7/fpu/s_logbf.c new file mode 100644 index 0000000..05726f2 --- /dev/null +++ b/sysdeps/powerpc/power7/fpu/s_logbf.c @@ -0,0 +1,60 @@ +/* logbf(). PowerPC/POWER7 version. + Copyright (C) 2012-2013 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 + . */ + +#include "math_private.h" + +/* This implementation avoids FP to INT conversions by using VSX + bitwise instructions over FP values. */ + +static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */ +static const double two10m1 = -1023.0; /* -2**10 + 1 */ +static const double two7m1 = -127.0; /* -2**7 + 1 */ + +/* FP mask to extract the exponent. */ +static const union { + unsigned long long mask; + double d; +} mask = { 0x7ff0000000000000ULL }; + +float +__logbf (float x) +{ + /* VSX operation are all done internally as double. */ + double ret; + + if (__builtin_expect (x == 0.0, 0)) + /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */ + return -1.0 / __builtin_fabsf (x); + + /* ret = x & 0x7f800000; */ + asm ( + "xxland %x0,%x1,%x2\n" + "fcfid %0,%0" + : "=f"(ret) + : "f" (x), "f" (mask.d)); + /* ret = (ret >> 52) - 1023.0, since ret is double. */ + ret = (ret * two1div52) + two10m1; + if (__builtin_expect (ret > -two7m1, 0)) + /* Multiplication is used to set logb (+-INF) = INF. */ + return (x * x); + /* Since operations are done with double we don't need + additional tests for subnormal numbers. + The test is to avoid logb_downward (0.0) == -0.0. */ + return ret == -0.0 ? 0.0 : ret; +} +weak_alias (__logbf, logbf) diff --git a/sysdeps/powerpc/power7/fpu/s_logbl.c b/sysdeps/powerpc/power7/fpu/s_logbl.c new file mode 100644 index 0000000..f5b90d9 --- /dev/null +++ b/sysdeps/powerpc/power7/fpu/s_logbl.c @@ -0,0 +1,71 @@ +/* logbl(). PowerPC/POWER7 version. + Copyright (C) 2012-2013 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 + . */ + +#include +#include +#include + +/* This implementation avoids FP to INT conversions by using VSX + bitwise instructions over FP values. */ + +static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */ +static const double two10m1 = -1023.0; /* 2**10 -1 */ + +/* FP mask to extract the exponent. */ +static const union { + unsigned long long mask; + double d; +} mask = { 0x7ff0000000000000ULL }; + +long double +__logbl (long double x) +{ + double xh; + double ret; + + if (__builtin_expect (x == 0.0L, 0)) + /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */ + return -1.0L / __builtin_fabsl (x); + + xh = ldbl_high (x); + /* ret = x & 0x7ff0000000000000; */ + asm ( + "xxland %x0,%x1,%x2\n" + "fcfid %0,%0" + : "=f" (ret) + : "f" (xh), "f" (mask.d)); + /* ret = (ret >> 52) - 1023.0; */ + ret = (ret * two1div52) + two10m1; + if (__builtin_expect (ret > -two10m1, 0)) + /* Multiplication is used to set logb (+-INF) = INF. */ + return (xh * xh); + else if (__builtin_expect (ret == two10m1, 0)) + { + /* POSIX specifies that denormal number is treated as + though it were normalized. */ + int64_t hx; + + EXTRACT_WORDS64 (hx, xh); + return (long double) (-1023 - (__builtin_clzll (hx) - 12)); + } + /* Test to avoid logb_downward (0.0) == -0.0. */ + return ret == -0.0 ? 0.0 : ret; +} +#ifndef __logbl +long_double_symbol (libm, __logbl, logbl); +#endif diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile index e45c063..7f31f75 100644 --- a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile @@ -22,8 +22,13 @@ libm-sysdep_routines += s_llrintf-power6 s_llrintf-ppc32 s_llrint-power6 \ s_copysign-power6 s_copysign-ppc32 s_lround-power6x \ s_lround-power5+ s_lround-ppc32 s_lrint-power6x \ s_lrint-ppc32 s_modf-power5+ s_modf-ppc32 \ - s_modff-power5+ s_modff-ppc32 + s_modff-power5+ s_modff-ppc32 s_logbl-power7 \ + s_logbl-ppc32 s_logb-power7 s_logb-ppc32 \ + s_logbf-power7 s_logbf-ppc32 CFLAGS-s_modf-power5+.c = -mcpu=power5+ CFLAGS-s_modff-power5+.c = -mcpu=power5+ +CFLAGS-s_logbl-power7.c = -mcpu=power7 +CFLAGS-s_logb-power7.c = -mcpu=power7 +CFLAGS-s_logbf-power7.c = -mcpu=power7 endif diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c new file mode 100644 index 0000000..666c76d --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-power7.c @@ -0,0 +1,31 @@ +/* logb(). PowerPC32/POWER7 version. + Copyright (C) 2013 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 + . */ + +#include +#include + +#undef weak_alias +#define weak_alias(a, b) +#undef strong_alias +#define strong_alias(a, b) +#undef compat_symbol +#define compat_symbol(lib, name, alias, ver) + +#define __logb __logb_power7 + +#include diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-ppc32.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-ppc32.c new file mode 100644 index 0000000..9190ec9 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb-ppc32.c @@ -0,0 +1,28 @@ +/* logb(). PowerPC32/POWER7 version. + Copyright (C) 2013 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 + . */ + +#include + +#undef weak_alias +#define weak_alias(a, b) +#undef strong_alias +#define strong_alias(a, b) + +#define __logb __logb_ppc32 + +#include diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb.c new file mode 100644 index 0000000..c8eaf93 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logb.c @@ -0,0 +1,41 @@ +/* Multiple versions of logb. + Copyright (C) 2013 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 + . */ + +#include +#include +#include +#include "init-arch.h" + +extern __typeof (__logb) __logb_ppc32 attribute_hidden; +extern __typeof (__logb) __logb_power7 attribute_hidden; + +libc_ifunc (__logb, + (hwcap & PPC_FEATURE_ARCH_2_06) + ? __logb_power7 + : __logb_ppc32); + +weak_alias (__logb, logb) + +#ifdef NO_LONG_DOUBLE +strong_alias (__logb, __logbl) +weak_alias (__logb, logbl) +#endif + +#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0) +compat_symbol (libm, logb, logbl, GLIBC_2_0); +#endif diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c new file mode 100644 index 0000000..f454c75 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-power7.c @@ -0,0 +1,26 @@ +/* logbf(). PowerPC32/POWER7 version. + Copyright (C) 2013 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 + . */ + +#include + +#undef weak_alias +#define weak_alias(a, b) + +#define __logbf __logbf_power7 + +#include diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-ppc32.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-ppc32.c new file mode 100644 index 0000000..7d51041 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf-ppc32.c @@ -0,0 +1,26 @@ +/* logbf(). PowerPC32 default implementation. + Copyright (C) 2013 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 + . */ + +#include + +#undef weak_alias +#define weak_alias(a, b) + +#define __logbf __logbf_ppc32 + +#include diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf.c new file mode 100644 index 0000000..cf66af4 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbf.c @@ -0,0 +1,32 @@ +/* Multiple versions of logbf. + Copyright (C) 2013 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 + . */ + +#include +#include +#include +#include "init-arch.h" + +extern __typeof (__logbf) __logbf_ppc32 attribute_hidden; +extern __typeof (__logbf) __logbf_power7 attribute_hidden; + +libc_ifunc (__logbf, + (hwcap & PPC_FEATURE_ARCH_2_06) + ? __logbf_power7 + : __logbf_ppc32); + +weak_alias (__logbf, logbf) diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c new file mode 100644 index 0000000..b5adcd2 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-power7.c @@ -0,0 +1,21 @@ +/* logbl(). PowerPC32/POWER7 version. + Copyright (C) 2013 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 + . */ + +#define __logbl __logbl_power7 + +#include diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-ppc32.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-ppc32.c new file mode 100644 index 0000000..705de9f --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl-ppc32.c @@ -0,0 +1,21 @@ +/* logbl(). PowerPC32/POWER7 version. + Copyright (C) 2013 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 + . */ + +#define __logbl __logbl_ppc32 + +#include diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl.c b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl.c new file mode 100644 index 0000000..acc6700 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_logbl.c @@ -0,0 +1,32 @@ +/* Multiple versions of logbl. + Copyright (C) 2013 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 + . */ + +#include +#include +#include +#include "init-arch.h" + +extern __typeof (__logbl) __logbl_ppc32 attribute_hidden; +extern __typeof (__logbl) __logbl_power7 attribute_hidden; + +libc_ifunc (__logbl, + (hwcap & PPC_FEATURE_ARCH_2_06) + ? __logbl_power7 + : __logbl_ppc32); + +long_double_symbol (libm, __logbl, logbl); diff --git a/sysdeps/powerpc/powerpc32/power7/fpu/s_logb.c b/sysdeps/powerpc/powerpc32/power7/fpu/s_logb.c deleted file mode 100644 index da2e6b9..0000000 --- a/sysdeps/powerpc/powerpc32/power7/fpu/s_logb.c +++ /dev/null @@ -1,78 +0,0 @@ -/* logb(). PowerPC/POWER7 version. - Copyright (C) 2012-2013 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 - . */ - -#include - -/* This implementation avoids FP to INT conversions by using VSX - bitwise instructions over FP values. */ - -static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */ -static const double two10m1 = -1023.0; /* 2**10 -1 */ - -/* FP mask to extract the exponent. */ -static const union { - unsigned long long mask; - double d; -} mask = { 0x7ff0000000000000ULL }; - -double -__logb (double x) -{ - double ret; - - if (__builtin_expect (x == 0.0, 0)) - /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */ - return -1.0 / __builtin_fabs (x); - - /* ret = x & 0x7ff0000000000000; */ - asm ( - "xxland %x0,%x1,%x2\n" - "fcfid %0,%0" - : "=f" (ret) - : "f" (x), "f" (mask.d)); - /* ret = (ret >> 52) - 1023.0; */ - ret = (ret * two1div52) + two10m1; - if (__builtin_expect (ret > -two10m1, 0)) - /* Multiplication is used to set logb (+-INF) = INF. */ - return (x * x); - else if (__builtin_expect (ret == two10m1, 0)) - { - /* POSIX specifies that denormal numbers are treated as - though they were normalized. */ - int32_t lx, ix; - int ma; - - EXTRACT_WORDS (ix, lx, x); - if (ix == 0) - ma = __builtin_clz (lx) + 32; - else - ma = __builtin_clz (ix); - return (double) (-1023 - (ma - 12)); - } - /* Test to avoid logb_downward (0.0) == -0.0. */ - return ret == -0.0 ? 0.0 : ret; -} -weak_alias (__logb, logb) -#ifdef NO_LONG_DOUBLE -strong_alias (__logb, __logbl) -weak_alias (__logb, logbl) -#endif - -#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0) -compat_symbol (libm, logb, logbl, GLIBC_2_0); -#endif diff --git a/sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c b/sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c deleted file mode 100644 index 05726f2..0000000 --- a/sysdeps/powerpc/powerpc32/power7/fpu/s_logbf.c +++ /dev/null @@ -1,60 +0,0 @@ -/* logbf(). PowerPC/POWER7 version. - Copyright (C) 2012-2013 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 - . */ - -#include "math_private.h" - -/* This implementation avoids FP to INT conversions by using VSX - bitwise instructions over FP values. */ - -static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */ -static const double two10m1 = -1023.0; /* -2**10 + 1 */ -static const double two7m1 = -127.0; /* -2**7 + 1 */ - -/* FP mask to extract the exponent. */ -static const union { - unsigned long long mask; - double d; -} mask = { 0x7ff0000000000000ULL }; - -float -__logbf (float x) -{ - /* VSX operation are all done internally as double. */ - double ret; - - if (__builtin_expect (x == 0.0, 0)) - /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */ - return -1.0 / __builtin_fabsf (x); - - /* ret = x & 0x7f800000; */ - asm ( - "xxland %x0,%x1,%x2\n" - "fcfid %0,%0" - : "=f"(ret) - : "f" (x), "f" (mask.d)); - /* ret = (ret >> 52) - 1023.0, since ret is double. */ - ret = (ret * two1div52) + two10m1; - if (__builtin_expect (ret > -two7m1, 0)) - /* Multiplication is used to set logb (+-INF) = INF. */ - return (x * x); - /* Since operations are done with double we don't need - additional tests for subnormal numbers. - The test is to avoid logb_downward (0.0) == -0.0. */ - return ret == -0.0 ? 0.0 : ret; -} -weak_alias (__logbf, logbf) diff --git a/sysdeps/powerpc/powerpc32/power7/fpu/s_logbl.c b/sysdeps/powerpc/powerpc32/power7/fpu/s_logbl.c deleted file mode 100644 index 1c82577..0000000 --- a/sysdeps/powerpc/powerpc32/power7/fpu/s_logbl.c +++ /dev/null @@ -1,70 +0,0 @@ -/* logbl(). PowerPC/POWER7 version. - Copyright (C) 2012-2013 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 - . */ - -#include -#include -#include - -/* This implementation avoids FP to INT conversions by using VSX - bitwise instructions over FP values. */ - -static const double two1div52 = 2.220446049250313e-16; /* 1/2**52 */ -static const double two10m1 = -1023.0; /* 2**10 -1 */ - -/* FP mask to extract the exponent. */ -static const union { - unsigned long long mask; - double d; -} mask = { 0x7ff0000000000000ULL }; - -long double -__logbl (long double x) -{ - double xh; - double ret; - - if (__builtin_expect (x == 0.0L, 0)) - /* Raise FE_DIVBYZERO and return -HUGE_VAL[LF]. */ - return -1.0L / __builtin_fabsl (x); - - xh = ldbl_high (x); - /* ret = x & 0x7ff0000000000000; */ - asm ( - "xxland %x0,%x1,%x2\n" - "fcfid %0,%0" - : "=f" (ret) - : "f" (xh), "f" (mask.d)); - /* ret = (ret >> 52) - 1023.0; */ - ret = (ret * two1div52) + two10m1; - if (__builtin_expect (ret > -two10m1, 0)) - /* Multiplication is used to set logb (+-INF) = INF. */ - return (xh * xh); - else if (__builtin_expect (ret == two10m1, 0)) - { - /* POSIX specifies that denormal number is treated as - though it were normalized. */ - int64_t hx; - - EXTRACT_WORDS64 (hx, xh); - return (long double) (-1023 - (__builtin_clzll (hx) - 12)); - } - /* Test to avoid logb_downward (0.0) == -0.0. */ - return ret == -0.0 ? 0.0 : ret; -} - -long_double_symbol (libm, __logbl, logbl); diff --git a/sysdeps/powerpc/powerpc64/power7/fpu/s_logb.c b/sysdeps/powerpc/powerpc64/power7/fpu/s_logb.c index ff3a9e0..2599c771d 100644 --- a/sysdeps/powerpc/powerpc64/power7/fpu/s_logb.c +++ b/sysdeps/powerpc/powerpc64/power7/fpu/s_logb.c @@ -1 +1 @@ -#include +#include diff --git a/sysdeps/powerpc/powerpc64/power7/fpu/s_logbf.c b/sysdeps/powerpc/powerpc64/power7/fpu/s_logbf.c index e79a28f..7a5a803 100644 --- a/sysdeps/powerpc/powerpc64/power7/fpu/s_logbf.c +++ b/sysdeps/powerpc/powerpc64/power7/fpu/s_logbf.c @@ -1 +1 @@ -#include +#include diff --git a/sysdeps/powerpc/powerpc64/power7/fpu/s_logbl.c b/sysdeps/powerpc/powerpc64/power7/fpu/s_logbl.c index 463e411..524ae2c 100644 --- a/sysdeps/powerpc/powerpc64/power7/fpu/s_logbl.c +++ b/sysdeps/powerpc/powerpc64/power7/fpu/s_logbl.c @@ -1 +1 @@ -#include +#include -- cgit v1.1