diff options
Diffstat (limited to 'sysdeps')
18 files changed, 345 insertions, 0 deletions
diff --git a/sysdeps/generic/math-tests.h b/sysdeps/generic/math-tests.h index 76f738ee99..da8747a944 100644 --- a/sysdeps/generic/math-tests.h +++ b/sysdeps/generic/math-tests.h @@ -34,3 +34,9 @@ (sizeof (x) == sizeof (float) ? SNAN_TESTS_float \ : sizeof (x) == sizeof (double) ? SNAN_TESTS_double \ : SNAN_TESTS_long_double) + +/* Indicate whether to run tests involving type casts of sNaN values. These + are run unless overridden. */ +#ifndef SNAN_TESTS_TYPE_CAST +# define SNAN_TESTS_TYPE_CAST 1 +#endif diff --git a/sysdeps/ieee754/dbl-64/s_issignaling.c b/sysdeps/ieee754/dbl-64/s_issignaling.c new file mode 100644 index 0000000000..f475bc7bdf --- /dev/null +++ b/sysdeps/ieee754/dbl-64/s_issignaling.c @@ -0,0 +1,46 @@ +/* Test for signaling NaN. + 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 + <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> + +int +__issignaling (double x) +{ +#ifdef HIGH_ORDER_BIT_IS_SET_FOR_SNAN + u_int32_t hxi; + GET_HIGH_WORD (hxi, x); + /* We only have to care about the high-order bit of x's significand, because + having it set (sNaN) already makes the significand different from that + used to designate infinity. */ + return (hxi & 0x7ff80000) == 0x7ff80000; +#else + u_int32_t hxi, lxi; + EXTRACT_WORDS (hxi, lxi, x); + /* To keep the following comparison simple, toggle the quiet/signaling bit, + so that it is set for sNaNs. This is inverse to IEEE 754-2008 (as well as + common practice for IEEE 754-1985). */ + hxi ^= 0x00080000; + /* If lxi != 0, then set any suitable bit of the significand in hxi. */ + hxi |= (lxi | -lxi) >> 31; + /* We have to compare for greater (instead of greater or equal), because x's + significand being all-zero designates infinity not NaN. */ + return (hxi & 0x7fffffff) > 0x7ff80000; +#endif +} +libm_hidden_def (__issignaling) diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_issignaling.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_issignaling.c new file mode 100644 index 0000000000..3fa0254374 --- /dev/null +++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_issignaling.c @@ -0,0 +1,43 @@ +/* Test for signaling NaN. + 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 + <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> + +int +__issignaling (double x) +{ + u_int64_t xi; + EXTRACT_WORDS64 (xi, x); +#ifdef HIGH_ORDER_BIT_IS_SET_FOR_SNAN +# error untested + /* We only have to care about the high-order bit of x's significand, because + having it set (sNaN) already makes the significand different from that + used to designate infinity. */ + return (xi & UINT64_C (0x7ff8000000000000)) == UINT64_C (0x7ff8000000000000); +#else + /* To keep the following comparison simple, toggle the quiet/signaling bit, + so that it is set for sNaNs. This is inverse to IEEE 754-2008 (as well as + common practice for IEEE 754-1985). */ + xi ^= UINT64_C (0x0008000000000000); + /* We have to compare for greater (instead of greater or equal), because x's + significand being all-zero designates infinity not NaN. */ + return (xi & UINT64_C (0x7fffffffffffffff)) > UINT64_C (0x7ff8000000000000); +#endif +} +libm_hidden_def (__issignaling) diff --git a/sysdeps/ieee754/flt-32/s_issignalingf.c b/sysdeps/ieee754/flt-32/s_issignalingf.c new file mode 100644 index 0000000000..59a189252e --- /dev/null +++ b/sysdeps/ieee754/flt-32/s_issignalingf.c @@ -0,0 +1,42 @@ +/* Test for signaling NaN. + 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 + <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> + +int +__issignalingf (float x) +{ + u_int32_t xi; + GET_FLOAT_WORD (xi, x); +#ifdef HIGH_ORDER_BIT_IS_SET_FOR_SNAN + /* We only have to care about the high-order bit of x's significand, because + having it set (sNaN) already makes the significand different from that + used to designate infinity. */ + return (xi & 0x7fc00000) == 0x7fc00000; +#else + /* To keep the following comparison simple, toggle the quiet/signaling bit, + so that it is set for sNaNs. This is inverse to IEEE 754-2008 (as well as + common practice for IEEE 754-1985). */ + xi ^= 0x00400000; + /* We have to compare for greater (instead of greater or equal), because x's + significand being all-zero designates infinity not NaN. */ + return (xi & 0x7fffffff) > 0x7fc00000; +#endif +} +libm_hidden_def (__issignalingf) diff --git a/sysdeps/ieee754/ldbl-128/s_issignalingl.c b/sysdeps/ieee754/ldbl-128/s_issignalingl.c new file mode 100644 index 0000000000..b69a66d0ba --- /dev/null +++ b/sysdeps/ieee754/ldbl-128/s_issignalingl.c @@ -0,0 +1,45 @@ +/* Test for signaling NaN. + 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 + <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> + +int +__issignalingl (long double x) +{ + u_int64_t hxi, lxi __attribute__ ((unused)); + GET_LDOUBLE_WORDS64 (hxi, lxi, x); +#ifdef HIGH_ORDER_BIT_IS_SET_FOR_SNAN + /* We only have to care about the high-order bit of x's significand, because + having it set (sNaN) already makes the significand different from that + used to designate infinity. */ + return ((hxi & UINT64_C (0x7fff800000000000)) + == UINT64_C (0x7fff800000000000)); +#else + /* To keep the following comparison simple, toggle the quiet/signaling bit, + so that it is set for sNaNs. This is inverse to IEEE 754-2008 (as well as + common practice for IEEE 754-1985). */ + hxi ^= UINT64_C (0x0000800000000000); + /* If lxi != 0, then set any suitable bit of the significand in hxi. */ + hxi |= (lxi | -lxi) >> 63; + /* We have to compare for greater (instead of greater or equal), because x's + significand being all-zero designates infinity not NaN. */ + return (hxi & UINT64_C (0x7fffffffffffffff)) > UINT64_C (0x7fff800000000000); +#endif +} +libm_hidden_def (__issignalingl) diff --git a/sysdeps/ieee754/ldbl-128ibm/s_issignalingl.c b/sysdeps/ieee754/ldbl-128ibm/s_issignalingl.c new file mode 100644 index 0000000000..96fab1aff1 --- /dev/null +++ b/sysdeps/ieee754/ldbl-128ibm/s_issignalingl.c @@ -0,0 +1,45 @@ +/* Test for signaling NaN. + 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 + <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> + +int +__issignalingl (long double x) +{ + u_int64_t xi; + /* For inspecting NaN status, we only have to look at the first of the pair + of IEEE 754 64-bit precision numbers. */ + GET_LDOUBLE_MSW64 (xi, x); +#ifdef HIGH_ORDER_BIT_IS_SET_FOR_SNAN +# error untested + /* We only have to care about the high-order bit of x's significand, because + having it set (sNaN) already makes the significand different from that + used to designate infinity. */ + return (xi & UINT64_C (0x7ff8000000000000)) == UINT64_C (0x7ff8000000000000); +#else + /* To keep the following comparison simple, toggle the quiet/signaling bit, + so that it is set for sNaNs. This is inverse to IEEE 754-2008 (as well as + common practice for IEEE 754-1985). */ + xi ^= UINT64_C (0x0008000000000000); + /* We have to compare for greater (instead of greater or equal), because x's + significand being all-zero designates infinity not NaN. */ + return (xi & UINT64_C (0x7fffffffffffffff)) > UINT64_C (0x7ff8000000000000); +#endif +} +libm_hidden_def (__issignalingl) diff --git a/sysdeps/ieee754/ldbl-96/s_issignalingl.c b/sysdeps/ieee754/ldbl-96/s_issignalingl.c new file mode 100644 index 0000000000..107aff1516 --- /dev/null +++ b/sysdeps/ieee754/ldbl-96/s_issignalingl.c @@ -0,0 +1,43 @@ +/* Test for signaling NaN. + 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 + <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> + +int +__issignalingl (long double x) +{ + u_int32_t exi, hxi, lxi; + GET_LDOUBLE_WORDS (exi, hxi, lxi, x); +#ifdef HIGH_ORDER_BIT_IS_SET_FOR_SNAN +# error not implemented +#else + /* To keep the following comparison simple, toggle the quiet/signaling bit, + so that it is set for sNaNs. This is inverse to IEEE 754-2008 (as well as + common practice for IEEE 754-1985). */ + hxi ^= 0x40000000; + /* If lxi != 0, then set any suitable bit of the significand in hxi. */ + hxi |= (lxi | -lxi) >> 31; + /* We do not recognize a pseudo NaN as sNaN; they're invalid on 80387 and + later. */ + /* We have to compare for greater (instead of greater or equal), because x's + significand being all-zero designates infinity not NaN. */ + return ((exi & 0x7fff) == 0x7fff) && (hxi > 0xc0000000); +#endif +} +libm_hidden_def (__issignalingl) diff --git a/sysdeps/powerpc/math-tests.h b/sysdeps/powerpc/math-tests.h new file mode 100644 index 0000000000..0f09610eea --- /dev/null +++ b/sysdeps/powerpc/math-tests.h @@ -0,0 +1,26 @@ +/* Configuration for math tests. PowerPC 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 + <http://www.gnu.org/licenses/>. */ + +/* On PowerPC, in versions of GCC up to at least 4.7.2, a type cast -- which is + a IEEE 754-2008 general-computational convertFormat operation (IEEE + 754-2008, 5.4.2) -- does not turn a sNaN into a qNaN (whilst raising an + INVALID exception), which is contrary to IEEE 754-2008 5.1 and 7.2. This + renders certain tests infeasible in this scenario. */ +#define SNAN_TESTS_TYPE_CAST 0 + +#include_next <math-tests.h> diff --git a/sysdeps/unix/sysv/linux/i386/nptl/libm.abilist b/sysdeps/unix/sysv/linux/i386/nptl/libm.abilist index 401a2c6ddf..c185f0b205 100644 --- a/sysdeps/unix/sysv/linux/i386/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/i386/nptl/libm.abilist @@ -396,6 +396,11 @@ GLIBC_2.15 __yn_finite F __ynf_finite F __ynl_finite F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F + __issignalingl F GLIBC_2.2 GLIBC_2.2 A __expl F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libm.abilist index 620aff9e94..76a4ba31db 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libm.abilist @@ -397,6 +397,11 @@ GLIBC_2.15 __yn_finite F __ynf_finite F __ynl_finite F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F + __issignalingl F GLIBC_2.2 GLIBC_2.2 A feclearexcept F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libm.abilist index 89422ab9f4..d309a6fa1a 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libm.abilist @@ -81,6 +81,11 @@ GLIBC_2.15 __yn_finite F __ynf_finite F __ynl_finite F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F + __issignalingl F GLIBC_2.3 GLIBC_2.3 A _LIB_VERSION D 0x4 diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libm.abilist index ae8af50eb8..f836c90d94 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libm.abilist @@ -393,6 +393,11 @@ GLIBC_2.15 __yn_finite F __ynf_finite F __ynl_finite F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F + __issignalingl F GLIBC_2.2 GLIBC_2.2 A fedisableexcept F diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libm.abilist index acf4d68514..a0891ad252 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libm.abilist @@ -81,6 +81,11 @@ GLIBC_2.15 __yn_finite F __ynf_finite F __ynl_finite F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F + __issignalingl F GLIBC_2.2 GLIBC_2.2 A _LIB_VERSION D 0x4 diff --git a/sysdeps/unix/sysv/linux/sh/nptl/libm.abilist b/sysdeps/unix/sysv/linux/sh/nptl/libm.abilist index d85192910f..92821fdbb9 100644 --- a/sysdeps/unix/sysv/linux/sh/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/sh/nptl/libm.abilist @@ -54,6 +54,10 @@ GLIBC_2.15 __y1f_finite F __yn_finite F __ynf_finite F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F GLIBC_2.2 GLIBC_2.2 A _LIB_VERSION D 0x4 diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libm.abilist index 4c6ec6b712..9a1fcb1b46 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libm.abilist @@ -388,6 +388,11 @@ GLIBC_2.15 __yn_finite F __ynf_finite F __ynl_finite F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F + __issignalingl F GLIBC_2.2 GLIBC_2.2 A feclearexcept F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libm.abilist index 22fb92aec5..2b41d34225 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libm.abilist @@ -81,6 +81,11 @@ GLIBC_2.15 __yn_finite F __ynf_finite F __ynl_finite F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F + __issignalingl F GLIBC_2.2 GLIBC_2.2 A _LIB_VERSION D 0x4 diff --git a/sysdeps/unix/sysv/linux/x86_64/64/nptl/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/nptl/libm.abilist index 7bf568c51c..2390934678 100644 --- a/sysdeps/unix/sysv/linux/x86_64/64/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/64/nptl/libm.abilist @@ -81,6 +81,11 @@ GLIBC_2.15 __yn_finite F __ynf_finite F __ynl_finite F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F + __issignalingl F GLIBC_2.2.5 GLIBC_2.2.5 A _LIB_VERSION D 0x4 diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libm.abilist index 0f3ea4ba40..1825adb1b3 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libm.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libm.abilist @@ -395,3 +395,8 @@ GLIBC_2.16 yn F ynf F ynl F +GLIBC_2.18 + GLIBC_2.18 A + __issignaling F + __issignalingf F + __issignalingl F |