diff options
| -rw-r--r-- | sysdeps/s390/fpu/s_roundeven.c | 39 | ||||
| -rw-r--r-- | sysdeps/s390/fpu/s_roundevenf.c | 38 | ||||
| -rw-r--r-- | sysdeps/s390/fpu/s_roundevenl.c | 39 |
3 files changed, 116 insertions, 0 deletions
diff --git a/sysdeps/s390/fpu/s_roundeven.c b/sysdeps/s390/fpu/s_roundeven.c new file mode 100644 index 0000000000..95a83a70e8 --- /dev/null +++ b/sysdeps/s390/fpu/s_roundeven.c @@ -0,0 +1,39 @@ +/* roundeven() - S390 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 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 + <https://www.gnu.org/licenses/>. */ + +#ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT +# include <math.h> +# include <libm-alias-double.h> + +double +__roundeven (double x) +{ + double y; + /* The z196 zarch "load fp integer" (fidbra) instruction is rounding + x to the nearest integer with "ties to even" rounding mode + (M3-field: 4) where inexact exceptions are suppressed (M4-field: 4). */ + __asm__ ("fidbra %0,4,%1,4" : "=f" (y) : "f" (x)); + return y; +} +hidden_def (__roundeven) +libm_alias_double (__roundeven, roundeven) + +#else +# include <sysdeps/ieee754/dbl-64/s_roundeven.c> +#endif diff --git a/sysdeps/s390/fpu/s_roundevenf.c b/sysdeps/s390/fpu/s_roundevenf.c new file mode 100644 index 0000000000..c620a0189c --- /dev/null +++ b/sysdeps/s390/fpu/s_roundevenf.c @@ -0,0 +1,38 @@ +/* roundevenf() - S390 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 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 + <https://www.gnu.org/licenses/>. */ + +#ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT +# include <math.h> +# include <libm-alias-float.h> + +float +__roundevenf (float x) +{ + float y; + /* The z196 zarch "load fp integer" (fiebra) instruction is rounding + x to the nearest integer with "ties to even" rounding mode + (M3-field: 4) where inexact exceptions are suppressed (M4-field: 4). */ + __asm__ ("fiebra %0,4,%1,4" : "=f" (y) : "f" (x)); + return y; +} +libm_alias_float (__roundeven, roundeven) + +#else +# include <sysdeps/ieee754/flt-32/s_roundevenf.c> +#endif diff --git a/sysdeps/s390/fpu/s_roundevenl.c b/sysdeps/s390/fpu/s_roundevenl.c new file mode 100644 index 0000000000..3481af2665 --- /dev/null +++ b/sysdeps/s390/fpu/s_roundevenl.c @@ -0,0 +1,39 @@ +/* roundevenl() - S390 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 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 + <https://www.gnu.org/licenses/>. */ + +#ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT +# include <math.h> +# include <math_private.h> +# include <libm-alias-ldouble.h> + +_Float128 +__roundevenl (_Float128 x) +{ + _Float128 y; + /* The z196 zarch "load fp integer" (fixbra) instruction is rounding + x to the nearest integer with "ties to even" rounding mode + (M3-field: 4) where inexact exceptions are suppressed (M4-field: 4). */ + __asm__ ("fixbra %0,4,%1,4" : "=f" (y) : "f" (x)); + return y; +} +libm_alias_ldouble (__roundeven, roundeven) + +#else +# include <sysdeps/ieee754/ldbl-128/s_roundevenl.c> +#endif |