diff options
| -rw-r--r-- | sysdeps/s390/fpu/s_llrint.c | 50 | ||||
| -rw-r--r-- | sysdeps/s390/fpu/s_llrintf.c | 50 | ||||
| -rw-r--r-- | sysdeps/s390/fpu/s_llrintl.c | 51 |
3 files changed, 151 insertions, 0 deletions
diff --git a/sysdeps/s390/fpu/s_llrint.c b/sysdeps/s390/fpu/s_llrint.c new file mode 100644 index 0000000..edd796a --- /dev/null +++ b/sysdeps/s390/fpu/s_llrint.c @@ -0,0 +1,50 @@ +/* llrint() - 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/>. */ + +#if defined __s390x__ && defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT +/* We only support s390x as on s390 a long long int refers to a register pair + of two 4byte registers instead of a 8byte register which is produced by the + instruction. + Note: On s390 this instruction would only be used if build with -mzarch. */ +# include <math.h> +# include <libm-alias-double.h> + +long long int +__llrint (double x) +{ + long long int y; + /* The z196 zarch "convert to fixed" (cgdbra) instruction is rounding + according to current rounding mode (M3-field: 0). + First convert x with suppressed inexact exception and check if the + resulting value is beyond the target limits (indicated by cc=3; + Note: a nan is also indicated by cc=3). + If the resulting value is within the target limits, redo + without suppressing the inexact exception. */ + __asm__ ("cgdbra %0,0,%1,4 \n\t" + "jo 1f \n\t" + "cgdbra %0,0,%1,0 \n\t" + "1:" + : "=&d" (y) : "f" (x) : "cc"); + return y; +} +libm_alias_double (__llrint, llrint) + +#else +# include <sysdeps/ieee754/dbl-64/s_llrint.c> +#endif diff --git a/sysdeps/s390/fpu/s_llrintf.c b/sysdeps/s390/fpu/s_llrintf.c new file mode 100644 index 0000000..3cbe7c5 --- /dev/null +++ b/sysdeps/s390/fpu/s_llrintf.c @@ -0,0 +1,50 @@ +/* llrintf() - 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/>. */ + +#if defined __s390x__ && defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT +/* We only support s390x as on s390 a long long int refers to a register pair + of two 4byte registers instead of a 8byte register which is produced by the + instruction. + Note: On s390 this instruction would only be used if build with -mzarch. */ +# include <math.h> +# include <libm-alias-float.h> + +long long int +__llrintf (float x) +{ + long long int y; + /* The z196 zarch "convert to fixed" (cgebra) instruction is rounding + according to current rounding mode (M3-field: 0). + First convert x with suppressed inexact exception and check if the + resulting value is beyond the target limits (indicated by cc=3; + Note: a nan is also indicated by cc=3). + If the resulting value is within the target limits, redo + without suppressing the inexact exception. */ + __asm__ ("cgebra %0,0,%1,4 \n\t" + "jo 1f \n\t" + "cgebra %0,0,%1,0 \n\t" + "1:" + : "=&d" (y) : "f" (x) : "cc"); + return y; +} +libm_alias_float (__llrint, llrint) + +#else +# include <sysdeps/ieee754/flt-32/s_llrintf.c> +#endif diff --git a/sysdeps/s390/fpu/s_llrintl.c b/sysdeps/s390/fpu/s_llrintl.c new file mode 100644 index 0000000..37eea59 --- /dev/null +++ b/sysdeps/s390/fpu/s_llrintl.c @@ -0,0 +1,51 @@ +/* llrintl() - 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/>. */ + +#if defined __s390x__ && defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT +/* We only support s390x as on s390 a long long int refers to a register pair + of two 4byte registers instead of a 8byte register which is produced by the + instruction. + Note: On s390 this instruction would only be used if build with -mzarch. */ +# include <math.h> +# include <math_private.h> +# include <libm-alias-ldouble.h> + +long long int +__llrintl (_Float128 x) +{ + long long int y; + /* The z196 zarch "convert to fixed" (cgxbra) instruction is rounding + according to current rounding mode (M3-field: 0). + First convert x with suppressed inexact exception and check if the + resulting value is beyond the target limits (indicated by cc=3; + Note: a nan is also indicated by cc=3). + If the resulting value is within the target limits, redo + without suppressing the inexact exception. */ + __asm__ ("cgxbra %0,0,%1,4 \n\t" + "jo 1f \n\t" + "cgxbra %0,0,%1,0 \n\t" + "1:" + : "=&d" (y) : "f" (x) : "cc"); + return y; +} +libm_alias_ldouble (__llrint, llrint) + +#else +# include <sysdeps/ieee754/ldbl-128/s_llrintl.c> +#endif |