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powerpc: generic nearbyint/nearbyintf
This patches consolidates all the powerpc nearbyint{f} implementations
on the generic sysdeps/powerpc/fpu/s_nearbyint{f}.
* sysdeps/powerpc/fpu/round_to_integer.h (set_fenv_mode): Add
NEARBYINT handling.
* sysdeps/powerpc/fpu/s_nearbyint.c: New file.
* sysdeps/powerpc/fpu/s_nearbyintf.c: Likewise.
* sysdeps/powerpc/powerpc32/fpu/s_nearbyint.S: Remove file.
* sysdeps/powerpc/powerpc32/fpu/s_nearbyintf.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_nearbyint.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_nearbyintf.S: Likewise.
This commit is contained in:
Adhemerval Zanella
parent
157cda1ff0
commit
e47308c98d
11
ChangeLog
11
ChangeLog
@ -1,3 +1,14 @@
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2019-05-28 Adhemerval Zanella <adhemerval.zanella@linaro.org>
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* sysdeps/powerpc/fpu/round_to_integer.h (set_fenv_mode): Add
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NEARBYINT handling.
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* sysdeps/powerpc/fpu/s_nearbyint.c: New file.
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* sysdeps/powerpc/fpu/s_nearbyintf.c: Likewise.
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* sysdeps/powerpc/powerpc32/fpu/s_nearbyint.S: Remove file.
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* sysdeps/powerpc/powerpc32/fpu/s_nearbyintf.S: Likewise.
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* sysdeps/powerpc/powerpc64/fpu/s_nearbyint.S: Likewise.
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* sysdeps/powerpc/powerpc64/fpu/s_nearbyintf.S: Likewise.
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2019-05-28 mansayk <6688000@gmail.com>
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[BZ #24370]
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@ -26,22 +26,30 @@ enum round_mode
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CEIL,
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FLOOR,
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ROUND,
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TRUNC
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TRUNC,
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NEARBYINT
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};
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static inline void
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set_fenv_mode (enum round_mode mode)
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{
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int rmode;
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switch (mode)
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{
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case CEIL: rmode = FE_UPWARD; break;
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case FLOOR: rmode = FE_DOWNWARD; break;
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case CEIL:
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__fesetround_inline_nocheck (FE_UPWARD);
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break;
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case FLOOR:
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__fesetround_inline_nocheck (FE_DOWNWARD);
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break;
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case TRUNC:
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case ROUND: rmode = FE_TOWARDZERO; break;
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default: rmode = FE_TONEAREST; break;
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case ROUND:
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__fesetround_inline_nocheck (FE_TOWARDZERO);
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break;
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case NEARBYINT:
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/* Disable FE_INEXACT exception */
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reset_fpscr_bit (FPSCR_XE);
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break;
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}
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__fesetround_inline_nocheck (rmode);
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}
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static inline float
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30
sysdeps/powerpc/fpu/s_nearbyint.c
Normal file
30
sysdeps/powerpc/fpu/s_nearbyint.c
Normal file
@ -0,0 +1,30 @@
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/* Largest integral value not greater than argument. PowerPC version.
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Copyright (C) 2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, see <http://www.gnu.org/licenses/>. */
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#define NO_MATH_REDIRECT
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#include <math.h>
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#include <fenv_private.h>
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#include <libm-alias-double.h>
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#include <round_to_integer.h>
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double
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__nearbyint (double x)
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{
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return round_to_integer_double (NEARBYINT, x);
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}
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libm_alias_double (__nearbyint, nearbyint)
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30
sysdeps/powerpc/fpu/s_nearbyintf.c
Normal file
30
sysdeps/powerpc/fpu/s_nearbyintf.c
Normal file
@ -0,0 +1,30 @@
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/* Smallest integral value not less than argument. PowerPC version.
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Copyright (C) 2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, see <http://www.gnu.org/licenses/>. */
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#define NO_MATH_REDIRECT
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#include <math.h>
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#include <fenv_private.h>
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#include <libm-alias-float.h>
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#include <round_to_integer.h>
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float
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__nearbyintf (float x)
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{
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return round_to_integer_float (NEARBYINT, x);
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}
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libm_alias_float (__nearbyint, nearbyint)
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@ -1,80 +0,0 @@
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/* Round to int floating-point values. PowerPC32 version.
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Copyright (C) 2011-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Adhemerval Zanella <azanella@br.ibm.com>, 2011
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* This has been coded in assembler because GCC makes such a mess of it
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when it's coded in C. */
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#include <sysdep.h>
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#include <math_ldbl_opt.h>
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#include <libm-alias-double.h>
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/* double [fp1] nearbyint(double [fp1] x) */
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.section .rodata.cst4,"aM",@progbits,4
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.align 2
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.LC0: /* 2**52 */
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.long 0x59800000 /* TWO52: 2**52 */
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.section ".text"
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ENTRY (__nearbyint)
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#ifdef SHARED
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mflr r11
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cfi_register(lr,r11)
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bcl 20,31,1f
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1: mflr r9
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addis r9,r9,.LC0-1b@ha
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lfs fp13,.LC0-1b@l(r9)
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mtlr r11
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cfi_same_value (lr)
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#else
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lis r9,.LC0@ha
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lfs fp13,.LC0@l(r9)
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#endif
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fabs fp0,fp1
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fsub fp12,fp13,fp13 /* generate 0.0 */
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fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52 */
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bge cr7,.L10
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fcmpu cr7,fp1,fp12 /* if (x > 0.0 */
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ble cr7,L(lessthanzero)
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mffs fp11
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mtfsb0 4*cr7+lt /* Disable FE_INEXACT exception */
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fadd fp1,fp1,fp13 /* x += TWO52 */
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fsub fp1,fp1,fp13 /* x -= TWO52 */
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fabs fp1,fp1 /* if (x == 0.0 */
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mtfsf 0xff,fp11 /* Restore FE_INEXACT state. */
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blr
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L(lessthanzero):
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bgelr cr7
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mffs fp11
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mtfsb0 4*cr7+lt /* Disable FE_INEXACT exception */
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fsub fp1,fp1,fp13 /* x -= TWO52 */
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fadd fp1,fp1,fp13 /* x += TWO52 */
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fnabs fp1,fp1 /* if (x == 0.0) */
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mtfsf 0xff,fp11 /* Restore FE_INEXACT state. */
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blr
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.L10:
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/* Ensure sNaN input is converted to qNaN. */
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fcmpu cr7,fp1,fp1
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beqlr cr7
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fadd fp1,fp1,fp1
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blr
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END (__nearbyint)
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libm_alias_double (__nearbyint, nearbyint)
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@ -1,79 +0,0 @@
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/* Round to int floating-point values. PowerPC32 version.
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Copyright (C) 2011-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Adhemerval Zanella <azanella@br.ibm.com>, 2011
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* This has been coded in assembler because GCC makes such a mess of it
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when it's coded in C. */
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#include <sysdep.h>
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#include <libm-alias-float.h>
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/* float [fp1] nearbyintf(float [fp1] x) */
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.section .rodata.cst4,"aM",@progbits,4
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.align 2
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.LC0:
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.long 0x4B000000 /* TWO23: 2**23 */
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.section ".text"
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ENTRY (__nearbyintf)
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#ifdef SHARED
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mflr r11
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cfi_register(lr,r11)
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bcl 20,31,1f
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1: mflr r9
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addis r9,r9,.LC0-1b@ha
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lfs fp13,.LC0-1b@l(r9)
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mtlr r11
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cfi_same_value (lr)
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#else
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lis r9,.LC0@ha
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lfs fp13,.LC0@l(r9)
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#endif
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fabs fp0,fp1
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fsub fp12,fp13,fp13 /* generate 0.0 */
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fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO23 */
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bge cr7,.L10
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fcmpu cr7,fp1,fp12 /* if (x > 0.0 */
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ble cr7,L(lessthanzero)
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mffs fp11
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mtfsb0 4*cr7+lt /* Disable FE_INEXACT exception */
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fadds fp1,fp1,fp13 /* x += TWO23 */
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fsubs fp1,fp1,fp13 /* x -= TWO23 */
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fabs fp1,fp1 /* if (x == 0.0) */
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mtfsf 0xff,fp11 /* Restore FE_INEXACT state. */
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blr
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L(lessthanzero):
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bgelr cr7
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mffs fp11
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mtfsb0 4*cr7+lt /* Disable FE_INEXACT exception */
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fsubs fp1,fp1,fp13 /* x -= TWO23 */
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fadds fp1,fp1,fp13 /* x += TWO23 */
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fnabs fp1,fp1 /* if (x == 0.0) */
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mtfsf 0xff,fp11 /* Restore FE_INEXACT state. */
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blr
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.L10:
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/* Ensure sNaN input is converted to qNaN. */
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fcmpu cr7,fp1,fp1
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beqlr cr7
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fadds fp1,fp1,fp1
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blr
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END (__nearbyintf)
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libm_alias_float (__nearbyint, nearbyint)
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@ -1,68 +0,0 @@
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/* Round to int floating-point values. PowerPC64 version.
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Copyright (C) 2011-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Adhemerval Zanella <azanella@br.ibm.com>, 2011
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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|
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The GNU C Library is distributed in the hope that it will be useful,
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
|
||||
|
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* This has been coded in assembler because GCC makes such a mess of it
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when it's coded in C. */
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#include <sysdep.h>
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#include <math_ldbl_opt.h>
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#include <libm-alias-double.h>
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/* double [fp1] nearbyint(double [fp1] x) */
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.section ".toc","aw"
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.LC0: /* 2**52 */
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.tc FD_43300000_0[TC],0x4330000000000000
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.section ".text"
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ENTRY (__nearbyint, 4)
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CALL_MCOUNT 0
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fabs fp0,fp1
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lfd fp13,.LC0@toc(2)
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fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
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bge cr7,.L10
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fsub fp12,fp13,fp13 /* generate 0.0 */
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fcmpu cr7,fp1,fp12 /* if (x > 0.0) */
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ble cr7, L(lessthanzero)
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mffs fp11
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mtfsb0 4*cr7+lt /* Disable FE_INEXACT exception */
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fadd fp1,fp1,fp13 /* x+= TWO52 */
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fsub fp1,fp1,fp13 /* x-= TWO52 */
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fabs fp1,fp1 /* if (x == 0.0) */
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mtfsf 0xff,fp11 /* Restore FE_INEXACT state. */
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blr /* x = 0.0; */
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L(lessthanzero):
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bgelr cr7 /* if (x < 0.0) */
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mffs fp11
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mtfsb0 4*cr7+lt
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fsub fp1,fp1,fp13 /* x -= TWO52 */
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fadd fp1,fp1,fp13 /* x += TWO52 */
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fnabs fp1,fp1 /* if (x == 0.0) */
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mtfsf 0xff,fp11 /* Restore FE_INEXACT state. */
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blr /* x = -0.0; */
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.L10:
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/* Ensure sNaN input is converted to qNaN. */
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fcmpu cr7,fp1,fp1
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beqlr cr7
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fadd fp1,fp1,fp1
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blr
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END (__nearbyint)
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libm_alias_double (__nearbyint, nearbyint)
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@ -1,69 +0,0 @@
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/* Round to int floating-point values. PowerPC64 version.
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Copyright (C) 2011-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Adhemerval Zanella <azanella@br.ibm.com>, 2011
|
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|
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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/>. */
|
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|
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/* This has been coded in assembler because GCC makes such a mess of it
|
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when it's coded in C. */
|
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#include <sysdep.h>
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#include <libm-alias-float.h>
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/* float [fp1] nearbyintf(float [fp1]) */
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.section ".toc","aw"
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.p2align 3
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.LC0: /* 2**23 */
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.long 0x4b000000
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.long 0x0
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.section ".text"
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ENTRY (__nearbyintf, 4)
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CALL_MCOUNT 0
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fabs fp0,fp1
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lfs fp13,.LC0@toc(2)
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fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */
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bge cr7,.L10
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fsubs fp12,fp13,fp13 /* generate 0.0 */
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fcmpu cr7,fp1,fp12 /* if (x > 0.0) */
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ble cr7, L(lessthanzero)
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mffs fp11
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mtfsb0 4*cr7+lt /* Disable FE_INEXACT exception */
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fadds fp1,fp1,fp13 /* x += TWO23 */
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fsubs fp1,fp1,fp13 /* x -= TWO23 */
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fabs fp1,fp1 /* if (x == 0.0) */
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mtfsf 0xff,fp11 /* Restore FE_INEXACT state. */
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blr /* x = 0.0; */
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L(lessthanzero):
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bgelr cr7 /* if (x < 0.0) */
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mffs fp11
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mtfsb0 4*cr7+lt /* Disable FE_INEXACT exception */
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fsubs fp1,fp1,fp13 /* x -= TWO23 */
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fadds fp1,fp1,fp13 /* x += TWO23 */
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fnabs fp1,fp1 /* if (x == 0.0) */
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mtfsf 0xff,fp11 /* Restore FE_INEXACT state. */
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blr /* x = -0.0; */
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.L10:
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/* Ensure sNaN input is converted to qNaN. */
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fcmpu cr7,fp1,fp1
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beqlr cr7
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fadds fp1,fp1,fp1
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blr
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END (__nearbyintf)
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libm_alias_float (__nearbyint, nearbyint)
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