diff options
Diffstat (limited to 'sysdeps/aarch64/fpu/fraiseexcpt.c')
-rw-r--r-- | sysdeps/aarch64/fpu/fraiseexcpt.c | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/sysdeps/aarch64/fpu/fraiseexcpt.c b/sysdeps/aarch64/fpu/fraiseexcpt.c deleted file mode 100644 index 557b061ca7..0000000000 --- a/sysdeps/aarch64/fpu/fraiseexcpt.c +++ /dev/null @@ -1,93 +0,0 @@ -/* Copyright (C) 1997-2017 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 <fenv.h> -#include <fpu_control.h> -#include <float.h> - -int -__feraiseexcept (int excepts) -{ - int fpsr; - const float fp_zero = 0.0; - const float fp_one = 1.0; - const float fp_max = FLT_MAX; - const float fp_min = FLT_MIN; - const float fp_1e32 = 1.0e32f; - const float fp_two = 2.0; - const float fp_three = 3.0; - - /* Raise exceptions represented by EXCEPTS. But we must raise only - one signal at a time. It is important that if the OVERFLOW or - UNDERFLOW exception and the inexact exception are given at the - same time, the OVERFLOW or UNDERFLOW exception precedes the - INEXACT exception. - - After each exception we read from the FPSR, to force the - exception to be raised immediately. */ - - if (FE_INVALID & excepts) - __asm__ __volatile__ ( - "ldr s0, %1\n\t" - "fdiv s0, s0, s0\n\t" - "mrs %0, fpsr" : "=r" (fpsr) - : "m" (fp_zero) - : "d0"); - - if (FE_DIVBYZERO & excepts) - __asm__ __volatile__ ( - "ldr s0, %1\n\t" - "ldr s1, %2\n\t" - "fdiv s0, s0, s1\n\t" - "mrs %0, fpsr" : "=r" (fpsr) - : "m" (fp_one), "m" (fp_zero) - : "d0", "d1"); - - if (FE_OVERFLOW & excepts) - /* There's no way to raise overflow without also raising inexact. */ - __asm__ __volatile__ ( - "ldr s0, %1\n\t" - "ldr s1, %2\n\t" - "fadd s0, s0, s1\n\t" - "mrs %0, fpsr" : "=r" (fpsr) - : "m" (fp_max), "m" (fp_1e32) - : "d0", "d1"); - - if (FE_UNDERFLOW & excepts) - __asm__ __volatile__ ( - "ldr s0, %1\n\t" - "ldr s1, %2\n\t" - "fdiv s0, s0, s1\n\t" - "mrs %0, fpsr" : "=r" (fpsr) - : "m" (fp_min), "m" (fp_three) - : "d0", "d1"); - - if (FE_INEXACT & excepts) - __asm__ __volatile__ ( - "ldr s0, %1\n\t" - "ldr s1, %2\n\t" - "fdiv s0, s0, s1\n\t" - "mrs %0, fpsr" : "=r" (fpsr) - : "m" (fp_two), "m" (fp_three) - : "d0", "d1"); - - return 0; -} -libm_hidden_def (__feraiseexcept) -weak_alias (__feraiseexcept, feraiseexcept) -libm_hidden_weak (feraiseexcept) |