diff options
Diffstat (limited to 'sysdeps/arm/fenv_private.h')
| -rw-r--r-- | sysdeps/arm/fenv_private.h | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/sysdeps/arm/fenv_private.h b/sysdeps/arm/fenv_private.h deleted file mode 100644 index af31025d95..0000000000 --- a/sysdeps/arm/fenv_private.h +++ /dev/null @@ -1,249 +0,0 @@ -/* Private floating point rounding and exceptions handling. ARM VFP version. - Copyright (C) 2014-2017 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/>. */ - -#ifndef FENV_PRIVATE_H -#define FENV_PRIVATE_H 1 - -#include <fenv.h> -#include <fpu_control.h> - -static __always_inline void -libc_feholdexcept_vfp (fenv_t *envp) -{ - fpu_control_t fpscr; - - _FPU_GETCW (fpscr); - envp->__cw = fpscr; - - /* Clear exception flags and set all exceptions to non-stop. */ - fpscr &= ~_FPU_MASK_EXCEPT; - _FPU_SETCW (fpscr); -} - -static __always_inline void -libc_fesetround_vfp (int round) -{ - fpu_control_t fpscr; - - _FPU_GETCW (fpscr); - - /* Set new rounding mode if different. */ - if (__glibc_unlikely ((fpscr & _FPU_MASK_RM) != round)) - _FPU_SETCW ((fpscr & ~_FPU_MASK_RM) | round); -} - -static __always_inline void -libc_feholdexcept_setround_vfp (fenv_t *envp, int round) -{ - fpu_control_t fpscr; - - _FPU_GETCW (fpscr); - envp->__cw = fpscr; - - /* Clear exception flags, set all exceptions to non-stop, - and set new rounding mode. */ - fpscr &= ~(_FPU_MASK_EXCEPT | _FPU_MASK_RM); - _FPU_SETCW (fpscr | round); -} - -static __always_inline void -libc_feholdsetround_vfp (fenv_t *envp, int round) -{ - fpu_control_t fpscr; - - _FPU_GETCW (fpscr); - envp->__cw = fpscr; - - /* Set new rounding mode if different. */ - if (__glibc_unlikely ((fpscr & _FPU_MASK_RM) != round)) - _FPU_SETCW ((fpscr & ~_FPU_MASK_RM) | round); -} - -static __always_inline void -libc_feresetround_vfp (fenv_t *envp) -{ - fpu_control_t fpscr, round; - - _FPU_GETCW (fpscr); - - /* Check whether rounding modes are different. */ - round = (envp->__cw ^ fpscr) & _FPU_MASK_RM; - - /* Restore the rounding mode if it was changed. */ - if (__glibc_unlikely (round != 0)) - _FPU_SETCW (fpscr ^ round); -} - -static __always_inline int -libc_fetestexcept_vfp (int ex) -{ - fpu_control_t fpscr; - - _FPU_GETCW (fpscr); - return fpscr & ex & FE_ALL_EXCEPT; -} - -static __always_inline void -libc_fesetenv_vfp (const fenv_t *envp) -{ - fpu_control_t fpscr, new_fpscr; - - _FPU_GETCW (fpscr); - new_fpscr = envp->__cw; - - /* Write new FPSCR if different (ignoring NZCV flags). */ - if (__glibc_unlikely (((fpscr ^ new_fpscr) & ~_FPU_MASK_NZCV) != 0)) - _FPU_SETCW (new_fpscr); -} - -static __always_inline int -libc_feupdateenv_test_vfp (const fenv_t *envp, int ex) -{ - fpu_control_t fpscr, new_fpscr; - int excepts; - - _FPU_GETCW (fpscr); - - /* Merge current exception flags with the saved fenv. */ - excepts = fpscr & FE_ALL_EXCEPT; - new_fpscr = envp->__cw | excepts; - - /* Write new FPSCR if different (ignoring NZCV flags). */ - if (__glibc_unlikely (((fpscr ^ new_fpscr) & ~_FPU_MASK_NZCV) != 0)) - _FPU_SETCW (new_fpscr); - - /* Raise the exceptions if enabled in the new FP state. */ - if (__glibc_unlikely (excepts & (new_fpscr >> FE_EXCEPT_SHIFT))) - __feraiseexcept (excepts); - - return excepts & ex; -} - -static __always_inline void -libc_feupdateenv_vfp (const fenv_t *envp) -{ - libc_feupdateenv_test_vfp (envp, 0); -} - -static __always_inline void -libc_feholdsetround_vfp_ctx (struct rm_ctx *ctx, int r) -{ - fpu_control_t fpscr, round; - - _FPU_GETCW (fpscr); - ctx->updated_status = false; - ctx->env.__cw = fpscr; - - /* Check whether rounding modes are different. */ - round = (fpscr ^ r) & _FPU_MASK_RM; - - /* Set the rounding mode if changed. */ - if (__glibc_unlikely (round != 0)) - { - ctx->updated_status = true; - _FPU_SETCW (fpscr ^ round); - } -} - -static __always_inline void -libc_feresetround_vfp_ctx (struct rm_ctx *ctx) -{ - /* Restore the rounding mode if updated. */ - if (__glibc_unlikely (ctx->updated_status)) - { - fpu_control_t fpscr; - - _FPU_GETCW (fpscr); - fpscr = (fpscr & ~_FPU_MASK_RM) | (ctx->env.__cw & _FPU_MASK_RM); - _FPU_SETCW (fpscr); - } -} - -static __always_inline void -libc_fesetenv_vfp_ctx (struct rm_ctx *ctx) -{ - fpu_control_t fpscr, new_fpscr; - - _FPU_GETCW (fpscr); - new_fpscr = ctx->env.__cw; - - /* Write new FPSCR if different (ignoring NZCV flags). */ - if (__glibc_unlikely (((fpscr ^ new_fpscr) & ~_FPU_MASK_NZCV) != 0)) - _FPU_SETCW (new_fpscr); -} - -#ifndef __SOFTFP__ - -# define libc_feholdexcept libc_feholdexcept_vfp -# define libc_feholdexceptf libc_feholdexcept_vfp -# define libc_feholdexceptl libc_feholdexcept_vfp - -# define libc_fesetround libc_fesetround_vfp -# define libc_fesetroundf libc_fesetround_vfp -# define libc_fesetroundl libc_fesetround_vfp - -# define libc_feresetround libc_feresetround_vfp -# define libc_feresetroundf libc_feresetround_vfp -# define libc_feresetroundl libc_feresetround_vfp - -# define libc_feresetround_noex libc_fesetenv_vfp -# define libc_feresetround_noexf libc_fesetenv_vfp -# define libc_feresetround_noexl libc_fesetenv_vfp - -# define libc_feholdexcept_setround libc_feholdexcept_setround_vfp -# define libc_feholdexcept_setroundf libc_feholdexcept_setround_vfp -# define libc_feholdexcept_setroundl libc_feholdexcept_setround_vfp - -# define libc_feholdsetround libc_feholdsetround_vfp -# define libc_feholdsetroundf libc_feholdsetround_vfp -# define libc_feholdsetroundl libc_feholdsetround_vfp - -# define libc_fetestexcept libc_fetestexcept_vfp -# define libc_fetestexceptf libc_fetestexcept_vfp -# define libc_fetestexceptl libc_fetestexcept_vfp - -# define libc_fesetenv libc_fesetenv_vfp -# define libc_fesetenvf libc_fesetenv_vfp -# define libc_fesetenvl libc_fesetenv_vfp - -# define libc_feupdateenv libc_feupdateenv_vfp -# define libc_feupdateenvf libc_feupdateenv_vfp -# define libc_feupdateenvl libc_feupdateenv_vfp - -# define libc_feupdateenv_test libc_feupdateenv_test_vfp -# define libc_feupdateenv_testf libc_feupdateenv_test_vfp -# define libc_feupdateenv_testl libc_feupdateenv_test_vfp - -/* We have support for rounding mode context. */ -#define HAVE_RM_CTX 1 - -# define libc_feholdsetround_ctx libc_feholdsetround_vfp_ctx -# define libc_feresetround_ctx libc_feresetround_vfp_ctx -# define libc_feresetround_noex_ctx libc_fesetenv_vfp_ctx - -# define libc_feholdsetroundf_ctx libc_feholdsetround_vfp_ctx -# define libc_feresetroundf_ctx libc_feresetround_vfp_ctx -# define libc_feresetround_noexf_ctx libc_fesetenv_vfp_ctx - -# define libc_feholdsetroundl_ctx libc_feholdsetround_vfp_ctx -# define libc_feresetroundl_ctx libc_feresetround_vfp_ctx -# define libc_feresetround_noexl_ctx libc_fesetenv_vfp_ctx - -#endif - -#endif /* FENV_PRIVATE_H */ |