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-rw-r--r--sysdeps/mips/math_private.h249
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diff --git a/sysdeps/mips/math_private.h b/sysdeps/mips/math_private.h
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--- a/sysdeps/mips/math_private.h
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-/* Internal math stuff. MIPS version.
- Copyright (C) 2013-2017 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 MIPS_MATH_PRIVATE_H
-#define MIPS_MATH_PRIVATE_H 1
-
-/* Inline functions to speed up the math library implementation. The
- default versions of these routines are in generic/math_private.h
- and call fesetround, feholdexcept, etc. These routines use inlined
- code instead. */
-
-#ifdef __mips_hard_float
-
-# include <fenv.h>
-# include <fenv_libc.h>
-# include <fpu_control.h>
-
-# define _FPU_MASK_ALL (_FPU_MASK_V | _FPU_MASK_Z | _FPU_MASK_O \
- |_FPU_MASK_U | _FPU_MASK_I | FE_ALL_EXCEPT)
-
-static __always_inline void
-libc_feholdexcept_mips (fenv_t *envp)
-{
- fpu_control_t cw;
-
- /* Save the current state. */
- _FPU_GETCW (cw);
- envp->__fp_control_register = cw;
-
- /* Clear all exception enable bits and flags. */
- cw &= ~(_FPU_MASK_ALL);
- _FPU_SETCW (cw);
-}
-# define libc_feholdexcept libc_feholdexcept_mips
-# define libc_feholdexceptf libc_feholdexcept_mips
-# define libc_feholdexceptl libc_feholdexcept_mips
-
-static __always_inline void
-libc_fesetround_mips (int round)
-{
- fpu_control_t cw;
-
- /* Get current state. */
- _FPU_GETCW (cw);
-
- /* Set rounding bits. */
- cw &= ~_FPU_RC_MASK;
- cw |= round;
-
- /* Set new state. */
- _FPU_SETCW (cw);
-}
-# define libc_fesetround libc_fesetround_mips
-# define libc_fesetroundf libc_fesetround_mips
-# define libc_fesetroundl libc_fesetround_mips
-
-static __always_inline void
-libc_feholdexcept_setround_mips (fenv_t *envp, int round)
-{
- fpu_control_t cw;
-
- /* Save the current state. */
- _FPU_GETCW (cw);
- envp->__fp_control_register = cw;
-
- /* Clear all exception enable bits and flags. */
- cw &= ~(_FPU_MASK_ALL);
-
- /* Set rounding bits. */
- cw &= ~_FPU_RC_MASK;
- cw |= round;
-
- /* Set new state. */
- _FPU_SETCW (cw);
-}
-# define libc_feholdexcept_setround libc_feholdexcept_setround_mips
-# define libc_feholdexcept_setroundf libc_feholdexcept_setround_mips
-# define libc_feholdexcept_setroundl libc_feholdexcept_setround_mips
-
-# define libc_feholdsetround libc_feholdexcept_setround_mips
-# define libc_feholdsetroundf libc_feholdexcept_setround_mips
-# define libc_feholdsetroundl libc_feholdexcept_setround_mips
-
-static __always_inline void
-libc_fesetenv_mips (fenv_t *envp)
-{
- fpu_control_t cw __attribute__ ((unused));
-
- /* Read current state to flush fpu pipeline. */
- _FPU_GETCW (cw);
-
- _FPU_SETCW (envp->__fp_control_register);
-}
-# define libc_fesetenv libc_fesetenv_mips
-# define libc_fesetenvf libc_fesetenv_mips
-# define libc_fesetenvl libc_fesetenv_mips
-
-static __always_inline int
-libc_feupdateenv_test_mips (fenv_t *envp, int excepts)
-{
- /* int ret = fetestexcept (excepts); feupdateenv (envp); return ret; */
- int cw, temp;
-
- /* Get current control word. */
- _FPU_GETCW (cw);
-
- /* Set flag bits (which are accumulative), and *also* set the
- cause bits. The setting of the cause bits is what actually causes
- the hardware to generate the exception, if the corresponding enable
- bit is set as well. */
- temp = cw & FE_ALL_EXCEPT;
- temp |= envp->__fp_control_register | (temp << CAUSE_SHIFT);
-
- /* Set new state. */
- _FPU_SETCW (temp);
-
- return cw & excepts & FE_ALL_EXCEPT;
-}
-# define libc_feupdateenv_test libc_feupdateenv_test_mips
-# define libc_feupdateenv_testf libc_feupdateenv_test_mips
-# define libc_feupdateenv_testl libc_feupdateenv_test_mips
-
-static __always_inline void
-libc_feupdateenv_mips (fenv_t *envp)
-{
- libc_feupdateenv_test_mips (envp, 0);
-}
-# define libc_feupdateenv libc_feupdateenv_mips
-# define libc_feupdateenvf libc_feupdateenv_mips
-# define libc_feupdateenvl libc_feupdateenv_mips
-
-# define libc_feresetround libc_feupdateenv_mips
-# define libc_feresetroundf libc_feupdateenv_mips
-# define libc_feresetroundl libc_feupdateenv_mips
-
-static __always_inline int
-libc_fetestexcept_mips (int excepts)
-{
- int cw;
-
- /* Get current control word. */
- _FPU_GETCW (cw);
-
- return cw & excepts & FE_ALL_EXCEPT;
-}
-# define libc_fetestexcept libc_fetestexcept_mips
-# define libc_fetestexceptf libc_fetestexcept_mips
-# define libc_fetestexceptl libc_fetestexcept_mips
-
-/* Enable support for rounding mode context. */
-# define HAVE_RM_CTX 1
-
-static __always_inline void
-libc_feholdexcept_setround_mips_ctx (struct rm_ctx *ctx, int round)
-{
- fpu_control_t old, new;
-
- /* Save the current state. */
- _FPU_GETCW (old);
- ctx->env.__fp_control_register = old;
-
- /* Clear all exception enable bits and flags. */
- new = old & ~(_FPU_MASK_ALL);
-
- /* Set rounding bits. */
- new = (new & ~_FPU_RC_MASK) | round;
-
- if (__glibc_unlikely (new != old))
- {
- _FPU_SETCW (new);
- ctx->updated_status = true;
- }
- else
- ctx->updated_status = false;
-}
-# define libc_feholdexcept_setround_ctx libc_feholdexcept_setround_mips_ctx
-# define libc_feholdexcept_setroundf_ctx libc_feholdexcept_setround_mips_ctx
-# define libc_feholdexcept_setroundl_ctx libc_feholdexcept_setround_mips_ctx
-
-static __always_inline void
-libc_fesetenv_mips_ctx (struct rm_ctx *ctx)
-{
- libc_fesetenv_mips (&ctx->env);
-}
-# define libc_fesetenv_ctx libc_fesetenv_mips_ctx
-# define libc_fesetenvf_ctx libc_fesetenv_mips_ctx
-# define libc_fesetenvl_ctx libc_fesetenv_mips_ctx
-
-static __always_inline void
-libc_feupdateenv_mips_ctx (struct rm_ctx *ctx)
-{
- if (__glibc_unlikely (ctx->updated_status))
- libc_feupdateenv_test_mips (&ctx->env, 0);
-}
-# define libc_feupdateenv_ctx libc_feupdateenv_mips_ctx
-# define libc_feupdateenvf_ctx libc_feupdateenv_mips_ctx
-# define libc_feupdateenvl_ctx libc_feupdateenv_mips_ctx
-# define libc_feresetround_ctx libc_feupdateenv_mips_ctx
-# define libc_feresetroundf_ctx libc_feupdateenv_mips_ctx
-# define libc_feresetroundl_ctx libc_feupdateenv_mips_ctx
-
-static __always_inline void
-libc_feholdsetround_mips_ctx (struct rm_ctx *ctx, int round)
-{
- fpu_control_t old, new;
-
- /* Save the current state. */
- _FPU_GETCW (old);
- ctx->env.__fp_control_register = old;
-
- /* Set rounding bits. */
- new = (old & ~_FPU_RC_MASK) | round;
-
- if (__glibc_unlikely (new != old))
- {
- _FPU_SETCW (new);
- ctx->updated_status = true;
- }
- else
- ctx->updated_status = false;
-}
-# define libc_feholdsetround_ctx libc_feholdsetround_mips_ctx
-# define libc_feholdsetroundf_ctx libc_feholdsetround_mips_ctx
-# define libc_feholdsetroundl_ctx libc_feholdsetround_mips_ctx
-
-#endif
-
-/* Enable __finitel, __isinfl, and __isnanl for binary compatibility
- when built without long double support. */
-#define LDBL_CLASSIFY_COMPAT 1
-
-#include_next <math_private.h>
-
-#endif
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