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Split fenv_private.h out of math_private.h more consistently.

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On some architectures, the parts of math_private.h relating to the
floating-point environment are in a separate file fenv_private.h
included from math_private.h.  As this is purely an
architecture-specific convention used by several architectures,
however, all such architectures still need their own math_private.h,
even if it has nothing to do beyond #include <fenv_private.h> and
peculiarity of including the i386 file directly instead of having a
shared file in sysdeps/x86.

This patch makes the fenv_private.h name an architecture-independent
convention in glibc.  The include of fenv_private.h from
math_private.h becomes architecture-independent (until callers are
updated to include fenv_private.h directly so the include from
math_private.h is no longer needed).  Some architecture math_private.h
headers are removed if no longer needed, or renamed to fenv_private.h
if all they define belongs in that header; architecture fenv_private.h
headers now do require #include_next <fenv_private.h>.  The i386
fenv_private.h file moves to sysdeps/x86/fpu/ to reflect how it is
actually shared with x86_64.  The generic math_private.h gets a new
include of <stdbool.h>, as needed for bool in some prototypes in that
header (previously that was indirectly included via include/fenv.h,
which now only gets included too late in math_private.h, after those
prototypes).

Tested for x86_64 and x86, and tested with build-many-glibcs.py that
installed stripped shared libraries are unchanged by the patch.

	* sysdeps/aarch64/fpu/fenv_private.h: New file.  Based on ....
	* sysdeps/aarch64/fpu/math_private.h: ... this file.  All contents
	moved to fenv_private.h except for ...
	(TOINT_INTRINSICS): Kept in math_private.h.
	(roundtoint): Likewise.
	(converttoint): Likewise.
	* sysdeps/arm/fenv_private.h: Change multiple-include guard to
	[ARM_FENV_PRIVATE_H].  Include next <fenv_private.h>.
	* sysdeps/arm/math_private.h: Remove.
	* sysdeps/generic/fenv_private.h: New file.  Contents moved from
	....
	* sysdeps/generic/math_private.h: ... this file.  Include
	<stdbool.h>.  Do not include <fenv.h> or <get-rounding-mode.h>.
	Include <fenv_private.h>.  Remove functions and macros moved to
	fenv_private.h.
	* sysdeps/i386/fpu/math_private.h: Remove.
	* sysdeps/mips/math_private.h: Move to ....
	* sysdeps/mips/fpu/fenv_private.h: ... here.  Change
	multiple-include guard to [MIPS_FENV_PRIVATE_H].  Remove
	[__mips_hard_float] conditional.  Include next <fenv_private.h>.
	* sysdeps/powerpc/fpu/fenv_private.h: Change multiple-include
	guard to [POWERPC_FENV_PRIVATE_H].  Include next <fenv_private.h>.
	* sysdeps/powerpc/fpu/math_private.h: Do not include
	<fenv_private.h>.
	* sysdeps/riscv/rvf/math_private.h: Move to ....
	* sysdeps/riscv/rvf/fenv_private.h: ... here.  Change
	multiple-include guard to [RISCV_FENV_PRIVATE_H].  Include next
	<fenv_private.h>.
	* sysdeps/sparc/fpu/fenv_private.h: Change multiple-include guard
	to [SPARC_FENV_PRIVATE_H].  Include next <fenv_private.h>.
	* sysdeps/sparc/fpu/math_private.h: Remove.
	* sysdeps/i386/fpu/fenv_private.h: Move to ....
	* sysdeps/x86/fpu/fenv_private.h: ... here.  Change
	multiple-include guard to [X86_FENV_PRIVATE_H].  Include next
	<fenv_private.h>.
	* sysdeps/x86_64/fpu/math_private.h: Do not include
	<sysdeps/i386/fpu/fenv_private.h>.
This commit is contained in:
Joseph Myers 2018-08-28 20:48:49 +00:00
parent 761404b74d
commit ff6b24501f
16 changed files with 839 additions and 767 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
ChangeLog
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@ -1,3 +1,43 @@
2018-08-28 Joseph Myers <joseph@codesourcery.com>
* sysdeps/aarch64/fpu/fenv_private.h: New file. Based on ....
* sysdeps/aarch64/fpu/math_private.h: ... this file. All contents
moved to fenv_private.h except for ...
(TOINT_INTRINSICS): Kept in math_private.h.
(roundtoint): Likewise.
(converttoint): Likewise.
* sysdeps/arm/fenv_private.h: Change multiple-include guard to
[ARM_FENV_PRIVATE_H]. Include next <fenv_private.h>.
* sysdeps/arm/math_private.h: Remove.
* sysdeps/generic/fenv_private.h: New file. Contents moved from
....
* sysdeps/generic/math_private.h: ... this file. Include
<stdbool.h>. Do not include <fenv.h> or <get-rounding-mode.h>.
Include <fenv_private.h>. Remove functions and macros moved to
fenv_private.h.
* sysdeps/i386/fpu/math_private.h: Remove.
* sysdeps/mips/math_private.h: Move to ....
* sysdeps/mips/fpu/fenv_private.h: ... here. Change
multiple-include guard to [MIPS_FENV_PRIVATE_H]. Remove
[__mips_hard_float] conditional. Include next <fenv_private.h>.
* sysdeps/powerpc/fpu/fenv_private.h: Change multiple-include
guard to [POWERPC_FENV_PRIVATE_H]. Include next <fenv_private.h>.
* sysdeps/powerpc/fpu/math_private.h: Do not include
<fenv_private.h>.
* sysdeps/riscv/rvf/math_private.h: Move to ....
* sysdeps/riscv/rvf/fenv_private.h: ... here. Change
multiple-include guard to [RISCV_FENV_PRIVATE_H]. Include next
<fenv_private.h>.
* sysdeps/sparc/fpu/fenv_private.h: Change multiple-include guard
to [SPARC_FENV_PRIVATE_H]. Include next <fenv_private.h>.
* sysdeps/sparc/fpu/math_private.h: Remove.
* sysdeps/i386/fpu/fenv_private.h: Move to ....
* sysdeps/x86/fpu/fenv_private.h: ... here. Change
multiple-include guard to [X86_FENV_PRIVATE_H]. Include next
<fenv_private.h>.
* sysdeps/x86_64/fpu/math_private.h: Do not include
<sysdeps/i386/fpu/fenv_private.h>.
2018-08-28 Florian Weimer <fweimer@redhat.com>
[BZ #23578]

303
sysdeps/aarch64/fpu/fenv_private.h Normal file
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@ -0,0 +1,303 @@
/* Private floating point rounding and exceptions handling. AArch64 version.
Copyright (C) 2014-2018 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 AARCH64_FENV_PRIVATE_H
#define AARCH64_FENV_PRIVATE_H 1
#include <fenv.h>
#include <fpu_control.h>
static __always_inline void
libc_feholdexcept_aarch64 (fenv_t *envp)
{
fpu_control_t fpcr;
fpu_control_t new_fpcr;
fpu_fpsr_t fpsr;
fpu_fpsr_t new_fpsr;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
envp->__fpcr = fpcr;
envp->__fpsr = fpsr;
/* Clear exception flags and set all exceptions to non-stop. */
new_fpcr = fpcr & ~(FE_ALL_EXCEPT << FE_EXCEPT_SHIFT);
new_fpsr = fpsr & ~FE_ALL_EXCEPT;
if (__glibc_unlikely (new_fpcr != fpcr))
_FPU_SETCW (new_fpcr);
if (new_fpsr != fpsr)
_FPU_SETFPSR (new_fpsr);
}
#define libc_feholdexcept libc_feholdexcept_aarch64
#define libc_feholdexceptf libc_feholdexcept_aarch64
#define libc_feholdexceptl libc_feholdexcept_aarch64
static __always_inline void
libc_fesetround_aarch64 (int round)
{
fpu_control_t fpcr;
_FPU_GETCW (fpcr);
/* Check whether rounding modes are different. */
round = (fpcr ^ round) & _FPU_FPCR_RM_MASK;
/* Set new rounding mode if different. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_fesetround libc_fesetround_aarch64
#define libc_fesetroundf libc_fesetround_aarch64
#define libc_fesetroundl libc_fesetround_aarch64
static __always_inline void
libc_feholdexcept_setround_aarch64 (fenv_t *envp, int round)
{
fpu_control_t fpcr;
fpu_control_t new_fpcr;
fpu_fpsr_t fpsr;
fpu_fpsr_t new_fpsr;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
envp->__fpcr = fpcr;
envp->__fpsr = fpsr;
/* Clear exception flags, set all exceptions to non-stop,
and set new rounding mode. */
new_fpcr = fpcr & ~((FE_ALL_EXCEPT << FE_EXCEPT_SHIFT) | _FPU_FPCR_RM_MASK);
new_fpcr |= round;
new_fpsr = fpsr & ~FE_ALL_EXCEPT;
if (__glibc_unlikely (new_fpcr != fpcr))
_FPU_SETCW (new_fpcr);
if (new_fpsr != fpsr)
_FPU_SETFPSR (new_fpsr);
}
#define libc_feholdexcept_setround libc_feholdexcept_setround_aarch64
#define libc_feholdexcept_setroundf libc_feholdexcept_setround_aarch64
#define libc_feholdexcept_setroundl libc_feholdexcept_setround_aarch64
static __always_inline int
libc_fetestexcept_aarch64 (int ex)
{
fpu_fpsr_t fpsr;
_FPU_GETFPSR (fpsr);
return fpsr & ex & FE_ALL_EXCEPT;
}
#define libc_fetestexcept libc_fetestexcept_aarch64
#define libc_fetestexceptf libc_fetestexcept_aarch64
#define libc_fetestexceptl libc_fetestexcept_aarch64
static __always_inline void
libc_fesetenv_aarch64 (const fenv_t *envp)
{
fpu_control_t fpcr;
fpu_control_t new_fpcr;
_FPU_GETCW (fpcr);
new_fpcr = envp->__fpcr;
if (__glibc_unlikely (fpcr != new_fpcr))
_FPU_SETCW (new_fpcr);
_FPU_SETFPSR (envp->__fpsr);
}
#define libc_fesetenv libc_fesetenv_aarch64
#define libc_fesetenvf libc_fesetenv_aarch64
#define libc_fesetenvl libc_fesetenv_aarch64
#define libc_feresetround_noex libc_fesetenv_aarch64
#define libc_feresetround_noexf libc_fesetenv_aarch64
#define libc_feresetround_noexl libc_fesetenv_aarch64
static __always_inline int
libc_feupdateenv_test_aarch64 (const fenv_t *envp, int ex)
{
fpu_control_t fpcr;
fpu_control_t new_fpcr;
fpu_fpsr_t fpsr;
fpu_fpsr_t new_fpsr;
int excepts;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
/* Merge current exception flags with the saved fenv. */
excepts = fpsr & FE_ALL_EXCEPT;
new_fpcr = envp->__fpcr;
new_fpsr = envp->__fpsr | excepts;
if (__glibc_unlikely (fpcr != new_fpcr))
_FPU_SETCW (new_fpcr);
if (fpsr != new_fpsr)
_FPU_SETFPSR (new_fpsr);
/* Raise the exceptions if enabled in the new FP state. */
if (__glibc_unlikely (excepts & (new_fpcr >> FE_EXCEPT_SHIFT)))
__feraiseexcept (excepts);
return excepts & ex;
}
#define libc_feupdateenv_test libc_feupdateenv_test_aarch64
#define libc_feupdateenv_testf libc_feupdateenv_test_aarch64
#define libc_feupdateenv_testl libc_feupdateenv_test_aarch64
static __always_inline void
libc_feupdateenv_aarch64 (const fenv_t *envp)
{
libc_feupdateenv_test_aarch64 (envp, 0);
}
#define libc_feupdateenv libc_feupdateenv_aarch64
#define libc_feupdateenvf libc_feupdateenv_aarch64
#define libc_feupdateenvl libc_feupdateenv_aarch64
static __always_inline void
libc_feholdsetround_aarch64 (fenv_t *envp, int round)
{
fpu_control_t fpcr;
fpu_fpsr_t fpsr;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
envp->__fpcr = fpcr;
envp->__fpsr = fpsr;
/* Check whether rounding modes are different. */
round = (fpcr ^ round) & _FPU_FPCR_RM_MASK;
/* Set new rounding mode if different. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_feholdsetround libc_feholdsetround_aarch64
#define libc_feholdsetroundf libc_feholdsetround_aarch64
#define libc_feholdsetroundl libc_feholdsetround_aarch64
static __always_inline void
libc_feresetround_aarch64 (fenv_t *envp)
{
fpu_control_t fpcr;
int round;
_FPU_GETCW (fpcr);
/* Check whether rounding modes are different. */
round = (envp->__fpcr ^ fpcr) & _FPU_FPCR_RM_MASK;
/* Restore the rounding mode if it was changed. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_feresetround libc_feresetround_aarch64
#define libc_feresetroundf libc_feresetround_aarch64
#define libc_feresetroundl libc_feresetround_aarch64
/* We have support for rounding mode context. */
#define HAVE_RM_CTX 1
static __always_inline void
libc_feholdsetround_aarch64_ctx (struct rm_ctx *ctx, int r)
{
fpu_control_t fpcr;
int round;
_FPU_GETCW (fpcr);
ctx->env.__fpcr = fpcr;
/* Check whether rounding modes are different. */
round = (fpcr ^ r) & _FPU_FPCR_RM_MASK;
ctx->updated_status = round != 0;
/* Set the rounding mode if changed. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_feholdsetround_ctx libc_feholdsetround_aarch64_ctx
#define libc_feholdsetroundf_ctx libc_feholdsetround_aarch64_ctx
#define libc_feholdsetroundl_ctx libc_feholdsetround_aarch64_ctx
static __always_inline void
libc_feresetround_aarch64_ctx (struct rm_ctx *ctx)
{
/* Restore the rounding mode if updated. */
if (__glibc_unlikely (ctx->updated_status))
_FPU_SETCW (ctx->env.__fpcr);
}
#define libc_feresetround_ctx libc_feresetround_aarch64_ctx
#define libc_feresetroundf_ctx libc_feresetround_aarch64_ctx
#define libc_feresetroundl_ctx libc_feresetround_aarch64_ctx
static __always_inline void
libc_feholdsetround_noex_aarch64_ctx (struct rm_ctx *ctx, int r)
{
fpu_control_t fpcr;
fpu_fpsr_t fpsr;
int round;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
ctx->env.__fpcr = fpcr;
ctx->env.__fpsr = fpsr;
/* Check whether rounding modes are different. */
round = (fpcr ^ r) & _FPU_FPCR_RM_MASK;
ctx->updated_status = round != 0;
/* Set the rounding mode if changed. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_feholdsetround_noex_ctx libc_feholdsetround_noex_aarch64_ctx
#define libc_feholdsetround_noexf_ctx libc_feholdsetround_noex_aarch64_ctx
#define libc_feholdsetround_noexl_ctx libc_feholdsetround_noex_aarch64_ctx
static __always_inline void
libc_feresetround_noex_aarch64_ctx (struct rm_ctx *ctx)
{
/* Restore the rounding mode if updated. */
if (__glibc_unlikely (ctx->updated_status))
_FPU_SETCW (ctx->env.__fpcr);
/* Write new FPSR to restore exception flags. */
_FPU_SETFPSR (ctx->env.__fpsr);
}
#define libc_feresetround_noex_ctx libc_feresetround_noex_aarch64_ctx
#define libc_feresetround_noexf_ctx libc_feresetround_noex_aarch64_ctx
#define libc_feresetround_noexl_ctx libc_feresetround_noex_aarch64_ctx
#include_next <fenv_private.h>
#endif

282
sysdeps/aarch64/fpu/math_private.h
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@ -1,5 +1,5 @@
/* Private floating point rounding and exceptions handling. AArch64 version.
Copyright (C) 2014-2018 Free Software Foundation, Inc.
/* Configure optimized libm functions. AArch64 version.
Copyright (C) 2017-2018 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
@ -19,287 +19,9 @@
#ifndef AARCH64_MATH_PRIVATE_H
#define AARCH64_MATH_PRIVATE_H 1
#include <fenv.h>
#include <fpu_control.h>
#include <stdint.h>
#include <math.h>
static __always_inline void
libc_feholdexcept_aarch64 (fenv_t *envp)
{
fpu_control_t fpcr;
fpu_control_t new_fpcr;
fpu_fpsr_t fpsr;
fpu_fpsr_t new_fpsr;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
envp->__fpcr = fpcr;
envp->__fpsr = fpsr;
/* Clear exception flags and set all exceptions to non-stop. */
new_fpcr = fpcr & ~(FE_ALL_EXCEPT << FE_EXCEPT_SHIFT);
new_fpsr = fpsr & ~FE_ALL_EXCEPT;
if (__glibc_unlikely (new_fpcr != fpcr))
_FPU_SETCW (new_fpcr);
if (new_fpsr != fpsr)
_FPU_SETFPSR (new_fpsr);
}
#define libc_feholdexcept libc_feholdexcept_aarch64
#define libc_feholdexceptf libc_feholdexcept_aarch64
#define libc_feholdexceptl libc_feholdexcept_aarch64
static __always_inline void
libc_fesetround_aarch64 (int round)
{
fpu_control_t fpcr;
_FPU_GETCW (fpcr);
/* Check whether rounding modes are different. */
round = (fpcr ^ round) & _FPU_FPCR_RM_MASK;
/* Set new rounding mode if different. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_fesetround libc_fesetround_aarch64
#define libc_fesetroundf libc_fesetround_aarch64
#define libc_fesetroundl libc_fesetround_aarch64
static __always_inline void
libc_feholdexcept_setround_aarch64 (fenv_t *envp, int round)
{
fpu_control_t fpcr;
fpu_control_t new_fpcr;
fpu_fpsr_t fpsr;
fpu_fpsr_t new_fpsr;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
envp->__fpcr = fpcr;
envp->__fpsr = fpsr;
/* Clear exception flags, set all exceptions to non-stop,
and set new rounding mode. */
new_fpcr = fpcr & ~((FE_ALL_EXCEPT << FE_EXCEPT_SHIFT) | _FPU_FPCR_RM_MASK);
new_fpcr |= round;
new_fpsr = fpsr & ~FE_ALL_EXCEPT;
if (__glibc_unlikely (new_fpcr != fpcr))
_FPU_SETCW (new_fpcr);
if (new_fpsr != fpsr)
_FPU_SETFPSR (new_fpsr);
}
#define libc_feholdexcept_setround libc_feholdexcept_setround_aarch64
#define libc_feholdexcept_setroundf libc_feholdexcept_setround_aarch64
#define libc_feholdexcept_setroundl libc_feholdexcept_setround_aarch64
static __always_inline int
libc_fetestexcept_aarch64 (int ex)
{
fpu_fpsr_t fpsr;
_FPU_GETFPSR (fpsr);
return fpsr & ex & FE_ALL_EXCEPT;
}
#define libc_fetestexcept libc_fetestexcept_aarch64
#define libc_fetestexceptf libc_fetestexcept_aarch64
#define libc_fetestexceptl libc_fetestexcept_aarch64
static __always_inline void
libc_fesetenv_aarch64 (const fenv_t *envp)
{
fpu_control_t fpcr;
fpu_control_t new_fpcr;
_FPU_GETCW (fpcr);
new_fpcr = envp->__fpcr;
if (__glibc_unlikely (fpcr != new_fpcr))
_FPU_SETCW (new_fpcr);
_FPU_SETFPSR (envp->__fpsr);
}
#define libc_fesetenv libc_fesetenv_aarch64
#define libc_fesetenvf libc_fesetenv_aarch64
#define libc_fesetenvl libc_fesetenv_aarch64
#define libc_feresetround_noex libc_fesetenv_aarch64
#define libc_feresetround_noexf libc_fesetenv_aarch64
#define libc_feresetround_noexl libc_fesetenv_aarch64
static __always_inline int
libc_feupdateenv_test_aarch64 (const fenv_t *envp, int ex)
{
fpu_control_t fpcr;
fpu_control_t new_fpcr;
fpu_fpsr_t fpsr;
fpu_fpsr_t new_fpsr;
int excepts;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
/* Merge current exception flags with the saved fenv. */
excepts = fpsr & FE_ALL_EXCEPT;
new_fpcr = envp->__fpcr;
new_fpsr = envp->__fpsr | excepts;
if (__glibc_unlikely (fpcr != new_fpcr))
_FPU_SETCW (new_fpcr);
if (fpsr != new_fpsr)
_FPU_SETFPSR (new_fpsr);
/* Raise the exceptions if enabled in the new FP state. */
if (__glibc_unlikely (excepts & (new_fpcr >> FE_EXCEPT_SHIFT)))
__feraiseexcept (excepts);
return excepts & ex;
}
#define libc_feupdateenv_test libc_feupdateenv_test_aarch64
#define libc_feupdateenv_testf libc_feupdateenv_test_aarch64
#define libc_feupdateenv_testl libc_feupdateenv_test_aarch64
static __always_inline void
libc_feupdateenv_aarch64 (const fenv_t *envp)
{
libc_feupdateenv_test_aarch64 (envp, 0);
}
#define libc_feupdateenv libc_feupdateenv_aarch64
#define libc_feupdateenvf libc_feupdateenv_aarch64
#define libc_feupdateenvl libc_feupdateenv_aarch64
static __always_inline void
libc_feholdsetround_aarch64 (fenv_t *envp, int round)
{
fpu_control_t fpcr;
fpu_fpsr_t fpsr;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
envp->__fpcr = fpcr;
envp->__fpsr = fpsr;
/* Check whether rounding modes are different. */
round = (fpcr ^ round) & _FPU_FPCR_RM_MASK;
/* Set new rounding mode if different. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_feholdsetround libc_feholdsetround_aarch64
#define libc_feholdsetroundf libc_feholdsetround_aarch64
#define libc_feholdsetroundl libc_feholdsetround_aarch64
static __always_inline void
libc_feresetround_aarch64 (fenv_t *envp)
{
fpu_control_t fpcr;
int round;
_FPU_GETCW (fpcr);
/* Check whether rounding modes are different. */
round = (envp->__fpcr ^ fpcr) & _FPU_FPCR_RM_MASK;
/* Restore the rounding mode if it was changed. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_feresetround libc_feresetround_aarch64
#define libc_feresetroundf libc_feresetround_aarch64
#define libc_feresetroundl libc_feresetround_aarch64
/* We have support for rounding mode context. */
#define HAVE_RM_CTX 1
static __always_inline void
libc_feholdsetround_aarch64_ctx (struct rm_ctx *ctx, int r)
{
fpu_control_t fpcr;
int round;
_FPU_GETCW (fpcr);
ctx->env.__fpcr = fpcr;
/* Check whether rounding modes are different. */
round = (fpcr ^ r) & _FPU_FPCR_RM_MASK;
ctx->updated_status = round != 0;
/* Set the rounding mode if changed. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_feholdsetround_ctx libc_feholdsetround_aarch64_ctx
#define libc_feholdsetroundf_ctx libc_feholdsetround_aarch64_ctx
#define libc_feholdsetroundl_ctx libc_feholdsetround_aarch64_ctx
static __always_inline void
libc_feresetround_aarch64_ctx (struct rm_ctx *ctx)
{
/* Restore the rounding mode if updated. */
if (__glibc_unlikely (ctx->updated_status))
_FPU_SETCW (ctx->env.__fpcr);
}
#define libc_feresetround_ctx libc_feresetround_aarch64_ctx
#define libc_feresetroundf_ctx libc_feresetround_aarch64_ctx
#define libc_feresetroundl_ctx libc_feresetround_aarch64_ctx
static __always_inline void
libc_feholdsetround_noex_aarch64_ctx (struct rm_ctx *ctx, int r)
{
fpu_control_t fpcr;
fpu_fpsr_t fpsr;
int round;
_FPU_GETCW (fpcr);
_FPU_GETFPSR (fpsr);
ctx->env.__fpcr = fpcr;
ctx->env.__fpsr = fpsr;
/* Check whether rounding modes are different. */
round = (fpcr ^ r) & _FPU_FPCR_RM_MASK;
ctx->updated_status = round != 0;
/* Set the rounding mode if changed. */
if (__glibc_unlikely (round != 0))
_FPU_SETCW (fpcr ^ round);
}
#define libc_feholdsetround_noex_ctx libc_feholdsetround_noex_aarch64_ctx
#define libc_feholdsetround_noexf_ctx libc_feholdsetround_noex_aarch64_ctx
#define libc_feholdsetround_noexl_ctx libc_feholdsetround_noex_aarch64_ctx
static __always_inline void
libc_feresetround_noex_aarch64_ctx (struct rm_ctx *ctx)
{
/* Restore the rounding mode if updated. */
if (__glibc_unlikely (ctx->updated_status))
_FPU_SETCW (ctx->env.__fpcr);
/* Write new FPSR to restore exception flags. */
_FPU_SETFPSR (ctx->env.__fpsr);
}
#define libc_feresetround_noex_ctx libc_feresetround_noex_aarch64_ctx
#define libc_feresetround_noexf_ctx libc_feresetround_noex_aarch64_ctx
#define libc_feresetround_noexl_ctx libc_feresetround_noex_aarch64_ctx
/* Use inline round and lround instructions. */
#define TOINT_INTRINSICS 1

8
sysdeps/arm/fenv_private.h
View File

@ -16,8 +16,8 @@
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef FENV_PRIVATE_H
#define FENV_PRIVATE_H 1
#ifndef ARM_FENV_PRIVATE_H
#define ARM_FENV_PRIVATE_H 1
#include <fenv.h>
#include <fpu_control.h>
@ -246,4 +246,6 @@ libc_fesetenv_vfp_ctx (struct rm_ctx *ctx)
#endif
#endif /* FENV_PRIVATE_H */
#include_next <fenv_private.h>
#endif /* ARM_FENV_PRIVATE_H */

7
sysdeps/arm/math_private.h
View File

@ -1,7 +0,0 @@
#ifndef ARM_MATH_PRIVATE_H
#define ARM_MATH_PRIVATE_H 1
#include "fenv_private.h"
#include_next <math_private.h>
#endif

417
sysdeps/generic/fenv_private.h Normal file
View File

@ -0,0 +1,417 @@
/* Optimized inline fenv.h functions for libm. Generic version.
Copyright (C) 2011-2018 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 <get-rounding-mode.h>
/* The standards only specify one variant of the fenv.h interfaces.
But at least for some architectures we can be more efficient if we
know what operations are going to be performed. Therefore we
define additional interfaces. By default they refer to the normal
interfaces. */
static __always_inline void
default_libc_feholdexcept (fenv_t *e)
{
(void) __feholdexcept (e);
}
#ifndef libc_feholdexcept
# define libc_feholdexcept default_libc_feholdexcept
#endif
#ifndef libc_feholdexceptf
# define libc_feholdexceptf default_libc_feholdexcept
#endif
#ifndef libc_feholdexceptl
# define libc_feholdexceptl default_libc_feholdexcept
#endif
static __always_inline void
default_libc_fesetround (int r)
{
(void) __fesetround (r);
}
#ifndef libc_fesetround
# define libc_fesetround default_libc_fesetround
#endif
#ifndef libc_fesetroundf
# define libc_fesetroundf default_libc_fesetround
#endif
#ifndef libc_fesetroundl
# define libc_fesetroundl default_libc_fesetround
#endif
static __always_inline void
default_libc_feholdexcept_setround (fenv_t *e, int r)
{
__feholdexcept (e);
__fesetround (r);
}
#ifndef libc_feholdexcept_setround
# define libc_feholdexcept_setround default_libc_feholdexcept_setround
#endif
#ifndef libc_feholdexcept_setroundf
# define libc_feholdexcept_setroundf default_libc_feholdexcept_setround
#endif
#ifndef libc_feholdexcept_setroundl
# define libc_feholdexcept_setroundl default_libc_feholdexcept_setround
#endif
#ifndef libc_feholdsetround_53bit
# define libc_feholdsetround_53bit libc_feholdsetround
#endif
#ifndef libc_fetestexcept
# define libc_fetestexcept fetestexcept
#endif
#ifndef libc_fetestexceptf
# define libc_fetestexceptf fetestexcept
#endif
#ifndef libc_fetestexceptl
# define libc_fetestexceptl fetestexcept
#endif
static __always_inline void
default_libc_fesetenv (fenv_t *e)
{
(void) __fesetenv (e);
}
#ifndef libc_fesetenv
# define libc_fesetenv default_libc_fesetenv
#endif
#ifndef libc_fesetenvf
# define libc_fesetenvf default_libc_fesetenv
#endif
#ifndef libc_fesetenvl
# define libc_fesetenvl default_libc_fesetenv
#endif
static __always_inline void
default_libc_feupdateenv (fenv_t *e)
{
(void) __feupdateenv (e);
}
#ifndef libc_feupdateenv
# define libc_feupdateenv default_libc_feupdateenv
#endif
#ifndef libc_feupdateenvf
# define libc_feupdateenvf default_libc_feupdateenv
#endif
#ifndef libc_feupdateenvl
# define libc_feupdateenvl default_libc_feupdateenv
#endif
#ifndef libc_feresetround_53bit
# define libc_feresetround_53bit libc_feresetround
#endif
static __always_inline int
default_libc_feupdateenv_test (fenv_t *e, int ex)
{
int ret = fetestexcept (ex);
__feupdateenv (e);
return ret;
}
#ifndef libc_feupdateenv_test
# define libc_feupdateenv_test default_libc_feupdateenv_test
#endif
#ifndef libc_feupdateenv_testf
# define libc_feupdateenv_testf default_libc_feupdateenv_test
#endif
#ifndef libc_feupdateenv_testl
# define libc_feupdateenv_testl default_libc_feupdateenv_test
#endif
/* Save and set the rounding mode. The use of fenv_t to store the old mode
allows a target-specific version of this function to avoid converting the
rounding mode from the fpu format. By default we have no choice but to
manipulate the entire env. */
#ifndef libc_feholdsetround
# define libc_feholdsetround libc_feholdexcept_setround
#endif
#ifndef libc_feholdsetroundf
# define libc_feholdsetroundf libc_feholdexcept_setroundf
#endif
#ifndef libc_feholdsetroundl
# define libc_feholdsetroundl libc_feholdexcept_setroundl
#endif
/* ... and the reverse. */
#ifndef libc_feresetround
# define libc_feresetround libc_feupdateenv
#endif
#ifndef libc_feresetroundf
# define libc_feresetroundf libc_feupdateenvf
#endif
#ifndef libc_feresetroundl
# define libc_feresetroundl libc_feupdateenvl
#endif
/* ... and a version that also discards exceptions. */
#ifndef libc_feresetround_noex
# define libc_feresetround_noex libc_fesetenv
#endif
#ifndef libc_feresetround_noexf
# define libc_feresetround_noexf libc_fesetenvf
#endif
#ifndef libc_feresetround_noexl
# define libc_feresetround_noexl libc_fesetenvl
#endif
#ifndef HAVE_RM_CTX
# define HAVE_RM_CTX 0
#endif
/* Default implementation using standard fenv functions.
Avoid unnecessary rounding mode changes by first checking the
current rounding mode. Note the use of __glibc_unlikely is
important for performance. */
static __always_inline void
default_libc_feholdsetround_ctx (struct rm_ctx *ctx, int round)
{
ctx->updated_status = false;
/* Update rounding mode only if different. */
if (__glibc_unlikely (round != get_rounding_mode ()))
{
ctx->updated_status = true;
__fegetenv (&ctx->env);
__fesetround (round);
}
}
static __always_inline void
default_libc_feresetround_ctx (struct rm_ctx *ctx)
{
/* Restore the rounding mode if updated. */
if (__glibc_unlikely (ctx->updated_status))
__feupdateenv (&ctx->env);
}
static __always_inline void
default_libc_feholdsetround_noex_ctx (struct rm_ctx *ctx, int round)
{
/* Save exception flags and rounding mode, and disable exception
traps. */
__feholdexcept (&ctx->env);
/* Update rounding mode only if different. */
if (__glibc_unlikely (round != get_rounding_mode ()))
__fesetround (round);
}
static __always_inline void
default_libc_feresetround_noex_ctx (struct rm_ctx *ctx)
{
/* Restore exception flags and rounding mode. */
__fesetenv (&ctx->env);
}
#if HAVE_RM_CTX
/* Set/Restore Rounding Modes only when necessary. If defined, these functions
set/restore floating point state only if the state needed within the lexical
block is different from the current state. This saves a lot of time when
the floating point unit is much slower than the fixed point units. */
# ifndef libc_feholdsetround_noex_ctx
# define libc_feholdsetround_noex_ctx libc_feholdsetround_ctx
# endif
# ifndef libc_feholdsetround_noexf_ctx
# define libc_feholdsetround_noexf_ctx libc_feholdsetroundf_ctx
# endif
# ifndef libc_feholdsetround_noexl_ctx
# define libc_feholdsetround_noexl_ctx libc_feholdsetroundl_ctx
# endif
# ifndef libc_feresetround_noex_ctx
# define libc_feresetround_noex_ctx libc_fesetenv_ctx
# endif
# ifndef libc_feresetround_noexf_ctx
# define libc_feresetround_noexf_ctx libc_fesetenvf_ctx
# endif
# ifndef libc_feresetround_noexl_ctx
# define libc_feresetround_noexl_ctx libc_fesetenvl_ctx
# endif
#else
# define libc_feholdsetround_ctx default_libc_feholdsetround_ctx
# define libc_feresetround_ctx default_libc_feresetround_ctx
# define libc_feholdsetround_noex_ctx default_libc_feholdsetround_noex_ctx
# define libc_feresetround_noex_ctx default_libc_feresetround_noex_ctx
# define libc_feholdsetroundf_ctx libc_feholdsetround_ctx
# define libc_feholdsetroundl_ctx libc_feholdsetround_ctx
# define libc_feresetroundf_ctx libc_feresetround_ctx
# define libc_feresetroundl_ctx libc_feresetround_ctx
# define libc_feholdsetround_noexf_ctx libc_feholdsetround_noex_ctx
# define libc_feholdsetround_noexl_ctx libc_feholdsetround_noex_ctx
# define libc_feresetround_noexf_ctx libc_feresetround_noex_ctx
# define libc_feresetround_noexl_ctx libc_feresetround_noex_ctx
#endif
#ifndef libc_feholdsetround_53bit_ctx
# define libc_feholdsetround_53bit_ctx libc_feholdsetround_ctx
#endif
#ifndef libc_feresetround_53bit_ctx
# define libc_feresetround_53bit_ctx libc_feresetround_ctx
#endif
#define SET_RESTORE_ROUND_GENERIC(RM,ROUNDFUNC,CLEANUPFUNC) \
struct rm_ctx ctx __attribute__((cleanup (CLEANUPFUNC ## _ctx))); \
ROUNDFUNC ## _ctx (&ctx, (RM))
/* Set the rounding mode within a lexical block. Restore the rounding mode to
the value at the start of the block. The exception mode must be preserved.
Exceptions raised within the block must be set in the exception flags.
Non-stop mode may be enabled inside the block. */
#define SET_RESTORE_ROUND(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround, libc_feresetround)
#define SET_RESTORE_ROUNDF(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetroundf, libc_feresetroundf)
#define SET_RESTORE_ROUNDL(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetroundl, libc_feresetroundl)
/* Set the rounding mode within a lexical block. Restore the rounding mode to
the value at the start of the block. The exception mode must be preserved.
Exceptions raised within the block must be discarded, and exception flags
are restored to the value at the start of the block.
Non-stop mode must be enabled inside the block. */
#define SET_RESTORE_ROUND_NOEX(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround_noex, \
libc_feresetround_noex)
#define SET_RESTORE_ROUND_NOEXF(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround_noexf, \
libc_feresetround_noexf)
#define SET_RESTORE_ROUND_NOEXL(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround_noexl, \
libc_feresetround_noexl)
/* Like SET_RESTORE_ROUND, but also set rounding precision to 53 bits. */
#define SET_RESTORE_ROUND_53BIT(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround_53bit, \
libc_feresetround_53bit)
/* When no floating-point exceptions are defined in <fenv.h>, make
feraiseexcept ignore its argument so that unconditional
feraiseexcept calls do not cause errors for undefined exceptions.
Define it to expand to a void expression so that any calls testing
the result of feraiseexcept do produce errors. */
#if FE_ALL_EXCEPT == 0
# define feraiseexcept(excepts) ((void) 0)
# define __feraiseexcept(excepts) ((void) 0)
#endif
/* Similarly, most <fenv.h> functions have trivial implementations in
the absence of support for floating-point exceptions and rounding
modes. */
#if !FE_HAVE_ROUNDING_MODES
# if FE_ALL_EXCEPT == 0
extern inline int
fegetenv (fenv_t *__e)
{
return 0;
}
extern inline int
__fegetenv (fenv_t *__e)
{
return 0;
}
extern inline int
feholdexcept (fenv_t *__e)
{
return 0;
}
extern inline int
__feholdexcept (fenv_t *__e)
{
return 0;
}
extern inline int
fesetenv (const fenv_t *__e)
{
return 0;
}
extern inline int
__fesetenv (const fenv_t *__e)
{
return 0;
}
extern inline int
feupdateenv (const fenv_t *__e)
{
return 0;
}
extern inline int
__feupdateenv (const fenv_t *__e)
{
return 0;
}
# endif
extern inline int
fegetround (void)
{
return FE_TONEAREST;
}
extern inline int
__fegetround (void)
{
return FE_TONEAREST;
}
extern inline int
fesetround (int __d)
{
return 0;
}
extern inline int
__fesetround (int __d)
{
return 0;
}
#endif
#endif /* fenv_private.h. */

395
sysdeps/generic/math_private.h
View File

@ -17,10 +17,9 @@
#define _MATH_PRIVATE_H_
#include <endian.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/types.h>
#include <fenv.h>
#include <get-rounding-mode.h>
/* Gather machine dependent _Floatn support. */
#include <bits/floatn.h>
@ -262,396 +261,6 @@ extern double __mpsin (double __x, double __dx, bool __range_reduce);
extern double __mpcos (double __x, double __dx, bool __range_reduce);
extern void __docos (double __x, double __dx, double __v[]);
/* The standards only specify one variant of the fenv.h interfaces.
But at least for some architectures we can be more efficient if we
know what operations are going to be performed. Therefore we
define additional interfaces. By default they refer to the normal
interfaces. */
static __always_inline void
default_libc_feholdexcept (fenv_t *e)
{
(void) __feholdexcept (e);
}
#ifndef libc_feholdexcept
# define libc_feholdexcept default_libc_feholdexcept
#endif
#ifndef libc_feholdexceptf
# define libc_feholdexceptf default_libc_feholdexcept
#endif
#ifndef libc_feholdexceptl
# define libc_feholdexceptl default_libc_feholdexcept
#endif
static __always_inline void
default_libc_fesetround (int r)
{
(void) __fesetround (r);
}
#ifndef libc_fesetround
# define libc_fesetround default_libc_fesetround
#endif
#ifndef libc_fesetroundf
# define libc_fesetroundf default_libc_fesetround
#endif
#ifndef libc_fesetroundl
# define libc_fesetroundl default_libc_fesetround
#endif
static __always_inline void
default_libc_feholdexcept_setround (fenv_t *e, int r)
{
__feholdexcept (e);
__fesetround (r);
}
#ifndef libc_feholdexcept_setround
# define libc_feholdexcept_setround default_libc_feholdexcept_setround
#endif
#ifndef libc_feholdexcept_setroundf
# define libc_feholdexcept_setroundf default_libc_feholdexcept_setround
#endif
#ifndef libc_feholdexcept_setroundl
# define libc_feholdexcept_setroundl default_libc_feholdexcept_setround
#endif
#ifndef libc_feholdsetround_53bit
# define libc_feholdsetround_53bit libc_feholdsetround
#endif
#ifndef libc_fetestexcept
# define libc_fetestexcept fetestexcept
#endif
#ifndef libc_fetestexceptf
# define libc_fetestexceptf fetestexcept
#endif
#ifndef libc_fetestexceptl
# define libc_fetestexceptl fetestexcept
#endif
static __always_inline void
default_libc_fesetenv (fenv_t *e)
{
(void) __fesetenv (e);
}
#ifndef libc_fesetenv
# define libc_fesetenv default_libc_fesetenv
#endif
#ifndef libc_fesetenvf
# define libc_fesetenvf default_libc_fesetenv
#endif
#ifndef libc_fesetenvl
# define libc_fesetenvl default_libc_fesetenv
#endif
static __always_inline void
default_libc_feupdateenv (fenv_t *e)
{
(void) __feupdateenv (e);
}
#ifndef libc_feupdateenv
# define libc_feupdateenv default_libc_feupdateenv
#endif
#ifndef libc_feupdateenvf
# define libc_feupdateenvf default_libc_feupdateenv
#endif
#ifndef libc_feupdateenvl
# define libc_feupdateenvl default_libc_feupdateenv
#endif
#ifndef libc_feresetround_53bit
# define libc_feresetround_53bit libc_feresetround
#endif
static __always_inline int
default_libc_feupdateenv_test (fenv_t *e, int ex)
{
int ret = fetestexcept (ex);
__feupdateenv (e);
return ret;
}
#ifndef libc_feupdateenv_test
# define libc_feupdateenv_test default_libc_feupdateenv_test
#endif
#ifndef libc_feupdateenv_testf
# define libc_feupdateenv_testf default_libc_feupdateenv_test
#endif
#ifndef libc_feupdateenv_testl
# define libc_feupdateenv_testl default_libc_feupdateenv_test
#endif
/* Save and set the rounding mode. The use of fenv_t to store the old mode
allows a target-specific version of this function to avoid converting the
rounding mode from the fpu format. By default we have no choice but to
manipulate the entire env. */
#ifndef libc_feholdsetround
# define libc_feholdsetround libc_feholdexcept_setround
#endif
#ifndef libc_feholdsetroundf
# define libc_feholdsetroundf libc_feholdexcept_setroundf
#endif
#ifndef libc_feholdsetroundl
# define libc_feholdsetroundl libc_feholdexcept_setroundl
#endif
/* ... and the reverse. */
#ifndef libc_feresetround
# define libc_feresetround libc_feupdateenv
#endif
#ifndef libc_feresetroundf
# define libc_feresetroundf libc_feupdateenvf
#endif
#ifndef libc_feresetroundl
# define libc_feresetroundl libc_feupdateenvl
#endif
/* ... and a version that also discards exceptions. */
#ifndef libc_feresetround_noex
# define libc_feresetround_noex libc_fesetenv
#endif
#ifndef libc_feresetround_noexf
# define libc_feresetround_noexf libc_fesetenvf
#endif
#ifndef libc_feresetround_noexl
# define libc_feresetround_noexl libc_fesetenvl
#endif
#ifndef HAVE_RM_CTX
# define HAVE_RM_CTX 0
#endif
/* Default implementation using standard fenv functions.
Avoid unnecessary rounding mode changes by first checking the
current rounding mode. Note the use of __glibc_unlikely is
important for performance. */
static __always_inline void
default_libc_feholdsetround_ctx (struct rm_ctx *ctx, int round)
{
ctx->updated_status = false;
/* Update rounding mode only if different. */
if (__glibc_unlikely (round != get_rounding_mode ()))
{
ctx->updated_status = true;
__fegetenv (&ctx->env);
__fesetround (round);
}
}
static __always_inline void
default_libc_feresetround_ctx (struct rm_ctx *ctx)
{
/* Restore the rounding mode if updated. */
if (__glibc_unlikely (ctx->updated_status))
__feupdateenv (&ctx->env);
}
static __always_inline void
default_libc_feholdsetround_noex_ctx (struct rm_ctx *ctx, int round)
{
/* Save exception flags and rounding mode, and disable exception
traps. */
__feholdexcept (&ctx->env);
/* Update rounding mode only if different. */
if (__glibc_unlikely (round != get_rounding_mode ()))
__fesetround (round);
}
static __always_inline void
default_libc_feresetround_noex_ctx (struct rm_ctx *ctx)
{
/* Restore exception flags and rounding mode. */
__fesetenv (&ctx->env);
}
#if HAVE_RM_CTX
/* Set/Restore Rounding Modes only when necessary. If defined, these functions
set/restore floating point state only if the state needed within the lexical
block is different from the current state. This saves a lot of time when
the floating point unit is much slower than the fixed point units. */
# ifndef libc_feholdsetround_noex_ctx
# define libc_feholdsetround_noex_ctx libc_feholdsetround_ctx
# endif
# ifndef libc_feholdsetround_noexf_ctx
# define libc_feholdsetround_noexf_ctx libc_feholdsetroundf_ctx
# endif
# ifndef libc_feholdsetround_noexl_ctx
# define libc_feholdsetround_noexl_ctx libc_feholdsetroundl_ctx
# endif
# ifndef libc_feresetround_noex_ctx
# define libc_feresetround_noex_ctx libc_fesetenv_ctx
# endif
# ifndef libc_feresetround_noexf_ctx
# define libc_feresetround_noexf_ctx libc_fesetenvf_ctx
# endif
# ifndef libc_feresetround_noexl_ctx
# define libc_feresetround_noexl_ctx libc_fesetenvl_ctx
# endif
#else
# define libc_feholdsetround_ctx default_libc_feholdsetround_ctx
# define libc_feresetround_ctx default_libc_feresetround_ctx
# define libc_feholdsetround_noex_ctx default_libc_feholdsetround_noex_ctx
# define libc_feresetround_noex_ctx default_libc_feresetround_noex_ctx
# define libc_feholdsetroundf_ctx libc_feholdsetround_ctx
# define libc_feholdsetroundl_ctx libc_feholdsetround_ctx
# define libc_feresetroundf_ctx libc_feresetround_ctx
# define libc_feresetroundl_ctx libc_feresetround_ctx
# define libc_feholdsetround_noexf_ctx libc_feholdsetround_noex_ctx
# define libc_feholdsetround_noexl_ctx libc_feholdsetround_noex_ctx
# define libc_feresetround_noexf_ctx libc_feresetround_noex_ctx
# define libc_feresetround_noexl_ctx libc_feresetround_noex_ctx
#endif
#ifndef libc_feholdsetround_53bit_ctx
# define libc_feholdsetround_53bit_ctx libc_feholdsetround_ctx
#endif
#ifndef libc_feresetround_53bit_ctx
# define libc_feresetround_53bit_ctx libc_feresetround_ctx
#endif
#define SET_RESTORE_ROUND_GENERIC(RM,ROUNDFUNC,CLEANUPFUNC) \
struct rm_ctx ctx __attribute__((cleanup (CLEANUPFUNC ## _ctx))); \
ROUNDFUNC ## _ctx (&ctx, (RM))
/* Set the rounding mode within a lexical block. Restore the rounding mode to
the value at the start of the block. The exception mode must be preserved.
Exceptions raised within the block must be set in the exception flags.
Non-stop mode may be enabled inside the block. */
#define SET_RESTORE_ROUND(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround, libc_feresetround)
#define SET_RESTORE_ROUNDF(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetroundf, libc_feresetroundf)
#define SET_RESTORE_ROUNDL(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetroundl, libc_feresetroundl)
/* Set the rounding mode within a lexical block. Restore the rounding mode to
the value at the start of the block. The exception mode must be preserved.
Exceptions raised within the block must be discarded, and exception flags
are restored to the value at the start of the block.
Non-stop mode must be enabled inside the block. */
#define SET_RESTORE_ROUND_NOEX(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround_noex, \
libc_feresetround_noex)
#define SET_RESTORE_ROUND_NOEXF(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround_noexf, \
libc_feresetround_noexf)
#define SET_RESTORE_ROUND_NOEXL(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround_noexl, \
libc_feresetround_noexl)
/* Like SET_RESTORE_ROUND, but also set rounding precision to 53 bits. */
#define SET_RESTORE_ROUND_53BIT(RM) \
SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround_53bit, \
libc_feresetround_53bit)
/* When no floating-point exceptions are defined in <fenv.h>, make
feraiseexcept ignore its argument so that unconditional
feraiseexcept calls do not cause errors for undefined exceptions.
Define it to expand to a void expression so that any calls testing
the result of feraiseexcept do produce errors. */
#if FE_ALL_EXCEPT == 0
# define feraiseexcept(excepts) ((void) 0)
# define __feraiseexcept(excepts) ((void) 0)
#endif
/* Similarly, most <fenv.h> functions have trivial implementations in
the absence of support for floating-point exceptions and rounding
modes. */
#if !FE_HAVE_ROUNDING_MODES
# if FE_ALL_EXCEPT == 0
extern inline int
fegetenv (fenv_t *__e)
{
return 0;
}
extern inline int
__fegetenv (fenv_t *__e)
{
return 0;
}
extern inline int
feholdexcept (fenv_t *__e)
{
return 0;
}
extern inline int
__feholdexcept (fenv_t *__e)
{
return 0;
}
extern inline int
fesetenv (const fenv_t *__e)
{
return 0;
}
extern inline int
__fesetenv (const fenv_t *__e)
{
return 0;
}
extern inline int
feupdateenv (const fenv_t *__e)
{
return 0;
}
extern inline int
__feupdateenv (const fenv_t *__e)
{
return 0;
}
# endif
extern inline int
fegetround (void)
{
return FE_TONEAREST;
}
extern inline int
__fegetround (void)
{
return FE_TONEAREST;
}
extern inline int
fesetround (int __d)
{
return 0;
}
extern inline int
__fesetround (int __d)
{
return 0;
}
#endif
#include <fenv_private.h>
#endif /* _MATH_PRIVATE_H_ */

7
sysdeps/i386/fpu/math_private.h
View File

@ -1,7 +0,0 @@
#ifndef I386_MATH_PRIVATE_H
#define I386_MATH_PRIVATE_H 1
#include "fenv_private.h"
#include_next <math_private.h>
#endif

110
sysdeps/mips/math_private.h → sysdeps/mips/fpu/fenv_private.h
View File

@ -16,22 +16,20 @@
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
#ifndef MIPS_FENV_PRIVATE_H
#define MIPS_FENV_PRIVATE_H 1
/* Inline functions to speed up the math library implementation. The
default versions of these routines are in generic/math_private.h
default versions of these routines are in generic/fenv_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>
# 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)
#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)
@ -46,9 +44,9 @@ libc_feholdexcept_mips (fenv_t *envp)
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
#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)
@ -65,9 +63,9 @@ libc_fesetround_mips (int 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
#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)
@ -88,13 +86,13 @@ libc_feholdexcept_setround_mips (fenv_t *envp, int 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_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
#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)
@ -106,9 +104,9 @@ libc_fesetenv_mips (fenv_t *envp)
_FPU_SETCW (envp->__fp_control_register);
}
# define libc_fesetenv libc_fesetenv_mips
# define libc_fesetenvf libc_fesetenv_mips
# define libc_fesetenvl libc_fesetenv_mips
#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)
@ -131,22 +129,22 @@ libc_feupdateenv_test_mips (fenv_t *envp, int excepts)
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
#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_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
#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)
@ -158,12 +156,12 @@ libc_fetestexcept_mips (int excepts)
return cw & excepts & FE_ALL_EXCEPT;
}
# define libc_fetestexcept libc_fetestexcept_mips
# define libc_fetestexceptf libc_fetestexcept_mips
# define libc_fetestexceptl libc_fetestexcept_mips
#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
#define HAVE_RM_CTX 1
static __always_inline void
libc_feholdexcept_setround_mips_ctx (struct rm_ctx *ctx, int round)
@ -188,18 +186,18 @@ libc_feholdexcept_setround_mips_ctx (struct rm_ctx *ctx, int round)
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
#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
#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)
@ -207,12 +205,12 @@ 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
#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)
@ -234,12 +232,10 @@ libc_feholdsetround_mips_ctx (struct rm_ctx *ctx, int round)
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
#include_next <math_private.h>
#define libc_feholdsetround_ctx libc_feholdsetround_mips_ctx
#define libc_feholdsetroundf_ctx libc_feholdsetround_mips_ctx
#define libc_feholdsetroundl_ctx libc_feholdsetround_mips_ctx
#include_next <fenv_private.h>
#endif

6
sysdeps/powerpc/fpu/fenv_private.h
View File

@ -16,8 +16,8 @@
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef FENV_PRIVATE_H
#define FENV_PRIVATE_H 1
#ifndef POWERPC_FENV_PRIVATE_H
#define POWERPC_FENV_PRIVATE_H 1
#include <fenv.h>
#include <fenv_libc.h>
@ -225,4 +225,6 @@ libc_feresetround_ppc_ctx (struct rm_ctx *ctx)
#define libc_feupdateenvf_ctx libc_feupdateenv_ppc_ctx
#define libc_feupdateenvl_ctx libc_feupdateenv_ppc_ctx
#include_next <fenv_private.h>
#endif

1
sysdeps/powerpc/fpu/math_private.h
View File

@ -22,7 +22,6 @@
#include <sysdep.h>
#include <ldsodefs.h>
#include <dl-procinfo.h>
#include <fenv_private.h>
#include_next <math_private.h>

6
sysdeps/riscv/rvf/math_private.h → sysdeps/riscv/rvf/fenv_private.h
View File

@ -16,8 +16,8 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef RISCV_MATH_PRIVATE_H
#define RISCV_MATH_PRIVATE_H 1
#ifndef RISCV_FENV_PRIVATE_H
#define RISCV_FENV_PRIVATE_H 1
#include <fenv.h>
#include <fpu_control.h>
@ -156,6 +156,6 @@ libc_feresetround_riscv (fenv_t *envp)
#define libc_feresetroundf libc_feresetround_riscv
#define libc_feresetroundl libc_feresetround_riscv
#include_next <math_private.h>
#include_next <fenv_private.h>
#endif

8
sysdeps/sparc/fpu/fenv_private.h
View File

@ -1,5 +1,5 @@
#ifndef FENV_PRIVATE_H
#define FENV_PRIVATE_H 1
#ifndef SPARC_FENV_PRIVATE_H
#define SPARC_FENV_PRIVATE_H 1
#include <fenv.h>
@ -179,4 +179,6 @@ libc_feholdsetround_sparc_ctx (struct rm_ctx *ctx, int round)
#define libc_feholdsetroundf_ctx libc_feholdsetround_sparc_ctx
#define libc_feholdsetroundl_ctx libc_feholdsetround_sparc_ctx
#endif /* FENV_PRIVATE_H */
#include_next <fenv_private.h>
#endif /* SPARC_FENV_PRIVATE_H */

7
sysdeps/sparc/fpu/math_private.h
View File

@ -1,7 +0,0 @@
#ifndef SPARC_MATH_PRIVATE_H
#define SPARC_MATH_PRIVATE_H 1
#include "fenv_private.h"
#include_next <math_private.h>
#endif /* SPARC_MATH_PRIVATE_H */

8
sysdeps/i386/fpu/fenv_private.h → sysdeps/x86/fpu/fenv_private.h
View File

@ -1,5 +1,5 @@
#ifndef FENV_PRIVATE_H
#define FENV_PRIVATE_H 1
#ifndef X86_FENV_PRIVATE_H
#define X86_FENV_PRIVATE_H 1
#include <bits/floatn.h>
#include <fenv.h>
@ -492,4 +492,6 @@ libc_feupdateenv_387_ctx (struct rm_ctx *ctx)
#undef __mxcsr
#endif /* FENV_PRIVATE_H */
#include_next <fenv_private.h>
#endif /* X86_FENV_PRIVATE_H */

1
sysdeps/x86_64/fpu/math_private.h
View File

@ -45,7 +45,6 @@
f = f__; \
} while (0)
#include <sysdeps/i386/fpu/fenv_private.h>
#include_next <math_private.h>
#ifdef __SSE4_1__