mirror of
https://sourceware.org/git/glibc.git
synced 2025-12-08 02:02:23 +03:00
427c25278d
clang does not support the %v to select the AVX encoding, nor the '%d' asm contrain, and for AVX build it requires all 3 arguments. This patch add a new internal header, math-inline-asm.h, that adds functions to abstract the inline asm required differences between gcc and clang. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/* Test exception in current environment.
|
|
Copyright (C) 1997-2025 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <fenv.h>
|
|
#include <unistd.h>
|
|
#include <ldsodefs.h>
|
|
#include <math-inline-asm.h>
|
|
|
|
int
|
|
__fetestexcept (int excepts)
|
|
{
|
|
short temp;
|
|
unsigned int xtemp = 0;
|
|
|
|
/* Get current exceptions. */
|
|
__asm__ ("fnstsw %0" : "=a" (temp));
|
|
|
|
/* If the CPU supports SSE we test the MXCSR as well. */
|
|
if (CPU_FEATURE_USABLE (SSE))
|
|
stmxcsr_inline_asm (&xtemp);
|
|
|
|
return (temp | xtemp) & excepts & FE_ALL_EXCEPT;
|
|
}
|
|
libm_hidden_def (__fetestexcept)
|
|
weak_alias (__fetestexcept, fetestexcept)
|
|
libm_hidden_def (fetestexcept)
|