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- /*
- * Copyright (C) 2014-2022 Free Software Foundation, Inc.
- *
- * This file is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 3, or (at your option) any
- * later version.
- *
- * This file 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
- * General Public License for more details.
- *
- * Under Section 7 of GPL version 3, you are granted additional
- * permissions described in the GCC Runtime Library Exception, version
- * 3.1, as published by the Free Software Foundation.
- *
- * You should have received a copy of the GNU General Public License and
- * a copy of the GCC Runtime Library Exception along with this program;
- * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
- * <http://www.gnu.org/licenses/>.
- */
- /* Enable flush-to-zero support for -ffast-math on VFP targets. */
- #ifndef __SOFTFP__
- #define FPSCR_FZ (1 << 24)
- static void __attribute__((constructor))
- __arm_set_fast_math (void)
- {
- unsigned int fpscr_save;
- /* Set the FZ (flush-to-zero) bit in FPSCR. */
- __asm__("vmrs %0, fpscr" : "=r" (fpscr_save));
- fpscr_save |= FPSCR_FZ;
- __asm__("vmsr fpscr, %0" : : "r" (fpscr_save));
- }
- #endif /* __SOFTFP__ */
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