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67236aeb6e
This patch contains the miscellaneous math routines and headers we have
implemented for RISC-V. This includes things from <math.h> that aren't
completely ISA-generic, floating-point bit manipulation, and soft-fp
hooks.
2018-01-29 Palmer Dabbelt <palmer@sifive.com>
* sysdeps/riscv/bits/fenv.h: New file.
* sysdeps/riscv/e_sqrtl.c: Likewise.
* sysdeps/riscv/fpu_control.h: Likewise.
* sysdeps/riscv/math-tests.h: Likewise.
* sysdeps/riscv/nofpu/Implies: Likewise.
* sysdeps/riscv/sfp-machine.h: Likewise.
* sysdeps/riscv/tininess.h: Likewise.
43 lines
1.7 KiB
C
43 lines
1.7 KiB
C
/* Configuration for math tests. RISC-V version
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Copyright (C) 2014-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Copied from the aarch64 version
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* Trapping exceptions are not supported on RISC-V. */
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#define EXCEPTION_ENABLE_SUPPORTED(EXCEPT) ((EXCEPT) == 0)
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/* Despite not supporting trapping exceptions, we support setting
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floating-point exception flags on hard-float targets. These are not
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supported on soft-float targets. */
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#ifndef __riscv_flen
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# define EXCEPTION_TESTS_float 0
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# define EXCEPTION_TESTS_double 0
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# define EXCEPTION_TESTS_long_double 0
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#endif
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/* On soft-float targets we only support the "to nearest" rounding mode. */
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#ifndef __riscv_flen
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# define ROUNDING_TESTS_float(MODE) ((MODE) == FE_TONEAREST)
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# define ROUNDING_TESTS_double(MODE) ((MODE) == FE_TONEAREST)
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# define ROUNDING_TESTS_long_double(MODE) ((MODE) == FE_TONEAREST)
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#endif
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/* RISC-V floating-point instructions do not preserve NaN payloads. */
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#define SNAN_TESTS_PRESERVE_PAYLOAD 0
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#include_next <math-tests.h>
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