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8d375dafe2
This patch makes math-tests.h, as used to describe support of given floating-point types for sNaNs, rounding modes and exceptions, handle distinguishing _Float128 from long double. This is needed for x86_64, where if building with GCC 6 or earlier there is no __builtin_nansq, so no way to get a signaling NaN of _Float128 type, so associated tests cannot be run (although glibc itself works fine, as there is never any need to create such an sNaN with a built-in function inside glibc). Tested for x86_64 (in conjunction with float128 patches). * sysdeps/generic/math-tests.h: Include <bits/floatn.h>. (MATH_TESTS_TG): New macro. (SNAN_TESTS_float128): Likewise. (ROUNDING_TESTS_float128): Likewise. (EXCEPTION_TESTS_float128): Likewise. (SNAN_TESTS): Define using MATH_TESTS_TG. (ROUNDING_TESTS): Likewise. (EXCEPTION_TESTS): Likewise.
125 lines
4.5 KiB
C
125 lines
4.5 KiB
C
/* Configuration for math tests. Generic version.
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Copyright (C) 2013-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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#include <bits/floatn.h>
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/* Expand the appropriate macro for whether to enable tests for a
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given type. */
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#if __HAVE_DISTINCT_FLOAT128
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# define MATH_TESTS_TG(PREFIX, ARGS, TYPE) \
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(sizeof (TYPE) == sizeof (float) ? PREFIX ## float ARGS \
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: sizeof (TYPE) == sizeof (double) ? PREFIX ## double ARGS \
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: __builtin_types_compatible_p (TYPE, _Float128) ? PREFIX ## float128 ARGS \
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: PREFIX ## long_double ARGS)
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# else
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# define MATH_TESTS_TG(PREFIX, ARGS, TYPE) \
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(sizeof (TYPE) == sizeof (float) ? PREFIX ## float ARGS \
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: sizeof (TYPE) == sizeof (double) ? PREFIX ## double ARGS \
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: PREFIX ## long_double ARGS)
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#endif
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/* Indicate whether to run tests involving sNaN values for the float, double,
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and long double C data types, respectively. All are run unless
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overridden. */
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#ifndef SNAN_TESTS_float
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# define SNAN_TESTS_float 1
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#endif
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#ifndef SNAN_TESTS_double
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# define SNAN_TESTS_double 1
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#endif
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#ifndef SNAN_TESTS_long_double
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# define SNAN_TESTS_long_double 1
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#endif
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#ifndef SNAN_TESTS_float128
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# define SNAN_TESTS_float128 1
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#endif
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/* Return nonzero value if to run tests involving sNaN values for X. */
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#define SNAN_TESTS(x) MATH_TESTS_TG (SNAN_TESTS_, , x)
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/* Indicate whether to run tests involving type casts of sNaN values. These
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are run unless overridden. */
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#ifndef SNAN_TESTS_TYPE_CAST
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# define SNAN_TESTS_TYPE_CAST 1
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#endif
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/* Indicate whether operations on signaling NaNs preserve the payload
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(if possible; it is not possible with a zero payload if the high
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bit is set for signaling NaNs) when generating a quiet NaN, and
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this should be tested. */
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#ifndef SNAN_TESTS_PRESERVE_PAYLOAD
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# define SNAN_TESTS_PRESERVE_PAYLOAD 1
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#endif
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/* Indicate whether to run tests involving a given rounding mode for a
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given floating-point type, given that fesetround succeeds for that
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mode. All are run if fesetround succeeds unless overridden. */
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#ifndef ROUNDING_TESTS_float
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# define ROUNDING_TESTS_float(MODE) 1
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#endif
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#ifndef ROUNDING_TESTS_double
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# define ROUNDING_TESTS_double(MODE) 1
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#endif
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#ifndef ROUNDING_TESTS_long_double
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# define ROUNDING_TESTS_long_double(MODE) 1
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#endif
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#ifndef ROUNDING_TESTS_float128
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# define ROUNDING_TESTS_float128(MODE) 1
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#endif
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#define ROUNDING_TESTS(TYPE, MODE) \
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MATH_TESTS_TG (ROUNDING_TESTS_, (MODE), TYPE)
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/* Indicate whether to run tests of floating-point exceptions for a
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given floating-point type, given that the exception macros are
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defined. All are run unless overridden. */
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#ifndef EXCEPTION_TESTS_float
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# define EXCEPTION_TESTS_float 1
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#endif
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#ifndef EXCEPTION_TESTS_double
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# define EXCEPTION_TESTS_double 1
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#endif
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#ifndef EXCEPTION_TESTS_long_double
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# define EXCEPTION_TESTS_long_double 1
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#endif
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#ifndef EXCEPTION_TESTS_float128
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# define EXCEPTION_TESTS_float128 1
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#endif
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#define EXCEPTION_TESTS(TYPE) MATH_TESTS_TG (EXCEPTION_TESTS_, , TYPE)
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/* Indicate whether the given exception trap(s) can be enabled
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in feenableexcept. If non-zero, the traps are always supported.
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If zero, traps may or may not be supported depending on the
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target (this can be determined by checking the return value
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of feenableexcept). This enables skipping of tests which use
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traps. By default traps are supported unless overridden. */
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#ifndef EXCEPTION_ENABLE_SUPPORTED
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# define EXCEPTION_ENABLE_SUPPORTED(EXCEPT) \
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(EXCEPTION_TESTS_float || EXCEPTION_TESTS_double)
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#endif
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/* Indicate whether exception traps, if enabled, occur whenever an
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exception flag is set explicitly, so it is not possible to set flag
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bits with traps enabled without causing traps to be taken. If
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traps cannot be enabled, the value of this macro does not
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matter. */
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#ifndef EXCEPTION_SET_FORCES_TRAP
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# define EXCEPTION_SET_FORCES_TRAP 0
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#endif
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