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b3f27d8150
This patch adds the narrowing fused multiply-add functions from TS 18661-1 / TS 18661-3 / C2X to glibc's libm: ffma, ffmal, dfmal, f32fmaf64, f32fmaf32x, f32xfmaf64 for all configurations; f32fmaf64x, f32fmaf128, f64fmaf64x, f64fmaf128, f32xfmaf64x, f32xfmaf128, f64xfmaf128 for configurations with _Float64x and _Float128; __f32fmaieee128 and __f64fmaieee128 aliases in the powerpc64le case (for calls to ffmal and dfmal when long double is IEEE binary128). Corresponding tgmath.h macro support is also added. The changes are mostly similar to those for the other narrowing functions previously added, especially that for sqrt, so the description of those generally applies to this patch as well. As with sqrt, I reused the same test inputs in auto-libm-test-in as for non-narrowing fma rather than adding extra or separate inputs for narrowing fma. The tests in libm-test-narrow-fma.inc also follow those for non-narrowing fma. The non-narrowing fma has a known bug (bug 6801) that it does not set errno on errors (overflow, underflow, Inf * 0, Inf - Inf). Rather than fixing this or having narrowing fma check for errors when non-narrowing does not (complicating the cases when narrowing fma can otherwise be an alias for a non-narrowing function), this patch does not attempt to check for errors from narrowing fma and set errno; the CHECK_NARROW_FMA macro is still present, but as a placeholder that does nothing, and this missing errno setting is considered to be covered by the existing bug rather than needing a separate open bug. missing-errno annotations are duly added to many of the auto-libm-test-in test inputs for fma. This completes adding all the new functions from TS 18661-1 to glibc, so will be followed by corresponding stdc-predef.h changes to define __STDC_IEC_60559_BFP__ and __STDC_IEC_60559_COMPLEX__, as the support for TS 18661-1 will be at a similar level to that for C standard floating-point facilities up to C11 (pragmas not implemented, but library functions done). (There are still further changes to be done to implement changes to the types of fromfp functions from N2548.) Tested as followed: natively with the full glibc testsuite for x86_64 (GCC 11, 7, 6) and x86 (GCC 11); with build-many-glibcs.py with GCC 11, 7 and 6; cross testing of math/ tests for powerpc64le, powerpc32 hard float, mips64 (all three ABIs, both hard and soft float). The different GCC versions are to cover the different cases in tgmath.h and tgmath.h tests properly (GCC 6 has _Float* only as typedefs in glibc headers, GCC 7 has proper _Float* support, GCC 8 adds __builtin_tgmath).
795 lines
36 KiB
Python
Executable File
795 lines
36 KiB
Python
Executable File
#!/usr/bin/python3
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# Generate tests for <tgmath.h> macros.
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# Copyright (C) 2017-2021 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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#
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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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#
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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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#
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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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# <https://www.gnu.org/licenses/>.
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# As glibc does not support decimal floating point, the types to
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# consider for generic parameters are standard and binary
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# floating-point types, and integer types which are treated as double.
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# The corresponding complex types may also be used (including complex
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# integer types, which are a GNU extension, but are currently disabled
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# here because they do not work properly with tgmath.h).
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# The proposed resolution to TS 18661-1 DR#9
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# <http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2149.htm#dr_9>
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# makes the <tgmath.h> rules for selecting a function to call
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# correspond to the usual arithmetic conversions (applied successively
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# to the arguments for generic parameters in order), which choose the
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# type whose set of values contains that of the other type (undefined
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# behavior if neither type's set of values is a superset of the
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# other), with interchange types being preferred to standard types
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# (long double, double, float), being preferred to extended types
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# (_Float128x, _Float64x, _Float32x).
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# For the standard and binary floating-point types supported by GCC 7
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# on any platform, this means the resulting type is the last of the
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# given types in one of the following orders, or undefined behavior if
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# types with both ibm128 and binary128 representation are specified.
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# If double = long double: _Float16, float, _Float32, _Float32x,
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# double, long double, _Float64, _Float64x, _Float128.
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# Otherwise: _Float16, float, _Float32, _Float32x, double, _Float64,
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# _Float64x, long double, _Float128.
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# We generate tests to verify the return type is exactly as expected.
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# We also verify that the function called is real or complex as
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# expected, and that it is called for the right floating-point format
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# (but it is OK to call a double function instead of a long double one
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# if they have the same format, for example). For all the formats
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# supported on any given configuration of glibc, the MANT_DIG value
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# uniquely determines the format.
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import string
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import sys
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class Type(object):
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"""A type that may be used as an argument for generic parameters."""
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# All possible argument or result types.
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all_types_list = []
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# All argument types.
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argument_types_list = []
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# All real argument types.
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real_argument_types_list = []
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# Real argument types that correspond to a standard floating type
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# (float, double or long double; not _FloatN or _FloatNx).
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standard_real_argument_types_list = []
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# Real argument types other than float, double and long double
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# (i.e., those that are valid as arguments to narrowing macros
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# returning _FloatN or _FloatNx).
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non_standard_real_argument_types_list = []
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# The real floating types by their order properties (which are
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# tuples giving the positions in both the possible orders above).
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real_types_order = {}
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# The type double.
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double_type = None
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# The type long double.
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long_double_type = None
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# The type _Complex double.
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complex_double_type = None
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# The type _Float64.
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float64_type = None
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# The type _Complex _Float64.
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complex_float64_type = None
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# The type _Float64x.
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float64x_type = None
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# The type _Float64x if available, otherwise _Float64.
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float32x_ext_type = None
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def __init__(self, name, suffix=None, mant_dig=None, condition='1',
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order=None, integer=False, complex=False, real_type=None):
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"""Initialize a Type object, creating any corresponding complex type
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in the process."""
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self.name = name
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self.suffix = suffix
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self.mant_dig = mant_dig
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self.condition = condition
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self.order = order
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self.integer = integer
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self.complex = complex
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if complex:
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self.complex_type = self
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self.real_type = real_type
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else:
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# complex_type filled in by the caller once created.
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self.complex_type = None
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self.real_type = self
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def register_type(self, internal):
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"""Record a type in the lists of all types."""
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Type.all_types_list.append(self)
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if not internal:
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Type.argument_types_list.append(self)
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if not self.complex:
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Type.real_argument_types_list.append(self)
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if not self.name.startswith('_Float'):
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Type.standard_real_argument_types_list.append(self)
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if self.name not in ('float', 'double', 'long double'):
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Type.non_standard_real_argument_types_list.append(self)
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if self.order is not None:
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Type.real_types_order[self.order] = self
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if self.name == 'double':
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Type.double_type = self
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if self.name == 'long double':
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Type.long_double_type = self
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if self.name == '_Complex double':
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Type.complex_double_type = self
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if self.name == '_Float64':
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Type.float64_type = self
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if self.name == '_Complex _Float64':
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Type.complex_float64_type = self
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if self.name == '_Float64x':
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Type.float64x_type = self
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if self.name == 'Float32x_ext':
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Type.float32x_ext_type = self
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@staticmethod
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def create_type(name, suffix=None, mant_dig=None, condition='1', order=None,
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integer=False, complex_name=None, complex_ok=True,
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internal=False):
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"""Create and register a Type object for a real type, creating any
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corresponding complex type in the process."""
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real_type = Type(name, suffix=suffix, mant_dig=mant_dig,
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condition=condition, order=order, integer=integer,
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complex=False)
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if complex_ok:
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if complex_name is None:
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complex_name = '_Complex %s' % name
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complex_type = Type(complex_name, condition=condition,
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integer=integer, complex=True,
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real_type=real_type)
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else:
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complex_type = None
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real_type.complex_type = complex_type
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real_type.register_type(internal)
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if complex_type is not None:
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complex_type.register_type(internal)
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def floating_type(self, floatn):
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"""Return the corresponding floating type."""
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if self.integer:
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if floatn:
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return (Type.complex_float64_type
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if self.complex
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else Type.float64_type)
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else:
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return (Type.complex_double_type
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if self.complex
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else Type.double_type)
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else:
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return self
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def real_floating_type(self, floatn):
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"""Return the corresponding real floating type."""
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return self.real_type.floating_type(floatn)
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def __str__(self):
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"""Return string representation of a type."""
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return self.name
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@staticmethod
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def init_types():
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"""Initialize all the known types."""
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Type.create_type('_Float16', 'f16', 'FLT16_MANT_DIG',
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complex_name='__CFLOAT16',
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condition='defined HUGE_VAL_F16', order=(0, 0))
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Type.create_type('float', 'f', 'FLT_MANT_DIG', order=(1, 1))
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Type.create_type('_Float32', 'f32', 'FLT32_MANT_DIG',
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complex_name='__CFLOAT32',
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condition='defined HUGE_VAL_F32', order=(2, 2))
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Type.create_type('_Float32x', 'f32x', 'FLT32X_MANT_DIG',
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complex_name='__CFLOAT32X',
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condition='defined HUGE_VAL_F32X', order=(3, 3))
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Type.create_type('double', '', 'DBL_MANT_DIG', order=(4, 4))
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Type.create_type('long double', 'l', 'LDBL_MANT_DIG', order=(5, 7))
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Type.create_type('_Float64', 'f64', 'FLT64_MANT_DIG',
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complex_name='__CFLOAT64',
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condition='defined HUGE_VAL_F64', order=(6, 5))
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Type.create_type('_Float64x', 'f64x', 'FLT64X_MANT_DIG',
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complex_name='__CFLOAT64X',
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condition='defined HUGE_VAL_F64X', order=(7, 6))
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Type.create_type('_Float128', 'f128', 'FLT128_MANT_DIG',
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complex_name='__CFLOAT128',
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condition='defined HUGE_VAL_F128', order=(8, 8))
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Type.create_type('char', integer=True)
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Type.create_type('signed char', integer=True)
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Type.create_type('unsigned char', integer=True)
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Type.create_type('short int', integer=True)
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Type.create_type('unsigned short int', integer=True)
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Type.create_type('int', integer=True)
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Type.create_type('unsigned int', integer=True)
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Type.create_type('long int', integer=True)
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Type.create_type('unsigned long int', integer=True)
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Type.create_type('long long int', integer=True)
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Type.create_type('unsigned long long int', integer=True)
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Type.create_type('__int128', integer=True,
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condition='defined __SIZEOF_INT128__')
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Type.create_type('unsigned __int128', integer=True,
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condition='defined __SIZEOF_INT128__')
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Type.create_type('enum e', integer=True, complex_ok=False)
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Type.create_type('_Bool', integer=True, complex_ok=False)
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Type.create_type('bit_field', integer=True, complex_ok=False)
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# Internal types represent the combination of long double with
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# _Float64 or _Float64x, for which the ordering depends on
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# whether long double has the same format as double.
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Type.create_type('long_double_Float64', None, 'LDBL_MANT_DIG',
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complex_name='complex_long_double_Float64',
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condition='defined HUGE_VAL_F64', order=(6, 7),
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internal=True)
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Type.create_type('long_double_Float64x', None, 'FLT64X_MANT_DIG',
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complex_name='complex_long_double_Float64x',
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condition='defined HUGE_VAL_F64X', order=(7, 7),
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internal=True)
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# An internal type for the argument type used by f32x*
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# narrowing macros (_Float64x if available, otherwise
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# _Float64).
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Type.create_type('Float32x_ext', None, 'FLT32X_EXT_MANT_DIG',
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complex_name='complex_Float32x_ext',
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condition='1', internal=True)
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@staticmethod
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def can_combine_types(types, floatn):
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"""Return a C preprocessor conditional for whether the given list of
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types can be used together as type-generic macro arguments."""
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have_long_double = False
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have_float128 = False
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for t in types:
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t = t.real_floating_type(floatn)
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if t.name == 'long double':
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have_long_double = True
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if t.name == '_Float128' or t.name == '_Float64x':
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have_float128 = True
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if have_long_double and have_float128:
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# If ibm128 format is in use for long double, both
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# _Float64x and _Float128 are binary128 and the types
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# cannot be combined.
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return '(LDBL_MANT_DIG != 106)'
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return '1'
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@staticmethod
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def combine_types(types, floatn):
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"""Return the result of combining a set of types."""
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have_complex = False
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combined = None
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for t in types:
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if t.complex:
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have_complex = True
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t = t.real_floating_type(floatn)
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if combined is None:
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combined = t
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else:
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order = (max(combined.order[0], t.order[0]),
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max(combined.order[1], t.order[1]))
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combined = Type.real_types_order[order]
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return combined.complex_type if have_complex else combined
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def list_product_initial(initial, lists):
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"""Return a list of lists, with an initial sequence from the first
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argument (a list of lists) followed by each sequence of one
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element from each successive element of the second argument."""
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if not lists:
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return initial
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return list_product_initial([a + [b] for a in initial for b in lists[0]],
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lists[1:])
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def list_product(lists):
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"""Return a list of lists, with each sequence of one element from each
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successive element of the argument."""
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return list_product_initial([[]], lists)
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try:
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trans_id = str.maketrans(' *', '_p')
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except AttributeError:
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trans_id = string.maketrans(' *', '_p')
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def var_for_type(name):
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"""Return the name of a variable with a given type (name)."""
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return 'var_%s' % name.translate(trans_id)
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def vol_var_for_type(name):
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"""Return the name of a variable with a given volatile type (name)."""
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return 'vol_var_%s' % name.translate(trans_id)
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def define_vars_for_type(name):
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"""Return the definitions of variables with a given type (name)."""
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if name == 'bit_field':
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struct_vars = define_vars_for_type('struct s');
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return '%s#define %s %s.bf\n' % (struct_vars,
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vol_var_for_type(name),
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vol_var_for_type('struct s'))
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return ('%s %s __attribute__ ((unused));\n'
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'%s volatile %s __attribute__ ((unused));\n'
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% (name, var_for_type(name), name, vol_var_for_type(name)))
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def if_cond_text(conds, text):
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"""Return the result of making some text conditional under #if. The
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text ends with a newline, as does the return value if not empty."""
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if '0' in conds:
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return ''
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conds = [c for c in conds if c != '1']
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conds = sorted(set(conds))
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if not conds:
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return text
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return '#if %s\n%s#endif\n' % (' && '.join(conds), text)
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class Tests(object):
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"""The state associated with testcase generation."""
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def __init__(self):
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"""Initialize a Tests object."""
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self.header_list = ['#define __STDC_WANT_IEC_60559_TYPES_EXT__\n'
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'#include <float.h>\n'
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'#include <stdbool.h>\n'
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'#include <stdint.h>\n'
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'#include <stdio.h>\n'
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'#include <string.h>\n'
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'#include <tgmath.h>\n'
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'\n'
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'struct test\n'
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' {\n'
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' void (*func) (void);\n'
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' const char *func_name;\n'
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' const char *test_name;\n'
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' int mant_dig;\n'
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' int narrow_mant_dig;\n'
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' };\n'
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'int num_pass, num_fail;\n'
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'volatile int called_mant_dig;\n'
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'const char *volatile called_func_name;\n'
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'enum e { E, F };\n'
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'struct s\n'
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' {\n'
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' int bf:2;\n'
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' };\n']
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float64_text = ('# if LDBL_MANT_DIG == DBL_MANT_DIG\n'
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'typedef _Float64 long_double_Float64;\n'
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'typedef __CFLOAT64 complex_long_double_Float64;\n'
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'# else\n'
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'typedef long double long_double_Float64;\n'
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'typedef _Complex long double '
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'complex_long_double_Float64;\n'
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'# endif\n')
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float64_text = if_cond_text([Type.float64_type.condition],
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float64_text)
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float64x_text = ('# if LDBL_MANT_DIG == DBL_MANT_DIG\n'
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'typedef _Float64x long_double_Float64x;\n'
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'typedef __CFLOAT64X complex_long_double_Float64x;\n'
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'# else\n'
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'typedef long double long_double_Float64x;\n'
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'typedef _Complex long double '
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'complex_long_double_Float64x;\n'
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'# endif\n')
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float64x_text = if_cond_text([Type.float64x_type.condition],
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float64x_text)
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float32x_ext_text = ('#ifdef HUGE_VAL_F64X\n'
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'typedef _Float64x Float32x_ext;\n'
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'typedef __CFLOAT64X complex_Float32x_ext;\n'
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'# define FLT32X_EXT_MANT_DIG FLT64X_MANT_DIG\n'
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'#else\n'
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'typedef _Float64 Float32x_ext;\n'
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'typedef __CFLOAT64 complex_Float32x_ext;\n'
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'# define FLT32X_EXT_MANT_DIG FLT64_MANT_DIG\n'
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'#endif\n')
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self.header_list.append(float64_text)
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self.header_list.append(float64x_text)
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self.header_list.append(float32x_ext_text)
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self.types_seen = set()
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for t in Type.all_types_list:
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self.add_type_var(t.name, t.condition)
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self.test_text_list = []
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self.test_array_list = []
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self.macros_seen = set()
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def add_type_var(self, name, cond):
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"""Add declarations of variables for a type."""
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if name in self.types_seen:
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|
return
|
|
t_vars = define_vars_for_type(name)
|
|
self.header_list.append(if_cond_text([cond], t_vars))
|
|
self.types_seen.add(name)
|
|
|
|
def add_tests(self, macro, ret, args, complex_func=None):
|
|
"""Add tests for a given tgmath.h macro, if that is the macro for
|
|
which tests are to be generated; otherwise just add it to the
|
|
list of macros for which test generation is supported."""
|
|
# 'c' means the function argument or return type is
|
|
# type-generic and complex only (a complex function argument
|
|
# may still have a real macro argument). 'g' means it is
|
|
# type-generic and may be real or complex; 'r' means it is
|
|
# type-generic and may only be real; 's' means the same as
|
|
# 'r', but restricted to float, double and long double.
|
|
self.macros_seen.add(macro)
|
|
if macro != self.macro:
|
|
return
|
|
have_complex = False
|
|
func = macro
|
|
narrowing = False
|
|
narrowing_std = False
|
|
if ret == 'c' or 'c' in args:
|
|
# Complex-only.
|
|
have_complex = True
|
|
complex_func = func
|
|
func = None
|
|
elif ret == 'g' or 'g' in args:
|
|
# Real and complex.
|
|
have_complex = True
|
|
if complex_func == None:
|
|
complex_func = 'c%s' % func
|
|
# For narrowing macros, compute narrow_args, the list of
|
|
# argument types for which there is an actual corresponding
|
|
# function. If none of those types exist, or the return type
|
|
# does not exist, then the macro is not defined and no tests
|
|
# of it can be run.
|
|
if ret == 'float':
|
|
narrowing = True
|
|
narrowing_std = True
|
|
narrow_cond = '1'
|
|
narrow_args = [Type.double_type, Type.long_double_type]
|
|
narrow_fallback = Type.double_type
|
|
elif ret == 'double':
|
|
narrowing = True
|
|
narrowing_std = True
|
|
narrow_cond = '1'
|
|
narrow_args = [Type.long_double_type]
|
|
narrow_fallback = Type.long_double_type
|
|
elif ret.startswith('_Float'):
|
|
narrowing = True
|
|
narrow_args = []
|
|
nret_type = None
|
|
narrow_fallback = None
|
|
for order, real_type in sorted(Type.real_types_order.items()):
|
|
if real_type.name == ret:
|
|
nret_type = real_type
|
|
elif nret_type and real_type.name.startswith('_Float'):
|
|
narrow_args.append(real_type)
|
|
if (narrow_fallback is None
|
|
and ret.endswith('x') == real_type.name.endswith('x')):
|
|
narrow_fallback = real_type
|
|
if narrow_args:
|
|
narrow_cond = ('(%s && (%s))'
|
|
% (nret_type.condition,
|
|
' || '.join(t.condition
|
|
for t in narrow_args)))
|
|
if narrow_fallback is None:
|
|
narrow_fallback = narrow_args[0]
|
|
if ret == '_Float32x':
|
|
narrow_fallback = Type.float32x_ext_type
|
|
else:
|
|
# No possible argument types, even conditionally.
|
|
narrow_cond = '0'
|
|
narrowing_nonstd = narrowing and not narrowing_std
|
|
types = [ret] + args
|
|
for t in types:
|
|
if t != 'c' and t != 'g' and t != 'r' and t != 's':
|
|
self.add_type_var(t, '1')
|
|
for t in Type.argument_types_list:
|
|
if t.integer:
|
|
continue
|
|
if t.complex and not have_complex:
|
|
continue
|
|
if func == None and not t.complex:
|
|
continue
|
|
if ret == 's' and t.name.startswith('_Float'):
|
|
continue
|
|
if narrowing and t not in narrow_args:
|
|
continue
|
|
if ret == 'c':
|
|
ret_name = t.complex_type.name
|
|
elif ret == 'g':
|
|
ret_name = t.name
|
|
elif ret == 'r' or ret == 's':
|
|
ret_name = t.real_type.name
|
|
else:
|
|
ret_name = ret
|
|
dummy_func_name = complex_func if t.complex else func
|
|
arg_list = []
|
|
arg_num = 0
|
|
for a in args:
|
|
if a == 'c':
|
|
arg_name = t.complex_type.name
|
|
elif a == 'g':
|
|
arg_name = t.name
|
|
elif a == 'r' or a == 's':
|
|
arg_name = t.real_type.name
|
|
else:
|
|
arg_name = a
|
|
arg_list.append('%s arg%d __attribute__ ((unused))'
|
|
% (arg_name, arg_num))
|
|
arg_num += 1
|
|
dummy_func = ('%s\n'
|
|
'(%s%s) (%s)\n'
|
|
'{\n'
|
|
' called_mant_dig = %s;\n'
|
|
' called_func_name = "%s";\n'
|
|
' return 0;\n'
|
|
'}\n' % (ret_name, dummy_func_name,
|
|
t.real_type.suffix, ', '.join(arg_list),
|
|
t.real_type.mant_dig, dummy_func_name))
|
|
if narrowing:
|
|
dummy_cond = [narrow_cond, t.condition]
|
|
else:
|
|
dummy_cond = [t.condition]
|
|
dummy_func = if_cond_text(dummy_cond, dummy_func)
|
|
self.test_text_list.append(dummy_func)
|
|
arg_types = []
|
|
for t in args:
|
|
if t == 'g' or t == 'c':
|
|
arg_types.append(Type.argument_types_list)
|
|
elif t == 'r':
|
|
if narrowing_std:
|
|
arg_types.append(Type.standard_real_argument_types_list)
|
|
elif narrowing:
|
|
arg_types.append(
|
|
Type.non_standard_real_argument_types_list)
|
|
else:
|
|
arg_types.append(Type.real_argument_types_list)
|
|
elif t == 's':
|
|
arg_types.append(Type.standard_real_argument_types_list)
|
|
arg_types_product = list_product(arg_types)
|
|
test_num = 0
|
|
for this_args in arg_types_product:
|
|
comb_type = Type.combine_types(this_args, narrowing_nonstd)
|
|
if narrowing:
|
|
# As long as there are no integer arguments, and as
|
|
# long as the chosen argument type is as wide as all
|
|
# the floating-point arguments passed, the semantics
|
|
# of the macro call do not depend on the exact
|
|
# function chosen. In particular, for f32x functions
|
|
# when _Float64x exists, the chosen type should differ
|
|
# for _Float32x and _Float64 arguments, but it is not
|
|
# always possible to distinguish those types before
|
|
# GCC 7 and the implementation does not attempt to do
|
|
# so before GCC 8.
|
|
narrow_mant_dig = comb_type.real_type.mant_dig
|
|
for arg_type in this_args:
|
|
if arg_type.integer:
|
|
narrow_mant_dig = 0
|
|
else:
|
|
narrow_mant_dig = 0
|
|
if (narrowing
|
|
and comb_type not in narrow_args
|
|
and narrow_fallback is not None):
|
|
comb_type = narrow_fallback
|
|
can_comb = Type.can_combine_types(this_args, narrowing_nonstd)
|
|
all_conds = [t.condition for t in this_args]
|
|
all_conds.append(can_comb)
|
|
if narrowing:
|
|
all_conds.append(narrow_cond)
|
|
any_complex = func == None
|
|
for t in this_args:
|
|
if t.complex:
|
|
any_complex = True
|
|
func_name = complex_func if any_complex else func
|
|
test_name = '%s (%s)' % (macro,
|
|
', '.join([t.name for t in this_args]))
|
|
test_func_name = 'test_%s_%d' % (macro, test_num)
|
|
test_num += 1
|
|
mant_dig = comb_type.real_type.mant_dig
|
|
test_text = '%s, "%s", "%s", %s, %s' % (test_func_name, func_name,
|
|
test_name, mant_dig,
|
|
narrow_mant_dig)
|
|
test_text = ' { %s },\n' % test_text
|
|
test_text = if_cond_text(all_conds, test_text)
|
|
self.test_array_list.append(test_text)
|
|
call_args = []
|
|
call_arg_pos = 0
|
|
for t in args:
|
|
if t == 'g' or t == 'c' or t == 'r' or t == 's':
|
|
type = this_args[call_arg_pos].name
|
|
call_arg_pos += 1
|
|
else:
|
|
type = t
|
|
call_args.append(vol_var_for_type(type))
|
|
call_args_text = ', '.join(call_args)
|
|
if ret == 'g':
|
|
ret_type = comb_type.name
|
|
elif ret == 'r' or ret == 's':
|
|
ret_type = comb_type.real_type.name
|
|
elif ret == 'c':
|
|
ret_type = comb_type.complex_type.name
|
|
else:
|
|
ret_type = ret
|
|
call_text = '%s (%s)' % (macro, call_args_text)
|
|
test_func_text = ('static void\n'
|
|
'%s (void)\n'
|
|
'{\n'
|
|
' extern typeof (%s) %s '
|
|
'__attribute__ ((unused));\n'
|
|
' %s = %s;\n'
|
|
'}\n' % (test_func_name, call_text,
|
|
var_for_type(ret_type),
|
|
vol_var_for_type(ret_type), call_text))
|
|
test_func_text = if_cond_text(all_conds, test_func_text)
|
|
self.test_text_list.append(test_func_text)
|
|
|
|
def add_all_tests(self, macro):
|
|
"""Add tests for the given tgmath.h macro, if any, and generate the
|
|
list of all supported macros."""
|
|
self.macro = macro
|
|
# C99/C11 real-only functions.
|
|
self.add_tests('atan2', 'r', ['r', 'r'])
|
|
self.add_tests('cbrt', 'r', ['r'])
|
|
self.add_tests('ceil', 'r', ['r'])
|
|
self.add_tests('copysign', 'r', ['r', 'r'])
|
|
self.add_tests('erf', 'r', ['r'])
|
|
self.add_tests('erfc', 'r', ['r'])
|
|
self.add_tests('exp2', 'r', ['r'])
|
|
self.add_tests('expm1', 'r', ['r'])
|
|
self.add_tests('fdim', 'r', ['r', 'r'])
|
|
self.add_tests('floor', 'r', ['r'])
|
|
self.add_tests('fma', 'r', ['r', 'r', 'r'])
|
|
self.add_tests('fmax', 'r', ['r', 'r'])
|
|
self.add_tests('fmin', 'r', ['r', 'r'])
|
|
self.add_tests('fmod', 'r', ['r', 'r'])
|
|
self.add_tests('frexp', 'r', ['r', 'int *'])
|
|
self.add_tests('hypot', 'r', ['r', 'r'])
|
|
self.add_tests('ilogb', 'int', ['r'])
|
|
self.add_tests('ldexp', 'r', ['r', 'int'])
|
|
self.add_tests('lgamma', 'r', ['r'])
|
|
self.add_tests('llrint', 'long long int', ['r'])
|
|
self.add_tests('llround', 'long long int', ['r'])
|
|
# log10 is real-only in ISO C, but supports complex arguments
|
|
# as a GNU extension.
|
|
self.add_tests('log10', 'g', ['g'])
|
|
self.add_tests('log1p', 'r', ['r'])
|
|
self.add_tests('log2', 'r', ['r'])
|
|
self.add_tests('logb', 'r', ['r'])
|
|
self.add_tests('lrint', 'long int', ['r'])
|
|
self.add_tests('lround', 'long int', ['r'])
|
|
self.add_tests('nearbyint', 'r', ['r'])
|
|
self.add_tests('nextafter', 'r', ['r', 'r'])
|
|
self.add_tests('nexttoward', 's', ['s', 'long double'])
|
|
self.add_tests('remainder', 'r', ['r', 'r'])
|
|
self.add_tests('remquo', 'r', ['r', 'r', 'int *'])
|
|
self.add_tests('rint', 'r', ['r'])
|
|
self.add_tests('round', 'r', ['r'])
|
|
self.add_tests('scalbn', 'r', ['r', 'int'])
|
|
self.add_tests('scalbln', 'r', ['r', 'long int'])
|
|
self.add_tests('tgamma', 'r', ['r'])
|
|
self.add_tests('trunc', 'r', ['r'])
|
|
# C99/C11 real-and-complex functions.
|
|
self.add_tests('acos', 'g', ['g'])
|
|
self.add_tests('asin', 'g', ['g'])
|
|
self.add_tests('atan', 'g', ['g'])
|
|
self.add_tests('acosh', 'g', ['g'])
|
|
self.add_tests('asinh', 'g', ['g'])
|
|
self.add_tests('atanh', 'g', ['g'])
|
|
self.add_tests('cos', 'g', ['g'])
|
|
self.add_tests('sin', 'g', ['g'])
|
|
self.add_tests('tan', 'g', ['g'])
|
|
self.add_tests('cosh', 'g', ['g'])
|
|
self.add_tests('sinh', 'g', ['g'])
|
|
self.add_tests('tanh', 'g', ['g'])
|
|
self.add_tests('exp', 'g', ['g'])
|
|
self.add_tests('log', 'g', ['g'])
|
|
self.add_tests('pow', 'g', ['g', 'g'])
|
|
self.add_tests('sqrt', 'g', ['g'])
|
|
self.add_tests('fabs', 'r', ['g'], 'cabs')
|
|
# C99/C11 complex-only functions.
|
|
self.add_tests('carg', 'r', ['c'])
|
|
self.add_tests('cimag', 'r', ['c'])
|
|
self.add_tests('conj', 'c', ['c'])
|
|
self.add_tests('cproj', 'c', ['c'])
|
|
self.add_tests('creal', 'r', ['c'])
|
|
# TS 18661-1 functions.
|
|
self.add_tests('roundeven', 'r', ['r'])
|
|
self.add_tests('nextup', 'r', ['r'])
|
|
self.add_tests('nextdown', 'r', ['r'])
|
|
self.add_tests('fminmag', 'r', ['r', 'r'])
|
|
self.add_tests('fmaxmag', 'r', ['r', 'r'])
|
|
self.add_tests('llogb', 'long int', ['r'])
|
|
self.add_tests('fromfp', 'intmax_t', ['r', 'int', 'unsigned int'])
|
|
self.add_tests('fromfpx', 'intmax_t', ['r', 'int', 'unsigned int'])
|
|
self.add_tests('ufromfp', 'uintmax_t', ['r', 'int', 'unsigned int'])
|
|
self.add_tests('ufromfpx', 'uintmax_t', ['r', 'int', 'unsigned int'])
|
|
for fn, args in (('add', 2), ('div', 2), ('fma', 3), ('mul', 2),
|
|
('sqrt', 1), ('sub', 2)):
|
|
for ret, prefix in (('float', 'f'),
|
|
('double', 'd'),
|
|
('_Float16', 'f16'),
|
|
('_Float32', 'f32'),
|
|
('_Float64', 'f64'),
|
|
('_Float128', 'f128'),
|
|
('_Float32x', 'f32x'),
|
|
('_Float64x', 'f64x')):
|
|
self.add_tests(prefix + fn, ret, ['r'] * args)
|
|
# Miscellaneous functions.
|
|
self.add_tests('scalb', 's', ['s', 's'])
|
|
|
|
def tests_text(self):
|
|
"""Return the text of the generated testcase."""
|
|
test_list = [''.join(self.test_text_list),
|
|
'static const struct test tests[] =\n'
|
|
' {\n',
|
|
''.join(self.test_array_list),
|
|
' };\n']
|
|
footer_list = ['static int\n'
|
|
'do_test (void)\n'
|
|
'{\n'
|
|
' for (size_t i = 0;\n'
|
|
' i < sizeof (tests) / sizeof (tests[0]);\n'
|
|
' i++)\n'
|
|
' {\n'
|
|
' called_mant_dig = 0;\n'
|
|
' called_func_name = "";\n'
|
|
' tests[i].func ();\n'
|
|
' if (called_mant_dig == tests[i].mant_dig\n'
|
|
' && strcmp (called_func_name,\n'
|
|
' tests[i].func_name) == 0)\n'
|
|
' num_pass++;\n'
|
|
'#if !__GNUC_PREREQ (8, 0)\n'
|
|
' else if (tests[i].narrow_mant_dig > 0\n'
|
|
' && (called_mant_dig\n'
|
|
' >= tests[i].narrow_mant_dig)\n'
|
|
' && strcmp (called_func_name,\n'
|
|
' tests[i].func_name) == 0)\n'
|
|
' {\n'
|
|
' num_pass++;\n'
|
|
' printf ("Test %zu (%s):\\n"\n'
|
|
' " Expected: %s precision %d\\n"\n'
|
|
' " Actual: %s precision %d\\n"\n'
|
|
' " (OK with old GCC)\\n\\n",\n'
|
|
' i, tests[i].test_name,\n'
|
|
' tests[i].func_name,\n'
|
|
' tests[i].mant_dig,\n'
|
|
' called_func_name, called_mant_dig);\n'
|
|
' }\n'
|
|
'#endif\n'
|
|
' else\n'
|
|
' {\n'
|
|
' num_fail++;\n'
|
|
' printf ("Test %zu (%s):\\n"\n'
|
|
' " Expected: %s precision %d\\n"\n'
|
|
' " Actual: %s precision %d\\n\\n",\n'
|
|
' i, tests[i].test_name,\n'
|
|
' tests[i].func_name,\n'
|
|
' tests[i].mant_dig,\n'
|
|
' called_func_name, called_mant_dig);\n'
|
|
' }\n'
|
|
' }\n'
|
|
' printf ("%d pass, %d fail\\n", num_pass, num_fail);\n'
|
|
' return num_fail != 0;\n'
|
|
'}\n'
|
|
'\n'
|
|
'#include <support/test-driver.c>']
|
|
return ''.join(self.header_list + test_list + footer_list)
|
|
|
|
def check_macro_list(self, macro_list):
|
|
"""Check the list of macros that can be tested."""
|
|
if self.macros_seen != set(macro_list):
|
|
print('error: macro list mismatch')
|
|
sys.exit(1)
|
|
|
|
def main():
|
|
"""The main entry point."""
|
|
Type.init_types()
|
|
t = Tests()
|
|
if sys.argv[1] == 'check-list':
|
|
macro = None
|
|
macro_list = sys.argv[2:]
|
|
else:
|
|
macro = sys.argv[1]
|
|
macro_list = []
|
|
t.add_all_tests(macro)
|
|
if macro:
|
|
print(t.tests_text())
|
|
else:
|
|
t.check_macro_list(macro_list)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|