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fa562680ce
* math/gen-tgmath-tests.py (Tests.__init__): Define __STDC_WANT_IEC_60559_TYPES_EXT__ at start of generated file.
614 lines
27 KiB
Python
Executable File
614 lines
27 KiB
Python
Executable File
#!/usr/bin/python
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# Generate tests for <tgmath.h> macros.
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# Copyright (C) 2017 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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# <http://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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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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# 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 _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 _Float64x.
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float64x_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.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 == '_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 == '_Float64x':
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Type.float64x_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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# Complex integer types currently disabled because of problems
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# in tgmath.h.
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if complex_ok and not integer:
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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):
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"""Return the corresponding floating type."""
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if self.integer:
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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):
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"""Return the corresponding real floating type."""
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return self.real_type.floating_type()
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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('enum e', integer=True, complex_ok=False)
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Type.create_type('_Bool', 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', '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', '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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@staticmethod
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def can_combine_types(types):
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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()
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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):
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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()
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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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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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' };\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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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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self.header_list.append(float64_text)
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self.header_list.append(float64x_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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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
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t_vars = define_vars_for_type(name)
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self.header_list.append(if_cond_text([cond], t_vars))
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self.types_seen.add(name)
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def add_tests(self, macro, ret, args, complex_func=None):
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"""Add tests for a given tgmath.h macro."""
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# 'c' means the function argument or return type is
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# type-generic and complex only (a complex function argument
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# may still have a real macro argument). 'g' means it is
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# type-generic and may be real or complex; 'r' means it is
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# type-generic and may only be real; 's' means the same as
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# 'r', but restricted to float, double and long double.
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have_complex = False
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func = macro
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if ret == 'c' or 'c' in args:
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# Complex-only.
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have_complex = True
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complex_func = func
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func = None
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elif ret == 'g' or 'g' in args:
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# Real and complex.
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have_complex = True
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if complex_func == None:
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complex_func = 'c%s' % func
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types = [ret] + args
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for t in types:
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if t != 'c' and t != 'g' and t != 'r' and t != 's':
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self.add_type_var(t, '1')
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for t in Type.argument_types_list:
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if t.integer:
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continue
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if t.complex and not have_complex:
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continue
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if func == None and not t.complex:
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continue
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if ret == 's' and t.name.startswith('_Float'):
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continue
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if ret == 'c':
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ret_name = t.complex_type.name
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elif ret == 'g':
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ret_name = t.name
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elif ret == 'r' or ret == 's':
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ret_name = t.real_type.name
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else:
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ret_name = ret
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dummy_func_name = complex_func if t.complex else func
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arg_list = []
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arg_num = 0
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for a in args:
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if a == 'c':
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arg_name = t.complex_type.name
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elif a == 'g':
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arg_name = t.name
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elif a == 'r' or a == 's':
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arg_name = t.real_type.name
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else:
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arg_name = a
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arg_list.append('%s arg%d __attribute__ ((unused))'
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% (arg_name, arg_num))
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arg_num += 1
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dummy_func = ('%s\n'
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'(%s%s) (%s)\n'
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'{\n'
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' called_mant_dig = %s;\n'
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' called_func_name = "%s";\n'
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' return 0;\n'
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'}\n' % (ret_name, dummy_func_name,
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t.real_type.suffix, ', '.join(arg_list),
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t.real_type.mant_dig, dummy_func_name))
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dummy_func = if_cond_text([t.condition], dummy_func)
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self.test_text_list.append(dummy_func)
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arg_types = []
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for t in args:
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if t == 'g' or t == 'c':
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arg_types.append(Type.argument_types_list)
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elif t == 'r':
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arg_types.append(Type.real_argument_types_list)
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elif t == 's':
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arg_types.append(Type.standard_real_argument_types_list)
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arg_types_product = list_product(arg_types)
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test_num = 0
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for this_args in arg_types_product:
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comb_type = Type.combine_types(this_args)
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can_comb = Type.can_combine_types(this_args)
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all_conds = [t.condition for t in this_args]
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all_conds.append(can_comb)
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any_complex = func == None
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for t in this_args:
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if t.complex:
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any_complex = True
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func_name = complex_func if any_complex else func
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test_name = '%s (%s)' % (macro,
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', '.join([t.name for t in this_args]))
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test_func_name = 'test_%s_%d' % (macro, test_num)
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test_num += 1
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mant_dig = comb_type.real_type.mant_dig
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test_text = '%s, "%s", "%s", %s' % (test_func_name, func_name,
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test_name, mant_dig)
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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):
|
|
"""Add tests for all tgmath.h macros."""
|
|
# 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'])
|
|
self.add_tests('totalorder', 'int', ['r', 'r'])
|
|
self.add_tests('totalordermag', 'int', ['r', 'r'])
|
|
# The functions that round their result to a narrower type,
|
|
# and the associated type-generic macros, are not yet
|
|
# supported by this script or by glibc.
|
|
# 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'
|
|
' 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 main():
|
|
"""The main entry point."""
|
|
Type.init_types()
|
|
t = Tests()
|
|
t.add_all_tests()
|
|
print(t.tests_text())
|
|
|
|
if __name__ == '__main__':
|
|
main()
|