Mercurial > hg > CbC > CbC_gcc
comparison libquadmath/update-quadmath.py @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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131:84e7813d76e9 | 145:1830386684a0 |
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1 #!/usr/bin/python3 | |
2 # Update libquadmath code from glibc sources. | |
3 # Copyright (C) 2018 Free Software Foundation, Inc. | |
4 # This file is part of the libquadmath library. | |
5 # | |
6 # Libquadmath is free software; you can redistribute it and/or | |
7 # modify it under the terms of the GNU Lesser General Public | |
8 # License as published by the Free Software Foundation; either | |
9 # version 2.1 of the License, or (at your option) any later version. | |
10 # | |
11 # Libquadmath is distributed in the hope that it will be useful, | |
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 # Lesser General Public License for more details. | |
15 # | |
16 # You should have received a copy of the GNU Lesser General Public | |
17 # License along with libquadmath; if not, see | |
18 # <https://www.gnu.org/licenses/>. | |
19 | |
20 # Usage: update-quadmath.py glibc_srcdir quadmath_srcdir | |
21 | |
22 import argparse | |
23 from collections import defaultdict | |
24 import os.path | |
25 import re | |
26 | |
27 | |
28 def replace_in_file(repl_map, extra_map, src, dest): | |
29 """Apply the replacements in repl_map, then those in extra_map, to the | |
30 file src, producing dest.""" | |
31 with open(src, 'r') as src_file: | |
32 text = src_file.read() | |
33 for re_src, re_repl in sorted(repl_map.items()): | |
34 text = re.sub(re_src, re_repl, text) | |
35 for re_src, re_repl in sorted(extra_map.items()): | |
36 text = re.sub(re_src, re_repl, text) | |
37 text = text.rstrip() + '\n' | |
38 with open(dest, 'w') as dest_file: | |
39 dest_file.write(text) | |
40 | |
41 | |
42 def update_sources(glibc_srcdir, quadmath_srcdir): | |
43 """Update libquadmath sources.""" | |
44 glibc_ldbl128 = os.path.join(glibc_srcdir, 'sysdeps/ieee754/ldbl-128') | |
45 glibc_math = os.path.join(glibc_srcdir, 'math') | |
46 quadmath_math = os.path.join(quadmath_srcdir, 'math') | |
47 float128_h = os.path.join(glibc_srcdir, | |
48 'sysdeps/ieee754/float128/float128_private.h') | |
49 repl_map = {} | |
50 # Use float128_private.h to get an initial list of names to | |
51 # replace for libquadmath. | |
52 repl_names = {} | |
53 with open(float128_h, 'r') as header: | |
54 for line in header: | |
55 line = line.strip() | |
56 if not line.startswith('#define '): | |
57 continue | |
58 match = re.fullmatch('^#define[ \t]+([a-zA-Z0-9_]+)' | |
59 '[ \t]+([a-zA-Z0-9_]+)', line) | |
60 if not match: | |
61 continue | |
62 macro = match.group(1) | |
63 result = match.group(2) | |
64 result = result.replace('f128', 'q') | |
65 result = result.replace('__ieee754_', '') | |
66 if result not in ('__expq_table', '__sincosq_table', | |
67 '__builtin_signbit'): | |
68 result = result.replace('__', '') | |
69 result = result.replace('_do_not_use', '') | |
70 if result in ('rem_pio2q', 'kernel_sincosq', 'kernel_sinq', | |
71 'kernel_cosq', 'kernel_tanq', 'gammaq_r', | |
72 'gamma_productq', 'lgamma_negq', 'lgamma_productq', | |
73 'lgammaq_r', 'x2y2m1q'): | |
74 # Internal function names, for which the above removal | |
75 # of leading '__' was inappropriate and a leading | |
76 # '__quadmath_' needs adding instead. In the | |
77 # libquadmath context, lgammaq_r is an internal name. | |
78 result = '__quadmath_' + result | |
79 if result == 'ieee854_float128_shape_type': | |
80 result = 'ieee854_float128' | |
81 if result == 'HUGE_VAL_F128': | |
82 result = 'HUGE_VALQ' | |
83 repl_names[macro] = result | |
84 # More such names that aren't simply defined as object-like macros | |
85 # in float128_private.h. | |
86 repl_names['_Float128'] = '__float128' | |
87 repl_names['SET_RESTORE_ROUNDL'] = 'SET_RESTORE_ROUNDF128' | |
88 repl_names['parts32'] = 'words32' | |
89 for macro in ('GET_LDOUBLE_LSW64', 'GET_LDOUBLE_MSW64', | |
90 'GET_LDOUBLE_WORDS64', 'SET_LDOUBLE_LSW64', | |
91 'SET_LDOUBLE_MSW64', 'SET_LDOUBLE_WORDS64'): | |
92 repl_names[macro] = macro.replace('LDOUBLE', 'FLT128') | |
93 # The classication macros are replaced. | |
94 for macro in ('FP_NAN', 'FP_INFINITE', 'FP_ZERO', 'FP_SUBNORMAL', | |
95 'FP_NORMAL'): | |
96 repl_names[macro] = 'QUAD' + macro | |
97 for macro in ('fpclassify', 'signbit', 'isnan', 'isinf', 'issignaling'): | |
98 repl_names[macro] = macro + 'q' | |
99 repl_names['isfinite'] = 'finiteq' | |
100 # Map comparison macros to the __builtin forms. | |
101 for macro in ('isgreater', 'isgreaterequal', 'isless', 'islessequal', | |
102 'islessgreater', 'isunordered'): | |
103 repl_names[macro] = '__builtin_' + macro | |
104 # Replace macros used in type-generic templates in glibc. | |
105 repl_names['FLOAT'] = '__float128' | |
106 repl_names['CFLOAT'] = '__complex128' | |
107 repl_names['M_NAN'] = 'nanq ("")' | |
108 repl_names['M_HUGE_VAL'] = 'HUGE_VALQ' | |
109 repl_names['INFINITY'] = '__builtin_inf ()' | |
110 for macro in ('MIN_EXP', 'MAX_EXP', 'MIN', 'MAX', 'MANT_DIG', 'EPSILON'): | |
111 repl_names['M_%s' % macro] = 'FLT128_%s' % macro | |
112 for macro in ('COPYSIGN', 'FABS', 'SINCOS', 'SCALBN', 'LOG1P', 'ATAN2', | |
113 'COSH', 'EXP', 'HYPOT', 'LOG', 'SINH', 'SQRT'): | |
114 repl_names['M_%s' % macro] = macro.lower() + 'q' | |
115 # Each such name is replaced when it appears as a whole word. | |
116 for macro in repl_names: | |
117 repl_map[r'\b%s\b' % macro] = repl_names[macro] | |
118 # Also replace the L macro for constants; likewise M_LIT and M_MLIT. | |
119 repl_map[r'\bL *\((.*?)\)'] = r'\1Q' | |
120 repl_map[r'\bM_LIT *\((.*?)\)'] = r'\1Q' | |
121 repl_map[r'\bM_MLIT *\((.*?)\)'] = r'\1q' | |
122 # M_DECL_FUNC and M_SUF need similar replacements. | |
123 repl_map[r'\bM_DECL_FUNC *\((?:__)?(?:ieee754_)?(.*?)\)'] = r'\1q' | |
124 repl_map[r'\bM_SUF *\((?:__)?(?:ieee754_)?(.*?)\)'] = r'\1q' | |
125 # Further adjustments are then needed for certain internal | |
126 # functions called via M_SUF. | |
127 repl_map[r'\bx2y2m1q\b'] = '__quadmath_x2y2m1q' | |
128 repl_map[r'\bkernel_casinhq\b'] = '__quadmath_kernel_casinhq' | |
129 # Replace calls to __set_errno. | |
130 repl_map[r'\b__set_errno *\((.*?)\)'] = r'errno = \1' | |
131 # Eliminate glibc diagnostic macros. | |
132 repl_map[r' *\bDIAG_PUSH_NEEDS_COMMENT;'] = '' | |
133 repl_map[r' *\bDIAG_IGNORE_NEEDS_COMMENT *\(.*?\);'] = '' | |
134 repl_map[r' *\bDIAG_POP_NEEDS_COMMENT;'] = '' | |
135 # Different names used in union. | |
136 repl_map[r'\.d\b'] = '.value' | |
137 repl_map[r'\bunion ieee854_float128\b'] = 'ieee854_float128' | |
138 # Calls to alias and hidden_def macros are all eliminated. | |
139 for macro in ('strong_alias', 'weak_alias', 'libm_alias_ldouble', | |
140 'declare_mgen_alias', 'declare_mgen_finite_alias', | |
141 'libm_hidden_def', 'mathx_hidden_def'): | |
142 repl_map[r'\b%s *\(.*?\);?' % macro] = '' | |
143 # Replace all #includes with a single include of quadmath-imp.h. | |
144 repl_map['(\n+#include[^\n]*)+\n+'] = '\n\n#include "quadmath-imp.h"\n\n' | |
145 # Omitted from this list because code comes from more than one | |
146 # glibc source file: rem_pio2. | |
147 ldbl_files = { | |
148 'e_acoshl.c': 'acoshq.c', 'e_acosl.c': 'acosq.c', | |
149 's_asinhl.c': 'asinhq.c', 'e_asinl.c': 'asinq.c', | |
150 'e_atan2l.c': 'atan2q.c', 'e_atanhl.c': 'atanhq.c', | |
151 's_atanl.c': 'atanq.c', 's_cbrtl.c': 'cbrtq.c', 's_ceill.c': 'ceilq.c', | |
152 's_copysignl.c': 'copysignq.c', 'e_coshl.c': 'coshq.c', | |
153 's_cosl.c': 'cosq.c', 'k_cosl.c': 'cosq_kernel.c', | |
154 's_erfl.c': 'erfq.c', 's_expm1l.c': 'expm1q.c', 'e_expl.c': 'expq.c', | |
155 't_expl.h': 'expq_table.h', 's_fabsl.c': 'fabsq.c', | |
156 's_finitel.c': 'finiteq.c', 's_floorl.c': 'floorq.c', | |
157 's_fmal.c': 'fmaq.c', 'e_fmodl.c': 'fmodq.c', 's_frexpl.c': 'frexpq.c', | |
158 'e_lgammal_r.c': 'lgammaq.c', 'lgamma_negl.c': 'lgammaq_neg.c', | |
159 'lgamma_productl.c': 'lgammaq_product.c', 'e_hypotl.c': 'hypotq.c', | |
160 'e_ilogbl.c': 'ilogbq.c', 's_isinfl.c': 'isinfq.c', | |
161 's_isnanl.c': 'isnanq.c', 's_issignalingl.c': 'issignalingq.c', | |
162 'e_j0l.c': 'j0q.c', 'e_j1l.c': 'j1q.c', 'e_jnl.c': 'jnq.c', | |
163 's_llrintl.c': 'llrintq.c', 's_llroundl.c': 'llroundq.c', | |
164 'e_log10l.c': 'log10q.c', 's_log1pl.c': 'log1pq.c', | |
165 'e_log2l.c': 'log2q.c', 's_logbl.c': 'logbq.c', 'e_logl.c': 'logq.c', | |
166 's_lrintl.c': 'lrintq.c', 's_lroundl.c': 'lroundq.c', | |
167 's_modfl.c': 'modfq.c', 's_nearbyintl.c': 'nearbyintq.c', | |
168 's_nextafterl.c': 'nextafterq.c', 'e_powl.c': 'powq.c', | |
169 'e_remainderl.c': 'remainderq.c', 's_remquol.c': 'remquoq.c', | |
170 's_rintl.c': 'rintq.c', 's_roundl.c': 'roundq.c', | |
171 's_scalblnl.c': 'scalblnq.c', 's_scalbnl.c': 'scalbnq.c', | |
172 's_signbitl.c': 'signbitq.c', 't_sincosl.c': 'sincos_table.c', | |
173 's_sincosl.c': 'sincosq.c', 'k_sincosl.c': 'sincosq_kernel.c', | |
174 'e_sinhl.c': 'sinhq.c', 's_sinl.c': 'sinq.c', | |
175 'k_sinl.c': 'sinq_kernel.c', 's_tanhl.c': 'tanhq.c', | |
176 's_tanl.c': 'tanq.c', 'k_tanl.c': 'tanq_kernel.c', | |
177 'e_gammal_r.c': 'tgammaq.c', 'gamma_productl.c': 'tgammaq_product.c', | |
178 's_truncl.c': 'truncq.c', 'x2y2m1l.c': 'x2y2m1q.c' | |
179 } | |
180 template_files = { | |
181 's_cacosh_template.c': 'cacoshq.c', 's_cacos_template.c': 'cacosq.c', | |
182 's_casinh_template.c': 'casinhq.c', | |
183 'k_casinh_template.c': 'casinhq_kernel.c', | |
184 's_casin_template.c': 'casinq.c', 's_catanh_template.c': 'catanhq.c', | |
185 's_catan_template.c': 'catanq.c', 's_ccosh_template.c': 'ccoshq.c', | |
186 's_cexp_template.c': 'cexpq.c', 'cimag_template.c': 'cimagq.c', | |
187 's_clog10_template.c': 'clog10q.c', 's_clog_template.c': 'clogq.c', | |
188 'conj_template.c': 'conjq.c', 's_cproj_template.c': 'cprojq.c', | |
189 'creal_template.c': 'crealq.c', 's_csinh_template.c': 'csinhq.c', | |
190 's_csin_template.c': 'csinq.c', 's_csqrt_template.c': 'csqrtq.c', | |
191 's_ctanh_template.c': 'ctanhq.c', 's_ctan_template.c': 'ctanq.c', | |
192 'e_exp2_template.c': 'exp2q.c', 's_fdim_template.c': 'fdimq.c', | |
193 's_fmax_template.c': 'fmaxq.c', 's_fmin_template.c': 'fminq.c', | |
194 's_ldexp_template.c': 'ldexpq.c' | |
195 } | |
196 # Some files have extra substitutions to apply. | |
197 extra_maps = defaultdict(dict) | |
198 extra_maps['expq.c'] = {r'#include "quadmath-imp\.h"\n': | |
199 '#include "quadmath-imp.h"\n' | |
200 '#include "expq_table.h"\n'} | |
201 extra_maps['ilogbq.c'] = {r'#include "quadmath-imp\.h"\n': | |
202 '#include <math.h>\n' | |
203 '#include "quadmath-imp.h"\n' | |
204 '#ifndef FP_ILOGB0\n' | |
205 '# define FP_ILOGB0 INT_MIN\n' | |
206 '#endif\n' | |
207 '#ifndef FP_ILOGBNAN\n' | |
208 '# define FP_ILOGBNAN INT_MAX\n' | |
209 '#endif\n', | |
210 r'return ([A-Z0-9_]+);': | |
211 r'{ errno = EDOM; feraiseexcept (FE_INVALID); ' | |
212 r'return \1; }'} | |
213 extra_maps['lgammaq.c'] = {r'#include "quadmath-imp\.h"\n': | |
214 '#include "quadmath-imp.h"\n' | |
215 '#ifdef HAVE_MATH_H_SIGNGAM\n' | |
216 '# include <math.h>\n' | |
217 '#endif\n' | |
218 '__float128\n' | |
219 'lgammaq (__float128 x)\n' | |
220 '{\n' | |
221 '#ifndef HAVE_MATH_H_SIGNGAM\n' | |
222 ' int signgam;\n' | |
223 '#endif\n' | |
224 ' return __quadmath_lgammaq_r (x, &signgam);\n' | |
225 '}\n'} | |
226 extra_maps['tgammaq.c'] = {r'#include "quadmath-imp\.h"\n': | |
227 '#include "quadmath-imp.h"\n' | |
228 '__float128\n' | |
229 'tgammaq (__float128 x)\n' | |
230 '{\n' | |
231 ' int sign;\n' | |
232 ' __float128 ret;\n' | |
233 ' ret = __quadmath_gammaq_r (x, &sign);\n' | |
234 ' return sign < 0 ? -ret : ret;\n' | |
235 '}\n'} | |
236 for src, dest in ldbl_files.items(): | |
237 replace_in_file(repl_map, extra_maps[dest], | |
238 os.path.join(glibc_ldbl128, src), | |
239 os.path.join(quadmath_math, dest)) | |
240 for src, dest in template_files.items(): | |
241 replace_in_file(repl_map, extra_maps[dest], | |
242 os.path.join(glibc_math, src), | |
243 os.path.join(quadmath_math, dest)) | |
244 | |
245 def main(): | |
246 parser = argparse.ArgumentParser(description='Update libquadmath code.') | |
247 parser.add_argument('glibc_srcdir', help='glibc source directory') | |
248 parser.add_argument('quadmath_srcdir', help='libquadmath source directory') | |
249 args = parser.parse_args() | |
250 update_sources(args.glibc_srcdir, args.quadmath_srcdir) | |
251 | |
252 | |
253 if __name__ == '__main__': | |
254 main() |