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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 | /* * Copyright (C) 2017 Hangzhou C-SKY Microsystems co.,ltd. * * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB * in this tarball. */ #ifdef __GNUC__ #ifdef __USE_ISOC99 /* ISO C99 defines some macros to perform unordered comparisons. The csky FPU supports this with special opcodes and we should use them. These must not be inline functions since we have to be able to handle all floating-point types. */ # define isgreater(x, y) \ __extension__ \ ({ char __result; \ __asm__ ("fcmp%.x %2,%1; fsogt %0" \ : "=dm" (__result) : "f" (x), "f" (y)); \ __result != 0; }) # define isgreaterequal(x, y) \ __extension__ \ ({ char __result; \ __asm__ ("fcmp%.x %2,%1; fsoge %0" \ : "=dm" (__result) : "f" (x), "f" (y)); \ __result != 0; }) # define isless(x, y) \ __extension__ \ ({ char __result; \ __asm__ ("fcmp%.x %2,%1; fsolt %0" \ : "=dm" (__result) : "f" (x), "f" (y)); \ __result != 0; }) # define islessequal(x, y) \ __extension__ \ ({ char __result; \ __asm__ ("fcmp%.x %2,%1; fsole %0" \ : "=dm" (__result) : "f" (x), "f" (y)); \ __result != 0; }) # define islessgreater(x, y) \ __extension__ \ ({ char __result; \ __asm__ ("fcmp%.x %2,%1; fsogl %0" \ : "=dm" (__result) : "f" (x), "f" (y)); \ __result != 0; }) # define isunordered(x, y) \ __extension__ \ ({ char __result; \ __asm__ ("fcmp%.x %2,%1; fsun %0" \ : "=dm" (__result) : "f" (x), "f" (y)); \ __result != 0; }) #endif #if (!defined __NO_MATH_INLINES && defined __OPTIMIZE__) \ || defined __LIBC_INTERNAL_MATH_INLINES #ifdef __LIBC_INTERNAL_MATH_INLINES /* This is used when defining the functions themselves. Define them with __ names, and with `static inline' instead of `extern inline' so the bodies will always be used, never an external function call. */ # define __m81_u(x) __CONCAT(__,x) # define __m81_inline static __inline #else # define __m81_u(x) x # ifdef __cplusplus # define __m81_inline __inline # else # define __m81_inline extern __inline # endif # define __M81_MATH_INLINES 1 #endif /* Define a const math function. */ #define __m81_defun(rettype, func, args) \ __m81_inline rettype __attribute__((__const__)) \ __m81_u(func) args /* Define the three variants of a math function that has a direct implementation in the csky fpu. FUNC is the name for C (which will be suffixed with f and l for the float and long double version, resp). OP is the name of the fpu operation (without leading f). */ #if defined __USE_MISC || defined __USE_ISOC99 # define __inline_mathop(func, op) \ __inline_mathop1(double, func, op) \ __inline_mathop1(float, __CONCAT(func,f), op) \ __inline_mathop1(long double, __CONCAT(func,l), op) #else # define __inline_mathop(func, op) \ __inline_mathop1(double, func, op) #endif #define __inline_mathop1(float_type,func, op) \ __m81_defun (float_type, func, (float_type __mathop_x)) __THROW \ { \ float_type __result; \ __asm("f" __STRING(op) "%.x %1, %0" : "=f" (__result) : "f" (__mathop_x));\ return __result; \ } __inline_mathop(__atan, atan) __inline_mathop(__cos, cos) __inline_mathop(__sin, sin) __inline_mathop(__tan, tan) __inline_mathop(__tanh, tanh) __inline_mathop(__fabs, abs) #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99 __inline_mathop(__rint, int) __inline_mathop(__expm1, etoxm1) __inline_mathop(__log1p, lognp1) #endif #ifdef __USE_MISC __inline_mathop(__significand, getman) #endif #ifdef __USE_ISOC99 __inline_mathop(__trunc, intrz) #endif #if !defined __NO_MATH_INLINES && defined __OPTIMIZE__ __inline_mathop(atan, atan) __inline_mathop(cos, cos) __inline_mathop(sin, sin) __inline_mathop(tan, tan) __inline_mathop(tanh, tanh) # if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99 __inline_mathop(rint, int) __inline_mathop(expm1, etoxm1) __inline_mathop(log1p, lognp1) # endif # ifdef __USE_MISC __inline_mathop(significand, getman) # endif # ifdef __USE_ISOC99 __inline_mathop(trunc, intrz) # endif #endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */ /* This macro contains the definition for the rest of the inline functions, using FLOAT_TYPE as the domain type and S as the suffix for the function names. */ #define __inline_functions(float_type, s) \ __m81_inline float_type \ __m81_u(__CONCAT(__frexp,s))(float_type __value, int *__expptr) __THROW \ { \ float_type __mantissa, __exponent; \ int __iexponent; \ unsigned long __fpsr; \ __asm("ftst%.x %1\n" \ "fmove%.l %/fpsr, %0" : "=dm" (__fpsr) : "f" (__value)); \ if (__fpsr & (7 << 24)) \ { \ /* Not finite or zero. */ \ *__expptr = 0; \ return __value; \ } \ __asm("fgetexp%.x %1, %0" : "=f" (__exponent) : "f" (__value)); \ __iexponent = (int) __exponent + 1; \ *__expptr = __iexponent; \ __asm("fscale%.l %2, %0" : "=f" (__mantissa) \ : "0" (__value), "dmi" (-__iexponent)); \ return __mantissa; \ } \ \ __m81_defun (float_type, __CONCAT(__floor,s), (float_type __x)) __THROW \ { \ float_type __result; \ unsigned long int __ctrl_reg; \ __asm __volatile__ ("fmove%.l %!, %0" : "=dm" (__ctrl_reg)); \ /* Set rounding towards negative infinity. */ \ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \ : "dmi" ((__ctrl_reg & ~0x10) | 0x20)); \ /* Convert X to an integer, using -Inf rounding. */ \ __asm __volatile__ ("fint%.x %1, %0" : "=f" (__result) : "f" (__x)); \ /* Restore the previous rounding mode. */ \ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \ : "dmi" (__ctrl_reg)); \ return __result; \ } \ \ __m81_defun (float_type, __CONCAT(__ceil,s), (float_type __x)) __THROW \ { \ float_type __result; \ unsigned long int __ctrl_reg; \ __asm __volatile__ ("fmove%.l %!, %0" : "=dm" (__ctrl_reg)); \ /* Set rounding towards positive infinity. */ \ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \ : "dmi" (__ctrl_reg | 0x30)); \ /* Convert X to an integer, using +Inf rounding. */ \ __asm __volatile__ ("fint%.x %1, %0" : "=f" (__result) : "f" (__x)); \ /* Restore the previous rounding mode. */ \ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \ : "dmi" (__ctrl_reg)); \ return __result; \ } __inline_functions(double,) #if defined __USE_MISC || defined __USE_ISOC99 __inline_functions(float,f) __inline_functions(long double,l) #endif #undef __inline_functions #ifdef __USE_MISC # define __inline_functions(float_type, s) \ __m81_defun (int, __CONCAT(__isinf,s), (float_type __value)) __THROW \ { \ /* There is no branch-condition for infinity, \ so we must extract and examine the condition codes manually. */ \ unsigned long int __fpsr; \ __asm("ftst%.x %1\n" \ "fmove%.l %/fpsr, %0" : "=dm" (__fpsr) : "f" (__value)); \ return (__fpsr & (2 << 24)) ? (__fpsr & (8 << 24) ? -1 : 1) : 0; \ } \ \ __m81_defun (int, __CONCAT(__finite,s), (float_type __value)) __THROW \ { \ /* There is no branch-condition for infinity, so we must extract and \ examine the condition codes manually. */ \ unsigned long int __fpsr; \ __asm ("ftst%.x %1\n" \ "fmove%.l %/fpsr, %0" : "=dm" (__fpsr) : "f" (__value)); \ return (__fpsr & (3 << 24)) == 0; \ } \ \ __m81_defun (float_type, __CONCAT(__scalbn,s), \ (float_type __x, int __n)) __THROW \ { \ float_type __result; \ __asm ("fscale%.l %1, %0" : "=f" (__result) : "dmi" (__n), "0" (__x)); \ return __result; \ } __inline_functions(double,) __inline_functions(float,f) __inline_functions(long double,l) # undef __inline_functions #endif /* Use misc. */ #if defined __USE_MISC || defined __USE_XOPEN # define __inline_functions(float_type, s) \ __m81_defun (int, __CONCAT(__isnan,s), (float_type __value)) __THROW \ { \ char __result; \ __asm("ftst%.x %1\n" \ "fsun %0" : "=dm" (__result) : "f" (__value)); \ return __result; \ } __inline_functions(double,) # ifdef __USE_MISC __inline_functions(float,f) __inline_functions(long double,l) # endif # undef __inline_functions #endif #ifdef __USE_ISOC99 # define __inline_functions(float_type, s) \ __m81_defun (int, __CONCAT(__signbit,s), (float_type __value)) __THROW \ { \ /* There is no branch-condition for the sign bit, so we must extract \ and examine the condition codes manually. */ \ unsigned long int __fpsr; \ __asm ("ftst%.x %1\n" \ "fmove%.l %/fpsr, %0" : "=dm" (__fpsr) : "f" (__value)); \ return (__fpsr >> 27) & 1; \ } \ \ __m81_defun (float_type, __CONCAT(__scalbln,s), \ (float_type __x, long int __n)) __THROW \ { \ return __CONCAT(__scalbn,s) (__x, __n); \ } \ \ __m81_defun (float_type, __CONCAT(__nearbyint,s), (float_type __x)) __THROW \ { \ float_type __result; \ unsigned long int __ctrl_reg; \ __asm __volatile__ ("fmove%.l %!, %0" : "=dm" (__ctrl_reg)); \ /* Temporarily disable the inexact exception. */ \ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \ : "dmi" (__ctrl_reg & ~0x200)); \ __asm __volatile__ ("fint%.x %1, %0" : "=f" (__result) : "f" (__x)); \ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \ : "dmi" (__ctrl_reg)); \ return __result; \ } \ \ __m81_defun (long int, __CONCAT(__lrint,s), (float_type __x)) __THROW \ { \ long int __result; \ __asm ("fmove%.l %1, %0" : "=dm" (__result) : "f" (__x)); \ return __result; \ } \ \ __m81_inline float_type \ __m81_u(__CONCAT(__fma,s))(float_type __x, float_type __y, \ float_type __z) __THROW \ { \ return (__x * __y) + __z; \ } __inline_functions (double,) __inline_functions (float,f) __inline_functions (long double,l) # undef __inline_functions #endif /* Use ISO C9x */ #ifdef __USE_GNU # define __inline_functions(float_type, s) \ __m81_inline void \ __m81_u(__CONCAT(__sincos,s))(float_type __x, float_type *__sinx, \ float_type *__cosx) __THROW \ { \ __asm ("fsincos%.x %2,%1:%0" \ : "=f" (*__sinx), "=f" (*__cosx) : "f" (__x)); \ } __inline_functions (double,) __inline_functions (float,f) __inline_functions (long double,l) # undef __inline_functions #endif #if !defined __NO_MATH_INLINES && defined __OPTIMIZE__ /* Define inline versions of the user visible functions. */ /* Note that there must be no whitespace before the argument passed for NAME, to make token pasting work correctly with -traditional. */ # define __inline_forward_c(rettype, name, args1, args2) \ extern __inline rettype __attribute__((__const__)) \ name args1 __THROW \ { \ return __CONCAT(__,name) args2; \ } # define __inline_forward(rettype, name, args1, args2) \ extern __inline rettype name args1 __THROW \ { \ return __CONCAT(__,name) args2; \ } __inline_forward(double,frexp, (double __value, int *__expptr), (__value, __expptr)) __inline_forward_c(double,floor, (double __x), (__x)) __inline_forward_c(double,ceil, (double __x), (__x)) # ifdef __USE_MISC # ifndef __USE_ISOC99 /* Conflict with macro of same name. */ __inline_forward_c(int,isinf, (double __value), (__value)) # endif __inline_forward_c(int,finite, (double __value), (__value)) __inline_forward_c(double,scalbn, (double __x, int __n), (__x, __n)) # endif # if defined __USE_MISC || defined __USE_XOPEN # ifndef __USE_ISOC99 /* Conflict with macro of same name. */ __inline_forward_c(int,isnan, (double __value), (__value)) # endif # endif # ifdef __USE_ISOC99 __inline_forward_c(double,scalbln, (double __x, long int __n), (__x, __n)) __inline_forward_c(double,nearbyint, (double __value), (__value)) __inline_forward_c(long int,lrint, (double __value), (__value)) __inline_forward_c(double,fma, (double __x, double __y, double __z), (__x, __y, __z)) # endif # ifdef __USE_GNU __inline_forward(void,sincos, (double __x, double *__sinx, double *__cosx), (__x, __sinx, __cosx)) # endif # if defined __USE_MISC || defined __USE_ISOC99 __inline_forward(float,frexpf, (float __value, int *__expptr), (__value, __expptr)) __inline_forward_c(float,floorf, (float __x), (__x)) __inline_forward_c(float,ceilf, (float __x), (__x)) # ifdef __USE_MISC __inline_forward_c(int,isinff, (float __value), (__value)) __inline_forward_c(int,finitef, (float __value), (__value)) __inline_forward_c(float,scalbnf, (float __x, int __n), (__x, __n)) __inline_forward_c(int,isnanf, (float __value), (__value)) # endif # ifdef __USE_ISOC99 __inline_forward_c(float,scalblnf, (float __x, long int __n), (__x, __n)) __inline_forward_c(float,nearbyintf, (float __value), (__value)) __inline_forward_c(long int,lrintf, (float __value), (__value)) __inline_forward_c(float,fmaf, (float __x, float __y, float __z), (__x, __y, __z)) # endif # ifdef __USE_GNU __inline_forward(void,sincosf, (float __x, float *__sinx, float *__cosx), (__x, __sinx, __cosx)) # endif __inline_forward(long double,frexpl, (long double __value, int *__expptr), (__value, __expptr)) __inline_forward_c(long double,floorl, (long double __x), (__x)) __inline_forward_c(long double,ceill, (long double __x), (__x)) # ifdef __USE_MISC __inline_forward_c(int,isinfl, (long double __value), (__value)) __inline_forward_c(int,finitel, (long double __value), (__value)) __inline_forward_c(long double,scalbnl, (long double __x, int __n), (__x, __n)) __inline_forward_c(int,isnanl, (long double __value), (__value)) # endif # ifdef __USE_ISOC99 __inline_forward_c(long double,scalblnl, (long double __x, long int __n), (__x, __n)) __inline_forward_c(long double,nearbyintl, (long double __value), (__value)) __inline_forward_c(long int,lrintl, (long double __value), (__value)) __inline_forward_c(long double,fmal, (long double __x, long double __y, long double __z), (__x, __y, __z)) # endif # ifdef __USE_GNU __inline_forward(void,sincosl, (long double __x, long double *__sinx, long double *__cosx), (__x, __sinx, __cosx)) # endif #endif /* Use misc or ISO C99 */ #undef __inline_forward #undef __inline_forward_c #endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */ #endif #endif |