sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1 | /* Copyright (C) 2011 IBM |
| 2 | |
| 3 | Author: Maynard Johnson <maynardj@us.ibm.com> |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU General Public License as |
| 7 | published by the Free Software Foundation; either version 2 of the |
| 8 | License, or (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, but |
| 11 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307, USA. |
| 19 | |
| 20 | The GNU General Public License is contained in the file COPYING. |
| 21 | */ |
| 22 | |
| 23 | #ifdef HAS_VSX |
| 24 | |
| 25 | #include <stdio.h> |
| 26 | #include <stdint.h> |
| 27 | #include <stdlib.h> |
| 28 | #include <string.h> |
| 29 | #include <malloc.h> |
| 30 | #include <altivec.h> |
| 31 | #include <math.h> |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 32 | #include <unistd.h> // getopt |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 33 | |
| 34 | #ifndef __powerpc64__ |
| 35 | typedef uint32_t HWord_t; |
| 36 | #else |
| 37 | typedef uint64_t HWord_t; |
| 38 | #endif /* __powerpc64__ */ |
| 39 | |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 40 | #ifdef VGP_ppc64le_linux |
| 41 | #define isLE 1 |
| 42 | #else |
| 43 | #define isLE 0 |
| 44 | #endif |
| 45 | |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 46 | typedef unsigned char Bool; |
| 47 | #define True 1 |
| 48 | #define False 0 |
| 49 | register HWord_t r14 __asm__ ("r14"); |
| 50 | register HWord_t r15 __asm__ ("r15"); |
| 51 | register HWord_t r16 __asm__ ("r16"); |
| 52 | register HWord_t r17 __asm__ ("r17"); |
| 53 | register double f14 __asm__ ("fr14"); |
| 54 | register double f15 __asm__ ("fr15"); |
| 55 | register double f16 __asm__ ("fr16"); |
| 56 | register double f17 __asm__ ("fr17"); |
| 57 | |
| 58 | static volatile unsigned int div_flags, div_xer; |
| 59 | |
| 60 | #define ALLCR "cr0","cr1","cr2","cr3","cr4","cr5","cr6","cr7" |
| 61 | |
| 62 | #define SET_CR(_arg) \ |
| 63 | __asm__ __volatile__ ("mtcr %0" : : "b"(_arg) : ALLCR ); |
| 64 | |
| 65 | #define SET_XER(_arg) \ |
| 66 | __asm__ __volatile__ ("mtxer %0" : : "b"(_arg) : "xer" ); |
| 67 | |
| 68 | #define GET_CR(_lval) \ |
| 69 | __asm__ __volatile__ ("mfcr %0" : "=b"(_lval) ) |
| 70 | |
| 71 | #define GET_XER(_lval) \ |
| 72 | __asm__ __volatile__ ("mfxer %0" : "=b"(_lval) ) |
| 73 | |
| 74 | #define GET_CR_XER(_lval_cr,_lval_xer) \ |
| 75 | do { GET_CR(_lval_cr); GET_XER(_lval_xer); } while (0) |
| 76 | |
| 77 | #define SET_CR_ZERO \ |
| 78 | SET_CR(0) |
| 79 | |
| 80 | #define SET_XER_ZERO \ |
| 81 | SET_XER(0) |
| 82 | |
| 83 | #define SET_CR_XER_ZERO \ |
| 84 | do { SET_CR_ZERO; SET_XER_ZERO; } while (0) |
| 85 | |
| 86 | #define SET_FPSCR_ZERO \ |
| 87 | do { double _d = 0.0; \ |
| 88 | __asm__ __volatile__ ("mtfsf 0xFF, %0" : : "f"(_d) ); \ |
| 89 | } while (0) |
| 90 | |
| 91 | |
| 92 | typedef void (*test_func_t)(void); |
| 93 | typedef struct test_table test_table_t; |
| 94 | |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 95 | /* Defines for the instructiion groups, use bit field to identify */ |
| 96 | #define SCALAR_DIV_INST 0x0001 |
| 97 | #define OTHER_INST 0x0002 |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 98 | |
| 99 | /* These functions below that construct a table of floating point |
| 100 | * values were lifted from none/tests/ppc32/jm-insns.c. |
| 101 | */ |
| 102 | |
| 103 | #if defined (DEBUG_ARGS_BUILD) |
| 104 | #define AB_DPRINTF(fmt, args...) do { fprintf(stderr, fmt , ##args); } while (0) |
| 105 | #else |
| 106 | #define AB_DPRINTF(fmt, args...) do { } while (0) |
| 107 | #endif |
| 108 | |
| 109 | static inline void register_farg (void *farg, |
| 110 | int s, uint16_t _exp, uint64_t mant) |
| 111 | { |
| 112 | uint64_t tmp; |
| 113 | |
| 114 | tmp = ((uint64_t)s << 63) | ((uint64_t)_exp << 52) | mant; |
| 115 | *(uint64_t *)farg = tmp; |
| 116 | AB_DPRINTF("%d %03x %013llx => %016llx %0e\n", |
| 117 | s, _exp, mant, *(uint64_t *)farg, *(double *)farg); |
| 118 | } |
| 119 | |
carll | 8efe4e4 | 2013-09-12 17:38:13 +0000 | [diff] [blame] | 120 | static inline void register_sp_farg (void *farg, |
| 121 | int s, uint16_t _exp, uint32_t mant) |
| 122 | { |
| 123 | uint32_t tmp; |
| 124 | tmp = ((uint32_t)s << 31) | ((uint32_t)_exp << 23) | mant; |
| 125 | *(uint32_t *)farg = tmp; |
| 126 | } |
| 127 | |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 128 | |
| 129 | typedef struct fp_test_args { |
| 130 | int fra_idx; |
| 131 | int frb_idx; |
| 132 | } fp_test_args_t; |
| 133 | |
| 134 | |
| 135 | fp_test_args_t two_arg_fp_tests[] = { |
| 136 | {8, 8}, |
| 137 | {8, 14}, |
| 138 | {15, 16}, |
| 139 | {8, 5}, |
| 140 | {8, 4}, |
| 141 | {8, 7}, |
| 142 | {8, 9}, |
| 143 | {8, 11}, |
| 144 | {14, 8}, |
| 145 | {14, 14}, |
| 146 | {14, 6}, |
| 147 | {14, 5}, |
| 148 | {14, 4}, |
| 149 | {14, 7}, |
| 150 | {14, 9}, |
| 151 | {14, 11}, |
| 152 | {6, 8}, |
| 153 | {6, 14}, |
| 154 | {6, 6}, |
| 155 | {6, 5}, |
| 156 | {6, 4}, |
| 157 | {6, 7}, |
| 158 | {6, 9}, |
| 159 | {6, 11}, |
| 160 | {5, 8}, |
| 161 | {5, 14}, |
| 162 | {5, 6}, |
| 163 | {5, 5}, |
| 164 | {5, 4}, |
| 165 | {5, 7}, |
| 166 | {5, 9}, |
| 167 | {5, 11}, |
| 168 | {4, 8}, |
| 169 | {4, 14}, |
| 170 | {4, 6}, |
| 171 | {4, 5}, |
| 172 | {4, 1}, |
| 173 | {4, 7}, |
| 174 | {4, 9}, |
| 175 | {4, 11}, |
| 176 | {7, 8}, |
| 177 | {7, 14}, |
| 178 | {7, 6}, |
| 179 | {7, 5}, |
| 180 | {7, 4}, |
| 181 | {7, 7}, |
| 182 | {7, 9}, |
| 183 | {7, 11}, |
| 184 | {10, 8}, |
| 185 | {10, 14}, |
| 186 | {12, 6}, |
| 187 | {12, 5}, |
| 188 | {10, 4}, |
| 189 | {10, 7}, |
| 190 | {10, 9}, |
| 191 | {10, 11}, |
| 192 | {12, 8 }, |
| 193 | {12, 14}, |
| 194 | {12, 6}, |
| 195 | {15, 16}, |
| 196 | {15, 16}, |
| 197 | {9, 11}, |
| 198 | {11, 11}, |
| 199 | {11, 12}, |
| 200 | {16, 18}, |
| 201 | {17, 16}, |
| 202 | {19, 19}, |
| 203 | {19, 18} |
| 204 | }; |
| 205 | |
| 206 | |
| 207 | static int nb_special_fargs; |
| 208 | static double * spec_fargs; |
| 209 | static float * spec_sp_fargs; |
| 210 | |
| 211 | static void build_special_fargs_table(void) |
| 212 | { |
| 213 | /* |
| 214 | Entry Sign Exp fraction Special value |
| 215 | 0 0 3fd 0x8000000000000ULL Positive finite number |
| 216 | 1 0 404 0xf000000000000ULL ... |
| 217 | 2 0 001 0x8000000b77501ULL ... |
| 218 | 3 0 7fe 0x800000000051bULL ... |
| 219 | 4 0 012 0x3214569900000ULL ... |
| 220 | 5 0 000 0x0000000000000ULL +0.0 (+zero) |
| 221 | 6 1 000 0x0000000000000ULL -0.0 (-zero) |
| 222 | 7 0 7ff 0x0000000000000ULL +infinity |
| 223 | 8 1 7ff 0x0000000000000ULL -infinity |
| 224 | 9 0 7ff 0x7FFFFFFFFFFFFULL +SNaN |
| 225 | 10 1 7ff 0x7FFFFFFFFFFFFULL -SNaN |
| 226 | 11 0 7ff 0x8000000000000ULL +QNaN |
| 227 | 12 1 7ff 0x8000000000000ULL -QNaN |
| 228 | 13 1 000 0x8340000078000ULL Denormalized val (zero exp and non-zero fraction) |
| 229 | 14 1 40d 0x0650f5a07b353ULL Negative finite number |
| 230 | 15 0 412 0x32585a9900000ULL A few more positive finite numbers |
| 231 | 16 0 413 0x82511a2000000ULL ... |
| 232 | 17 . . . . . . . . . . . . . . . . . . . . . . . |
| 233 | 18 . . . . . . . . . . . . . . . . . . . . . . . |
| 234 | 19 . . . . . . . . . . . . . . . . . . . . . . . |
| 235 | */ |
| 236 | |
| 237 | uint64_t mant; |
carll | 8efe4e4 | 2013-09-12 17:38:13 +0000 | [diff] [blame] | 238 | uint32_t mant_sp; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 239 | uint16_t _exp; |
| 240 | int s; |
| 241 | int j, i = 0; |
| 242 | |
| 243 | if (spec_fargs) |
| 244 | return; |
| 245 | |
| 246 | spec_fargs = malloc( 20 * sizeof(double) ); |
| 247 | spec_sp_fargs = malloc( 20 * sizeof(float) ); |
| 248 | |
| 249 | // #0 |
| 250 | s = 0; |
| 251 | _exp = 0x3fd; |
| 252 | mant = 0x8000000000000ULL; |
| 253 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 254 | |
| 255 | // #1 |
| 256 | s = 0; |
| 257 | _exp = 0x404; |
| 258 | mant = 0xf000000000000ULL; |
| 259 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 260 | |
| 261 | // #2 |
| 262 | s = 0; |
| 263 | _exp = 0x001; |
| 264 | mant = 0x8000000b77501ULL; |
| 265 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 266 | |
| 267 | // #3 |
| 268 | s = 0; |
| 269 | _exp = 0x7fe; |
| 270 | mant = 0x800000000051bULL; |
| 271 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 272 | |
| 273 | // #4 |
| 274 | s = 0; |
| 275 | _exp = 0x012; |
| 276 | mant = 0x3214569900000ULL; |
| 277 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 278 | |
| 279 | |
| 280 | /* Special values */ |
| 281 | /* +0.0 : 0 0x000 0x0000000000000 */ |
| 282 | // #5 |
| 283 | s = 0; |
| 284 | _exp = 0x000; |
| 285 | mant = 0x0000000000000ULL; |
| 286 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 287 | |
| 288 | /* -0.0 : 1 0x000 0x0000000000000 */ |
| 289 | // #6 |
| 290 | s = 1; |
| 291 | _exp = 0x000; |
| 292 | mant = 0x0000000000000ULL; |
| 293 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 294 | |
| 295 | /* +infinity : 0 0x7FF 0x0000000000000 */ |
| 296 | // #7 |
| 297 | s = 0; |
| 298 | _exp = 0x7FF; |
| 299 | mant = 0x0000000000000ULL; |
| 300 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 301 | |
| 302 | /* -infinity : 1 0x7FF 0x0000000000000 */ |
| 303 | // #8 |
| 304 | s = 1; |
| 305 | _exp = 0x7FF; |
| 306 | mant = 0x0000000000000ULL; |
| 307 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 308 | |
carll | 8efe4e4 | 2013-09-12 17:38:13 +0000 | [diff] [blame] | 309 | /* |
| 310 | * This comment applies to values #9 and #10 below: |
| 311 | * When src is a SNaN, it's converted to a QNaN first before rounding to single-precision, |
| 312 | * so we can't just copy the double-precision value to the corresponding slot in the |
| 313 | * single-precision array (i.e., in the loop at the end of this function). Instead, we |
| 314 | * have to manually set the bits using register_sp_farg(). |
| 315 | */ |
| 316 | |
| 317 | /* +SNaN : 0 0x7FF 0x7FFFFFFFFFFFF */ |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 318 | // #9 |
| 319 | s = 0; |
| 320 | _exp = 0x7FF; |
| 321 | mant = 0x7FFFFFFFFFFFFULL; |
| 322 | register_farg(&spec_fargs[i++], s, _exp, mant); |
carll | 8efe4e4 | 2013-09-12 17:38:13 +0000 | [diff] [blame] | 323 | _exp = 0xff; |
| 324 | mant_sp = 0x3FFFFF; |
| 325 | register_sp_farg(&spec_sp_fargs[i-1], s, _exp, mant_sp); |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 326 | |
carll | 8efe4e4 | 2013-09-12 17:38:13 +0000 | [diff] [blame] | 327 | /* -SNaN : 1 0x7FF 0x7FFFFFFFFFFFF */ |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 328 | // #10 |
| 329 | s = 1; |
| 330 | _exp = 0x7FF; |
| 331 | mant = 0x7FFFFFFFFFFFFULL; |
| 332 | register_farg(&spec_fargs[i++], s, _exp, mant); |
carll | 8efe4e4 | 2013-09-12 17:38:13 +0000 | [diff] [blame] | 333 | _exp = 0xff; |
| 334 | mant_sp = 0x3FFFFF; |
| 335 | register_sp_farg(&spec_sp_fargs[i-1], s, _exp, mant_sp); |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 336 | |
carll | 8efe4e4 | 2013-09-12 17:38:13 +0000 | [diff] [blame] | 337 | /* +QNaN : 0 0x7FF 0x8000000000000 */ |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 338 | // #11 |
| 339 | s = 0; |
| 340 | _exp = 0x7FF; |
| 341 | mant = 0x8000000000000ULL; |
| 342 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 343 | |
carll | 8efe4e4 | 2013-09-12 17:38:13 +0000 | [diff] [blame] | 344 | /* -QNaN : 1 0x7FF 0x8000000000000 */ |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 345 | // #12 |
| 346 | s = 1; |
| 347 | _exp = 0x7FF; |
| 348 | mant = 0x8000000000000ULL; |
| 349 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 350 | |
| 351 | /* denormalized value */ |
| 352 | // #13 |
| 353 | s = 1; |
| 354 | _exp = 0x000; |
| 355 | mant = 0x8340000078000ULL; |
| 356 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 357 | |
| 358 | /* Negative finite number */ |
| 359 | // #14 |
| 360 | s = 1; |
| 361 | _exp = 0x40d; |
| 362 | mant = 0x0650f5a07b353ULL; |
| 363 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 364 | |
| 365 | /* A few positive finite numbers ... */ |
| 366 | // #15 |
| 367 | s = 0; |
| 368 | _exp = 0x412; |
| 369 | mant = 0x32585a9900000ULL; |
| 370 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 371 | |
| 372 | // #16 |
| 373 | s = 0; |
| 374 | _exp = 0x413; |
| 375 | mant = 0x82511a2000000ULL; |
| 376 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 377 | |
| 378 | // #17 |
| 379 | s = 0; |
| 380 | _exp = 0x403; |
| 381 | mant = 0x12ef5a9300000ULL; |
| 382 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 383 | |
| 384 | // #18 |
| 385 | s = 0; |
| 386 | _exp = 0x405; |
| 387 | mant = 0x14bf5d2300000ULL; |
| 388 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 389 | |
| 390 | // #19 |
| 391 | s = 0; |
| 392 | _exp = 0x409; |
| 393 | mant = 0x76bf982440000ULL; |
| 394 | register_farg(&spec_fargs[i++], s, _exp, mant); |
| 395 | |
| 396 | nb_special_fargs = i; |
| 397 | for (j = 0; j < i; j++) { |
carll | 8efe4e4 | 2013-09-12 17:38:13 +0000 | [diff] [blame] | 398 | if (!(j == 9 || j == 10)) |
| 399 | spec_sp_fargs[j] = spec_fargs[j]; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 400 | } |
| 401 | } |
| 402 | |
| 403 | |
| 404 | struct test_table |
| 405 | { |
| 406 | test_func_t test_category; |
| 407 | char * name; |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 408 | unsigned int test_group; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 409 | }; |
| 410 | |
| 411 | /* Type of input for floating point operations.*/ |
| 412 | typedef enum { |
| 413 | SINGLE_TEST, |
| 414 | DOUBLE_TEST |
| 415 | } precision_type_t; |
| 416 | |
| 417 | typedef enum { |
| 418 | VX_SCALAR_CONV_TO_WORD, |
| 419 | VX_CONV_TO_SINGLE, |
| 420 | VX_CONV_TO_DOUBLE, |
| 421 | VX_ESTIMATE, |
| 422 | VX_DEFAULT |
| 423 | } vx_fp_test_type; |
| 424 | |
| 425 | static vector unsigned int vec_out, vec_inA, vec_inB; |
| 426 | |
| 427 | /* This function is for checking the reciprocal and reciprocal square root |
| 428 | * estimate instructions. |
| 429 | */ |
| 430 | Bool check_estimate(precision_type_t type, Bool is_rsqrte, int idx, int output_vec_idx) |
| 431 | { |
| 432 | /* Technically, the number of bits of precision for xvredp and xvrsqrtedp is |
| 433 | * 14 bits (14 = log2 16384). However, the VEX emulation of these instructions |
| 434 | * does an actual reciprocal calculation versus estimation, so the answer we get back from |
| 435 | * valgrind can easily differ from the estimate in the lower bits (within the 14 bits of |
| 436 | * precision) and the estimate may still be within expected tolerances. On top of that, |
| 437 | * we can't count on these estimates always being the same across implementations. |
| 438 | * For example, with the fre[s] instruction (which should be correct to within one part |
| 439 | * in 256 -- i.e., 8 bits of precision) . . . When approximating the value 1.0111_1111_1111, |
| 440 | * one implementation could return 1.0111_1111_0000 and another implementation could return |
| 441 | * 1.1000_0000_0000. Both estimates meet the 1/256 accuracy requirement, but share only a |
| 442 | * single bit in common. |
| 443 | * |
| 444 | * The upshot is we can't validate the VEX output for these instructions by comparing against |
| 445 | * stored bit patterns. We must check that the result is within expected tolerances. |
| 446 | */ |
| 447 | |
| 448 | |
| 449 | /* A mask to be used for validation as a last resort. |
| 450 | * Only use 12 bits of precision for reasons discussed above. |
| 451 | */ |
| 452 | #define VSX_RECIP_ESTIMATE_MASK_DP 0xFFFFFF0000000000ULL |
| 453 | #define VSX_RECIP_ESTIMATE_MASK_SP 0xFFFFFF00 |
| 454 | |
| 455 | Bool result = False; |
| 456 | Bool dp_test = type == DOUBLE_TEST; |
| 457 | double src_dp, res_dp; |
| 458 | float src_sp, res_sp; |
| 459 | src_dp = res_dp = 0; |
| 460 | src_sp = res_sp = 0; |
| 461 | #define SRC (dp_test ? src_dp : src_sp) |
| 462 | #define RES (dp_test ? res_dp : res_sp) |
| 463 | Bool src_is_negative = False; |
| 464 | Bool res_is_negative = False; |
| 465 | unsigned long long * dst_dp = NULL; |
| 466 | unsigned int * dst_sp = NULL; |
| 467 | if (dp_test) { |
| 468 | unsigned long long * src_dp_ull; |
| 469 | dst_dp = (unsigned long long *) &vec_out; |
| 470 | src_dp = spec_fargs[idx]; |
| 471 | src_dp_ull = (unsigned long long *) &src_dp; |
| 472 | src_is_negative = (*src_dp_ull & 0x8000000000000000ULL) ? True : False; |
| 473 | res_is_negative = (dst_dp[output_vec_idx] & 0x8000000000000000ULL) ? True : False; |
| 474 | memcpy(&res_dp, &dst_dp[output_vec_idx], 8); |
| 475 | } else { |
| 476 | unsigned int * src_sp_uint; |
| 477 | dst_sp = (unsigned int *) &vec_out; |
| 478 | src_sp = spec_sp_fargs[idx]; |
| 479 | src_sp_uint = (unsigned int *) &src_sp; |
| 480 | src_is_negative = (*src_sp_uint & 0x80000000) ? True : False; |
| 481 | res_is_negative = (dst_sp[output_vec_idx] & 0x80000000) ? True : False; |
| 482 | memcpy(&res_sp, &dst_sp[output_vec_idx], 4); |
| 483 | } |
| 484 | |
| 485 | // Below are common rules for xvre{d|s}p and xvrsqrte{d|s}p |
| 486 | if (isnan(SRC)) |
| 487 | return isnan(RES); |
| 488 | if (fpclassify(SRC) == FP_ZERO) |
| 489 | return isinf(RES); |
| 490 | if (!src_is_negative && isinf(SRC)) |
| 491 | return !res_is_negative && (fpclassify(RES) == FP_ZERO); |
| 492 | if (is_rsqrte) { |
| 493 | if (src_is_negative) |
| 494 | return isnan(RES); |
| 495 | } else { |
| 496 | if (src_is_negative && isinf(SRC)) |
| 497 | return res_is_negative && (fpclassify(RES) == FP_ZERO); |
| 498 | } |
| 499 | if (dp_test) { |
| 500 | double calc_diff; |
| 501 | double real_diff; |
| 502 | double recip_divisor; |
| 503 | double div_result; |
| 504 | double calc_diff_tmp; |
| 505 | |
| 506 | if (is_rsqrte) |
| 507 | recip_divisor = sqrt(src_dp); |
| 508 | else |
| 509 | recip_divisor = src_dp; |
| 510 | |
| 511 | div_result = 1.0/recip_divisor; |
| 512 | calc_diff_tmp = recip_divisor * 16384.0; |
| 513 | if (isnormal(calc_diff_tmp)) { |
| 514 | calc_diff = fabs(1.0/calc_diff_tmp); |
| 515 | real_diff = fabs(res_dp - div_result); |
| 516 | result = ( ( res_dp == div_result ) |
| 517 | || ( real_diff <= calc_diff ) ); |
| 518 | } else { |
| 519 | /* Unable to compute theoretical difference, so we fall back to masking out |
| 520 | * un-precise bits. |
| 521 | */ |
| 522 | unsigned long long * div_result_dp = (unsigned long long *) &div_result; |
| 523 | result = (dst_dp[output_vec_idx] & VSX_RECIP_ESTIMATE_MASK_DP) == (*div_result_dp & VSX_RECIP_ESTIMATE_MASK_DP); |
| 524 | } |
| 525 | /* For debug use . . . |
| 526 | if (!result) { |
| 527 | unsigned long long * dv = &div_result; |
| 528 | unsigned long long * rd = &real_diff; |
| 529 | unsigned long long * cd = &calc_diff; |
| 530 | printf("\n\t {actual div_result: %016llx; real_diff: %016llx; calc_diff: %016llx}\n", |
| 531 | *dv, *rd, *cd); |
| 532 | } |
| 533 | */ |
| 534 | } else { // single precision test (only have xvrsqrtesp, since xvresp was implemented in stage 2) |
| 535 | float calc_diff; |
| 536 | float real_diff; |
| 537 | float div_result; |
| 538 | float calc_diff_tmp; |
| 539 | float recip_divisor = sqrt(src_sp); |
| 540 | |
| 541 | div_result = 1.0/recip_divisor; |
| 542 | calc_diff_tmp = recip_divisor * 16384.0; |
| 543 | if (isnormal(calc_diff_tmp)) { |
| 544 | calc_diff = fabsf(1.0/calc_diff_tmp); |
| 545 | real_diff = fabsf(res_sp - div_result); |
| 546 | result = ( ( res_sp == div_result ) |
| 547 | || ( real_diff <= calc_diff ) ); |
| 548 | } else { |
| 549 | /* Unable to compute theoretical difference, so we fall back to masking out |
| 550 | * un-precise bits. |
| 551 | */ |
| 552 | unsigned int * div_result_sp = (unsigned int *) &div_result; |
| 553 | result = (dst_sp[output_vec_idx] & VSX_RECIP_ESTIMATE_MASK_SP) == (*div_result_sp & VSX_RECIP_ESTIMATE_MASK_SP); |
| 554 | } |
| 555 | /* For debug use . . . |
| 556 | if (!result) { |
| 557 | unsigned long long * dv = &div_result; |
| 558 | unsigned long long * rd = &real_diff; |
| 559 | unsigned long long * cd = &calc_diff; |
| 560 | printf("\n\t {actual div_result: %016llx; real_diff: %016llx; calc_diff: %016llx}\n", |
| 561 | *dv, *rd, *cd); |
| 562 | } |
| 563 | */ |
| 564 | } |
| 565 | return result; |
| 566 | } |
| 567 | |
| 568 | typedef struct vx_fp_test |
| 569 | { |
| 570 | test_func_t test_func; |
| 571 | const char * name; |
| 572 | fp_test_args_t * targs; |
| 573 | int num_tests; |
| 574 | precision_type_t precision; |
| 575 | vx_fp_test_type type; |
| 576 | const char * op; |
| 577 | } vx_fp_test_t; |
| 578 | |
| 579 | |
| 580 | static Bool do_dot; |
| 581 | |
| 582 | static void test_xvredp(void) |
| 583 | { |
| 584 | __asm__ __volatile__ ("xvredp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 585 | } |
| 586 | |
| 587 | static void test_xsredp(void) |
| 588 | { |
| 589 | __asm__ __volatile__ ("xsredp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 590 | } |
| 591 | |
| 592 | static void test_xvrsqrtedp(void) |
| 593 | { |
| 594 | __asm__ __volatile__ ("xvrsqrtedp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 595 | } |
| 596 | |
| 597 | static void test_xsrsqrtedp(void) |
| 598 | { |
| 599 | __asm__ __volatile__ ("xsrsqrtedp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 600 | } |
| 601 | |
| 602 | static void test_xvrsqrtesp(void) |
| 603 | { |
| 604 | __asm__ __volatile__ ("xvrsqrtesp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 605 | } |
| 606 | |
| 607 | static void test_xstsqrtdp(void) |
| 608 | { |
| 609 | __asm__ __volatile__ ("xstsqrtdp cr1, %x0" : : "wa" (vec_inB)); |
| 610 | } |
| 611 | |
| 612 | static void test_xvtsqrtdp(void) |
| 613 | { |
| 614 | __asm__ __volatile__ ("xvtsqrtdp cr1, %x0" : : "wa" (vec_inB)); |
| 615 | } |
| 616 | |
| 617 | static void test_xvtsqrtsp(void) |
| 618 | { |
| 619 | __asm__ __volatile__ ("xvtsqrtsp cr1, %x0" : : "wa" (vec_inB)); |
| 620 | } |
| 621 | |
| 622 | static void test_xvsqrtdp(void) |
| 623 | { |
| 624 | __asm__ __volatile__ ("xvsqrtdp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 625 | } |
| 626 | |
| 627 | static void test_xvsqrtsp(void) |
| 628 | { |
| 629 | __asm__ __volatile__ ("xvsqrtsp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 630 | } |
| 631 | |
| 632 | static void test_xvtdivdp(void) |
| 633 | { |
| 634 | __asm__ __volatile__ ("xvtdivdp cr1, %x0, %x1" : : "wa" (vec_inA), "wa" (vec_inB)); |
| 635 | } |
| 636 | |
| 637 | static void test_xvtdivsp(void) |
| 638 | { |
| 639 | __asm__ __volatile__ ("xvtdivsp cr1, %x0, %x1" : : "wa" (vec_inA), "wa" (vec_inB)); |
| 640 | } |
| 641 | |
| 642 | static void test_xscvdpsp(void) |
| 643 | { |
| 644 | __asm__ __volatile__ ("xscvdpsp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 645 | } |
| 646 | |
| 647 | static void test_xscvdpuxws(void) |
| 648 | { |
| 649 | __asm__ __volatile__ ("xscvdpuxws %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 650 | } |
| 651 | |
| 652 | static void test_xscvspdp(void) |
| 653 | { |
| 654 | __asm__ __volatile__ ("xscvspdp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 655 | } |
| 656 | |
| 657 | static void test_xvcvdpsp(void) |
| 658 | { |
| 659 | __asm__ __volatile__ ("xvcvdpsp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 660 | } |
| 661 | |
| 662 | static void test_xvcvdpuxds(void) |
| 663 | { |
| 664 | __asm__ __volatile__ ("xvcvdpuxds %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 665 | } |
| 666 | |
| 667 | static void test_xvcvdpuxws(void) |
| 668 | { |
| 669 | __asm__ __volatile__ ("xvcvdpuxws %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 670 | } |
| 671 | |
| 672 | static void test_xvcvspdp(void) |
| 673 | { |
| 674 | __asm__ __volatile__ ("xvcvspdp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 675 | } |
| 676 | |
| 677 | static void test_xvcvspsxds(void) |
| 678 | { |
| 679 | __asm__ __volatile__ ("xvcvspsxds %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 680 | } |
| 681 | |
| 682 | static void test_xvcvspuxds(void) |
| 683 | { |
| 684 | __asm__ __volatile__ ("xvcvspuxds %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 685 | } |
| 686 | |
| 687 | static void test_xvcvdpsxds(void) |
| 688 | { |
| 689 | __asm__ __volatile__ ("xvcvdpsxds %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 690 | } |
| 691 | |
| 692 | static void test_xvcvspuxws(void) |
| 693 | { |
| 694 | __asm__ __volatile__ ("xvcvspuxws %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 695 | } |
| 696 | |
| 697 | static void test_xvcvsxddp(void) |
| 698 | { |
| 699 | __asm__ __volatile__ ("xvcvsxddp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 700 | } |
| 701 | |
| 702 | static void test_xvcvuxddp(void) |
| 703 | { |
| 704 | __asm__ __volatile__ ("xvcvuxddp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 705 | } |
| 706 | |
| 707 | static void test_xvcvsxdsp(void) |
| 708 | { |
| 709 | __asm__ __volatile__ ("xvcvsxdsp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 710 | } |
| 711 | |
| 712 | static void test_xvcvuxdsp(void) |
| 713 | { |
| 714 | __asm__ __volatile__ ("xvcvuxdsp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 715 | } |
| 716 | |
| 717 | static void test_xvcvsxwdp(void) |
| 718 | { |
| 719 | __asm__ __volatile__ ("xvcvsxwdp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 720 | } |
| 721 | |
| 722 | static void test_xvcvuxwdp(void) |
| 723 | { |
| 724 | __asm__ __volatile__ ("xvcvuxwdp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 725 | } |
| 726 | |
| 727 | static void test_xvcvsxwsp(void) |
| 728 | { |
| 729 | __asm__ __volatile__ ("xvcvsxwsp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 730 | } |
| 731 | |
| 732 | static void test_xvcvuxwsp(void) |
| 733 | { |
| 734 | __asm__ __volatile__ ("xvcvuxwsp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 735 | } |
| 736 | |
| 737 | static void test_xsrdpic(void) |
| 738 | { |
| 739 | __asm__ __volatile__ ("xsrdpic %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 740 | } |
| 741 | |
| 742 | static void test_xsrdpiz(void) |
| 743 | { |
| 744 | __asm__ __volatile__ ("xsrdpiz %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 745 | } |
| 746 | |
| 747 | static void test_xsrdpi(void) |
| 748 | { |
| 749 | __asm__ __volatile__ ("xsrdpi %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 750 | } |
| 751 | |
| 752 | static void test_xvabsdp(void) |
| 753 | { |
| 754 | __asm__ __volatile__ ("xvabsdp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 755 | } |
| 756 | |
| 757 | static void test_xvnabsdp(void) |
| 758 | { |
| 759 | __asm__ __volatile__ ("xvnabsdp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 760 | } |
| 761 | |
| 762 | static void test_xvnegdp(void) |
| 763 | { |
| 764 | __asm__ __volatile__ ("xvnegdp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 765 | } |
| 766 | |
| 767 | static void test_xvabssp(void) |
| 768 | { |
| 769 | __asm__ __volatile__ ("xvabssp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 770 | } |
| 771 | |
| 772 | static void test_xvnabssp(void) |
| 773 | { |
| 774 | __asm__ __volatile__ ("xvnabssp %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 775 | } |
| 776 | |
| 777 | static void test_xvrdpi(void) |
| 778 | { |
| 779 | __asm__ __volatile__ ("xvrdpi %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 780 | } |
| 781 | |
| 782 | static void test_xvrdpic(void) |
| 783 | { |
| 784 | __asm__ __volatile__ ("xvrdpic %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 785 | } |
| 786 | |
| 787 | static void test_xvrdpim(void) |
| 788 | { |
| 789 | __asm__ __volatile__ ("xvrdpim %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 790 | } |
| 791 | |
| 792 | static void test_xvrdpip(void) |
| 793 | { |
| 794 | __asm__ __volatile__ ("xvrdpip %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 795 | } |
| 796 | |
| 797 | static void test_xvrdpiz(void) |
| 798 | { |
| 799 | __asm__ __volatile__ ("xvrdpiz %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 800 | } |
| 801 | |
| 802 | static void test_xvrspi(void) |
| 803 | { |
| 804 | __asm__ __volatile__ ("xvrspi %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 805 | } |
| 806 | |
| 807 | static void test_xvrspic(void) |
| 808 | { |
| 809 | __asm__ __volatile__ ("xvrspic %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 810 | } |
| 811 | |
| 812 | static void test_xvrspim(void) |
| 813 | { |
| 814 | __asm__ __volatile__ ("xvrspim %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 815 | } |
| 816 | |
| 817 | static void test_xvrspip(void) |
| 818 | { |
| 819 | __asm__ __volatile__ ("xvrspip %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 820 | } |
| 821 | |
| 822 | static void test_xvrspiz(void) |
| 823 | { |
| 824 | __asm__ __volatile__ ("xvrspiz %x0, %x1" : "=wa" (vec_out): "wa" (vec_inB)); |
| 825 | } |
| 826 | |
| 827 | static vx_fp_test_t |
| 828 | vsx_one_fp_arg_tests[] = { |
| 829 | { &test_xvredp, "xvredp", NULL, 18, DOUBLE_TEST, VX_ESTIMATE, "1/x"}, |
| 830 | { &test_xsredp, "xsredp", NULL, 18, DOUBLE_TEST, VX_ESTIMATE, "1/x"}, |
| 831 | { &test_xvrsqrtedp, "xvrsqrtedp", NULL, 18, DOUBLE_TEST, VX_ESTIMATE, "1/x-sqrt"}, |
| 832 | { &test_xsrsqrtedp, "xsrsqrtedp", NULL, 18, DOUBLE_TEST, VX_ESTIMATE, "1/x-sqrt"}, |
| 833 | { &test_xvrsqrtesp, "xvrsqrtesp", NULL, 18, SINGLE_TEST, VX_ESTIMATE, "1/x-sqrt"}, |
| 834 | { &test_xvsqrtdp, "xvsqrtdp", NULL, 18, DOUBLE_TEST, VX_DEFAULT, "sqrt"}, |
| 835 | { &test_xvsqrtsp, "xvsqrtsp", NULL, 18, SINGLE_TEST, VX_DEFAULT, "sqrt"}, |
| 836 | { &test_xscvdpsp, "xscvdpsp", NULL, 20, DOUBLE_TEST, VX_CONV_TO_SINGLE, "conv"}, |
| 837 | { &test_xscvdpuxws, "xscvdpuxws", NULL, 20, DOUBLE_TEST, VX_SCALAR_CONV_TO_WORD, "conv"}, |
| 838 | { &test_xscvspdp, "xscvspdp", NULL, 20, SINGLE_TEST, VX_CONV_TO_DOUBLE, "conv"}, |
| 839 | { &test_xvcvdpsp, "xvcvdpsp", NULL, 20, DOUBLE_TEST, VX_CONV_TO_SINGLE, "conv"}, |
| 840 | { &test_xvcvdpuxds, "xvcvdpuxds", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "conv"}, |
| 841 | { &test_xvcvdpuxws, "xvcvdpuxws", NULL, 20, DOUBLE_TEST, VX_CONV_TO_SINGLE, "conv"}, |
| 842 | { &test_xvcvspdp, "xvcvspdp", NULL, 20, SINGLE_TEST, VX_CONV_TO_DOUBLE, "conv"}, |
| 843 | { &test_xvcvspsxds, "xvcvspsxds", NULL, 20, SINGLE_TEST, VX_CONV_TO_DOUBLE, "conv"}, |
| 844 | { &test_xvcvdpsxds, "xvcvdpsxds", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "conv"}, |
| 845 | { &test_xvcvspuxds, "xvcvspuxds", NULL, 20, SINGLE_TEST, VX_CONV_TO_DOUBLE, "conv"}, |
| 846 | { &test_xvcvspuxws, "xvcvspuxws", NULL, 20, SINGLE_TEST, VX_CONV_TO_SINGLE, "conv"}, |
| 847 | { &test_xsrdpic, "xsrdpic", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "round"}, |
| 848 | { &test_xsrdpiz, "xsrdpiz", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "round"}, |
| 849 | { &test_xsrdpi, "xsrdpi", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "round"}, |
| 850 | { &test_xvabsdp, "xvabsdp", NULL, 20, DOUBLE_TEST, VX_DEFAULT, "abs"}, |
| 851 | { &test_xvnabsdp, "xvnabsdp", NULL, 20, DOUBLE_TEST, VX_DEFAULT, "nabs"}, |
| 852 | { &test_xvnegdp, "xvnegdp", NULL, 20, DOUBLE_TEST, VX_DEFAULT, "neg"}, |
| 853 | { &test_xvabssp, "xvabssp", NULL, 20, SINGLE_TEST, VX_DEFAULT, "abs"}, |
| 854 | { &test_xvnabssp, "xvnabssp", NULL, 20, SINGLE_TEST, VX_DEFAULT, "nabs"}, |
| 855 | { &test_xvrdpi, "xvrdpi", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "round"}, |
| 856 | { &test_xvrdpic, "xvrdpic", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "round"}, |
| 857 | { &test_xvrdpim, "xvrdpim", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "round"}, |
| 858 | { &test_xvrdpip, "xvrdpip", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "round"}, |
| 859 | { &test_xvrdpiz, "xvrdpiz", NULL, 20, DOUBLE_TEST, VX_CONV_TO_DOUBLE, "round"}, |
| 860 | { &test_xvrspi, "xvrspi", NULL, 20, SINGLE_TEST, VX_CONV_TO_SINGLE, "round"}, |
| 861 | { &test_xvrspic, "xvrspic", NULL, 20, SINGLE_TEST, VX_CONV_TO_SINGLE, "round"}, |
| 862 | { &test_xvrspim, "xvrspim", NULL, 20, SINGLE_TEST, VX_CONV_TO_SINGLE, "round"}, |
| 863 | { &test_xvrspip, "xvrspip", NULL, 20, SINGLE_TEST, VX_CONV_TO_SINGLE, "round"}, |
| 864 | { &test_xvrspiz, "xvrspiz", NULL, 20, SINGLE_TEST, VX_CONV_TO_SINGLE, "round"}, |
| 865 | { NULL, NULL, NULL, 0, 0, 0, NULL} |
| 866 | }; |
| 867 | |
| 868 | static vx_fp_test_t |
| 869 | vx_tdivORtsqrt_tests[] = { |
| 870 | { &test_xstsqrtdp, "xstsqrtdp", NULL, 20, DOUBLE_TEST, VX_DEFAULT, "test-sqrt"}, |
| 871 | { &test_xvtsqrtdp, "xvtsqrtdp", NULL, 20, DOUBLE_TEST, VX_DEFAULT, "test-sqrt"}, |
| 872 | { &test_xvtsqrtsp, "xvtsqrtsp", NULL, 20, SINGLE_TEST, VX_DEFAULT, "test-sqrt"}, |
| 873 | { &test_xvtdivdp, "xvtdivdp", two_arg_fp_tests, 68, DOUBLE_TEST, VX_DEFAULT, "test-div"}, |
| 874 | { &test_xvtdivsp, "xvtdivsp", two_arg_fp_tests, 68, SINGLE_TEST, VX_DEFAULT, "test-div"}, |
| 875 | { NULL, NULL, NULL, 0 , 0, 0, NULL} |
| 876 | }; |
| 877 | |
| 878 | static unsigned long long doubleWord[] = { 0, |
| 879 | 0xffffffff00000000LL, |
| 880 | 0x00000000ffffffffLL, |
| 881 | 0xffffffffffffffffLL, |
| 882 | 0x89abcde123456789LL, |
| 883 | 0x0102030405060708LL, |
| 884 | 0x00000000a0b1c2d3LL, |
| 885 | 0x1111222233334444LL |
| 886 | }; |
| 887 | |
| 888 | static unsigned int singleWord[] = {0, |
| 889 | 0xffff0000, |
| 890 | 0x0000ffff, |
| 891 | 0xffffffff, |
| 892 | 0x89a73522, |
| 893 | 0x01020304, |
| 894 | 0x0000abcd, |
| 895 | 0x11223344 |
| 896 | }; |
| 897 | |
| 898 | typedef struct vx_intToFp_test |
| 899 | { |
| 900 | test_func_t test_func; |
| 901 | const char * name; |
| 902 | void * targs; |
| 903 | int num_tests; |
| 904 | precision_type_t precision; |
| 905 | vx_fp_test_type type; |
| 906 | } vx_intToFp_test_t; |
| 907 | |
| 908 | static vx_intToFp_test_t |
| 909 | intToFp_tests[] = { |
| 910 | { test_xvcvsxddp, "xvcvsxddp", (void *)doubleWord, 8, DOUBLE_TEST, VX_CONV_TO_DOUBLE }, |
| 911 | { test_xvcvuxddp, "xvcvuxddp", (void *)doubleWord, 8, DOUBLE_TEST, VX_CONV_TO_DOUBLE }, |
| 912 | { test_xvcvsxdsp, "xvcvsxdsp", (void *)doubleWord, 8, DOUBLE_TEST, VX_CONV_TO_SINGLE }, |
| 913 | { test_xvcvuxdsp, "xvcvuxdsp", (void *)doubleWord, 8, DOUBLE_TEST, VX_CONV_TO_SINGLE }, |
| 914 | { test_xvcvsxwdp, "xvcvsxwdp", (void *)singleWord, 8, SINGLE_TEST, VX_CONV_TO_DOUBLE }, |
| 915 | { test_xvcvuxwdp, "xvcvuxwdp", (void *)singleWord, 8, SINGLE_TEST, VX_CONV_TO_DOUBLE }, |
| 916 | { test_xvcvsxwsp, "xvcvsxwsp", (void *)singleWord, 8, SINGLE_TEST, VX_CONV_TO_SINGLE }, |
| 917 | { test_xvcvuxwsp, "xvcvuxwsp", (void *)singleWord, 8, SINGLE_TEST, VX_CONV_TO_SINGLE }, |
| 918 | { NULL, NULL, NULL, 0, 0 } |
| 919 | }; |
| 920 | |
| 921 | static Bool do_OE; |
| 922 | typedef enum { |
| 923 | DIV_BASE = 1, |
| 924 | DIV_OE = 2, |
| 925 | DIV_DOT = 4, |
| 926 | } div_type_t; |
| 927 | /* Possible divde type combinations are: |
| 928 | * - base |
| 929 | * - base+dot |
| 930 | * - base+OE |
| 931 | * - base+OE+dot |
| 932 | */ |
| 933 | #ifdef __powerpc64__ |
| 934 | static void test_divdeu(void) |
| 935 | { |
| 936 | int divdeu_type = DIV_BASE; |
| 937 | if (do_OE) |
| 938 | divdeu_type |= DIV_OE; |
| 939 | if (do_dot) |
| 940 | divdeu_type |= DIV_DOT; |
| 941 | |
| 942 | switch (divdeu_type) { |
| 943 | case 1: |
| 944 | SET_CR_XER_ZERO; |
| 945 | __asm__ __volatile__ ("divdeu %0, %1, %2" : "=r" (r17) : "r" (r14),"r" (r15)); |
| 946 | GET_CR_XER(div_flags, div_xer); |
| 947 | break; |
| 948 | case 3: |
| 949 | SET_CR_XER_ZERO; |
| 950 | __asm__ __volatile__ ("divdeuo %0, %1, %2" : "=r" (r17) : "r" (r14),"r" (r15)); |
| 951 | GET_CR_XER(div_flags, div_xer); |
| 952 | break; |
| 953 | case 5: |
| 954 | SET_CR_XER_ZERO; |
| 955 | __asm__ __volatile__ ("divdeu. %0, %1, %2" : "=r" (r17) : "r" (r14),"r" (r15)); |
| 956 | GET_CR_XER(div_flags, div_xer); |
| 957 | break; |
| 958 | case 7: |
| 959 | SET_CR_XER_ZERO; |
| 960 | __asm__ __volatile__ ("divdeuo. %0, %1, %2" : "=r" (r17) : "r" (r14),"r" (r15)); |
| 961 | GET_CR_XER(div_flags, div_xer); |
| 962 | break; |
| 963 | default: |
| 964 | fprintf(stderr, "Invalid divdeu type. Exiting\n"); |
| 965 | exit(1); |
| 966 | } |
| 967 | } |
| 968 | #endif |
| 969 | |
| 970 | static void test_divwe(void) |
| 971 | { |
| 972 | int divwe_type = DIV_BASE; |
| 973 | if (do_OE) |
| 974 | divwe_type |= DIV_OE; |
| 975 | if (do_dot) |
| 976 | divwe_type |= DIV_DOT; |
| 977 | |
| 978 | switch (divwe_type) { |
| 979 | case 1: |
| 980 | SET_CR_XER_ZERO; |
| 981 | __asm__ __volatile__ ("divwe %0, %1, %2" : "=r" (r17) : "r" (r14),"r" (r15)); |
| 982 | GET_CR_XER(div_flags, div_xer); |
| 983 | break; |
| 984 | case 3: |
| 985 | SET_CR_XER_ZERO; |
| 986 | __asm__ __volatile__ ("divweo %0, %1, %2" : "=r" (r17) : "r" (r14),"r" (r15)); |
| 987 | GET_CR_XER(div_flags, div_xer); |
| 988 | break; |
| 989 | case 5: |
| 990 | SET_CR_XER_ZERO; |
| 991 | __asm__ __volatile__ ("divwe. %0, %1, %2" : "=r" (r17) : "r" (r14),"r" (r15)); |
| 992 | GET_CR_XER(div_flags, div_xer); |
| 993 | break; |
| 994 | case 7: |
| 995 | SET_CR_XER_ZERO; |
| 996 | __asm__ __volatile__ ("divweo. %0, %1, %2" : "=r" (r17) : "r" (r14),"r" (r15)); |
| 997 | GET_CR_XER(div_flags, div_xer); |
| 998 | break; |
| 999 | default: |
| 1000 | fprintf(stderr, "Invalid divweu type. Exiting\n"); |
| 1001 | exit(1); |
| 1002 | } |
| 1003 | } |
| 1004 | |
| 1005 | |
| 1006 | typedef struct simple_test { |
| 1007 | test_func_t test_func; |
| 1008 | char * name; |
| 1009 | precision_type_t precision; |
| 1010 | } simple_test_t; |
| 1011 | |
| 1012 | |
| 1013 | static void setup_sp_fp_args(fp_test_args_t * targs, Bool swap_inputs) |
| 1014 | { |
| 1015 | int a_idx, b_idx, i; |
| 1016 | void * inA, * inB; |
| 1017 | void * vec_src = swap_inputs ? &vec_out : &vec_inB; |
| 1018 | |
| 1019 | for (i = 0; i < 4; i++) { |
| 1020 | a_idx = targs->fra_idx; |
| 1021 | b_idx = targs->frb_idx; |
| 1022 | inA = (void *)&spec_sp_fargs[a_idx]; |
| 1023 | inB = (void *)&spec_sp_fargs[b_idx]; |
| 1024 | // copy single precision FP into vector element i |
| 1025 | memcpy(((void *)&vec_inA) + (i * 4), inA, 4); |
| 1026 | memcpy(vec_src + (i * 4), inB, 4); |
| 1027 | targs++; |
| 1028 | } |
| 1029 | } |
| 1030 | |
| 1031 | static void setup_dp_fp_args(fp_test_args_t * targs, Bool swap_inputs) |
| 1032 | { |
| 1033 | int a_idx, b_idx, i; |
| 1034 | void * inA, * inB; |
| 1035 | void * vec_src = swap_inputs ? (void *)&vec_out : (void *)&vec_inB; |
| 1036 | |
| 1037 | for (i = 0; i < 2; i++) { |
| 1038 | a_idx = targs->fra_idx; |
| 1039 | b_idx = targs->frb_idx; |
| 1040 | inA = (void *)&spec_fargs[a_idx]; |
| 1041 | inB = (void *)&spec_fargs[b_idx]; |
| 1042 | // copy double precision FP into vector element i |
| 1043 | memcpy(((void *)&vec_inA) + (i * 8), inA, 8); |
| 1044 | memcpy(vec_src + (i * 8), inB, 8); |
| 1045 | targs++; |
| 1046 | } |
| 1047 | } |
| 1048 | |
| 1049 | #define VX_NOT_CMP_OP 0xffffffff |
| 1050 | static void print_vector_fp_result(unsigned int cc, vx_fp_test_t * test_group, int i, Bool print_vec_out) |
| 1051 | { |
| 1052 | int a_idx, b_idx, k; |
| 1053 | char * name = malloc(20); |
| 1054 | int dp = test_group->precision == DOUBLE_TEST ? 1 : 0; |
| 1055 | int loops = dp ? 2 : 4; |
| 1056 | fp_test_args_t * targs = &test_group->targs[i]; |
| 1057 | unsigned long long * frA_dp, * frB_dp, * dst_dp; |
| 1058 | unsigned int * frA_sp, *frB_sp, * dst_sp; |
| 1059 | strcpy(name, test_group->name); |
| 1060 | printf("#%d: %s%s ", dp? i/2 : i/4, name, (do_dot ? "." : "")); |
| 1061 | for (k = 0; k < loops; k++) { |
| 1062 | a_idx = targs->fra_idx; |
| 1063 | b_idx = targs->frb_idx; |
| 1064 | if (k) |
| 1065 | printf(" AND "); |
| 1066 | if (dp) { |
| 1067 | frA_dp = (unsigned long long *)&spec_fargs[a_idx]; |
| 1068 | frB_dp = (unsigned long long *)&spec_fargs[b_idx]; |
| 1069 | printf("%016llx %s %016llx", *frA_dp, test_group->op, *frB_dp); |
| 1070 | } else { |
| 1071 | frA_sp = (unsigned int *)&spec_sp_fargs[a_idx]; |
| 1072 | frB_sp = (unsigned int *)&spec_sp_fargs[b_idx]; |
| 1073 | printf("%08x %s %08x", *frA_sp, test_group->op, *frB_sp); |
| 1074 | } |
| 1075 | targs++; |
| 1076 | } |
| 1077 | if (cc != VX_NOT_CMP_OP) |
| 1078 | printf(" ? cc=%x", cc); |
| 1079 | |
| 1080 | if (print_vec_out) { |
| 1081 | if (dp) { |
| 1082 | dst_dp = (unsigned long long *) &vec_out; |
| 1083 | printf(" => %016llx %016llx\n", dst_dp[0], dst_dp[1]); |
| 1084 | } else { |
| 1085 | dst_sp = (unsigned int *) &vec_out; |
| 1086 | printf(" => %08x %08x %08x %08x\n", dst_sp[0], dst_sp[1], dst_sp[2], dst_sp[3]); |
| 1087 | } |
| 1088 | } else { |
| 1089 | printf("\n"); |
| 1090 | } |
| 1091 | free(name); |
| 1092 | } |
| 1093 | |
| 1094 | |
| 1095 | |
| 1096 | static void test_vsx_one_fp_arg(void) |
| 1097 | { |
| 1098 | test_func_t func; |
| 1099 | int k; |
| 1100 | k = 0; |
| 1101 | build_special_fargs_table(); |
| 1102 | |
| 1103 | while ((func = vsx_one_fp_arg_tests[k].test_func)) { |
| 1104 | int idx, i; |
| 1105 | vx_fp_test_t test_group = vsx_one_fp_arg_tests[k]; |
| 1106 | Bool estimate = (test_group.type == VX_ESTIMATE); |
| 1107 | Bool dp = (test_group.precision == DOUBLE_TEST) ? True : False; |
| 1108 | Bool is_sqrt = (strstr(test_group.name, "sqrt")) ? True : False; |
| 1109 | Bool is_scalar = (strstr(test_group.name, "xs")) ? True : False; |
| 1110 | Bool sparse_sp = False; |
| 1111 | int stride = dp ? 2 : 4; |
| 1112 | int loops = is_scalar ? 1 : stride; |
| 1113 | stride = is_scalar ? 1: stride; |
| 1114 | |
| 1115 | /* For conversions of single to double, the 128-bit input register is sparsely populated: |
| 1116 | * |___ SP___|_Unused_|___SP___|__Unused__| // for vector op |
| 1117 | * or |
| 1118 | * |___ SP___|_Unused_|_Unused_|__Unused__| // for scalar op |
| 1119 | * |
| 1120 | * For the vector op case, we need to adjust stride from '4' to '2', since |
| 1121 | * we'll only be loading two values per loop into the input register. |
| 1122 | */ |
| 1123 | if (!dp && !is_scalar && test_group.type == VX_CONV_TO_DOUBLE) { |
| 1124 | sparse_sp = True; |
| 1125 | stride = 2; |
| 1126 | } |
| 1127 | |
| 1128 | for (i = 0; i < test_group.num_tests; i+=stride) { |
| 1129 | unsigned int * pv; |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1130 | void * inB, * vecB_void_ptr = (void *)&vec_inB; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1131 | |
| 1132 | pv = (unsigned int *)&vec_out; |
| 1133 | // clear vec_out |
| 1134 | for (idx = 0; idx < 4; idx++, pv++) |
| 1135 | *pv = 0; |
| 1136 | |
| 1137 | if (dp) { |
| 1138 | int j; |
| 1139 | unsigned long long * frB_dp, *dst_dp; |
| 1140 | for (j = 0; j < loops; j++) { |
| 1141 | inB = (void *)&spec_fargs[i + j]; |
| 1142 | // copy double precision FP into vector element i |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1143 | if (isLE && is_scalar) |
| 1144 | vecB_void_ptr += 8; |
| 1145 | memcpy(vecB_void_ptr + (j * 8), inB, 8); |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1146 | } |
| 1147 | // execute test insn |
| 1148 | (*func)(); |
| 1149 | dst_dp = (unsigned long long *) &vec_out; |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1150 | if (isLE && is_scalar) |
| 1151 | dst_dp++; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1152 | printf("#%d: %s ", i/stride, test_group.name); |
| 1153 | for (j = 0; j < loops; j++) { |
| 1154 | if (j) |
| 1155 | printf("; "); |
| 1156 | frB_dp = (unsigned long long *)&spec_fargs[i + j]; |
| 1157 | printf("%s(%016llx)", test_group.op, *frB_dp); |
| 1158 | if (estimate) { |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1159 | Bool res = check_estimate(DOUBLE_TEST, is_sqrt, i + j, (isLE && is_scalar) ? 1: j); |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1160 | printf(" ==> %s)", res ? "PASS" : "FAIL"); |
| 1161 | /* For debugging . . . |
| 1162 | printf(" ==> %s (res=%016llx)", res ? "PASS" : "FAIL", dst_dp[j]); |
| 1163 | */ |
| 1164 | } else { |
| 1165 | vx_fp_test_type type = test_group.type; |
| 1166 | switch (type) { |
| 1167 | case VX_SCALAR_CONV_TO_WORD: |
| 1168 | printf(" = %016llx", dst_dp[j] & 0x00000000ffffffffULL); |
| 1169 | break; |
| 1170 | case VX_CONV_TO_SINGLE: |
| 1171 | printf(" = %016llx", dst_dp[j] & 0xffffffff00000000ULL); |
| 1172 | break; |
| 1173 | default: // For VX_CONV_TO_DOUBLE and non-convert instructions . . . |
| 1174 | printf(" = %016llx", dst_dp[j]); |
| 1175 | } |
| 1176 | } |
| 1177 | } |
| 1178 | printf("\n"); |
| 1179 | } else { |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1180 | int j; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1181 | unsigned int * frB_sp, * dst_sp = NULL; |
| 1182 | unsigned long long * dst_dp = NULL; |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1183 | if (sparse_sp) |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1184 | loops = 2; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1185 | for (j = 0; j < loops; j++) { |
| 1186 | inB = (void *)&spec_sp_fargs[i + j]; |
| 1187 | // copy single precision FP into vector element i |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1188 | if (sparse_sp) { |
| 1189 | if (isLE) |
| 1190 | memcpy(vecB_void_ptr + ((2 * j * 4) + 4), inB, 4); |
| 1191 | else |
| 1192 | memcpy(vecB_void_ptr + ((2 * j * 4) ), inB, 4); |
| 1193 | } else { |
| 1194 | if (isLE && is_scalar) |
| 1195 | vecB_void_ptr += 12; |
| 1196 | memcpy(vecB_void_ptr + (j * 4), inB, 4); |
| 1197 | } |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1198 | } |
| 1199 | // execute test insn |
| 1200 | (*func)(); |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1201 | if (test_group.type == VX_CONV_TO_DOUBLE) { |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1202 | dst_dp = (unsigned long long *) &vec_out; |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1203 | if (isLE && is_scalar) |
| 1204 | dst_dp++; |
| 1205 | } else { |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1206 | dst_sp = (unsigned int *) &vec_out; |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1207 | if (isLE && is_scalar) |
| 1208 | dst_sp += 3; |
| 1209 | } |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1210 | // print result |
| 1211 | printf("#%d: %s ", i/stride, test_group.name); |
| 1212 | for (j = 0; j < loops; j++) { |
| 1213 | if (j) |
| 1214 | printf("; "); |
| 1215 | frB_sp = (unsigned int *)&spec_sp_fargs[i + j]; |
| 1216 | printf("%s(%08x)", test_group.op, *frB_sp); |
| 1217 | if (estimate) { |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1218 | Bool res = check_estimate(SINGLE_TEST, is_sqrt, i + j, (isLE && is_scalar) ? 3 : j); |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1219 | printf(" ==> %s)", res ? "PASS" : "FAIL"); |
| 1220 | } else { |
| 1221 | if (test_group.type == VX_CONV_TO_DOUBLE) |
| 1222 | printf(" = %016llx", dst_dp[j]); |
| 1223 | else |
| 1224 | /* Special case: Current VEX implementation for fsqrts (single precision) |
| 1225 | * uses the same implementation as that used for double precision fsqrt. |
| 1226 | * However, I've found that for xvsqrtsp, the result from that implementation |
| 1227 | * may be off by the two LSBs. Generally, even this small inaccuracy can cause the |
| 1228 | * output to appear very different if you end up with a carry. But for the given |
| 1229 | * inputs in this testcase, we can simply mask out these bits. |
| 1230 | */ |
| 1231 | printf(" = %08x", is_sqrt ? (dst_sp[j] & 0xfffffffc) : dst_sp[j]); |
| 1232 | } |
| 1233 | } |
| 1234 | printf("\n"); |
| 1235 | } |
| 1236 | } |
| 1237 | k++; |
| 1238 | printf( "\n" ); |
| 1239 | } |
| 1240 | } |
| 1241 | |
| 1242 | static void test_int_to_fp_convert(void) |
| 1243 | { |
| 1244 | test_func_t func; |
| 1245 | int k; |
| 1246 | k = 0; |
| 1247 | |
| 1248 | while ((func = intToFp_tests[k].test_func)) { |
| 1249 | int idx, i; |
| 1250 | vx_intToFp_test_t test_group = intToFp_tests[k]; |
| 1251 | Bool dp = (test_group.precision == DOUBLE_TEST) ? True : False; |
| 1252 | Bool sparse_sp = False; |
| 1253 | int stride = dp ? 2 : 4; |
| 1254 | int loops = stride; |
| 1255 | |
| 1256 | /* For conversions of single to double, the 128-bit input register is sparsely populated: |
| 1257 | * |___ int___|_Unused_|___int___|__Unused__| // for vector op |
| 1258 | * or |
| 1259 | * We need to adjust stride from '4' to '2', since we'll only be loading |
| 1260 | * two values per loop into the input register. |
| 1261 | */ |
| 1262 | if (!dp && test_group.type == VX_CONV_TO_DOUBLE) { |
| 1263 | sparse_sp = True; |
| 1264 | stride = 2; |
| 1265 | } |
| 1266 | |
| 1267 | for (i = 0; i < test_group.num_tests; i+=stride) { |
| 1268 | unsigned int * pv; |
| 1269 | void * inB; |
| 1270 | |
| 1271 | pv = (unsigned int *)&vec_out; |
| 1272 | // clear vec_out |
| 1273 | for (idx = 0; idx < 4; idx++, pv++) |
| 1274 | *pv = 0; |
| 1275 | |
| 1276 | if (dp) { |
| 1277 | int j; |
| 1278 | unsigned long long *dst_dw, * targs = test_group.targs; |
| 1279 | for (j = 0; j < loops; j++) { |
| 1280 | inB = (void *)&targs[i + j]; |
| 1281 | // copy doubleword into vector element i |
| 1282 | memcpy(((void *)&vec_inB) + (j * 8), inB, 8); |
| 1283 | } |
| 1284 | // execute test insn |
| 1285 | (*func)(); |
| 1286 | dst_dw = (unsigned long long *) &vec_out; |
| 1287 | printf("#%d: %s ", i/stride, test_group.name); |
| 1288 | for (j = 0; j < loops; j++) { |
| 1289 | if (j) |
| 1290 | printf("; "); |
| 1291 | printf("conv(%016llx)", targs[i + j]); |
| 1292 | |
| 1293 | if (test_group.type == VX_CONV_TO_SINGLE) |
| 1294 | printf(" = %016llx", dst_dw[j] & 0xffffffff00000000ULL); |
| 1295 | else |
| 1296 | printf(" = %016llx", dst_dw[j]); |
| 1297 | } |
| 1298 | printf("\n"); |
| 1299 | } else { |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1300 | int j; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1301 | unsigned int * dst_sp = NULL; |
| 1302 | unsigned int * targs = test_group.targs; |
| 1303 | unsigned long long * dst_dp = NULL; |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1304 | void * vecB_void_ptr = (void *)&vec_inB; |
| 1305 | if (sparse_sp) |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1306 | loops = 2; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1307 | for (j = 0; j < loops; j++) { |
| 1308 | inB = (void *)&targs[i + j]; |
| 1309 | // copy single word into vector element i |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1310 | if (sparse_sp) { |
| 1311 | if (isLE) |
| 1312 | memcpy(vecB_void_ptr + ((2 * j * 4) + 4), inB, 4); |
| 1313 | else |
| 1314 | memcpy(vecB_void_ptr + ((2 * j * 4) ), inB, 4); |
| 1315 | } else { |
| 1316 | memcpy(vecB_void_ptr + (j * 4), inB, 4); |
| 1317 | } |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1318 | } |
| 1319 | // execute test insn |
| 1320 | (*func)(); |
| 1321 | if (test_group.type == VX_CONV_TO_DOUBLE) |
| 1322 | dst_dp = (unsigned long long *) &vec_out; |
| 1323 | else |
| 1324 | dst_sp = (unsigned int *) &vec_out; |
| 1325 | // print result |
| 1326 | printf("#%d: %s ", i/stride, test_group.name); |
| 1327 | for (j = 0; j < loops; j++) { |
| 1328 | if (j) |
| 1329 | printf("; "); |
| 1330 | printf("conv(%08x)", targs[i + j]); |
| 1331 | if (test_group.type == VX_CONV_TO_DOUBLE) |
| 1332 | printf(" = %016llx", dst_dp[j]); |
| 1333 | else |
| 1334 | printf(" = %08x", dst_sp[j]); |
| 1335 | } |
| 1336 | printf("\n"); |
| 1337 | } |
| 1338 | } |
| 1339 | k++; |
| 1340 | printf( "\n" ); |
| 1341 | } |
| 1342 | } |
| 1343 | |
| 1344 | |
| 1345 | |
| 1346 | // The div doubleword test data |
| 1347 | signed long long div_dw_tdata[13][2] = { |
| 1348 | { 4, -4 }, |
| 1349 | { 4, -3 }, |
| 1350 | { 4, 4 }, |
| 1351 | { 4, -5 }, |
| 1352 | { 3, 8 }, |
bart | 7ea7aa2 | 2012-06-23 11:04:01 +0000 | [diff] [blame] | 1353 | { 0x8000000000000000ULL, 0xa }, |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1354 | { 0x50c, -1 }, |
| 1355 | { 0x50c, -4096 }, |
| 1356 | { 0x1234fedc, 0x8000a873 }, |
bart | 7ea7aa2 | 2012-06-23 11:04:01 +0000 | [diff] [blame] | 1357 | { 0xabcd87651234fedcULL, 0xa123b893 }, |
| 1358 | { 0x123456789abdcULL, 0 }, |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1359 | { 0, 2 }, |
| 1360 | { 0x77, 0xa3499 } |
| 1361 | }; |
| 1362 | #define dw_tdata_len (sizeof(div_dw_tdata)/sizeof(signed long long)/2) |
| 1363 | |
| 1364 | // The div word test data |
| 1365 | unsigned int div_w_tdata[6][2] = { |
| 1366 | { 0, 2 }, |
| 1367 | { 2, 0 }, |
| 1368 | { 0x7abc1234, 0xf0000000 }, |
| 1369 | { 0xfabc1234, 5 }, |
| 1370 | { 77, 66 }, |
| 1371 | { 5, 0xfabc1234 }, |
| 1372 | }; |
| 1373 | #define w_tdata_len (sizeof(div_w_tdata)/sizeof(unsigned int)/2) |
| 1374 | |
| 1375 | typedef struct div_ext_test |
| 1376 | { |
| 1377 | test_func_t test_func; |
| 1378 | const char *name; |
| 1379 | int num_tests; |
| 1380 | div_type_t div_type; |
| 1381 | precision_type_t precision; |
| 1382 | } div_ext_test_t; |
| 1383 | |
| 1384 | static div_ext_test_t div_tests[] = { |
| 1385 | #ifdef __powerpc64__ |
| 1386 | { &test_divdeu, "divdeu", dw_tdata_len, DIV_BASE, DOUBLE_TEST }, |
| 1387 | { &test_divdeu, "divdeuo", dw_tdata_len, DIV_OE, DOUBLE_TEST }, |
| 1388 | #endif |
| 1389 | { &test_divwe, "divwe", w_tdata_len, DIV_BASE, SINGLE_TEST }, |
| 1390 | { &test_divwe, "divweo", w_tdata_len, DIV_OE, SINGLE_TEST }, |
| 1391 | { NULL, NULL, 0, 0, 0 } |
| 1392 | }; |
| 1393 | |
| 1394 | static void test_div_extensions(void) |
| 1395 | { |
| 1396 | test_func_t func; |
| 1397 | int k; |
| 1398 | k = 0; |
| 1399 | |
| 1400 | while ((func = div_tests[k].test_func)) { |
| 1401 | int i, repeat = 1; |
| 1402 | div_ext_test_t test_group = div_tests[k]; |
| 1403 | do_dot = False; |
| 1404 | |
| 1405 | again: |
| 1406 | for (i = 0; i < test_group.num_tests; i++) { |
| 1407 | unsigned int condreg; |
| 1408 | |
| 1409 | if (test_group.div_type == DIV_OE) |
| 1410 | do_OE = True; |
| 1411 | else |
| 1412 | do_OE = False; |
| 1413 | |
| 1414 | if (test_group.precision == DOUBLE_TEST) { |
| 1415 | r14 = div_dw_tdata[i][0]; |
| 1416 | r15 = div_dw_tdata[i][1]; |
| 1417 | } else { |
| 1418 | r14 = div_w_tdata[i][0]; |
| 1419 | r15 = div_w_tdata[i][1]; |
| 1420 | } |
| 1421 | // execute test insn |
| 1422 | (*func)(); |
| 1423 | condreg = (div_flags & 0xf0000000) >> 28; |
| 1424 | printf("#%d: %s%s: ", i, test_group.name, do_dot ? "." : ""); |
| 1425 | if (test_group.precision == DOUBLE_TEST) { |
| 1426 | printf("0x%016llx0000000000000000 / 0x%016llx = 0x%016llx;", |
| 1427 | div_dw_tdata[i][0], div_dw_tdata[i][1], (signed long long) r17); |
| 1428 | } else { |
| 1429 | printf("0x%08x00000000 / 0x%08x = 0x%08x;", |
| 1430 | div_w_tdata[i][0], div_w_tdata[i][1], (unsigned int) r17); |
| 1431 | } |
| 1432 | printf(" CR=%x; XER=%x\n", condreg, div_xer); |
| 1433 | } |
| 1434 | printf("\n"); |
| 1435 | if (repeat) { |
| 1436 | repeat = 0; |
| 1437 | do_dot = True; |
| 1438 | goto again; |
| 1439 | } |
| 1440 | k++; |
| 1441 | printf( "\n" ); |
| 1442 | } |
| 1443 | } |
| 1444 | |
| 1445 | |
| 1446 | static void test_vx_tdivORtsqrt(void) |
| 1447 | { |
| 1448 | test_func_t func; |
| 1449 | int k, crx; |
| 1450 | unsigned int flags; |
| 1451 | k = 0; |
| 1452 | do_dot = False; |
| 1453 | build_special_fargs_table(); |
| 1454 | |
| 1455 | while ((func = vx_tdivORtsqrt_tests[k].test_func)) { |
| 1456 | int idx, i; |
| 1457 | vx_fp_test_t test_group = vx_tdivORtsqrt_tests[k]; |
| 1458 | Bool dp = (test_group.precision == DOUBLE_TEST) ? True : False; |
| 1459 | Bool is_scalar = (strstr(test_group.name, "xs")) ? True : False; |
| 1460 | Bool two_args = test_group.targs ? True : False; |
| 1461 | int stride = dp ? 2 : 4; |
| 1462 | int loops = is_scalar ? 1 : stride; |
| 1463 | stride = is_scalar ? 1: stride; |
| 1464 | |
| 1465 | for (i = 0; i < test_group.num_tests; i+=stride) { |
| 1466 | unsigned int * pv; |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1467 | void * inB, * vecB_void_ptr = (void *)&vec_inB; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1468 | |
| 1469 | pv = (unsigned int *)&vec_out; |
| 1470 | // clear vec_out |
| 1471 | for (idx = 0; idx < 4; idx++, pv++) |
| 1472 | *pv = 0; |
| 1473 | |
| 1474 | if (dp) { |
| 1475 | int j; |
| 1476 | unsigned long long * frB_dp; |
| 1477 | if (two_args) { |
| 1478 | setup_dp_fp_args(&test_group.targs[i], False); |
| 1479 | } else { |
| 1480 | for (j = 0; j < loops; j++) { |
| 1481 | inB = (void *)&spec_fargs[i + j]; |
| 1482 | // copy double precision FP into vector element i |
carll | dd690bf | 2014-08-07 23:49:27 +0000 | [diff] [blame] | 1483 | if (isLE && is_scalar) |
| 1484 | vecB_void_ptr += 8; |
| 1485 | memcpy(vecB_void_ptr + (j * 8), inB, 8); |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1486 | } |
| 1487 | } |
| 1488 | // execute test insn |
| 1489 | // Must do set/get of CRs immediately before/after calling the asm func |
| 1490 | // to avoid CRs being modified by other instructions. |
| 1491 | SET_FPSCR_ZERO; |
| 1492 | SET_CR_XER_ZERO; |
| 1493 | (*func)(); |
| 1494 | GET_CR(flags); |
| 1495 | // assumes using CR1 |
| 1496 | crx = (flags & 0x0f000000) >> 24; |
| 1497 | if (two_args) { |
| 1498 | print_vector_fp_result(crx, &test_group, i, False/*do not print vec_out*/); |
| 1499 | } else { |
| 1500 | printf("#%d: %s ", i/stride, test_group.name); |
| 1501 | for (j = 0; j < loops; j++) { |
| 1502 | if (j) |
| 1503 | printf("; "); |
| 1504 | frB_dp = (unsigned long long *)&spec_fargs[i + j]; |
| 1505 | printf("%s(%016llx)", test_group.op, *frB_dp); |
| 1506 | } |
| 1507 | printf( " ? %x (CRx)\n", crx); |
| 1508 | } |
| 1509 | } else { |
| 1510 | int j; |
| 1511 | unsigned int * frB_sp; |
| 1512 | if (two_args) { |
| 1513 | setup_sp_fp_args(&test_group.targs[i], False); |
| 1514 | } else { |
| 1515 | for (j = 0; j < loops; j++) { |
| 1516 | inB = (void *)&spec_sp_fargs[i + j]; |
| 1517 | // copy single precision FP into vector element i |
| 1518 | memcpy(((void *)&vec_inB) + (j * 4), inB, 4); |
| 1519 | } |
| 1520 | } |
| 1521 | // execute test insn |
| 1522 | SET_FPSCR_ZERO; |
| 1523 | SET_CR_XER_ZERO; |
| 1524 | (*func)(); |
| 1525 | GET_CR(flags); |
| 1526 | crx = (flags & 0x0f000000) >> 24; |
| 1527 | // print result |
| 1528 | if (two_args) { |
| 1529 | print_vector_fp_result(crx, &test_group, i, False/*do not print vec_out*/); |
| 1530 | } else { |
| 1531 | printf("#%d: %s ", i/stride, test_group.name); |
| 1532 | for (j = 0; j < loops; j++) { |
| 1533 | if (j) |
| 1534 | printf("; "); |
| 1535 | frB_sp = (unsigned int *)&spec_sp_fargs[i + j]; |
| 1536 | printf("%s(%08x)", test_group.op, *frB_sp); |
| 1537 | } |
| 1538 | printf( " ? %x (CRx)\n", crx); |
| 1539 | } |
| 1540 | } |
| 1541 | } |
| 1542 | k++; |
| 1543 | printf( "\n" ); |
| 1544 | } |
| 1545 | } |
| 1546 | |
| 1547 | |
| 1548 | static void test_ftsqrt(void) |
| 1549 | { |
| 1550 | int i, crx; |
| 1551 | unsigned int flags; |
| 1552 | unsigned long long * frbp; |
| 1553 | build_special_fargs_table(); |
| 1554 | |
| 1555 | |
| 1556 | for (i = 0; i < nb_special_fargs; i++) { |
| 1557 | f14 = spec_fargs[i]; |
| 1558 | frbp = (unsigned long long *)&spec_fargs[i]; |
| 1559 | SET_FPSCR_ZERO; |
| 1560 | SET_CR_XER_ZERO; |
| 1561 | __asm__ __volatile__ ("ftsqrt cr1, %0" : : "d" (f14)); |
| 1562 | GET_CR(flags); |
| 1563 | crx = (flags & 0x0f000000) >> 24; |
| 1564 | printf( "ftsqrt: %016llx ? %x (CRx)\n", *frbp, crx); |
| 1565 | } |
| 1566 | printf( "\n" ); |
| 1567 | } |
| 1568 | |
| 1569 | static void |
| 1570 | test_popcntw(void) |
| 1571 | { |
| 1572 | #ifdef __powerpc64__ |
| 1573 | uint64_t res; |
| 1574 | unsigned long long src = 0x9182736405504536ULL; |
| 1575 | r14 = src; |
| 1576 | __asm__ __volatile__ ("popcntw %0, %1" : "=r" (res): "r" (r14)); |
| 1577 | printf("popcntw: 0x%llx => 0x%016llx\n", (unsigned long long)src, (unsigned long long)res); |
| 1578 | #else |
| 1579 | uint32_t res; |
| 1580 | unsigned int src = 0x9182730E; |
| 1581 | r14 = src; |
| 1582 | __asm__ __volatile__ ("popcntw %0, %1" : "=r" (res): "r" (r14)); |
| 1583 | printf("popcntw: 0x%x => 0x%08x\n", src, (int)res); |
| 1584 | #endif |
| 1585 | printf( "\n" ); |
| 1586 | } |
| 1587 | |
| 1588 | |
| 1589 | static test_table_t |
| 1590 | all_tests[] = |
| 1591 | { |
| 1592 | |
| 1593 | { &test_vsx_one_fp_arg, |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1594 | "Test VSX vector and scalar single argument instructions", OTHER_INST } , |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1595 | { &test_int_to_fp_convert, |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1596 | "Test VSX vector integer to float conversion instructions", OTHER_INST }, |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1597 | { &test_div_extensions, |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1598 | "Test div extensions", SCALAR_DIV_INST }, |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1599 | { &test_ftsqrt, |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1600 | "Test ftsqrt instruction", OTHER_INST }, |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1601 | { &test_vx_tdivORtsqrt, |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1602 | "Test vector and scalar tdiv and tsqrt instructions", OTHER_INST }, |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1603 | { &test_popcntw, |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1604 | "Test popcntw instruction", OTHER_INST }, |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1605 | { NULL, NULL } |
| 1606 | }; |
| 1607 | #endif // HAS_VSX |
| 1608 | |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1609 | static void usage (void) |
| 1610 | { |
| 1611 | fprintf(stderr, |
| 1612 | "Usage: test_isa_3_0 [OPTIONS]\n" |
| 1613 | "\t-d: test scalar division instructions (default)\n" |
| 1614 | "\t-o: test non scalar division instructions (default)\n" |
| 1615 | "\t-A: test all instructions (default)\n" |
| 1616 | "\t-h: display this help and exit\n" |
| 1617 | ); |
| 1618 | } |
| 1619 | |
| 1620 | int main(int argc, char **argv) |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1621 | { |
| 1622 | #ifdef HAS_VSX |
| 1623 | |
| 1624 | test_table_t aTest; |
| 1625 | test_func_t func; |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1626 | int c; |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1627 | int i = 0; |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1628 | unsigned int test_run_mask = 0; |
| 1629 | |
| 1630 | /* NOTE, ISA 3.0 introduces the OV32 and CA32 bits in the FPSCR. These |
| 1631 | * bits are set on various arithimetic instructions. This means this |
| 1632 | * test generates different FPSCR output for pre ISA 3.0 versus ISA 3.0 |
| 1633 | * hardware. The tests have been grouped so that the tests that generate |
| 1634 | * different results are in one test and the rest are in a different test. |
| 1635 | * this minimizes the size of the result expect files for the two cases. |
| 1636 | */ |
| 1637 | |
| 1638 | while ((c = getopt(argc, argv, "doAh")) != -1) { |
| 1639 | switch (c) { |
| 1640 | case 'd': |
| 1641 | test_run_mask |= SCALAR_DIV_INST; |
| 1642 | break; |
| 1643 | case 'o': |
| 1644 | test_run_mask |= OTHER_INST; |
| 1645 | break; |
| 1646 | case 'A': |
| 1647 | test_run_mask = 0xFFFF; |
| 1648 | break; |
| 1649 | case 'h': |
| 1650 | usage(); |
| 1651 | return 0; |
| 1652 | |
| 1653 | default: |
| 1654 | usage(); |
| 1655 | fprintf(stderr, "Unknown argument: '%c'\n", c); |
| 1656 | return 1; |
| 1657 | } |
| 1658 | } |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1659 | |
| 1660 | while ((func = all_tests[i].test_category)) { |
| 1661 | aTest = all_tests[i]; |
Elliott Hughes | ed39800 | 2017-06-21 14:41:24 -0700 | [diff] [blame^] | 1662 | |
| 1663 | if(test_run_mask & aTest.test_group) { |
| 1664 | /* Test group specified on command line */ |
| 1665 | |
| 1666 | printf( "%s\n", aTest.name ); |
| 1667 | (*func)(); |
| 1668 | } |
sewardj | 2062dc6 | 2011-09-05 12:15:16 +0000 | [diff] [blame] | 1669 | i++; |
| 1670 | } |
| 1671 | if (spec_fargs) |
| 1672 | free(spec_fargs); |
| 1673 | if (spec_sp_fargs) |
| 1674 | free(spec_sp_fargs); |
| 1675 | |
| 1676 | #endif // HAS _VSX |
| 1677 | |
| 1678 | return 0; |
| 1679 | } |