| 1 | /* |
| 2 | * QEMU TCG support -- s390x vector floating point instruction support |
| 3 | * |
| 4 | * Copyright (C) 2019 Red Hat Inc |
| 5 | * |
| 6 | * Authors: |
| 7 | * David Hildenbrand <david@redhat.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 10 | * See the COPYING file in the top-level directory. |
| 11 | */ |
| 12 | #include "qemu/osdep.h" |
| 13 | #include "cpu.h" |
| 14 | #include "s390x-internal.h" |
| 15 | #include "vec.h" |
| 16 | #include "tcg_s390x.h" |
| 17 | #include "tcg/tcg-gvec-desc.h" |
| 18 | #include "exec/helper-proto.h" |
| 19 | #include "fpu/softfloat.h" |
| 20 | |
| 21 | #define VIC_INVALID 0x1 |
| 22 | #define VIC_DIVBYZERO 0x2 |
| 23 | #define VIC_OVERFLOW 0x3 |
| 24 | #define VIC_UNDERFLOW 0x4 |
| 25 | #define VIC_INEXACT 0x5 |
| 26 | |
| 27 | /* returns the VEX. If the VEX is 0, there is no trap */ |
| 28 | static uint8_t check_ieee_exc(CPUS390XState *env, uint8_t enr, bool XxC, |
| 29 | uint8_t *vec_exc) |
| 30 | { |
| 31 | uint8_t vece_exc = 0, trap_exc; |
| 32 | unsigned qemu_exc; |
| 33 | |
| 34 | /* Retrieve and clear the softfloat exceptions */ |
| 35 | qemu_exc = env->fpu_status.float_exception_flags; |
| 36 | if (qemu_exc == 0) { |
| 37 | return 0; |
| 38 | } |
| 39 | env->fpu_status.float_exception_flags = 0; |
| 40 | |
| 41 | vece_exc = s390_softfloat_exc_to_ieee(qemu_exc); |
| 42 | |
| 43 | /* Add them to the vector-wide s390x exception bits */ |
| 44 | *vec_exc |= vece_exc; |
| 45 | |
| 46 | /* Check for traps and construct the VXC */ |
| 47 | trap_exc = vece_exc & env->fpc >> 24; |
| 48 | if (trap_exc) { |
| 49 | if (trap_exc & S390_IEEE_MASK_INVALID) { |
| 50 | return enr << 4 | VIC_INVALID; |
| 51 | } else if (trap_exc & S390_IEEE_MASK_DIVBYZERO) { |
| 52 | return enr << 4 | VIC_DIVBYZERO; |
| 53 | } else if (trap_exc & S390_IEEE_MASK_OVERFLOW) { |
| 54 | return enr << 4 | VIC_OVERFLOW; |
| 55 | } else if (trap_exc & S390_IEEE_MASK_UNDERFLOW) { |
| 56 | return enr << 4 | VIC_UNDERFLOW; |
| 57 | } else if (!XxC) { |
| 58 | g_assert(trap_exc & S390_IEEE_MASK_INEXACT); |
| 59 | /* inexact has lowest priority on traps */ |
| 60 | return enr << 4 | VIC_INEXACT; |
| 61 | } |
| 62 | } |
| 63 | return 0; |
| 64 | } |
| 65 | |
| 66 | static void handle_ieee_exc(CPUS390XState *env, uint8_t vxc, uint8_t vec_exc, |
| 67 | uintptr_t retaddr) |
| 68 | { |
| 69 | if (vxc) { |
| 70 | /* on traps, the fpc flags are not updated, instruction is suppressed */ |
| 71 | tcg_s390_vector_exception(env, vxc, retaddr); |
| 72 | } |
| 73 | if (vec_exc) { |
| 74 | /* indicate exceptions for all elements combined */ |
| 75 | env->fpc |= vec_exc << 16; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | static float32 s390_vec_read_float32(const S390Vector *v, uint8_t enr) |
| 80 | { |
| 81 | return make_float32(s390_vec_read_element32(v, enr)); |
| 82 | } |
| 83 | |
| 84 | static float64 s390_vec_read_float64(const S390Vector *v, uint8_t enr) |
| 85 | { |
| 86 | return make_float64(s390_vec_read_element64(v, enr)); |
| 87 | } |
| 88 | |
| 89 | static float128 s390_vec_read_float128(const S390Vector *v) |
| 90 | { |
| 91 | return make_float128(s390_vec_read_element64(v, 0), |
| 92 | s390_vec_read_element64(v, 1)); |
| 93 | } |
| 94 | |
| 95 | static void s390_vec_write_float32(S390Vector *v, uint8_t enr, float32 data) |
| 96 | { |
| 97 | return s390_vec_write_element32(v, enr, data); |
| 98 | } |
| 99 | |
| 100 | static void s390_vec_write_float64(S390Vector *v, uint8_t enr, float64 data) |
| 101 | { |
| 102 | return s390_vec_write_element64(v, enr, data); |
| 103 | } |
| 104 | |
| 105 | static void s390_vec_write_float128(S390Vector *v, float128 data) |
| 106 | { |
| 107 | s390_vec_write_element64(v, 0, data.high); |
| 108 | s390_vec_write_element64(v, 1, data.low); |
| 109 | } |
| 110 | |
| 111 | typedef float32 (*vop32_2_fn)(float32 a, float_status *s); |
| 112 | static void vop32_2(S390Vector *v1, const S390Vector *v2, CPUS390XState *env, |
| 113 | bool s, bool XxC, uint8_t erm, vop32_2_fn fn, |
| 114 | uintptr_t retaddr) |
| 115 | { |
| 116 | uint8_t vxc, vec_exc = 0; |
| 117 | S390Vector tmp = {}; |
| 118 | int i, old_mode; |
| 119 | |
| 120 | old_mode = s390_swap_bfp_rounding_mode(env, erm); |
| 121 | for (i = 0; i < 4; i++) { |
| 122 | const float32 a = s390_vec_read_float32(v2, i); |
| 123 | |
| 124 | s390_vec_write_float32(&tmp, i, fn(a, &env->fpu_status)); |
| 125 | vxc = check_ieee_exc(env, i, XxC, &vec_exc); |
| 126 | if (s || vxc) { |
| 127 | break; |
| 128 | } |
| 129 | } |
| 130 | s390_restore_bfp_rounding_mode(env, old_mode); |
| 131 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 132 | *v1 = tmp; |
| 133 | } |
| 134 | |
| 135 | typedef float64 (*vop64_2_fn)(float64 a, float_status *s); |
| 136 | static void vop64_2(S390Vector *v1, const S390Vector *v2, CPUS390XState *env, |
| 137 | bool s, bool XxC, uint8_t erm, vop64_2_fn fn, |
| 138 | uintptr_t retaddr) |
| 139 | { |
| 140 | uint8_t vxc, vec_exc = 0; |
| 141 | S390Vector tmp = {}; |
| 142 | int i, old_mode; |
| 143 | |
| 144 | old_mode = s390_swap_bfp_rounding_mode(env, erm); |
| 145 | for (i = 0; i < 2; i++) { |
| 146 | const float64 a = s390_vec_read_float64(v2, i); |
| 147 | |
| 148 | s390_vec_write_float64(&tmp, i, fn(a, &env->fpu_status)); |
| 149 | vxc = check_ieee_exc(env, i, XxC, &vec_exc); |
| 150 | if (s || vxc) { |
| 151 | break; |
| 152 | } |
| 153 | } |
| 154 | s390_restore_bfp_rounding_mode(env, old_mode); |
| 155 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 156 | *v1 = tmp; |
| 157 | } |
| 158 | |
| 159 | typedef float128 (*vop128_2_fn)(float128 a, float_status *s); |
| 160 | static void vop128_2(S390Vector *v1, const S390Vector *v2, CPUS390XState *env, |
| 161 | bool s, bool XxC, uint8_t erm, vop128_2_fn fn, |
| 162 | uintptr_t retaddr) |
| 163 | { |
| 164 | const float128 a = s390_vec_read_float128(v2); |
| 165 | uint8_t vxc, vec_exc = 0; |
| 166 | S390Vector tmp = {}; |
| 167 | int old_mode; |
| 168 | |
| 169 | old_mode = s390_swap_bfp_rounding_mode(env, erm); |
| 170 | s390_vec_write_float128(&tmp, fn(a, &env->fpu_status)); |
| 171 | vxc = check_ieee_exc(env, 0, XxC, &vec_exc); |
| 172 | s390_restore_bfp_rounding_mode(env, old_mode); |
| 173 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 174 | *v1 = tmp; |
| 175 | } |
| 176 | |
| 177 | static float32 vcdg32(float32 a, float_status *s) |
| 178 | { |
| 179 | return int32_to_float32(a, s); |
| 180 | } |
| 181 | |
| 182 | static float32 vcdlg32(float32 a, float_status *s) |
| 183 | { |
| 184 | return uint32_to_float32(a, s); |
| 185 | } |
| 186 | |
| 187 | static float32 vcgd32(float32 a, float_status *s) |
| 188 | { |
| 189 | const float32 tmp = float32_to_int32(a, s); |
| 190 | |
| 191 | return float32_is_any_nan(a) ? INT32_MIN : tmp; |
| 192 | } |
| 193 | |
| 194 | static float32 vclgd32(float32 a, float_status *s) |
| 195 | { |
| 196 | const float32 tmp = float32_to_uint32(a, s); |
| 197 | |
| 198 | return float32_is_any_nan(a) ? 0 : tmp; |
| 199 | } |
| 200 | |
| 201 | static float64 vcdg64(float64 a, float_status *s) |
| 202 | { |
| 203 | return int64_to_float64(a, s); |
| 204 | } |
| 205 | |
| 206 | static float64 vcdlg64(float64 a, float_status *s) |
| 207 | { |
| 208 | return uint64_to_float64(a, s); |
| 209 | } |
| 210 | |
| 211 | static float64 vcgd64(float64 a, float_status *s) |
| 212 | { |
| 213 | const float64 tmp = float64_to_int64(a, s); |
| 214 | |
| 215 | return float64_is_any_nan(a) ? INT64_MIN : tmp; |
| 216 | } |
| 217 | |
| 218 | static float64 vclgd64(float64 a, float_status *s) |
| 219 | { |
| 220 | const float64 tmp = float64_to_uint64(a, s); |
| 221 | |
| 222 | return float64_is_any_nan(a) ? 0 : tmp; |
| 223 | } |
| 224 | |
| 225 | #define DEF_GVEC_VOP2_FN(NAME, FN, BITS) \ |
| 226 | void HELPER(gvec_##NAME##BITS)(void *v1, const void *v2, CPUS390XState *env, \ |
| 227 | uint32_t desc) \ |
| 228 | { \ |
| 229 | const uint8_t erm = extract32(simd_data(desc), 4, 4); \ |
| 230 | const bool se = extract32(simd_data(desc), 3, 1); \ |
| 231 | const bool XxC = extract32(simd_data(desc), 2, 1); \ |
| 232 | \ |
| 233 | vop##BITS##_2(v1, v2, env, se, XxC, erm, FN, GETPC()); \ |
| 234 | } |
| 235 | |
| 236 | #define DEF_GVEC_VOP2_32(NAME) \ |
| 237 | DEF_GVEC_VOP2_FN(NAME, NAME##32, 32) |
| 238 | |
| 239 | #define DEF_GVEC_VOP2_64(NAME) \ |
| 240 | DEF_GVEC_VOP2_FN(NAME, NAME##64, 64) |
| 241 | |
| 242 | #define DEF_GVEC_VOP2(NAME, OP) \ |
| 243 | DEF_GVEC_VOP2_FN(NAME, float32_##OP, 32) \ |
| 244 | DEF_GVEC_VOP2_FN(NAME, float64_##OP, 64) \ |
| 245 | DEF_GVEC_VOP2_FN(NAME, float128_##OP, 128) |
| 246 | |
| 247 | DEF_GVEC_VOP2_32(vcdg) |
| 248 | DEF_GVEC_VOP2_32(vcdlg) |
| 249 | DEF_GVEC_VOP2_32(vcgd) |
| 250 | DEF_GVEC_VOP2_32(vclgd) |
| 251 | DEF_GVEC_VOP2_64(vcdg) |
| 252 | DEF_GVEC_VOP2_64(vcdlg) |
| 253 | DEF_GVEC_VOP2_64(vcgd) |
| 254 | DEF_GVEC_VOP2_64(vclgd) |
| 255 | DEF_GVEC_VOP2(vfi, round_to_int) |
| 256 | DEF_GVEC_VOP2(vfsq, sqrt) |
| 257 | |
| 258 | typedef float32 (*vop32_3_fn)(float32 a, float32 b, float_status *s); |
| 259 | static void vop32_3(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, |
| 260 | CPUS390XState *env, bool s, vop32_3_fn fn, |
| 261 | uintptr_t retaddr) |
| 262 | { |
| 263 | uint8_t vxc, vec_exc = 0; |
| 264 | S390Vector tmp = {}; |
| 265 | int i; |
| 266 | |
| 267 | for (i = 0; i < 4; i++) { |
| 268 | const float32 a = s390_vec_read_float32(v2, i); |
| 269 | const float32 b = s390_vec_read_float32(v3, i); |
| 270 | |
| 271 | s390_vec_write_float32(&tmp, i, fn(a, b, &env->fpu_status)); |
| 272 | vxc = check_ieee_exc(env, i, false, &vec_exc); |
| 273 | if (s || vxc) { |
| 274 | break; |
| 275 | } |
| 276 | } |
| 277 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 278 | *v1 = tmp; |
| 279 | } |
| 280 | |
| 281 | typedef float64 (*vop64_3_fn)(float64 a, float64 b, float_status *s); |
| 282 | static void vop64_3(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, |
| 283 | CPUS390XState *env, bool s, vop64_3_fn fn, |
| 284 | uintptr_t retaddr) |
| 285 | { |
| 286 | uint8_t vxc, vec_exc = 0; |
| 287 | S390Vector tmp = {}; |
| 288 | int i; |
| 289 | |
| 290 | for (i = 0; i < 2; i++) { |
| 291 | const float64 a = s390_vec_read_float64(v2, i); |
| 292 | const float64 b = s390_vec_read_float64(v3, i); |
| 293 | |
| 294 | s390_vec_write_float64(&tmp, i, fn(a, b, &env->fpu_status)); |
| 295 | vxc = check_ieee_exc(env, i, false, &vec_exc); |
| 296 | if (s || vxc) { |
| 297 | break; |
| 298 | } |
| 299 | } |
| 300 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 301 | *v1 = tmp; |
| 302 | } |
| 303 | |
| 304 | typedef float128 (*vop128_3_fn)(float128 a, float128 b, float_status *s); |
| 305 | static void vop128_3(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, |
| 306 | CPUS390XState *env, bool s, vop128_3_fn fn, |
| 307 | uintptr_t retaddr) |
| 308 | { |
| 309 | const float128 a = s390_vec_read_float128(v2); |
| 310 | const float128 b = s390_vec_read_float128(v3); |
| 311 | uint8_t vxc, vec_exc = 0; |
| 312 | S390Vector tmp = {}; |
| 313 | |
| 314 | s390_vec_write_float128(&tmp, fn(a, b, &env->fpu_status)); |
| 315 | vxc = check_ieee_exc(env, 0, false, &vec_exc); |
| 316 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 317 | *v1 = tmp; |
| 318 | } |
| 319 | |
| 320 | #define DEF_GVEC_VOP3_B(NAME, OP, BITS) \ |
| 321 | void HELPER(gvec_##NAME##BITS)(void *v1, const void *v2, const void *v3, \ |
| 322 | CPUS390XState *env, uint32_t desc) \ |
| 323 | { \ |
| 324 | const bool se = extract32(simd_data(desc), 3, 1); \ |
| 325 | \ |
| 326 | vop##BITS##_3(v1, v2, v3, env, se, float##BITS##_##OP, GETPC()); \ |
| 327 | } |
| 328 | |
| 329 | #define DEF_GVEC_VOP3(NAME, OP) \ |
| 330 | DEF_GVEC_VOP3_B(NAME, OP, 32) \ |
| 331 | DEF_GVEC_VOP3_B(NAME, OP, 64) \ |
| 332 | DEF_GVEC_VOP3_B(NAME, OP, 128) |
| 333 | |
| 334 | DEF_GVEC_VOP3(vfa, add) |
| 335 | DEF_GVEC_VOP3(vfs, sub) |
| 336 | DEF_GVEC_VOP3(vfd, div) |
| 337 | DEF_GVEC_VOP3(vfm, mul) |
| 338 | |
| 339 | static int wfc32(const S390Vector *v1, const S390Vector *v2, |
| 340 | CPUS390XState *env, bool signal, uintptr_t retaddr) |
| 341 | { |
| 342 | /* only the zero-indexed elements are compared */ |
| 343 | const float32 a = s390_vec_read_float32(v1, 0); |
| 344 | const float32 b = s390_vec_read_float32(v2, 0); |
| 345 | uint8_t vxc, vec_exc = 0; |
| 346 | int cmp; |
| 347 | |
| 348 | if (signal) { |
| 349 | cmp = float32_compare(a, b, &env->fpu_status); |
| 350 | } else { |
| 351 | cmp = float32_compare_quiet(a, b, &env->fpu_status); |
| 352 | } |
| 353 | vxc = check_ieee_exc(env, 0, false, &vec_exc); |
| 354 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 355 | |
| 356 | return float_comp_to_cc(env, cmp); |
| 357 | } |
| 358 | |
| 359 | static int wfc64(const S390Vector *v1, const S390Vector *v2, |
| 360 | CPUS390XState *env, bool signal, uintptr_t retaddr) |
| 361 | { |
| 362 | /* only the zero-indexed elements are compared */ |
| 363 | const float64 a = s390_vec_read_float64(v1, 0); |
| 364 | const float64 b = s390_vec_read_float64(v2, 0); |
| 365 | uint8_t vxc, vec_exc = 0; |
| 366 | int cmp; |
| 367 | |
| 368 | if (signal) { |
| 369 | cmp = float64_compare(a, b, &env->fpu_status); |
| 370 | } else { |
| 371 | cmp = float64_compare_quiet(a, b, &env->fpu_status); |
| 372 | } |
| 373 | vxc = check_ieee_exc(env, 0, false, &vec_exc); |
| 374 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 375 | |
| 376 | return float_comp_to_cc(env, cmp); |
| 377 | } |
| 378 | |
| 379 | static int wfc128(const S390Vector *v1, const S390Vector *v2, |
| 380 | CPUS390XState *env, bool signal, uintptr_t retaddr) |
| 381 | { |
| 382 | /* only the zero-indexed elements are compared */ |
| 383 | const float128 a = s390_vec_read_float128(v1); |
| 384 | const float128 b = s390_vec_read_float128(v2); |
| 385 | uint8_t vxc, vec_exc = 0; |
| 386 | int cmp; |
| 387 | |
| 388 | if (signal) { |
| 389 | cmp = float128_compare(a, b, &env->fpu_status); |
| 390 | } else { |
| 391 | cmp = float128_compare_quiet(a, b, &env->fpu_status); |
| 392 | } |
| 393 | vxc = check_ieee_exc(env, 0, false, &vec_exc); |
| 394 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 395 | |
| 396 | return float_comp_to_cc(env, cmp); |
| 397 | } |
| 398 | |
| 399 | #define DEF_GVEC_WFC_B(NAME, SIGNAL, BITS) \ |
| 400 | void HELPER(gvec_##NAME##BITS)(const void *v1, const void *v2, \ |
| 401 | CPUS390XState *env, uint32_t desc) \ |
| 402 | { \ |
| 403 | env->cc_op = wfc##BITS(v1, v2, env, SIGNAL, GETPC()); \ |
| 404 | } |
| 405 | |
| 406 | #define DEF_GVEC_WFC(NAME, SIGNAL) \ |
| 407 | DEF_GVEC_WFC_B(NAME, SIGNAL, 32) \ |
| 408 | DEF_GVEC_WFC_B(NAME, SIGNAL, 64) \ |
| 409 | DEF_GVEC_WFC_B(NAME, SIGNAL, 128) |
| 410 | |
| 411 | DEF_GVEC_WFC(wfc, false) |
| 412 | DEF_GVEC_WFC(wfk, true) |
| 413 | |
| 414 | typedef bool (*vfc32_fn)(float32 a, float32 b, float_status *status); |
| 415 | static int vfc32(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, |
| 416 | CPUS390XState *env, bool s, vfc32_fn fn, uintptr_t retaddr) |
| 417 | { |
| 418 | uint8_t vxc, vec_exc = 0; |
| 419 | S390Vector tmp = {}; |
| 420 | int match = 0; |
| 421 | int i; |
| 422 | |
| 423 | for (i = 0; i < 4; i++) { |
| 424 | const float32 a = s390_vec_read_float32(v2, i); |
| 425 | const float32 b = s390_vec_read_float32(v3, i); |
| 426 | |
| 427 | /* swap the order of the parameters, so we can use existing functions */ |
| 428 | if (fn(b, a, &env->fpu_status)) { |
| 429 | match++; |
| 430 | s390_vec_write_element32(&tmp, i, -1u); |
| 431 | } |
| 432 | vxc = check_ieee_exc(env, i, false, &vec_exc); |
| 433 | if (s || vxc) { |
| 434 | break; |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 439 | *v1 = tmp; |
| 440 | if (match) { |
| 441 | return s || match == 4 ? 0 : 1; |
| 442 | } |
| 443 | return 3; |
| 444 | } |
| 445 | |
| 446 | typedef bool (*vfc64_fn)(float64 a, float64 b, float_status *status); |
| 447 | static int vfc64(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, |
| 448 | CPUS390XState *env, bool s, vfc64_fn fn, uintptr_t retaddr) |
| 449 | { |
| 450 | uint8_t vxc, vec_exc = 0; |
| 451 | S390Vector tmp = {}; |
| 452 | int match = 0; |
| 453 | int i; |
| 454 | |
| 455 | for (i = 0; i < 2; i++) { |
| 456 | const float64 a = s390_vec_read_float64(v2, i); |
| 457 | const float64 b = s390_vec_read_float64(v3, i); |
| 458 | |
| 459 | /* swap the order of the parameters, so we can use existing functions */ |
| 460 | if (fn(b, a, &env->fpu_status)) { |
| 461 | match++; |
| 462 | s390_vec_write_element64(&tmp, i, -1ull); |
| 463 | } |
| 464 | vxc = check_ieee_exc(env, i, false, &vec_exc); |
| 465 | if (s || vxc) { |
| 466 | break; |
| 467 | } |
| 468 | } |
| 469 | |
| 470 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 471 | *v1 = tmp; |
| 472 | if (match) { |
| 473 | return s || match == 2 ? 0 : 1; |
| 474 | } |
| 475 | return 3; |
| 476 | } |
| 477 | |
| 478 | typedef bool (*vfc128_fn)(float128 a, float128 b, float_status *status); |
| 479 | static int vfc128(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, |
| 480 | CPUS390XState *env, bool s, vfc128_fn fn, uintptr_t retaddr) |
| 481 | { |
| 482 | const float128 a = s390_vec_read_float128(v2); |
| 483 | const float128 b = s390_vec_read_float128(v3); |
| 484 | uint8_t vxc, vec_exc = 0; |
| 485 | S390Vector tmp = {}; |
| 486 | bool match = false; |
| 487 | |
| 488 | /* swap the order of the parameters, so we can use existing functions */ |
| 489 | if (fn(b, a, &env->fpu_status)) { |
| 490 | match = true; |
| 491 | s390_vec_write_element64(&tmp, 0, -1ull); |
| 492 | s390_vec_write_element64(&tmp, 1, -1ull); |
| 493 | } |
| 494 | vxc = check_ieee_exc(env, 0, false, &vec_exc); |
| 495 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 496 | *v1 = tmp; |
| 497 | return match ? 0 : 3; |
| 498 | } |
| 499 | |
| 500 | #define DEF_GVEC_VFC_B(NAME, OP, BITS) \ |
| 501 | void HELPER(gvec_##NAME##BITS)(void *v1, const void *v2, const void *v3, \ |
| 502 | CPUS390XState *env, uint32_t desc) \ |
| 503 | { \ |
| 504 | const bool se = extract32(simd_data(desc), 3, 1); \ |
| 505 | const bool sq = extract32(simd_data(desc), 2, 1); \ |
| 506 | vfc##BITS##_fn fn = sq ? float##BITS##_##OP : float##BITS##_##OP##_quiet; \ |
| 507 | \ |
| 508 | vfc##BITS(v1, v2, v3, env, se, fn, GETPC()); \ |
| 509 | } \ |
| 510 | \ |
| 511 | void HELPER(gvec_##NAME##BITS##_cc)(void *v1, const void *v2, const void *v3, \ |
| 512 | CPUS390XState *env, uint32_t desc) \ |
| 513 | { \ |
| 514 | const bool se = extract32(simd_data(desc), 3, 1); \ |
| 515 | const bool sq = extract32(simd_data(desc), 2, 1); \ |
| 516 | vfc##BITS##_fn fn = sq ? float##BITS##_##OP : float##BITS##_##OP##_quiet; \ |
| 517 | \ |
| 518 | env->cc_op = vfc##BITS(v1, v2, v3, env, se, fn, GETPC()); \ |
| 519 | } |
| 520 | |
| 521 | #define DEF_GVEC_VFC(NAME, OP) \ |
| 522 | DEF_GVEC_VFC_B(NAME, OP, 32) \ |
| 523 | DEF_GVEC_VFC_B(NAME, OP, 64) \ |
| 524 | DEF_GVEC_VFC_B(NAME, OP, 128) \ |
| 525 | |
| 526 | DEF_GVEC_VFC(vfce, eq) |
| 527 | DEF_GVEC_VFC(vfch, lt) |
| 528 | DEF_GVEC_VFC(vfche, le) |
| 529 | |
| 530 | void HELPER(gvec_vfll32)(void *v1, const void *v2, CPUS390XState *env, |
| 531 | uint32_t desc) |
| 532 | { |
| 533 | const bool s = extract32(simd_data(desc), 3, 1); |
| 534 | uint8_t vxc, vec_exc = 0; |
| 535 | S390Vector tmp = {}; |
| 536 | int i; |
| 537 | |
| 538 | for (i = 0; i < 2; i++) { |
| 539 | /* load from even element */ |
| 540 | const float32 a = s390_vec_read_element32(v2, i * 2); |
| 541 | const uint64_t ret = float32_to_float64(a, &env->fpu_status); |
| 542 | |
| 543 | s390_vec_write_element64(&tmp, i, ret); |
| 544 | /* indicate the source element */ |
| 545 | vxc = check_ieee_exc(env, i * 2, false, &vec_exc); |
| 546 | if (s || vxc) { |
| 547 | break; |
| 548 | } |
| 549 | } |
| 550 | handle_ieee_exc(env, vxc, vec_exc, GETPC()); |
| 551 | *(S390Vector *)v1 = tmp; |
| 552 | } |
| 553 | |
| 554 | void HELPER(gvec_vfll64)(void *v1, const void *v2, CPUS390XState *env, |
| 555 | uint32_t desc) |
| 556 | { |
| 557 | /* load from even element */ |
| 558 | const float128 ret = float64_to_float128(s390_vec_read_float64(v2, 0), |
| 559 | &env->fpu_status); |
| 560 | uint8_t vxc, vec_exc = 0; |
| 561 | |
| 562 | vxc = check_ieee_exc(env, 0, false, &vec_exc); |
| 563 | handle_ieee_exc(env, vxc, vec_exc, GETPC()); |
| 564 | s390_vec_write_float128(v1, ret); |
| 565 | } |
| 566 | |
| 567 | void HELPER(gvec_vflr64)(void *v1, const void *v2, CPUS390XState *env, |
| 568 | uint32_t desc) |
| 569 | { |
| 570 | const uint8_t erm = extract32(simd_data(desc), 4, 4); |
| 571 | const bool s = extract32(simd_data(desc), 3, 1); |
| 572 | const bool XxC = extract32(simd_data(desc), 2, 1); |
| 573 | uint8_t vxc, vec_exc = 0; |
| 574 | S390Vector tmp = {}; |
| 575 | int i, old_mode; |
| 576 | |
| 577 | old_mode = s390_swap_bfp_rounding_mode(env, erm); |
| 578 | for (i = 0; i < 2; i++) { |
| 579 | float64 a = s390_vec_read_element64(v2, i); |
| 580 | uint32_t ret = float64_to_float32(a, &env->fpu_status); |
| 581 | |
| 582 | /* place at even element */ |
| 583 | s390_vec_write_element32(&tmp, i * 2, ret); |
| 584 | /* indicate the source element */ |
| 585 | vxc = check_ieee_exc(env, i, XxC, &vec_exc); |
| 586 | if (s || vxc) { |
| 587 | break; |
| 588 | } |
| 589 | } |
| 590 | s390_restore_bfp_rounding_mode(env, old_mode); |
| 591 | handle_ieee_exc(env, vxc, vec_exc, GETPC()); |
| 592 | *(S390Vector *)v1 = tmp; |
| 593 | } |
| 594 | |
| 595 | void HELPER(gvec_vflr128)(void *v1, const void *v2, CPUS390XState *env, |
| 596 | uint32_t desc) |
| 597 | { |
| 598 | const uint8_t erm = extract32(simd_data(desc), 4, 4); |
| 599 | const bool XxC = extract32(simd_data(desc), 2, 1); |
| 600 | uint8_t vxc, vec_exc = 0; |
| 601 | int old_mode; |
| 602 | float64 ret; |
| 603 | |
| 604 | old_mode = s390_swap_bfp_rounding_mode(env, erm); |
| 605 | ret = float128_to_float64(s390_vec_read_float128(v2), &env->fpu_status); |
| 606 | vxc = check_ieee_exc(env, 0, XxC, &vec_exc); |
| 607 | s390_restore_bfp_rounding_mode(env, old_mode); |
| 608 | handle_ieee_exc(env, vxc, vec_exc, GETPC()); |
| 609 | |
| 610 | /* place at even element, odd element is unpredictable */ |
| 611 | s390_vec_write_float64(v1, 0, ret); |
| 612 | } |
| 613 | |
| 614 | static void vfma32(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, |
| 615 | const S390Vector *v4, CPUS390XState *env, bool s, int flags, |
| 616 | uintptr_t retaddr) |
| 617 | { |
| 618 | uint8_t vxc, vec_exc = 0; |
| 619 | S390Vector tmp = {}; |
| 620 | int i; |
| 621 | |
| 622 | for (i = 0; i < 4; i++) { |
| 623 | const float32 a = s390_vec_read_float32(v3, i); |
| 624 | const float32 b = s390_vec_read_float32(v2, i); |
| 625 | const float32 c = s390_vec_read_float32(v4, i); |
| 626 | float32 ret = float32_muladd(a, b, c, flags, &env->fpu_status); |
| 627 | |
| 628 | s390_vec_write_float32(&tmp, i, ret); |
| 629 | vxc = check_ieee_exc(env, i, false, &vec_exc); |
| 630 | if (s || vxc) { |
| 631 | break; |
| 632 | } |
| 633 | } |
| 634 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 635 | *v1 = tmp; |
| 636 | } |
| 637 | |
| 638 | static void vfma64(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, |
| 639 | const S390Vector *v4, CPUS390XState *env, bool s, int flags, |
| 640 | uintptr_t retaddr) |
| 641 | { |
| 642 | uint8_t vxc, vec_exc = 0; |
| 643 | S390Vector tmp = {}; |
| 644 | int i; |
| 645 | |
| 646 | for (i = 0; i < 2; i++) { |
| 647 | const float64 a = s390_vec_read_float64(v3, i); |
| 648 | const float64 b = s390_vec_read_float64(v2, i); |
| 649 | const float64 c = s390_vec_read_float64(v4, i); |
| 650 | const float64 ret = float64_muladd(a, b, c, flags, &env->fpu_status); |
| 651 | |
| 652 | s390_vec_write_float64(&tmp, i, ret); |
| 653 | vxc = check_ieee_exc(env, i, false, &vec_exc); |
| 654 | if (s || vxc) { |
| 655 | break; |
| 656 | } |
| 657 | } |
| 658 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 659 | *v1 = tmp; |
| 660 | } |
| 661 | |
| 662 | static void vfma128(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, |
| 663 | const S390Vector *v4, CPUS390XState *env, bool s, int flags, |
| 664 | uintptr_t retaddr) |
| 665 | { |
| 666 | const float128 a = s390_vec_read_float128(v3); |
| 667 | const float128 b = s390_vec_read_float128(v2); |
| 668 | const float128 c = s390_vec_read_float128(v4); |
| 669 | uint8_t vxc, vec_exc = 0; |
| 670 | float128 ret; |
| 671 | |
| 672 | ret = float128_muladd(a, b, c, flags, &env->fpu_status); |
| 673 | vxc = check_ieee_exc(env, 0, false, &vec_exc); |
| 674 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 675 | s390_vec_write_float128(v1, ret); |
| 676 | } |
| 677 | |
| 678 | #define DEF_GVEC_VFMA_B(NAME, FLAGS, BITS) \ |
| 679 | void HELPER(gvec_##NAME##BITS)(void *v1, const void *v2, const void *v3, \ |
| 680 | const void *v4, CPUS390XState *env, \ |
| 681 | uint32_t desc) \ |
| 682 | { \ |
| 683 | const bool se = extract32(simd_data(desc), 3, 1); \ |
| 684 | \ |
| 685 | vfma##BITS(v1, v2, v3, v4, env, se, FLAGS, GETPC()); \ |
| 686 | } |
| 687 | |
| 688 | #define DEF_GVEC_VFMA(NAME, FLAGS) \ |
| 689 | DEF_GVEC_VFMA_B(NAME, FLAGS, 32) \ |
| 690 | DEF_GVEC_VFMA_B(NAME, FLAGS, 64) \ |
| 691 | DEF_GVEC_VFMA_B(NAME, FLAGS, 128) |
| 692 | |
| 693 | DEF_GVEC_VFMA(vfma, 0) |
| 694 | DEF_GVEC_VFMA(vfms, float_muladd_negate_c) |
| 695 | DEF_GVEC_VFMA(vfnma, float_muladd_negate_result) |
| 696 | DEF_GVEC_VFMA(vfnms, float_muladd_negate_c | float_muladd_negate_result) |
| 697 | |
| 698 | void HELPER(gvec_vftci32)(void *v1, const void *v2, CPUS390XState *env, |
| 699 | uint32_t desc) |
| 700 | { |
| 701 | uint16_t i3 = extract32(simd_data(desc), 4, 12); |
| 702 | bool s = extract32(simd_data(desc), 3, 1); |
| 703 | int i, match = 0; |
| 704 | |
| 705 | for (i = 0; i < 4; i++) { |
| 706 | float32 a = s390_vec_read_float32(v2, i); |
| 707 | |
| 708 | if (float32_dcmask(env, a) & i3) { |
| 709 | match++; |
| 710 | s390_vec_write_element32(v1, i, -1u); |
| 711 | } else { |
| 712 | s390_vec_write_element32(v1, i, 0); |
| 713 | } |
| 714 | if (s) { |
| 715 | break; |
| 716 | } |
| 717 | } |
| 718 | |
| 719 | if (match == 4 || (s && match)) { |
| 720 | env->cc_op = 0; |
| 721 | } else if (match) { |
| 722 | env->cc_op = 1; |
| 723 | } else { |
| 724 | env->cc_op = 3; |
| 725 | } |
| 726 | } |
| 727 | |
| 728 | void HELPER(gvec_vftci64)(void *v1, const void *v2, CPUS390XState *env, |
| 729 | uint32_t desc) |
| 730 | { |
| 731 | const uint16_t i3 = extract32(simd_data(desc), 4, 12); |
| 732 | const bool s = extract32(simd_data(desc), 3, 1); |
| 733 | int i, match = 0; |
| 734 | |
| 735 | for (i = 0; i < 2; i++) { |
| 736 | const float64 a = s390_vec_read_float64(v2, i); |
| 737 | |
| 738 | if (float64_dcmask(env, a) & i3) { |
| 739 | match++; |
| 740 | s390_vec_write_element64(v1, i, -1ull); |
| 741 | } else { |
| 742 | s390_vec_write_element64(v1, i, 0); |
| 743 | } |
| 744 | if (s) { |
| 745 | break; |
| 746 | } |
| 747 | } |
| 748 | |
| 749 | if (match == 2 || (s && match)) { |
| 750 | env->cc_op = 0; |
| 751 | } else if (match) { |
| 752 | env->cc_op = 1; |
| 753 | } else { |
| 754 | env->cc_op = 3; |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | void HELPER(gvec_vftci128)(void *v1, const void *v2, CPUS390XState *env, |
| 759 | uint32_t desc) |
| 760 | { |
| 761 | const float128 a = s390_vec_read_float128(v2); |
| 762 | uint16_t i3 = extract32(simd_data(desc), 4, 12); |
| 763 | |
| 764 | if (float128_dcmask(env, a) & i3) { |
| 765 | env->cc_op = 0; |
| 766 | s390_vec_write_element64(v1, 0, -1ull); |
| 767 | s390_vec_write_element64(v1, 1, -1ull); |
| 768 | } else { |
| 769 | env->cc_op = 3; |
| 770 | s390_vec_write_element64(v1, 0, 0); |
| 771 | s390_vec_write_element64(v1, 1, 0); |
| 772 | } |
| 773 | } |
| 774 | |
| 775 | typedef enum S390MinMaxType { |
| 776 | S390_MINMAX_TYPE_IEEE = 0, |
| 777 | S390_MINMAX_TYPE_JAVA, |
| 778 | S390_MINMAX_TYPE_C_MACRO, |
| 779 | S390_MINMAX_TYPE_CPP, |
| 780 | S390_MINMAX_TYPE_F, |
| 781 | } S390MinMaxType; |
| 782 | |
| 783 | typedef enum S390MinMaxRes { |
| 784 | S390_MINMAX_RES_MINMAX = 0, |
| 785 | S390_MINMAX_RES_A, |
| 786 | S390_MINMAX_RES_B, |
| 787 | S390_MINMAX_RES_SILENCE_A, |
| 788 | S390_MINMAX_RES_SILENCE_B, |
| 789 | } S390MinMaxRes; |
| 790 | |
| 791 | static S390MinMaxRes vfmin_res(uint16_t dcmask_a, uint16_t dcmask_b, |
| 792 | S390MinMaxType type, float_status *s) |
| 793 | { |
| 794 | const bool neg_a = dcmask_a & DCMASK_NEGATIVE; |
| 795 | const bool nan_a = dcmask_a & DCMASK_NAN; |
| 796 | const bool nan_b = dcmask_b & DCMASK_NAN; |
| 797 | |
| 798 | g_assert(type > S390_MINMAX_TYPE_IEEE && type <= S390_MINMAX_TYPE_F); |
| 799 | |
| 800 | if (unlikely((dcmask_a | dcmask_b) & DCMASK_NAN)) { |
| 801 | const bool sig_a = dcmask_a & DCMASK_SIGNALING_NAN; |
| 802 | const bool sig_b = dcmask_b & DCMASK_SIGNALING_NAN; |
| 803 | |
| 804 | if ((dcmask_a | dcmask_b) & DCMASK_SIGNALING_NAN) { |
| 805 | s->float_exception_flags |= float_flag_invalid; |
| 806 | } |
| 807 | switch (type) { |
| 808 | case S390_MINMAX_TYPE_JAVA: |
| 809 | if (sig_a) { |
| 810 | return S390_MINMAX_RES_SILENCE_A; |
| 811 | } else if (sig_b) { |
| 812 | return S390_MINMAX_RES_SILENCE_B; |
| 813 | } |
| 814 | return nan_a ? S390_MINMAX_RES_A : S390_MINMAX_RES_B; |
| 815 | case S390_MINMAX_TYPE_F: |
| 816 | return nan_b ? S390_MINMAX_RES_A : S390_MINMAX_RES_B; |
| 817 | case S390_MINMAX_TYPE_C_MACRO: |
| 818 | s->float_exception_flags |= float_flag_invalid; |
| 819 | return S390_MINMAX_RES_B; |
| 820 | case S390_MINMAX_TYPE_CPP: |
| 821 | s->float_exception_flags |= float_flag_invalid; |
| 822 | return S390_MINMAX_RES_A; |
| 823 | default: |
| 824 | g_assert_not_reached(); |
| 825 | } |
| 826 | } else if (unlikely((dcmask_a & DCMASK_ZERO) && (dcmask_b & DCMASK_ZERO))) { |
| 827 | switch (type) { |
| 828 | case S390_MINMAX_TYPE_JAVA: |
| 829 | return neg_a ? S390_MINMAX_RES_A : S390_MINMAX_RES_B; |
| 830 | case S390_MINMAX_TYPE_C_MACRO: |
| 831 | return S390_MINMAX_RES_B; |
| 832 | case S390_MINMAX_TYPE_F: |
| 833 | return !neg_a ? S390_MINMAX_RES_B : S390_MINMAX_RES_A; |
| 834 | case S390_MINMAX_TYPE_CPP: |
| 835 | return S390_MINMAX_RES_A; |
| 836 | default: |
| 837 | g_assert_not_reached(); |
| 838 | } |
| 839 | } |
| 840 | return S390_MINMAX_RES_MINMAX; |
| 841 | } |
| 842 | |
| 843 | static S390MinMaxRes vfmax_res(uint16_t dcmask_a, uint16_t dcmask_b, |
| 844 | S390MinMaxType type, float_status *s) |
| 845 | { |
| 846 | g_assert(type > S390_MINMAX_TYPE_IEEE && type <= S390_MINMAX_TYPE_F); |
| 847 | |
| 848 | if (unlikely((dcmask_a | dcmask_b) & DCMASK_NAN)) { |
| 849 | const bool sig_a = dcmask_a & DCMASK_SIGNALING_NAN; |
| 850 | const bool sig_b = dcmask_b & DCMASK_SIGNALING_NAN; |
| 851 | const bool nan_a = dcmask_a & DCMASK_NAN; |
| 852 | const bool nan_b = dcmask_b & DCMASK_NAN; |
| 853 | |
| 854 | if ((dcmask_a | dcmask_b) & DCMASK_SIGNALING_NAN) { |
| 855 | s->float_exception_flags |= float_flag_invalid; |
| 856 | } |
| 857 | switch (type) { |
| 858 | case S390_MINMAX_TYPE_JAVA: |
| 859 | if (sig_a) { |
| 860 | return S390_MINMAX_RES_SILENCE_A; |
| 861 | } else if (sig_b) { |
| 862 | return S390_MINMAX_RES_SILENCE_B; |
| 863 | } |
| 864 | return nan_a ? S390_MINMAX_RES_A : S390_MINMAX_RES_B; |
| 865 | case S390_MINMAX_TYPE_F: |
| 866 | return nan_b ? S390_MINMAX_RES_A : S390_MINMAX_RES_B; |
| 867 | case S390_MINMAX_TYPE_C_MACRO: |
| 868 | s->float_exception_flags |= float_flag_invalid; |
| 869 | return S390_MINMAX_RES_B; |
| 870 | case S390_MINMAX_TYPE_CPP: |
| 871 | s->float_exception_flags |= float_flag_invalid; |
| 872 | return S390_MINMAX_RES_A; |
| 873 | default: |
| 874 | g_assert_not_reached(); |
| 875 | } |
| 876 | } else if (unlikely((dcmask_a & DCMASK_ZERO) && (dcmask_b & DCMASK_ZERO))) { |
| 877 | const bool neg_a = dcmask_a & DCMASK_NEGATIVE; |
| 878 | |
| 879 | switch (type) { |
| 880 | case S390_MINMAX_TYPE_JAVA: |
| 881 | case S390_MINMAX_TYPE_F: |
| 882 | return neg_a ? S390_MINMAX_RES_B : S390_MINMAX_RES_A; |
| 883 | case S390_MINMAX_TYPE_C_MACRO: |
| 884 | return S390_MINMAX_RES_B; |
| 885 | case S390_MINMAX_TYPE_CPP: |
| 886 | return S390_MINMAX_RES_A; |
| 887 | default: |
| 888 | g_assert_not_reached(); |
| 889 | } |
| 890 | } |
| 891 | return S390_MINMAX_RES_MINMAX; |
| 892 | } |
| 893 | |
| 894 | static S390MinMaxRes vfminmax_res(uint16_t dcmask_a, uint16_t dcmask_b, |
| 895 | S390MinMaxType type, bool is_min, |
| 896 | float_status *s) |
| 897 | { |
| 898 | return is_min ? vfmin_res(dcmask_a, dcmask_b, type, s) : |
| 899 | vfmax_res(dcmask_a, dcmask_b, type, s); |
| 900 | } |
| 901 | |
| 902 | static void vfminmax32(S390Vector *v1, const S390Vector *v2, |
| 903 | const S390Vector *v3, CPUS390XState *env, |
| 904 | S390MinMaxType type, bool is_min, bool is_abs, bool se, |
| 905 | uintptr_t retaddr) |
| 906 | { |
| 907 | float_status *s = &env->fpu_status; |
| 908 | uint8_t vxc, vec_exc = 0; |
| 909 | S390Vector tmp = {}; |
| 910 | int i; |
| 911 | |
| 912 | for (i = 0; i < 4; i++) { |
| 913 | float32 a = s390_vec_read_float32(v2, i); |
| 914 | float32 b = s390_vec_read_float32(v3, i); |
| 915 | float32 result; |
| 916 | |
| 917 | if (type != S390_MINMAX_TYPE_IEEE) { |
| 918 | S390MinMaxRes res; |
| 919 | |
| 920 | if (is_abs) { |
| 921 | a = float32_abs(a); |
| 922 | b = float32_abs(b); |
| 923 | } |
| 924 | |
| 925 | res = vfminmax_res(float32_dcmask(env, a), float32_dcmask(env, b), |
| 926 | type, is_min, s); |
| 927 | switch (res) { |
| 928 | case S390_MINMAX_RES_MINMAX: |
| 929 | result = is_min ? float32_min(a, b, s) : float32_max(a, b, s); |
| 930 | break; |
| 931 | case S390_MINMAX_RES_A: |
| 932 | result = a; |
| 933 | break; |
| 934 | case S390_MINMAX_RES_B: |
| 935 | result = b; |
| 936 | break; |
| 937 | case S390_MINMAX_RES_SILENCE_A: |
| 938 | result = float32_silence_nan(a, s); |
| 939 | break; |
| 940 | case S390_MINMAX_RES_SILENCE_B: |
| 941 | result = float32_silence_nan(b, s); |
| 942 | break; |
| 943 | default: |
| 944 | g_assert_not_reached(); |
| 945 | } |
| 946 | } else if (!is_abs) { |
| 947 | result = is_min ? float32_minnum(a, b, &env->fpu_status) : |
| 948 | float32_maxnum(a, b, &env->fpu_status); |
| 949 | } else { |
| 950 | result = is_min ? float32_minnummag(a, b, &env->fpu_status) : |
| 951 | float32_maxnummag(a, b, &env->fpu_status); |
| 952 | } |
| 953 | |
| 954 | s390_vec_write_float32(&tmp, i, result); |
| 955 | vxc = check_ieee_exc(env, i, false, &vec_exc); |
| 956 | if (se || vxc) { |
| 957 | break; |
| 958 | } |
| 959 | } |
| 960 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 961 | *v1 = tmp; |
| 962 | } |
| 963 | |
| 964 | static void vfminmax64(S390Vector *v1, const S390Vector *v2, |
| 965 | const S390Vector *v3, CPUS390XState *env, |
| 966 | S390MinMaxType type, bool is_min, bool is_abs, bool se, |
| 967 | uintptr_t retaddr) |
| 968 | { |
| 969 | float_status *s = &env->fpu_status; |
| 970 | uint8_t vxc, vec_exc = 0; |
| 971 | S390Vector tmp = {}; |
| 972 | int i; |
| 973 | |
| 974 | for (i = 0; i < 2; i++) { |
| 975 | float64 a = s390_vec_read_float64(v2, i); |
| 976 | float64 b = s390_vec_read_float64(v3, i); |
| 977 | float64 result; |
| 978 | |
| 979 | if (type != S390_MINMAX_TYPE_IEEE) { |
| 980 | S390MinMaxRes res; |
| 981 | |
| 982 | if (is_abs) { |
| 983 | a = float64_abs(a); |
| 984 | b = float64_abs(b); |
| 985 | } |
| 986 | |
| 987 | res = vfminmax_res(float64_dcmask(env, a), float64_dcmask(env, b), |
| 988 | type, is_min, s); |
| 989 | switch (res) { |
| 990 | case S390_MINMAX_RES_MINMAX: |
| 991 | result = is_min ? float64_min(a, b, s) : float64_max(a, b, s); |
| 992 | break; |
| 993 | case S390_MINMAX_RES_A: |
| 994 | result = a; |
| 995 | break; |
| 996 | case S390_MINMAX_RES_B: |
| 997 | result = b; |
| 998 | break; |
| 999 | case S390_MINMAX_RES_SILENCE_A: |
| 1000 | result = float64_silence_nan(a, s); |
| 1001 | break; |
| 1002 | case S390_MINMAX_RES_SILENCE_B: |
| 1003 | result = float64_silence_nan(b, s); |
| 1004 | break; |
| 1005 | default: |
| 1006 | g_assert_not_reached(); |
| 1007 | } |
| 1008 | } else if (!is_abs) { |
| 1009 | result = is_min ? float64_minnum(a, b, &env->fpu_status) : |
| 1010 | float64_maxnum(a, b, &env->fpu_status); |
| 1011 | } else { |
| 1012 | result = is_min ? float64_minnummag(a, b, &env->fpu_status) : |
| 1013 | float64_maxnummag(a, b, &env->fpu_status); |
| 1014 | } |
| 1015 | |
| 1016 | s390_vec_write_float64(&tmp, i, result); |
| 1017 | vxc = check_ieee_exc(env, i, false, &vec_exc); |
| 1018 | if (se || vxc) { |
| 1019 | break; |
| 1020 | } |
| 1021 | } |
| 1022 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 1023 | *v1 = tmp; |
| 1024 | } |
| 1025 | |
| 1026 | static void vfminmax128(S390Vector *v1, const S390Vector *v2, |
| 1027 | const S390Vector *v3, CPUS390XState *env, |
| 1028 | S390MinMaxType type, bool is_min, bool is_abs, bool se, |
| 1029 | uintptr_t retaddr) |
| 1030 | { |
| 1031 | float128 a = s390_vec_read_float128(v2); |
| 1032 | float128 b = s390_vec_read_float128(v3); |
| 1033 | float_status *s = &env->fpu_status; |
| 1034 | uint8_t vxc, vec_exc = 0; |
| 1035 | float128 result; |
| 1036 | |
| 1037 | if (type != S390_MINMAX_TYPE_IEEE) { |
| 1038 | S390MinMaxRes res; |
| 1039 | |
| 1040 | if (is_abs) { |
| 1041 | a = float128_abs(a); |
| 1042 | b = float128_abs(b); |
| 1043 | } |
| 1044 | |
| 1045 | res = vfminmax_res(float128_dcmask(env, a), float128_dcmask(env, b), |
| 1046 | type, is_min, s); |
| 1047 | switch (res) { |
| 1048 | case S390_MINMAX_RES_MINMAX: |
| 1049 | result = is_min ? float128_min(a, b, s) : float128_max(a, b, s); |
| 1050 | break; |
| 1051 | case S390_MINMAX_RES_A: |
| 1052 | result = a; |
| 1053 | break; |
| 1054 | case S390_MINMAX_RES_B: |
| 1055 | result = b; |
| 1056 | break; |
| 1057 | case S390_MINMAX_RES_SILENCE_A: |
| 1058 | result = float128_silence_nan(a, s); |
| 1059 | break; |
| 1060 | case S390_MINMAX_RES_SILENCE_B: |
| 1061 | result = float128_silence_nan(b, s); |
| 1062 | break; |
| 1063 | default: |
| 1064 | g_assert_not_reached(); |
| 1065 | } |
| 1066 | } else if (!is_abs) { |
| 1067 | result = is_min ? float128_minnum(a, b, &env->fpu_status) : |
| 1068 | float128_maxnum(a, b, &env->fpu_status); |
| 1069 | } else { |
| 1070 | result = is_min ? float128_minnummag(a, b, &env->fpu_status) : |
| 1071 | float128_maxnummag(a, b, &env->fpu_status); |
| 1072 | } |
| 1073 | |
| 1074 | vxc = check_ieee_exc(env, 0, false, &vec_exc); |
| 1075 | handle_ieee_exc(env, vxc, vec_exc, retaddr); |
| 1076 | s390_vec_write_float128(v1, result); |
| 1077 | } |
| 1078 | |
| 1079 | #define DEF_GVEC_VFMINMAX_B(NAME, IS_MIN, BITS) \ |
| 1080 | void HELPER(gvec_##NAME##BITS)(void *v1, const void *v2, const void *v3, \ |
| 1081 | CPUS390XState *env, uint32_t desc) \ |
| 1082 | { \ |
| 1083 | const bool se = extract32(simd_data(desc), 3, 1); \ |
| 1084 | uint8_t type = extract32(simd_data(desc), 4, 4); \ |
| 1085 | bool is_abs = false; \ |
| 1086 | \ |
| 1087 | if (type >= 8) { \ |
| 1088 | is_abs = true; \ |
| 1089 | type -= 8; \ |
| 1090 | } \ |
| 1091 | \ |
| 1092 | vfminmax##BITS(v1, v2, v3, env, type, IS_MIN, is_abs, se, GETPC()); \ |
| 1093 | } |
| 1094 | |
| 1095 | #define DEF_GVEC_VFMINMAX(NAME, IS_MIN) \ |
| 1096 | DEF_GVEC_VFMINMAX_B(NAME, IS_MIN, 32) \ |
| 1097 | DEF_GVEC_VFMINMAX_B(NAME, IS_MIN, 64) \ |
| 1098 | DEF_GVEC_VFMINMAX_B(NAME, IS_MIN, 128) |
| 1099 | |
| 1100 | DEF_GVEC_VFMINMAX(vfmax, false) |
| 1101 | DEF_GVEC_VFMINMAX(vfmin, true) |