Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/macroAssembler_x86.cpp
src/cpu/x86/vm/macroAssembler_x86.cpp
- changeset 7025
- b1bc1af04c6e
- parent 6723
- 0bf37f737702
- child 7152
- 166d744df0de
equal
deleted
inserted
replaced
| 7024:bfba6779654b | 7025:b1bc1af04c6e |
|---|---|
| 7314 | 7314 |
| 7315 /** | 7315 /** |
| 7316 * Fold 128-bit data chunk | 7316 * Fold 128-bit data chunk |
| 7317 */ | 7317 */ |
| 7318 void MacroAssembler::fold_128bit_crc32(XMMRegister xcrc, XMMRegister xK, XMMRegister xtmp, Register buf, int offset) { | 7318 void MacroAssembler::fold_128bit_crc32(XMMRegister xcrc, XMMRegister xK, XMMRegister xtmp, Register buf, int offset) { |
| 7319 vpclmulhdq(xtmp, xK, xcrc); // [123:64] | 7319 if (UseAVX > 0) { |
| 7320 vpclmulldq(xcrc, xK, xcrc); // [63:0] | 7320 vpclmulhdq(xtmp, xK, xcrc); // [123:64] |
| 7321 vpxor(xcrc, xcrc, Address(buf, offset), false /* vector256 */); | 7321 vpclmulldq(xcrc, xK, xcrc); // [63:0] |
| 7322 pxor(xcrc, xtmp); | 7322 vpxor(xcrc, xcrc, Address(buf, offset), false /* vector256 */); |
| 7323 pxor(xcrc, xtmp); | |
| 7324 } else { | |
| 7325 movdqa(xtmp, xcrc); | |
| 7326 pclmulhdq(xtmp, xK); // [123:64] | |
| 7327 pclmulldq(xcrc, xK); // [63:0] | |
| 7328 pxor(xcrc, xtmp); | |
| 7329 movdqu(xtmp, Address(buf, offset)); | |
| 7330 pxor(xcrc, xtmp); | |
| 7331 } | |
| 7323 } | 7332 } |
| 7324 | 7333 |
| 7325 void MacroAssembler::fold_128bit_crc32(XMMRegister xcrc, XMMRegister xK, XMMRegister xtmp, XMMRegister xbuf) { | 7334 void MacroAssembler::fold_128bit_crc32(XMMRegister xcrc, XMMRegister xK, XMMRegister xtmp, XMMRegister xbuf) { |
| 7326 vpclmulhdq(xtmp, xK, xcrc); | 7335 if (UseAVX > 0) { |
| 7327 vpclmulldq(xcrc, xK, xcrc); | 7336 vpclmulhdq(xtmp, xK, xcrc); |
| 7328 pxor(xcrc, xbuf); | 7337 vpclmulldq(xcrc, xK, xcrc); |
| 7329 pxor(xcrc, xtmp); | 7338 pxor(xcrc, xbuf); |
| 7339 pxor(xcrc, xtmp); | |
| 7340 } else { | |
| 7341 movdqa(xtmp, xcrc); | |
| 7342 pclmulhdq(xtmp, xK); | |
| 7343 pclmulldq(xcrc, xK); | |
| 7344 pxor(xcrc, xbuf); | |
| 7345 pxor(xcrc, xtmp); | |
| 7346 } | |
| 7330 } | 7347 } |
| 7331 | 7348 |
| 7332 /** | 7349 /** |
| 7333 * 8-bit folds to compute 32-bit CRC | 7350 * 8-bit folds to compute 32-bit CRC |
| 7334 * | 7351 * |
| 7442 jccb(Assembler::greater, L_fold_tail_loop); | 7459 jccb(Assembler::greater, L_fold_tail_loop); |
| 7443 | 7460 |
| 7444 // Fold 128 bits in xmm1 down into 32 bits in crc register. | 7461 // Fold 128 bits in xmm1 down into 32 bits in crc register. |
| 7445 BIND(L_fold_128b); | 7462 BIND(L_fold_128b); |
| 7446 movdqu(xmm0, ExternalAddress(StubRoutines::x86::crc_by128_masks_addr())); | 7463 movdqu(xmm0, ExternalAddress(StubRoutines::x86::crc_by128_masks_addr())); |
| 7447 vpclmulqdq(xmm2, xmm0, xmm1, 0x1); | 7464 if (UseAVX > 0) { |
| 7448 vpand(xmm3, xmm0, xmm2, false /* vector256 */); | 7465 vpclmulqdq(xmm2, xmm0, xmm1, 0x1); |
| 7449 vpclmulqdq(xmm0, xmm0, xmm3, 0x1); | 7466 vpand(xmm3, xmm0, xmm2, false /* vector256 */); |
| 7467 vpclmulqdq(xmm0, xmm0, xmm3, 0x1); | |
| 7468 } else { | |
| 7469 movdqa(xmm2, xmm0); | |
| 7470 pclmulqdq(xmm2, xmm1, 0x1); | |
| 7471 movdqa(xmm3, xmm0); | |
| 7472 pand(xmm3, xmm2); | |
| 7473 pclmulqdq(xmm0, xmm3, 0x1); | |
| 7474 } | |
| 7450 psrldq(xmm1, 8); | 7475 psrldq(xmm1, 8); |
| 7451 psrldq(xmm2, 4); | 7476 psrldq(xmm2, 4); |
| 7452 pxor(xmm0, xmm1); | 7477 pxor(xmm0, xmm1); |
| 7453 pxor(xmm0, xmm2); | 7478 pxor(xmm0, xmm2); |
| 7454 | 7479 |
