annotate slides/2018/06/05/zip.txt @ 47:32e35be2ce71

auto-Update generated slides by script
author Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
date Tue, 26 Jun 2018 22:41:26 +0900
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children
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47
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
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1 2018-05-29----
32e35be2ce71 auto-Update generated slides by script
Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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2 ❯ lldb -- /Users/anatofuz/workspace/cr/Basic/build_perl6/bin/moar nqp.moarvm examples/hello_world.nqp [13:52:54]
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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3 (lldb) target create "/Users/anatofuz/workspace/cr/Basic/build_perl6/bin/moar"
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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4 Current executable set to '/Users/anatofuz/workspace/cr/Basic/build_perl6/bin/moar' (x86_64).
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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5 (lldb) settings set -- target.run-args "nqp.moarvm" "examples/hello_world.nqp"
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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6 (lldb) b add_bb_facts
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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7 Breakpoint 1: where = libmoar.dylib`add_bb_facts + 32 at facts.c:362, address = 0x0000000000118540
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8 (lldb) c
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9 error: invalid process
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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10 (lldb) run
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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11 Process 8479 launched: '/Users/anatofuz/workspace/cr/Basic/build_perl6/bin/moar' (x86_64)
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12 Process 8479 stopped
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13 * thread #2, stop reason = breakpoint 1.1
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
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14 frame #0: 0x00000001001bb540 libmoar.dylib`add_bb_facts(tc=0x0000000100802e30, g=0x0000000100f4efe0, bb=0x0000000102115e00, p=0x0000000100f514d0, cur_deopt_idx=-1) at facts.c:362
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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15 359 MVMint32 i, is_phi;
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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16 360
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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17 361 /* Look for instructions that provide or propagate facts. */
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18 -> 362 MVMSpeshIns *ins = bb->first_ins;
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19 363 while (ins) {
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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20 364 /* See if there's deopt and logged annotations. Sync cur_deopt_idx
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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21 365 * and, for logged+deopt-one, add logged facts and guards. */
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22 Target 0: (moar) stopped.
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23 (lldb) bt
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24 * thread #2, stop reason = breakpoint 1.1
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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25 * frame #0: 0x00000001001bb540 libmoar.dylib`add_bb_facts(tc=0x0000000100802e30, g=0x0000000100f4efe0, bb=0x0000000102115e00, p=0x0000000100f514d0, cur_deopt_idx=-1) at facts.c:362
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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26 frame #1: 0x00000001001bb503 libmoar.dylib`MVM_spesh_facts_discover(tc=0x0000000100802e30, g=0x0000000100f4efe0, p=0x0000000100f514d0) at facts.c:659
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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27 frame #2: 0x00000001001b4eb7 libmoar.dylib`MVM_spesh_candidate_add(tc=0x0000000100802e30, p=0x0000000100f514d0) at candidate.c:61
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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28 frame #3: 0x00000001001cf991 libmoar.dylib`worker(tc=0x0000000100802e30, callsite=0x00000001006c9150, args=0x0000000000000000) at worker.c:16
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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29 frame #4: 0x000000010014e8e2 libmoar.dylib`invoke_handler(tc=0x0000000100802e30, invokee=0x0000000102014840, callsite=0x00000001006c9150, args=0x0000000000000000) at MVMCFunction.c:9
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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30 frame #5: 0x00000001000e8494 libmoar.dylib`thread_initial_invoke(tc=0x0000000100802e30, data=0x0000000100802050) at threads.c:59
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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31 frame #6: 0x00000001000aefee libmoar.dylib`MVM_interp_run(tc=0x0000000100802e30, initial_invoke=(libmoar.dylib`thread_initial_invoke at threads.c:50), invoke_data=0x0000000100802050) at interp.c:93
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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32 frame #7: 0x00000001000e7a35 libmoar.dylib`start_thread(data=0x0000000100802050) at threads.c:87
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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33 frame #8: 0x00007fff7b9fe661 libsystem_pthread.dylib`_pthread_body + 340
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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34 frame #9: 0x00007fff7b9fe50d libsystem_pthread.dylib`_pthread_start + 377
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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35 frame #10: 0x00007fff7b9fdbf9 libsystem_pthread.dylib`thread_start + 13
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36
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37 (lldb) n
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38 Process 8479 stopped
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39 * thread #2, stop reason = step over
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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40 frame #0: 0x00000001001bb579 libmoar.dylib`add_bb_facts(tc=0x0000000100802e30, g=0x0000000100f4efe0, bb=0x0000000102115e00, p=0x0000000100f514d0, cur_deopt_idx=-1) at facts.c:370
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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41 367 MVMSpeshAnn *ann_deopt_one = NULL;
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42 368 MVMSpeshAnn *ann_logged = NULL;
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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43 369 MVMint32 is_deopt_ins = 0;
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44 -> 370 while (ann) {
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45 371 switch (ann->type) {
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46 372 case MVM_SPESH_ANN_DEOPT_ONE_INS:
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47 373 ann_deopt_one = ann;
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48 Target 0: (moar) stopped.
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49 (lldb)
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50 Process 8479 stopped
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51 * thread #2, stop reason = step over
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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52 frame #0: 0x00000001001bb620 libmoar.dylib`add_bb_facts(tc=0x0000000100802e30, g=0x0000000100f4efe0, bb=0x0000000102115e00, p=0x0000000100f514d0, cur_deopt_idx=-1) at facts.c:385
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53 382 }
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54 383 ann = ann->next;
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55 384 }
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56 -> 385 if (ann_deopt_one && ann_logged)
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57 386 log_facts(tc, g, bb, ins, p, ann_deopt_one, ann_logged);
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58 387
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59 388 /* Look through operands for reads and writes. */
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60 Target 0: (moar) stopped.
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61 (lldb) l
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62 389 is_phi = ins->info->opcode == MVM_SSA_PHI;
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63 390 for (i = 0; i < ins->info->num_operands; i++) {
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64 391 /* Reads need usage tracking; if the read is after a deopt point
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65 392 * relative to the write then give it an extra usage bump. */
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66 393 if ((is_phi && i > 0)
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67 394 || (!is_phi && (ins->info->operands[i] & MVM_operand_rw_mask) == MVM_operand_read_reg)) {
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68 395 MVMSpeshFacts *facts = &(g->facts[ins->operands[i].reg.orig][ins->operands[i].reg.i]);
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69 (lldb) l
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70 396 facts->usages += facts->deopt_idx == cur_deopt_idx ? 1 : 2;
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71 397 }
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72 398
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73 399 /* Writes need the current deopt index and the writing instruction
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74 400 * to be specified. A write that's on a deopt instruction bumps
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75 401 * the usage too. */
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76 402 if ((is_phi && i == 0)
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77 (lldb) n
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78 Process 8479 stopped
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79 * thread #2, stop reason = step over
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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80 frame #0: 0x00000001001bb65b libmoar.dylib`add_bb_facts(tc=0x0000000100802e30, g=0x0000000100f4efe0, bb=0x0000000102115e00, p=0x0000000100f514d0, cur_deopt_idx=-1) at facts.c:389
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81 386 log_facts(tc, g, bb, ins, p, ann_deopt_one, ann_logged);
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82 387
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83 388 /* Look through operands for reads and writes. */
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84 -> 389 is_phi = ins->info->opcode == MVM_SSA_PHI;
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85 390 for (i = 0; i < ins->info->num_operands; i++) {
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86 391 /* Reads need usage tracking; if the read is after a deopt point
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87 392 * relative to the write then give it an extra usage bump. */
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88 Target 0: (moar) stopped.
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89 (lldb) p MVM_SSA_PHI
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90 error: use of undeclared identifier 'MVM_SSA_PHI'
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91 (lldb) nexr
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92 error: 'nexr' is not a valid command.
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93 error: Unrecognized command 'nexr'.
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94 (lldb) n
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95 Process 8479 stopped
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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96 * thread #2, stop reason = step over
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
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97 frame #0: 0x00000001001bb677 libmoar.dylib`add_bb_facts(tc=0x0000000100802e30, g=0x0000000100f4efe0, bb=0x0000000102115e00, p=0x0000000100f514d0, cur_deopt_idx=-1) at facts.c:390
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98 387
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99 388 /* Look through operands for reads and writes. */
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
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100 389 is_phi = ins->info->opcode == MVM_SSA_PHI;
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101 -> 390 for (i = 0; i < ins->info->num_operands; i++) {
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parents:
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102 391 /* Reads need usage tracking; if the read is after a deopt point
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103 392 * relative to the write then give it an extra usage bump. */
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
104 393 if ((is_phi && i > 0)
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
105 Target 0: (moar) stopped.
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
106 (lldb) p is_phi
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
107 (MVMint32) $14 = 0
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
108 (lldb) p ins
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
109 (MVMSpeshIns *) $15 = 0x0000000102115e60
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
110 (lldb) p *ins
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
111 (MVMSpeshIns) $16 = {
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
112 info = 0x00000001005757c0
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
113 operands = 0x0000000000000000
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
114 prev = 0x0000000000000000
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
115 next = 0x0000000000000000
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
116 annotations = 0x0000000000000000
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
117 }
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
118 (lldb) p *ins->info
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
119 (MVMOpInfo) $17 = {
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
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120 opcode = 0
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
121 name = 0x00000001002def92 "no_op"
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
122 mark = {
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
123 [0] = ' '
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
124 [1] = ' '
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
125 }
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
126 num_operands = 0
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
127 pure = '\0'
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
128 deopt_point = '\0'
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
129 logged = '\0'
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
130 no_inline = '\0'
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
131 jittivity = '\0'
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
132 uses_hll = '\0'
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
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133 operands = ([0] = '\0', [1] = '\0', [2] = '\0', [3] = '\0', [4] = '\0', [5] = '\0', [6] = '\0', [7] = '\0')
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
134 }
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
135
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
136
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
137 * profilingの箇所を見ていく
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
138
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
139 * perlスクリプトをperl6に移植する
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
140 * markdownのparserみたいなのを書き換えてみるなど
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
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141 * タイトループを早くするのか,ここのハッシュを早くするのか,オブジェクトのオペレーションを早くするのか…
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
142 * 手近な場所をとにかく見ていきたい
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
143
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
144 * native codeをやるのかvmをやるのか
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
145
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
146 * bytecode interpureter, gc関連を書き直すという手もある
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
147
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
148 * gcc vs clang
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
149
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
150 * llvm側でtail coll呼び出す時はフラグを見ている
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
151 * code grarであるというフラグを渡している感じ
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
152
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
153 * script言語--> 上手く並列化出来ない
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
154
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
155 * targetとしてCbCのコードを吐く
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
156 * 継続コード(meta level)
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
157 * 継続コードを見て計算結果を見て変えていく
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
158 * MoarVMのJIT,nqpのコンパイラにcbcを生成する部分を入れる
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
159 * perlccみたいなものをいれる
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
160 * targetのアプリケーション...whileでstring matchをする部分を最適化する
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
161
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
162 * 正規表現の箇所をターゲットとして書くのも手…!?
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
163 * fileをmmapを使うかどうかなど
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
164 * 並列のgrep
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
165 * 早くなるには早くなる
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
166 * cache prefetchの処理でも高速化出来る
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
167
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
168
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
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169 ----------
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
170 2018-06-05----
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
171 MoarVMが実際にインタプリタとして走っているのはMVM_interp_runという関数らしい.
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
172 これはスレッド毎に用意されるらしい
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
173
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
174 定義自体は `src/core/interp.c`に書かれている
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
175
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
176 MVMInstancとかいう構造体に全ての情報が入っている
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
177
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
178 MVM_cu_map_from_fileでスレッド情報とファイルから生成した結果をMVMCompUnit構造体として生成している
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
179
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
180 DISPATCHでNEXT_OPを判断している,これはオペランドリストとswitch文が同じオーダーで書かれているので
32e35be2ce71 auto-Update generated slides by script
Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
181 最適化しやすいらしい
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
182
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
183 MVM_interp_runの後DISPATCHというマクロでNEXT_OPというマクロに応じて処理を行っているが
32e35be2ce71 auto-Update generated slides by script
Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
184 これがMoarVMのバイトコードを一対一対応しているので5000行のcase文が生成されている
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
185
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
186
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Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents:
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187 ----------