frontend.cc revision 35ba7f3a78d38885ec54e61ed060d2771eeceea7 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "compiler.h"
18#include "compiler_internals.h"
19#include "driver/compiler_driver.h"
20#include "driver/compiler_options.h"
21#include "dataflow_iterator-inl.h"
22#include "leb128.h"
23#include "mirror/object.h"
24#include "pass_driver_me_opts.h"
25#include "runtime.h"
26#include "base/logging.h"
27#include "base/timing_logger.h"
28#include "driver/compiler_options.h"
29#include "dex/quick/dex_file_to_method_inliner_map.h"
30
31namespace art {
32
33extern "C" void ArtInitQuickCompilerContext(art::CompilerDriver* driver) {
34  CHECK(driver->GetCompilerContext() == nullptr);
35}
36
37extern "C" void ArtUnInitQuickCompilerContext(art::CompilerDriver* driver) {
38  CHECK(driver->GetCompilerContext() == nullptr);
39}
40
41/* Default optimizer/debug setting for the compiler. */
42static uint32_t kCompilerOptimizerDisableFlags = 0 |  // Disable specific optimizations
43  (1 << kLoadStoreElimination) |  // TODO: this pass has been broken for awhile - fix or delete.
44  // (1 << kLoadHoisting) |
45  // (1 << kSuppressLoads) |
46  // (1 << kNullCheckElimination) |
47  // (1 << kClassInitCheckElimination) |
48  // (1 << kPromoteRegs) |
49  // (1 << kTrackLiveTemps) |
50  // (1 << kSafeOptimizations) |
51  // (1 << kBBOpt) |
52  // (1 << kMatch) |
53  // (1 << kPromoteCompilerTemps) |
54  // (1 << kSuppressExceptionEdges) |
55  // (1 << kSuppressMethodInlining) |
56  0;
57
58static uint32_t kCompilerDebugFlags = 0 |     // Enable debug/testing modes
59  // (1 << kDebugDisplayMissingTargets) |
60  // (1 << kDebugVerbose) |
61  // (1 << kDebugDumpCFG) |
62  // (1 << kDebugSlowFieldPath) |
63  // (1 << kDebugSlowInvokePath) |
64  // (1 << kDebugSlowStringPath) |
65  // (1 << kDebugSlowestFieldPath) |
66  // (1 << kDebugSlowestStringPath) |
67  // (1 << kDebugExerciseResolveMethod) |
68  // (1 << kDebugVerifyDataflow) |
69  // (1 << kDebugShowMemoryUsage) |
70  // (1 << kDebugShowNops) |
71  // (1 << kDebugCountOpcodes) |
72  // (1 << kDebugDumpCheckStats) |
73  // (1 << kDebugDumpBitcodeFile) |
74  // (1 << kDebugVerifyBitcode) |
75  // (1 << kDebugShowSummaryMemoryUsage) |
76  // (1 << kDebugShowFilterStats) |
77  // (1 << kDebugTimings) |
78  // (1 << kDebugCodegenDump) |
79  0;
80
81CompilationUnit::CompilationUnit(ArenaPool* pool)
82  : compiler_driver(nullptr),
83    class_linker(nullptr),
84    dex_file(nullptr),
85    class_loader(nullptr),
86    class_def_idx(0),
87    method_idx(0),
88    code_item(nullptr),
89    access_flags(0),
90    invoke_type(kDirect),
91    shorty(nullptr),
92    disable_opt(0),
93    enable_debug(0),
94    verbose(false),
95    compiler(nullptr),
96    instruction_set(kNone),
97    target64(false),
98    num_dalvik_registers(0),
99    insns(nullptr),
100    num_ins(0),
101    num_outs(0),
102    num_regs(0),
103    compiler_flip_match(false),
104    arena(pool),
105    arena_stack(pool),
106    mir_graph(nullptr),
107    cg(nullptr),
108    timings("QuickCompiler", true, false),
109    print_pass(false) {
110}
111
112CompilationUnit::~CompilationUnit() {
113}
114
115void CompilationUnit::StartTimingSplit(const char* label) {
116  if (compiler_driver->GetDumpPasses()) {
117    timings.StartSplit(label);
118  }
119}
120
121void CompilationUnit::NewTimingSplit(const char* label) {
122  if (compiler_driver->GetDumpPasses()) {
123    timings.NewSplit(label);
124  }
125}
126
127void CompilationUnit::EndTiming() {
128  if (compiler_driver->GetDumpPasses()) {
129    timings.EndSplit();
130    if (enable_debug & (1 << kDebugTimings)) {
131      LOG(INFO) << "TIMINGS " << PrettyMethod(method_idx, *dex_file);
132      LOG(INFO) << Dumpable<TimingLogger>(timings);
133    }
134  }
135}
136
137// TODO: Remove this when we are able to compile everything.
138int arm64_support_list[] = {
139    Instruction::NOP,
140    Instruction::MOVE,
141    Instruction::MOVE_FROM16,
142    Instruction::MOVE_16,
143    Instruction::MOVE_WIDE,
144    Instruction::MOVE_WIDE_FROM16,
145    Instruction::MOVE_WIDE_16,
146    Instruction::MOVE_OBJECT,
147    Instruction::MOVE_OBJECT_FROM16,
148    Instruction::MOVE_OBJECT_16,
149    // Instruction::MOVE_RESULT,
150    // Instruction::MOVE_RESULT_WIDE,
151    // Instruction::MOVE_RESULT_OBJECT,
152    Instruction::MOVE_EXCEPTION,
153    Instruction::RETURN_VOID,
154    Instruction::RETURN,
155    Instruction::RETURN_WIDE,
156    // Instruction::RETURN_OBJECT,
157    // Instruction::CONST_4,
158    // Instruction::CONST_16,
159    // Instruction::CONST,
160    // Instruction::CONST_HIGH16,
161    // Instruction::CONST_WIDE_16,
162    // Instruction::CONST_WIDE_32,
163    // Instruction::CONST_WIDE,
164    // Instruction::CONST_WIDE_HIGH16,
165    // Instruction::CONST_STRING,
166    // Instruction::CONST_STRING_JUMBO,
167    // Instruction::CONST_CLASS,
168    Instruction::MONITOR_ENTER,
169    Instruction::MONITOR_EXIT,
170    // Instruction::CHECK_CAST,
171    // Instruction::INSTANCE_OF,
172    // Instruction::ARRAY_LENGTH,
173    // Instruction::NEW_INSTANCE,
174    // Instruction::NEW_ARRAY,
175    // Instruction::FILLED_NEW_ARRAY,
176    // Instruction::FILLED_NEW_ARRAY_RANGE,
177    // Instruction::FILL_ARRAY_DATA,
178    Instruction::THROW,
179    // Instruction::GOTO,
180    // Instruction::GOTO_16,
181    // Instruction::GOTO_32,
182    // Instruction::PACKED_SWITCH,
183    // Instruction::SPARSE_SWITCH,
184    Instruction::CMPL_FLOAT,
185    Instruction::CMPG_FLOAT,
186    Instruction::CMPL_DOUBLE,
187    Instruction::CMPG_DOUBLE,
188    Instruction::CMP_LONG,
189    // Instruction::IF_EQ,
190    // Instruction::IF_NE,
191    // Instruction::IF_LT,
192    // Instruction::IF_GE,
193    // Instruction::IF_GT,
194    // Instruction::IF_LE,
195    // Instruction::IF_EQZ,
196    // Instruction::IF_NEZ,
197    // Instruction::IF_LTZ,
198    // Instruction::IF_GEZ,
199    // Instruction::IF_GTZ,
200    // Instruction::IF_LEZ,
201    // Instruction::UNUSED_3E,
202    // Instruction::UNUSED_3F,
203    // Instruction::UNUSED_40,
204    // Instruction::UNUSED_41,
205    // Instruction::UNUSED_42,
206    // Instruction::UNUSED_43,
207    // Instruction::AGET,
208    // Instruction::AGET_WIDE,
209    // Instruction::AGET_OBJECT,
210    // Instruction::AGET_BOOLEAN,
211    // Instruction::AGET_BYTE,
212    // Instruction::AGET_CHAR,
213    // Instruction::AGET_SHORT,
214    // Instruction::APUT,
215    // Instruction::APUT_WIDE,
216    // Instruction::APUT_OBJECT,
217    // Instruction::APUT_BOOLEAN,
218    // Instruction::APUT_BYTE,
219    // Instruction::APUT_CHAR,
220    // Instruction::APUT_SHORT,
221    // Instruction::IGET,
222    // Instruction::IGET_WIDE,
223    // Instruction::IGET_OBJECT,
224    // Instruction::IGET_BOOLEAN,
225    // Instruction::IGET_BYTE,
226    // Instruction::IGET_CHAR,
227    // Instruction::IGET_SHORT,
228    // Instruction::IPUT,
229    // Instruction::IPUT_WIDE,
230    // Instruction::IPUT_OBJECT,
231    // Instruction::IPUT_BOOLEAN,
232    // Instruction::IPUT_BYTE,
233    // Instruction::IPUT_CHAR,
234    // Instruction::IPUT_SHORT,
235    Instruction::SGET,
236    // Instruction::SGET_WIDE,
237    Instruction::SGET_OBJECT,
238    // Instruction::SGET_BOOLEAN,
239    // Instruction::SGET_BYTE,
240    // Instruction::SGET_CHAR,
241    // Instruction::SGET_SHORT,
242    Instruction::SPUT,
243    // Instruction::SPUT_WIDE,
244    // Instruction::SPUT_OBJECT,
245    // Instruction::SPUT_BOOLEAN,
246    // Instruction::SPUT_BYTE,
247    // Instruction::SPUT_CHAR,
248    // Instruction::SPUT_SHORT,
249    Instruction::INVOKE_VIRTUAL,
250    Instruction::INVOKE_SUPER,
251    Instruction::INVOKE_DIRECT,
252    Instruction::INVOKE_STATIC,
253    Instruction::INVOKE_INTERFACE,
254    // Instruction::RETURN_VOID_BARRIER,
255    // Instruction::INVOKE_VIRTUAL_RANGE,
256    // Instruction::INVOKE_SUPER_RANGE,
257    // Instruction::INVOKE_DIRECT_RANGE,
258    // Instruction::INVOKE_STATIC_RANGE,
259    // Instruction::INVOKE_INTERFACE_RANGE,
260    // Instruction::UNUSED_79,
261    // Instruction::UNUSED_7A,
262    Instruction::NEG_INT,
263    Instruction::NOT_INT,
264    Instruction::NEG_LONG,
265    Instruction::NOT_LONG,
266    Instruction::NEG_FLOAT,
267    Instruction::NEG_DOUBLE,
268    Instruction::INT_TO_LONG,
269    Instruction::INT_TO_FLOAT,
270    Instruction::INT_TO_DOUBLE,
271    Instruction::LONG_TO_INT,
272    Instruction::LONG_TO_FLOAT,
273    Instruction::LONG_TO_DOUBLE,
274    Instruction::FLOAT_TO_INT,
275    Instruction::FLOAT_TO_LONG,
276    Instruction::FLOAT_TO_DOUBLE,
277    Instruction::DOUBLE_TO_INT,
278    Instruction::DOUBLE_TO_LONG,
279    Instruction::DOUBLE_TO_FLOAT,
280    Instruction::INT_TO_BYTE,
281    Instruction::INT_TO_CHAR,
282    Instruction::INT_TO_SHORT,
283    Instruction::ADD_INT,
284    Instruction::SUB_INT,
285    Instruction::MUL_INT,
286    Instruction::DIV_INT,
287    Instruction::REM_INT,
288    Instruction::AND_INT,
289    Instruction::OR_INT,
290    Instruction::XOR_INT,
291    Instruction::SHL_INT,
292    Instruction::SHR_INT,
293    Instruction::USHR_INT,
294    Instruction::ADD_LONG,
295    Instruction::SUB_LONG,
296    Instruction::MUL_LONG,
297    Instruction::DIV_LONG,
298    Instruction::REM_LONG,
299    Instruction::AND_LONG,
300    Instruction::OR_LONG,
301    Instruction::XOR_LONG,
302    Instruction::SHL_LONG,
303    Instruction::SHR_LONG,
304    Instruction::USHR_LONG,
305    Instruction::ADD_FLOAT,
306    Instruction::SUB_FLOAT,
307    Instruction::MUL_FLOAT,
308    Instruction::DIV_FLOAT,
309    // Instruction::REM_FLOAT,
310    Instruction::ADD_DOUBLE,
311    Instruction::SUB_DOUBLE,
312    Instruction::MUL_DOUBLE,
313    Instruction::DIV_DOUBLE,
314    // Instruction::REM_DOUBLE,
315    Instruction::ADD_INT_2ADDR,
316    Instruction::SUB_INT_2ADDR,
317    Instruction::MUL_INT_2ADDR,
318    Instruction::DIV_INT_2ADDR,
319    Instruction::REM_INT_2ADDR,
320    Instruction::AND_INT_2ADDR,
321    Instruction::OR_INT_2ADDR,
322    Instruction::XOR_INT_2ADDR,
323    Instruction::SHL_INT_2ADDR,
324    Instruction::SHR_INT_2ADDR,
325    Instruction::USHR_INT_2ADDR,
326    Instruction::ADD_LONG_2ADDR,
327    Instruction::SUB_LONG_2ADDR,
328    Instruction::MUL_LONG_2ADDR,
329    Instruction::DIV_LONG_2ADDR,
330    Instruction::REM_LONG_2ADDR,
331    Instruction::AND_LONG_2ADDR,
332    Instruction::OR_LONG_2ADDR,
333    Instruction::XOR_LONG_2ADDR,
334    Instruction::SHL_LONG_2ADDR,
335    Instruction::SHR_LONG_2ADDR,
336    Instruction::USHR_LONG_2ADDR,
337    Instruction::ADD_FLOAT_2ADDR,
338    Instruction::SUB_FLOAT_2ADDR,
339    Instruction::MUL_FLOAT_2ADDR,
340    Instruction::DIV_FLOAT_2ADDR,
341    // Instruction::REM_FLOAT_2ADDR,
342    Instruction::ADD_DOUBLE_2ADDR,
343    Instruction::SUB_DOUBLE_2ADDR,
344    Instruction::MUL_DOUBLE_2ADDR,
345    Instruction::DIV_DOUBLE_2ADDR,
346    // Instruction::REM_DOUBLE_2ADDR,
347    Instruction::ADD_INT_LIT16,
348    Instruction::RSUB_INT,
349    Instruction::MUL_INT_LIT16,
350    Instruction::DIV_INT_LIT16,
351    Instruction::REM_INT_LIT16,
352    Instruction::AND_INT_LIT16,
353    Instruction::OR_INT_LIT16,
354    Instruction::XOR_INT_LIT16,
355    Instruction::ADD_INT_LIT8,
356    Instruction::RSUB_INT_LIT8,
357    Instruction::MUL_INT_LIT8,
358    Instruction::DIV_INT_LIT8,
359    Instruction::REM_INT_LIT8,
360    Instruction::AND_INT_LIT8,
361    Instruction::OR_INT_LIT8,
362    Instruction::XOR_INT_LIT8,
363    Instruction::SHL_INT_LIT8,
364    Instruction::SHR_INT_LIT8,
365    Instruction::USHR_INT_LIT8,
366    // Instruction::IGET_QUICK,
367    // Instruction::IGET_WIDE_QUICK,
368    // Instruction::IGET_OBJECT_QUICK,
369    // Instruction::IPUT_QUICK,
370    // Instruction::IPUT_WIDE_QUICK,
371    // Instruction::IPUT_OBJECT_QUICK,
372    // Instruction::INVOKE_VIRTUAL_QUICK,
373    // Instruction::INVOKE_VIRTUAL_RANGE_QUICK,
374    // Instruction::UNUSED_EB,
375    // Instruction::UNUSED_EC,
376    // Instruction::UNUSED_ED,
377    // Instruction::UNUSED_EE,
378    // Instruction::UNUSED_EF,
379    // Instruction::UNUSED_F0,
380    // Instruction::UNUSED_F1,
381    // Instruction::UNUSED_F2,
382    // Instruction::UNUSED_F3,
383    // Instruction::UNUSED_F4,
384    // Instruction::UNUSED_F5,
385    // Instruction::UNUSED_F6,
386    // Instruction::UNUSED_F7,
387    // Instruction::UNUSED_F8,
388    // Instruction::UNUSED_F9,
389    // Instruction::UNUSED_FA,
390    // Instruction::UNUSED_FB,
391    // Instruction::UNUSED_FC,
392    // Instruction::UNUSED_FD,
393    // Instruction::UNUSED_FE,
394    // Instruction::UNUSED_FF,
395
396    // ----- ExtendedMIROpcode -----
397    // kMirOpPhi,
398    // kMirOpCopy,
399    // kMirOpFusedCmplFloat,
400    // kMirOpFusedCmpgFloat,
401    // kMirOpFusedCmplDouble,
402    // kMirOpFusedCmpgDouble,
403    // kMirOpFusedCmpLong,
404    // kMirOpNop,
405    // kMirOpNullCheck,
406    // kMirOpRangeCheck,
407    kMirOpDivZeroCheck,
408    kMirOpCheck,
409    // kMirOpCheckPart2,
410    // kMirOpSelect,
411    // kMirOpLast,
412};
413
414// TODO: Remove this when we are able to compile everything.
415int x86_64_support_list[] = {
416    Instruction::NOP,
417    // Instruction::MOVE,
418    // Instruction::MOVE_FROM16,
419    // Instruction::MOVE_16,
420    // Instruction::MOVE_WIDE,
421    // Instruction::MOVE_WIDE_FROM16,
422    // Instruction::MOVE_WIDE_16,
423    // Instruction::MOVE_OBJECT,
424    // Instruction::MOVE_OBJECT_FROM16,
425    // Instruction::MOVE_OBJECT_16,
426    // Instruction::MOVE_RESULT,
427    // Instruction::MOVE_RESULT_WIDE,
428    // Instruction::MOVE_RESULT_OBJECT,
429    // Instruction::MOVE_EXCEPTION,
430    Instruction::RETURN_VOID,
431    Instruction::RETURN,
432    // Instruction::RETURN_WIDE,
433    Instruction::RETURN_OBJECT,
434    // Instruction::CONST_4,
435    // Instruction::CONST_16,
436    // Instruction::CONST,
437    // Instruction::CONST_HIGH16,
438    // Instruction::CONST_WIDE_16,
439    // Instruction::CONST_WIDE_32,
440    // Instruction::CONST_WIDE,
441    // Instruction::CONST_WIDE_HIGH16,
442    // Instruction::CONST_STRING,
443    // Instruction::CONST_STRING_JUMBO,
444    // Instruction::CONST_CLASS,
445    // Instruction::MONITOR_ENTER,
446    // Instruction::MONITOR_EXIT,
447    // Instruction::CHECK_CAST,
448    // Instruction::INSTANCE_OF,
449    // Instruction::ARRAY_LENGTH,
450    // Instruction::NEW_INSTANCE,
451    // Instruction::NEW_ARRAY,
452    // Instruction::FILLED_NEW_ARRAY,
453    // Instruction::FILLED_NEW_ARRAY_RANGE,
454    // Instruction::FILL_ARRAY_DATA,
455    // Instruction::THROW,
456    // Instruction::GOTO,
457    // Instruction::GOTO_16,
458    // Instruction::GOTO_32,
459    // Instruction::PACKED_SWITCH,
460    // Instruction::SPARSE_SWITCH,
461    // Instruction::CMPL_FLOAT,
462    // Instruction::CMPG_FLOAT,
463    // Instruction::CMPL_DOUBLE,
464    // Instruction::CMPG_DOUBLE,
465    // Instruction::CMP_LONG,
466    // Instruction::IF_EQ,
467    // Instruction::IF_NE,
468    // Instruction::IF_LT,
469    // Instruction::IF_GE,
470    // Instruction::IF_GT,
471    // Instruction::IF_LE,
472    // Instruction::IF_EQZ,
473    // Instruction::IF_NEZ,
474    // Instruction::IF_LTZ,
475    // Instruction::IF_GEZ,
476    // Instruction::IF_GTZ,
477    // Instruction::IF_LEZ,
478    // Instruction::UNUSED_3E,
479    // Instruction::UNUSED_3F,
480    // Instruction::UNUSED_40,
481    // Instruction::UNUSED_41,
482    // Instruction::UNUSED_42,
483    // Instruction::UNUSED_43,
484    // Instruction::AGET,
485    // Instruction::AGET_WIDE,
486    // Instruction::AGET_OBJECT,
487    // Instruction::AGET_BOOLEAN,
488    // Instruction::AGET_BYTE,
489    // Instruction::AGET_CHAR,
490    // Instruction::AGET_SHORT,
491    // Instruction::APUT,
492    // Instruction::APUT_WIDE,
493    // Instruction::APUT_OBJECT,
494    // Instruction::APUT_BOOLEAN,
495    // Instruction::APUT_BYTE,
496    // Instruction::APUT_CHAR,
497    // Instruction::APUT_SHORT,
498    // Instruction::IGET,
499    // Instruction::IGET_WIDE,
500    // Instruction::IGET_OBJECT,
501    // Instruction::IGET_BOOLEAN,
502    // Instruction::IGET_BYTE,
503    // Instruction::IGET_CHAR,
504    // Instruction::IGET_SHORT,
505    // Instruction::IPUT,
506    // Instruction::IPUT_WIDE,
507    // Instruction::IPUT_OBJECT,
508    // Instruction::IPUT_BOOLEAN,
509    // Instruction::IPUT_BYTE,
510    // Instruction::IPUT_CHAR,
511    // Instruction::IPUT_SHORT,
512    Instruction::SGET,
513    // Instruction::SGET_WIDE,
514    Instruction::SGET_OBJECT,
515    Instruction::SGET_BOOLEAN,
516    Instruction::SGET_BYTE,
517    Instruction::SGET_CHAR,
518    Instruction::SGET_SHORT,
519    Instruction::SPUT,
520    // Instruction::SPUT_WIDE,
521    Instruction::SPUT_OBJECT,
522    Instruction::SPUT_BOOLEAN,
523    Instruction::SPUT_BYTE,
524    Instruction::SPUT_CHAR,
525    Instruction::SPUT_SHORT,
526    Instruction::INVOKE_VIRTUAL,
527    Instruction::INVOKE_SUPER,
528    Instruction::INVOKE_DIRECT,
529    Instruction::INVOKE_STATIC,
530    Instruction::INVOKE_INTERFACE,
531    // Instruction::RETURN_VOID_BARRIER,
532    // Instruction::INVOKE_VIRTUAL_RANGE,
533    // Instruction::INVOKE_SUPER_RANGE,
534    // Instruction::INVOKE_DIRECT_RANGE,
535    // Instruction::INVOKE_STATIC_RANGE,
536    // Instruction::INVOKE_INTERFACE_RANGE,
537    // Instruction::UNUSED_79,
538    // Instruction::UNUSED_7A,
539    // Instruction::NEG_INT,
540    // Instruction::NOT_INT,
541    // Instruction::NEG_LONG,
542    // Instruction::NOT_LONG,
543    // Instruction::NEG_FLOAT,
544    // Instruction::NEG_DOUBLE,
545    // Instruction::INT_TO_LONG,
546    // Instruction::INT_TO_FLOAT,
547    // Instruction::INT_TO_DOUBLE,
548    // Instruction::LONG_TO_INT,
549    // Instruction::LONG_TO_FLOAT,
550    // Instruction::LONG_TO_DOUBLE,
551    // Instruction::FLOAT_TO_INT,
552    // Instruction::FLOAT_TO_LONG,
553    // Instruction::FLOAT_TO_DOUBLE,
554    // Instruction::DOUBLE_TO_INT,
555    // Instruction::DOUBLE_TO_LONG,
556    // Instruction::DOUBLE_TO_FLOAT,
557    // Instruction::INT_TO_BYTE,
558    // Instruction::INT_TO_CHAR,
559    // Instruction::INT_TO_SHORT,
560    // Instruction::ADD_INT,
561    // Instruction::SUB_INT,
562    // Instruction::MUL_INT,
563    // Instruction::DIV_INT,
564    // Instruction::REM_INT,
565    // Instruction::AND_INT,
566    // Instruction::OR_INT,
567    // Instruction::XOR_INT,
568    // Instruction::SHL_INT,
569    // Instruction::SHR_INT,
570    // Instruction::USHR_INT,
571    // Instruction::ADD_LONG,
572    // Instruction::SUB_LONG,
573    // Instruction::MUL_LONG,
574    // Instruction::DIV_LONG,
575    // Instruction::REM_LONG,
576    // Instruction::AND_LONG,
577    // Instruction::OR_LONG,
578    // Instruction::XOR_LONG,
579    // Instruction::SHL_LONG,
580    // Instruction::SHR_LONG,
581    // Instruction::USHR_LONG,
582    // Instruction::ADD_FLOAT,
583    // Instruction::SUB_FLOAT,
584    // Instruction::MUL_FLOAT,
585    // Instruction::DIV_FLOAT,
586    // Instruction::REM_FLOAT,
587    // Instruction::ADD_DOUBLE,
588    // Instruction::SUB_DOUBLE,
589    // Instruction::MUL_DOUBLE,
590    // Instruction::DIV_DOUBLE,
591    // Instruction::REM_DOUBLE,
592    // Instruction::ADD_INT_2ADDR,
593    // Instruction::SUB_INT_2ADDR,
594    // Instruction::MUL_INT_2ADDR,
595    // Instruction::DIV_INT_2ADDR,
596    // Instruction::REM_INT_2ADDR,
597    // Instruction::AND_INT_2ADDR,
598    // Instruction::OR_INT_2ADDR,
599    // Instruction::XOR_INT_2ADDR,
600    // Instruction::SHL_INT_2ADDR,
601    // Instruction::SHR_INT_2ADDR,
602    // Instruction::USHR_INT_2ADDR,
603    // Instruction::ADD_LONG_2ADDR,
604    // Instruction::SUB_LONG_2ADDR,
605    // Instruction::MUL_LONG_2ADDR,
606    // Instruction::DIV_LONG_2ADDR,
607    // Instruction::REM_LONG_2ADDR,
608    // Instruction::AND_LONG_2ADDR,
609    // Instruction::OR_LONG_2ADDR,
610    // Instruction::XOR_LONG_2ADDR,
611    // Instruction::SHL_LONG_2ADDR,
612    // Instruction::SHR_LONG_2ADDR,
613    // Instruction::USHR_LONG_2ADDR,
614    // Instruction::ADD_FLOAT_2ADDR,
615    // Instruction::SUB_FLOAT_2ADDR,
616    // Instruction::MUL_FLOAT_2ADDR,
617    // Instruction::DIV_FLOAT_2ADDR,
618    // Instruction::REM_FLOAT_2ADDR,
619    // Instruction::ADD_DOUBLE_2ADDR,
620    // Instruction::SUB_DOUBLE_2ADDR,
621    // Instruction::MUL_DOUBLE_2ADDR,
622    // Instruction::DIV_DOUBLE_2ADDR,
623    // Instruction::REM_DOUBLE_2ADDR,
624    // Instruction::ADD_INT_LIT16,
625    // Instruction::RSUB_INT,
626    // Instruction::MUL_INT_LIT16,
627    // Instruction::DIV_INT_LIT16,
628    // Instruction::REM_INT_LIT16,
629    // Instruction::AND_INT_LIT16,
630    // Instruction::OR_INT_LIT16,
631    // Instruction::XOR_INT_LIT16,
632    // Instruction::ADD_INT_LIT8,
633    // Instruction::RSUB_INT_LIT8,
634    // Instruction::MUL_INT_LIT8,
635    // Instruction::DIV_INT_LIT8,
636    // Instruction::REM_INT_LIT8,
637    // Instruction::AND_INT_LIT8,
638    // Instruction::OR_INT_LIT8,
639    // Instruction::XOR_INT_LIT8,
640    // Instruction::SHL_INT_LIT8,
641    // Instruction::SHR_INT_LIT8,
642    // Instruction::USHR_INT_LIT8,
643    // Instruction::IGET_QUICK,
644    // Instruction::IGET_WIDE_QUICK,
645    // Instruction::IGET_OBJECT_QUICK,
646    // Instruction::IPUT_QUICK,
647    // Instruction::IPUT_WIDE_QUICK,
648    // Instruction::IPUT_OBJECT_QUICK,
649    // Instruction::INVOKE_VIRTUAL_QUICK,
650    // Instruction::INVOKE_VIRTUAL_RANGE_QUICK,
651    // Instruction::UNUSED_EB,
652    // Instruction::UNUSED_EC,
653    // Instruction::UNUSED_ED,
654    // Instruction::UNUSED_EE,
655    // Instruction::UNUSED_EF,
656    // Instruction::UNUSED_F0,
657    // Instruction::UNUSED_F1,
658    // Instruction::UNUSED_F2,
659    // Instruction::UNUSED_F3,
660    // Instruction::UNUSED_F4,
661    // Instruction::UNUSED_F5,
662    // Instruction::UNUSED_F6,
663    // Instruction::UNUSED_F7,
664    // Instruction::UNUSED_F8,
665    // Instruction::UNUSED_F9,
666    // Instruction::UNUSED_FA,
667    // Instruction::UNUSED_FB,
668    // Instruction::UNUSED_FC,
669    // Instruction::UNUSED_FD,
670    // Instruction::UNUSED_FE,
671    // Instruction::UNUSED_FF,
672
673    // ----- ExtendedMIROpcode -----
674    // kMirOpPhi,
675    // kMirOpCopy,
676    // kMirOpFusedCmplFloat,
677    // kMirOpFusedCmpgFloat,
678    // kMirOpFusedCmplDouble,
679    // kMirOpFusedCmpgDouble,
680    // kMirOpFusedCmpLong,
681    // kMirOpNop,
682    // kMirOpNullCheck,
683    // kMirOpRangeCheck,
684    // kMirOpDivZeroCheck,
685    // kMirOpCheck,
686    // kMirOpCheckPart2,
687    // kMirOpSelect,
688    // kMirOpLast,
689};
690
691// Z : boolean
692// B : byte
693// S : short
694// C : char
695// I : int
696// J : long
697// F : float
698// D : double
699// L : reference(object, array)
700// V : void
701// (ARM64) Current calling conversion only support 32bit softfp
702//         which has problems with long, float, double
703constexpr char arm64_supported_types[] = "ZBSCILVJFD";
704// (x84_64) We still have troubles with compiling longs/doubles/floats
705constexpr char x86_64_supported_types[] = "ZBSCILV";
706
707// TODO: Remove this when we are able to compile everything.
708static bool CanCompileShorty(const char* shorty, InstructionSet instruction_set) {
709  uint32_t shorty_size = strlen(shorty);
710  CHECK_GE(shorty_size, 1u);
711  // Set a limitation on maximum number of parameters.
712  // Note : there is an implied "method*" parameter, and probably "this" as well.
713  // 1 is for the return type. Currently, we only accept 2 parameters at the most.
714  // (x86_64): For now we have the same limitation. But we might want to split this
715  //           check in future into two separate cases for arm64 and x86_64.
716  if (shorty_size > (1 + 2)) {
717    return false;
718  }
719
720  const char* supported_types = arm64_supported_types;
721  if (instruction_set == kX86_64) {
722    supported_types = x86_64_supported_types;
723  }
724  for (uint32_t i = 0; i < shorty_size; i++) {
725    if (strchr(supported_types, shorty[i]) == nullptr) {
726      return false;
727    }
728  }
729  return true;
730};
731
732// TODO: Remove this when we are able to compile everything.
733// Skip the method that we do not support currently.
734static bool CanCompileMethod(uint32_t method_idx, const DexFile& dex_file,
735                             CompilationUnit& cu) {
736  // There is some limitation with current ARM 64 backend.
737  if (cu.instruction_set == kArm64 || cu.instruction_set == kX86_64) {
738    // Check if we can compile the prototype.
739    const char* shorty = dex_file.GetMethodShorty(dex_file.GetMethodId(method_idx));
740    if (!CanCompileShorty(shorty, cu.instruction_set)) {
741      VLOG(compiler) << "Unsupported shorty : " << shorty;
742      return false;
743    }
744
745    const int *support_list = arm64_support_list;
746    int support_list_size = arraysize(arm64_support_list);
747    if (cu.instruction_set == kX86_64) {
748      support_list = x86_64_support_list;
749      support_list_size = arraysize(x86_64_support_list);
750    }
751
752    for (int idx = 0; idx < cu.mir_graph->GetNumBlocks(); idx++) {
753      BasicBlock* bb = cu.mir_graph->GetBasicBlock(idx);
754      if (bb == NULL) continue;
755      if (bb->block_type == kDead) continue;
756      for (MIR* mir = bb->first_mir_insn; mir != nullptr; mir = mir->next) {
757        int opcode = mir->dalvikInsn.opcode;
758        // Check if we support the byte code.
759        if (std::find(support_list, support_list + support_list_size,
760            opcode) == support_list + support_list_size) {
761          if (!cu.mir_graph->IsPseudoMirOp(opcode)) {
762            VLOG(compiler) << "Unsupported dalvik byte code : "
763                           << mir->dalvikInsn.opcode;
764          } else {
765            VLOG(compiler) << "Unsupported extended MIR opcode : "
766                           << MIRGraph::extended_mir_op_names_[opcode - kMirOpFirst];
767          }
768          return false;
769        }
770        // Check if it invokes a prototype that we cannot support.
771        if (Instruction::INVOKE_VIRTUAL == opcode ||
772            Instruction::INVOKE_SUPER == opcode ||
773            Instruction::INVOKE_DIRECT == opcode ||
774            Instruction::INVOKE_STATIC == opcode ||
775            Instruction::INVOKE_INTERFACE == opcode) {
776          uint32_t invoke_method_idx = mir->dalvikInsn.vB;
777          const char* invoke_method_shorty = dex_file.GetMethodShorty(
778              dex_file.GetMethodId(invoke_method_idx));
779          if (!CanCompileShorty(invoke_method_shorty, cu.instruction_set)) {
780            VLOG(compiler) << "Unsupported to invoke '"
781                           << PrettyMethod(invoke_method_idx, dex_file)
782                           << "' with shorty : " << invoke_method_shorty;
783            return false;
784          }
785        }
786      }
787    }
788
789    LOG(INFO) << "Using experimental instruction set A64 for "
790              << PrettyMethod(method_idx, dex_file);
791  }
792  return true;
793}
794
795static CompiledMethod* CompileMethod(CompilerDriver& driver,
796                                     Compiler* compiler,
797                                     const DexFile::CodeItem* code_item,
798                                     uint32_t access_flags, InvokeType invoke_type,
799                                     uint16_t class_def_idx, uint32_t method_idx,
800                                     jobject class_loader, const DexFile& dex_file,
801                                     void* llvm_compilation_unit) {
802  VLOG(compiler) << "Compiling " << PrettyMethod(method_idx, dex_file) << "...";
803  if (code_item->insns_size_in_code_units_ >= 0x10000) {
804    LOG(INFO) << "Method size exceeds compiler limits: " << code_item->insns_size_in_code_units_
805              << " in " << PrettyMethod(method_idx, dex_file);
806    return NULL;
807  }
808
809  if (!driver.GetCompilerOptions().IsCompilationEnabled()) {
810    return nullptr;
811  }
812
813  ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
814  CompilationUnit cu(driver.GetArenaPool());
815
816  cu.compiler_driver = &driver;
817  cu.class_linker = class_linker;
818  cu.instruction_set = driver.GetInstructionSet();
819  if (cu.instruction_set == kArm) {
820    cu.instruction_set = kThumb2;
821  }
822  cu.target64 = Is64BitInstructionSet(cu.instruction_set);
823  cu.compiler = compiler;
824  // TODO: x86_64 & arm64 are not yet implemented.
825  CHECK((cu.instruction_set == kThumb2) ||
826        (cu.instruction_set == kArm64) ||
827        (cu.instruction_set == kX86) ||
828        (cu.instruction_set == kX86_64) ||
829        (cu.instruction_set == kMips));
830
831  /* Adjust this value accordingly once inlining is performed */
832  cu.num_dalvik_registers = code_item->registers_size_;
833  // TODO: set this from command line
834  cu.compiler_flip_match = false;
835  bool use_match = !cu.compiler_method_match.empty();
836  bool match = use_match && (cu.compiler_flip_match ^
837      (PrettyMethod(method_idx, dex_file).find(cu.compiler_method_match) !=
838       std::string::npos));
839  if (!use_match || match) {
840    cu.disable_opt = kCompilerOptimizerDisableFlags;
841    cu.enable_debug = kCompilerDebugFlags;
842    cu.verbose = VLOG_IS_ON(compiler) ||
843        (cu.enable_debug & (1 << kDebugVerbose));
844  }
845
846  if (gVerboseMethods.size() != 0) {
847    cu.verbose = false;
848    for (size_t i = 0; i < gVerboseMethods.size(); ++i) {
849      if (PrettyMethod(method_idx, dex_file).find(gVerboseMethods[i])
850          != std::string::npos) {
851        cu.verbose = true;
852        break;
853      }
854    }
855  }
856
857  if (cu.verbose) {
858    cu.enable_debug |= (1 << kDebugCodegenDump);
859  }
860
861  /*
862   * TODO: rework handling of optimization and debug flags.  Should we split out
863   * MIR and backend flags?  Need command-line setting as well.
864   */
865
866  compiler->InitCompilationUnit(cu);
867
868  if (cu.instruction_set == kMips) {
869    // Disable some optimizations for mips for now
870    cu.disable_opt |= (
871        (1 << kLoadStoreElimination) |
872        (1 << kLoadHoisting) |
873        (1 << kSuppressLoads) |
874        (1 << kNullCheckElimination) |
875        (1 << kPromoteRegs) |
876        (1 << kTrackLiveTemps) |
877        (1 << kSafeOptimizations) |
878        (1 << kBBOpt) |
879        (1 << kMatch) |
880        (1 << kPromoteCompilerTemps));
881  }
882
883  if (cu.instruction_set == kArm64 || cu.instruction_set == kX86_64) {
884    // TODO(Arm64): enable optimizations once backend is mature enough.
885    // TODO(X86_64): enable optimizations once backend is mature enough.
886    cu.disable_opt = ~(uint32_t)0;
887    cu.enable_debug |= (1 << kDebugCodegenDump);
888  }
889
890  cu.StartTimingSplit("BuildMIRGraph");
891  cu.mir_graph.reset(new MIRGraph(&cu, &cu.arena));
892
893  /*
894   * After creation of the MIR graph, also create the code generator.
895   * The reason we do this is that optimizations on the MIR graph may need to get information
896   * that is only available if a CG exists.
897   */
898  cu.cg.reset(compiler->GetCodeGenerator(&cu, llvm_compilation_unit));
899
900  /* Gathering opcode stats? */
901  if (kCompilerDebugFlags & (1 << kDebugCountOpcodes)) {
902    cu.mir_graph->EnableOpcodeCounting();
903  }
904
905  // Check early if we should skip this compilation if using the profiled filter.
906  if (cu.compiler_driver->ProfilePresent()) {
907    std::string methodname = PrettyMethod(method_idx, dex_file);
908    if (cu.mir_graph->SkipCompilation(methodname)) {
909      return NULL;
910    }
911  }
912
913  /* Build the raw MIR graph */
914  cu.mir_graph->InlineMethod(code_item, access_flags, invoke_type, class_def_idx, method_idx,
915                              class_loader, dex_file);
916
917  // TODO(Arm64): Remove this when we are able to compile everything.
918  if (!CanCompileMethod(method_idx, dex_file, cu)) {
919    VLOG(compiler) << "Cannot compile method : " << PrettyMethod(method_idx, dex_file);
920    return nullptr;
921  }
922
923  cu.NewTimingSplit("MIROpt:CheckFilters");
924  if (cu.mir_graph->SkipCompilation()) {
925    return NULL;
926  }
927
928  /* Create the pass driver and launch it */
929  PassDriverMEOpts pass_driver(&cu);
930  pass_driver.Launch();
931
932  if (cu.enable_debug & (1 << kDebugDumpCheckStats)) {
933    cu.mir_graph->DumpCheckStats();
934  }
935
936  if (kCompilerDebugFlags & (1 << kDebugCountOpcodes)) {
937    cu.mir_graph->ShowOpcodeStats();
938  }
939
940  /* Reassociate sreg names with original Dalvik vreg names. */
941  cu.mir_graph->RemapRegLocations();
942
943  /* Free Arenas from the cu.arena_stack for reuse by the cu.arena in the codegen. */
944  if (cu.enable_debug & (1 << kDebugShowMemoryUsage)) {
945    if (cu.arena_stack.PeakBytesAllocated() > 256 * 1024) {
946      MemStats stack_stats(cu.arena_stack.GetPeakStats());
947      LOG(INFO) << PrettyMethod(method_idx, dex_file) << " " << Dumpable<MemStats>(stack_stats);
948    }
949  }
950  cu.arena_stack.Reset();
951
952  CompiledMethod* result = NULL;
953
954  cu.cg->Materialize();
955
956  cu.NewTimingSplit("Dedupe");  /* deduping takes up the vast majority of time in GetCompiledMethod(). */
957  result = cu.cg->GetCompiledMethod();
958  cu.NewTimingSplit("Cleanup");
959
960  if (result) {
961    VLOG(compiler) << "Compiled " << PrettyMethod(method_idx, dex_file);
962  } else {
963    VLOG(compiler) << "Deferred " << PrettyMethod(method_idx, dex_file);
964  }
965
966  if (cu.enable_debug & (1 << kDebugShowMemoryUsage)) {
967    if (cu.arena.BytesAllocated() > (1 * 1024 *1024)) {
968      MemStats mem_stats(cu.arena.GetMemStats());
969      LOG(INFO) << PrettyMethod(method_idx, dex_file) << " " << Dumpable<MemStats>(mem_stats);
970    }
971  }
972
973  if (cu.enable_debug & (1 << kDebugShowSummaryMemoryUsage)) {
974    LOG(INFO) << "MEMINFO " << cu.arena.BytesAllocated() << " " << cu.mir_graph->GetNumBlocks()
975              << " " << PrettyMethod(method_idx, dex_file);
976  }
977
978  cu.EndTiming();
979  driver.GetTimingsLogger()->AddLogger(cu.timings);
980  return result;
981}
982
983CompiledMethod* CompileOneMethod(CompilerDriver& driver,
984                                 Compiler* compiler,
985                                 const DexFile::CodeItem* code_item,
986                                 uint32_t access_flags,
987                                 InvokeType invoke_type,
988                                 uint16_t class_def_idx,
989                                 uint32_t method_idx,
990                                 jobject class_loader,
991                                 const DexFile& dex_file,
992                                 void* compilation_unit) {
993  return CompileMethod(driver, compiler, code_item, access_flags, invoke_type, class_def_idx,
994                       method_idx, class_loader, dex_file, compilation_unit);
995}
996
997}  // namespace art
998
999extern "C" art::CompiledMethod*
1000    ArtQuickCompileMethod(art::CompilerDriver& driver,
1001                          const art::DexFile::CodeItem* code_item,
1002                          uint32_t access_flags, art::InvokeType invoke_type,
1003                          uint16_t class_def_idx, uint32_t method_idx, jobject class_loader,
1004                          const art::DexFile& dex_file) {
1005  // TODO: check method fingerprint here to determine appropriate backend type.  Until then, use build default
1006  art::Compiler* compiler = driver.GetCompiler();
1007  return art::CompileOneMethod(driver, compiler, code_item, access_flags, invoke_type,
1008                               class_def_idx, method_idx, class_loader, dex_file,
1009                               NULL /* use thread llvm_info */);
1010}
1011