summaryrefslogtreecommitdiffstats
path: root/js/src/jit/mips64/MacroAssembler-mips64.h
blob: b50ee7978eebee8501ae053446bcf252d7c9df82 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * vim: set ts=8 sts=4 et sw=4 tw=99:
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef jit_mips64_MacroAssembler_mips64_h
#define jit_mips64_MacroAssembler_mips64_h

#include "jsopcode.h"

#include "jit/IonCaches.h"
#include "jit/JitFrames.h"
#include "jit/mips-shared/MacroAssembler-mips-shared.h"
#include "jit/MoveResolver.h"

namespace js {
namespace jit {

enum LiFlags
{
    Li64 = 0,
    Li48 = 1,
};

struct ImmShiftedTag : public ImmWord
{
    explicit ImmShiftedTag(JSValueShiftedTag shtag)
      : ImmWord((uintptr_t)shtag)
    { }

    explicit ImmShiftedTag(JSValueType type)
      : ImmWord(uintptr_t(JSValueShiftedTag(JSVAL_TYPE_TO_SHIFTED_TAG(type))))
    { }
};

struct ImmTag : public Imm32
{
    ImmTag(JSValueTag mask)
      : Imm32(int32_t(mask))
    { }
};

static const ValueOperand JSReturnOperand = ValueOperand(JSReturnReg);

static const int defaultShift = 3;
static_assert(1 << defaultShift == sizeof(JS::Value), "The defaultShift is wrong");

class MacroAssemblerMIPS64 : public MacroAssemblerMIPSShared
{
  public:
    using MacroAssemblerMIPSShared::ma_b;
    using MacroAssemblerMIPSShared::ma_li;
    using MacroAssemblerMIPSShared::ma_ss;
    using MacroAssemblerMIPSShared::ma_sd;
    using MacroAssemblerMIPSShared::ma_load;
    using MacroAssemblerMIPSShared::ma_store;
    using MacroAssemblerMIPSShared::ma_cmp_set;
    using MacroAssemblerMIPSShared::ma_subTestOverflow;

    void ma_li(Register dest, CodeOffset* label);
    void ma_li(Register dest, ImmWord imm);
    void ma_liPatchable(Register dest, ImmPtr imm);
    void ma_liPatchable(Register dest, ImmWord imm, LiFlags flags = Li48);

    // Negate
    void ma_dnegu(Register rd, Register rs);

    // Shift operations
    void ma_dsll(Register rd, Register rt, Imm32 shift);
    void ma_dsrl(Register rd, Register rt, Imm32 shift);
    void ma_dsra(Register rd, Register rt, Imm32 shift);
    void ma_dror(Register rd, Register rt, Imm32 shift);
    void ma_drol(Register rd, Register rt, Imm32 shift);

    void ma_dsll(Register rd, Register rt, Register shift);
    void ma_dsrl(Register rd, Register rt, Register shift);
    void ma_dsra(Register rd, Register rt, Register shift);
    void ma_dror(Register rd, Register rt, Register shift);
    void ma_drol(Register rd, Register rt, Register shift);

    void ma_dins(Register rt, Register rs, Imm32 pos, Imm32 size);
    void ma_dext(Register rt, Register rs, Imm32 pos, Imm32 size);

    void ma_dctz(Register rd, Register rs);

    // load
    void ma_load(Register dest, Address address, LoadStoreSize size = SizeWord,
                 LoadStoreExtension extension = SignExtend);

    // store
    void ma_store(Register data, Address address, LoadStoreSize size = SizeWord,
                  LoadStoreExtension extension = SignExtend);

    // arithmetic based ops
    // add
    void ma_daddu(Register rd, Register rs, Imm32 imm);
    void ma_daddu(Register rd, Register rs);
    void ma_daddu(Register rd, Imm32 imm);
    template <typename L>
    void ma_addTestOverflow(Register rd, Register rs, Register rt, L overflow);
    template <typename L>
    void ma_addTestOverflow(Register rd, Register rs, Imm32 imm, L overflow);

    // subtract
    void ma_dsubu(Register rd, Register rs, Imm32 imm);
    void ma_dsubu(Register rd, Register rs);
    void ma_dsubu(Register rd, Imm32 imm);
    void ma_subTestOverflow(Register rd, Register rs, Register rt, Label* overflow);

    // multiplies.  For now, there are only few that we care about.
    void ma_dmult(Register rs, Imm32 imm);

    // stack
    void ma_pop(Register r);
    void ma_push(Register r);

    // branches when done from within mips-specific code
    void ma_b(Register lhs, ImmWord imm, Label* l, Condition c, JumpKind jumpKind = MixedJump);
    void ma_b(Register lhs, Address addr, Label* l, Condition c, JumpKind jumpKind = MixedJump);
    void ma_b(Address addr, Imm32 imm, Label* l, Condition c, JumpKind jumpKind = MixedJump);
    void ma_b(Address addr, ImmGCPtr imm, Label* l, Condition c, JumpKind jumpKind = MixedJump);
    void ma_b(Address addr, Register rhs, Label* l, Condition c, JumpKind jumpKind = MixedJump) {
        MOZ_ASSERT(rhs != ScratchRegister);
        ma_load(ScratchRegister, addr, SizeDouble);
        ma_b(ScratchRegister, rhs, l, c, jumpKind);
    }

    // fp instructions
    void ma_lid(FloatRegister dest, double value);

    void ma_mv(FloatRegister src, ValueOperand dest);
    void ma_mv(ValueOperand src, FloatRegister dest);

    void ma_ls(FloatRegister fd, Address address);
    void ma_ld(FloatRegister fd, Address address);
    void ma_sd(FloatRegister fd, Address address);
    void ma_ss(FloatRegister fd, Address address);

    void ma_pop(FloatRegister fs);
    void ma_push(FloatRegister fs);

    void ma_cmp_set(Register dst, Register lhs, ImmWord imm, Condition c);
    void ma_cmp_set(Register dst, Register lhs, ImmPtr imm, Condition c);

    // These functions abstract the access to high part of the double precision
    // float register. They are intended to work on both 32 bit and 64 bit
    // floating point coprocessor.
    void moveToDoubleHi(Register src, FloatRegister dest) {
        as_mthc1(src, dest);
    }
    void moveFromDoubleHi(FloatRegister src, Register dest) {
        as_mfhc1(dest, src);
    }

    void moveToDouble(Register src, FloatRegister dest) {
        as_dmtc1(src, dest);
    }
    void moveFromDouble(FloatRegister src, Register dest) {
        as_dmfc1(dest, src);
    }
};

class MacroAssembler;

class MacroAssemblerMIPS64Compat : public MacroAssemblerMIPS64
{
  public:
    using MacroAssemblerMIPS64::call;

    MacroAssemblerMIPS64Compat()
    { }

    void convertBoolToInt32(Register source, Register dest);
    void convertInt32ToDouble(Register src, FloatRegister dest);
    void convertInt32ToDouble(const Address& src, FloatRegister dest);
    void convertInt32ToDouble(const BaseIndex& src, FloatRegister dest);
    void convertUInt32ToDouble(Register src, FloatRegister dest);
    void convertUInt32ToFloat32(Register src, FloatRegister dest);
    void convertDoubleToFloat32(FloatRegister src, FloatRegister dest);
    void convertDoubleToInt32(FloatRegister src, Register dest, Label* fail,
                              bool negativeZeroCheck = true);
    void convertFloat32ToInt32(FloatRegister src, Register dest, Label* fail,
                               bool negativeZeroCheck = true);

    void convertFloat32ToDouble(FloatRegister src, FloatRegister dest);
    void convertInt32ToFloat32(Register src, FloatRegister dest);
    void convertInt32ToFloat32(const Address& src, FloatRegister dest);

    void movq(Register rs, Register rd);

    void computeScaledAddress(const BaseIndex& address, Register dest);

    void computeEffectiveAddress(const Address& address, Register dest) {
        ma_daddu(dest, address.base, Imm32(address.offset));
    }

    inline void computeEffectiveAddress(const BaseIndex& address, Register dest);

    void j(Label* dest) {
        ma_b(dest);
    }

    void mov(Register src, Register dest) {
        as_ori(dest, src, 0);
    }
    void mov(ImmWord imm, Register dest) {
        ma_li(dest, imm);
    }
    void mov(ImmPtr imm, Register dest) {
        mov(ImmWord(uintptr_t(imm.value)), dest);
    }
    void mov(Register src, Address dest) {
        MOZ_CRASH("NYI-IC");
    }
    void mov(Address src, Register dest) {
        MOZ_CRASH("NYI-IC");
    }

    void writeDataRelocation(const Value& val) {
        if (val.isGCThing()) {
            gc::Cell* cell = val.toGCThing();
            if (cell && gc::IsInsideNursery(cell))
                embedsNurseryPointers_ = true;
            dataRelocations_.writeUnsigned(currentOffset());
        }
    }

    void branch(JitCode* c) {
        BufferOffset bo = m_buffer.nextOffset();
        addPendingJump(bo, ImmPtr(c->raw()), Relocation::JITCODE);
        ma_liPatchable(ScratchRegister, ImmPtr(c->raw()));
        as_jr(ScratchRegister);
        as_nop();
    }
    void branch(const Register reg) {
        as_jr(reg);
        as_nop();
    }
    void nop() {
        as_nop();
    }
    void ret() {
        ma_pop(ra);
        as_jr(ra);
        as_nop();
    }
    inline void retn(Imm32 n);
    void push(Imm32 imm) {
        ma_li(ScratchRegister, imm);
        ma_push(ScratchRegister);
    }
    void push(ImmWord imm) {
        ma_li(ScratchRegister, imm);
        ma_push(ScratchRegister);
    }
    void push(ImmGCPtr imm) {
        ma_li(ScratchRegister, imm);
        ma_push(ScratchRegister);
    }
    void push(const Address& address) {
        loadPtr(address, ScratchRegister);
        ma_push(ScratchRegister);
    }
    void push(Register reg) {
        ma_push(reg);
    }
    void push(FloatRegister reg) {
        ma_push(reg);
    }
    void pop(Register reg) {
        ma_pop(reg);
    }
    void pop(FloatRegister reg) {
        ma_pop(reg);
    }

    // Emit a branch that can be toggled to a non-operation. On MIPS64 we use
    // "andi" instruction to toggle the branch.
    // See ToggleToJmp(), ToggleToCmp().
    CodeOffset toggledJump(Label* label);

    // Emit a "jalr" or "nop" instruction. ToggleCall can be used to patch
    // this instruction.
    CodeOffset toggledCall(JitCode* target, bool enabled);

    static size_t ToggledCallSize(uint8_t* code) {
        // Six instructions used in: MacroAssemblerMIPS64Compat::toggledCall
        return 6 * sizeof(uint32_t);
    }

    CodeOffset pushWithPatch(ImmWord imm) {
        CodeOffset offset = movWithPatch(imm, ScratchRegister);
        ma_push(ScratchRegister);
        return offset;
    }

    CodeOffset movWithPatch(ImmWord imm, Register dest) {
        CodeOffset offset = CodeOffset(currentOffset());
        ma_liPatchable(dest, imm, Li64);
        return offset;
    }
    CodeOffset movWithPatch(ImmPtr imm, Register dest) {
        CodeOffset offset = CodeOffset(currentOffset());
        ma_liPatchable(dest, imm);
        return offset;
    }

    void jump(Label* label) {
        ma_b(label);
    }
    void jump(Register reg) {
        as_jr(reg);
        as_nop();
    }
    void jump(const Address& address) {
        loadPtr(address, ScratchRegister);
        as_jr(ScratchRegister);
        as_nop();
    }

    void jump(JitCode* code) {
        branch(code);
    }

    void jump(wasm::TrapDesc target) {
        ma_b(target);
    }

    void splitTag(Register src, Register dest) {
        ma_dsrl(dest, src, Imm32(JSVAL_TAG_SHIFT));
    }

    void splitTag(const ValueOperand& operand, Register dest) {
        splitTag(operand.valueReg(), dest);
    }

    // Returns the register containing the type tag.
    Register splitTagForTest(const ValueOperand& value) {
        splitTag(value, SecondScratchReg);
        return SecondScratchReg;
    }

    // unboxing code
    void unboxNonDouble(const ValueOperand& operand, Register dest);
    void unboxNonDouble(const Address& src, Register dest);
    void unboxNonDouble(const BaseIndex& src, Register dest);
    void unboxInt32(const ValueOperand& operand, Register dest);
    void unboxInt32(Register src, Register dest);
    void unboxInt32(const Address& src, Register dest);
    void unboxInt32(const BaseIndex& src, Register dest);
    void unboxBoolean(const ValueOperand& operand, Register dest);
    void unboxBoolean(Register src, Register dest);
    void unboxBoolean(const Address& src, Register dest);
    void unboxBoolean(const BaseIndex& src, Register dest);
    void unboxDouble(const ValueOperand& operand, FloatRegister dest);
    void unboxDouble(Register src, Register dest);
    void unboxDouble(const Address& src, FloatRegister dest);
    void unboxString(const ValueOperand& operand, Register dest);
    void unboxString(Register src, Register dest);
    void unboxString(const Address& src, Register dest);
    void unboxSymbol(const ValueOperand& src, Register dest);
    void unboxSymbol(Register src, Register dest);
    void unboxSymbol(const Address& src, Register dest);
    void unboxObject(const ValueOperand& src, Register dest);
    void unboxObject(Register src, Register dest);
    void unboxObject(const Address& src, Register dest);
    void unboxObject(const BaseIndex& src, Register dest) { unboxNonDouble(src, dest); }
    void unboxValue(const ValueOperand& src, AnyRegister dest);
    void unboxPrivate(const ValueOperand& src, Register dest);

    void notBoolean(const ValueOperand& val) {
        as_xori(val.valueReg(), val.valueReg(), 1);
    }

    // boxing code
    void boxDouble(FloatRegister src, const ValueOperand& dest);
    void boxNonDouble(JSValueType type, Register src, const ValueOperand& dest);

    // Extended unboxing API. If the payload is already in a register, returns
    // that register. Otherwise, provides a move to the given scratch register,
    // and returns that.
    Register extractObject(const Address& address, Register scratch);
    Register extractObject(const ValueOperand& value, Register scratch) {
        unboxObject(value, scratch);
        return scratch;
    }
    Register extractInt32(const ValueOperand& value, Register scratch) {
        unboxInt32(value, scratch);
        return scratch;
    }
    Register extractBoolean(const ValueOperand& value, Register scratch) {
        unboxBoolean(value, scratch);
        return scratch;
    }
    Register extractTag(const Address& address, Register scratch);
    Register extractTag(const BaseIndex& address, Register scratch);
    Register extractTag(const ValueOperand& value, Register scratch) {
        MOZ_ASSERT(scratch != ScratchRegister);
        splitTag(value, scratch);
        return scratch;
    }

    void boolValueToDouble(const ValueOperand& operand, FloatRegister dest);
    void int32ValueToDouble(const ValueOperand& operand, FloatRegister dest);
    void loadInt32OrDouble(const Address& src, FloatRegister dest);
    void loadInt32OrDouble(const BaseIndex& addr, FloatRegister dest);
    void loadConstantDouble(double dp, FloatRegister dest);
    void loadConstantDouble(wasm::RawF64 d, FloatRegister dest);

    void boolValueToFloat32(const ValueOperand& operand, FloatRegister dest);
    void int32ValueToFloat32(const ValueOperand& operand, FloatRegister dest);
    void loadConstantFloat32(float f, FloatRegister dest);
    void loadConstantFloat32(wasm::RawF32 f, FloatRegister dest);

    void testNullSet(Condition cond, const ValueOperand& value, Register dest);

    void testObjectSet(Condition cond, const ValueOperand& value, Register dest);

    void testUndefinedSet(Condition cond, const ValueOperand& value, Register dest);

    // higher level tag testing code
    Address ToPayload(Address value) {
        return value;
    }

    void moveValue(const Value& val, Register dest);

    CodeOffsetJump backedgeJump(RepatchLabel* label, Label* documentation = nullptr);
    CodeOffsetJump jumpWithPatch(RepatchLabel* label, Label* documentation = nullptr);

    template <typename T>
    void loadUnboxedValue(const T& address, MIRType type, AnyRegister dest) {
        if (dest.isFloat())
            loadInt32OrDouble(address, dest.fpu());
        else if (type == MIRType::Int32)
            unboxInt32(address, dest.gpr());
        else if (type == MIRType::Boolean)
            unboxBoolean(address, dest.gpr());
        else
            unboxNonDouble(address, dest.gpr());
    }

    template <typename T>
    void storeUnboxedPayload(ValueOperand value, T address, size_t nbytes) {
        switch (nbytes) {
          case 8:
            unboxNonDouble(value, ScratchRegister);
            storePtr(ScratchRegister, address);
            return;
          case 4:
            store32(value.valueReg(), address);
            return;
          case 1:
            store8(value.valueReg(), address);
            return;
          default: MOZ_CRASH("Bad payload width");
        }
    }

    void moveValue(const Value& val, const ValueOperand& dest);

    void moveValue(const ValueOperand& src, const ValueOperand& dest) {
        if (src.valueReg() != dest.valueReg())
          ma_move(dest.valueReg(), src.valueReg());
    }
    void boxValue(JSValueType type, Register src, Register dest) {
        MOZ_ASSERT(src != dest);

        JSValueTag tag = (JSValueTag)JSVAL_TYPE_TO_TAG(type);
        ma_li(dest, Imm32(tag));
        ma_dsll(dest, dest, Imm32(JSVAL_TAG_SHIFT));

        if (type == JSVAL_TYPE_INT32 || type == JSVAL_TYPE_BOOLEAN) {
            ma_dins(dest, src, Imm32(0), Imm32(32));
        } else {
            ma_dins(dest, src, Imm32(0), Imm32(JSVAL_TAG_SHIFT));
        }
    }

    void storeValue(ValueOperand val, Operand dst);
    void storeValue(ValueOperand val, const BaseIndex& dest);
    void storeValue(JSValueType type, Register reg, BaseIndex dest);
    void storeValue(ValueOperand val, const Address& dest);
    void storeValue(JSValueType type, Register reg, Address dest);
    void storeValue(const Value& val, Address dest);
    void storeValue(const Value& val, BaseIndex dest);
    void storeValue(const Address& src, const Address& dest, Register temp) {
        loadPtr(src, temp);
        storePtr(temp, dest);
    }

    void loadValue(Address src, ValueOperand val);
    void loadValue(Operand dest, ValueOperand val) {
        loadValue(dest.toAddress(), val);
    }
    void loadValue(const BaseIndex& addr, ValueOperand val);
    void tagValue(JSValueType type, Register payload, ValueOperand dest);

    void pushValue(ValueOperand val);
    void popValue(ValueOperand val);
    void pushValue(const Value& val) {
        if (val.isGCThing()) {
            writeDataRelocation(val);
            movWithPatch(ImmWord(val.asRawBits()), ScratchRegister);
            push(ScratchRegister);
        } else {
            push(ImmWord(val.asRawBits()));
        }
    }
    void pushValue(JSValueType type, Register reg) {
        boxValue(type, reg, ScratchRegister);
        push(ScratchRegister);
    }
    void pushValue(const Address& addr);

    void handleFailureWithHandlerTail(void* handler);

    /////////////////////////////////////////////////////////////////
    // Common interface.
    /////////////////////////////////////////////////////////////////
  public:
    // The following functions are exposed for use in platform-shared code.

    template<typename T>
    void compareExchange8SignExtend(const T& mem, Register oldval, Register newval, Register valueTemp,
                                    Register offsetTemp, Register maskTemp, Register output)
    {
        compareExchange(1, true, mem, oldval, newval, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T>
    void compareExchange8ZeroExtend(const T& mem, Register oldval, Register newval, Register valueTemp,
                                    Register offsetTemp, Register maskTemp, Register output)
    {
        compareExchange(1, false, mem, oldval, newval, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T>
    void compareExchange16SignExtend(const T& mem, Register oldval, Register newval, Register valueTemp,
                                     Register offsetTemp, Register maskTemp, Register output)
    {
        compareExchange(2, true, mem, oldval, newval, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T>
    void compareExchange16ZeroExtend(const T& mem, Register oldval, Register newval, Register valueTemp,
                                     Register offsetTemp, Register maskTemp, Register output)
    {
        compareExchange(2, false, mem, oldval, newval, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T>
    void compareExchange32(const T& mem, Register oldval, Register newval, Register valueTemp,
                           Register offsetTemp, Register maskTemp, Register output)
    {
        compareExchange(4, false, mem, oldval, newval, valueTemp, offsetTemp, maskTemp, output);
    }

    template<typename T>
    void atomicExchange8SignExtend(const T& mem, Register value, Register valueTemp,
                          Register offsetTemp, Register maskTemp, Register output)
    {
        atomicExchange(1, true, mem, value, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T>
    void atomicExchange8ZeroExtend(const T& mem, Register value, Register valueTemp,
                          Register offsetTemp, Register maskTemp, Register output)
    {
        atomicExchange(1, false, mem, value, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T>
    void atomicExchange16SignExtend(const T& mem, Register value, Register valueTemp,
                          Register offsetTemp, Register maskTemp, Register output)
    {
        atomicExchange(2, true, mem, value, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T>
    void atomicExchange16ZeroExtend(const T& mem, Register value, Register valueTemp,
                          Register offsetTemp, Register maskTemp, Register output)
    {
        atomicExchange(2, false, mem, value, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T>
    void atomicExchange32(const T& mem, Register value, Register valueTemp,
                          Register offsetTemp, Register maskTemp, Register output)
    {
        atomicExchange(4, false, mem, value, valueTemp, offsetTemp, maskTemp, output);
    }

    template<typename T, typename S>
    void atomicFetchAdd8SignExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, true, AtomicFetchAddOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchAdd8ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, false, AtomicFetchAddOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchAdd16SignExtend(const S& value, const T& mem, Register flagTemp,
                                    Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, true, AtomicFetchAddOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchAdd16ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                    Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, false, AtomicFetchAddOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchAdd32(const S& value, const T& mem, Register flagTemp,
                          Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(4, false, AtomicFetchAddOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template <typename T, typename S>
    void atomicAdd8(const T& value, const S& mem, Register flagTemp,
                    Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(1, AtomicFetchAddOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicAdd16(const T& value, const S& mem, Register flagTemp,
                     Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(2, AtomicFetchAddOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicAdd32(const T& value, const S& mem, Register flagTemp,
                     Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(4, AtomicFetchAddOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }

    template<typename T, typename S>
    void atomicFetchSub8SignExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, true, AtomicFetchSubOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchSub8ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, false, AtomicFetchSubOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchSub16SignExtend(const S& value, const T& mem, Register flagTemp,
                                    Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, true, AtomicFetchSubOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchSub16ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                    Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, false, AtomicFetchSubOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchSub32(const S& value, const T& mem, Register flagTemp,
                          Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(4, false, AtomicFetchSubOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template <typename T, typename S>
    void atomicSub8(const T& value, const S& mem, Register flagTemp,
                    Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(1, AtomicFetchSubOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicSub16(const T& value, const S& mem, Register flagTemp,
                     Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(2, AtomicFetchSubOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicSub32(const T& value, const S& mem, Register flagTemp,
                     Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(4, AtomicFetchSubOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }

    template<typename T, typename S>
    void atomicFetchAnd8SignExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, true, AtomicFetchAndOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchAnd8ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, false, AtomicFetchAndOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchAnd16SignExtend(const S& value, const T& mem, Register flagTemp,
                                    Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, true, AtomicFetchAndOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchAnd16ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                    Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, false, AtomicFetchAndOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchAnd32(const S& value, const T& mem, Register flagTemp,
                          Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(4, false, AtomicFetchAndOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template <typename T, typename S>
    void atomicAnd8(const T& value, const S& mem, Register flagTemp,
                    Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(1, AtomicFetchAndOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicAnd16(const T& value, const S& mem, Register flagTemp,
                     Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(2, AtomicFetchAndOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicAnd32(const T& value, const S& mem, Register flagTemp,
                     Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(4, AtomicFetchAndOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }

    template<typename T, typename S>
    void atomicFetchOr8SignExtend(const S& value, const T& mem, Register flagTemp,
                                  Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, true, AtomicFetchOrOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchOr8ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                  Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, false, AtomicFetchOrOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchOr16SignExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, true, AtomicFetchOrOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchOr16ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, false, AtomicFetchOrOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchOr32(const S& value, const T& mem, Register flagTemp,
                         Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(4, false, AtomicFetchOrOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template <typename T, typename S>
    void atomicOr8(const T& value, const S& mem, Register flagTemp,
                   Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(1, AtomicFetchOrOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicOr16(const T& value, const S& mem, Register flagTemp,
                    Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(2, AtomicFetchOrOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicOr32(const T& value, const S& mem, Register flagTemp,
                    Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(4, AtomicFetchOrOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }

    template<typename T, typename S>
    void atomicFetchXor8SignExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, true, AtomicFetchXorOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchXor8ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                   Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(1, false, AtomicFetchXorOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchXor16SignExtend(const S& value, const T& mem, Register flagTemp,
                                    Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, true, AtomicFetchXorOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchXor16ZeroExtend(const S& value, const T& mem, Register flagTemp,
                                    Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(2, false, AtomicFetchXorOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template<typename T, typename S>
    void atomicFetchXor32(const S& value, const T& mem, Register flagTemp,
                          Register valueTemp, Register offsetTemp, Register maskTemp, Register output)
    {
        atomicFetchOp(4, false, AtomicFetchXorOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp, output);
    }
    template <typename T, typename S>
    void atomicXor8(const T& value, const S& mem, Register flagTemp,
                     Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(1, AtomicFetchXorOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicXor16(const T& value, const S& mem, Register flagTemp,
                     Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(2, AtomicFetchXorOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }
    template <typename T, typename S>
    void atomicXor32(const T& value, const S& mem, Register flagTemp,
                     Register valueTemp, Register offsetTemp, Register maskTemp)
    {
        atomicEffectOp(4, AtomicFetchXorOp, value, mem, flagTemp, valueTemp, offsetTemp, maskTemp);
    }

    template<typename T>
    void compareExchangeToTypedIntArray(Scalar::Type arrayType, const T& mem, Register oldval, Register newval,
                                        Register temp, Register valueTemp, Register offsetTemp, Register maskTemp,
                                        AnyRegister output);

    template<typename T>
    void atomicExchangeToTypedIntArray(Scalar::Type arrayType, const T& mem, Register value,
                                       Register temp, Register valueTemp, Register offsetTemp, Register maskTemp,
                                       AnyRegister output);

    inline void incrementInt32Value(const Address& addr);

    void move32(Imm32 imm, Register dest);
    void move32(Register src, Register dest);

    void movePtr(Register src, Register dest);
    void movePtr(ImmWord imm, Register dest);
    void movePtr(ImmPtr imm, Register dest);
    void movePtr(wasm::SymbolicAddress imm, Register dest);
    void movePtr(ImmGCPtr imm, Register dest);

    void load8SignExtend(const Address& address, Register dest);
    void load8SignExtend(const BaseIndex& src, Register dest);

    void load8ZeroExtend(const Address& address, Register dest);
    void load8ZeroExtend(const BaseIndex& src, Register dest);

    void load16SignExtend(const Address& address, Register dest);
    void load16SignExtend(const BaseIndex& src, Register dest);

    void load16ZeroExtend(const Address& address, Register dest);
    void load16ZeroExtend(const BaseIndex& src, Register dest);

    void load32(const Address& address, Register dest);
    void load32(const BaseIndex& address, Register dest);
    void load32(AbsoluteAddress address, Register dest);
    void load32(wasm::SymbolicAddress address, Register dest);
    void load64(const Address& address, Register64 dest) {
        loadPtr(address, dest.reg);
    }

    void loadPtr(const Address& address, Register dest);
    void loadPtr(const BaseIndex& src, Register dest);
    void loadPtr(AbsoluteAddress address, Register dest);
    void loadPtr(wasm::SymbolicAddress address, Register dest);

    void loadPrivate(const Address& address, Register dest);

    void loadInt32x1(const Address& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void loadInt32x1(const BaseIndex& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void loadInt32x2(const Address& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void loadInt32x2(const BaseIndex& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void loadInt32x3(const Address& src, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void loadInt32x3(const BaseIndex& src, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void storeInt32x1(FloatRegister src, const Address& dest) { MOZ_CRASH("NYI"); }
    void storeInt32x1(FloatRegister src, const BaseIndex& dest) { MOZ_CRASH("NYI"); }
    void storeInt32x2(FloatRegister src, const Address& dest) { MOZ_CRASH("NYI"); }
    void storeInt32x2(FloatRegister src, const BaseIndex& dest) { MOZ_CRASH("NYI"); }
    void storeInt32x3(FloatRegister src, const Address& dest) { MOZ_CRASH("NYI"); }
    void storeInt32x3(FloatRegister src, const BaseIndex& dest) { MOZ_CRASH("NYI"); }
    void loadAlignedSimd128Int(const Address& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void storeAlignedSimd128Int(FloatRegister src, Address addr) { MOZ_CRASH("NYI"); }
    void loadUnalignedSimd128Int(const Address& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void loadUnalignedSimd128Int(const BaseIndex& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void storeUnalignedSimd128Int(FloatRegister src, Address addr) { MOZ_CRASH("NYI"); }
    void storeUnalignedSimd128Int(FloatRegister src, BaseIndex addr) { MOZ_CRASH("NYI"); }

    void loadFloat32x3(const Address& src, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void loadFloat32x3(const BaseIndex& src, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void loadAlignedSimd128Float(const Address& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void storeAlignedSimd128Float(FloatRegister src, Address addr) { MOZ_CRASH("NYI"); }
    void loadUnalignedSimd128Float(const Address& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void loadUnalignedSimd128Float(const BaseIndex& addr, FloatRegister dest) { MOZ_CRASH("NYI"); }
    void storeUnalignedSimd128Float(FloatRegister src, Address addr) { MOZ_CRASH("NYI"); }
    void storeUnalignedSimd128Float(FloatRegister src, BaseIndex addr) { MOZ_CRASH("NYI"); }

    void loadDouble(const Address& addr, FloatRegister dest);
    void loadDouble(const BaseIndex& src, FloatRegister dest);
    void loadUnalignedDouble(const wasm::MemoryAccessDesc& access, const BaseIndex& src,
                             Register temp, FloatRegister dest);

    // Load a float value into a register, then expand it to a double.
    void loadFloatAsDouble(const Address& addr, FloatRegister dest);
    void loadFloatAsDouble(const BaseIndex& src, FloatRegister dest);

    void loadFloat32(const Address& addr, FloatRegister dest);
    void loadFloat32(const BaseIndex& src, FloatRegister dest);
    void loadUnalignedFloat32(const wasm::MemoryAccessDesc& access, const BaseIndex& src,
                              Register temp, FloatRegister dest);

    void store8(Register src, const Address& address);
    void store8(Imm32 imm, const Address& address);
    void store8(Register src, const BaseIndex& address);
    void store8(Imm32 imm, const BaseIndex& address);

    void store16(Register src, const Address& address);
    void store16(Imm32 imm, const Address& address);
    void store16(Register src, const BaseIndex& address);
    void store16(Imm32 imm, const BaseIndex& address);

    void store32(Register src, AbsoluteAddress address);
    void store32(Register src, const Address& address);
    void store32(Register src, const BaseIndex& address);
    void store32(Imm32 src, const Address& address);
    void store32(Imm32 src, const BaseIndex& address);

    // NOTE: This will use second scratch on MIPS64. Only ARM needs the
    // implementation without second scratch.
    void store32_NoSecondScratch(Imm32 src, const Address& address) {
        store32(src, address);
    }

    void store64(Imm64 imm, Address address) {
        storePtr(ImmWord(imm.value), address);
    }

    void store64(Register64 src, Address address) {
        storePtr(src.reg, address);
    }

    template <typename T> void storePtr(ImmWord imm, T address);
    template <typename T> void storePtr(ImmPtr imm, T address);
    template <typename T> void storePtr(ImmGCPtr imm, T address);
    void storePtr(Register src, const Address& address);
    void storePtr(Register src, const BaseIndex& address);
    void storePtr(Register src, AbsoluteAddress dest);

    void storeUnalignedFloat32(const wasm::MemoryAccessDesc& access, FloatRegister src,
                               Register temp, const BaseIndex& dest);
    void storeUnalignedDouble(const wasm::MemoryAccessDesc& access, FloatRegister src,
                              Register temp, const BaseIndex& dest);

    void moveDouble(FloatRegister src, FloatRegister dest) {
        as_movd(dest, src);
    }

    void zeroDouble(FloatRegister reg) {
        moveToDouble(zero, reg);
    }

    void convertInt64ToDouble(Register src, FloatRegister dest);
    void convertInt64ToFloat32(Register src, FloatRegister dest);

    void convertUInt64ToDouble(Register src, FloatRegister dest);
    void convertUInt64ToFloat32(Register src, FloatRegister dest);

    static bool convertUInt64ToDoubleNeedsTemp();
    void convertUInt64ToDouble(Register64 src, FloatRegister dest, Register temp);

    void breakpoint();

    void checkStackAlignment();

    static void calculateAlignedStackPointer(void** stackPointer);

    // If source is a double, load it into dest. If source is int32,
    // convert it to double. Else, branch to failure.
    void ensureDouble(const ValueOperand& source, FloatRegister dest, Label* failure);

    void cmpPtrSet(Assembler::Condition cond, Address lhs, ImmPtr rhs, Register dest);
    void cmpPtrSet(Assembler::Condition cond, Register lhs, Address rhs, Register dest);

    void cmp32Set(Assembler::Condition cond, Register lhs, Address rhs, Register dest);

    void cmp64Set(Assembler::Condition cond, Register lhs, Imm32 rhs, Register dest)
    {
        ma_cmp_set(dest, lhs, rhs, cond);
    }

  protected:
    bool buildOOLFakeExitFrame(void* fakeReturnAddr);

  public:
    CodeOffset labelForPatch() {
        return CodeOffset(nextOffset().getOffset());
    }

    void lea(Operand addr, Register dest) {
        ma_daddu(dest, addr.baseReg(), Imm32(addr.disp()));
    }

    void abiret() {
        as_jr(ra);
        as_nop();
    }

    void moveFloat32(FloatRegister src, FloatRegister dest) {
        as_movs(dest, src);
    }

    void loadWasmGlobalPtr(uint32_t globalDataOffset, Register dest) {
        loadPtr(Address(GlobalReg, globalDataOffset - WasmGlobalRegBias), dest);
    }
    void loadWasmPinnedRegsFromTls() {
        loadPtr(Address(WasmTlsReg, offsetof(wasm::TlsData, memoryBase)), HeapReg);
        loadPtr(Address(WasmTlsReg, offsetof(wasm::TlsData, globalData)), GlobalReg);
        ma_daddu(GlobalReg, Imm32(WasmGlobalRegBias));
    }

    // Instrumentation for entering and leaving the profiler.
    void profilerEnterFrame(Register framePtr, Register scratch);
    void profilerExitFrame();
};

typedef MacroAssemblerMIPS64Compat MacroAssemblerSpecific;

} // namespace jit
} // namespace js

#endif /* jit_mips64_MacroAssembler_mips64_h */