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Side by Side Diff: src/mips/constants-mips.h

Issue 783913003: Make cpplint happy. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 6 years ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef V8_MIPS_CONSTANTS_H_ 5 #ifndef V8_MIPS_CONSTANTS_H_
6 #define V8_MIPS_CONSTANTS_H_ 6 #define V8_MIPS_CONSTANTS_H_
7 #include "src/globals.h" 7 #include "src/globals.h"
8 // UNIMPLEMENTED_ macro for MIPS. 8 // UNIMPLEMENTED_ macro for MIPS.
9 #ifdef DEBUG 9 #ifdef DEBUG
10 #define UNIMPLEMENTED_MIPS() \ 10 #define UNIMPLEMENTED_MIPS() \
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553 }; 553 };
554 554
555 555
556 // ----- Emulated conditions. 556 // ----- Emulated conditions.
557 // On MIPS we use this enum to abstract from conditionnal branch instructions. 557 // On MIPS we use this enum to abstract from conditionnal branch instructions.
558 // The 'U' prefix is used to specify unsigned comparisons. 558 // The 'U' prefix is used to specify unsigned comparisons.
559 // Oppposite conditions must be paired as odd/even numbers 559 // Oppposite conditions must be paired as odd/even numbers
560 // because 'NegateCondition' function flips LSB to negate condition. 560 // because 'NegateCondition' function flips LSB to negate condition.
561 enum Condition { 561 enum Condition {
562 // Any value < 0 is considered no_condition. 562 // Any value < 0 is considered no_condition.
563 kNoCondition = -1, 563 kNoCondition = -1,
564 564 overflow = 0,
565 overflow = 0, 565 no_overflow = 1,
566 no_overflow = 1, 566 Uless = 2,
567 Uless = 2, 567 Ugreater_equal = 3,
568 Ugreater_equal= 3, 568 equal = 4,
569 equal = 4, 569 not_equal = 5,
570 not_equal = 5, 570 Uless_equal = 6,
571 Uless_equal = 6, 571 Ugreater = 7,
572 Ugreater = 7, 572 negative = 8,
573 negative = 8, 573 positive = 9,
574 positive = 9, 574 parity_even = 10,
575 parity_even = 10, 575 parity_odd = 11,
576 parity_odd = 11, 576 less = 12,
577 less = 12,
578 greater_equal = 13, 577 greater_equal = 13,
579 less_equal = 14, 578 less_equal = 14,
580 greater = 15, 579 greater = 15,
581 ueq = 16, // Unordered or Equal. 580 ueq = 16, // Unordered or Equal.
582 nue = 17, // Not (Unordered or Equal). 581 nue = 17, // Not (Unordered or Equal).
583 582 cc_always = 18,
584 cc_always = 18,
585 583
586 // Aliases. 584 // Aliases.
587 carry = Uless, 585 carry = Uless,
588 not_carry = Ugreater_equal, 586 not_carry = Ugreater_equal,
589 zero = equal, 587 zero = equal,
590 eq = equal, 588 eq = equal,
591 not_zero = not_equal, 589 not_zero = not_equal,
592 ne = not_equal, 590 ne = not_equal,
593 nz = not_equal, 591 nz = not_equal,
594 sign = negative, 592 sign = negative,
595 not_sign = positive, 593 not_sign = positive,
596 mi = negative, 594 mi = negative,
597 pl = positive, 595 pl = positive,
598 hi = Ugreater, 596 hi = Ugreater,
599 ls = Uless_equal, 597 ls = Uless_equal,
600 ge = greater_equal, 598 ge = greater_equal,
601 lt = less, 599 lt = less,
602 gt = greater, 600 gt = greater,
603 le = less_equal, 601 le = less_equal,
604 hs = Ugreater_equal, 602 hs = Ugreater_equal,
605 lo = Uless, 603 lo = Uless,
606 al = cc_always, 604 al = cc_always,
607 605 cc_default = kNoCondition
608 cc_default = kNoCondition
609 }; 606 };
610 607
611 608
612 // Returns the equivalent of !cc. 609 // Returns the equivalent of !cc.
613 // Negation of the default kNoCondition (-1) results in a non-default 610 // Negation of the default kNoCondition (-1) results in a non-default
614 // no_condition value (-2). As long as tests for no_condition check 611 // no_condition value (-2). As long as tests for no_condition check
615 // for condition < 0, this will work as expected. 612 // for condition < 0, this will work as expected.
616 inline Condition NegateCondition(Condition cc) { 613 inline Condition NegateCondition(Condition cc) {
617 DCHECK(cc != cc_always); 614 DCHECK(cc != cc_always);
618 return static_cast<Condition>(cc ^ 1); 615 return static_cast<Condition>(cc ^ 1);
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930 // JS argument slots size. 927 // JS argument slots size.
931 const int kJSArgsSlotsSize = 0 * Instruction::kInstrSize; 928 const int kJSArgsSlotsSize = 0 * Instruction::kInstrSize;
932 // Assembly builtins argument slots size. 929 // Assembly builtins argument slots size.
933 const int kBArgsSlotsSize = 0 * Instruction::kInstrSize; 930 const int kBArgsSlotsSize = 0 * Instruction::kInstrSize;
934 931
935 const int kBranchReturnOffset = 2 * Instruction::kInstrSize; 932 const int kBranchReturnOffset = 2 * Instruction::kInstrSize;
936 933
937 } } // namespace v8::internal 934 } } // namespace v8::internal
938 935
939 #endif // #ifndef V8_MIPS_CONSTANTS_H_ 936 #endif // #ifndef V8_MIPS_CONSTANTS_H_
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