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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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7648 : StringCharacterStreamCompare(isolate->runtime_state(), x, y); | 7648 : StringCharacterStreamCompare(isolate->runtime_state(), x, y); |
7649 } | 7649 } |
7650 | 7650 |
7651 | 7651 |
7652 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_acos) { | 7652 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_acos) { |
7653 SealHandleScope shs(isolate); | 7653 SealHandleScope shs(isolate); |
7654 ASSERT(args.length() == 1); | 7654 ASSERT(args.length() == 1); |
7655 isolate->counters()->math_acos()->Increment(); | 7655 isolate->counters()->math_acos()->Increment(); |
7656 | 7656 |
7657 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | 7657 CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
7658 return isolate->transcendental_cache()->Get(TranscendentalCache::ACOS, x); | 7658 return isolate->heap()->AllocateHeapNumber(acos(x)); |
7659 } | 7659 } |
7660 | 7660 |
7661 | 7661 |
7662 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_asin) { | 7662 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_asin) { |
7663 SealHandleScope shs(isolate); | 7663 SealHandleScope shs(isolate); |
7664 ASSERT(args.length() == 1); | 7664 ASSERT(args.length() == 1); |
7665 isolate->counters()->math_asin()->Increment(); | 7665 isolate->counters()->math_asin()->Increment(); |
7666 | 7666 |
7667 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | 7667 CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
7668 return isolate->transcendental_cache()->Get(TranscendentalCache::ASIN, x); | 7668 return isolate->heap()->AllocateHeapNumber(asin(x)); |
7669 } | 7669 } |
7670 | 7670 |
7671 | 7671 |
7672 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_atan) { | 7672 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_atan) { |
7673 SealHandleScope shs(isolate); | 7673 SealHandleScope shs(isolate); |
7674 ASSERT(args.length() == 1); | 7674 ASSERT(args.length() == 1); |
7675 isolate->counters()->math_atan()->Increment(); | 7675 isolate->counters()->math_atan()->Increment(); |
7676 | 7676 |
7677 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | 7677 CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
7678 return isolate->transcendental_cache()->Get(TranscendentalCache::ATAN, x); | 7678 return isolate->heap()->AllocateHeapNumber(atan(x)); |
7679 } | 7679 } |
7680 | 7680 |
7681 | 7681 |
7682 static const double kPiDividedBy4 = 0.78539816339744830962; | 7682 static const double kPiDividedBy4 = 0.78539816339744830962; |
7683 | 7683 |
7684 | 7684 |
7685 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_atan2) { | 7685 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_atan2) { |
7686 SealHandleScope shs(isolate); | 7686 SealHandleScope shs(isolate); |
7687 ASSERT(args.length() == 2); | 7687 ASSERT(args.length() == 2); |
7688 isolate->counters()->math_atan2()->Increment(); | 7688 isolate->counters()->math_atan2()->Increment(); |
7689 | 7689 |
7690 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | 7690 CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
7691 CONVERT_DOUBLE_ARG_CHECKED(y, 1); | 7691 CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
7692 double result; | 7692 double result; |
7693 if (std::isinf(x) && std::isinf(y)) { | 7693 if (std::isinf(x) && std::isinf(y)) { |
7694 // Make sure that the result in case of two infinite arguments | 7694 // Make sure that the result in case of two infinite arguments |
7695 // is a multiple of Pi / 4. The sign of the result is determined | 7695 // is a multiple of Pi / 4. The sign of the result is determined |
7696 // by the first argument (x) and the sign of the second argument | 7696 // by the first argument (x) and the sign of the second argument |
7697 // determines the multiplier: one or three. | 7697 // determines the multiplier: one or three. |
7698 int multiplier = (x < 0) ? -1 : 1; | 7698 int multiplier = (x < 0) ? -1 : 1; |
7699 if (y < 0) multiplier *= 3; | 7699 if (y < 0) multiplier *= 3; |
7700 result = multiplier * kPiDividedBy4; | 7700 result = multiplier * kPiDividedBy4; |
7701 } else { | 7701 } else { |
7702 result = atan2(x, y); | 7702 result = atan2(x, y); |
7703 } | 7703 } |
7704 return isolate->heap()->AllocateHeapNumber(result); | 7704 return isolate->heap()->AllocateHeapNumber(result); |
7705 } | 7705 } |
7706 | 7706 |
7707 | 7707 |
7708 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_cos) { | |
7709 SealHandleScope shs(isolate); | |
7710 ASSERT(args.length() == 1); | |
7711 isolate->counters()->math_cos()->Increment(); | |
7712 | |
7713 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | |
7714 return isolate->transcendental_cache()->Get(TranscendentalCache::COS, x); | |
7715 } | |
7716 | |
7717 | |
7718 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_exp) { | 7708 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_exp) { |
7719 SealHandleScope shs(isolate); | 7709 SealHandleScope shs(isolate); |
7720 ASSERT(args.length() == 1); | 7710 ASSERT(args.length() == 1); |
7721 isolate->counters()->math_exp()->Increment(); | 7711 isolate->counters()->math_exp()->Increment(); |
7722 | 7712 |
7723 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | 7713 CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
7724 lazily_initialize_fast_exp(); | 7714 lazily_initialize_fast_exp(); |
7725 return isolate->heap()->NumberFromDouble(fast_exp(x)); | 7715 return isolate->heap()->NumberFromDouble(fast_exp(x)); |
7726 } | 7716 } |
7727 | 7717 |
7728 | 7718 |
7729 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_floor) { | 7719 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_floor) { |
7730 SealHandleScope shs(isolate); | 7720 SealHandleScope shs(isolate); |
7731 ASSERT(args.length() == 1); | 7721 ASSERT(args.length() == 1); |
7732 isolate->counters()->math_floor()->Increment(); | 7722 isolate->counters()->math_floor()->Increment(); |
7733 | 7723 |
7734 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | 7724 CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
7735 return isolate->heap()->NumberFromDouble(floor(x)); | 7725 return isolate->heap()->NumberFromDouble(floor(x)); |
7736 } | 7726 } |
7737 | 7727 |
7738 | 7728 |
7739 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_log) { | 7729 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_log) { |
7740 SealHandleScope shs(isolate); | 7730 SealHandleScope shs(isolate); |
7741 ASSERT(args.length() == 1); | 7731 ASSERT(args.length() == 1); |
7742 isolate->counters()->math_log()->Increment(); | 7732 isolate->counters()->math_log()->Increment(); |
7743 | 7733 |
7744 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | 7734 CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
7745 return isolate->transcendental_cache()->Get(TranscendentalCache::LOG, x); | 7735 return isolate->heap()->AllocateHeapNumber(fast_log(x)); |
7746 } | 7736 } |
7747 | 7737 |
7748 | 7738 |
7749 // Slow version of Math.pow. We check for fast paths for special cases. | 7739 // Slow version of Math.pow. We check for fast paths for special cases. |
7750 // Used if SSE2/VFP3 is not available. | 7740 // Used if SSE2/VFP3 is not available. |
7751 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_pow) { | 7741 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_pow) { |
7752 SealHandleScope shs(isolate); | 7742 SealHandleScope shs(isolate); |
7753 ASSERT(args.length() == 2); | 7743 ASSERT(args.length() == 2); |
7754 isolate->counters()->math_pow()->Increment(); | 7744 isolate->counters()->math_pow()->Increment(); |
7755 | 7745 |
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7824 return number; | 7814 return number; |
7825 } | 7815 } |
7826 | 7816 |
7827 if (sign && value >= -0.5) return isolate->heap()->minus_zero_value(); | 7817 if (sign && value >= -0.5) return isolate->heap()->minus_zero_value(); |
7828 | 7818 |
7829 // Do not call NumberFromDouble() to avoid extra checks. | 7819 // Do not call NumberFromDouble() to avoid extra checks. |
7830 return isolate->heap()->AllocateHeapNumber(floor(value + 0.5)); | 7820 return isolate->heap()->AllocateHeapNumber(floor(value + 0.5)); |
7831 } | 7821 } |
7832 | 7822 |
7833 | 7823 |
7834 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_sin) { | |
7835 SealHandleScope shs(isolate); | |
7836 ASSERT(args.length() == 1); | |
7837 isolate->counters()->math_sin()->Increment(); | |
7838 | |
7839 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | |
7840 return isolate->transcendental_cache()->Get(TranscendentalCache::SIN, x); | |
7841 } | |
7842 | |
7843 | |
7844 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_sqrt) { | 7824 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_sqrt) { |
7845 SealHandleScope shs(isolate); | 7825 SealHandleScope shs(isolate); |
7846 ASSERT(args.length() == 1); | 7826 ASSERT(args.length() == 1); |
7847 isolate->counters()->math_sqrt()->Increment(); | 7827 isolate->counters()->math_sqrt()->Increment(); |
7848 | 7828 |
7849 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | 7829 CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
7850 return isolate->heap()->AllocateHeapNumber(fast_sqrt(x)); | 7830 return isolate->heap()->AllocateHeapNumber(fast_sqrt(x)); |
7851 } | 7831 } |
7852 | 7832 |
7853 | 7833 |
7854 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_tan) { | |
7855 SealHandleScope shs(isolate); | |
7856 ASSERT(args.length() == 1); | |
7857 isolate->counters()->math_tan()->Increment(); | |
7858 | |
7859 CONVERT_DOUBLE_ARG_CHECKED(x, 0); | |
7860 return isolate->transcendental_cache()->Get(TranscendentalCache::TAN, x); | |
7861 } | |
7862 | |
7863 | |
7864 RUNTIME_FUNCTION(MaybeObject*, Runtime_DateMakeDay) { | 7834 RUNTIME_FUNCTION(MaybeObject*, Runtime_DateMakeDay) { |
7865 SealHandleScope shs(isolate); | 7835 SealHandleScope shs(isolate); |
7866 ASSERT(args.length() == 2); | 7836 ASSERT(args.length() == 2); |
7867 | 7837 |
7868 CONVERT_SMI_ARG_CHECKED(year, 0); | 7838 CONVERT_SMI_ARG_CHECKED(year, 0); |
7869 CONVERT_SMI_ARG_CHECKED(month, 1); | 7839 CONVERT_SMI_ARG_CHECKED(month, 1); |
7870 | 7840 |
7871 return Smi::FromInt(isolate->date_cache()->DaysFromYearMonth(year, month)); | 7841 return Smi::FromInt(isolate->date_cache()->DaysFromYearMonth(year, month)); |
7872 } | 7842 } |
7873 | 7843 |
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14915 // Handle last resort GC and make sure to allow future allocations | 14885 // Handle last resort GC and make sure to allow future allocations |
14916 // to grow the heap without causing GCs (if possible). | 14886 // to grow the heap without causing GCs (if possible). |
14917 isolate->counters()->gc_last_resort_from_js()->Increment(); | 14887 isolate->counters()->gc_last_resort_from_js()->Increment(); |
14918 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 14888 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
14919 "Runtime::PerformGC"); | 14889 "Runtime::PerformGC"); |
14920 } | 14890 } |
14921 } | 14891 } |
14922 | 14892 |
14923 | 14893 |
14924 } } // namespace v8::internal | 14894 } } // namespace v8::internal |
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