AliasAnalysis: improve the may-decrement-ref-count check for builtins. #4573
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This helps the ARC optimizations to eliminate retain-release pairs across the "destroyArray" builtin.
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@swift-ci Please smoke test |
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@swift-ci Please benchmark |
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@swift-ci Please smoke test |
Build comment file:Optimized (O)
|
| TEST | OLD_MIN | NEW_MIN | DELTA (%) | SPEEDUP |
|---|---|---|---|---|
| ObjectiveCBridgeFromNSArrayAnyObjectToStringForced | 101312 | 95355 | -5.9% | 1.06x |
| ObjectiveCBridgeStubFromArrayOfNSString | 65868 | 62383 | -5.3% | 1.06x(?) |
| ClassArrayGetter | 13 | 12 | -7.7% | 1.08x(?) |
| ObjectiveCBridgeFromNSSetAnyObjectToString | 171540 | 159480 | -7.0% | 1.08x(?) |
No Changes (132)
| TEST | OLD_MIN | NEW_MIN | DELTA (%) | SPEEDUP |
|---|---|---|---|---|
| ObjectiveCBridgeFromNSArrayAnyObjectToString | 127347 | 124072 | -2.6% | 1.03x(?) |
| ObjectiveCBridgeStubURLAppendPathRef | 245993 | 239610 | -2.6% | 1.03x(?) |
| ErrorHandling | 2969 | 2922 | -1.6% | 1.02x(?) |
| ObjectiveCBridgeFromNSArrayAnyObject | 84291 | 82564 | -2.0% | 1.02x(?) |
| 135 | 3320148 | 3278904 | -1.2% | 1.01x |
| DictionaryBridge | 4105 | 4080 | -0.6% | 1.01x(?) |
| RangeAssignment | 327 | 324 | -0.9% | 1.01x(?) |
| ObjectAllocation | 153 | 152 | -0.7% | 1.01x(?) |
| ObjectiveCBridgeFromNSSetAnyObject | 313216 | 309723 | -1.1% | 1.01x(?) |
| ObjectiveCBridgeStubToArrayOfNSString | 31036 | 30780 | -0.8% | 1.01x(?) |
| ObjectiveCBridgeToNSDictionary | 18006 | 17796 | -1.2% | 1.01x(?) |
| DictionaryRemove | 5130 | 5084 | -0.9% | 1.01x(?) |
| NSStringConversion | 872 | 865 | -0.8% | 1.01x(?) |
| ArraySubscript | 1431 | 1435 | +0.3% | 1.00x(?) |
| ObjectiveCBridgeToNSString | 1070 | 1067 | -0.3% | 1.00x |
| DictionarySwapOfObjects | 6858 | 6873 | +0.2% | 1.00x(?) |
| StackPromo | 19875 | 19875 | +0.0% | 1.00x |
| RecursiveOwnedParameter | 1938 | 1937 | -0.1% | 1.00x(?) |
| ObjectiveCBridgeStubToNSString | 1282 | 1283 | +0.1% | 1.00x(?) |
| Array2D | 1967 | 1961 | -0.3% | 1.00x(?) |
| Histogram | 683 | 682 | -0.1% | 1.00x(?) |
| SortStrings | 1765 | 1766 | +0.1% | 1.00x(?) |
| ObjectiveCBridgeFromNSDictionaryAnyObjectForced | 5144 | 5148 | +0.1% | 1.00x(?) |
| ObjectiveCBridgeStubFromNSDateRef | 3688 | 3687 | -0.0% | 1.00x |
| MonteCarloPi | 45040 | 45021 | -0.0% | 1.00x(?) |
| StringWithCString | 153112 | 152957 | -0.1% | 1.00x(?) |
| ObjectiveCBridgeFromNSArrayAnyObjectForced | 6947 | 6916 | -0.5% | 1.00x(?) |
| ObjectiveCBridgeFromNSStringForced | 2645 | 2642 | -0.1% | 1.00x(?) |
| Prims | 793 | 796 | +0.4% | 1.00x(?) |
| SortLettersInPlace | 1001 | 1005 | +0.4% | 1.00x |
| DictionarySwap | 785 | 786 | +0.1% | 1.00x(?) |
| ObjectiveCBridgeFromNSString | 1835 | 1837 | +0.1% | 1.00x(?) |
| PopFrontArray | 1139 | 1135 | -0.3% | 1.00x |
| ArrayOfGenericPOD | 220 | 220 | +0.0% | 1.00x |
| Dictionary3OfObjects | 899 | 901 | +0.2% | 1.00x(?) |
| StringHasPrefix | 648 | 647 | -0.1% | 1.00x(?) |
| ByteSwap | 1 | 1 | +0.0% | 1.00x |
| SuperChars | 214498 | 214682 | +0.1% | 1.00x(?) |
| XorLoop | 381 | 380 | -0.3% | 1.00x |
| Integrate | 238 | 238 | +0.0% | 1.00x |
| ObjectiveCBridgeStubFromNSString | 850 | 850 | +0.0% | 1.00x |
| ProtocolDispatch | 3040 | 3040 | +0.0% | 1.00x |
| TypeFlood | 0 | 0 | +0.0% | 1.00x |
| ArrayLiteral | 1025 | 1026 | +0.1% | 1.00x(?) |
| ProtocolDispatch2 | 156 | 156 | +0.0% | 1.00x |
| Walsh | 343 | 343 | +0.0% | 1.00x |
| Dictionary3 | 537 | 537 | +0.0% | 1.00x |
| Dictionary2 | 2098 | 2097 | -0.1% | 1.00x(?) |
| StrComplexWalk | 2920 | 2929 | +0.3% | 1.00x(?) |
| SetIntersect_OfObjects | 2413 | 2410 | -0.1% | 1.00x(?) |
| Join | 463 | 465 | +0.4% | 1.00x(?) |
| ArrayOfRef | 3534 | 3548 | +0.4% | 1.00x(?) |
| ObjectiveCBridgeStubDateMutation | 273 | 273 | +0.0% | 1.00x |
| DictionaryOfObjects | 2364 | 2360 | -0.2% | 1.00x(?) |
| PopFrontArrayGeneric | 1135 | 1138 | +0.3% | 1.00x(?) |
| StringEqualPointerComparison | 7272 | 7267 | -0.1% | 1.00x(?) |
| CaptureProp | 4315 | 4314 | -0.0% | 1.00x(?) |
| PolymorphicCalls | 15 | 15 | +0.0% | 1.00x |
| RC4 | 266 | 266 | +0.0% | 1.00x |
| Calculator | 35 | 35 | +0.0% | 1.00x |
| MapReduce | 374 | 374 | +0.0% | 1.00x |
| AngryPhonebook | 2840 | 2840 | +0.0% | 1.00x |
| IterateData | 2546 | 2547 | +0.0% | 1.00x(?) |
| Hanoi | 3430 | 3427 | -0.1% | 1.00x(?) |
| OpenClose | 51 | 51 | +0.0% | 1.00x |
| DictionaryRemoveOfObjects | 20650 | 20622 | -0.1% | 1.00x |
| UTF8Decode | 323 | 323 | +0.0% | 1.00x |
| SortStringsUnicode | 7937 | 7946 | +0.1% | 1.00x(?) |
| SetIsSubsetOf | 515 | 515 | +0.0% | 1.00x |
| Dictionary | 797 | 797 | +0.0% | 1.00x |
| NopDeinit | 36657 | 36645 | -0.0% | 1.00x(?) |
| SetIntersect | 1184 | 1188 | +0.3% | 1.00x(?) |
| SetExclusiveOr | 3938 | 3939 | +0.0% | 1.00x(?) |
| NSDictionaryCastToSwift | 13762 | 13712 | -0.4% | 1.00x(?) |
| RGBHistogramOfObjects | 22489 | 22483 | -0.0% | 1.00x(?) |
| ObjectiveCBridgeStubNSDateRefAccess | 338 | 338 | +0.0% | 1.00x |
| StrToInt | 5022 | 5024 | +0.0% | 1.00x(?) |
| ArrayOfGenericRef | 3619 | 3612 | -0.2% | 1.00x(?) |
| StringHasSuffix | 677 | 677 | +0.0% | 1.00x |
| Phonebook | 7137 | 7135 | -0.0% | 1.00x(?) |
| ObjectiveCBridgeStubDateAccess | 182 | 182 | +0.0% | 1.00x |
| Sim2DArray | 436 | 436 | +0.0% | 1.00x |
| SetExclusiveOr_OfObjects | 8548 | 8556 | +0.1% | 1.00x(?) |
| MonteCarloE | 10484 | 10478 | -0.1% | 1.00x(?) |
| SetUnion_OfObjects | 7169 | 7146 | -0.3% | 1.00x |
| StringHasSuffixUnicode | 63399 | 63446 | +0.1% | 1.00x(?) |
| HashTest | 1741 | 1741 | +0.0% | 1.00x |
| ArrayAppend | 772 | 774 | +0.3% | 1.00x(?) |
| StringHasPrefixUnicode | 14506 | 14504 | -0.0% | 1.00x(?) |
| LinkedList | 7211 | 7207 | -0.1% | 1.00x(?) |
| RGBHistogram | 3188 | 3173 | -0.5% | 1.00x(?) |
| ArrayValueProp4 | 6 | 6 | +0.0% | 1.00x |
| ArrayOfPOD | 182 | 182 | +0.0% | 1.00x |
| SetUnion | 2770 | 2762 | -0.3% | 1.00x(?) |
| Chars | 605 | 605 | +0.0% | 1.00x |
| StringBuilder | 1316 | 1315 | -0.1% | 1.00x(?) |
| DeadArray | 185 | 185 | +0.0% | 1.00x |
| ArrayValueProp2 | 6 | 6 | +0.0% | 1.00x |
| BitCount | 1 | 1 | +0.0% | 1.00x |
| SevenBoom | 1377 | 1379 | +0.1% | 1.00x(?) |
| StringWalk | 5870 | 5869 | -0.0% | 1.00x(?) |
| ArrayValueProp | 6 | 6 | +0.0% | 1.00x |
| GlobalClass | 0 | 0 | +0.0% | 1.00x |
| Memset | 235 | 235 | +0.0% | 1.00x |
| Dictionary2OfObjects | 3513 | 3499 | -0.4% | 1.00x(?) |
| ArrayAppendReserved | 537 | 537 | +0.0% | 1.00x |
| ArrayValueProp3 | 6 | 6 | +0.0% | 1.00x |
| ObjectiveCBridgeStubFromNSDate | 3761 | 3767 | +0.2% | 1.00x(?) |
| ObjectiveCBridgeFromNSDictionaryAnyObject | 256874 | 259159 | +0.9% | 0.99x(?) |
| ObjectiveCBridgeFromNSDictionaryAnyObjectToString | 234838 | 237306 | +1.1% | 0.99x(?) |
| ObjectiveCBridgeStubToNSDate | 13188 | 13368 | +1.4% | 0.99x(?) |
| StringInterpolation | 10717 | 10805 | +0.8% | 0.99x(?) |
| ObjectiveCBridgeStubFromNSStringRef | 132 | 134 | +1.5% | 0.99x(?) |
| StaticArray | 2801 | 2816 | +0.5% | 0.99x(?) |
| ObjectiveCBridgeToNSSet | 16618 | 16791 | +1.0% | 0.99x(?) |
| ObjectiveCBridgeToNSArray | 31798 | 32268 | +1.5% | 0.99x(?) |
| NSError | 339 | 341 | +0.6% | 0.99x(?) |
| ObjectiveCBridgeStubToNSDateRef | 3441 | 3466 | +0.7% | 0.99x(?) |
| PopFrontUnsafePointer | 9145 | 9199 | +0.6% | 0.99x(?) |
| ObjectiveCBridgeStubToNSStringRef | 124 | 125 | +0.8% | 0.99x |
| ObjectiveCBridgeFromNSDictionaryAnyObjectToStringForced | 158122 | 159705 | +1.0% | 0.99x(?) |
| ObjectiveCBridgeStubDataAppend | 2938 | 2962 | +0.8% | 0.99x |
| ArrayInClass | 86 | 87 | +1.2% | 0.99x(?) |
| ObjectiveCBridgeFromNSSetAnyObjectForced | 4277 | 4309 | +0.8% | 0.99x |
| TwoSum | 1946 | 1958 | +0.6% | 0.99x(?) |
| ObjectiveCBridgeStubNSDataAppend | 2417 | 2445 | +1.2% | 0.99x |
| DictionaryLiteral | 4650 | 4748 | +2.1% | 0.98x(?) |
| SetIsSubsetOf_OfObjects | 511 | 521 | +2.0% | 0.98x |
| AnyHashableWithAClass | 66801 | 68334 | +2.3% | 0.98x(?) |
| ObjectiveCBridgeStubNSDateMutationRef | 12013 | 12344 | +2.8% | 0.97x(?) |
| ObjectiveCBridgeFromNSSetAnyObjectToStringForced | 120202 | 125854 | +4.7% | 0.96x(?) |
| ObjectiveCBridgeStubURLAppendPath | 235181 | 248438 | +5.6% | 0.95x |
Regression (0)
Improvement (1)
| TEST | OLD_MIN | NEW_MIN | DELTA (%) | SPEEDUP |
|---|---|---|---|---|
| TypeFlood | 169 | 155 | -8.3% | 1.09x |
No Changes (135)
| TEST | OLD_MIN | NEW_MIN | DELTA (%) | SPEEDUP |
|---|---|---|---|---|
| ObjectiveCBridgeFromNSSetAnyObjectToStringForced | 143687 | 136571 | -5.0% | 1.05x(?) |
| ObjectiveCBridgeStubNSDateMutationRef | 14656 | 14075 | -4.0% | 1.04x(?) |
| MapReduce | 47668 | 46829 | -1.8% | 1.02x(?) |
| DictionaryLiteral | 25591 | 25176 | -1.6% | 1.02x(?) |
| Phonebook | 63337 | 61855 | -2.3% | 1.02x(?) |
| ObjectiveCBridgeFromNSSetAnyObjectToString | 181330 | 177662 | -2.0% | 1.02x(?) |
| StackPromo | 132099 | 131068 | -0.8% | 1.01x(?) |
| DictionarySwap | 10924 | 10859 | -0.6% | 1.01x(?) |
| PopFrontArray | 25133 | 24959 | -0.7% | 1.01x(?) |
| StaticArray | 27729 | 27433 | -1.1% | 1.01x |
| OpenClose | 462 | 458 | -0.9% | 1.01x(?) |
| ObjectiveCBridgeStubURLAppendPath | 243149 | 240042 | -1.3% | 1.01x(?) |
| ObjectiveCBridgeStubDataAppend | 3306 | 3280 | -0.8% | 1.01x(?) |
| LinkedList | 27925 | 27656 | -1.0% | 1.01x |
| StringBuilder | 2752 | 2727 | -0.9% | 1.01x(?) |
| DeadArray | 120802 | 119185 | -1.3% | 1.01x |
| StringHasSuffix | 1638 | 1622 | -1.0% | 1.01x(?) |
| Dictionary2OfObjects | 6965 | 6927 | -0.6% | 1.01x(?) |
| ArraySubscript | 5751 | 5758 | +0.1% | 1.00x(?) |
| ObjectiveCBridgeToNSString | 1108 | 1109 | +0.1% | 1.00x(?) |
| DictionarySwapOfObjects | 25727 | 25761 | +0.1% | 1.00x(?) |
| 135 | 5933501 | 5935728 | +0.0% | 1.00x |
| RecursiveOwnedParameter | 10620 | 10619 | -0.0% | 1.00x(?) |
| ObjectiveCBridgeStubToNSString | 1346 | 1346 | +0.0% | 1.00x |
| ObjectiveCBridgeFromNSDictionaryAnyObjectToString | 247497 | 247843 | +0.1% | 1.00x(?) |
| ClassArrayGetter | 1334 | 1333 | -0.1% | 1.00x(?) |
| Array2D | 843382 | 844143 | +0.1% | 1.00x |
| SortStrings | 2686 | 2685 | -0.0% | 1.00x(?) |
| DictionaryBridge | 4196 | 4181 | -0.4% | 1.00x(?) |
| ObjectiveCBridgeStubFromNSDateRef | 4074 | 4071 | -0.1% | 1.00x(?) |
| MonteCarloPi | 53565 | 53545 | -0.0% | 1.00x(?) |
| StringWithCString | 155767 | 155770 | +0.0% | 1.00x(?) |
| ObjectiveCBridgeFromNSStringForced | 3073 | 3078 | +0.2% | 1.00x |
| Prims | 15256 | 15210 | -0.3% | 1.00x |
| SortLettersInPlace | 2618 | 2620 | +0.1% | 1.00x(?) |
| Dictionary3OfObjects | 2685 | 2690 | +0.2% | 1.00x(?) |
| RangeAssignment | 24107 | 24140 | +0.1% | 1.00x(?) |
| StringHasPrefix | 1569 | 1568 | -0.1% | 1.00x(?) |
| ByteSwap | 10 | 10 | +0.0% | 1.00x |
| SuperChars | 264369 | 264238 | -0.1% | 1.00x(?) |
| XorLoop | 19645 | 19634 | -0.1% | 1.00x(?) |
| StringInterpolation | 15448 | 15490 | +0.3% | 1.00x(?) |
| Integrate | 361 | 361 | +0.0% | 1.00x |
| ObjectiveCBridgeStubFromNSString | 899 | 898 | -0.1% | 1.00x(?) |
| ProtocolDispatch | 5826 | 5824 | -0.0% | 1.00x(?) |
| ObjectAllocation | 556 | 555 | -0.2% | 1.00x(?) |
| ObjectiveCBridgeFromNSSetAnyObject | 326995 | 325603 | -0.4% | 1.00x(?) |
| ArrayLiteral | 1124 | 1124 | +0.0% | 1.00x |
| ProtocolDispatch2 | 440 | 441 | +0.2% | 1.00x |
| Walsh | 13043 | 13058 | +0.1% | 1.00x(?) |
| Dictionary3 | 2048 | 2048 | +0.0% | 1.00x |
| Dictionary2 | 5049 | 5052 | +0.1% | 1.00x(?) |
| StrComplexWalk | 7609 | 7627 | +0.2% | 1.00x(?) |
| SetIntersect_OfObjects | 20163 | 20190 | +0.1% | 1.00x(?) |
| Join | 1514 | 1513 | -0.1% | 1.00x(?) |
| ArrayOfRef | 9359 | 9365 | +0.1% | 1.00x(?) |
| ObjectiveCBridgeStubDateMutation | 517 | 516 | -0.2% | 1.00x |
| DictionaryOfObjects | 5577 | 5583 | +0.1% | 1.00x(?) |
| PopFrontArrayGeneric | 9821 | 9816 | -0.1% | 1.00x(?) |
| PopFrontUnsafePointer | 242850 | 242998 | +0.1% | 1.00x(?) |
| StringEqualPointerComparison | 9729 | 9742 | +0.1% | 1.00x(?) |
| CaptureProp | 115814 | 115792 | -0.0% | 1.00x(?) |
| PolymorphicCalls | 1134 | 1137 | +0.3% | 1.00x(?) |
| RC4 | 9067 | 9071 | +0.0% | 1.00x(?) |
| ObjectiveCBridgeStubToNSStringRef | 165 | 165 | +0.0% | 1.00x |
| Calculator | 917 | 917 | +0.0% | 1.00x |
| AngryPhonebook | 3028 | 3032 | +0.1% | 1.00x(?) |
| IterateData | 10634 | 10631 | -0.0% | 1.00x(?) |
| Hanoi | 20009 | 20005 | -0.0% | 1.00x(?) |
| ArrayOfGenericPOD | 3713 | 3711 | -0.1% | 1.00x(?) |
| DictionaryRemoveOfObjects | 62469 | 62517 | +0.1% | 1.00x(?) |
| UTF8Decode | 45109 | 45105 | -0.0% | 1.00x(?) |
| SortStringsUnicode | 9237 | 9240 | +0.0% | 1.00x(?) |
| SetIsSubsetOf | 3169 | 3164 | -0.2% | 1.00x(?) |
| Dictionary | 2720 | 2721 | +0.0% | 1.00x(?) |
| NopDeinit | 59699 | 59781 | +0.1% | 1.00x |
| SetIntersect | 20169 | 20165 | -0.0% | 1.00x(?) |
| SetExclusiveOr | 45784 | 45753 | -0.1% | 1.00x(?) |
| NSDictionaryCastToSwift | 15164 | 15232 | +0.5% | 1.00x(?) |
| RGBHistogramOfObjects | 103733 | 104030 | +0.3% | 1.00x(?) |
| ObjectiveCBridgeStubNSDateRefAccess | 1230 | 1228 | -0.2% | 1.00x(?) |
| StrToInt | 5351 | 5354 | +0.1% | 1.00x(?) |
| ArrayInClass | 3865 | 3866 | +0.0% | 1.00x(?) |
| ArrayOfGenericRef | 10018 | 10008 | -0.1% | 1.00x(?) |
| ObjectiveCBridgeStubDateAccess | 1128 | 1128 | +0.0% | 1.00x |
| Sim2DArray | 14624 | 14621 | -0.0% | 1.00x(?) |
| SetExclusiveOr_OfObjects | 66279 | 66243 | -0.1% | 1.00x(?) |
| MonteCarloE | 112794 | 112623 | -0.1% | 1.00x(?) |
| StringHasSuffixUnicode | 65024 | 64865 | -0.2% | 1.00x |
| HashTest | 5350 | 5360 | +0.2% | 1.00x(?) |
| SetIsSubsetOf_OfObjects | 3022 | 3020 | -0.1% | 1.00x(?) |
| ArrayAppend | 3684 | 3684 | +0.0% | 1.00x |
| StringHasPrefixUnicode | 15204 | 15180 | -0.2% | 1.00x(?) |
| NSStringConversion | 3025 | 3029 | +0.1% | 1.00x(?) |
| RGBHistogram | 52582 | 52489 | -0.2% | 1.00x(?) |
| ArrayValueProp4 | 2689 | 2685 | -0.1% | 1.00x(?) |
| ArrayOfPOD | 2452 | 2452 | +0.0% | 1.00x |
| SetUnion | 30925 | 30877 | -0.2% | 1.00x(?) |
| Chars | 5334 | 5332 | -0.0% | 1.00x(?) |
| ArrayValueProp2 | 2848 | 2845 | -0.1% | 1.00x(?) |
| BitCount | 91 | 91 | +0.0% | 1.00x |
| AnyHashableWithAClass | 76168 | 76168 | +0.0% | 1.00x |
| SevenBoom | 1531 | 1526 | -0.3% | 1.00x(?) |
| ObjectiveCBridgeFromNSArrayAnyObjectToStringForced | 99160 | 99194 | +0.0% | 1.00x(?) |
| ArrayValueProp | 2348 | 2353 | +0.2% | 1.00x(?) |
| ObjectiveCBridgeStubFromArrayOfNSString | 65285 | 65200 | -0.1% | 1.00x(?) |
| GlobalClass | 0 | 0 | +0.0% | 1.00x |
| Memset | 20665 | 20676 | +0.1% | 1.00x(?) |
| ArrayAppendReserved | 3301 | 3301 | +0.0% | 1.00x |
| TwoSum | 9286 | 9251 | -0.4% | 1.00x(?) |
| ArrayValueProp3 | 2748 | 2753 | +0.2% | 1.00x(?) |
| ObjectiveCBridgeStubFromNSDate | 3977 | 3967 | -0.2% | 1.00x |
| ObjectiveCBridgeFromNSDictionaryAnyObject | 258746 | 262090 | +1.3% | 0.99x(?) |
| Histogram | 13630 | 13730 | +0.7% | 0.99x(?) |
| ObjectiveCBridgeStubToNSDate | 14085 | 14289 | +1.4% | 0.99x(?) |
| ErrorHandling | 3701 | 3740 | +1.1% | 0.99x(?) |
| ObjectiveCBridgeStubFromNSStringRef | 170 | 172 | +1.2% | 0.99x(?) |
| ObjectiveCBridgeToNSArray | 31941 | 32179 | +0.8% | 0.99x(?) |
| ObjectiveCBridgeStubToNSDateRef | 3313 | 3334 | +0.6% | 0.99x(?) |
| ObjectiveCBridgeStubToArrayOfNSString | 30831 | 31014 | +0.6% | 0.99x(?) |
| ObjectiveCBridgeFromNSString | 5158 | 5196 | +0.7% | 0.99x(?) |
| ObjectiveCBridgeToNSDictionary | 18120 | 18381 | +1.4% | 0.99x(?) |
| SetUnion_OfObjects | 49432 | 49752 | +0.7% | 0.99x(?) |
| DictionaryRemove | 30763 | 30928 | +0.5% | 0.99x(?) |
| ObjectiveCBridgeFromNSSetAnyObjectForced | 7497 | 7566 | +0.9% | 0.99x(?) |
| ObjectiveCBridgeStubNSDataAppend | 2807 | 2832 | +0.9% | 0.99x(?) |
| ObjectiveCBridgeFromNSArrayAnyObjectToString | 126681 | 128611 | +1.5% | 0.98x(?) |
| ObjectiveCBridgeFromNSDictionaryAnyObjectForced | 7651 | 7826 | +2.3% | 0.98x(?) |
| ObjectiveCBridgeFromNSArrayAnyObjectForced | 11304 | 11624 | +2.8% | 0.97x(?) |
| ObjectiveCBridgeStubURLAppendPathRef | 237259 | 244301 | +3.0% | 0.97x(?) |
| ObjectiveCBridgeToNSSet | 16329 | 16755 | +2.6% | 0.97x(?) |
| NSError | 667 | 687 | +3.0% | 0.97x(?) |
| ObjectiveCBridgeFromNSArrayAnyObject | 82750 | 85145 | +2.9% | 0.97x(?) |
| ObjectiveCBridgeFromNSDictionaryAnyObjectToStringForced | 162273 | 168702 | +4.0% | 0.96x(?) |
| StringWalk | 22206 | 23339 | +5.1% | 0.95x(?) |
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This helps the ARC optimizations to eliminate retain-release pairs across the "destroyArray" builtin.