Bug 150902

Some clarification: This issue was found for the arrow function implementation where we're going to store "this" in an activation. We load this from the activation, and we end up killing the tdz check which obviously shouldn't happen (while inside a derived constructor).

Created attachment 264867 [details] Patch Later I will be add benchmark test result

Created attachment 264868 [details] Patch Later I will beadd benchmark test result

Warning: refusing to run CompressionBench because "CompressionBenchPath" isn't set in /Users/Developer/.run-jsc-benchmarks 7572/7572 Generating benchmark report at /Users/Developer/Projects/Webkit2/Fix_BeforeFix_SunSpiderLongSpiderV8SpiderOctaneKrakenJSRegress_MacBook-Pro-Skachkov-2_20151105_2205_report.txt And raw data at /Users/Developer/Projects/Webkit2/Fix_BeforeFix_SunSpiderLongSpiderV8SpiderOctaneKrakenJSRegress_MacBook-Pro-Skachkov-2_20151105_2205.json Benchmark report for SunSpider, LongSpider, V8Spider, Octane, Kraken, and JSRegress on MacBook-Pro-Skachkov-2 (MacBookPro8,1). VMs tested: "Fix" at /Users/Developer/Projects/Webkit2/WebKitBuild/dfg_fix/Release/jsc "BeforeFix" at /Users/Developer/Projects/Webkit2/WebKitBuild/before_dfg_fix/Release/jsc Collected 8 samples per benchmark/VM, with 8 VM invocations per benchmark. Ran 4 benchmark iterations, and measured the total time of those iterations, for each sample. Emitted a call to gc() between sample measurements. Used 4 benchmark iterations per VM invocation for warm-up. Used the jsc-specific preciseTime() function to get microsecond-level timing. Reporting benchmark execution times with 95% confidence intervals in milliseconds. Fix BeforeFix SunSpider: 3d-cube 60.3279+-5.2532 59.1193+-4.6053 might be 1.0204x faster 3d-morph 43.8007+-2.4074 42.3849+-1.4340 might be 1.0334x faster 3d-raytrace 66.8714+-2.0836 64.3316+-2.6115 might be 1.0395x faster access-binary-trees 26.7815+-2.0608 ? 27.0952+-2.6674 ? might be 1.0117x slower access-fannkuch 75.8468+-6.0539 ? 78.8735+-8.9021 ? might be 1.0399x slower access-nbody 20.8954+-2.0391 19.9958+-2.4055 might be 1.0450x faster access-nsieve 25.5906+-1.9051 23.6032+-0.9216 might be 1.0842x faster bitops-3bit-bits-in-byte 14.4923+-1.4270 13.7523+-1.7114 might be 1.0538x faster bitops-bits-in-byte 28.6466+-0.8659 ? 30.1053+-1.1481 ? might be 1.0509x slower bitops-bitwise-and 13.2881+-1.1913 ? 13.5633+-1.8152 ? might be 1.0207x slower bitops-nsieve-bits 30.4854+-1.6975 ? 32.5904+-3.5984 ? might be 1.0690x slower controlflow-recursive 38.4021+-2.2201 35.9990+-2.0585 might be 1.0668x faster crypto-aes 29.5605+-2.5721 28.0310+-2.3639 might be 1.0546x faster crypto-md5 29.1330+-2.4557 28.0482+-4.0846 might be 1.0387x faster crypto-sha1 33.5098+-3.4726 33.4431+-2.0538 date-format-tofte 66.3344+-5.7434 ? 68.3076+-8.6735 ? might be 1.0297x slower date-format-xparb 37.5168+-1.8415 35.5577+-1.2986 might be 1.0551x faster math-cordic 29.1978+-3.4406 29.0242+-1.2601 math-partial-sums 32.9702+-3.0456 31.2031+-0.8265 might be 1.0566x faster math-spectral-norm 19.3752+-0.9704 ? 19.3848+-1.1664 ? regexp-dna 39.2908+-2.8728 38.0215+-2.5909 might be 1.0334x faster string-base64 28.9547+-2.0301 28.3639+-2.3567 might be 1.0208x faster string-fasta 63.1025+-1.9794 ? 64.3282+-3.0530 ? might be 1.0194x slower string-tagcloud 51.1174+-2.2045 ? 51.4809+-3.2447 ? string-unpack-code 118.5112+-3.8094 117.5229+-5.0168 string-validate-input 38.3825+-2.4444 ? 38.7733+-2.1789 ? might be 1.0102x slower <arithmetic> 40.8610+-0.8655 40.4963+-0.9666 might be 1.0090x faster Fix BeforeFix LongSpider: 3d-cube 4936.9534+-42.2698 ? 4955.0228+-43.6803 ? 3d-morph 7953.8007+-43.5699 ? 7964.1966+-34.1599 ? 3d-raytrace 3985.0371+-43.8246 3965.7482+-45.5494 access-binary-trees 5551.9198+-55.7057 ? 5560.9614+-64.0171 ? access-fannkuch 2031.7034+-84.1365 ? 2059.7932+-37.7003 ? might be 1.0138x slower access-nbody 3257.6769+-21.6954 ? 3297.8613+-23.2334 ? might be 1.0123x slower access-nsieve 2615.8301+-16.9671 ? 2618.7848+-22.4323 ? bitops-3bit-bits-in-byte 237.6195+-6.4040 236.7867+-5.6776 bitops-bits-in-byte 543.8614+-13.0341 533.1287+-4.9771 might be 1.0201x faster bitops-nsieve-bits 2838.9832+-27.1735 ? 2871.9086+-50.7744 ? might be 1.0116x slower controlflow-recursive 2631.6840+-31.7154 2616.8352+-22.8841 crypto-aes 3850.6544+-71.9108 ? 3870.1117+-61.8432 ? crypto-md5 3757.1407+-67.6617 3744.9117+-68.7314 crypto-sha1 4167.5549+-35.5560 ? 4172.8966+-36.5399 ? date-format-tofte 4147.4077+-61.1932 ? 4157.3208+-75.3768 ? date-format-xparb 4741.0953+-45.6068 4733.5782+-85.1889 hash-map 1123.0346+-21.3514 1092.6324+-25.8507 might be 1.0278x faster math-cordic 2956.7852+-33.3101 2939.4534+-28.4206 math-partial-sums 3104.9084+-25.0187 ? 3135.9914+-38.6734 ? might be 1.0100x slower math-spectral-norm 4581.1455+-37.6245 ? 4612.6143+-32.7220 ? string-base64 2549.6457+-196.9663 ? 2619.2205+-231.4725 ? might be 1.0273x slower string-fasta 2346.2110+-35.7030 2324.2865+-47.2201 string-tagcloud 1172.1411+-27.3103 1167.6298+-28.4972 <geometric> 2654.8870+-14.9014 ? 2656.2182+-11.3358 ? might be 1.0005x slower Fix BeforeFix V8Spider: crypto 517.8475+-18.8099 510.7007+-16.3780 might be 1.0140x faster deltablue 889.7703+-37.4933 ? 904.7790+-51.6238 ? might be 1.0169x slower earley-boyer 407.4143+-15.7157 397.8115+-5.7550 might be 1.0241x faster raytrace 415.9429+-13.4797 410.8824+-11.3964 might be 1.0123x faster regexp 421.0417+-10.8461 ? 427.0253+-12.6022 ? might be 1.0142x slower richards 517.1673+-25.4907 ? 547.5957+-24.4090 ? might be 1.0588x slower splay 354.9477+-27.4169 354.6688+-18.1259 <geometric> 481.3396+-6.8028 ? 484.0639+-6.8536 ? might be 1.0057x slower Fix BeforeFix Octane: encrypt 1.06643+-0.02291 1.04612+-0.01583 might be 1.0194x faster decrypt 19.26799+-0.26595 ? 19.66861+-0.56343 ? might be 1.0208x slower deltablue x2 0.91013+-0.02202 0.90852+-0.01952 earley 2.11263+-0.05547 2.08413+-0.06528 might be 1.0137x faster boyer 31.69638+-0.49096 31.07923+-0.59817 might be 1.0199x faster navier-stokes x2 26.84462+-0.30754 ? 27.05840+-0.59574 ? raytrace x2 6.06020+-0.12159 6.01713+-0.09121 richards x2 0.55841+-0.00593 0.55726+-0.01109 splay x2 2.81455+-0.04842 2.80272+-0.06162 regexp x2 161.52478+-2.11715 ? 163.12362+-1.49507 ? pdfjs x2 274.99122+-5.03177 272.04259+-4.84588 might be 1.0108x faster mandreel x2 327.85478+-15.92494 ? 337.35515+-13.23342 ? might be 1.0290x slower gbemu x2 234.28212+-2.30233 ? 240.33261+-16.99028 ? might be 1.0258x slower closure 3.76215+-0.07044 ? 3.79839+-0.09748 ? jquery 51.29816+-0.88359 ? 51.54450+-0.87454 ? box2d x2 100.16165+-2.26659 99.08167+-2.98488 might be 1.0109x faster zlib x2 1509.03620+-45.37333 1501.50150+-28.35773 typescript x2 4187.14572+-85.42193 4161.01849+-55.46713 <geometric> 36.37072+-0.17739 ? 36.40112+-0.24677 ? might be 1.0008x slower Fix BeforeFix Kraken: ai-astar 917.258+-34.338 917.165+-48.744 audio-beat-detection 389.593+-11.142 ? 400.542+-15.671 ? might be 1.0281x slower audio-dft 621.324+-16.133 611.327+-18.355 might be 1.0164x faster audio-fft 293.147+-11.209 ? 293.449+-9.620 ? audio-oscillator 382.405+-3.766 ? 391.087+-17.010 ? might be 1.0227x slower imaging-darkroom 416.763+-4.547 ? 423.493+-11.296 ? might be 1.0161x slower imaging-desaturate 407.154+-11.303 402.631+-9.128 might be 1.0112x faster imaging-gaussian-blur 622.305+-26.275 ? 623.474+-23.470 ? json-parse-financial 259.074+-5.208 ? 261.655+-6.587 ? json-stringify-tinderbox 151.131+-2.473 ? 152.214+-3.300 ? stanford-crypto-aes 317.395+-8.483 ? 332.680+-29.639 ? might be 1.0482x slower stanford-crypto-ccm 306.418+-14.164 298.411+-17.445 might be 1.0268x faster stanford-crypto-pbkdf2 597.750+-10.391 ? 613.064+-15.826 ? might be 1.0256x slower stanford-crypto-sha256-iterative 239.186+-8.448 236.155+-7.224 might be 1.0128x faster <arithmetic> 422.922+-1.751 ? 425.525+-3.395 ? might be 1.0062x slower Fix BeforeFix JSRegress: abc-forward-loop-equal 248.3547+-11.8250 243.1334+-3.9644 might be 1.0215x faster abc-postfix-backward-loop 246.1800+-8.0114 243.1070+-4.6267 might be 1.0126x faster abc-simple-backward-loop 244.0085+-4.6571 242.2568+-8.3343 abc-simple-forward-loop 242.2127+-4.8791 ? 243.1343+-5.8573 ? abc-skippy-loop 167.9513+-4.0436 167.5475+-2.9553 abs-boolean 22.8678+-0.5655 ? 23.0145+-1.1227 ? adapt-to-double-divide 88.1037+-1.4453 ? 88.4425+-1.1883 ? aliased-arguments-getbyval 15.1685+-1.6906 13.3485+-0.6205 might be 1.1363x faster allocate-big-object 18.5541+-1.6145 ? 19.5961+-1.1519 ? might be 1.0562x slower arguments-named-and-reflective 68.2729+-4.7680 ? 71.6875+-3.6158 ? might be 1.0500x slower arguments-out-of-bounds 71.9801+-3.4379 ? 72.3934+-3.1280 ? arguments-strict-mode 61.8747+-3.9827 ? 62.3142+-3.3367 ? arguments 54.1470+-3.4779 ? 57.9829+-2.4934 ? might be 1.0708x slower arity-mismatch-inlining 10.8566+-1.8645 10.5703+-2.5897 might be 1.0271x faster array-access-polymorphic-structure 51.6237+-4.3574 49.5312+-3.8777 might be 1.0422x faster array-nonarray-polymorhpic-access 196.7447+-9.2106 186.2057+-6.4906 might be 1.0566x faster array-prototype-every 474.7593+-13.5993 ? 477.1281+-9.1430 ? array-prototype-forEach 478.3115+-40.5658 468.5193+-13.9095 might be 1.0209x faster array-prototype-map 519.4578+-9.7583 ? 538.7429+-45.9244 ? might be 1.0371x slower array-prototype-reduce 459.4300+-27.5618 450.3123+-7.7892 might be 1.0202x faster array-prototype-reduceRight 509.1262+-22.7573 483.5309+-19.1673 might be 1.0529x faster array-prototype-some 473.8173+-12.8060 ? 475.8639+-10.6899 ? array-splice-contiguous 146.1763+-1.9852 ? 149.4180+-7.9055 ? might be 1.0222x slower array-with-double-add 36.2357+-0.8732 ? 36.5052+-2.0035 ? array-with-double-increment 27.9372+-1.5559 ? 29.3710+-3.2754 ? might be 1.0513x slower array-with-double-mul-add 47.6523+-1.8973 45.0891+-2.1704 might be 1.0568x faster array-with-double-sum 25.3787+-1.0872 ? 26.7085+-1.5638 ? might be 1.0524x slower array-with-int32-add-sub 58.0536+-3.3569 57.1935+-4.4378 might be 1.0150x faster array-with-int32-or-double-sum 27.9187+-0.6515 27.7355+-1.1347 ArrayBuffer-DataView-alloc-large-long-lived 206.6901+-5.9877 ? 210.9046+-8.8285 ? might be 1.0204x slower ArrayBuffer-DataView-alloc-long-lived 99.4792+-2.6241 98.1825+-2.8404 might be 1.0132x faster ArrayBuffer-Int32Array-byteOffset 23.4693+-1.4518 ? 24.7513+-2.7216 ? might be 1.0546x slower ArrayBuffer-Int8Array-alloc-large-long-lived 217.6071+-4.2521 214.0616+-5.9209 might be 1.0166x faster ArrayBuffer-Int8Array-alloc-long-lived-buffer 166.8110+-6.4926 163.8646+-8.3990 might be 1.0180x faster ArrayBuffer-Int8Array-alloc-long-lived 96.6720+-5.1920 92.5998+-2.9617 might be 1.0440x faster ArrayBuffer-Int8Array-alloc 85.6750+-5.5610 ? 87.5450+-11.2087 ? might be 1.0218x slower arrowfunction-call 76.0423+-1.3269 ? 77.4137+-3.0662 ? might be 1.0180x slower asmjs_bool_bug 51.8867+-3.1601 ? 54.3750+-5.5241 ? might be 1.0480x slower assign-custom-setter-polymorphic 16.7898+-0.7530 ? 17.5807+-2.4106 ? might be 1.0471x slower assign-custom-setter 24.0979+-1.4413 ? 24.3891+-1.5503 ? might be 1.0121x slower basic-set 60.3833+-4.7223 ? 60.5856+-5.3263 ? big-int-mul 31.2197+-2.6968 ? 32.4763+-1.5325 ? might be 1.0403x slower boolean-test 20.1479+-0.3327 ? 20.7159+-0.6992 ? might be 1.0282x slower branch-fold 39.6016+-2.0427 ? 40.8057+-2.1867 ? might be 1.0304x slower branch-on-string-as-boolean 107.8884+-3.7585 106.1672+-3.3058 might be 1.0162x faster by-val-generic 19.4797+-1.5766 ? 20.0226+-0.7894 ? might be 1.0279x slower call-spread-apply 228.3672+-13.3322 ? 234.9973+-12.3210 ? might be 1.0290x slower call-spread-call 168.4126+-8.5412 166.8345+-8.1874 captured-assignments 3.3037+-0.5848 ? 3.9162+-0.3297 ? might be 1.1854x slower cast-int-to-double 33.5422+-1.0804 ? 34.8210+-1.2540 ? might be 1.0381x slower cell-argument 37.8520+-0.9904 ? 38.9023+-2.8185 ? might be 1.0277x slower cfg-simplify 19.9194+-0.5006 ? 20.3031+-1.1597 ? might be 1.0193x slower chain-getter-access 59.0440+-3.7944 58.1888+-3.0709 might be 1.0147x faster cmpeq-obj-to-obj-other 80.0070+-3.1839 79.4862+-2.1357 constant-test 29.4543+-0.5831 ? 30.2509+-0.8742 ? might be 1.0270x slower create-lots-of-functions 66.2056+-5.8501 64.1871+-1.7751 might be 1.0314x faster cse-new-array-buffer 19.8762+-0.6097 19.3772+-0.8860 might be 1.0258x faster cse-new-array 21.2814+-0.8619 21.2569+-0.9973 custom-setter-getter-as-put-get-by-id 3.7253+-0.5935 ? 4.0805+-0.6244 ? might be 1.0954x slower DataView-custom-properties 242.5149+-5.1200 ? 243.3315+-7.2272 ? delay-tear-off-arguments-strictmode 97.3021+-9.8092 91.9093+-6.7803 might be 1.0587x faster deltablue-varargs 1529.2698+-29.0977 1506.1654+-22.1304 might be 1.0153x faster destructuring-arguments 1079.8660+-20.4854 ? 1089.6494+-28.5104 ? destructuring-parameters-overridden-by-function 3.5096+-0.5492 3.4616+-0.4624 might be 1.0139x faster destructuring-swap 33.6896+-2.8514 31.9637+-3.3813 might be 1.0540x faster direct-arguments-getbyval 13.8395+-1.3133 13.0507+-0.8767 might be 1.0604x faster div-boolean-double 28.2201+-0.3969 ? 28.6958+-0.3240 ? might be 1.0169x slower div-boolean 41.4660+-1.0170 ? 42.0199+-1.3554 ? might be 1.0134x slower double-get-by-val-out-of-bounds 30.7199+-2.9259 30.0472+-3.1970 might be 1.0224x faster double-pollution-getbyval 46.6652+-0.3662 46.3763+-0.3410 double-pollution-putbyoffset 24.8600+-1.3004 ? 24.8626+-4.7538 ? double-real-use 163.5290+-11.8867 161.3741+-8.1117 might be 1.0134x faster double-to-int32-typed-array-no-inline 28.6189+-1.8760 28.0342+-1.5075 might be 1.0209x faster double-to-int32-typed-array 20.5589+-1.3934 ? 21.4498+-1.9905 ? might be 1.0433x slower double-to-uint32-typed-array-no-inline 30.9026+-2.5728 30.2519+-0.9966 might be 1.0215x faster double-to-uint32-typed-array 22.5652+-1.9058 21.0390+-0.9283 might be 1.0725x faster elidable-new-object-dag 252.7990+-9.1641 243.7296+-8.3377 might be 1.0372x faster elidable-new-object-roflcopter 218.5367+-4.1005 ? 220.7202+-11.9423 ? elidable-new-object-then-call 237.9029+-3.6266 233.7087+-10.0059 might be 1.0179x faster elidable-new-object-tree 269.3029+-6.3054 ? 270.1916+-11.0806 ? empty-string-plus-int 35.6049+-2.1580 33.4929+-1.5954 might be 1.0631x faster emscripten-cube2hash 272.6950+-6.2258 ? 276.9236+-16.1087 ? might be 1.0155x slower exit-length-on-plain-object 94.0552+-3.4320 93.5144+-2.2441 external-arguments-getbyval 17.6419+-0.9070 ? 18.0192+-1.0966 ? might be 1.0214x slower external-arguments-putbyval 25.1720+-0.8427 ? 27.7577+-3.6395 ? might be 1.1027x slower fixed-typed-array-storage-var-index 14.2697+-1.5833 13.8413+-2.4228 might be 1.0310x faster fixed-typed-array-storage 10.2910+-1.0502 ? 11.3608+-1.0822 ? might be 1.1040x slower Float32Array-matrix-mult 27.0676+-0.5071 ? 30.6939+-6.7689 ? might be 1.1340x slower Float32Array-to-Float64Array-set 310.1675+-13.1513 307.3061+-6.6665 Float64Array-alloc-long-lived 496.4288+-7.0654 489.8095+-5.0550 might be 1.0135x faster Float64Array-to-Int16Array-set 372.3265+-11.0429 ? 391.2651+-41.7865 ? might be 1.0509x slower fold-double-to-int 89.6517+-7.4943 ? 89.9210+-5.6521 ? fold-get-by-id-to-multi-get-by-offset-rare-int 80.8470+-5.3045 80.8130+-3.1756 fold-get-by-id-to-multi-get-by-offset 69.7762+-2.0567 ? 69.8798+-1.5904 ? fold-multi-get-by-offset-to-get-by-offset 64.6475+-2.5669 62.7396+-2.8776 might be 1.0304x faster fold-multi-get-by-offset-to-poly-get-by-offset 69.2465+-4.8206 66.8054+-3.9023 might be 1.0365x faster fold-multi-put-by-offset-to-poly-put-by-offset 75.2249+-3.8481 ? 75.7490+-5.6023 ? fold-multi-put-by-offset-to-put-by-offset 72.4652+-5.1430 66.0322+-5.9772 might be 1.0974x faster fold-multi-put-by-offset-to-replace-or-transition-put-by-offset 88.2826+-6.8597 ? 91.2180+-4.2326 ? might be 1.0332x slower fold-put-by-id-to-multi-put-by-offset 81.5416+-1.8387 80.3013+-2.4617 might be 1.0154x faster fold-put-by-val-with-string-to-multi-put-by-offset 80.5768+-2.2859 77.9179+-3.8368 might be 1.0341x faster fold-put-by-val-with-symbol-to-multi-put-by-offset 80.6056+-1.9483 ? 82.6725+-3.1537 ? might be 1.0256x slower fold-put-structure 55.4818+-2.4504 55.2573+-4.5552 for-of-iterate-array-entries 81.3887+-6.8297 ? 83.1516+-6.6863 ? might be 1.0217x slower for-of-iterate-array-keys 34.0285+-3.0841 32.6400+-1.0607 might be 1.0425x faster for-of-iterate-array-values 34.7778+-4.5627 33.3632+-1.6340 might be 1.0424x faster fround 97.9710+-3.1966 ? 98.8747+-2.3054 ? ftl-library-inlining-dataview 386.9449+-12.2903 385.8836+-12.1005 ftl-library-inlining 658.0836+-8.4589 657.9121+-9.2447 ftl-object-sub 1940.6414+-16.7151 ? 1943.4342+-27.3714 ? function-call 79.2921+-1.8089 78.2475+-2.0669 might be 1.0133x faster function-dot-apply 18.5085+-1.1856 18.0880+-1.0608 might be 1.0232x faster function-test 20.4301+-0.6596 ? 21.8943+-1.7218 ? might be 1.0717x slower function-with-eval 571.6324+-14.1836 ? 579.3211+-19.8840 ? might be 1.0135x slower gcse-poly-get-less-obvious 153.6821+-6.9120 151.3678+-3.8002 might be 1.0153x faster gcse-poly-get 153.0598+-2.9111 ? 153.8516+-4.1257 ? gcse 31.4513+-2.6384 30.4837+-1.4886 might be 1.0317x faster get-by-id-bimorphic-check-structure-elimination-simple 23.4345+-3.8950 21.0181+-2.0449 might be 1.1150x faster get-by-id-bimorphic-check-structure-elimination 41.2886+-0.9385 41.2861+-1.3484 get-by-id-chain-from-try-block 15.0194+-0.7142 14.9966+-0.5385 get-by-id-check-structure-elimination 30.4046+-2.3189 ? 31.5512+-1.9463 ? might be 1.0377x slower get-by-id-proto-or-self 111.1536+-5.8157 ? 113.7448+-12.3615 ? might be 1.0233x slower get-by-id-quadmorphic-check-structure-elimination-simple 25.3158+-1.4461 ? 25.6265+-1.5342 ? might be 1.0123x slower get-by-id-self-or-proto 115.8764+-12.6263 ? 117.5045+-16.1148 ? might be 1.0141x slower get-by-val-out-of-bounds 31.9862+-3.7469 29.3296+-2.2178 might be 1.0906x faster get-by-val-with-string-bimorphic-check-structure-elimination-simple 25.4583+-3.0973 25.4190+-1.9566 get-by-val-with-string-bimorphic-check-structure-elimination 61.7146+-2.1415 ? 64.1429+-6.3696 ? might be 1.0393x slower get-by-val-with-string-chain-from-try-block 15.3152+-0.7746 15.1277+-0.2966 might be 1.0124x faster get-by-val-with-string-check-structure-elimination 51.9030+-1.4397 ? 52.1370+-1.7423 ? get-by-val-with-string-proto-or-self 125.1975+-9.3368 118.2734+-10.0015 might be 1.0585x faster get-by-val-with-string-quadmorphic-check-structure-elimination-simple 32.1366+-1.2193 ? 35.0125+-4.5525 ? might be 1.0895x slower get-by-val-with-string-self-or-proto 116.7083+-5.1996 ? 116.8854+-14.3928 ? get-by-val-with-symbol-bimorphic-check-structure-elimination-simple 32.1347+-3.0090 30.0809+-1.9466 might be 1.0683x faster get-by-val-with-symbol-bimorphic-check-structure-elimination 120.3906+-11.0537 117.3497+-2.2127 might be 1.0259x faster get-by-val-with-symbol-chain-from-try-block 15.2810+-0.7434 14.8809+-0.2018 might be 1.0269x faster get-by-val-with-symbol-check-structure-elimination 102.9545+-2.7765 101.7386+-2.4803 might be 1.0120x faster get-by-val-with-symbol-proto-or-self 117.4892+-3.2699 ? 118.0263+-4.9909 ? get-by-val-with-symbol-quadmorphic-check-structure-elimination-simple 39.9579+-2.5855 37.6209+-1.8585 might be 1.0621x faster get-by-val-with-symbol-self-or-proto 123.5155+-5.0466 ? 127.8084+-12.5512 ? might be 1.0348x slower get_callee_monomorphic 22.8955+-1.1601 21.8961+-0.8305 might be 1.0456x faster get_callee_polymorphic 22.5811+-2.6543 22.1932+-1.6230 might be 1.0175x faster getter-no-activation 32.2466+-0.6583 ? 32.4869+-0.5105 ? getter-prototype 62.9038+-1.3070 ? 63.1887+-1.8431 ? getter-richards-try-catch 7439.2906+-100.2175 ? 7561.9803+-135.7924 ? might be 1.0165x slower getter-richards 1034.5029+-27.3592 ? 1040.0813+-26.6802 ? getter 41.1127+-2.7953 39.6100+-1.2016 might be 1.0379x faster global-object-access-with-mutating-structure 40.1761+-6.1580 38.7239+-4.4406 might be 1.0375x faster global-var-const-infer-fire-from-opt 5.8555+-1.2578 5.3885+-1.0119 might be 1.0867x faster global-var-const-infer 4.8159+-0.6612 4.7100+-0.6866 might be 1.0225x faster hard-overflow-check-equal 197.4247+-2.9028 ? 201.9360+-7.6058 ? might be 1.0229x slower hard-overflow-check 197.0093+-5.2921 195.8808+-1.6683 HashMap-put-get-iterate-keys 242.5242+-7.2437 234.1064+-9.8574 might be 1.0360x faster HashMap-put-get-iterate 245.9733+-11.0033 ? 251.1104+-10.1797 ? might be 1.0209x slower HashMap-string-put-get-iterate 262.4806+-17.0988 255.0180+-4.7993 might be 1.0293x faster hoist-make-rope 61.3640+-2.0564 ? 62.1887+-3.6646 ? might be 1.0134x slower hoist-poly-check-structure-effectful-loop 33.2069+-1.9901 32.9044+-1.5906 hoist-poly-check-structure 23.9777+-1.3177 ? 24.6169+-0.8462 ? might be 1.0267x slower imul-double-only 46.4455+-3.2123 ? 47.9195+-3.5234 ? might be 1.0317x slower imul-int-only 46.7033+-2.4373 ? 49.0479+-2.5110 ? might be 1.0502x slower imul-mixed 44.1217+-3.0165 ? 46.4489+-4.0805 ? might be 1.0527x slower in-four-cases 132.3111+-1.3645 ? 139.3483+-8.4667 ? might be 1.0532x slower in-one-case-false 87.1871+-3.9024 ? 90.8621+-3.0009 ? might be 1.0422x slower in-one-case-true 91.9971+-5.8642 91.2800+-8.2798 in-two-cases 94.1604+-6.4886 91.7974+-4.3742 might be 1.0257x faster indexed-properties-in-objects 23.5090+-1.0266 23.1531+-1.0079 might be 1.0154x faster infer-closure-const-then-mov-no-inline 39.5889+-4.1582 37.4361+-1.4586 might be 1.0575x faster infer-closure-const-then-mov 108.3543+-2.7836 105.1573+-2.3373 might be 1.0304x faster infer-closure-const-then-put-to-scope-no-inline 73.8618+-4.1594 72.5915+-3.5290 might be 1.0175x faster infer-closure-const-then-put-to-scope 122.2302+-3.1486 ? 126.8000+-5.3187 ? might be 1.0374x slower infer-closure-const-then-reenter-no-inline 303.7436+-24.8030 293.2769+-4.8959 might be 1.0357x faster infer-closure-const-then-reenter 127.6003+-4.5925 ? 130.1367+-10.6536 ? might be 1.0199x slower infer-constant-global-property 21.2719+-0.2141 20.9713+-0.4650 might be 1.0143x faster infer-constant-property 20.5729+-2.1643 19.1651+-0.6576 might be 1.0735x faster infer-one-time-closure-ten-vars 58.0474+-3.4145 57.6999+-4.1631 infer-one-time-closure-two-vars 53.9786+-1.8947 ? 55.5354+-1.6895 ? might be 1.0288x slower infer-one-time-closure 54.0497+-2.6889 ? 55.7831+-4.3760 ? might be 1.0321x slower infer-one-time-deep-closure 86.2099+-3.8143 ? 88.6582+-7.0511 ? might be 1.0284x slower inline-arguments-access 28.2180+-2.0329 ? 28.5418+-1.2325 ? might be 1.0115x slower inline-arguments-aliased-access 28.8702+-0.7018 27.6418+-0.9835 might be 1.0444x faster inline-arguments-local-escape 28.6228+-1.6619 ? 29.0631+-1.5065 ? might be 1.0154x slower inline-get-scoped-var 30.6546+-0.3998 30.3474+-0.3003 might be 1.0101x faster inlined-put-by-id-transition 70.8786+-4.7837 70.7156+-2.7142 inlined-put-by-val-with-string-transition 288.6105+-6.5557 283.0253+-9.5009 might be 1.0197x faster inlined-put-by-val-with-symbol-transition 285.5282+-4.9751 ? 288.0415+-7.3454 ? int-or-other-abs-then-get-by-val 35.8548+-2.2182 33.3100+-2.2294 might be 1.0764x faster int-or-other-abs-zero-then-get-by-val 113.1167+-4.2468 108.3478+-6.3169 might be 1.0440x faster int-or-other-add-then-get-by-val 31.5777+-3.2311 ? 35.4733+-3.7839 ? might be 1.1234x slower int-or-other-add 32.9695+-2.8993 ? 35.3986+-4.5898 ? might be 1.0737x slower int-or-other-div-then-get-by-val 29.8175+-2.0949 28.8421+-0.9899 might be 1.0338x faster int-or-other-max-then-get-by-val 30.1508+-2.9399 ? 31.5998+-1.7841 ? might be 1.0481x slower int-or-other-min-then-get-by-val 33.0020+-3.2732 31.3052+-3.4360 might be 1.0542x faster int-or-other-mod-then-get-by-val 26.7600+-1.2373 ? 27.4178+-2.1078 ? might be 1.0246x slower int-or-other-mul-then-get-by-val 27.8539+-1.7683 ? 28.2698+-1.5700 ? might be 1.0149x slower int-or-other-neg-then-get-by-val 32.0579+-2.6089 30.3278+-3.0388 might be 1.0570x faster int-or-other-neg-zero-then-get-by-val 105.6652+-6.4521 103.6017+-4.2521 might be 1.0199x faster int-or-other-sub-then-get-by-val 33.6273+-4.3091 ? 35.0634+-4.3363 ? might be 1.0427x slower int-or-other-sub 28.8936+-3.5562 28.3027+-2.8231 might be 1.0209x faster int-overflow-local 36.0428+-3.3607 34.9950+-1.4187 might be 1.0299x faster Int16Array-alloc-long-lived 414.0408+-5.1609 412.9801+-10.8979 Int16Array-bubble-sort-with-byteLength 140.3655+-4.3537 ? 142.8105+-6.2125 ? might be 1.0174x slower Int16Array-bubble-sort 139.2645+-2.1049 ? 144.1495+-9.0071 ? might be 1.0351x slower Int16Array-load-int-mul 16.9655+-2.3887 ? 20.3563+-1.2355 ? might be 1.1999x slower Int16Array-to-Int32Array-set 293.7810+-19.2267 ? 294.7234+-17.3502 ? Int32Array-alloc-large 118.1516+-3.0678 ? 118.9050+-2.4182 ? Int32Array-alloc-long-lived 434.9179+-10.5194 428.1853+-9.4269 might be 1.0157x faster Int32Array-alloc 21.1794+-1.1853 ? 22.5009+-2.2815 ? might be 1.0624x slower Int32Array-Int8Array-view-alloc 40.5848+-2.7575 ? 41.8548+-4.5808 ? might be 1.0313x slower int52-spill 39.9429+-3.8723 ? 43.5003+-4.4078 ? might be 1.0891x slower Int8Array-alloc-long-lived 361.2815+-15.9496 355.7922+-16.3056 might be 1.0154x faster Int8Array-load-with-byteLength 24.7728+-2.1406 24.0679+-0.7930 might be 1.0293x faster Int8Array-load 24.9539+-1.6313 23.9702+-1.5853 might be 1.0410x faster integer-divide 75.4961+-3.6220 74.8463+-1.9660 integer-modulo 21.4453+-1.3348 19.7616+-1.0856 might be 1.0852x faster is-boolean-fold-tricky 27.5968+-2.8911 ? 27.9692+-3.9923 ? might be 1.0135x slower is-boolean-fold 20.8186+-0.7146 ? 20.9853+-0.8507 ? is-function-fold-tricky-internal-function 80.5955+-15.3388 73.8285+-6.7594 might be 1.0917x faster is-function-fold-tricky 28.4310+-3.1548 27.9651+-3.2320 might be 1.0167x faster is-function-fold 21.5049+-0.6110 20.6832+-1.0722 might be 1.0397x faster is-number-fold-tricky 30.3958+-3.0912 29.8339+-3.7573 might be 1.0188x faster is-number-fold 20.9139+-1.0185 ? 21.4782+-0.2281 ? might be 1.0270x slower is-object-or-null-fold-functions 21.2103+-0.7097 ? 21.2178+-0.9225 ? is-object-or-null-fold-less-tricky 27.7766+-2.7556 ? 29.2303+-2.5157 ? might be 1.0523x slower is-object-or-null-fold-tricky 36.3703+-5.0491 ? 38.4519+-5.0161 ? might be 1.0572x slower is-object-or-null-fold 21.5919+-0.6342 20.8412+-0.9444 might be 1.0360x faster is-object-or-null-trickier-function 30.9670+-0.9129 29.5915+-2.1123 might be 1.0465x faster is-object-or-null-trickier-internal-function 76.1633+-6.8044 ? 76.2104+-8.8930 ? is-object-or-null-tricky-function 29.9841+-2.1435 ? 30.1091+-2.2392 ? is-object-or-null-tricky-internal-function 52.4604+-3.8272 ? 53.0280+-4.4840 ? might be 1.0108x slower is-string-fold-tricky 28.6809+-2.9507 27.6410+-3.1509 might be 1.0376x faster is-string-fold 21.1254+-1.3133 20.9288+-0.6921 is-undefined-fold-tricky 27.6399+-3.6503 26.7113+-0.6298 might be 1.0348x faster is-undefined-fold 21.2455+-0.7474 20.7764+-0.9585 might be 1.0226x faster JSONP-negative-0 1.7598+-0.4557 1.4644+-0.0510 might be 1.2017x faster large-int-captured 31.5883+-1.1263 31.1993+-2.0704 might be 1.0125x faster large-int-neg 90.8738+-7.5658 88.0585+-3.7051 might be 1.0320x faster large-int 82.2344+-5.9553 ? 84.8481+-7.5053 ? might be 1.0318x slower load-varargs-elimination 128.6814+-3.6905 ? 130.3015+-5.7107 ? might be 1.0126x slower logical-not-weird-types 24.9646+-1.1368 ? 25.0066+-1.7074 ? logical-not 32.3065+-4.0140 31.0624+-5.6206 might be 1.0401x faster lots-of-fields 77.6734+-5.7490 ? 81.4124+-8.6141 ? might be 1.0481x slower make-indexed-storage 26.4108+-0.5891 26.3351+-0.7573 make-rope-cse 63.7290+-23.3034 63.2879+-24.1401 marsaglia-larger-ints 231.5888+-3.7372 ? 235.4858+-8.0286 ? might be 1.0168x slower marsaglia-osr-entry 131.7492+-5.3470 ? 140.9822+-10.6871 ? might be 1.0701x slower math-with-out-of-bounds-array-values 138.0207+-7.4522 ? 143.7501+-14.7076 ? might be 1.0415x slower max-boolean 21.1494+-0.9057 20.6707+-1.0428 might be 1.0232x faster method-on-number 96.9545+-3.9263 ? 99.5086+-5.6049 ? might be 1.0263x slower min-boolean 20.3871+-0.7161 ? 20.9946+-0.6947 ? might be 1.0298x slower minus-boolean-double 20.2047+-0.3411 20.1639+-0.6771 minus-boolean 19.2968+-1.1815 19.1006+-0.6501 might be 1.0103x faster misc-strict-eq 192.7561+-11.0636 ? 194.6218+-5.3801 ? mod-boolean-double 63.7414+-3.1473 63.6026+-1.9772 mod-boolean 43.0380+-0.8316 ? 43.7653+-1.5681 ? might be 1.0169x slower mul-boolean-double 22.1679+-0.6482 21.5932+-0.4637 might be 1.0266x faster mul-boolean 19.9781+-0.8473 19.8300+-0.5968 neg-boolean 22.2106+-1.2857 21.8952+-0.5372 might be 1.0144x faster negative-zero-divide 2.5881+-0.3479 ? 2.8442+-0.4786 ? might be 1.0990x slower negative-zero-modulo 2.9882+-0.5584 2.8665+-0.4348 might be 1.0424x faster negative-zero-negate 3.0559+-0.4976 2.8812+-0.7461 might be 1.0606x faster nested-function-parsing 254.9090+-3.2695 253.6252+-7.9046 new-array-buffer-dead 570.0752+-8.5637 ? 572.4095+-11.9470 ? new-array-buffer-push 81.3050+-2.2111 ? 85.5316+-6.2747 ? might be 1.0520x slower new-array-dead 110.5699+-3.6611 107.8911+-4.5895 might be 1.0248x faster new-array-push 32.3671+-1.9030 ? 32.4062+-1.3898 ? no-inline-constructor 234.5881+-5.8258 227.2654+-6.9313 might be 1.0322x faster number-test 20.7652+-0.7566 20.5342+-0.7042 might be 1.0112x faster object-closure-call 39.0291+-2.9705 37.6329+-3.7276 might be 1.0371x faster object-get-own-property-symbols-on-large-array 25.6381+-1.7280 ? 28.9028+-2.1589 ? might be 1.1273x slower object-test 20.9040+-1.7052 ? 21.3716+-1.6827 ? might be 1.0224x slower obvious-sink-pathology-taken 698.2741+-10.4222 698.1639+-13.2716 obvious-sink-pathology 218.7240+-5.7427 215.5443+-8.0669 might be 1.0148x faster obviously-elidable-new-object 208.5641+-5.4856 206.7479+-4.1272 plus-boolean-arith 19.8546+-0.4223 ? 19.9548+-0.6123 ? plus-boolean-double 21.5928+-2.4518 20.2342+-0.5601 might be 1.0671x faster plus-boolean 19.4352+-1.1187 18.6309+-0.6055 might be 1.0432x faster poly-chain-access-different-prototypes-simple 23.2156+-1.6828 ? 24.3576+-1.4059 ? might be 1.0492x slower poly-chain-access-different-prototypes 20.3248+-1.2430 ? 20.8123+-1.0686 ? might be 1.0240x slower poly-chain-access-simpler 22.8906+-1.4199 ? 24.1867+-2.6669 ? might be 1.0566x slower poly-chain-access 20.5511+-1.0672 20.2842+-1.2444 might be 1.0132x faster poly-stricteq 338.8976+-4.1419 ? 342.3390+-23.2289 ? might be 1.0102x slower polymorphic-array-call 15.4984+-0.6771 ? 15.5124+-1.0716 ? polymorphic-get-by-id 22.9206+-1.4691 ? 23.0477+-0.7007 ? polymorphic-put-by-id 212.0586+-7.8434 ? 212.9590+-10.7822 ? polymorphic-put-by-val-with-string 216.8737+-11.3723 214.6953+-9.8213 might be 1.0101x faster polymorphic-put-by-val-with-symbol 208.0868+-0.8865 ? 212.2851+-6.7120 ? might be 1.0202x slower polymorphic-structure 79.5648+-2.7442 ? 83.5221+-4.5936 ? might be 1.0497x slower polyvariant-monomorphic-get-by-id 69.7090+-5.3605 66.6412+-1.5460 might be 1.0460x faster proto-getter-access 60.9397+-4.5792 58.1961+-2.4087 might be 1.0471x faster prototype-access-with-mutating-prototype 38.3606+-4.8471 36.9279+-3.2655 might be 1.0388x faster put-by-id-replace-and-transition 54.7204+-4.0735 ? 55.8335+-3.2174 ? might be 1.0203x slower put-by-id-slightly-polymorphic 21.3425+-0.9432 ? 21.4415+-1.3311 ? put-by-id 77.3204+-3.5293 75.3388+-4.1252 might be 1.0263x faster put-by-val-direct 3.2748+-0.6193 2.8743+-0.5214 might be 1.1393x faster put-by-val-large-index-blank-indexing-type 37.6198+-3.0133 ? 41.7556+-4.1608 ? might be 1.1099x slower put-by-val-machine-int 22.4891+-0.7455 ? 22.8433+-0.5951 ? might be 1.0158x slower put-by-val-with-string-replace-and-transition 72.4495+-3.4090 70.7083+-1.3172 might be 1.0246x faster put-by-val-with-string-slightly-polymorphic 26.1489+-0.5987 ? 26.4767+-2.0976 ? might be 1.0125x slower put-by-val-with-string 75.0376+-2.7471 73.4000+-2.3443 might be 1.0223x faster put-by-val-with-symbol-replace-and-transition 76.7366+-1.9654 76.0969+-1.4409 put-by-val-with-symbol-slightly-polymorphic 31.0532+-1.3520 30.3522+-1.0932 might be 1.0231x faster put-by-val-with-symbol 73.9956+-2.0578 ? 74.4643+-2.0611 ? rare-osr-exit-on-local 90.2668+-4.4570 ? 90.5140+-5.8072 ? raytrace-with-empty-try-catch 45.8954+-6.5968 45.2542+-5.2048 might be 1.0142x faster raytrace-with-try-catch 88.3881+-10.7426 87.9826+-3.2670 register-pressure-from-osr 120.6426+-10.4559 ? 122.7211+-11.1620 ? might be 1.0172x slower repeat-multi-get-by-offset 135.2970+-6.6761 132.5757+-8.3305 might be 1.0205x faster richards-empty-try-catch 465.0954+-8.1787 ? 473.5721+-27.2325 ? might be 1.0182x slower richards-try-catch 1520.9032+-13.6537 1511.0594+-26.5284 setter-prototype 53.0567+-2.3874 50.9932+-1.1531 might be 1.0405x faster setter 38.6514+-1.0862 ! 49.8688+-1.2346 ! definitely 1.2902x slower simple-activation-demo 147.5407+-6.6730 ? 157.4915+-9.8142 ? might be 1.0674x slower simple-getter-access 74.9830+-3.1541 73.7732+-2.0431 might be 1.0164x faster simple-poly-call-nested 55.8170+-2.1653 55.2667+-1.4896 simple-poly-call 16.5826+-1.2309 ? 16.8123+-1.6535 ? might be 1.0139x slower sin-boolean 108.2684+-8.0668 105.2971+-4.3302 might be 1.0282x faster singleton-scope 368.6896+-33.0565 358.7339+-7.4452 might be 1.0278x faster sink-function 63.1319+-4.9748 62.9786+-2.5910 sink-huge-activation 96.5660+-3.9652 ? 103.7682+-3.7147 ? might be 1.0746x slower sinkable-new-object-dag 387.7722+-7.8665 ? 387.8447+-12.5376 ? sinkable-new-object-taken 302.9868+-10.4481 300.0339+-9.3971 sinkable-new-object 212.8099+-9.8478 ? 214.3688+-6.8136 ? slow-array-profile-convergence 18.0910+-0.8064 ? 18.5372+-1.6007 ? might be 1.0247x slower slow-convergence 17.7572+-1.5806 ? 20.0832+-1.7175 ? might be 1.1310x slower slow-ternaries 140.5127+-7.2927 135.0395+-3.2588 might be 1.0405x faster sorting-benchmark 116.7383+-13.9113 110.2499+-1.5169 might be 1.0589x faster sparse-conditional 12.4335+-1.1217 ? 13.2960+-2.2575 ? might be 1.0694x slower splice-to-remove 86.5713+-2.9699 85.1324+-2.0673 might be 1.0169x faster string-char-code-at 97.8467+-6.3406 ? 103.4617+-7.9525 ? might be 1.0574x slower string-concat-object 14.8041+-1.3678 14.3506+-1.1746 might be 1.0316x faster string-concat-pair-object 14.1347+-1.1341 13.8463+-0.9804 might be 1.0208x faster string-concat-pair-simple 73.2318+-3.2406 ? 74.7151+-3.2567 ? might be 1.0203x slower string-concat-simple 77.2840+-4.0715 ? 77.7724+-6.0493 ? string-cons-repeat 54.5978+-4.9403 ? 56.3950+-3.4749 ? might be 1.0329x slower string-cons-tower 54.8371+-3.4728 52.2709+-3.7407 might be 1.0491x faster string-equality 123.6823+-6.2875 119.8359+-12.1348 might be 1.0321x faster string-get-by-val-big-char 48.6850+-3.4766 48.2600+-3.0194 string-get-by-val-out-of-bounds-insane 23.0407+-2.0489 ? 23.6817+-6.2195 ? might be 1.0278x slower string-get-by-val-out-of-bounds 40.3425+-0.9776 ? 40.3758+-2.7637 ? string-get-by-val 27.6425+-2.9547 27.4706+-2.4720 string-hash 21.8142+-1.8052 20.3273+-0.8663 might be 1.0731x faster string-long-ident-equality 99.2269+-7.0653 ? 101.6585+-8.7218 ? might be 1.0245x slower string-out-of-bounds 75.4349+-3.1444 ? 78.4782+-7.1822 ? might be 1.0403x slower string-repeat-arith 167.1833+-3.4738 165.3757+-1.8531 might be 1.0109x faster string-sub 225.8175+-4.6483 223.7131+-3.6372 string-test 20.3033+-0.4953 ? 20.6263+-1.2412 ? might be 1.0159x slower string-var-equality 191.8360+-3.9785 ? 193.7697+-4.2185 ? might be 1.0101x slower structure-hoist-over-transitions 19.5381+-0.7318 18.8941+-0.8062 might be 1.0341x faster substring-concat-weird 246.4594+-3.5166 ? 252.1599+-6.9033 ? might be 1.0231x slower substring-concat 266.5085+-5.9785 ? 271.2991+-14.9789 ? might be 1.0180x slower substring 296.8947+-5.8104 ? 299.5863+-7.5064 ? switch-char-constant 24.2994+-2.2307 22.8694+-0.7850 might be 1.0625x faster switch-char 49.8199+-2.5269 49.3379+-1.5740 switch-constant 51.7869+-2.7596 ? 52.4816+-1.6079 ? might be 1.0134x slower switch-string-basic-big-var 122.0087+-11.4473 ? 130.5538+-13.0632 ? might be 1.0700x slower switch-string-basic-big 122.0480+-14.4163 121.4859+-21.8805 switch-string-basic-var 103.1384+-6.4397 93.5410+-4.9829 might be 1.1026x faster switch-string-basic 96.0862+-7.4738 ? 96.2378+-13.6305 ? switch-string-big-length-tower-var 125.9320+-8.8751 119.9949+-8.9661 might be 1.0495x faster switch-string-length-tower-var 98.4826+-4.4666 94.8630+-6.7352 might be 1.0382x faster switch-string-length-tower 81.2186+-3.5539 80.6365+-4.9974 switch-string-short 79.7038+-4.3658 ? 80.9059+-5.5167 ? might be 1.0151x slower switch 74.6167+-2.2768 72.2062+-2.7012 might be 1.0334x faster tear-off-arguments-simple 25.4145+-2.0719 23.8238+-0.6953 might be 1.0668x faster tear-off-arguments 30.1293+-1.2720 ? 30.4761+-0.8782 ? might be 1.0115x slower temporal-structure 75.5294+-4.3503 ? 77.2843+-3.8437 ? might be 1.0232x slower to-int32-boolean 81.8837+-1.5243 81.8167+-3.2222 try-catch-get-by-val-cloned-arguments 68.8909+-3.6470 67.2928+-2.7079 might be 1.0237x faster try-catch-get-by-val-direct-arguments 14.1557+-0.5459 ? 14.3083+-0.7135 ? might be 1.0108x slower try-catch-get-by-val-scoped-arguments 29.6014+-1.6277 29.4226+-1.5063 typed-array-get-set-by-val-profiling 185.6413+-5.8530 ? 187.8572+-10.0398 ? might be 1.0119x slower undefined-property-access 1920.5441+-18.4318 ? 1921.0068+-12.2927 ? undefined-test 20.9133+-0.6927 20.7510+-1.5002 unprofiled-licm 69.8514+-2.1820 ? 73.2597+-5.3848 ? might be 1.0488x slower v8-raytrace-with-empty-try-catch 454.4405+-23.1414 450.8443+-23.1058 v8-raytrace-with-try-catch 491.6582+-13.4017 ? 494.0941+-11.1226 ? varargs-call 92.0271+-4.1076 ? 92.8823+-4.0608 ? varargs-construct-inline 152.2624+-5.7617 150.6516+-5.1035 might be 1.0107x faster varargs-construct 133.3859+-8.6071 132.2691+-4.6177 varargs-inline 63.9172+-4.4543 ? 65.2684+-3.1963 ? might be 1.0211x slower varargs-strict-mode 64.3584+-4.2519 ? 73.2272+-8.1800 ? might be 1.1378x slower varargs 68.2766+-9.2920 65.6472+-6.6378 might be 1.0401x faster weird-inlining-const-prop 34.7619+-2.5935 34.3427+-5.9477 might be 1.0122x faster <geometric> 61.5038+-0.1595 ? 61.5067+-0.2936 ? might be 1.0000x slower Fix BeforeFix Geomean of preferred means: <scaled-result> 191.5399+-0.8679 ? 191.6696+-0.7958 ? might be 1.0007x slower

Can you add a regression test to your patch? The project requires that each behavior change patch should include a regression test.

(In reply to comment #5) > Can you add a regression test to your patch? The project requires that each > behavior change patch should include a regression test. I've managed to reproduce it only in https://bugs.webkit.org/show_bug.cgi?id=149338 in one of the tests. Would it be OK to land 149338 patch with the commented failed test and then this patch with uncommented test?

Comment on attachment 264868 [details] Patch Yes, that's OK. r=me

Comment on attachment 264868 [details] Patch Clearing flags on attachment: 264868 Committed r192078: <http://trac.webkit.org/changeset/192078>

All reviewed patches have been landed. Closing bug.