149885 – Don't setOutOfBounds in JIT code for PutByVal, since the C++ slow path already does it

Filip Pizlo

Reported 2015-10-07 12:01:01 PDT

Patch forthcoming.

Filip Pizlo

Comment 1 2015-10-07 12:32:50 PDT

Performance is OK: Benchmark report for SunSpider, LongSpider, V8Spider, Octane, Kraken, JSRegress, AsmBench, and CompressionBench on shakezilla (MacBookPro11,3). VMs tested: "TipOfTree" at /Volumes/Data/secondary/OpenSource/WebKitBuild/Release/jsc (r190675) "SimplerPutPath" at /Volumes/Data/quinary/OpenSource/WebKitBuild/Release/jsc (r190676) Collected 6 samples per benchmark/VM, with 6 VM invocations per benchmark. Emitted a call to gc() between sample measurements. Used 1 benchmark iteration 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. TipOfTree SimplerPutPath SunSpider: 3d-cube 4.5937+-0.1238 4.5818+-0.2602 3d-morph 5.3879+-0.3167 5.3077+-0.1991 might be 1.0151x faster 3d-raytrace 5.3010+-0.4242 5.2419+-0.5207 might be 1.0113x faster access-binary-trees 2.1607+-0.1163 2.1462+-0.1108 access-fannkuch 5.6361+-0.4137 5.5177+-0.2821 might be 1.0215x faster access-nbody 2.5001+-0.0702 ? 2.5447+-0.1257 ? might be 1.0179x slower access-nsieve 3.4808+-0.2063 3.4558+-0.1697 bitops-3bit-bits-in-byte 1.3322+-0.5296 1.1665+-0.0769 might be 1.1421x faster bitops-bits-in-byte 3.2507+-0.1658 3.2279+-0.2755 bitops-bitwise-and 2.0743+-0.1111 2.0128+-0.0676 might be 1.0305x faster bitops-nsieve-bits 3.3542+-1.0793 3.1964+-0.3778 might be 1.0494x faster controlflow-recursive 2.3747+-0.0866 2.3395+-0.0802 might be 1.0150x faster crypto-aes 3.8560+-0.0871 ? 3.9912+-0.1515 ? might be 1.0351x slower crypto-md5 2.4874+-0.1015 ? 2.5568+-0.2320 ? might be 1.0279x slower crypto-sha1 2.4182+-0.1977 ? 2.4594+-0.1369 ? might be 1.0171x slower date-format-tofte 6.6688+-0.3766 6.6411+-0.3028 date-format-xparb 4.4753+-0.0953 ? 4.6008+-0.1115 ? might be 1.0280x slower math-cordic 2.9007+-0.1995 2.7729+-0.0901 might be 1.0461x faster math-partial-sums 4.7853+-0.1793 ? 4.8406+-0.3275 ? might be 1.0115x slower math-spectral-norm 1.9505+-0.1653 1.9000+-0.0857 might be 1.0266x faster regexp-dna 6.0311+-0.1327 ? 6.2454+-0.3627 ? might be 1.0355x slower string-base64 4.3161+-0.2357 ? 4.3536+-0.5115 ? string-fasta 5.8743+-0.1635 5.8678+-0.2021 string-tagcloud 8.2430+-0.3925 7.8249+-0.1500 might be 1.0534x faster string-unpack-code 18.1074+-1.1154 ? 18.4040+-0.9448 ? might be 1.0164x slower string-validate-input 4.4063+-0.1524 ? 4.5342+-0.2969 ? might be 1.0290x slower <arithmetic> 4.5372+-0.0719 4.5281+-0.0569 might be 1.0020x faster TipOfTree SimplerPutPath LongSpider: 3d-cube 798.3566+-6.2417 ^ 783.6840+-6.9260 ^ definitely 1.0187x faster 3d-morph 1490.0304+-5.2424 ? 1491.7212+-6.2052 ? 3d-raytrace 591.6608+-7.5473 ? 592.9651+-3.7151 ? access-binary-trees 795.5130+-10.8424 793.5085+-8.7999 access-fannkuch 275.4784+-6.3699 ? 275.9520+-4.7614 ? access-nbody 511.2359+-2.0026 ? 564.8616+-132.3492 ? might be 1.1049x slower access-nsieve 372.9994+-7.8781 ? 377.8623+-10.1600 ? might be 1.0130x slower bitops-3bit-bits-in-byte 33.7945+-0.5523 ? 34.7181+-1.2863 ? might be 1.0273x slower bitops-bits-in-byte 75.5139+-2.0859 74.4353+-2.2063 might be 1.0145x faster bitops-nsieve-bits 400.7087+-5.0596 ? 404.2421+-4.6426 ? controlflow-recursive 434.8642+-7.6368 432.5672+-11.4218 crypto-aes 552.6134+-13.4819 ? 555.8508+-10.2219 ? crypto-md5 477.0904+-38.7731 441.8479+-10.3877 might be 1.0798x faster crypto-sha1 627.8020+-11.7838 ? 636.0140+-3.7494 ? might be 1.0131x slower date-format-tofte 483.9908+-4.0732 ? 493.7841+-13.1846 ? might be 1.0202x slower date-format-xparb 654.7215+-2.3337 ? 673.1677+-28.3510 ? might be 1.0282x slower hash-map 149.5927+-2.2721 ? 149.9875+-2.7215 ? math-cordic 478.0200+-4.8550 476.2201+-3.3067 math-partial-sums 463.1229+-17.7743 457.3290+-4.3433 might be 1.0127x faster math-spectral-norm 553.5833+-10.7053 548.6068+-4.4182 string-base64 372.4869+-3.3502 372.2262+-3.1138 string-fasta 362.9683+-2.7387 ! 369.0346+-2.3740 ! definitely 1.0167x slower string-tagcloud 175.8813+-1.8842 175.4689+-2.4896 <geometric> 385.3148+-2.5443 ? 386.6325+-3.6659 ? might be 1.0034x slower TipOfTree SimplerPutPath V8Spider: crypto 48.3583+-1.6707 47.2620+-1.8154 might be 1.0232x faster deltablue 76.8081+-5.8473 76.6888+-3.5455 earley-boyer 42.5542+-1.9330 42.4649+-1.6874 raytrace 30.9862+-1.3125 ? 31.5714+-1.9074 ? might be 1.0189x slower regexp 62.9048+-1.9933 62.4078+-2.2346 richards 54.5767+-1.7921 54.5111+-2.4276 splay 36.6508+-1.2448 ? 37.1499+-1.8278 ? might be 1.0136x slower <geometric> 48.2992+-0.5051 48.2790+-0.9665 might be 1.0004x faster TipOfTree SimplerPutPath Octane: encrypt 0.16732+-0.00339 ? 0.16752+-0.00427 ? decrypt 2.86374+-0.01761 2.85934+-0.01312 deltablue x2 0.13991+-0.00681 0.13773+-0.00214 might be 1.0158x faster earley 0.30236+-0.00889 ? 0.30315+-0.00357 ? boyer 4.35729+-0.09287 4.29697+-0.02793 might be 1.0140x faster navier-stokes x2 4.84524+-0.03780 4.83308+-0.02914 raytrace x2 0.85766+-0.00751 0.85675+-0.00718 richards x2 0.09054+-0.00269 0.08871+-0.00062 might be 1.0206x faster splay x2 0.34577+-0.00533 ? 0.34913+-0.00488 ? regexp x2 24.80801+-0.58684 24.01846+-0.58074 might be 1.0329x faster pdfjs x2 36.22038+-0.46126 ? 36.82654+-0.59569 ? might be 1.0167x slower mandreel x2 42.21075+-0.57211 ? 42.78202+-0.70537 ? might be 1.0135x slower gbemu x2 31.69517+-0.19861 31.37268+-0.29380 might be 1.0103x faster closure 0.57769+-0.00938 0.57329+-0.00382 jquery 7.27446+-0.07004 ? 7.29131+-0.13973 ? box2d x2 9.15209+-0.05120 9.13451+-0.08054 zlib x2 390.14674+-4.03088 384.91111+-4.52540 might be 1.0136x faster typescript x2 669.23653+-18.43588 661.06934+-3.11557 might be 1.0124x faster <geometric> 5.35324+-0.02595 5.32571+-0.02199 might be 1.0052x faster TipOfTree SimplerPutPath Kraken: ai-astar 126.888+-1.728 ? 129.795+-6.415 ? might be 1.0229x slower audio-beat-detection 50.168+-0.642 49.825+-0.405 audio-dft 97.170+-1.672 96.814+-1.352 audio-fft 35.317+-0.696 35.017+-0.336 audio-oscillator 55.972+-1.639 ? 56.191+-1.686 ? imaging-darkroom 60.206+-1.303 59.919+-0.476 imaging-desaturate 47.947+-0.470 47.841+-0.433 imaging-gaussian-blur 85.560+-1.587 85.218+-0.371 json-parse-financial 38.476+-0.846 37.503+-2.742 might be 1.0259x faster json-stringify-tinderbox 23.538+-1.135 23.473+-1.149 stanford-crypto-aes 40.521+-1.272 ? 40.620+-1.372 ? stanford-crypto-ccm 35.349+-1.150 35.253+-1.532 stanford-crypto-pbkdf2 95.618+-2.548 94.532+-0.436 might be 1.0115x faster stanford-crypto-sha256-iterative 37.448+-2.313 36.419+-1.280 might be 1.0283x faster <arithmetic> 59.298+-0.372 59.173+-0.409 might be 1.0021x faster TipOfTree SimplerPutPath JSRegress: abc-forward-loop-equal 31.1240+-2.3152 30.4501+-1.4001 might be 1.0221x faster abc-postfix-backward-loop 30.3663+-1.2112 ? 30.4505+-2.8870 ? abc-simple-backward-loop 29.2332+-1.3269 ? 29.9855+-1.6258 ? might be 1.0257x slower abc-simple-forward-loop 29.5632+-0.9530 29.0823+-0.8007 might be 1.0165x faster abc-skippy-loop 21.5726+-0.8527 21.5410+-1.3160 abs-boolean 2.4932+-0.0741 2.4524+-0.0712 might be 1.0166x faster adapt-to-double-divide 16.4488+-0.3674 16.3407+-0.8495 aliased-arguments-getbyval 1.2493+-0.0598 ? 1.2546+-0.0799 ? allocate-big-object 2.5250+-0.2779 2.2785+-0.0672 might be 1.1082x faster arguments-named-and-reflective 10.5913+-0.2545 10.4307+-0.2843 might be 1.0154x faster arguments-out-of-bounds 9.2409+-0.0655 ? 9.6485+-0.6504 ? might be 1.0441x slower arguments-strict-mode 9.6305+-0.5045 9.3240+-0.4646 might be 1.0329x faster arguments 8.8785+-0.4778 8.5950+-0.1037 might be 1.0330x faster arity-mismatch-inlining 0.8535+-0.0283 ? 0.8732+-0.0610 ? might be 1.0231x slower array-access-polymorphic-structure 7.0194+-0.4599 6.9615+-0.3084 array-nonarray-polymorhpic-access 23.9100+-0.7872 23.4508+-0.6370 might be 1.0196x faster array-prototype-every 75.8080+-1.3868 75.6228+-1.4798 array-prototype-forEach 82.5174+-18.1885 74.3130+-0.8883 might be 1.1104x faster array-prototype-map 83.2347+-1.6335 80.8219+-1.1811 might be 1.0299x faster array-prototype-reduce 72.2549+-1.6369 70.9947+-0.9553 might be 1.0178x faster array-prototype-reduceRight 72.3810+-1.8402 71.3413+-1.2750 might be 1.0146x faster array-prototype-some 75.8256+-1.7484 ? 78.6589+-4.2983 ? might be 1.0374x slower array-splice-contiguous 20.9038+-0.7468 ? 20.9072+-0.4977 ? array-with-double-add 3.4759+-0.1073 ? 3.5704+-0.4296 ? might be 1.0272x slower array-with-double-increment 3.0865+-0.0492 3.0754+-0.1673 array-with-double-mul-add 4.2738+-0.2057 4.2246+-0.0868 might be 1.0116x faster array-with-double-sum 3.4388+-0.5996 3.1820+-0.0826 might be 1.0807x faster array-with-int32-add-sub 5.8158+-0.2093 5.6547+-0.1347 might be 1.0285x faster array-with-int32-or-double-sum 3.2412+-0.1119 3.2230+-0.0593 ArrayBuffer-DataView-alloc-large-long-lived 25.6715+-0.1710 ? 26.4493+-1.5970 ? might be 1.0303x slower ArrayBuffer-DataView-alloc-long-lived 12.1870+-0.6928 11.8700+-0.1566 might be 1.0267x faster ArrayBuffer-Int32Array-byteOffset 3.5689+-0.1969 ? 3.5861+-0.1771 ? ArrayBuffer-Int8Array-alloc-large-long-lived 26.0708+-0.8206 26.0663+-0.7966 ArrayBuffer-Int8Array-alloc-long-lived-buffer 20.2666+-2.2198 19.5059+-0.9508 might be 1.0390x faster ArrayBuffer-Int8Array-alloc-long-lived 11.6762+-0.6253 11.3704+-0.5844 might be 1.0269x faster ArrayBuffer-Int8Array-alloc 9.5243+-0.5668 ? 9.8371+-0.4231 ? might be 1.0328x slower arrowfunction-call 11.1782+-0.6956 11.1534+-0.7790 asmjs_bool_bug 7.4659+-0.1765 ? 7.6262+-0.2354 ? might be 1.0215x slower assign-custom-setter-polymorphic 2.3675+-0.0290 ? 2.3942+-0.0473 ? might be 1.0113x slower assign-custom-setter 3.1586+-0.0336 ! 3.3219+-0.1164 ! definitely 1.0517x slower basic-set 7.5695+-0.8525 ? 7.6742+-0.3093 ? might be 1.0138x slower big-int-mul 3.4558+-0.0507 ? 3.4638+-0.0440 ? boolean-test 2.9777+-0.1112 ? 3.0238+-0.2249 ? might be 1.0155x slower branch-fold 3.7196+-0.1533 3.5879+-0.0777 might be 1.0367x faster branch-on-string-as-boolean 16.7180+-0.8844 ? 18.0432+-0.4975 ? might be 1.0793x slower by-val-generic 2.4413+-0.0619 ? 2.4482+-0.0587 ? call-spread-apply 26.4749+-0.8826 ? 27.4182+-1.5633 ? might be 1.0356x slower call-spread-call 21.0172+-0.7173 ? 21.3829+-1.0514 ? might be 1.0174x slower captured-assignments 0.4311+-0.0393 ? 0.4357+-0.0324 ? might be 1.0107x slower cast-int-to-double 5.1774+-0.2405 5.0662+-0.0806 might be 1.0220x faster cell-argument 5.8328+-0.3480 5.8107+-0.2472 cfg-simplify 2.8688+-0.0513 2.8257+-0.0498 might be 1.0152x faster chain-getter-access 8.5730+-0.2883 8.3754+-0.1303 might be 1.0236x faster cmpeq-obj-to-obj-other 12.3461+-1.0902 12.0895+-1.2623 might be 1.0212x faster constant-test 4.9102+-0.1330 4.7642+-0.0176 might be 1.0306x faster create-lots-of-functions 9.9830+-1.3449 9.4967+-0.6858 might be 1.0512x faster cse-new-array-buffer 2.3451+-0.1856 2.2707+-0.1836 might be 1.0328x faster cse-new-array 2.3816+-0.0988 2.3313+-0.1106 might be 1.0216x faster DataView-custom-properties 30.8785+-1.2190 ? 31.3129+-1.2222 ? might be 1.0141x slower delay-tear-off-arguments-strictmode 11.7926+-0.2735 11.7717+-0.2627 deltablue-varargs 173.8668+-4.4075 170.2944+-4.5829 might be 1.0210x faster destructuring-arguments 160.2000+-3.9942 158.1260+-2.9214 might be 1.0131x faster destructuring-parameters-overridden-by-function 0.5510+-0.2172 0.4715+-0.0354 might be 1.1685x faster destructuring-swap 4.7647+-0.0397 4.7619+-0.0351 direct-arguments-getbyval 1.1926+-0.0517 ? 1.2379+-0.1082 ? might be 1.0380x slower div-boolean-double 5.3681+-0.1068 ? 5.6671+-0.4602 ? might be 1.0557x slower div-boolean 8.2008+-0.2647 8.1611+-0.1330 double-get-by-val-out-of-bounds 4.6706+-0.6003 4.4996+-0.1571 might be 1.0380x faster double-pollution-getbyval 8.8752+-0.3220 8.6606+-0.0888 might be 1.0248x faster double-pollution-putbyoffset 3.5950+-0.0252 ? 3.7397+-0.2680 ? might be 1.0403x slower double-real-use 23.8542+-0.7163 ? 24.6846+-1.2839 ? might be 1.0348x slower double-to-int32-typed-array-no-inline 2.1869+-0.0925 ? 2.2149+-0.1043 ? might be 1.0128x slower double-to-int32-typed-array 2.0574+-0.0683 2.0404+-0.0458 double-to-uint32-typed-array-no-inline 2.2911+-0.1188 2.2465+-0.1173 might be 1.0198x faster double-to-uint32-typed-array 2.2375+-0.3229 2.1367+-0.1424 might be 1.0472x faster elidable-new-object-dag 35.0214+-1.9241 33.6957+-1.0493 might be 1.0393x faster elidable-new-object-roflcopter 32.8034+-0.8106 ? 32.8256+-1.5483 ? elidable-new-object-then-call 31.5361+-1.0750 31.4079+-0.9203 elidable-new-object-tree 37.3628+-0.8620 37.1302+-1.5373 empty-string-plus-int 4.8310+-0.2412 ? 5.5710+-0.6920 ? might be 1.1532x slower emscripten-cube2hash 26.9150+-1.3839 ? 28.2801+-2.2707 ? might be 1.0507x slower exit-length-on-plain-object 15.0349+-0.4529 ? 15.1326+-0.6428 ? external-arguments-getbyval 1.3042+-0.2041 1.2106+-0.1166 might be 1.0773x faster external-arguments-putbyval 2.4492+-0.3521 2.2196+-0.1282 might be 1.1035x faster fixed-typed-array-storage-var-index 1.1820+-0.0219 ? 1.2327+-0.0688 ? might be 1.0429x slower fixed-typed-array-storage 0.9594+-0.0975 0.9353+-0.0915 might be 1.0257x faster Float32Array-matrix-mult 4.0170+-0.0896 ? 4.0402+-0.1076 ? Float32Array-to-Float64Array-set 49.2087+-1.7974 ? 49.9964+-2.7872 ? might be 1.0160x slower Float64Array-alloc-long-lived 59.7202+-2.0971 ? 60.3405+-2.2037 ? might be 1.0104x slower Float64Array-to-Int16Array-set 58.9578+-1.6201 ? 60.2605+-2.9097 ? might be 1.0221x slower fold-double-to-int 12.4453+-0.5988 12.2906+-0.4347 might be 1.0126x faster fold-get-by-id-to-multi-get-by-offset-rare-int 10.4577+-1.7976 ? 11.8353+-1.0651 ? might be 1.1317x slower fold-get-by-id-to-multi-get-by-offset 9.1526+-1.6608 ? 9.7150+-0.2820 ? might be 1.0614x slower fold-multi-get-by-offset-to-get-by-offset 9.3267+-1.4652 7.6806+-2.5600 might be 1.2143x faster fold-multi-get-by-offset-to-poly-get-by-offset 8.6034+-1.9855 8.2935+-1.6092 might be 1.0374x faster fold-multi-put-by-offset-to-poly-put-by-offset 10.0243+-0.9944 9.5217+-1.8453 might be 1.0528x faster fold-multi-put-by-offset-to-put-by-offset 10.6790+-2.8189 ? 11.5736+-1.6873 ? might be 1.0838x slower fold-multi-put-by-offset-to-replace-or-transition-put-by-offset 9.5153+-0.6102 9.1377+-0.1505 might be 1.0413x faster fold-put-by-id-to-multi-put-by-offset 11.2713+-1.3190 ? 11.3493+-1.3625 ? fold-put-by-val-with-string-to-multi-put-by-offset 12.2257+-1.1101 11.5007+-1.0224 might be 1.0630x faster fold-put-by-val-with-symbol-to-multi-put-by-offset 11.6285+-1.4503 ? 11.9628+-1.9921 ? might be 1.0287x slower fold-put-structure 8.1910+-1.0471 ? 8.2600+-0.1756 ? for-of-iterate-array-entries 10.6944+-0.2150 ? 11.1614+-1.1555 ? might be 1.0437x slower for-of-iterate-array-keys 3.6174+-0.8075 3.3477+-0.0943 might be 1.0806x faster for-of-iterate-array-values 3.3522+-0.1253 3.3256+-0.0793 fround 17.9018+-0.8752 ? 18.2906+-1.8751 ? might be 1.0217x slower ftl-library-inlining-dataview 56.6535+-0.8474 ? 56.6785+-1.4596 ? ftl-library-inlining 96.4855+-0.3888 ? 97.4093+-1.7885 ? function-call 10.7961+-0.1577 10.7055+-0.2884 function-dot-apply 2.1750+-0.3430 ? 2.2953+-0.2904 ? might be 1.0553x slower function-test 2.6986+-0.0689 ? 2.7022+-0.0659 ? function-with-eval 85.3630+-1.3438 85.1863+-3.7707 gcse-poly-get-less-obvious 21.5798+-0.6303 ? 21.8790+-0.5789 ? might be 1.0139x slower gcse-poly-get 23.1087+-2.5651 ? 23.2740+-2.5257 ? gcse 3.3438+-0.0251 ? 3.5098+-0.1540 ? might be 1.0496x slower get-by-id-bimorphic-check-structure-elimination-simple 2.5878+-0.0383 ? 2.6042+-0.0395 ? get-by-id-bimorphic-check-structure-elimination 4.6482+-0.0391 ? 4.8758+-0.6647 ? might be 1.0490x slower get-by-id-chain-from-try-block 2.4042+-0.0421 ? 2.5238+-0.2852 ? might be 1.0498x slower get-by-id-check-structure-elimination 3.8880+-0.1049 ? 3.9797+-0.2437 ? might be 1.0236x slower get-by-id-proto-or-self 15.4588+-0.5324 ? 16.3663+-1.4267 ? might be 1.0587x slower get-by-id-quadmorphic-check-structure-elimination-simple 2.8881+-0.0757 ? 2.9083+-0.0920 ? get-by-id-self-or-proto 15.9906+-1.5655 15.6370+-1.4439 might be 1.0226x faster get-by-val-out-of-bounds 4.2206+-0.1684 4.1545+-0.1627 might be 1.0159x faster get-by-val-with-string-bimorphic-check-structure-elimination-simple 2.7022+-0.0765 2.6905+-0.0341 get-by-val-with-string-bimorphic-check-structure-elimination 6.0925+-0.2128 5.8852+-0.0378 might be 1.0352x faster get-by-val-with-string-chain-from-try-block 2.4415+-0.0601 ? 2.4455+-0.0570 ? get-by-val-with-string-check-structure-elimination 5.2255+-0.2147 5.1694+-0.0914 might be 1.0109x faster get-by-val-with-string-proto-or-self 16.2204+-0.8525 15.6285+-0.5817 might be 1.0379x faster get-by-val-with-string-quadmorphic-check-structure-elimination-simple 3.3348+-0.4552 3.1297+-0.1374 might be 1.0655x faster get-by-val-with-string-self-or-proto 16.1639+-1.0648 15.8643+-1.5540 might be 1.0189x faster get-by-val-with-symbol-bimorphic-check-structure-elimination-simple 2.9561+-0.0684 2.8809+-0.0317 might be 1.0261x faster get-by-val-with-symbol-bimorphic-check-structure-elimination 12.2534+-0.0928 ? 12.5938+-0.2972 ? might be 1.0278x slower get-by-val-with-symbol-chain-from-try-block 2.5067+-0.1312 ? 2.5136+-0.1913 ? get-by-val-with-symbol-check-structure-elimination 10.9850+-0.0493 ? 11.0123+-0.0577 ? get-by-val-with-symbol-proto-or-self 15.3425+-0.5165 ? 15.7916+-0.9816 ? might be 1.0293x slower get-by-val-with-symbol-quadmorphic-check-structure-elimination-simple 3.6705+-0.0539 ? 3.8054+-0.2875 ? might be 1.0367x slower get-by-val-with-symbol-self-or-proto 15.7792+-1.0178 ? 16.0565+-0.7904 ? might be 1.0176x slower get_callee_monomorphic 2.5128+-0.2944 2.3202+-0.1841 might be 1.0830x faster get_callee_polymorphic 3.3790+-0.1252 ? 3.5839+-0.1703 ? might be 1.0606x slower getter-no-activation 4.9157+-0.2552 4.8009+-0.2377 might be 1.0239x faster getter-prototype 7.8921+-0.1475 7.8693+-0.3285 getter-richards-try-catch 988.5895+-9.2441 984.8180+-24.7334 getter-richards 116.2349+-7.2094 ? 116.4076+-9.7245 ? getter 6.0014+-0.9337 ? 6.4010+-0.7798 ? might be 1.0666x slower global-object-access-with-mutating-structure 5.6621+-0.2019 ? 5.8916+-0.4774 ? might be 1.0405x slower global-var-const-infer-fire-from-opt 0.8841+-0.1311 0.8482+-0.0689 might be 1.0423x faster global-var-const-infer 0.6439+-0.0285 0.6412+-0.0211 hard-overflow-check-equal 28.5472+-1.3421 28.3611+-1.7982 hard-overflow-check 27.3359+-0.2516 ? 27.7917+-0.4603 ? might be 1.0167x slower HashMap-put-get-iterate-keys 26.5159+-2.2192 25.4065+-1.6120 might be 1.0437x faster HashMap-put-get-iterate 28.4772+-1.4592 27.8341+-0.9604 might be 1.0231x faster HashMap-string-put-get-iterate 24.1648+-1.6613 ? 25.7485+-2.1486 ? might be 1.0655x slower hoist-make-rope 8.8420+-0.8777 ? 8.8681+-0.9053 ? hoist-poly-check-structure-effectful-loop 3.7158+-0.2632 ? 3.7347+-0.1728 ? hoist-poly-check-structure 3.1002+-0.0676 ? 3.3950+-0.4925 ? might be 1.0951x slower imul-double-only 7.6105+-0.4877 ? 7.6310+-0.5411 ? imul-int-only 8.1093+-0.9172 ? 8.4431+-0.7783 ? might be 1.0412x slower imul-mixed 6.8530+-0.2198 ? 7.0945+-0.5621 ? might be 1.0352x slower in-four-cases 17.4873+-1.0079 16.9604+-0.3925 might be 1.0311x faster in-one-case-false 9.5947+-0.3957 ? 9.8575+-0.8974 ? might be 1.0274x slower in-one-case-true 9.7429+-0.9300 9.6483+-0.6758 in-two-cases 9.8130+-0.3681 9.7472+-0.4332 indexed-properties-in-objects 2.7985+-0.0219 ? 2.8457+-0.0730 ? might be 1.0169x slower infer-closure-const-then-mov-no-inline 3.7861+-0.3150 3.5515+-0.0705 might be 1.0660x faster infer-closure-const-then-mov 18.7323+-0.6335 ? 18.7792+-1.1248 ? infer-closure-const-then-put-to-scope-no-inline 10.8452+-0.1591 ? 11.0126+-0.1248 ? might be 1.0154x slower infer-closure-const-then-put-to-scope 23.5568+-2.0508 22.6897+-1.1348 might be 1.0382x faster infer-closure-const-then-reenter-no-inline 48.7842+-1.9409 ? 48.7922+-1.5856 ? infer-closure-const-then-reenter 23.6844+-0.6251 23.4492+-0.7171 might be 1.0100x faster infer-constant-global-property 3.3874+-0.0612 ? 3.4832+-0.0879 ? might be 1.0283x slower infer-constant-property 2.6713+-0.1403 2.6034+-0.0525 might be 1.0261x faster infer-one-time-closure-ten-vars 7.7928+-0.6903 7.7786+-0.2626 infer-one-time-closure-two-vars 7.5607+-0.5519 7.4326+-0.3357 might be 1.0172x faster infer-one-time-closure 7.4395+-0.1484 7.3341+-0.4164 might be 1.0144x faster infer-one-time-deep-closure 10.9277+-0.5981 ? 11.2007+-0.5617 ? might be 1.0250x slower inline-arguments-access 3.6995+-0.2501 ? 3.8199+-0.4754 ? might be 1.0326x slower inline-arguments-aliased-access 3.5390+-0.1364 ? 3.6019+-0.0652 ? might be 1.0178x slower inline-arguments-local-escape 3.5760+-0.0961 ? 3.7084+-0.2365 ? might be 1.0370x slower inline-get-scoped-var 4.6024+-0.2209 ? 4.6099+-0.1965 ? inlined-put-by-id-transition 9.6954+-0.9802 9.3885+-0.5677 might be 1.0327x faster inlined-put-by-val-with-string-transition 42.0626+-1.4184 40.6265+-1.2038 might be 1.0354x faster inlined-put-by-val-with-symbol-transition 41.6254+-2.3220 40.2871+-2.4252 might be 1.0332x faster int-or-other-abs-then-get-by-val 4.5507+-0.0738 ? 4.5740+-0.2443 ? int-or-other-abs-zero-then-get-by-val 15.3571+-0.3657 ? 15.8780+-0.8846 ? might be 1.0339x slower int-or-other-add-then-get-by-val 4.8512+-0.5442 4.6492+-0.4274 might be 1.0434x faster int-or-other-add 4.9350+-0.0844 ? 5.0074+-0.1514 ? might be 1.0147x slower int-or-other-div-then-get-by-val 3.7154+-0.0427 ? 3.7220+-0.0788 ? int-or-other-max-then-get-by-val 3.9396+-0.1628 3.8970+-0.0477 might be 1.0109x faster int-or-other-min-then-get-by-val 3.7450+-0.0356 ? 4.0613+-0.5089 ? might be 1.0844x slower int-or-other-mod-then-get-by-val 3.5112+-0.1403 ? 3.6037+-0.3733 ? might be 1.0264x slower int-or-other-mul-then-get-by-val 3.6514+-0.1779 ? 3.7807+-0.3063 ? might be 1.0354x slower int-or-other-neg-then-get-by-val 4.3595+-0.5040 4.0124+-0.0444 might be 1.0865x faster int-or-other-neg-zero-then-get-by-val 16.2285+-1.4224 15.3628+-0.3810 might be 1.0563x faster int-or-other-sub-then-get-by-val 4.3797+-0.0466 ? 4.5299+-0.4640 ? might be 1.0343x slower int-or-other-sub 3.4329+-0.0518 ? 3.4353+-0.0598 ? int-overflow-local 4.2666+-0.3743 4.2263+-0.3509 Int16Array-alloc-long-lived 43.7890+-1.4869 ? 44.1681+-2.1129 ? Int16Array-bubble-sort-with-byteLength 16.9350+-0.3247 ! 20.4690+-1.4552 ! definitely 1.2087x slower Int16Array-bubble-sort 17.6527+-1.2882 17.0944+-0.6039 might be 1.0327x faster Int16Array-load-int-mul 1.4190+-0.0762 ? 1.6014+-0.3656 ? might be 1.1285x slower Int16Array-to-Int32Array-set 46.5149+-2.2783 46.3017+-1.0179 Int32Array-alloc-large 12.6820+-1.0257 12.6135+-0.6826 Int32Array-alloc-long-lived 52.3064+-7.8335 48.9578+-1.3061 might be 1.0684x faster Int32Array-alloc 3.0718+-0.3252 2.7528+-0.2562 might be 1.1159x faster Int32Array-Int8Array-view-alloc 6.1065+-0.4221 ? 6.1569+-0.3978 ? int52-spill 4.5057+-0.0812 ? 4.6123+-0.1163 ? might be 1.0237x slower Int8Array-alloc-long-lived 38.7169+-1.0729 38.3855+-0.9333 Int8Array-load-with-byteLength 3.4045+-0.0769 ? 3.4191+-0.1178 ? Int8Array-load 3.3216+-0.0605 ? 3.3711+-0.1056 ? might be 1.0149x slower integer-divide 10.6351+-0.3788 10.3204+-0.1809 might be 1.0305x faster integer-modulo 1.6097+-0.0782 ? 1.6648+-0.2123 ? might be 1.0343x slower is-boolean-fold-tricky 3.8448+-0.2169 ? 3.8872+-0.3028 ? might be 1.0110x slower is-boolean-fold 2.6520+-0.0394 2.6265+-0.0875 is-function-fold-tricky-internal-function 9.2745+-0.1023 ? 9.5977+-0.3926 ? might be 1.0348x slower is-function-fold-tricky 4.0870+-0.1496 ? 4.0935+-0.0459 ? is-function-fold 2.6692+-0.0504 ? 2.6721+-0.0695 ? is-number-fold-tricky 3.9912+-0.1082 3.9509+-0.0564 might be 1.0102x faster is-number-fold 2.6656+-0.0632 2.6334+-0.0382 might be 1.0122x faster is-object-or-null-fold-functions 2.7201+-0.0864 2.7197+-0.1477 is-object-or-null-fold-less-tricky 4.0358+-0.1337 ? 4.1363+-0.1686 ? might be 1.0249x slower is-object-or-null-fold-tricky 4.8367+-0.2195 4.8057+-0.0915 is-object-or-null-fold 2.6700+-0.0412 ? 2.7114+-0.1198 ? might be 1.0155x slower is-object-or-null-trickier-function 4.1442+-0.1543 4.1310+-0.1900 is-object-or-null-trickier-internal-function 10.0459+-0.6259 9.7509+-0.2360 might be 1.0303x faster is-object-or-null-tricky-function 4.1870+-0.3248 ? 4.2946+-0.6598 ? might be 1.0257x slower is-object-or-null-tricky-internal-function 7.5673+-0.3130 7.2372+-0.2033 might be 1.0456x faster is-string-fold-tricky 3.9427+-0.0634 ? 3.9959+-0.0576 ? might be 1.0135x slower is-string-fold 2.6391+-0.0446 ? 2.7794+-0.1678 ? might be 1.0531x slower is-undefined-fold-tricky 3.3368+-0.0928 ? 3.6723+-0.8981 ? might be 1.1006x slower is-undefined-fold 2.7941+-0.1263 2.6926+-0.1416 might be 1.0377x faster JSONP-negative-0 0.2553+-0.0074 0.2454+-0.0046 might be 1.0405x faster large-int-captured 4.2113+-0.3226 4.1780+-0.2991 large-int-neg 13.9733+-0.5132 ? 14.0009+-0.3815 ? large-int 13.4235+-0.4399 13.3840+-0.4535 load-varargs-elimination 21.4317+-1.2962 20.9780+-0.6660 might be 1.0216x faster logical-not-weird-types 3.0488+-0.0543 ? 3.0696+-0.0982 ? logical-not 4.3687+-0.0783 4.3597+-0.1925 lots-of-fields 8.8830+-0.2838 ? 9.2035+-0.4940 ? might be 1.0361x slower make-indexed-storage 2.8757+-0.2307 2.7916+-0.1153 might be 1.0301x faster make-rope-cse 3.7414+-0.3610 ? 3.8092+-0.4055 ? might be 1.0181x slower marsaglia-larger-ints 32.3546+-1.3815 ? 33.0549+-1.3582 ? might be 1.0216x slower marsaglia-osr-entry 21.7100+-0.5046 ? 21.7769+-0.7385 ? math-with-out-of-bounds-array-values 21.3008+-0.3411 ? 21.9972+-0.9768 ? might be 1.0327x slower max-boolean 2.5887+-0.0299 ? 2.6678+-0.1040 ? might be 1.0305x slower method-on-number 15.7077+-0.6259 15.6193+-0.3283 min-boolean 2.6998+-0.2001 2.6136+-0.0688 might be 1.0330x faster minus-boolean-double 3.0553+-0.0472 ? 3.2167+-0.1352 ? might be 1.0528x slower minus-boolean 2.3754+-0.1337 2.3314+-0.0384 might be 1.0189x faster misc-strict-eq 29.9679+-1.5188 27.8944+-1.0284 might be 1.0743x faster mod-boolean-double 11.1141+-0.2868 ? 11.2596+-0.4948 ? might be 1.0131x slower mod-boolean 8.4957+-0.5266 8.4427+-0.2956 mul-boolean-double 3.5693+-0.0451 ? 3.6584+-0.1746 ? might be 1.0250x slower mul-boolean 2.8610+-0.0531 2.7999+-0.0486 might be 1.0218x faster neg-boolean 3.1493+-0.1867 ? 3.2025+-0.1275 ? might be 1.0169x slower negative-zero-divide 0.3451+-0.0261 0.3354+-0.0130 might be 1.0288x faster negative-zero-modulo 0.3267+-0.0056 ? 0.3344+-0.0187 ? might be 1.0238x slower negative-zero-negate 0.4218+-0.2464 0.3280+-0.0248 might be 1.2858x faster nested-function-parsing 45.5972+-1.7022 45.0191+-0.8866 might be 1.0128x faster new-array-buffer-dead 87.8387+-1.9651 86.7271+-0.7245 might be 1.0128x faster new-array-buffer-push 5.9877+-0.4086 ? 6.1186+-0.1861 ? might be 1.0219x slower new-array-dead 15.8818+-1.4622 15.0636+-0.9911 might be 1.0543x faster new-array-push 3.5423+-0.2763 ? 3.5485+-0.2862 ? no-inline-constructor 31.9204+-1.1590 ? 32.6326+-1.3792 ? might be 1.0223x slower number-test 2.9546+-0.0627 2.9450+-0.0468 object-closure-call 4.8563+-0.1139 ? 4.9154+-0.1290 ? might be 1.0122x slower object-get-own-property-symbols-on-large-array 4.2769+-0.2901 ? 4.3917+-0.6324 ? might be 1.0268x slower object-test 2.7627+-0.0877 2.6631+-0.0534 might be 1.0374x faster obvious-sink-pathology-taken 97.5841+-0.8140 ? 97.6783+-1.6911 ? obvious-sink-pathology 92.2847+-1.2265 ? 92.3541+-0.7299 ? obviously-elidable-new-object 28.0870+-0.2771 ? 29.0813+-1.3552 ? might be 1.0354x slower plus-boolean-arith 2.4518+-0.0802 ? 2.4653+-0.1491 ? plus-boolean-double 3.0905+-0.0112 ? 3.1652+-0.1146 ? might be 1.0242x slower plus-boolean 2.6922+-0.2812 2.5325+-0.0631 might be 1.0631x faster poly-chain-access-different-prototypes-simple 2.7792+-0.4627 2.5903+-0.0866 might be 1.0729x faster poly-chain-access-different-prototypes 2.5193+-0.0454 ? 2.5625+-0.0560 ? might be 1.0172x slower poly-chain-access-simpler 2.6469+-0.0909 2.5909+-0.0645 might be 1.0216x faster poly-chain-access 2.5372+-0.0587 2.4849+-0.0385 might be 1.0210x faster poly-stricteq 49.6910+-0.9373 ? 55.3575+-15.3564 ? might be 1.1140x slower polymorphic-array-call 1.2867+-0.0469 ? 1.3428+-0.2550 ? might be 1.0436x slower polymorphic-get-by-id 3.1853+-0.5936 2.8733+-0.1211 might be 1.1086x faster polymorphic-put-by-id 28.4878+-0.6956 28.3821+-1.1617 polymorphic-put-by-val-with-string 29.6341+-2.1080 29.0091+-1.6158 might be 1.0215x faster polymorphic-put-by-val-with-symbol 29.0791+-1.6725 ? 29.2801+-1.0682 ? polymorphic-structure 12.9622+-1.3114 12.8423+-1.0227 polyvariant-monomorphic-get-by-id 6.8554+-1.1159 6.2793+-0.7934 might be 1.0917x faster proto-getter-access 8.4306+-0.1719 8.3401+-0.1702 might be 1.0108x faster prototype-access-with-mutating-prototype 5.3208+-0.1613 ? 5.4528+-0.2851 ? might be 1.0248x slower put-by-id-replace-and-transition 7.4833+-0.3607 ? 8.4059+-0.8343 ? might be 1.1233x slower put-by-id-slightly-polymorphic 2.6883+-0.0720 2.6840+-0.0602 put-by-id 9.5776+-0.3670 ? 9.9238+-0.9628 ? might be 1.0361x slower put-by-val-direct 0.3326+-0.0200 ? 0.3796+-0.0892 ? might be 1.1412x slower put-by-val-large-index-blank-indexing-type 5.3602+-0.4214 5.2416+-0.3287 might be 1.0226x faster put-by-val-machine-int 2.5098+-0.2536 2.4253+-0.1119 might be 1.0348x faster put-by-val-with-string-replace-and-transition 10.3461+-0.3316 ? 10.4257+-1.2379 ? put-by-val-with-string-slightly-polymorphic 2.9441+-0.1004 2.9097+-0.0859 might be 1.0118x faster put-by-val-with-string 10.6089+-1.1933 10.4230+-0.7275 might be 1.0178x faster put-by-val-with-symbol-replace-and-transition 12.3831+-0.7039 11.7854+-0.4911 might be 1.0507x faster put-by-val-with-symbol-slightly-polymorphic 3.2172+-0.0858 3.2004+-0.1169 put-by-val-with-symbol 10.9246+-0.9605 10.7673+-0.9121 might be 1.0146x faster rare-osr-exit-on-local 13.9286+-0.4678 13.4974+-0.2639 might be 1.0319x faster raytrace-with-empty-try-catch 5.0987+-0.0820 5.0678+-0.0885 raytrace-with-try-catch 9.7770+-0.1335 9.6529+-0.2125 might be 1.0129x faster register-pressure-from-osr 16.5005+-0.3010 16.4755+-0.6238 repeat-multi-get-by-offset 21.8426+-0.7611 ? 21.9126+-0.5598 ? richards-empty-try-catch 72.3240+-1.5042 72.0399+-2.5508 richards-try-catch 239.7158+-3.5785 237.6239+-2.6632 setter-prototype 7.7324+-0.1783 ? 7.7837+-0.2833 ? setter 5.5273+-0.7478 5.2602+-0.1457 might be 1.0508x faster simple-activation-demo 25.0794+-0.8204 24.1632+-0.7573 might be 1.0379x faster simple-getter-access 10.7924+-0.4605 10.6514+-0.2641 might be 1.0132x faster simple-poly-call-nested 8.7078+-0.5088 8.5845+-0.6312 might be 1.0144x faster simple-poly-call 1.3068+-0.0316 ? 1.3083+-0.1096 ? sin-boolean 20.9993+-1.4151 ? 21.0657+-1.5600 ? singleton-scope 64.1461+-1.2894 ? 64.3475+-0.5541 ? sink-function 9.9991+-1.1061 9.9012+-0.3695 sink-huge-activation 17.3971+-0.9185 16.9467+-0.6435 might be 1.0266x faster sinkable-new-object-dag 54.5467+-1.0004 ? 55.0567+-1.0581 ? sinkable-new-object-taken 44.1518+-2.5116 43.5515+-2.2610 might be 1.0138x faster sinkable-new-object 30.1760+-1.3233 ? 30.3503+-1.6064 ? slow-array-profile-convergence 2.5313+-0.2544 ? 2.6158+-0.2837 ? might be 1.0334x slower slow-convergence 2.3475+-0.0282 ? 2.4161+-0.1314 ? might be 1.0292x slower slow-ternaries 17.1063+-0.2807 ? 17.5118+-0.6358 ? might be 1.0237x slower sorting-benchmark 16.7992+-0.5438 ? 16.9448+-0.4834 ? sparse-conditional 1.1951+-0.0971 1.1863+-0.0597 splice-to-remove 11.9344+-0.3058 ? 12.7351+-0.7009 ? might be 1.0671x slower string-char-code-at 13.4112+-0.3337 13.3388+-0.5350 string-concat-object 2.1232+-0.0588 ? 2.2289+-0.1419 ? might be 1.0498x slower string-concat-pair-object 2.1071+-0.1212 ? 2.2041+-0.1285 ? might be 1.0461x slower string-concat-pair-simple 9.2939+-0.7066 ? 9.8210+-0.9734 ? might be 1.0567x slower string-concat-simple 10.2297+-1.2191 9.7924+-0.8654 might be 1.0447x faster string-cons-repeat 6.4616+-0.0846 ? 6.6652+-0.4610 ? might be 1.0315x slower string-cons-tower 6.5574+-0.2100 ? 6.6185+-0.4368 ? string-equality 15.9157+-0.5821 ? 16.1047+-0.6260 ? might be 1.0119x slower string-get-by-val-big-char 6.8041+-0.5701 6.5305+-0.2359 might be 1.0419x faster string-get-by-val-out-of-bounds-insane 3.2231+-0.2023 3.0901+-0.0851 might be 1.0430x faster string-get-by-val-out-of-bounds 4.1715+-0.4537 3.9517+-0.0654 might be 1.0556x faster string-get-by-val 3.1058+-0.7267 2.8564+-0.1030 might be 1.0873x faster string-hash 1.8136+-0.0251 ? 1.8376+-0.0238 ? might be 1.0133x slower string-long-ident-equality 13.5824+-0.3924 ? 14.5070+-1.0724 ? might be 1.0681x slower string-out-of-bounds 10.2027+-0.1596 ? 10.2155+-0.4792 ? string-repeat-arith 26.7487+-1.0581 26.5970+-0.9475 string-sub 55.2487+-1.3794 54.0056+-0.9671 might be 1.0230x faster string-test 2.8169+-0.0305 2.7826+-0.0650 might be 1.0123x faster string-var-equality 24.9091+-0.6941 ? 25.6539+-0.7007 ? might be 1.0299x slower structure-hoist-over-transitions 2.5636+-0.4415 2.4499+-0.1988 might be 1.0464x faster substring-concat-weird 35.4772+-0.8962 ? 35.7562+-1.5984 ? substring-concat 40.1775+-2.0860 ? 40.2559+-1.2769 ? substring 46.6287+-5.0892 45.4709+-1.1378 might be 1.0255x faster switch-char-constant 2.6684+-0.0408 2.6646+-0.0705 switch-char 6.5760+-1.0737 ? 6.7502+-1.0730 ? might be 1.0265x slower switch-constant 8.5647+-1.1581 8.5088+-1.3340 switch-string-basic-big-var 14.3324+-0.2370 ? 15.0182+-0.9196 ? might be 1.0478x slower switch-string-basic-big 14.4681+-0.4012 ? 14.6738+-0.4345 ? might be 1.0142x slower switch-string-basic-var 13.9053+-0.8372 13.3035+-0.2426 might be 1.0452x faster switch-string-basic 12.8811+-0.5719 ? 13.0268+-0.6688 ? might be 1.0113x slower switch-string-big-length-tower-var 18.3865+-1.2151 18.0925+-0.6305 might be 1.0163x faster switch-string-length-tower-var 13.5498+-0.8284 ? 13.5569+-0.5694 ? switch-string-length-tower 11.3538+-0.3290 ? 11.6910+-0.4895 ? might be 1.0297x slower switch-string-short 11.5105+-0.5655 ? 11.6159+-0.4828 ? switch 11.3587+-0.9161 11.2852+-0.9262 tear-off-arguments-simple 2.9930+-0.0833 ? 3.0522+-0.1159 ? might be 1.0198x slower tear-off-arguments 3.9771+-0.1129 ? 4.0864+-0.2856 ? might be 1.0275x slower temporal-structure 11.7991+-0.2827 ? 11.9939+-0.5661 ? might be 1.0165x slower to-int32-boolean 12.5715+-0.3114 ? 12.7070+-0.8261 ? might be 1.0108x slower try-catch-get-by-val-cloned-arguments 9.0809+-0.6892 8.7898+-0.1226 might be 1.0331x faster try-catch-get-by-val-direct-arguments 2.3163+-0.4996 2.2509+-0.3962 might be 1.0291x faster try-catch-get-by-val-scoped-arguments 4.4937+-0.1731 ? 4.5391+-0.5343 ? might be 1.0101x slower typed-array-get-set-by-val-profiling 27.5318+-0.7653 26.7850+-0.5899 might be 1.0279x faster undefined-property-access 219.4653+-6.5850 218.8767+-6.4179 undefined-test 2.9961+-0.1105 2.9443+-0.0647 might be 1.0176x faster unprofiled-licm 9.3355+-0.2414 ? 9.4221+-0.2219 ? v8-raytrace-with-empty-try-catch 23.9919+-0.5608 23.6311+-0.3717 might be 1.0153x faster v8-raytrace-with-try-catch 61.4048+-1.3263 ? 62.3697+-3.0825 ? might be 1.0157x slower varargs-call 13.1865+-0.3395 13.0844+-0.1463 varargs-construct-inline 22.3252+-0.5502 21.8190+-0.5570 might be 1.0232x faster varargs-construct 20.9810+-1.0368 20.9582+-0.7861 varargs-inline 8.8227+-0.3422 8.7943+-0.1878 varargs-strict-mode 10.0084+-0.3637 ? 10.2067+-0.4807 ? might be 1.0198x slower varargs 9.9468+-0.2505 ? 10.2112+-0.3802 ? might be 1.0266x slower weird-inlining-const-prop 2.1602+-0.1545 ? 2.1827+-0.1358 ? might be 1.0104x slower <geometric> 8.0902+-0.0311 8.0846+-0.0236 might be 1.0007x faster TipOfTree SimplerPutPath AsmBench: bigfib.cpp 452.9093+-9.4337 449.9729+-8.8749 cray.c 394.8634+-4.6170 390.6325+-2.5465 might be 1.0108x faster dry.c 426.7283+-11.0328 425.5854+-2.0681 FloatMM.c 685.3360+-4.2901 ? 685.8255+-6.0118 ? gcc-loops.cpp 3452.3479+-73.1482 ? 3463.9544+-56.0467 ? n-body.c 830.5774+-6.5978 825.6173+-4.4092 Quicksort.c 406.2400+-5.3113 ? 408.8646+-4.4159 ? stepanov_container.cpp 3508.7983+-47.0341 ? 3627.3859+-355.9051 ? might be 1.0338x slower Towers.c 232.0310+-0.7035 ? 233.9385+-2.2341 ? <geometric> 716.1799+-4.4513 ? 718.0509+-9.0237 ? might be 1.0026x slower TipOfTree SimplerPutPath CompressionBench: huffman 59.8179+-1.0541 59.6162+-1.0873 arithmetic-simple 274.8180+-5.1165 272.0908+-1.3839 might be 1.0100x faster arithmetic-precise 243.0261+-0.9334 ? 244.7514+-3.0038 ? arithmetic-complex-precise 246.9423+-3.3571 ? 249.1310+-7.1646 ? arithmetic-precise-order-0 281.8013+-3.0764 ? 282.6088+-6.4868 ? arithmetic-precise-order-1 300.6028+-1.6442 ? 301.4009+-2.0426 ? arithmetic-precise-order-2 348.7463+-10.7980 345.0329+-2.0548 might be 1.0108x faster arithmetic-simple-order-1 320.3902+-1.8686 ? 320.4757+-3.1819 ? arithmetic-simple-order-2 381.9323+-18.9119 374.1611+-7.1572 might be 1.0208x faster lz-string 308.1424+-4.6198 ? 312.3224+-10.0000 ? might be 1.0136x slower <geometric> 253.5295+-1.3450 253.3025+-1.6928 might be 1.0009x faster TipOfTree SimplerPutPath Geomean of preferred means: <scaled-result> 50.0486+-0.1473 50.0150+-0.2255 might be 1.0007x faster

Filip Pizlo

Comment 2 2015-10-07 12:35:25 PDT

Created attachment 262625 [details] the patch

Geoffrey Garen

Comment 3 2015-10-07 13:20:55 PDT

Comment on attachment 262625 [details] the patch r=me

Filip Pizlo

Comment 4 2015-10-07 13:28:31 PDT

Landed in http://trac.webkit.org/changeset/190682

Attachments
the patch (4.83 KB, patch) 2015-10-07 12:35 PDT, Filip Pizlo	ggaren: review+	Details Formatted Diff Diff
View All Add attachment proposed patch, testcase, etc.