| Summary: | Should not predict OtherObj for ToThis with primitive types under strict mode | ||||||
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| Product: | WebKit | Reporter: | Yusuke Suzuki <ysuzuki> | ||||
| Component: | New Bugs | Assignee: | Yusuke Suzuki <ysuzuki> | ||||
| Status: | RESOLVED FIXED | ||||||
| Severity: | Normal | CC: | benjamin, fpizlo, ggaren, keith_miller, mark.lam, msaboff, saam | ||||
| Priority: | P2 | ||||||
| Version: | WebKit Nightly Build | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Bug Depends on: | |||||||
| Bug Blocks: | 143889 | ||||||
| Attachments: |
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Description
Yusuke Suzuki
2016-01-27 06:32:40 PST
This is found when implementing https://bugs.webkit.org/show_bug.cgi?id=143889, in that case, even under strict mode, ToThis(StringIdent) DFG node predicts its result type as OtherObj. (And frequent BadType OSRExit occurs) Created attachment 270327 [details]
Patch
What is the performance impact? It would be good to see a detailed report. Comment on attachment 270327 [details]
Patch
This looks sensible. We should do detailed perf tests before landing.
Comment on attachment 270327 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=270327&action=review Thanks! I'll take the performance! > Source/JavaScriptCore/dfg/DFGFixupPhase.cpp:1602 > + if (enableInt52() && node->child1()->shouldSpeculateMachineInt()) { > + fixEdge<Int52RepUse>(node->child1()); > + node->convertToIdentity(); > + node->setResult(NodeResultInt52); > + return; > + } > + > + if (node->child1()->shouldSpeculateNumber()) { > + fixEdge<DoubleRepUse>(node->child1()); > + node->convertToIdentity(); > + node->setResult(NodeResultDouble); > + return; > + } I'm not confident on this part. Identity requires that canonicalResultRepresentation(node) == canonicalResultRepresentation(node->child1()) because it just an alias node to the child1. So, what is the best way to handle this here? Looking node->child1()->result() and setting it to node is the way to do that? Or just doing the above is OK? Comment on attachment 270327 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=270327&action=review >> Source/JavaScriptCore/dfg/DFGFixupPhase.cpp:1602 >> + } > > I'm not confident on this part. Identity requires that canonicalResultRepresentation(node) == canonicalResultRepresentation(node->child1()) because it just an alias node to the child1. > So, what is the best way to handle this here? Looking node->child1()->result() and setting it to node is the way to do that? Or just doing the above is OK? Maybe I think we need to transfer NodeResult types since prediction == SpecInt52, result == NodeResultJS case should exist, right? Comment on attachment 270327 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=270327&action=review >> Source/JavaScriptCore/dfg/DFGFixupPhase.cpp:1602 >> + } > > I'm not confident on this part. Identity requires that canonicalResultRepresentation(node) == canonicalResultRepresentation(node->child1()) because it just an alias node to the child1. > So, what is the best way to handle this here? Looking node->child1()->result() and setting it to node is the way to do that? Or just doing the above is OK? This should be OK because the last part of FixupPhase is conversion fix-up. It will see this and insert a DoubleRep node to convert node->child1() into a double. Comment on attachment 270327 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=270327&action=review >>>> Source/JavaScriptCore/dfg/DFGFixupPhase.cpp:1602 >>>> + } >>> >>> I'm not confident on this part. Identity requires that canonicalResultRepresentation(node) == canonicalResultRepresentation(node->child1()) because it just an alias node to the child1. >>> So, what is the best way to handle this here? Looking node->child1()->result() and setting it to node is the way to do that? Or just doing the above is OK? >> >> Maybe I think we need to transfer NodeResult types since prediction == SpecInt52, result == NodeResultJS case should exist, right? > > This should be OK because the last part of FixupPhase is conversion fix-up. It will see this and insert a DoubleRep node to convert node->child1() into a double. In the MachineInt case, it will already insert a Int52Rep node to perform the conversion. Comment on attachment 270327 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=270327&action=review >>>> Source/JavaScriptCore/dfg/DFGFixupPhase.cpp:1602 >>>> + } >>> >>> I'm not confident on this part. Identity requires that canonicalResultRepresentation(node) == canonicalResultRepresentation(node->child1()) because it just an alias node to the child1. >>> So, what is the best way to handle this here? Looking node->child1()->result() and setting it to node is the way to do that? Or just doing the above is OK? >> >> Maybe I think we need to transfer NodeResult types since prediction == SpecInt52, result == NodeResultJS case should exist, right? > > This should be OK because the last part of FixupPhase is conversion fix-up. It will see this and insert a DoubleRep node to convert node->child1() into a double. Oh! Great, I've got it. Thanks so much for your pointing :D Result is the following. Result looks not so bad.
Interesting result is the following.
string-fasta 532.9790+-8.8987 ^ 443.1105+-26.7987 ^ definitely 1.2028x faster
Benchmark report for SunSpider, LongSpider, V8Spider, Octane, Kraken, and JSRegress on yusuke (MacBookPro8,2).
VMs tested:
"Baseline" at /Users/yusuke/dev/WebKit/WebKitBuild/master-for-to-this/Release/jsc
"Mine" at /Users/yusuke/dev/WebKit/WebKitBuild/to-this/Release/jsc
Collected 4 samples per benchmark/VM, with 4 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.
Baseline Mine
SunSpider:
3d-cube 6.8388+-0.2020 ? 6.8658+-0.2305 ?
3d-morph 6.3539+-0.1499 ? 6.4283+-0.1092 ? might be 1.0117x slower
3d-raytrace 7.8746+-0.3095 7.7234+-0.3293 might be 1.0196x faster
access-binary-trees 2.9196+-0.8561 ? 3.0106+-1.0100 ? might be 1.0312x slower
access-fannkuch 7.4094+-0.4459 7.2355+-0.3741 might be 1.0240x faster
access-nbody 3.4037+-0.0189 ? 3.4475+-0.1829 ? might be 1.0129x slower
access-nsieve 3.8041+-0.8647 3.5676+-0.1024 might be 1.0663x faster
bitops-3bit-bits-in-byte 1.6743+-0.2596 ? 1.6902+-0.2946 ?
bitops-bits-in-byte 3.8563+-0.1178 ? 4.3156+-1.3097 ? might be 1.1191x slower
bitops-bitwise-and 2.5339+-0.1882 ? 2.8043+-0.4439 ? might be 1.1067x slower
bitops-nsieve-bits 4.0405+-1.1136 ? 4.0866+-1.2173 ? might be 1.0114x slower
controlflow-recursive 2.9171+-0.0481 2.8798+-0.0449 might be 1.0129x faster
crypto-aes 5.6260+-1.1224 5.5887+-1.2017
crypto-md5 3.3235+-0.0312 3.3100+-0.0490
crypto-sha1 3.1762+-0.2238 3.1094+-0.1506 might be 1.0215x faster
date-format-tofte 10.3273+-0.2686 ? 11.7130+-1.9988 ? might be 1.1342x slower
date-format-xparb 6.4587+-1.3093 6.1612+-0.1655 might be 1.0483x faster
math-cordic 3.7736+-0.3412 3.6602+-0.0483 might be 1.0310x faster
math-partial-sums 6.2522+-0.0647 ? 6.2560+-0.1810 ?
math-spectral-norm 2.8151+-0.0705 ? 2.8848+-0.2949 ? might be 1.0248x slower
regexp-dna 7.6108+-0.0829 ? 7.9500+-1.3633 ? might be 1.0446x slower
string-base64 5.5179+-0.1008 ? 6.6177+-2.9868 ? might be 1.1993x slower
string-fasta 7.8203+-0.1965 ^ 7.2189+-0.2588 ^ definitely 1.0833x faster
string-tagcloud 11.3948+-2.2276 10.7035+-1.4312 might be 1.0646x faster
string-unpack-code 21.8558+-0.6278 ? 21.9362+-0.2834 ?
string-validate-input 5.5400+-0.2279 5.3936+-0.1118 might be 1.0271x faster
<arithmetic> 5.9661+-0.1647 ? 6.0215+-0.1935 ? might be 1.0093x slower
Baseline Mine
LongSpider:
3d-cube 988.1898+-26.0637 976.0106+-35.9054 might be 1.0125x faster
3d-morph 706.9565+-10.5345 ? 709.4516+-10.2146 ?
3d-raytrace 798.2307+-2.5329 ? 801.4364+-11.4800 ?
access-binary-trees 1130.5771+-27.0389 ? 1141.3080+-13.4669 ?
access-fannkuch 364.5560+-53.9827 350.1062+-57.4193 might be 1.0413x faster
access-nbody 778.1685+-11.2663 753.1172+-55.4978 might be 1.0333x faster
access-nsieve 513.6930+-5.6347 ? 530.6740+-30.5231 ? might be 1.0331x slower
bitops-3bit-bits-in-byte 39.7734+-0.3323 39.6630+-0.4639
bitops-bits-in-byte 129.2963+-10.3004 ? 131.0593+-8.5711 ? might be 1.0136x slower
bitops-nsieve-bits 437.4865+-6.7785 ? 440.1103+-5.7066 ?
controlflow-recursive 541.0652+-5.1718 ? 550.2098+-25.3788 ? might be 1.0169x slower
crypto-aes 870.6147+-17.3557 ? 883.8890+-26.1841 ? might be 1.0152x slower
crypto-md5 787.7313+-17.2980 774.8337+-7.0612 might be 1.0166x faster
crypto-sha1 922.9603+-21.9982 918.1735+-35.4824
date-format-tofte 891.6646+-12.8235 ! 927.7588+-19.6508 ! definitely 1.0405x slower
date-format-xparb 870.6762+-72.0739 ? 879.9855+-44.6304 ? might be 1.0107x slower
hash-map 201.1562+-5.0322 200.7615+-5.3319
math-cordic 604.0203+-53.6081 584.9930+-8.1026 might be 1.0325x faster
math-partial-sums 599.5690+-1.5359 ? 601.3077+-10.1026 ?
math-spectral-norm 909.3830+-12.7690 ? 912.0120+-15.4944 ?
string-base64 513.4621+-28.1601 508.7567+-5.9941
string-fasta 532.9790+-8.8987 ^ 443.1105+-26.7987 ^ definitely 1.2028x faster
string-tagcloud 216.3085+-4.5502 ^ 208.9126+-2.5991 ^ definitely 1.0354x faster
<geometric> 512.8830+-6.9203 508.0797+-4.8989 might be 1.0095x faster
Baseline Mine
V8Spider:
crypto 49.5096+-0.1318 ? 50.5564+-3.3336 ? might be 1.0211x slower
deltablue 63.7818+-3.2704 ? 64.5628+-3.7463 ? might be 1.0122x slower
earley-boyer 50.3643+-0.3734 50.3442+-1.3069
raytrace 33.7848+-2.6372 32.9717+-0.2099 might be 1.0247x faster
regexp 81.9688+-5.8931 80.5159+-0.7365 might be 1.0180x faster
richards 51.7880+-0.8524 ? 56.3846+-4.6152 ? might be 1.0888x slower
splay 45.9706+-2.9395 45.9433+-2.9223
<geometric> 52.1275+-0.4657 ? 52.6932+-1.5753 ? might be 1.0109x slower
Baseline Mine
Octane:
encrypt 0.22116+-0.00826 0.22095+-0.00890
decrypt 3.85020+-0.07744 ? 3.87119+-0.11700 ?
deltablue x2 0.19358+-0.01481 0.19130+-0.01829 might be 1.0119x faster
earley 0.41245+-0.01678 ? 0.41448+-0.00811 ?
boyer 6.28153+-0.12866 6.17070+-0.08765 might be 1.0180x faster
navier-stokes x2 5.31805+-0.02438 ? 5.33414+-0.09184 ?
raytrace x2 1.30101+-0.01972 1.29602+-0.04470
richards x2 0.10712+-0.00121 ? 0.10790+-0.00351 ?
splay x2 0.45931+-0.00823 ? 0.46245+-0.00770 ?
regexp x2 32.62361+-0.70076 32.05047+-0.66892 might be 1.0179x faster
pdfjs x2 48.31987+-0.79489 ? 48.65049+-1.20758 ?
mandreel x2 55.14015+-1.16230 54.38888+-0.28091 might be 1.0138x faster
gbemu x2 34.21716+-0.51567 34.21298+-0.57379
closure 0.73493+-0.01902 ? 0.73908+-0.00968 ?
jquery 9.57622+-0.19237 9.52913+-0.06055
box2d x2 12.27128+-0.20301 12.15191+-0.12725
zlib x2 452.26192+-6.26119 452.20036+-1.88530
typescript x2 888.42780+-9.23000 884.01660+-9.01757
<geometric> 6.89714+-0.06617 6.87752+-0.06423 might be 1.0029x faster
Baseline Mine
Kraken:
ai-astar 110.429+-2.033 ? 114.811+-9.544 ? might be 1.0397x slower
audio-beat-detection 64.745+-0.686 ? 65.751+-6.172 ? might be 1.0155x slower
audio-dft 110.252+-3.877 ? 110.887+-6.269 ?
audio-fft 50.033+-4.642 ? 50.099+-4.139 ?
audio-oscillator 68.635+-4.911 ? 68.693+-4.654 ?
imaging-darkroom 74.385+-5.096 74.314+-5.173
imaging-desaturate 64.632+-0.429 ? 64.785+-0.970 ?
imaging-gaussian-blur 102.515+-5.065 ? 103.385+-7.620 ?
json-parse-financial 49.084+-0.479 ? 50.866+-4.657 ? might be 1.0363x slower
json-stringify-tinderbox 28.495+-0.441 28.384+-0.315
stanford-crypto-aes 49.723+-4.850 48.464+-1.224 might be 1.0260x faster
stanford-crypto-ccm 48.608+-4.243 48.605+-4.624
stanford-crypto-pbkdf2 123.113+-6.265 ? 125.059+-6.179 ? might be 1.0158x slower
stanford-crypto-sha256-iterative 47.237+-0.492 ? 49.022+-4.814 ? might be 1.0378x slower
<arithmetic> 70.849+-0.936 ? 71.652+-1.229 ? might be 1.0113x slower
Baseline Mine
JSRegress:
abc-forward-loop-equal 46.1651+-3.3739 45.0609+-0.6837 might be 1.0245x faster
abc-postfix-backward-loop 59.8900+-4.9873 58.3672+-0.5227 might be 1.0261x faster
abc-simple-backward-loop 45.6028+-3.8654 ? 45.7128+-3.8959 ?
abc-simple-forward-loop 45.8312+-3.7861 45.8207+-4.2541
abc-skippy-loop 32.3862+-3.6200 30.5857+-0.1364 might be 1.0589x faster
abs-boolean 3.3278+-0.1469 ? 3.3593+-0.1186 ?
adapt-to-double-divide 15.7523+-1.9522 15.2807+-0.3748 might be 1.0309x faster
aliased-arguments-getbyval 1.3865+-0.0287 1.3770+-0.0137
allocate-big-object 2.9018+-0.1176 ? 3.0454+-0.8221 ? might be 1.0495x slower
arguments-named-and-reflective 9.5267+-0.1593 ? 10.9730+-3.4939 ? might be 1.1518x slower
arguments-out-of-bounds 10.7278+-0.2658 ? 12.3985+-4.3112 ? might be 1.1557x slower
arguments-strict-mode 8.8571+-0.1804 ? 9.3559+-1.1596 ? might be 1.0563x slower
arguments 8.4475+-0.3709 8.2367+-0.1264 might be 1.0256x faster
arity-mismatch-inlining 1.2152+-0.3500 1.1855+-0.2429 might be 1.0250x faster
array-access-polymorphic-structure 9.1157+-0.1570 ? 10.3255+-4.3078 ? might be 1.1327x slower
array-nonarray-polymorhpic-access 29.1953+-0.9799 ? 30.3574+-2.8276 ? might be 1.0398x slower
array-prototype-every 88.1013+-0.5634 ^ 85.2040+-0.9376 ^ definitely 1.0340x faster
array-prototype-forEach 87.4919+-2.9242 ? 87.9346+-2.8477 ?
array-prototype-map 98.9097+-3.6971 91.8150+-5.0288 might be 1.0773x faster
array-prototype-reduce 87.6442+-4.9214 ? 89.2727+-6.9987 ? might be 1.0186x slower
array-prototype-reduceRight 103.8035+-4.8637 ? 105.7334+-3.3303 ? might be 1.0186x slower
array-prototype-some 87.7402+-0.6509 ? 90.7748+-11.7664 ? might be 1.0346x slower
array-splice-contiguous 28.1000+-0.6010 ? 28.2710+-0.2916 ?
array-with-double-add 5.1816+-1.4970 5.0557+-1.4886 might be 1.0249x faster
array-with-double-increment 4.4128+-1.8163 4.3653+-1.3570 might be 1.0109x faster
array-with-double-mul-add 6.3787+-1.4916 5.8991+-1.4557 might be 1.0813x faster
array-with-double-sum 4.2357+-1.8537 4.1400+-1.5085 might be 1.0231x faster
array-with-int32-add-sub 8.4885+-0.6723 7.9946+-0.1956 might be 1.0618x faster
array-with-int32-or-double-sum 3.7485+-0.2477 3.7109+-0.1913 might be 1.0101x faster
ArrayBuffer-DataView-alloc-large-long-lived
38.6818+-1.0953 ? 44.7883+-9.3367 ? might be 1.1579x slower
ArrayBuffer-DataView-alloc-long-lived 16.2362+-0.4893 ? 17.4698+-2.8687 ? might be 1.0760x slower
ArrayBuffer-Int32Array-byteOffset 4.4567+-0.1506 ? 4.6092+-0.2619 ? might be 1.0342x slower
ArrayBuffer-Int8Array-alloc-large-long-lived
37.4602+-1.4383 ? 38.2050+-3.6939 ? might be 1.0199x slower
ArrayBuffer-Int8Array-alloc-long-lived-buffer
24.5803+-1.0530 ? 26.4618+-4.5511 ? might be 1.0765x slower
ArrayBuffer-Int8Array-alloc-long-lived 14.3605+-0.4475 ? 14.7531+-0.7330 ? might be 1.0273x slower
ArrayBuffer-Int8Array-alloc 12.0576+-0.2794 ? 13.8566+-4.9631 ? might be 1.1492x slower
arrowfunction-call 12.1545+-0.2426 ? 13.7935+-3.0901 ? might be 1.1349x slower
asmjs_bool_bug 8.8403+-0.2244 ? 8.9186+-0.3785 ?
assign-custom-setter-polymorphic 3.2007+-0.0335 ? 3.2182+-0.1256 ?
assign-custom-setter 4.7502+-0.0902 ? 4.7749+-0.1757 ?
basic-set 11.0048+-2.3512 9.3782+-0.3818 might be 1.1734x faster
big-int-mul 4.0527+-0.1557 ? 4.0640+-0.1701 ?
boolean-test 4.5742+-1.4919 3.9860+-0.0789 might be 1.1476x faster
branch-fold 4.6299+-0.6500 4.3855+-0.1280 might be 1.0557x faster
branch-on-string-as-boolean 16.8831+-0.1922 ? 17.0259+-0.1393 ?
by-val-generic 5.5139+-0.1637 5.3060+-0.2190 might be 1.0392x faster
call-spread-apply 32.5884+-3.0871 32.0340+-4.6919 might be 1.0173x faster
call-spread-call 24.4427+-0.1446 ? 26.4528+-3.3693 ? might be 1.0822x slower
captured-assignments 0.7960+-0.2982 ? 0.8557+-0.8314 ? might be 1.0750x slower
cast-int-to-double 5.8567+-0.0751 ? 6.5308+-1.7826 ? might be 1.1151x slower
cell-argument 4.9905+-1.5821 4.5148+-0.0903 might be 1.1054x faster
cfg-simplify 3.4468+-0.3226 3.3914+-0.1137 might be 1.0163x faster
chain-getter-access 12.4240+-0.1133 ? 14.3965+-3.7543 ? might be 1.1588x slower
cmpeq-obj-to-obj-other 10.7814+-0.0854 ? 13.8245+-4.2099 ? might be 1.2823x slower
constant-test 5.5397+-1.0272 5.3552+-0.6600 might be 1.0345x faster
create-lots-of-functions 10.2815+-1.7671 ? 10.8793+-2.1718 ? might be 1.0581x slower
cse-new-array-buffer 3.3260+-0.9877 2.8995+-0.1901 might be 1.1471x faster
cse-new-array 3.1662+-0.2950 3.0685+-0.1875 might be 1.0318x faster
custom-setter-getter-as-put-get-by-id 0.8149+-0.3110 ? 0.8185+-0.3405 ?
DataView-custom-properties 49.6578+-3.0656 45.8035+-3.0211 might be 1.0841x faster
delay-tear-off-arguments-strictmode 15.8316+-0.5717 ? 16.7841+-3.4407 ? might be 1.0602x slower
deltablue-varargs 221.5305+-5.2778 ? 226.4680+-5.5356 ? might be 1.0223x slower
destructuring-arguments 208.5494+-21.6456 207.3817+-14.6011
destructuring-parameters-overridden-by-function
0.7919+-0.3012 0.6904+-0.2605 might be 1.1470x faster
destructuring-swap 5.4163+-0.1037 5.3585+-0.0158 might be 1.0108x faster
direct-arguments-getbyval 1.4514+-0.1514 ? 1.6965+-0.6056 ? might be 1.1689x slower
div-boolean-double 5.1420+-0.1810 ? 5.1479+-0.3085 ?
div-boolean 7.8936+-0.1296 7.8007+-0.0404 might be 1.0119x faster
double-get-by-val-out-of-bounds 5.3330+-0.2900 ? 5.7855+-1.3548 ? might be 1.0849x slower
double-pollution-getbyval 8.9156+-0.1545 ? 8.9324+-0.2776 ?
double-pollution-putbyoffset 4.3958+-0.0932 ? 4.4062+-0.0195 ?
double-real-use 31.1784+-0.3230 ? 32.1596+-3.7970 ? might be 1.0315x slower
double-to-int32-typed-array-no-inline 2.6868+-0.0246 ? 2.8895+-0.6857 ? might be 1.0755x slower
double-to-int32-typed-array 2.6298+-0.3018 2.5336+-0.0248 might be 1.0380x faster
double-to-uint32-typed-array-no-inline 2.7438+-0.0227 ? 2.8412+-0.2624 ? might be 1.0355x slower
double-to-uint32-typed-array 2.9548+-1.3933 2.6699+-0.2933 might be 1.1067x faster
elidable-new-object-dag 46.3948+-6.8081 46.1916+-6.2773
elidable-new-object-roflcopter 50.2988+-5.7401 50.1989+-2.9945
elidable-new-object-then-call 39.4120+-4.1388 ? 40.6298+-3.5316 ? might be 1.0309x slower
elidable-new-object-tree 51.6711+-1.1488 ? 52.4647+-0.8698 ? might be 1.0154x slower
empty-string-plus-int 6.1923+-0.1050 ? 6.2415+-0.1601 ?
emscripten-cube2hash 41.5179+-0.9265 40.9946+-0.4253 might be 1.0128x faster
exit-length-on-plain-object 21.9051+-3.8422 21.3364+-4.6929 might be 1.0267x faster
external-arguments-getbyval 1.5055+-0.1898 ? 1.5887+-0.1408 ? might be 1.0553x slower
external-arguments-putbyval 2.8115+-0.1081 ? 2.8284+-0.0684 ?
fixed-typed-array-storage-var-index 1.6165+-0.1993 1.5394+-0.0154 might be 1.0501x faster
fixed-typed-array-storage 1.2570+-0.2799 ? 1.3673+-0.5234 ? might be 1.0878x slower
Float32Array-matrix-mult 5.3273+-0.1776 5.2071+-0.0256 might be 1.0231x faster
Float32Array-to-Float64Array-set 59.1118+-4.7975 ? 62.4603+-0.3046 ? might be 1.0566x slower
Float64Array-alloc-long-lived 88.0073+-7.4488 86.5102+-3.9882 might be 1.0173x faster
Float64Array-to-Int16Array-set 71.2655+-1.7263 70.8859+-0.5933
fold-double-to-int 16.6020+-0.3375 ? 18.5142+-5.2461 ? might be 1.1152x slower
fold-get-by-id-to-multi-get-by-offset-rare-int
10.4069+-0.6961 ? 11.0452+-1.6412 ? might be 1.0613x slower
fold-get-by-id-to-multi-get-by-offset 8.8661+-0.3990 ? 9.0004+-0.2102 ? might be 1.0151x slower
fold-multi-get-by-offset-to-get-by-offset
6.8760+-0.0407 ? 8.6407+-3.1645 ? might be 1.2566x slower
fold-multi-get-by-offset-to-poly-get-by-offset
9.1189+-3.2368 8.1530+-2.8804 might be 1.1185x faster
fold-multi-put-by-offset-to-poly-put-by-offset
10.1741+-2.2840 ? 10.7327+-3.4347 ? might be 1.0549x slower
fold-multi-put-by-offset-to-put-by-offset
8.3908+-2.2128 ? 8.4092+-2.2050 ?
fold-multi-put-by-offset-to-replace-or-transition-put-by-offset
12.8370+-0.5198 ? 13.5784+-2.4184 ? might be 1.0578x slower
fold-put-by-id-to-multi-put-by-offset 10.2604+-0.3381 ? 10.8140+-1.7448 ? might be 1.0539x slower
fold-put-by-val-with-string-to-multi-put-by-offset
11.0826+-0.9469 10.7903+-0.3514 might be 1.0271x faster
fold-put-by-val-with-symbol-to-multi-put-by-offset
10.7443+-0.5822 10.6407+-0.2300
fold-put-structure 6.6414+-0.7204 6.5153+-0.4410 might be 1.0194x faster
for-of-iterate-array-entries 12.3881+-0.0860 ? 12.8290+-1.1048 ? might be 1.0356x slower
for-of-iterate-array-keys 4.4352+-0.4127 4.3264+-0.1095 might be 1.0252x faster
for-of-iterate-array-values 4.2401+-0.1189 ? 4.8185+-1.5160 ? might be 1.1364x slower
fround 13.1311+-0.2652 ? 14.5497+-4.5034 ? might be 1.1080x slower
ftl-library-inlining-dataview 73.9306+-4.7832 ? 86.6100+-34.8283 ? might be 1.1715x slower
ftl-library-inlining 28.3233+-0.3026 ? 28.3365+-0.2100 ?
ftl-polymorphic-bitand 156.3112+-5.1481 151.9550+-2.1918 might be 1.0287x faster
ftl-polymorphic-bitor 153.7802+-0.2427 ? 157.0833+-16.0217 ? might be 1.0215x slower
ftl-polymorphic-bitxor 153.6791+-1.1191 ? 154.5665+-10.5545 ?
ftl-polymorphic-div 483.5452+-5.0148 482.3288+-7.2633
ftl-polymorphic-lshift 162.9845+-4.4508 159.9066+-3.8164 might be 1.0192x faster
ftl-polymorphic-mul 243.2489+-4.8224 ? 243.2552+-7.2128 ?
ftl-polymorphic-rshift 162.7777+-3.1946 159.7105+-2.4094 might be 1.0192x faster
ftl-polymorphic-StringFromCharCode 231.1320+-4.8460 230.6172+-2.2563
ftl-polymorphic-sub 185.3167+-1.3070 184.3026+-0.7561
ftl-polymorphic-urshift 179.5978+-4.0237 ? 181.4268+-8.0723 ? might be 1.0102x slower
function-call 13.6907+-3.7189 ? 15.0410+-4.6529 ? might be 1.0986x slower
function-dot-apply 2.7674+-0.1592 2.7255+-0.0832 might be 1.0154x faster
function-test 3.9076+-0.1847 ? 3.9078+-0.1078 ?
function-with-eval 125.0468+-3.8522 120.8160+-9.8030 might be 1.0350x faster
gcse-poly-get-less-obvious 19.8920+-0.3712 ? 20.2592+-1.0424 ? might be 1.0185x slower
gcse-poly-get 20.5544+-0.3366 ? 22.3874+-5.3696 ? might be 1.0892x slower
gcse 4.9607+-1.3318 ? 4.9731+-1.2726 ?
generator-create 1.0319+-0.2168 ? 1.1572+-0.3963 ? might be 1.1214x slower
generator-fib 132.3182+-3.4792 128.0569+-4.8986 might be 1.0333x faster
generator-function-create 5.3197+-1.8464 ? 5.5192+-0.9349 ? might be 1.0375x slower
generator-sunspider-access-nsieve 7.0984+-0.1001 7.0760+-0.1834
generator-with-several-types 432.4028+-16.7524 429.0331+-11.1702
get-by-id-bimorphic-check-structure-elimination-simple
3.0207+-0.0907 ? 3.4750+-1.5471 ? might be 1.1504x slower
get-by-id-bimorphic-check-structure-elimination
5.9897+-0.0274 ? 6.5924+-1.6180 ? might be 1.1006x slower
get-by-id-chain-from-try-block 2.9133+-0.2904 ? 3.1160+-0.7717 ? might be 1.0696x slower
get-by-id-check-structure-elimination 5.3560+-1.3635 4.9410+-0.2073 might be 1.0840x faster
get-by-id-proto-or-self 15.0875+-4.7729 13.5242+-0.5476 might be 1.1156x faster
get-by-id-quadmorphic-check-structure-elimination-simple
3.3096+-0.1241 ? 3.4034+-0.4244 ? might be 1.0284x slower
get-by-id-self-or-proto 14.8101+-2.2734 14.3361+-0.7091 might be 1.0331x faster
get-by-val-out-of-bounds 5.4796+-1.3247 5.1347+-0.0892 might be 1.0672x faster
get-by-val-with-string-bimorphic-check-structure-elimination-simple
3.5957+-0.1497 ? 4.0560+-1.3297 ? might be 1.1280x slower
get-by-val-with-string-bimorphic-check-structure-elimination
7.7115+-0.1585 ? 8.0984+-0.3159 ? might be 1.0502x slower
get-by-val-with-string-chain-from-try-block
2.8752+-0.0840 ? 2.8772+-0.0861 ?
get-by-val-with-string-check-structure-elimination
7.6452+-1.4534 6.7739+-0.0765 might be 1.1286x faster
get-by-val-with-string-proto-or-self 14.4621+-0.4466 ? 15.0972+-2.7848 ? might be 1.0439x slower
get-by-val-with-string-quadmorphic-check-structure-elimination-simple
4.1245+-0.2645 3.9735+-0.3185 might be 1.0380x faster
get-by-val-with-string-self-or-proto 16.3563+-1.6604 ? 16.7083+-3.6831 ? might be 1.0215x slower
get-by-val-with-symbol-bimorphic-check-structure-elimination-simple
3.8293+-0.0381 3.8093+-0.0215
get-by-val-with-symbol-bimorphic-check-structure-elimination
14.4648+-0.6509 ? 15.1508+-2.2941 ? might be 1.0474x slower
get-by-val-with-symbol-chain-from-try-block
3.0056+-0.3838 2.8813+-0.1030 might be 1.0432x faster
get-by-val-with-symbol-check-structure-elimination
14.1335+-1.1465 13.6451+-0.2931 might be 1.0358x faster
get-by-val-with-symbol-proto-or-self 14.6721+-1.0741 ? 15.0543+-1.2999 ? might be 1.0260x slower
get-by-val-with-symbol-quadmorphic-check-structure-elimination-simple
4.7496+-0.0624 ? 4.7584+-0.1593 ?
get-by-val-with-symbol-self-or-proto 15.4861+-1.6919 ? 16.1745+-3.5770 ? might be 1.0444x slower
get_callee_monomorphic 2.9810+-0.1291 ? 3.0275+-0.0908 ? might be 1.0156x slower
get_callee_polymorphic 4.0681+-0.1447 ? 4.3637+-1.0749 ? might be 1.0727x slower
getter-no-activation 4.4637+-0.0453 ? 4.5422+-0.1833 ? might be 1.0176x slower
getter-prototype 8.1490+-0.5727 ? 8.8707+-2.9118 ? might be 1.0886x slower
getter-richards-try-catch 1164.6748+-21.7167 ? 1212.6561+-57.3471 ? might be 1.0412x slower
getter-richards 88.8886+-6.9736 86.2110+-3.1479 might be 1.0311x faster
getter 5.1589+-0.2123 ? 5.4144+-0.4250 ? might be 1.0495x slower
global-object-access-with-mutating-structure
5.7413+-0.1285 5.7195+-0.3035
global-var-const-infer-fire-from-opt 1.1769+-0.6304 0.9471+-0.0671 might be 1.2426x faster
global-var-const-infer 0.9419+-0.3830 ? 1.0321+-0.3634 ? might be 1.0958x slower
hard-overflow-check-equal 36.1635+-0.1364 ? 36.4109+-0.2835 ?
hard-overflow-check 36.4514+-1.2256 ? 37.4879+-4.6632 ? might be 1.0284x slower
HashMap-put-get-iterate-keys 28.1237+-0.1211 ? 28.1982+-0.5132 ?
HashMap-put-get-iterate 29.6027+-4.5335 28.9892+-2.8022 might be 1.0212x faster
HashMap-string-put-get-iterate 31.2901+-0.6733 31.1957+-0.3004
hoist-make-rope 5.4417+-0.3225 5.3862+-0.2088 might be 1.0103x faster
hoist-poly-check-structure-effectful-loop
4.9212+-1.0276 4.8033+-0.8354 might be 1.0245x faster
hoist-poly-check-structure 3.1372+-0.1193 3.0811+-0.0678 might be 1.0182x faster
imul-double-only 4.1161+-0.4524 ? 4.3577+-1.2471 ? might be 1.0587x slower
imul-int-only 6.0278+-0.1157 5.9752+-0.0554
imul-mixed 4.4622+-0.4638 ? 4.5051+-0.5053 ?
in-four-cases 19.4003+-0.3947 ? 19.6183+-0.9089 ? might be 1.0112x slower
in-one-case-false 11.0588+-0.1841 ? 12.3152+-3.6290 ? might be 1.1136x slower
in-one-case-true 11.6660+-1.7876 11.0403+-0.3978 might be 1.0567x faster
in-two-cases 11.2403+-0.5844 ? 11.3948+-1.0468 ? might be 1.0137x slower
indexed-properties-in-objects 3.3480+-0.2576 ? 3.9105+-1.7566 ? might be 1.1680x slower
infer-closure-const-then-mov-no-inline 3.7755+-1.0363 ? 3.8710+-1.3839 ? might be 1.0253x slower
infer-closure-const-then-mov 10.9255+-1.4092 10.3409+-0.1813 might be 1.0565x faster
infer-closure-const-then-put-to-scope-no-inline
14.4137+-4.0044 ? 14.4311+-3.5778 ?
infer-closure-const-then-put-to-scope 24.1342+-0.3624 ? 24.1663+-0.3694 ?
infer-closure-const-then-reenter-no-inline
66.1669+-1.4240 ? 66.9810+-4.6599 ? might be 1.0123x slower
infer-closure-const-then-reenter 24.4434+-0.3047 ? 25.5297+-4.1058 ? might be 1.0444x slower
infer-constant-global-property 4.4652+-1.4413 3.9130+-0.3433 might be 1.1411x faster
infer-constant-property 3.2239+-0.3660 3.2112+-0.2941
infer-one-time-closure-ten-vars 8.2723+-0.3534 8.2168+-0.5569
infer-one-time-closure-two-vars 8.0271+-1.1544 ? 9.2097+-4.5738 ? might be 1.1473x slower
infer-one-time-closure 7.5496+-0.1920 ? 7.6200+-0.1392 ?
infer-one-time-deep-closure 15.7490+-5.9301 13.8420+-0.3179 might be 1.1378x faster
inline-arguments-access 4.7004+-0.0755 4.6858+-0.0827
inline-arguments-aliased-access 4.7245+-0.0438 4.6763+-0.0682 might be 1.0103x faster
inline-arguments-local-escape 4.7028+-0.0618 ? 4.9263+-0.5514 ? might be 1.0475x slower
inline-get-scoped-var 4.0543+-0.5190 ? 4.0809+-0.1973 ?
inlined-put-by-id-transition 12.8069+-0.4650 ? 13.0810+-1.0695 ? might be 1.0214x slower
inlined-put-by-val-with-string-transition
58.1575+-3.1184 ? 58.2598+-1.8814 ?
inlined-put-by-val-with-symbol-transition
56.7093+-4.0280 ? 59.0997+-5.1286 ? might be 1.0422x slower
instanceof-bound 23.8514+-2.6936 ? 25.6821+-5.4889 ? might be 1.0768x slower
int-or-other-abs-then-get-by-val 5.5740+-0.2454 ? 6.0342+-1.3495 ? might be 1.0826x slower
int-or-other-abs-zero-then-get-by-val 19.8278+-0.4306 ? 21.1009+-4.1856 ? might be 1.0642x slower
int-or-other-add-then-get-by-val 5.8424+-0.4573 5.7867+-0.1118
int-or-other-add 5.6306+-0.1170 ? 5.7445+-0.2628 ? might be 1.0202x slower
int-or-other-div-then-get-by-val 4.4137+-0.0249 ? 4.4532+-0.2007 ?
int-or-other-max-then-get-by-val 4.9277+-0.9171 4.6212+-0.1300 might be 1.0663x faster
int-or-other-min-then-get-by-val 4.8937+-0.7244 4.6845+-0.0755 might be 1.0447x faster
int-or-other-mod-then-get-by-val 4.2890+-0.1520 ? 4.3394+-0.2884 ? might be 1.0117x slower
int-or-other-mul-then-get-by-val 4.6657+-1.3131 4.2897+-0.1089 might be 1.0876x faster
int-or-other-neg-then-get-by-val 4.9713+-0.2448 4.8538+-0.0456 might be 1.0242x faster
int-or-other-neg-zero-then-get-by-val 22.9631+-5.7714 20.9240+-3.9854 might be 1.0975x faster
int-or-other-sub-then-get-by-val 6.0132+-0.0352 5.9899+-0.0957
int-or-other-sub 4.5778+-0.1486 ? 4.6680+-0.3254 ? might be 1.0197x slower
int-overflow-local 5.1345+-0.1359 5.1320+-0.0819
Int16Array-alloc-long-lived 61.6947+-2.7677 59.3102+-2.9719 might be 1.0402x faster
Int16Array-bubble-sort-with-byteLength 23.1073+-1.7147 ? 24.0831+-1.0819 ? might be 1.0422x slower
Int16Array-bubble-sort 20.5265+-1.0238 20.1733+-0.1905 might be 1.0175x faster
Int16Array-load-int-mul 2.0530+-0.3627 1.9629+-0.0677 might be 1.0459x faster
Int16Array-to-Int32Array-set 58.4327+-0.2905 ^ 57.4477+-0.3447 ^ definitely 1.0171x faster
Int32Array-alloc-large 29.4740+-2.4366 26.2855+-0.8653 might be 1.1213x faster
Int32Array-alloc-long-lived 67.9485+-8.0484 66.9293+-5.4537 might be 1.0152x faster
Int32Array-alloc 3.9185+-0.0845 ? 4.6503+-2.4165 ? might be 1.1867x slower
Int32Array-Int8Array-view-alloc 7.4820+-0.2059 ? 7.5504+-0.3376 ?
int52-spill 6.2779+-1.1266 5.8351+-0.1684 might be 1.0759x faster
Int8Array-alloc-long-lived 54.3631+-3.0843 52.9403+-3.0358 might be 1.0269x faster
Int8Array-load-with-byteLength 3.9717+-0.0302 ? 4.0898+-0.2016 ? might be 1.0297x slower
Int8Array-load 4.1197+-0.1703 4.0713+-0.1932 might be 1.0119x faster
integer-divide 13.2458+-2.7231 ? 15.2903+-3.9109 ? might be 1.1544x slower
integer-modulo 2.4343+-0.2108 ? 2.5415+-0.4319 ? might be 1.0441x slower
is-boolean-fold-tricky 4.5695+-0.1805 4.5582+-0.2218
is-boolean-fold 3.5250+-0.0468 ? 4.0130+-1.2173 ? might be 1.1384x slower
is-function-fold-tricky-internal-function
12.2498+-0.3125 ? 13.2418+-3.0284 ? might be 1.0810x slower
is-function-fold-tricky 4.5772+-0.0317 ? 5.0398+-1.4789 ? might be 1.1011x slower
is-function-fold 3.6056+-0.0699 ? 4.1495+-1.3818 ? might be 1.1508x slower
is-number-fold-tricky 4.9999+-1.3319 ? 5.0075+-1.5379 ?
is-number-fold 3.5710+-0.1262 ? 3.7209+-0.2481 ? might be 1.0420x slower
is-object-or-null-fold-functions 3.8123+-0.4375 3.6973+-0.1235 might be 1.0311x faster
is-object-or-null-fold-less-tricky 4.6497+-0.1350 ? 5.8677+-2.2489 ? might be 1.2620x slower
is-object-or-null-fold-tricky 6.5237+-1.4167 6.1857+-0.2695 might be 1.0546x faster
is-object-or-null-fold 4.1453+-1.3455 3.6573+-0.1524 might be 1.1334x faster
is-object-or-null-trickier-function 5.6162+-1.8196 5.1793+-1.4898 might be 1.0844x faster
is-object-or-null-trickier-internal-function
17.7695+-0.4792 ? 18.5690+-1.7372 ? might be 1.0450x slower
is-object-or-null-tricky-function 4.6691+-0.1447 ? 5.0555+-1.3633 ? might be 1.0828x slower
is-object-or-null-tricky-internal-function
9.6163+-1.6158 9.0823+-0.2886 might be 1.0588x faster
is-string-fold-tricky 5.3931+-1.7055 4.9414+-1.5379 might be 1.0914x faster
is-string-fold 3.6551+-0.3129 3.5745+-0.1527 might be 1.0225x faster
is-undefined-fold-tricky 3.8282+-0.1950 ? 4.0364+-0.3160 ? might be 1.0544x slower
is-undefined-fold 3.6118+-0.0993 ? 3.7197+-0.3045 ? might be 1.0299x slower
JSONP-negative-0 0.3517+-0.0083 ? 0.4917+-0.1425 ? might be 1.3979x slower
large-int-captured 3.7211+-0.2989 ? 4.0057+-0.2720 ? might be 1.0765x slower
large-int-neg 15.4839+-0.3302 ? 15.5735+-0.1806 ?
large-int 16.1016+-4.6627 16.0425+-4.7941
load-varargs-elimination 22.8818+-0.7240 ? 24.2017+-3.8531 ? might be 1.0577x slower
logical-not-weird-types 3.8527+-1.3337 3.7756+-1.2873 might be 1.0204x faster
logical-not 4.6882+-0.0387 ? 4.7233+-0.1486 ?
lots-of-fields 13.9108+-2.8854 ? 15.5230+-4.1346 ? might be 1.1159x slower
make-indexed-storage 3.6508+-0.4479 ? 3.8781+-0.6549 ? might be 1.0622x slower
make-rope-cse 5.9417+-1.4824 5.8217+-1.4968 might be 1.0206x faster
map-for-each 6.3323+-0.2299 ? 6.3521+-0.1861 ?
map-for-of 20.7924+-1.3359 ? 23.1824+-4.9935 ? might be 1.1149x slower
marsaglia-larger-ints 43.6826+-0.2416 ? 43.9312+-0.5426 ?
marsaglia-osr-entry 22.5484+-3.3521 22.2520+-3.7891 might be 1.0133x faster
math-random 16.3193+-0.3305 ? 19.4192+-5.7369 ? might be 1.1899x slower
math-with-out-of-bounds-array-values 33.3232+-0.4660 ? 35.3173+-6.3384 ? might be 1.0598x slower
max-boolean 3.7318+-1.7466 3.7235+-1.7438
method-on-number 19.5373+-0.7489 18.8823+-0.2969 might be 1.0347x faster
min-boolean 4.3577+-1.4755 3.6487+-1.2842 might be 1.1943x faster
minus-boolean-double 3.4778+-0.1002 3.4704+-0.0723
minus-boolean 3.0880+-0.3372 ? 3.2997+-0.7574 ? might be 1.0686x slower
misc-strict-eq 27.7247+-2.2888 26.5265+-0.6017 might be 1.0452x faster
mod-boolean-double 10.2841+-0.1909 ? 10.6675+-1.6069 ? might be 1.0373x slower
mod-boolean 7.6715+-0.1310 ? 7.6923+-0.1934 ?
mul-boolean-double 4.1125+-0.3914 ? 4.5187+-1.2493 ? might be 1.0988x slower
mul-boolean 3.2811+-0.3546 ? 4.1976+-1.7574 ? might be 1.2793x slower
neg-boolean 3.4562+-0.1266 ? 3.5859+-0.1795 ? might be 1.0375x slower
negative-zero-divide 0.6310+-0.2011 0.4673+-0.0052 might be 1.3504x faster
negative-zero-modulo 0.5446+-0.2039 ? 0.5478+-0.2032 ?
negative-zero-negate 0.4681+-0.0243 ? 0.5117+-0.1827 ? might be 1.0930x slower
nested-function-parsing 43.3522+-0.7818 ? 45.4155+-4.2638 ? might be 1.0476x slower
new-array-buffer-dead 126.4517+-14.4072 126.3300+-4.8367
new-array-buffer-push 8.0037+-0.3652 ? 8.1511+-0.2840 ? might be 1.0184x slower
new-array-dead 12.4084+-0.6225 12.3423+-0.7123
new-array-push 5.1072+-0.2989 4.9572+-0.1167 might be 1.0303x faster
no-inline-constructor 43.8755+-7.3234 42.7833+-7.4295 might be 1.0255x faster
number-test 3.9652+-0.1295 ? 4.0478+-0.1781 ? might be 1.0208x slower
object-closure-call 6.5798+-0.3480 6.4698+-0.2910 might be 1.0170x faster
object-get-own-property-symbols-on-large-array
3.6021+-0.1564 3.5439+-0.1304 might be 1.0164x faster
object-test 3.8364+-0.0323 ? 3.9052+-0.1376 ? might be 1.0179x slower
obvious-sink-pathology-taken 180.6387+-7.7682 179.2584+-3.4870
obvious-sink-pathology 35.9012+-3.3804 ? 40.1134+-5.8442 ? might be 1.1173x slower
obviously-elidable-new-object 32.8003+-3.1714 ? 34.4510+-4.6261 ? might be 1.0503x slower
plus-boolean-arith 2.9675+-0.0267 2.9670+-0.0126
plus-boolean-double 3.5007+-0.1313 ? 3.9582+-1.2665 ? might be 1.1307x slower
plus-boolean 3.1815+-0.1357 ? 3.2459+-0.0333 ? might be 1.0202x slower
poly-chain-access-different-prototypes-simple
3.7944+-1.3374 3.3771+-0.4628 might be 1.1236x faster
poly-chain-access-different-prototypes 3.1333+-0.0904 ? 3.1396+-0.0954 ?
poly-chain-access-simpler 3.8157+-1.3095 3.3300+-0.1167 might be 1.1459x faster
poly-chain-access 3.6393+-1.5275 3.2452+-0.1752 might be 1.1214x faster
poly-stricteq 67.1759+-0.5303 67.0428+-0.4958
polymorphic-array-call 1.7400+-0.3495 1.7088+-0.3440 might be 1.0183x faster
polymorphic-get-by-id 2.7263+-0.0705 ? 2.8226+-0.3748 ? might be 1.0353x slower
polymorphic-put-by-id 39.9305+-3.3895 38.7471+-0.0811 might be 1.0305x faster
polymorphic-put-by-val-with-string 39.9471+-0.4803 ? 41.3531+-3.8769 ? might be 1.0352x slower
polymorphic-put-by-val-with-symbol 41.6265+-4.7801 40.0350+-0.2082 might be 1.0398x faster
polymorphic-structure 16.4135+-5.3465 ? 19.2656+-5.1211 ? might be 1.1738x slower
polyvariant-monomorphic-get-by-id 6.5341+-0.4675 ? 6.7368+-1.2522 ? might be 1.0310x slower
proto-getter-access 12.3158+-0.3316 ? 13.3411+-3.4287 ? might be 1.0833x slower
prototype-access-with-mutating-prototype 5.6939+-1.0250 5.3767+-0.3946 might be 1.0590x faster
put-by-id-replace-and-transition 11.1661+-3.1679 9.9658+-0.2776 might be 1.1204x faster
put-by-id-slightly-polymorphic 3.8104+-1.7474 3.7346+-1.0761 might be 1.0203x faster
put-by-id 14.4199+-0.2703 ? 15.6075+-2.6253 ? might be 1.0824x slower
put-by-val-direct 0.5930+-0.2371 0.5372+-0.0371 might be 1.1040x faster
put-by-val-large-index-blank-indexing-type
7.5857+-3.5179 6.5258+-0.1514 might be 1.1624x faster
put-by-val-machine-int 3.1400+-0.1385 ? 3.1412+-0.1308 ?
put-by-val-with-string-replace-and-transition
15.5178+-0.2407 15.3887+-0.2680
put-by-val-with-string-slightly-polymorphic
4.4189+-1.2916 3.6038+-0.1421 might be 1.2262x faster
put-by-val-with-string 16.5367+-3.1231 15.1545+-0.8601 might be 1.0912x faster
put-by-val-with-symbol-replace-and-transition
15.8486+-0.7397 15.6663+-0.8234 might be 1.0116x faster
put-by-val-with-symbol-slightly-polymorphic
4.7633+-1.1432 4.4086+-0.0540 might be 1.0805x faster
put-by-val-with-symbol 15.6645+-2.2399 ? 15.9658+-2.9785 ? might be 1.0192x slower
rare-osr-exit-on-local 15.3105+-0.1956 15.3012+-0.8336
raytrace-with-empty-try-catch 8.0278+-0.3121 ? 8.3785+-1.1792 ? might be 1.0437x slower
raytrace-with-try-catch 12.9399+-0.8081 12.6443+-0.4406 might be 1.0234x faster
register-pressure-from-osr 22.3047+-2.9728 21.2069+-0.2895 might be 1.0518x faster
repeat-multi-get-by-offset 23.5850+-2.6275 22.5500+-0.6201 might be 1.0459x faster
richards-empty-try-catch 58.7188+-3.5167 58.3573+-4.4533
richards-try-catch 257.0297+-2.0833 ? 258.0800+-4.5105 ?
set-for-each 6.3321+-1.3459 5.7692+-0.1349 might be 1.0976x faster
set-for-of 9.6815+-0.2603 ? 10.4075+-0.7892 ? might be 1.0750x slower
setter-prototype 5.3187+-0.0225 ? 5.5297+-0.2154 ? might be 1.0397x slower
setter 4.8859+-0.1081 ? 4.9217+-0.2127 ?
simple-activation-demo 26.1995+-3.6598 25.2715+-0.6665 might be 1.0367x faster
simple-getter-access 18.8245+-0.1341 ? 20.1454+-3.7671 ? might be 1.0702x slower
simple-poly-call-nested 6.4501+-0.1688 ? 7.0026+-1.4664 ? might be 1.0857x slower
simple-poly-call 1.8655+-0.3796 ? 1.9112+-0.5588 ? might be 1.0245x slower
sin-boolean 15.6932+-0.5690 ? 19.3079+-4.5070 ? might be 1.2303x slower
singleton-scope 69.4395+-3.9628 68.0745+-0.4618 might be 1.0201x faster
sink-function 7.7264+-0.2739 ? 7.9872+-1.0125 ? might be 1.0338x slower
sink-huge-activation 13.6045+-0.5676 ? 15.8838+-6.8740 ? might be 1.1675x slower
sinkable-new-object-dag 73.0187+-5.0948 ? 76.2288+-7.2382 ? might be 1.0440x slower
sinkable-new-object-taken 52.5903+-2.2579 ? 52.7161+-4.4342 ?
sinkable-new-object 35.7292+-5.7231 ? 42.8521+-3.9729 ? might be 1.1994x slower
slow-array-profile-convergence 3.1956+-0.1694 ? 3.5724+-0.7134 ? might be 1.1179x slower
slow-convergence 3.2862+-0.1178 3.2042+-0.1611 might be 1.0256x faster
slow-ternaries 21.9963+-0.6626 ? 22.7493+-1.9351 ? might be 1.0342x slower
sorting-benchmark 22.0198+-0.2106 ? 22.1254+-0.3924 ?
sparse-conditional 1.8445+-0.4403 1.8080+-0.4386 might be 1.0202x faster
splice-to-remove 19.1860+-3.0973 ? 20.5285+-3.8682 ? might be 1.0700x slower
string-char-code-at 16.4811+-0.1245 ? 17.9492+-3.4444 ? might be 1.0891x slower
string-concat-object 3.2568+-1.5310 2.7701+-0.0334 might be 1.1757x faster
string-concat-pair-object 2.7024+-0.0437 ? 2.7042+-0.0129 ?
string-concat-pair-simple 15.0850+-3.3275 14.9020+-3.2059 might be 1.0123x faster
string-concat-simple 15.5145+-3.3192 ? 16.3742+-4.5347 ? might be 1.0554x slower
string-cons-repeat 9.0660+-0.5086 ? 11.0522+-3.9633 ? might be 1.2191x slower
string-cons-tower 10.6822+-3.7585 9.6222+-1.9797 might be 1.1102x faster
string-equality 22.6831+-1.1387 ? 23.8308+-5.1127 ? might be 1.0506x slower
string-get-by-val-big-char 8.4782+-0.6503 8.3351+-0.0741 might be 1.0172x faster
string-get-by-val-out-of-bounds-insane 4.2906+-0.1197 ? 4.4055+-0.1940 ? might be 1.0268x slower
string-get-by-val-out-of-bounds 6.7435+-1.4317 6.3022+-0.0313 might be 1.0700x faster
string-get-by-val 4.7283+-1.6192 4.2365+-1.1504 might be 1.1161x faster
string-hash 2.5840+-0.2269 2.5547+-0.2403 might be 1.0114x faster
string-long-ident-equality 19.6692+-4.9378 18.2817+-0.6614 might be 1.0759x faster
string-out-of-bounds 11.2960+-1.6247 10.7092+-0.2393 might be 1.0548x faster
string-repeat-arith 27.5391+-1.9109 ? 28.1527+-3.7653 ? might be 1.0223x slower
string-rope-with-object 18.6521+-0.3489 ? 19.1541+-0.6626 ? might be 1.0269x slower
string-sub 42.6467+-0.5155 42.6039+-0.5949
string-test 4.2801+-1.4018 4.1918+-1.1617 might be 1.0211x faster
string-var-equality 38.8900+-4.0058 37.6405+-0.1231 might be 1.0332x faster
structure-hoist-over-transitions 3.0292+-0.1974 ? 3.3814+-1.1046 ? might be 1.1163x slower
substring-concat-weird 49.4692+-3.8404 ? 51.2240+-4.6757 ? might be 1.0355x slower
substring-concat 54.3423+-5.2059 52.5309+-2.2165 might be 1.0345x faster
substring 58.0132+-2.2126 57.8923+-4.9299
switch-char-constant 3.1810+-0.0443 3.1597+-0.0167
switch-char 6.6553+-0.2347 6.6276+-0.0368
switch-constant 7.3944+-0.7979 ? 7.5482+-0.8993 ? might be 1.0208x slower
switch-string-basic-big-var 18.9204+-5.3080 17.9753+-2.7495 might be 1.0526x faster
switch-string-basic-big 18.0866+-5.4019 17.5972+-5.3051 might be 1.0278x faster
switch-string-basic-var 18.3762+-3.1430 ? 21.3322+-4.6701 ? might be 1.1609x slower
switch-string-basic 16.5362+-5.1309 16.5222+-5.0624
switch-string-big-length-tower-var 23.3515+-3.1379 22.4139+-1.0163 might be 1.0418x faster
switch-string-length-tower-var 19.9737+-1.3367 19.2047+-0.2160 might be 1.0400x faster
switch-string-length-tower 17.4189+-4.1119 16.1301+-7.7999 might be 1.0799x faster
switch-string-short 15.1048+-4.4699 ? 15.4943+-3.8785 ? might be 1.0258x slower
switch 12.0580+-0.6427 ? 12.1437+-0.9935 ?
symbol-tostringtag 4.0046+-0.2030 ? 4.0290+-0.1059 ?
tear-off-arguments-simple 3.2958+-0.3581 ? 3.4103+-0.1020 ? might be 1.0347x slower
tear-off-arguments 4.1748+-0.1211 ? 4.3221+-0.5012 ? might be 1.0353x slower
temporal-structure 16.0685+-3.3455 ? 18.5682+-4.4115 ? might be 1.1556x slower
to-int32-boolean 17.5165+-0.3005 ? 18.8663+-4.9237 ? might be 1.0771x slower
try-catch-get-by-val-cloned-arguments 9.3058+-2.3436 ? 11.0297+-4.1756 ? might be 1.1852x slower
try-catch-get-by-val-direct-arguments 2.6248+-0.0157 ! 2.8850+-0.1473 ! definitely 1.0992x slower
try-catch-get-by-val-scoped-arguments 5.3662+-0.3458 ? 5.3768+-0.1001 ?
typed-array-get-set-by-val-profiling 22.9412+-0.4525 ? 23.6550+-1.8879 ? might be 1.0311x slower
undefined-property-access 362.0250+-8.8046 356.6633+-5.9710 might be 1.0150x faster
undefined-test 4.0873+-0.1296 ? 4.0973+-0.0842 ?
unprofiled-licm 13.1047+-4.2298 10.7418+-0.4653 might be 1.2200x faster
v8-raytrace-with-empty-try-catch 64.9070+-1.5935 64.5674+-0.8632
v8-raytrace-with-try-catch-high-frequency-throws
484.6123+-6.8688 ? 487.7638+-11.8701 ?
v8-raytrace-with-try-catch 82.5383+-0.9324 ? 85.5640+-6.8692 ? might be 1.0367x slower
varargs-call 15.0967+-0.3952 ? 16.6340+-5.0543 ? might be 1.1018x slower
varargs-construct-inline 26.9190+-3.7036 25.7452+-0.4398 might be 1.0456x faster
varargs-construct 23.8963+-2.9078 23.5998+-3.0649 might be 1.0126x faster
varargs-inline 10.3049+-2.0158 ? 11.3207+-2.6863 ? might be 1.0986x slower
varargs-strict-mode 11.5182+-0.3448 11.2585+-0.1278 might be 1.0231x faster
varargs 11.2456+-0.1749 ? 12.6624+-2.4528 ? might be 1.1260x slower
weird-inlining-const-prop 2.6307+-0.0553 ? 3.1155+-0.9818 ? might be 1.1843x slower
<geometric> 10.7213+-0.0477 ? 10.8419+-0.0995 ? might be 1.0112x slower
Baseline Mine
Geomean of preferred means:
<scaled-result> 30.6895+-0.0238 ? 30.8440+-0.2743 ? might be 1.0050x slower
The perf numbers look good! Comment on attachment 270327 [details]
Patch
yay, so i've added r? ;)
Committed r195938: <http://trac.webkit.org/changeset/195938> |