NEW 155342
[JSC] IRC do not remove useless Move32 that we coalesced before spilling 
https://bugs.webkit.org/show_bug.cgi?id=155342
Summary [JSC] IRC do not remove useless Move32 that we coalesced before spilling
Benjamin Poulain
Reported 2016-03-10 18:32:16 PST
[JSC] IRC do not remove useless Move32 that we coalesced before spilling
Attachments
Patch (8.92 KB, patch)
2016-03-10 21:25 PST, Benjamin Poulain 		no flags
DetailsFormatted DiffDiff
Patch (10.13 KB, patch)
2016-03-10 21:35 PST, Benjamin Poulain 		beidson: review-
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Benjamin Poulain
Comment 1 2016-03-10 21:25:19 PST
Created attachment 273683 [details] Patch
Benjamin Poulain
Comment 2 2016-03-10 21:35:31 PST
Created attachment 273686 [details] Patch
Benjamin Poulain
Comment 3 2016-03-11 18:11:04 PST
Results for https://bug-155342-attachments.webkit.org/attachment.cgi?id=273686 on Haswell: Conf#1 Conf#2 SunSpider: 3d-cube 4.5904+-0.3965 4.3994+-0.0478 might be 1.0434x faster 3d-morph 4.8700+-0.1228 4.8302+-0.0450 3d-raytrace 5.1602+-0.0437 ? 5.2133+-0.0657 ? might be 1.0103x slower access-binary-trees 1.9512+-0.0181 ? 1.9846+-0.0293 ? might be 1.0171x slower access-fannkuch 5.7936+-0.1251 ? 5.8093+-0.1534 ? access-nbody 2.4248+-0.0240 ? 2.4632+-0.0652 ? might be 1.0159x slower access-nsieve 2.8377+-0.0872 2.8148+-0.0614 bitops-3bit-bits-in-byte 1.0799+-0.0361 1.0628+-0.0104 might be 1.0161x faster bitops-bits-in-byte 2.6172+-0.0496 2.5917+-0.0546 bitops-bitwise-and 1.8828+-0.0135 ? 1.9543+-0.0723 ? might be 1.0380x slower bitops-nsieve-bits 2.8921+-0.0276 ? 2.9012+-0.0298 ? controlflow-recursive 2.1833+-0.0186 ? 2.2570+-0.1069 ? might be 1.0338x slower crypto-aes 3.7414+-0.0722 3.7093+-0.0486 crypto-md5 2.3389+-0.0319 2.3359+-0.0227 crypto-sha1 2.1768+-0.0263 ? 2.1952+-0.0695 ? date-format-tofte 6.2836+-0.1267 6.2339+-0.0705 date-format-xparb 4.5617+-0.2277 4.4742+-0.1232 might be 1.0196x faster math-cordic 2.6261+-0.0279 2.6205+-0.0165 math-partial-sums 4.5356+-0.0610 ? 4.5535+-0.0401 ? math-spectral-norm 1.8401+-0.0129 ? 1.8599+-0.0265 ? might be 1.0107x slower regexp-dna 5.5099+-0.0376 ? 5.5340+-0.0658 ? string-base64 4.1466+-0.0422 4.1138+-0.0404 string-fasta 5.4581+-0.0670 ? 5.4751+-0.0611 ? string-tagcloud 7.6190+-0.0657 7.5449+-0.0372 string-unpack-code 17.3301+-0.2243 ? 17.6017+-0.1978 ? might be 1.0157x slower string-validate-input 3.9499+-0.0558 3.9362+-0.0449 <arithmetic> 4.2462+-0.0207 ? 4.2488+-0.0159 ? might be 1.0006x slower Conf#1 Conf#2 Octane: encrypt 0.15024+-0.00174 ? 0.15078+-0.00130 ? decrypt 2.73268+-0.02671 ^ 2.66323+-0.00564 ^ definitely 1.0261x faster deltablue x2 0.13295+-0.00345 ? 0.13315+-0.00375 ? earley 0.30260+-0.00220 ? 0.30310+-0.00220 ? boyer 4.76912+-0.03091 4.74895+-0.01830 navier-stokes x2 4.68571+-0.00509 ? 4.68751+-0.00779 ? raytrace x2 0.91863+-0.00337 ? 0.91991+-0.00369 ? richards x2 0.07836+-0.00054 ? 0.07861+-0.00061 ? splay x2 0.39410+-0.00278 0.39249+-0.00245 regexp x2 19.81391+-0.17900 19.64860+-0.08848 pdfjs x2 37.66691+-0.32420 37.29424+-0.20520 mandreel x2 39.74578+-0.12396 ? 39.92613+-0.18717 ? gbemu x2 22.69210+-0.18133 ? 22.83825+-0.27858 ? closure 0.54799+-0.00138 0.54689+-0.00185 jquery 6.94570+-0.02240 6.93464+-0.02176 box2d x2 8.67987+-0.05291 8.65242+-0.04129 zlib x2 367.40558+-6.97174 365.19871+-7.59193 typescript x2 621.34783+-7.44200 617.04311+-4.29474 <geometric> 5.04896+-0.01114 5.03712+-0.01543 might be 1.0024x faster Conf#1 Conf#2 Kraken: ai-astar 82.593+-1.278 ? 82.828+-0.989 ? audio-beat-detection 42.836+-0.173 ? 42.876+-0.122 ? audio-dft 88.103+-0.312 ? 88.275+-0.435 ? audio-fft 33.828+-0.014 ? 33.874+-0.068 ? audio-oscillator 44.807+-0.161 ! 45.422+-0.129 ! definitely 1.0137x slower imaging-darkroom 57.156+-0.109 ^ 56.896+-0.087 ^ definitely 1.0046x faster imaging-desaturate 41.856+-0.088 ? 41.922+-0.123 ? imaging-gaussian-blur 59.553+-2.478 ? 62.629+-1.409 ? might be 1.0517x slower json-parse-financial 34.987+-0.215 ? 34.988+-0.146 ? json-stringify-tinderbox 22.105+-0.459 22.058+-0.495 stanford-crypto-aes 38.249+-0.145 ? 38.467+-0.390 ? stanford-crypto-ccm 34.474+-0.448 34.340+-0.556 stanford-crypto-pbkdf2 95.324+-0.290 ? 95.324+-0.645 ? stanford-crypto-sha256-iterative 36.587+-0.100 ! 37.129+-0.397 ! definitely 1.0148x slower <arithmetic> 50.890+-0.247 ? 51.216+-0.151 ? might be 1.0064x slower Conf#1 Conf#2 AsmBench: bigfib.cpp 408.5130+-5.1338 ? 417.0513+-6.4568 ? might be 1.0209x slower cray.c 339.3888+-1.5461 337.5797+-1.1952 dry.c 421.9306+-32.3185 408.9466+-19.9906 might be 1.0317x faster FloatMM.c 679.9042+-1.4667 679.2250+-0.7651 gcc-loops.cpp 3489.9343+-10.3789 3482.6482+-11.8215 n-body.c 769.1767+-2.9152 ^ 764.4453+-1.1407 ^ definitely 1.0062x faster Quicksort.c 369.5908+-0.9107 ! 376.4218+-1.0611 ! definitely 1.0185x slower stepanov_container.cpp 3022.2047+-11.7857 ? 3032.7318+-9.9704 ? Towers.c 254.3689+-0.7499 ? 254.4427+-0.3885 ? <geometric> 677.6342+-5.3199 ? 677.6917+-2.9817 ? might be 1.0001x slower Conf#1 Conf#2 Geomean of preferred means: <scaled-result> 29.3221+-0.0793 ? 29.3574+-0.0495 ? might be 1.0012x slower
Benjamin Poulain
Comment 4 2016-03-11 20:36:10 PST
Below is the other version. Both are pretty neutral, which makes sense since I am only removing a few Move32. Conf#1 Conf#2 SunSpider: 3d-cube 4.3814+-0.0538 4.3647+-0.0370 3d-morph 4.8936+-0.1469 4.7916+-0.0337 might be 1.0213x faster 3d-raytrace 5.1662+-0.0527 ? 5.1759+-0.0480 ? access-binary-trees 1.9640+-0.0303 1.9453+-0.0259 access-fannkuch 5.7847+-0.0703 5.7533+-0.0511 access-nbody 2.4827+-0.0762 2.4208+-0.0446 might be 1.0256x faster access-nsieve 2.8132+-0.0690 ? 2.8179+-0.0720 ? bitops-3bit-bits-in-byte 1.0682+-0.0174 1.0532+-0.0069 might be 1.0142x faster bitops-bits-in-byte 2.5669+-0.0410 ? 2.5746+-0.0221 ? bitops-bitwise-and 1.8892+-0.0228 ? 1.9109+-0.0396 ? might be 1.0114x slower bitops-nsieve-bits 2.9689+-0.1431 2.8884+-0.0375 might be 1.0279x faster controlflow-recursive 2.2464+-0.0881 2.1726+-0.0239 might be 1.0340x faster crypto-aes 3.7689+-0.0905 3.7267+-0.0419 might be 1.0113x faster crypto-md5 2.3500+-0.0314 ? 2.3552+-0.0357 ? crypto-sha1 2.1513+-0.0091 ? 2.1712+-0.0300 ? date-format-tofte 6.4200+-0.1957 6.2467+-0.0660 might be 1.0278x faster date-format-xparb 4.4623+-0.0622 4.3977+-0.0343 might be 1.0147x faster math-cordic 2.6284+-0.0444 ? 2.6834+-0.0966 ? might be 1.0209x slower math-partial-sums 4.5336+-0.0291 ? 4.5395+-0.0399 ? math-spectral-norm 1.8596+-0.0272 ? 1.9012+-0.1087 ? might be 1.0223x slower regexp-dna 5.5808+-0.0843 5.5030+-0.0472 might be 1.0141x faster string-base64 4.2216+-0.1958 ? 4.2232+-0.1986 ? string-fasta 5.4663+-0.0464 5.4397+-0.0372 string-tagcloud 7.5586+-0.0327 7.5356+-0.0282 string-unpack-code 17.2149+-0.2165 ? 17.3621+-0.1317 ? string-validate-input 3.9108+-0.0412 ? 3.9690+-0.1313 ? might be 1.0149x slower <arithmetic> 4.2443+-0.0164 4.2278+-0.0120 might be 1.0039x faster Conf#1 Conf#2 Octane: encrypt 0.15129+-0.00113 ? 0.15161+-0.00146 ? decrypt 2.74535+-0.02365 2.74443+-0.01494 deltablue x2 0.13439+-0.00671 0.13105+-0.00148 might be 1.0255x faster earley 0.30394+-0.00289 ? 0.30480+-0.00364 ? boyer 4.74888+-0.02294 ? 4.74993+-0.02105 ? navier-stokes x2 4.68781+-0.00525 ? 4.69125+-0.00497 ? raytrace x2 0.91628+-0.00355 ? 0.92015+-0.00341 ? richards x2 0.07868+-0.00073 0.07804+-0.00075 splay x2 0.39193+-0.00283 ? 0.39213+-0.00277 ? regexp x2 19.84572+-0.17770 19.75186+-0.09063 pdfjs x2 37.49671+-0.37009 37.29055+-0.14403 mandreel x2 40.03609+-0.22106 40.03458+-0.15003 gbemu x2 22.68146+-0.15683 ? 22.69180+-0.14970 ? closure 0.54714+-0.00215 0.54635+-0.00149 jquery 6.94017+-0.03124 6.92982+-0.02555 box2d x2 8.60635+-0.04164 ! 8.68056+-0.02489 ! definitely 1.0086x slower zlib x2 369.56383+-2.69879 367.93581+-6.71304 typescript x2 622.70414+-6.65511 618.16682+-5.48682 <geometric> 5.05359+-0.01821 5.04096+-0.00758 might be 1.0025x faster Conf#1 Conf#2 Kraken: ai-astar 81.789+-0.423 ? 82.144+-0.529 ? audio-beat-detection 42.728+-0.042 42.691+-0.071 audio-dft 87.972+-0.342 ? 88.402+-0.426 ? audio-fft 33.888+-0.063 33.860+-0.020 audio-oscillator 44.785+-0.139 ? 44.989+-0.467 ? imaging-darkroom 57.057+-0.085 ? 57.217+-0.165 ? imaging-desaturate 42.664+-1.015 42.048+-0.291 might be 1.0146x faster imaging-gaussian-blur 60.205+-2.769 59.286+-2.578 might be 1.0155x faster json-parse-financial 35.185+-0.616 35.132+-0.165 json-stringify-tinderbox 21.484+-0.325 ! 22.306+-0.490 ! definitely 1.0382x slower stanford-crypto-aes 38.350+-0.225 ? 38.969+-0.534 ? might be 1.0161x slower stanford-crypto-ccm 34.219+-0.494 ? 34.513+-0.434 ? stanford-crypto-pbkdf2 95.373+-0.248 ? 95.676+-0.771 ? stanford-crypto-sha256-iterative 36.684+-0.176 36.603+-0.149 <arithmetic> 50.884+-0.200 ? 50.988+-0.257 ? might be 1.0020x slower Conf#1 Conf#2 AsmBench: bigfib.cpp 408.9368+-5.1300 ? 413.3338+-6.0731 ? might be 1.0108x slower cray.c 340.0032+-1.4377 339.4512+-1.9469 dry.c 405.7408+-16.2953 ? 406.0636+-22.7277 ? FloatMM.c 679.5892+-1.6460 679.1690+-1.8303 gcc-loops.cpp 3491.4634+-9.8252 ? 3494.4514+-18.9449 ? n-body.c 766.6519+-1.8136 765.5156+-1.2216 Quicksort.c 369.9780+-0.8420 ? 371.5780+-1.0645 ? stepanov_container.cpp 3026.4990+-13.0285 3021.7035+-14.2566 Towers.c 254.3937+-0.7217 253.6097+-0.3408 <geometric> 675.2153+-3.2327 ? 675.7049+-3.5599 ? might be 1.0007x slower Conf#1 Conf#2 Geomean of preferred means: <scaled-result> 29.2989+-0.0636 29.2724+-0.0721 might be 1.0009x faster
Brady Eidson
Comment 5 2017-08-19 16:00:46 PDT
Comment on attachment 273686 [details] Patch r-, as this has been pending review for over a year now. It is near-impossible that this patch still applies to trunk and unlikely to still be relevant in its current form.
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