Created attachment 273148 [details] Patch

Created attachment 273155 [details] Patch

Created attachment 273157 [details] Patch

Haswell: Conf#1 Conf#2 SunSpider: 3d-cube 4.8003+-0.0662 ? 5.1148+-0.3986 ? might be 1.0655x slower 3d-morph 5.3795+-0.1627 ? 5.4474+-0.1276 ? might be 1.0126x slower 3d-raytrace 5.7165+-0.0494 5.7046+-0.1161 access-binary-trees 2.2263+-0.0478 ? 2.2829+-0.0773 ? might be 1.0254x slower access-fannkuch 6.1489+-0.1663 ? 6.2672+-0.2304 ? might be 1.0193x slower access-nbody 2.6852+-0.0494 ? 2.8182+-0.2642 ? might be 1.0495x slower access-nsieve 3.0815+-0.0878 ? 3.1353+-0.1370 ? might be 1.0175x slower bitops-3bit-bits-in-byte 1.2178+-0.0370 1.1804+-0.0171 might be 1.0316x faster bitops-bits-in-byte 3.3653+-0.0795 ? 3.3761+-0.0735 ? bitops-bitwise-and 2.0963+-0.0427 2.0389+-0.0246 might be 1.0281x faster bitops-nsieve-bits 3.0371+-0.0385 ? 3.0596+-0.0482 ? controlflow-recursive 2.3646+-0.0115 ? 2.4289+-0.1070 ? might be 1.0272x slower crypto-aes 4.1038+-0.0506 4.1019+-0.0728 crypto-md5 2.6436+-0.0490 ? 2.6775+-0.1084 ? might be 1.0128x slower crypto-sha1 2.3461+-0.0470 ? 2.3538+-0.0296 ? date-format-tofte 6.8753+-0.1775 ? 6.9790+-0.1501 ? might be 1.0151x slower date-format-xparb 5.1832+-0.1537 4.9995+-0.1369 might be 1.0367x faster math-cordic 2.9384+-0.0571 2.8653+-0.0485 might be 1.0255x faster math-partial-sums 5.0867+-0.2597 4.9308+-0.1106 might be 1.0316x faster math-spectral-norm 2.0729+-0.0468 2.0329+-0.0318 might be 1.0197x faster regexp-dna 6.1860+-0.1495 6.1163+-0.1232 might be 1.0114x faster string-base64 4.5831+-0.1906 4.4120+-0.0379 might be 1.0388x faster string-fasta 6.0281+-0.1170 5.9026+-0.0574 might be 1.0213x faster string-tagcloud 8.0834+-0.0289 ! 8.2203+-0.1070 ! definitely 1.0169x slower string-unpack-code 19.1920+-0.6869 ? 19.3735+-0.7269 ? string-validate-input 4.3247+-0.1022 4.2804+-0.0574 might be 1.0103x faster <arithmetic> 4.6833+-0.0423 ? 4.6962+-0.0385 ? might be 1.0027x slower Conf#1 Conf#2 Octane: encrypt 0.16444+-0.00329 0.16126+-0.00327 might be 1.0198x faster decrypt 2.87520+-0.04421 2.85984+-0.03903 deltablue x2 0.14123+-0.00478 ? 0.14499+-0.00953 ? might be 1.0266x slower earley 0.28890+-0.00441 0.28594+-0.00168 might be 1.0103x faster boyer 5.01821+-0.13913 4.95518+-0.10778 might be 1.0127x faster navier-stokes x2 4.96636+-0.02585 ? 4.97091+-0.07059 ? raytrace x2 0.91223+-0.01860 0.89659+-0.00995 might be 1.0174x faster richards x2 0.08255+-0.00167 ? 0.08287+-0.00162 ? splay x2 0.35288+-0.00482 0.35120+-0.00347 regexp x2 20.04105+-0.48806 ? 20.60547+-0.21352 ? might be 1.0282x slower pdfjs x2 39.34641+-0.71709 39.09899+-0.55979 mandreel x2 43.48000+-0.80517 ? 43.64120+-1.10664 ? gbemu x2 24.97394+-0.33305 ? 25.21407+-0.52919 ? closure 0.57005+-0.00261 ? 0.58472+-0.01394 ? might be 1.0257x slower jquery 7.69550+-0.18560 7.59527+-0.12343 might be 1.0132x faster box2d x2 9.61655+-0.23430 9.43202+-0.14491 might be 1.0196x faster zlib x2 384.02105+-10.25770 ? 385.91153+-6.11887 ? typescript x2 668.99503+-7.72064 662.06196+-6.21916 might be 1.0105x faster <geometric> 5.27345+-0.02490 5.27318+-0.02285 might be 1.0001x faster Conf#1 Conf#2 Kraken: ai-astar 98.116+-2.810 97.417+-2.953 audio-beat-detection 47.081+-0.598 ? 47.511+-0.229 ? audio-dft 98.034+-1.363 ? 98.619+-1.711 ? audio-fft 35.933+-0.425 35.731+-0.056 audio-oscillator 49.728+-1.085 49.556+-1.127 imaging-darkroom 62.209+-1.718 60.683+-0.750 might be 1.0251x faster imaging-desaturate 46.016+-1.614 45.634+-1.152 imaging-gaussian-blur 68.638+-1.509 65.777+-3.316 might be 1.0435x faster json-parse-financial 37.640+-1.249 36.958+-0.737 might be 1.0185x faster json-stringify-tinderbox 24.246+-0.601 ? 24.555+-0.815 ? might be 1.0128x slower stanford-crypto-aes 39.997+-0.500 ? 40.044+-0.430 ? stanford-crypto-ccm 37.063+-1.209 36.608+-0.643 might be 1.0124x faster stanford-crypto-pbkdf2 103.551+-1.999 102.533+-1.503 stanford-crypto-sha256-iterative 39.235+-0.509 ? 39.895+-0.885 ? might be 1.0168x slower <arithmetic> 56.249+-0.362 55.823+-0.337 might be 1.0076x faster Conf#1 Conf#2 AsmBench: bigfib.cpp 442.2368+-5.9685 ? 443.4775+-8.8077 ? cray.c 368.2074+-4.8122 ? 370.4352+-6.7999 ? dry.c 450.4179+-33.2786 438.0829+-20.7072 might be 1.0282x faster FloatMM.c 722.5146+-12.2548 ? 722.6382+-11.6831 ? gcc-loops.cpp 3698.1718+-42.1452 ? 3709.5201+-44.4462 ? n-body.c 822.4819+-14.0351 ? 830.5771+-16.6330 ? Quicksort.c 402.4949+-8.2802 ? 403.0941+-9.3269 ? stepanov_container.cpp 3332.6366+-62.7019 ? 3339.1666+-59.4226 ? Towers.c 273.3234+-5.8376 267.9595+-0.2123 might be 1.0200x faster <geometric> 729.5824+-7.0101 728.0901+-6.4356 might be 1.0020x faster Conf#1 Conf#2 Geomean of preferred means: <scaled-result> 31.7270+-0.0908 31.6724+-0.1127 might be 1.0017x faster

Comment on attachment 273157 [details] Patch r=me

Comment on attachment 273157 [details] Patch Clearing flags on attachment: 273157 Committed r197687: <http://trac.webkit.org/changeset/197687>

All reviewed patches have been landed. Closing bug.

Do you know any particular test case that should fail if moveZeroToDouble does not work properly?

(In reply to comment #8) > Do you know any particular test case that should fail if moveZeroToDouble > does not work properly? The "math-XXX" stress tests of JSC should cover that.