142725 2015-03-16 07:14:38 -0700 [ARM] Enable generating idiv instructions if it is supported 2015-03-16 11:45:24 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 108645 1 ossy ossy benjamin cmarcelo commit-queue zherczeg oldest_to_newest 1077401 0 ossy 2015-03-16 07:14:38 -0700 Integer division instructions (sdiv/usdiv) is supported from Cortex-A15, we should use these instructions on Linux too, not for only Apple ARMv7S. 1077402 1 248727 ossy 2015-03-16 07:23:50 -0700 Created attachment 248727 Patch The ARM traditional implementation is based on ARM ® Architecture Reference Manual - DDI0406C_C_arm_architecture_reference_manual.pdf: A8.8.165 and A8.8.248. 1077406 2 commit-queue 2015-03-16 07:27:02 -0700 Attachment 248727 did not pass style-queue: ERROR: Source/JavaScriptCore/assembler/ARMAssembler.h:220: enum members should use InterCaps with an initial capital letter. [readability/enum_casing] [4] ERROR: Source/JavaScriptCore/assembler/ARMAssembler.h:221: enum members should use InterCaps with an initial capital letter. [readability/enum_casing] [4] Total errors found: 2 in 8 files If any of these errors are false positives, please file a bug against check-webkit-style. 1077407 3 ossy 2015-03-16 07:27:57 -0700 (In reply to comment #1) > Created attachment 248727 [details] > Patch note: all jsc stress tests pass, these instructions are covered by SunSpider. Performance results: - ARM traditional: 3.9% on SunSpider - ARM Thumb2: 4.1% on SunSpider (no change on V8 test suite) detailed results on ARM: TEST COMPARISON FROM TO DETAILS =============================================================================== ** TOTAL **: 1.039x as fast 1838.1ms +/- 0.1% 1769.4ms +/- 0.1% significant =============================================================================== 3d: 1.010x as fast 414.7ms +/- 0.1% 410.7ms +/- 0.1% significant cube: ?? 123.3ms +/- 0.3% 123.6ms +/- 0.3% not conclusive: might be *1.002x as slow* morph: - 182.0ms +/- 0.0% 182.1ms +/- 0.1% raytrace: 1.042x as fast 109.4ms +/- 0.3% 105.0ms +/- 0.5% significant access: ?? 164.9ms +/- 0.1% 165.1ms +/- 0.1% not conclusive: might be *1.001x as slow* binary-trees: ?? 19.0ms +/- 0.0% 19.1ms +/- 1.2% not conclusive: might be *1.005x as slow* fannkuch: ?? 56.9ms +/- 0.4% 57.0ms +/- 0.0% not conclusive: might be *1.002x as slow* nbody: - 70.0ms +/- 0.0% 70.0ms +/- 0.0% nsieve: - 19.0ms +/- 0.0% 19.0ms +/- 0.0% bitops: ?? 82.5ms +/- 0.5% 82.9ms +/- 0.8% not conclusive: might be *1.005x as slow* 3bit-bits-in-byte: - 7.0ms +/- 0.0% 7.0ms +/- 0.0% bits-in-byte: - 25.0ms +/- 0.0% 25.0ms +/- 0.0% bitwise-and: - 16.0ms +/- 0.0% 16.0ms +/- 0.0% nsieve-bits: ?? 34.5ms +/- 1.1% 34.9ms +/- 1.8% not conclusive: might be *1.012x as slow* controlflow: - 18.0ms +/- 0.0% 18.0ms +/- 0.0% recursive: - 18.0ms +/- 0.0% 18.0ms +/- 0.0% crypto: 1.055x as fast 154.3ms +/- 0.2% 146.3ms +/- 0.3% significant aes: 1.036x as fast 69.1ms +/- 0.3% 66.7ms +/- 0.5% significant md5: 1.077x as fast 50.2ms +/- 0.6% 46.6ms +/- 0.8% significant sha1: 1.061x as fast 35.0ms +/- 0.0% 33.0ms +/- 0.0% significant date: 1.080x as fast 209.6ms +/- 0.4% 194.1ms +/- 0.8% significant format-tofte: ?? 106.0ms +/- 0.4% 106.3ms +/- 0.3% not conclusive: might be *1.003x as slow* format-xparb: 1.180x as fast 103.6ms +/- 0.9% 87.8ms +/- 1.6% significant math: 1.020x as fast 172.9ms +/- 0.1% 169.5ms +/- 0.2% significant cordic: - 25.8ms +/- 1.2% 25.5ms +/- 1.5% partial-sums: - 131.1ms +/- 0.2% 131.0ms +/- 0.0% spectral-norm: 1.23x as fast 16.0ms +/- 0.0% 13.0ms +/- 0.0% significant regexp: - 65.8ms +/- 0.5% 65.7ms +/- 0.5% dna: - 65.8ms +/- 0.5% 65.7ms +/- 0.5% string: 1.074x as fast 555.4ms +/- 0.3% 517.1ms +/- 0.3% significant base64: 1.018x as fast 34.7ms +/- 1.0% 34.1ms +/- 0.7% significant fasta: 1.26x as fast 78.7ms +/- 0.4% 62.6ms +/- 1.2% significant tagcloud: 1.036x as fast 113.7ms +/- 2.0% 109.7ms +/- 0.9% significant unpack-code: 1.020x as fast 260.9ms +/- 0.6% 255.7ms +/- 0.8% significant validate-input: 1.23x as fast 67.4ms +/- 1.0% 55.0ms +/- 1.1% significant detailed results on Thumb2: TEST COMPARISON FROM TO DETAILS =============================================================================== ** TOTAL **: 1.041x as fast 1733.0ms +/- 0.2% 1664.8ms +/- 0.2% significant =============================================================================== 3d: 1.011x as fast 399.4ms +/- 0.2% 395.1ms +/- 0.2% significant cube: - 120.6ms +/- 0.4% 120.6ms +/- 0.4% morph: ?? 181.1ms +/- 0.1% 181.5ms +/- 0.2% not conclusive: might be *1.002x as slow* raytrace: 1.051x as fast 97.7ms +/- 0.4% 93.0ms +/- 0.4% significant access: - 131.9ms +/- 0.3% 132.0ms +/- 0.4% binary-trees: ?? 18.6ms +/- 2.0% 18.8ms +/- 1.6% not conclusive: might be *1.011x as slow* fannkuch: - 57.3ms +/- 0.6% 57.2ms +/- 0.5% nbody: - 38.0ms +/- 0.0% 38.0ms +/- 0.0% nsieve: - 18.0ms +/- 0.0% 18.0ms +/- 0.0% bitops: ?? 80.3ms +/- 0.6% 80.6ms +/- 0.5% not conclusive: might be *1.004x as slow* 3bit-bits-in-byte: - 6.0ms +/- 0.0% 6.0ms +/- 0.0% bits-in-byte: - 25.0ms +/- 0.0% 25.0ms +/- 0.0% bitwise-and: - 16.8ms +/- 1.8% 16.8ms +/- 1.8% nsieve-bits: ?? 32.5ms +/- 1.2% 32.8ms +/- 0.9% not conclusive: might be *1.009x as slow* controlflow: - 18.0ms +/- 0.0% 18.0ms +/- 0.0% recursive: - 18.0ms +/- 0.0% 18.0ms +/- 0.0% crypto: 1.057x as fast 151.2ms +/- 0.4% 143.0ms +/- 0.3% significant aes: 1.041x as fast 68.8ms +/- 0.4% 66.1ms +/- 0.3% significant md5: 1.076x as fast 48.4ms +/- 0.8% 45.0ms +/- 0.7% significant sha1: 1.066x as fast 34.0ms +/- 0.0% 31.9ms +/- 0.7% significant date: 1.082x as fast 202.8ms +/- 0.3% 187.4ms +/- 0.7% significant format-tofte: ?? 103.1ms +/- 0.2% 103.6ms +/- 0.7% not conclusive: might be *1.005x as slow* format-xparb: 1.190x as fast 99.7ms +/- 0.6% 83.8ms +/- 1.4% significant math: 1.019x as fast 148.8ms +/- 0.2% 146.0ms +/- 0.0% significant cordic: ?? 21.8ms +/- 1.4% 22.0ms +/- 0.0% not conclusive: might be *1.009x as slow* partial-sums: - 111.0ms +/- 0.0% 111.0ms +/- 0.0% spectral-norm: 1.23x as fast 16.0ms +/- 0.0% 13.0ms +/- 0.0% significant regexp: ?? 61.3ms +/- 0.6% 61.6ms +/- 0.6% not conclusive: might be *1.005x as slow* dna: ?? 61.3ms +/- 0.6% 61.6ms +/- 0.6% not conclusive: might be *1.005x as slow* string: 1.076x as fast 539.3ms +/- 0.4% 501.1ms +/- 0.5% significant base64: - 33.0ms +/- 0.0% 33.0ms +/- 0.0% fasta: 1.31x as fast 70.0ms +/- 0.0% 53.6ms +/- 1.7% significant tagcloud: *1.028x as slow* 106.9ms +/- 0.6% 109.9ms +/- 0.8% significant unpack-code: 1.042x as fast 263.7ms +/- 0.9% 253.1ms +/- 0.9% significant validate-input: 1.28x as fast 65.7ms +/- 0.9% 51.5ms +/- 1.0% significant 1077508 4 248727 commit-queue 2015-03-16 11:45:20 -0700 Comment on attachment 248727 Patch Clearing flags on attachment: 248727 Committed r181570: <http://trac.webkit.org/changeset/181570> 1077509 5 commit-queue 2015-03-16 11:45:24 -0700 All reviewed patches have been landed. Closing bug. 248727 2015-03-16 07:23:50 -0700 2015-03-16 11:45:20 -0700 Patch bug-142725-20150316072320.patch text/plain 8763 ossy U3VidmVyc2lvbiBSZXZpc2lvbjogMTgxNTQ4CmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCBj ZWIyMDEwMTBhOTU0OTYwYzhjZGU1YTNkNmM3YTc1MzM4MDI3ZGU4Li43NTE5ODE2YzFlMTc4YTli MGJkNjRmZjdmZWY0M2VmYjYyYTVhYTFiIDEwMDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNjcmlwdENv cmUvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKQEAgLTEs MyArMSwyNSBAQAorMjAxNS0wMy0xNiAgQ3NhYmEgT3N6dHJvZ29uw6FjICA8b3NzeUB3ZWJraXQu b3JnPgorCisgICAgICAgIFtBUk1dIEVuYWJsZSBnZW5lcmF0aW5nIGlkaXYgaW5zdHJ1Y3Rpb25z IGlmIGl0IGlzIHN1cHBvcnRlZAorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93 X2J1Zy5jZ2k/aWQ9MTQyNzI1CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISku CisKKyAgICAgICAgKiBhc3NlbWJsZXIvQVJNQXNzZW1ibGVyLmg6IEFkZGVkIHNkaXYgYW5kIHVk aXYgaW1wbGVtZW50YXRpb24gZm9yIEFSTSBUcmFkaXRpb25hbCBpbnN0cnVjdGlvbiBzZXQuCisg 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