- 20 Mar, 2018 7 commits
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Than McIntosh authored
Fix a bug in the code that generates the pre-inlined variable declaration table used as raw material for emitting DWARF inline routine records. The fix for issue 23704 altered the recipe for assigning file/line/col to variables in one part of the compiler, but didn't update a similar recipe in the code for variable tracking. Added a new test that should catch problems of a similar nature. Fixes #24460. Change-Id: I255c036637f4151aa579c0e21d123fd413724d61 Reviewed-on: https://go-review.googlesource.com/101676Reviewed-by:
Alessandro Arzilli <alessandro.arzilli@gmail.com> Reviewed-by:
Heschi Kreinick <heschi@google.com>
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Michael Munday authored
The atomic add instructions modify the condition code and so need to be marked as clobbering flags. Fixes #24449. Change-Id: Ic69c8d775fbdbfb2a56c5e0cfca7a49c0d7f6897 Reviewed-on: https://go-review.googlesource.com/101455 Run-TryBot: Michael Munday <mike.munday@ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
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Fangming.Fang authored
This change fixes index error when encoding VMOV instruction which pattern is vmov Vn.<T>[index], Vd.<T>[index] Change-Id: I949166e6dfd63fb0a9365f183b6c50d452614f9d Reviewed-on: https://go-review.googlesource.com/101335Reviewed-by:
Cherry Zhang <cherryyz@google.com>
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Fangming.Fang authored
This change fixes index error when encoding VMOV instruction which pattern is VMOV Rn, V.<T>[index]. For example VMOV R1, V1.S[1] is assembled as VMOV R1, V1.S[0] Fixes #24400 Change-Id: I82b5edc8af4e06862bc4692b119697c6bb7dc3fb Reviewed-on: https://go-review.googlesource.com/101297Reviewed-by:
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Vladimir Kuzmin authored
Currently rvalue m[k] is transformed during walk into: tmp1 := *mapaccess(m, k) tmp2 := append(tmp1, ...) *mapassign(m, k) = tmp2 However, this is suboptimal, as we could instead produce just: tmp := mapassign(m, k) *tmp := append(*tmp, ...) Optimization is possible only if during Order it may tell that m[k] is exactly the same at left and right part of assignment. It doesn't work: 1) m[f(k)] = append(m[f(k)], ...) 2) sink, m[k] = sink, append(m[k]...) 3) m[k] = append(..., m[k],...) Benchmark: name old time/op new time/op delta MapAppendAssign/Int32/256-8 33.5ns ± 3% 22.4ns ±10% -33.24% (p=0.000 n=16+18) MapAppendAssign/Int32/65536-8 68.2ns ± 6% 48.5ns ±29% -28.90% (p=0.000 n=20+20) MapAppendAssign/Int64/256-8 34.3ns ± 4% 23.3ns ± 5% -32.23% (p=0.000 n=17+18) MapAppendAssign/Int64/65536-8 65.9ns ± 7% 61.2ns ±19% -7.06% (p=0.002 n=18+20) MapAppendAssign/Str/256-8 116ns ±12% 79ns ±16% -31.70% (p=0.000 n=20+19) MapAppendAssign/Str/65536-8 134ns ±15% 111ns ±45% -16.95% (p=0.000 n=19+20) name old alloc/op new alloc/op delta MapAppendAssign/Int32/256-8 47.0B ± 0% 46.0B ± 0% -2.13% (p=0.000 n=19+18) MapAppendAssign/Int32/65536-8 27.0B ± 0% 20.7B ±30% -23.33% (p=0.000 n=20+20) MapAppendAssign/Int64/256-8 47.0B ± 0% 46.0B ± 0% -2.13% (p=0.000 n=20+17) MapAppendAssign/Int64/65536-8 27.0B ± 0% 27.0B ± 0% ~ (all equal) MapAppendAssign/Str/256-8 94.0B ± 0% 78.0B ± 0% -17.02% (p=0.000 n=20+16) MapAppendAssign/Str/65536-8 54.0B ± 0% 54.0B ± 0% ~ (all equal) Fixes #24364 Updates #5147 Change-Id: Id257d052b75b9a445b4885dc571bf06ce6f6b409 Reviewed-on: https://go-review.googlesource.com/100838Reviewed-by:Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Cherry Zhang authored
This reverts commit bfa8b6f8. Reason for revert: This depends on another CL which is not yet submitted. Change-Id: I50e7594f1473c911a2079fe910849a6694ac6c07 Reviewed-on: https://go-review.googlesource.com/101496Reviewed-by:
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fanzha02 authored
Use LDP instructions to load 16 bytes per loop when the source length is long. Specially process the 8 bytes length, 4 bytes length and 2 bytes length to get a better performance. Benchmark result: name old time/op new time/op delta BytesCompare/1-8 21.0ns ± 0% 10.5ns ± 0% ~ (p=0.079 n=4+5) BytesCompare/2-8 11.5ns ± 0% 10.5ns ± 0% -8.70% (p=0.008 n=5+5) BytesCompare/4-8 13.5ns ± 0% 10.0ns ± 0% -25.93% (p=0.008 n=5+5) BytesCompare/8-8 28.8ns ± 0% 9.5ns ± 0% ~ (p=0.079 n=4+5) BytesCompare/16-8 40.5ns ± 0% 10.5ns ± 0% -74.07% (p=0.008 n=5+5) BytesCompare/32-8 64.6ns ± 0% 12.5ns ± 0% -80.65% (p=0.008 n=5+5) BytesCompare/64-8 112ns ± 0% 16ns ± 0% -85.27% (p=0.008 n=5+5) BytesCompare/128-8 208ns ± 0% 24ns ± 0% -88.22% (p=0.008 n=5+5) BytesCompare/256-8 400ns ± 0% 50ns ± 0% -87.62% (p=0.008 n=5+5) BytesCompare/512-8 785ns ± 0% 82ns ± 0% -89.61% (p=0.008 n=5+5) BytesCompare/1024-8 1.55µs ± 0% 0.14µs ± 0% ~ (p=0.079 n=4+5) BytesCompare/2048-8 3.09µs ± 0% 0.27µs ± 0% ~ (p=0.079 n=4+5) CompareBytesEqual-8 39.0ns ± 0% 12.0ns ± 0% -69.23% (p=0.008 n=5+5) CompareBytesToNil-8 8.57ns ± 5% 8.23ns ± 2% -3.99% (p=0.016 n=5+5) CompareBytesEmpty-8 7.37ns ± 0% 7.36ns ± 4% ~ (p=0.690 n=5+5) CompareBytesIdentical-8 7.39ns ± 0% 7.46ns ± 2% ~ (p=0.667 n=5+5) CompareBytesSameLength-8 17.0ns ± 0% 10.5ns ± 0% -38.24% (p=0.008 n=5+5) CompareBytesDifferentLength-8 17.0ns ± 0% 10.5ns ± 0% -38.24% (p=0.008 n=5+5) CompareBytesBigUnaligned-8 1.58ms ± 0% 0.19ms ± 0% -88.31% (p=0.016 n=4+5) CompareBytesBig-8 1.59ms ± 0% 0.19ms ± 0% -88.27% (p=0.016 n=5+4) CompareBytesBigIdentical-8 7.01ns ± 0% 6.60ns ± 3% -5.91% (p=0.008 n=5+5) name old speed new speed delta CompareBytesBigUnaligned-8 662MB/s ± 0% 5660MB/s ± 0% +755.15% (p=0.016 n=4+5) CompareBytesBig-8 661MB/s ± 0% 5636MB/s ± 0% +752.57% (p=0.016 n=5+4) CompareBytesBigIdentical-8 150TB/s ± 0% 159TB/s ± 3% +6.27% (p=0.008 n=5+5) Change-Id: I70332de06f873df3bc12c4a5af1028307b670046 Reviewed-on: https://go-review.googlesource.com/90175Reviewed-by:
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- 19 Mar, 2018 11 commits
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fanzha02 authored
Current ARM64 assembler has no check for the invalid value of both shift amount and post-index immediate offset of LD1/ST1. This patch adds the check. This patch also fixes the printing error of register number equals to 31, which should be printed as ZR instead of R31. Test cases are also added. Change-Id: I476235f3ab3a3fc91fe89c5a3149a4d4529c05c7 Reviewed-on: https://go-review.googlesource.com/100255Reviewed-by:
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Andrew Bonventre authored
This reverts commit 4b06d9d7. Reason for revert: It's a reference to a legendary article from the Journal of Irreproducible Results. Updates golang/go#24451 Change-Id: I0288177f4e286bd6ace5774f2e5e0acb02370305 Reviewed-on: https://go-review.googlesource.com/101495Reviewed-by:
Andrew Bonventre <andybons@golang.org>
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Vlad Krasnov authored
Instead shifting the accumulator every iteration of the loop, shift once in the end. This significantly improves performance on arm64. On arm64: name old time/op new time/op delta RSA2048Decrypt 3.33ms ± 0% 2.63ms ± 0% -20.94% (p=0.000 n=11+11) RSA2048Sign 4.22ms ± 0% 3.55ms ± 0% -15.89% (p=0.000 n=11+11) 3PrimeRSA2048Decrypt 1.95ms ± 0% 1.59ms ± 0% -18.59% (p=0.000 n=11+11) On Skylake: name old time/op new time/op delta RSA2048Decrypt-8 1.73ms ± 2% 1.55ms ± 2% -10.19% (p=0.000 n=10+10) RSA2048Sign-8 2.17ms ± 2% 2.00ms ± 2% -7.93% (p=0.000 n=10+10) 3PrimeRSA2048Decrypt-8 1.10ms ± 2% 0.96ms ± 2% -13.03% (p=0.000 n=10+9) Change-Id: I5786191a1a09e4217fdb1acfd90880d35c5855f7 Reviewed-on: https://go-review.googlesource.com/99838 Run-TryBot: Vlad Krasnov <vlad@cloudflare.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Adam Langley <agl@golang.org> Reviewed-by:
Robert Griesemer <gri@golang.org>
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jimmyfrasche authored
Updates #24352. Change-Id: Ie7c1de905154a483b7f7748de28e35b484cce6ea Reviewed-on: https://go-review.googlesource.com/101279Reviewed-by:
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Andrew Bonventre authored
Fixes golang/go#24451 Change-Id: Id9b4cbd1a1ff032f1cc4606e9734ddcc64892ae5 Reviewed-on: https://go-review.googlesource.com/101457Reviewed-by:
Filippo Valsorda <filippo@golang.org>
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Alberto Donizetti authored
One could expect calls like z.mant.shl(z.mant, shiftAmount) (or higher-level-functions calls that use lhs/rhs) to be almost free when shiftAmount = 0; and expect calls like z.mant.shl(x.mant, 0) to have the same cost of a x.mant -> z.mant copy. Neither of this things are currently true. For an 800 words nat, the first kind of calls cost ~800ns for rigth shifts and ~3.5µs for left shift; while the second kind of calls are doing more work than necessary by calling shlVU/shrVU. This change makes the first kind of calls ({Shl,Shr}Same) almost free, and the second kind of calls ({Shl,Shr}) about 30% faster. name old time/op new time/op delta ZeroShifts/Shl-4 3.64µs ± 3% 2.49µs ± 1% -31.55% (p=0.000 n=10+10) ZeroShifts/ShlSame-4 3.65µs ± 1% 0.01µs ± 1% -99.85% (p=0.000 n=9+9) ZeroShifts/Shr-4 3.65µs ± 1% 2.49µs ± 1% -31.91% (p=0.000 n=10+10) ZeroShifts/ShrSame-4 825ns ± 0% 6ns ± 1% -99.33% (p=0.000 n=9+10) During go test math/big, the shl zeroshift fastpath is triggered 1380 times; while the shr fastpath is triggered 153334 times(!). Change-Id: I5f92b304a40638bd8453a86c87c58e54b337bcdf Reviewed-on: https://go-review.googlesource.com/87660 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: -
jimmyfrasche authored
Per #11257 all examples should be in external test files. Additionally, doing so makes this example playable. Updates #24352. (Albeit tangentially). Change-Id: I77ab4655107f61db2e9d21a608b73ace3a230fb2 Reviewed-on: https://go-review.googlesource.com/101285Reviewed-by:
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Brad Fitzpatrick authored
Add accessors that handle nil without crashing. Fixes #24330 Change-Id: If5fbbb6015ca8d65f620a06bad6e52de8cd896ad Reviewed-on: https://go-review.googlesource.com/101315 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Emmanuel Odeke <emm.odeke@gmail.com>
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Alberto Donizetti authored
And delete them from asm_test. Change-Id: I3cf0934706a640136cb0f646509174f8c1bf3363 Reviewed-on: https://go-review.googlesource.com/101395 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Giovanni Bajo <rasky@develer.com>
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Neven Sajko authored
Change-Id: If9ad8ae663f007efe43cc35631713565fa754e93 Reviewed-on: https://go-review.googlesource.com/93237 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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quasilyte authored
Replaces " \t" code indentation with "\t". Issues like this are easy to spot with editor that prints whitespace charecters. Change-Id: Ia82877e7c99121bf369fa76e46ba52dff84f36bf Reviewed-on: https://go-review.googlesource.com/101355Reviewed-by:
Daniel Martí <mvdan@mvdan.cc> Reviewed-by:
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- 18 Mar, 2018 2 commits
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Alberto Donizetti authored
And delete them from asm_test. Change-Id: Ia286239a3d8f3915f2ca25dbcb39f3354a4f8aea Reviewed-on: https://go-review.googlesource.com/101138 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Ian Gudger authored
Updates to x/net git rev 24dd378 for CL 100055 Fixes #10622 Updates #16218 Change-Id: I99e26da7b908b36585a0379d9381030c01819b54 Reviewed-on: https://go-review.googlesource.com/101278 Run-TryBot: Ian Gudger <igudger@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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- 17 Mar, 2018 1 commit
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Ian Lance Taylor authored
Fixes #24425 Change-Id: I2aacbced8cd14da67fe9a4cbd62b434c18b5fce2 Reviewed-on: https://go-review.googlesource.com/101215 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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- 16 Mar, 2018 4 commits
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Daniel Martí authored
Change-Id: I441b3045e76afc1c561914926c14efc8a116c8a7 Reviewed-on: https://go-review.googlesource.com/101195 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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David Chase authored
This revives Alessandro Arzilli's CL to enable scopes whenever any dwarf is emitted (with optimization or not), adds a test that detects this changes and shows that it creates more truthful debugging output. Reverted change to ssa/debug_test tests made when scopes were disabled during dwarflocationlist development. Also included are updates to the Delve test output (it had fallen out of sync; creating test output for one updates it for all) and minor naming changes in ssa/debug_test. Compile-time/space changes (relative to tip including dwarflocationlists): benchstat -geomean after.log scopes.log name old time/op new time/op delta Template 182ms ± 1% 182ms ± 1% ~ (p=0.666 n=9+9) Unicode 82.8ms ± 1% 86.6ms ±14% ~ (p=0.211 n=9+10) GoTypes 611ms ± 1% 616ms ± 2% +0.97% (p=0.001 n=10+9) Compiler 2.95s ± 1% 2.95s ± 0% ~ (p=0.573 n=10+8) SSA 6.70s ± 1% 6.81s ± 1% +1.68% (p=0.000 n=9+10) Flate 117ms ± 1% 118ms ± 1% +0.60% (p=0.036 n=9+8) GoParser 145ms ± 1% 145ms ± 1% ~ (p=1.000 n=9+9) Reflect 398ms ± 1% 396ms ± 1% ~ (p=0.053 n=9+10) Tar 171ms ± 1% 171ms ± 1% ~ (p=0.356 n=9+10) XML 214ms ± 1% 214ms ± 1% ~ (p=0.605 n=9+9) StdCmd 12.4s ± 2% 12.4s ± 1% ~ (p=1.000 n=9+9) [Geo mean] 506ms 509ms +0.71% name old user-ns/op new user-ns/op delta Template 254M ± 4% 249M ± 6% ~ (p=0.155 n=10+10) Unicode 121M ±11% 124M ± 6% ~ (p=0.516 n=10+10) GoTypes 824M ± 2% 869M ± 5% +5.49% (p=0.001 n=8+10) Compiler 4.01G ± 2% 4.02G ± 1% ~ (p=0.561 n=9+9) SSA 10.0G ± 2% 10.2G ± 2% +2.29% (p=0.000 n=9+10) Flate 154M ± 7% 154M ± 7% ~ (p=0.960 n=10+9) GoParser 190M ± 7% 196M ± 6% ~ (p=0.064 n=9+10) Reflect 528M ± 2% 517M ± 3% -1.97% (p=0.025 n=10+10) Tar 227M ± 5% 232M ± 3% ~ (p=0.061 n=9+10) XML 286M ± 4% 283M ± 4% ~ (p=0.343 n=9+9) [Geo mean] 502M 508M +1.09% name old text-bytes new text-bytes delta HelloSize 672k ± 0% 672k ± 0% +0.01% (p=0.000 n=10+10) CmdGoSize 7.21M ± 0% 7.21M ± 0% -0.00% (p=0.000 n=10+10) [Geo mean] 2.20M 2.20M +0.00% name old data-bytes new data-bytes delta HelloSize 9.88k ± 0% 9.88k ± 0% ~ (all equal) CmdGoSize 248k ± 0% 248k ± 0% ~ (all equal) [Geo mean] 49.5k 49.5k +0.00% name old bss-bytes new bss-bytes delta HelloSize 125k ± 0% 125k ± 0% ~ (all equal) CmdGoSize 144k ± 0% 144k ± 0% -0.04% (p=0.000 n=10+10) [Geo mean] 135k 135k -0.02% name old exe-bytes new exe-bytes delta HelloSize 1.30M ± 0% 1.34M ± 0% +3.15% (p=0.000 n=10+10) CmdGoSize 13.5M ± 0% 13.9M ± 0% +2.70% (p=0.000 n=10+10) [Geo mean] 4.19M 4.31M +2.92% Change-Id: Id53b8d57bd00440142ccbd39b95710e14e083fb5 Reviewed-on: https://go-review.googlesource.com/101217Reviewed-by:
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Ian Lance Taylor authored
Updates #8602 Updates #20703 Fixes #22724 Change-Id: I27b72311b2c66148c59977361bd3f5101e47b51d Reviewed-on: https://go-review.googlesource.com/100840 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Brad Fitzpatrick authored
Fixes #24393 Change-Id: I8bcee34cdf30472663d866ed6056301d8445215c Reviewed-on: https://go-review.googlesource.com/100875 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Ian Lance Taylor <iant@golang.org>
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- 15 Mar, 2018 15 commits
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Matthew Dempsky authored
By moving exported methods to the front of method lists, filtering down to only the exported methods just needs a count of how many exported methods exist, which the compiler can statically provide. This allows getting rid of the exported method cache. For #22075. Change-Id: I8eeb274563a2940e1347c34d673f843ae2569064 Reviewed-on: https://go-review.googlesource.com/100846Reviewed-by:
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Matthew Dempsky authored
By sorting method sets earlier, we can change the interface satisfaction problem from taking O(NM) time to O(N+M). This is the same algorithm already used by runtime and reflect for dynamic interface satisfaction testing. For #22075. Change-Id: I3d889f0227f37704535739bbde11f5107b4eea17 Reviewed-on: https://go-review.googlesource.com/100845 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Adam Shannon authored
Fixes #24413. Change-Id: I265088c9ddc624cb3b3132087cc3d4baf95d2777 Reviewed-on: https://go-review.googlesource.com/100839Reviewed-by:
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David Chase authored
This changes the default setting for -dwarflocationlists from false to true, removes the flag from ssa/debug_test.go, and updates runtime/runtime-gdb_test.go to match a change in debugging output for composite variables. Current benchmarks (perflock, -count 10) benchstat -geomean before.log after.log name old time/op new time/op delta Template 175ms ± 0% 182ms ± 1% +3.68% (p=0.000 n=8+9) Unicode 82.0ms ± 2% 82.8ms ± 1% +0.96% (p=0.019 n=9+9) GoTypes 590ms ± 1% 611ms ± 1% +3.42% (p=0.000 n=9+10) Compiler 2.85s ± 0% 2.95s ± 1% +3.60% (p=0.000 n=9+10) SSA 6.42s ± 1% 6.70s ± 1% +4.31% (p=0.000 n=10+9) Flate 113ms ± 2% 117ms ± 1% +3.11% (p=0.000 n=10+9) GoParser 140ms ± 1% 145ms ± 1% +3.47% (p=0.000 n=10+9) Reflect 384ms ± 0% 398ms ± 1% +3.56% (p=0.000 n=8+9) Tar 165ms ± 1% 171ms ± 1% +3.33% (p=0.000 n=9+9) XML 207ms ± 2% 214ms ± 1% +3.41% (p=0.000 n=9+9) StdCmd 11.8s ± 2% 12.4s ± 2% +4.41% (p=0.000 n=10+9) [Geo mean] 489ms 506ms +3.38% name old user-ns/op new user-ns/op delta Template 247M ± 4% 254M ± 4% +2.76% (p=0.040 n=10+10) Unicode 118M ±16% 121M ±11% ~ (p=0.364 n=10+10) GoTypes 805M ± 2% 824M ± 2% +2.37% (p=0.003 n=9+8) Compiler 3.92G ± 2% 4.01G ± 2% +2.20% (p=0.001 n=9+9) SSA 9.63G ± 4% 10.00G ± 2% +3.81% (p=0.000 n=10+9) Flate 155M ±10% 154M ± 7% ~ (p=0.718 n=9+10) GoParser 184M ±11% 190M ± 7% ~ (p=0.220 n=10+9) Reflect 506M ± 4% 528M ± 2% +4.27% (p=0.000 n=10+10) Tar 224M ± 4% 227M ± 5% ~ (p=0.207 n=10+9) XML 272M ± 7% 286M ± 4% +5.23% (p=0.010 n=10+9) [Geo mean] 489M 502M +2.76% name old text-bytes new text-bytes delta HelloSize 672k ± 0% 672k ± 0% ~ (all equal) CmdGoSize 7.21M ± 0% 7.21M ± 0% ~ (all equal) [Geo mean] 2.20M 2.20M +0.00% name old data-bytes new data-bytes delta HelloSize 9.88k ± 0% 9.88k ± 0% ~ (all equal) CmdGoSize 248k ± 0% 248k ± 0% ~ (all equal) [Geo mean] 49.5k 49.5k +0.00% name old bss-bytes new bss-bytes delta HelloSize 125k ± 0% 125k ± 0% ~ (all equal) CmdGoSize 144k ± 0% 144k ± 0% ~ (all equal) [Geo mean] 135k 135k +0.00% name old exe-bytes new exe-bytes delta HelloSize 1.10M ± 0% 1.30M ± 0% +17.82% (p=0.000 n=10+10) CmdGoSize 11.6M ± 0% 13.5M ± 0% +16.90% (p=0.000 n=10+10) [Geo mean] 3.57M 4.19M +17.36% Change-Id: I250055813cadd25cebee8da1f9a7f995a6eae432 Reviewed-on: https://go-review.googlesource.com/100738Reviewed-by:
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Heschi Kreinick authored
Add a search box to the top of the user task views that only displays tasks containing a particular log message. Change-Id: I92f4aa113f930954e8811416901e37824f0eb884 Reviewed-on: https://go-review.googlesource.com/100843 Run-TryBot: Heschi Kreinick <heschi@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Hyang-Ah Hana Kim <hyangah@gmail.com>
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Hana Kim authored
Goroutine analysis reports the sum of all overlapping GC intervals as the GCTime of a goroutine. The computation is done by adding the length of a completed GC interval to 'active' goroutines when processing the corresponding EvGCDone event. This change fixes the two corner cases the current implementation ignores: 1) Goroutine that ends during GC. Previously, this goroutine was ignored and GC time was undercounted. We handle this case by setting the gcStartTime only when GC is active and handling non-zero gcStartTime when processing EvGoStop and EvGoStart. 2) Goroutine that starts during GC. Previously, the entire GC interval length was added to the Goroutine's GCTime which resulted in overcount of GC time. We handle this case by computing the length of overlapped period precisely. Change-Id: Ifa8e82672ec341b5ff87837209f4311fa7262b7f Reviewed-on: https://go-review.googlesource.com/100842Reviewed-by:
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Alberto Donizetti authored
And delete them from asm_test. Change-Id: Ibdaca3496eefc73c731b511ddb9636a1f3dff68c Reviewed-on: https://go-review.googlesource.com/100915 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Keith Randall <khr@golang.org>
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Robert Griesemer authored
Based on decision for #24183. This makes the go/scanner behavior match cmd/compile behavior. Adjusted a go/printer test that assumed silent behavior for invalid line directive, and added more scanner tests verifying the correct error position and message for invalid line directives. The filenames in line directives now remain untouched by the scanner; there is no cleanup or conversion of relative into absolute paths anymore, in sync with what the compiler's scanner/parser are doing. Any kind of filename transformation has to be done by a client. This makes the scanner code simpler and also more predictable. For #24183. Change-Id: Ia091548e1d3d89dfdf6e7d82dab50bea05742ce3 Reviewed-on: https://go-review.googlesource.com/100235 Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Keith Randall authored
When there are plugins, there may not be a unique copy of runtime functions like goexit, mcall, etc. So identifying them by entry address is problematic. Instead, keep track of each special function using a field in the symbol table. That way, multiple copies of the same runtime function will be treated identically. Fixes #24351 Fixes #23133 Change-Id: Iea3232df8a6af68509769d9ca618f530cc0f84fd Reviewed-on: https://go-review.googlesource.com/100739 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Daniel Martí authored
This is done for sparse sets already, but it was missing for sparse maps. Only affects deadstore and regalloc, as they're the only ones that use sparse maps. name old time/op new time/op delta DSEPass-4 247µs ± 0% 216µs ± 0% -12.75% (p=0.008 n=5+5) DSEPassBlock-4 3.05ms ± 1% 2.87ms ± 1% -6.02% (p=0.002 n=6+6) CSEPass-4 2.30ms ± 0% 2.32ms ± 0% +0.53% (p=0.026 n=6+6) CSEPassBlock-4 23.8ms ± 0% 23.8ms ± 0% ~ (p=0.931 n=6+5) DeadcodePass-4 51.7µs ± 1% 51.5µs ± 2% ~ (p=0.429 n=5+6) DeadcodePassBlock-4 734µs ± 1% 742µs ± 3% ~ (p=0.394 n=6+6) MultiPass-4 152µs ± 0% 149µs ± 2% ~ (p=0.082 n=5+6) MultiPassBlock-4 2.67ms ± 1% 2.41ms ± 2% -9.77% (p=0.008 n=5+5) name old alloc/op new alloc/op delta DSEPass-4 41.2kB ± 0% 0.1kB ± 0% -99.68% (p=0.002 n=6+6) DSEPassBlock-4 560kB ± 0% 4kB ± 0% -99.34% (p=0.026 n=5+6) CSEPass-4 189kB ± 0% 189kB ± 0% ~ (all equal) CSEPassBlock-4 3.10MB ± 0% 3.10MB ± 0% ~ (p=0.444 n=5+5) DeadcodePass-4 10.5kB ± 0% 10.5kB ± 0% ~ (all equal) DeadcodePassBlock-4 164kB ± 0% 164kB ± 0% ~ (all equal) MultiPass-4 240kB ± 0% 199kB ± 0% -17.06% (p=0.002 n=6+6) MultiPassBlock-4 3.60MB ± 0% 2.99MB ± 0% -17.06% (p=0.002 n=6+6) name old allocs/op new allocs/op delta DSEPass-4 8.00 ± 0% 4.00 ± 0% -50.00% (p=0.002 n=6+6) DSEPassBlock-4 240 ± 0% 120 ± 0% -50.00% (p=0.002 n=6+6) CSEPass-4 9.00 ± 0% 9.00 ± 0% ~ (all equal) CSEPassBlock-4 1.35k ± 0% 1.35k ± 0% ~ (all equal) DeadcodePass-4 3.00 ± 0% 3.00 ± 0% ~ (all equal) DeadcodePassBlock-4 9.00 ± 0% 9.00 ± 0% ~ (all equal) MultiPass-4 11.0 ± 0% 10.0 ± 0% -9.09% (p=0.002 n=6+6) MultiPassBlock-4 165 ± 0% 150 ± 0% -9.09% (p=0.002 n=6+6) Change-Id: I43860687c88f33605eb1415f36473c5cfe8fde4a Reviewed-on: https://go-review.googlesource.com/98449 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Josh Bleecher Snyder <josharian@gmail.com>
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Giovanni Bajo authored
This builds upon the branchelim pass, activating it for amd64 and lowering CondSelect. Special care is made to FPU instructions for NaN handling. Benchmark results on Xeon E5630 (Westmere EP): name old time/op new time/op delta BinaryTree17-16 4.99s ± 9% 4.66s ± 2% ~ (p=0.095 n=5+5) Fannkuch11-16 4.93s ± 3% 5.04s ± 2% ~ (p=0.548 n=5+5) FmtFprintfEmpty-16 58.8ns ± 7% 61.4ns ±14% ~ (p=0.579 n=5+5) FmtFprintfString-16 114ns ± 2% 114ns ± 4% ~ (p=0.603 n=5+5) FmtFprintfInt-16 181ns ± 4% 125ns ± 3% -30.90% (p=0.008 n=5+5) FmtFprintfIntInt-16 263ns ± 2% 217ns ± 2% -17.34% (p=0.008 n=5+5) FmtFprintfPrefixedInt-16 230ns ± 1% 212ns ± 1% -7.99% (p=0.008 n=5+5) FmtFprintfFloat-16 411ns ± 3% 344ns ± 5% -16.43% (p=0.008 n=5+5) FmtManyArgs-16 828ns ± 4% 790ns ± 2% -4.59% (p=0.032 n=5+5) GobDecode-16 10.9ms ± 4% 10.8ms ± 5% ~ (p=0.548 n=5+5) GobEncode-16 9.52ms ± 5% 9.46ms ± 2% ~ (p=1.000 n=5+5) Gzip-16 334ms ± 2% 337ms ± 2% ~ (p=0.548 n=5+5) Gunzip-16 64.4ms ± 1% 65.0ms ± 1% +1.00% (p=0.008 n=5+5) HTTPClientServer-16 156µs ± 3% 155µs ± 3% ~ (p=0.690 n=5+5) JSONEncode-16 21.0ms ± 1% 21.8ms ± 0% +3.76% (p=0.016 n=5+4) JSONDecode-16 95.1ms ± 0% 95.7ms ± 1% ~ (p=0.151 n=5+5) Mandelbrot200-16 6.38ms ± 1% 6.42ms ± 1% ~ (p=0.095 n=5+5) GoParse-16 5.47ms ± 2% 5.36ms ± 1% -1.95% (p=0.016 n=5+5) RegexpMatchEasy0_32-16 111ns ± 1% 111ns ± 1% ~ (p=0.635 n=5+4) RegexpMatchEasy0_1K-16 408ns ± 1% 411ns ± 2% ~ (p=0.087 n=5+5) RegexpMatchEasy1_32-16 103ns ± 1% 104ns ± 1% ~ (p=0.484 n=5+5) RegexpMatchEasy1_1K-16 659ns ± 2% 652ns ± 1% ~ (p=0.571 n=5+5) RegexpMatchMedium_32-16 176ns ± 2% 174ns ± 1% ~ (p=0.476 n=5+5) RegexpMatchMedium_1K-16 58.6µs ± 4% 57.7µs ± 4% ~ (p=0.548 n=5+5) RegexpMatchHard_32-16 3.07µs ± 3% 3.04µs ± 4% ~ (p=0.421 n=5+5) RegexpMatchHard_1K-16 89.2µs ± 1% 87.9µs ± 2% -1.52% (p=0.032 n=5+5) Revcomp-16 575ms ± 0% 587ms ± 2% +2.12% (p=0.032 n=4+5) Template-16 110ms ± 1% 107ms ± 3% -3.00% (p=0.032 n=5+5) TimeParse-16 463ns ± 0% 462ns ± 0% ~ (p=0.810 n=5+4) TimeFormat-16 538ns ± 0% 535ns ± 0% -0.63% (p=0.024 n=5+5) name old speed new speed delta GobDecode-16 70.7MB/s ± 4% 71.4MB/s ± 5% ~ (p=0.452 n=5+5) GobEncode-16 80.7MB/s ± 5% 81.2MB/s ± 2% ~ (p=1.000 n=5+5) Gzip-16 58.2MB/s ± 2% 57.7MB/s ± 2% ~ (p=0.452 n=5+5) Gunzip-16 302MB/s ± 1% 299MB/s ± 1% -0.99% (p=0.008 n=5+5) JSONEncode-16 92.4MB/s ± 1% 89.1MB/s ± 0% -3.63% (p=0.016 n=5+4) JSONDecode-16 20.4MB/s ± 0% 20.3MB/s ± 1% ~ (p=0.135 n=5+5) GoParse-16 10.6MB/s ± 2% 10.8MB/s ± 1% +2.00% (p=0.016 n=5+5) RegexpMatchEasy0_32-16 286MB/s ± 1% 285MB/s ± 3% ~ (p=1.000 n=5+5) RegexpMatchEasy0_1K-16 2.51GB/s ± 1% 2.49GB/s ± 2% ~ (p=0.095 n=5+5) RegexpMatchEasy1_32-16 309MB/s ± 1% 307MB/s ± 1% ~ (p=0.548 n=5+5) RegexpMatchEasy1_1K-16 1.55GB/s ± 2% 1.57GB/s ± 1% ~ (p=0.690 n=5+5) RegexpMatchMedium_32-16 5.68MB/s ± 2% 5.73MB/s ± 1% ~ (p=0.579 n=5+5) RegexpMatchMedium_1K-16 17.5MB/s ± 4% 17.8MB/s ± 4% ~ (p=0.500 n=5+5) RegexpMatchHard_32-16 10.4MB/s ± 3% 10.5MB/s ± 4% ~ (p=0.460 n=5+5) RegexpMatchHard_1K-16 11.5MB/s ± 1% 11.7MB/s ± 2% +1.57% (p=0.032 n=5+5) Revcomp-16 442MB/s ± 0% 433MB/s ± 2% -2.05% (p=0.032 n=4+5) Template-16 17.7MB/s ± 1% 18.2MB/s ± 3% +3.12% (p=0.032 n=5+5) Change-Id: I6972e8f35f2b31f9a42ac473a6bf419a18022558 Reviewed-on: https://go-review.googlesource.com/100935 Run-TryBot: Giovanni Bajo <rasky@develer.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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James Cowgill authored
There is a bug in Octeon III processors where storing an odd floating point register after it has recently been written to by a double floating point operation will store the old value from before the double operation (there are some extra details - the operation and store must be a certain number of cycles apart). However, this bug does not occur if the even register is stored first. Currently the bug only happens on big endian because go always loads the even register first on little endian. Workaround the bug by always loading / storing the even floating point register first. Since this is just an instruction reordering, it should have no performance penalty. This follows other compilers like GCC which will always store the even register first (although you do have to set the ISA level to MIPS I to prevent it from using SDC1). Change-Id: I5e73daa4d724ca1df7bf5228aab19f53f26a4976 Reviewed-on: https://go-review.googlesource.com/97735Reviewed-by:
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Geoff Berry authored
Add patterns to match common idioms for EXTR, BFI, BFXIL, SBFIZ, SBFX, UBFIZ and UBFX opcodes. go1 benchmarks results on Amberwing: name old time/op new time/op delta FmtManyArgs 786ns ± 2% 714ns ± 1% -9.20% (p=0.000 n=10+10) Gzip 437ms ± 0% 402ms ± 0% -7.99% (p=0.000 n=10+10) FmtFprintfIntInt 196ns ± 0% 182ns ± 0% -7.28% (p=0.000 n=10+9) FmtFprintfPrefixedInt 207ns ± 0% 199ns ± 0% -3.86% (p=0.000 n=10+10) FmtFprintfFloat 324ns ± 0% 316ns ± 0% -2.47% (p=0.000 n=10+8) FmtFprintfInt 119ns ± 0% 117ns ± 0% -1.68% (p=0.000 n=10+9) GobDecode 12.8ms ± 2% 12.6ms ± 1% -1.62% (p=0.002 n=10+10) JSONDecode 94.4ms ± 1% 93.4ms ± 0% -1.10% (p=0.000 n=10+10) RegexpMatchEasy0_32 247ns ± 0% 245ns ± 0% -0.65% (p=0.000 n=10+10) RegexpMatchMedium_32 314ns ± 0% 312ns ± 0% -0.64% (p=0.000 n=10+10) RegexpMatchEasy0_1K 541ns ± 0% 538ns ± 0% -0.55% (p=0.000 n=10+9) TimeParse 450ns ± 1% 448ns ± 1% -0.42% (p=0.035 n=9+9) RegexpMatchEasy1_32 244ns ± 0% 243ns ± 0% -0.41% (p=0.000 n=10+10) GoParse 6.03ms ± 0% 6.00ms ± 0% -0.40% (p=0.002 n=10+10) RegexpMatchEasy1_1K 779ns ± 0% 777ns ± 0% -0.26% (p=0.000 n=10+10) RegexpMatchHard_32 2.75µs ± 0% 2.74µs ± 1% -0.06% (p=0.026 n=9+9) BinaryTree17 11.7s ± 0% 11.6s ± 0% ~ (p=0.089 n=10+10) HTTPClientServer 89.1µs ± 1% 89.5µs ± 2% ~ (p=0.436 n=10+10) RegexpMatchHard_1K 78.9µs ± 0% 79.5µs ± 2% ~ (p=0.469 n=10+10) FmtFprintfEmpty 58.5ns ± 0% 58.5ns ± 0% ~ (all equal) GobEncode 12.0ms ± 1% 12.1ms ± 0% ~ (p=0.075 n=10+10) Revcomp 669ms ± 0% 668ms ± 0% ~ (p=0.091 n=7+9) Mandelbrot200 5.35ms ± 0% 5.36ms ± 0% +0.07% (p=0.000 n=9+9) RegexpMatchMedium_1K 52.1µs ± 0% 52.1µs ± 0% +0.10% (p=0.000 n=9+9) Fannkuch11 3.25s ± 0% 3.26s ± 0% +0.36% (p=0.000 n=9+10) FmtFprintfString 114ns ± 1% 115ns ± 0% +0.52% (p=0.011 n=10+10) JSONEncode 20.2ms ± 0% 20.3ms ± 0% +0.65% (p=0.000 n=10+10) Template 91.3ms ± 0% 92.3ms ± 0% +1.08% (p=0.000 n=10+10) TimeFormat 484ns ± 0% 495ns ± 1% +2.30% (p=0.000 n=9+10) There are some opportunities to improve this change further by adding patterns to match the "extended register" versions of ADD/SUB/CMP, but I think that should be evaluated on its own. The regressions in Template and TimeFormat would likely be recovered by this, as they seem to be due to generating: ubfiz x0, x0, #3, #8 add x1, x2, x0 instead of add x1, x2, x0, lsl #3 Change-Id: I5644a8d70ac7a98e784a377a2b76ab47a3415a4b Reviewed-on: https://go-review.googlesource.com/88355Reviewed-by: -
Alberto Donizetti authored
And delete them from asm_test. Change-Id: I29c8d098a8893e6b669b6272a2f508985ac9d618 Reviewed-on: https://go-review.googlesource.com/100876Reviewed-by:
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Tobias Klauser authored
The Android O seccomp policy disallows the stat syscall on amd64, see https://android.googlesource.com/platform/bionic/+/android-4.2.2_r1.2/libc/SYSCALLS.TXT Use the fstatat syscall with AT_FDCWD and zero flags instead to achieve the same behavior. Fixes #24403 Change-Id: I36fc9ec9bc938cd8e9de30f66c0eb9d2e24debf6 Reviewed-on: https://go-review.googlesource.com/100878 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by:
Elias Naur <elias.naur@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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