- 11 Apr, 2018 11 commits
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Benny Siegert authored
TestServerDuplicateBackgroundRead has been causing crashes on the netbsd-arm-bsiegert builder, with the system becoming completely unresponsive (probably deadlocked). Skip this test while the crash is under investigation. Upstream bug report is http://gnats.netbsd.org/53173. Change-Id: Ib48f19005cf2cbba8a27e75e689c2acb025d8870 Reviewed-on: https://go-review.googlesource.com/106295 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Tobias Klauser <tobias.klauser@gmail.com>
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Alberto Donizetti authored
And delete them from asm_test. Also delete an arm64 cmov test has been already ported to the new test harness. Change-Id: I4458721e1f512bc9ecbbe1c22a2c9c7109ad68fe Reviewed-on: https://go-review.googlesource.com/106335 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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Ben Shi authored
SWPD/SWPW/SWPH/SWPB were introduced in ARMv8.1. They swap content of register and memory atomically. And their difference is SWPD: 64-bit double word data SWPW: 32-bit word data (zero extended to 64-bit) SWPH: 16-bit half word data (zero extended to 64-bit) SWPB: 8-bit byte data (zero extended to 64-bit) This CL implements them in the arm64 assembler. Change-Id: I2d9fb2310674bd92693531210e187143e7eed602 Reviewed-on: https://go-review.googlesource.com/101516Reviewed-by:
Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Tobias Klauser authored
In #17528 it was discussed (off-topic to the actual issue) to reserve GOARCH names for the RISC-V architecture. With the first RISC-V Linux-capable development boards released (e.g. HiFive Unleashed), Linux distributions being ported to RISC-V (e.g. Debian, Fedora) and RISC-V support being added to gccgo (CL 96377), it becomes more likely that Go software (and maybe Go itself) will be ported as well. Add riscv and riscv64 (which is already used by gccgo), so Go 1.11 will already recognize "*_riscv{,64}.go" as reserved files. Change-Id: I042aab19c68751d82ea513e40f7b1d7e1ad924ea Reviewed-on: https://go-review.googlesource.com/106256 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:Ian Lance Taylor <iant@golang.org>
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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) This is resubmit of CL90175. Change-Id: Ie841daedb3123a68dd2554f27ebef0b3f8a855c2 Reviewed-on: https://go-review.googlesource.com/101635 Run-TryBot: Cherry Zhang <cherryyz@google.com> Reviewed-by:
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fanzha02 authored
The patch adds support for arm64 instructions LDRB, LDRH, LDRSB, LDRSH, LDRSW, STR, STRB and STRH with register offset. Test cases are also added. Change-Id: I8d17fddd2963c0bc366e12b00bac49b93f3f0957 Reviewed-on: https://go-review.googlesource.com/91575Reviewed-by:
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Tobias Klauser authored
After CL 104636 cpu.X86.HasAVX is set early enough that it can be used to determine useAVXmemmove. Use it and remove support_avx. Change-Id: Ib7a627bede2bf96c92362507e742bd833cb42a74 Reviewed-on: https://go-review.googlesource.com/106235 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Alberto Donizetti authored
Also, make the variables list sorted. Fixes #24794 Change-Id: I55f77004b00391875d26df8e55e54d79cef168dc Reviewed-on: https://go-review.googlesource.com/106255Reviewed-by:
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Rob Pike authored
Point out that one can just run the commands now; it's not necessary to log out first. Change-Id: I48d0cc0273d97ba54ce59b3a3bbcae0b5af9aaef Reviewed-on: https://go-review.googlesource.com/106195Reviewed-by:
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Jeremy Schlatter authored
This is the standard that gofmt uses. Change-Id: I30e70611ccd0d3bbaa500fa84e9d1ba75970f0bc GitHub-Last-Rev: b2b7af0df9759ad447b6fd3551ea356804d136b2 GitHub-Pull-Request: golang/go#24802 Reviewed-on: https://go-review.googlesource.com/106123Reviewed-by:
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Keith Randall authored
Fixes #23617 Note that this CL does not affect darwin/arm and darwin/arm64, still TBD what, if anything, needs to be done for those. This is a fix of CL 105975 which was reverted in CL 106155. Needed to use movl instead of movq for 386. Change-Id: I0db7f8087173869e60cc22c6c3124fa0a0739b46 Reviewed-on: https://go-review.googlesource.com/106156 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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- 10 Apr, 2018 23 commits
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Robert Griesemer authored
Fixes #14321. Change-Id: I9c92c767b01cf7938c4808a8fef9f2936fc667bc Reviewed-on: https://go-review.googlesource.com/106119Reviewed-by:
Matthew Dempsky <mdempsky@google.com>
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Matthew Dempsky authored
The check was previously disallowing package main from even importing a non-function symbol named "main". Fixes #24801. Change-Id: I849b9713890429f0a16860ef16b5dc7e970d04a4 Reviewed-on: https://go-review.googlesource.com/106120 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Robert Griesemer <gri@golang.org>
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Matthew Dempsky authored
We'll always generate method expression wrappers for declared interface types in their own package, so no need to generate them in downstream packages. Noticed by gri@ while looking into #21282. Change-Id: I4fb7051b4e15297933da05fdd2b111d6b8f4178e Reviewed-on: https://go-review.googlesource.com/106175 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by:
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Agniva De Sarker authored
Previously, we used to associate a function with its first returned type assuming that it is a factory function for that type. However, a function may return multiple types in which case it is usually doing something else. Check for multiple return types, and treat it as a normal function in that case. Maintain same behavior if the function returns just one type. Fixes #12839 Change-Id: Ic4ac11d322996f216f593b71f4e61ad4270d5213 Reviewed-on: https://go-review.googlesource.com/105575Reviewed-by:
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Hana Kim authored
/spanio, /spanblock, /spansched, /spansyscall provide the pprof-style summary of span execution's io, block, scheduling, syscall latency distributions respectively. The computation logic for /io, /block, /sched, /syscall analysis was refactored and extended for reuse in these new types of analysis. Upon the analysis query, we create a map of goroutine id to time intervals based on the query parameter, that represents the interesting time intervals of matching goroutines. Only the events from the matching goroutines that fall into the intervals are considered in the pprof computation. The new endpoints are not yet hooked into other span analysis page (e.g. /userspan) yet. Change-Id: I80c3396e45a2d6631758710de67d132e5832c7ce Reviewed-on: https://go-review.googlesource.com/105822Reviewed-by:
Heschi Kreinick <heschi@google.com> Run-TryBot: Heschi Kreinick <heschi@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Keith Randall authored
This reverts commit 76e92d1c. Reason for revert: Seems to have broken the darwin/386 builder, the toolchain is barfing on the new inline assembly. Change-Id: Ic83fa3c85148946529c5fd47d1e1669898031ace Reviewed-on: https://go-review.googlesource.com/106155Reviewed-by:
Keith Randall <khr@golang.org>
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Vlad Krasnov authored
Minor modifications to the optimized amd64 implememntation. * Reduce window size: reduces size of the lookup tables by 40% * Revised scalar inversion formula, with less operations * Field square function now uses intental loop, saving call overhead This change will serve as a basis for an arm64 implementation. Performance results on Skylake MacBook Pro: pkg:crypto/elliptic goos:darwin goarch:amd64 BaseMultP256 17.8µs ± 1% 17.5µs ± 1% -1.41% (p=0.003 n=10+10) ScalarMultP256 70.7µs ± 1% 68.9µs ± 2% -2.57% (p=0.000 n=9+9) pkg:crypto/ecdsa goos:darwin goarch:amd64 SignP256 32.7µs ± 1% 31.4µs ± 1% -3.96% (p=0.000 n=10+8) VerifyP256 95.1µs ± 1% 93.5µs ± 2% -1.73% (p=0.001 n=10+9) name old alloc/op new alloc/op delta pkg:crypto/elliptic goos:darwin goarch:amd64 BaseMultP256 288B ± 0% 288B ± 0% ~ (all equal) ScalarMultP256 256B ± 0% 256B ± 0% ~ (all equal) pkg:crypto/ecdsa goos:darwin goarch:amd64 SignP256 2.90kB ± 0% 2.90kB ± 0% ~ (all equal) VerifyP256 976B ± 0% 976B ± 0% ~ (all equal) name old allocs/op new allocs/op delta pkg:crypto/elliptic goos:darwin goarch:amd64 BaseMultP256 6.00 ± 0% 6.00 ± 0% ~ (all equal) ScalarMultP256 5.00 ± 0% 5.00 ± 0% ~ (all equal) pkg:crypto/ecdsa goos:darwin goarch:amd64 SignP256 34.0 ± 0% 34.0 ± 0% ~ (all equal) VerifyP256 17.0 ± 0% 17.0 ± 0% ~ (all equal) Change-Id: I3f0e2e197a54e7bc7916dedc5dbf085e2c4aea24 Reviewed-on: https://go-review.googlesource.com/99622Reviewed-by:
Vlad Krasnov <vlad@cloudflare.com> Reviewed-by:
Filippo Valsorda <filippo@golang.org> Run-TryBot: Vlad Krasnov <vlad@cloudflare.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Hana Kim authored
All tests involving trace collection and parsing still need handling of failures caused by #16755 (Timestamp issue) Fixes #24738 Change-Id: I6cd0f9c6f49854a22fad6fce1a00964c168aa614 Reviewed-on: https://go-review.googlesource.com/105821Reviewed-by:
Peter Weinberger <pjw@google.com>
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Mike Samuel authored
The docs for ResponseWriter.Write say // If the Header // does not contain a Content-Type line, Write adds a Content-Type set // to the result of passing the initial 512 bytes of written data to // DetectContentType. The header X-Content-Type-Options:nosniff is an explicit directive that content-type should not be sniffed. This changes the behavior of Response.WriteHeader so that, when there is an X-Content-Type-Options:nosniff header, but there is no Content-type header, the following happens: 1. A Content-type:application/octet-stream is added 2. A warning is logged via the server's logging mechanism. Previously, a content-type would have been silently added based on heuristic analysis of the first 512B which might allow a hosted GIF like http://www.thinkfu.com/blog/gifjavascript-polyglots to be categorized as JavaScript which might allow a CSP bypass, loading as a script despite `Content-Security-Policy: script-src 'self' `. ---- https://fetch.spec.whatwg.org/#x-content-type-options-header defines the X-Content-Type-Options header. ["Polyglots: Crossing Origins by Crossing Formats"](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.905.2946&rep=rep1&type=pdf) explains Polyglot attacks in more detail. Change-Id: I2c8800d2e4b4d10d9e08a0e3e5b20334a75f03c0 Reviewed-on: https://go-review.googlesource.com/89275Reviewed-by:
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Elias Naur authored
To enable the exec wrapper go_darwin_arm_exec.go to run binaries on iOS devices, the GOIOS_DEV_ID variable needs to be set to a code signing identity. The program detect.go attempts to detect suitable values for GOIOS_DEV_ID (along with GOIOS_APP_ID and GOIOS_TEAM_ID). Before this change, detect.go would use "security find-identity -p codesigning -v" to list all available identities for code signing and pick the first one with "iPhone Developer" in its name. However, that pick might be invalid since if it was replaced by an identity issued later. For example, on the mobile builder: $ security find-identity -p codesigning -v 1) 0E251DE41FE4490574E475AC320B47F58D6D3635 "lldb_codesign" 2) 0358588D07AA6A19478981BA405F40A97F95F187 "iPhone Developer: xxx@xxx (2754T98W8E)" 3) FC6D96F24A3223C98BF7A2C2C5194D82E04CD23E "iPhone Developer: xxx@xxx (2754T98W8E)" 3 valid identities found In this case, the identity 0358588D07AA6A19478981BA405F40A97F95F187 is picked by detect.go even though it has been invalidated by FC6D96F24A3223C98BF7A2C2C5194D82E04CD23E. Instead of attempting to find an identity from the "security find-identity" list, use the identity from the CommonName in the embedded certificate in the provisioning file. The CommonName only lists the identity name (iPhone Developer: xxx@xxx (2754T98W8E)), not the fingerprint (FC6D96F24A3223C98BF7A2C2C5194D82E04CD23E), but fortunately the codesign tool accepts both. Identity names may not be unique, as demonstrated by the example, but that will result in an ambiguity error at codesigning instead of a more obscure error about an invalid identity when go_darwin_arm_exec.go runs a binary. The fix is then to delete the invalid identity from the system keychain. While here, find all connected devices instead of the first connected and only consider provision files that covers them all. This matters for the mobile builder where two devices are connected. Change-Id: I6beb59ace3fc5e071ba76222a20a607765943989 Reviewed-on: https://go-review.googlesource.com/105436 Run-TryBot: Elias Naur <elias.naur@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:Hyang-Ah Hana Kim <hyangah@gmail.com>
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Meng Zhuo authored
After CL 104636 the feature flags in internal/cpu are initialized before alginit and can now be used for aeshash feature detection. Also remove now unused runtime variables: x86: support_ssse3 support_sse42 support_aes arm64: support_aes Change-Id: I2f64198d91750eaf3c6cf2aac6e9e17615811ec8 Reviewed-on: https://go-review.googlesource.com/106015 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Elias Naur authored
Once upon a time, the iOS exec wrapper needed to change the current working directory for the binary being tested. To allow that, the runtime raised a SIGINT signal that the wrapper caught, changed the working directory and resumed the process. These days, the current working directory is passed from the wrapper to the runtime through a special entry in the app metadata and the SIGINT handshake is not necessary anymore. Remove the signaling from the runtime and the exec harness. Change-Id: Ia53bcc9e4724d2ca00207e22b91ce80a05271b55 Reviewed-on: https://go-review.googlesource.com/106096 Run-TryBot: Elias Naur <elias.naur@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Martin Möhrmann authored
Use constant masks and align the definition of isSet with arm64 and ppc64x. Change-Id: I0c6eae30da5e3ce797cde0dab4a39855d4d245d9 Reviewed-on: https://go-review.googlesource.com/94759Reviewed-by:
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Meng Zhuo authored
runtime.alginit needs runtime/support_{aes,ssse3,sse41} feature flag to init aeshash function but internal/cpu.init not be called yet. This CL will call internal/cpu.initialize before runtime.alginit, so that we can move all cpu features related code to internal/cpu. Change-Id: I00b8e403ace3553f8c707563d95f27dade0bc853 Reviewed-on: https://go-review.googlesource.com/104636Reviewed-by: -
Daniel Martí authored
When I added the Node.copy method, I converted most of the occurrences but missed a few. One of them, used only for gdata, was an unnecessary copy given that gdata does not modify the node it is passed. No allocation changes in compilebench. Passes toolstash -cmp on std cmd. Change-Id: I7fba5212377b75c6d6b3785e594a30568ff0732e Reviewed-on: https://go-review.googlesource.com/104937 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Tobias Klauser authored
EM_AARCH64 is defined as a constant, but the corresponding entry in machineStrings is missing. Add it. Change-Id: I6506404386efe608877095e635a290bbc0686215 Reviewed-on: https://go-review.googlesource.com/106035 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Tobias Klauser authored
The code reading these variables was removed in CL 41476. They are only set but never read now, so remove them. Change-Id: I6b0b8d813e9a3ec2a13586ff92746e00ad1b5bf0 Reviewed-on: https://go-review.googlesource.com/106095 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Keith Randall authored
Fixes #23617 Note that this CL does not affect darwin/arm and darwin/arm64, still TBD what, if anything, needs to be done for those. Change-Id: Ie1ee02a9f4d4d1fb9cd5dc432d900f926cc157db Reviewed-on: https://go-review.googlesource.com/105975Reviewed-by:
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Ian Lance Taylor authored
Fixes #24791 Change-Id: I62ac17313e6e09796586911d88191a36d67f9aa1 Reviewed-on: https://go-review.googlesource.com/106115 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by:
Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Ian Lance Taylor authored
Packages imported by the runtime should follow the same memory allocation rules as the runtime package. Change-Id: Id3fadb05605acbd6ac61d7fe6068a2add8bb2308 Reviewed-on: https://go-review.googlesource.com/105995 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Alberto Donizetti authored
And delete them from asm_test. Change-Id: I24f421b87e8cb4770c887a6dfd58eacd0088947d Reviewed-on: https://go-review.googlesource.com/106056Reviewed-by:
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Alberto Donizetti authored
And delete them from asm_test. Change-Id: I9a75efe9858ef9d7ac86065f860c2ae3f25b0941 Reviewed-on: https://go-review.googlesource.com/105597Reviewed-by:
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Matthew Dempsky authored
Also, when statically building itabs, compare *types.Sym instead of name alone so that method sets with duplicate non-exported methods are handled correctly. Fixes #24693. Change-Id: I2db8a3d6e80991a71fef5586a15134b6de116269 Reviewed-on: https://go-review.googlesource.com/105039 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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- 09 Apr, 2018 6 commits
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Matthew Dempsky authored
A package's height is defined as the length of the longest import path between itself and a leaf package (i.e., package with no imports). We can't rely on knowing the path of the package being compiled, so package height is useful for defining a package ordering. Updates #24693. Change-Id: I965162c440b6c5397db91b621ea0be7fa63881f1 Reviewed-on: https://go-review.googlesource.com/105038 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Matthew Dempsky authored
Previously, constant pointer-typed expressions could use either Mpint or NilVal as their Val depending on their construction, but const.go expects each type to have a single corresponding Val kind. This CL changes pointer-typed expressions to exclusively use Mpint. Fixes #21221. Change-Id: I6ba36c9b11eb19a68306f0b296acb11a8c254c41 Reviewed-on: https://go-review.googlesource.com/105315 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Matthew Dempsky authored
This used to be duplicated in methcmp and siglt, because Sig used its own representation for Syms. Instead, just use Syms, and add a (*Sym).Less method that both methcmp and siglt can use. Also, prune some impossible cases purportedly related to blank methods: the Go spec disallows blank methods in interface method sets, and addmethod drops blank methods without actually recording them in the type's method set. Passes toolstash-check. Updates #24693. Change-Id: I24e981659b68504d71518160486989a82505f513 Reviewed-on: https://go-review.googlesource.com/105936Reviewed-by:
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Matthew Dempsky authored
gofmt -r 'exportname(s) -> types.IsExported(s)' Passes toolstash-check. Change-Id: I6b428bd039c135be66d8b81c325d4e08bae69f24 Reviewed-on: https://go-review.googlesource.com/105938Reviewed-by:
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Daniel Martí authored
When I added the text/template/parse lines, I thought that both removed and added APIs should be listed here (i.e. both -pkg and +pkg lines). However that was wrong, as one can see by reading cmd/api/goapi.go, or seeing how removing the +pkg lines does not break the API test. Change-Id: I0a8dcd6db44762dadb58728acfb844bf118c9d45 Reviewed-on: https://go-review.googlesource.com/105376 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Michael Munday authored
Multi-byte comparison operations were used on amd64, arm64, i386 and s390x for comparisons with constant arrays, but only amd64 and i386 for comparisons with string constants. This CL combines the check for platform capability, since they have the same requirements, and also enables both on ppc64le which also supports load merging. Note that these optimizations currently use little endian byte order which results in byte reversal instructions on s390x. This should be fixed at some point. Change-Id: Ie612d13359b50c77f4d7c6e73fea4a59fa11f322 Reviewed-on: https://go-review.googlesource.com/102558 Run-TryBot: Michael Munday <mike.munday@ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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