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Upgrade LLVM to trunk, still version 8 #55835

Merged
merged 7 commits into from
Nov 26, 2018
Merged

Upgrade LLVM to trunk, still version 8 #55835

merged 7 commits into from
Nov 26, 2018

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alexcrichton
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This commit upgrades the LLVM/LLD/compiler-rt submodules used to the current trunk versions in upstream. Some activity has happened on the wasm SIMD side of things as well as LLD which we'd like to pick up!

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r? @nikomatsakis

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⚠️ Warning ⚠️

  • These commits modify submodules.

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Nov 9, 2018
@alexcrichton alexcrichton mentioned this pull request Nov 9, 2018
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@bors: try

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bors commented Nov 10, 2018

⌛ Trying commit 67053e5 with merge 27f6007...

bors added a commit that referenced this pull request Nov 10, 2018
@bors
Auto merge of #55835 - alexcrichton:llvm-upgrade, r=<try>
27f6007 
Upgrade LLVM to trunk, still version 8

This commit upgrades the LLVM/LLD/compiler-rt submodules used to the current trunk versions in upstream. Some activity has happened on the wasm SIMD side of things as well as LLD which we'd like to pick up!
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bors commented Nov 10, 2018

💔 Test failed - status-travis

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The job dist-x86_64-linux-alt of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log. 
travis_fold:end:services

travis_fold:start:git.checkout
travis_time:start:0cb78dc4
$ git clone --depth=2 --branch=try https://github.com/rust-lang/rust.git rust-lang/rust
---
    100% |████████████████████████████████| 552kB 2.0MB/s 
Collecting botocore==1.12.42 (from awscli)
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
  Downloading https://files.pythonhosted.org/packages/6f/ad/706263fda4a8c673fd58c1cf03160dfdcf093d6614130193d3ce12a81fad/botocore-1.12.42-py2.py3-none-any.whl (4.8MB)
    0% |                                | 10kB 46.1MB/s eta 0:00:01
    0% |▏                               | 20kB 44.2MB/s eta 0:00:01
    0% |▏                               | 30kB 48.7MB/s eta 0:00:01
    0% |▎                               | 40kB 27.1MB/s eta 0:00:01
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Broadcast message from root@travis-job-ae3ff621-4476-46fa-bda8-e5cc5dd405bf
 (unknown) at 6:04 ...
The system is going down for power off NOW!

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 10, 2018
@alexcrichton
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@bors: try

Gotta prime those caches

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bors commented Nov 10, 2018

⌛ Trying commit 224ec5c3a984f1a98dc9a2cd08ef2ae005471d63 with merge dbda7ea8913700f3c33951571c2cad2ea416d88e...

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@rust-timer build dbda7ea8913700f3c33951571c2cad2ea416d88e

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Success: Queued dbda7ea8913700f3c33951571c2cad2ea416d88e with parent 42959a2, comparison URL.

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bors commented Nov 11, 2018

☔ The latest upstream changes (presumably #54864) made this pull request unmergeable. Please resolve the merge conflicts.

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Finished benchmarking try commit dbda7ea8913700f3c33951571c2cad2ea416d88e

@alexcrichton
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Well by golly gee those are some good numbers, surprising!

@nikic
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nikic commented Nov 11, 2018

Those are some very nice results!

At least the improvements on inflate are primarilty due to https://reviews.llvm.org/D53245 -- this used to spend ~25% of the time applying DomTree updates in JumpThreading and now no longer does.

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Rebased! I've done some (hopefully) thorough testing locally and I've discovered... amazingly zero regressions!

Should be ready to go!

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vext01 commented Nov 12, 2018 •
edited
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Hi Alex,

Thanks for dealing with this. It should have really been me doing the work, since I spawned the discussion!

I was wondering: do you have a way to check for performance regressions?

Thanks

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vext01 commented Nov 12, 2018

Ah yes, I see you have a benchmarking bot :) Neat.

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@vext01 oh no worries! I ended up wanting to do it for unrelated reasons anyway and figured I could help bootstrap the process at least, I didn't expect it to go so smoothly, but I'm sure bors will have a thing or two to say about that

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@bors r+

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bors commented Nov 12, 2018

📌 Commit 28d73341204480bbbd82b189ee84f839bf8dd208 has been approved by nikomatsakis

@bors bors removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Nov 12, 2018
alexcrichton and others added 7 commits November 25, 2018 20:27
@alexcrichton
Upgrade to LLVM trunk
7be0b23
@alexcrichton
Handle some renamed ThinLTO functions
ae5b350
@vext01 @alexcrichton
Make Rustc build with LLVM trunk.
a43a7a0
@vext01 @alexcrichton
Conditionally compile in only the extra argument.
bf01bcb
@alexcrichton
wasm: Pass --no-demangle to LLD
c86b152 
Our mangling scheme is not C++'s, so tell LLD to not demangle anything
so we can handle Rust-specific demangling ourselves.
@alexcrichton
Pass --export-dynamic to LLD for wasm
cc9c91d 
This should handle recent symbol visibility changes happening, although
we'll likely want to tweak this in the future!
@alexcrichton
Temporarily disable LLDB
7215963
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Oops, forgot to disable LLDB

@bors: r=nikomatsakis

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bors commented Nov 26, 2018

📌 Commit 7215963 has been approved by nikomatsakis

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Nov 26, 2018
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bors commented Nov 26, 2018

⌛ Testing commit 7215963 with merge 76e5ed8...

bors added a commit that referenced this pull request Nov 26, 2018
@bors
Auto merge of #55835 - alexcrichton:llvm-upgrade, r=nikomatsakis
76e5ed8 
Upgrade LLVM to trunk, still version 8

This commit upgrades the LLVM/LLD/compiler-rt submodules used to the current trunk versions in upstream. Some activity has happened on the wasm SIMD side of things as well as LLD which we'd like to pick up!
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bors commented Nov 26, 2018

💔 Test failed - status-travis

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Nov 26, 2018
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The job dist-i686-linux of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log. 
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[00:27:48] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Support/BinaryItemStream.h
[00:27:48] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Support/LICENSE.TXT
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[00:27:48] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Support/MSVCErrorWorkarounds.h
[00:27:48] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Support/xxhash.h
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[00:27:48] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Support/FileOutputBuffer.h
---
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/IR/SafepointIRVerifier.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/IR/SymbolTableListTraits.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/IR/DiagnosticInfo.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/IR/IntrinsicsBPF.td
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[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/IR/TypeBuilder.h
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[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Analysis/LoopInfo.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Analysis/Lint.h
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[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Analysis/PHITransAddr.h
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[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Analysis/IndirectCallPromotionAnalysis.h
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[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/IRReader
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/IRReader/IRReader.h
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[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/XRay/BlockVerifier.h
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[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/XRay/FDRRecords.h
---
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Target/GlobalISel/RegisterBank.td
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Target/TargetSelectionDAG.td
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Target/TargetSchedule.td
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Target/TargetPfmCounters.td
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Target/TargetMachine.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Target/CodeGenCWrappers.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/Vectorize.h
---
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/IPO/SCCP.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/IPO/DeadArgumentElimination.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/IPO/SyntheticCountsPropagation.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/IPO/PartialInlining.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/IPO/HotColdSplitting.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/IPO/AlwaysInliner.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/IPO/ForceFunctionAttrs.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/IPO/Inliner.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/IPO/GlobalOpt.h
---
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/Instrumentation/PGOInstrumentation.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/Instrumentation/InstrProfiling.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/Instrumentation/GCOVProfiler.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/Instrumentation/CGProfile.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/Transforms/Instrumentation/ControlHeightReduction.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/WindowsResource/ResourceProcessor.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/WindowsResource/ResourceScriptToken.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/WindowsResource/ResourceScriptTokenList.h
[00:27:49] -- Installing: /checkout/obj/build/i686-unknown-linux-gnu/llvm/include/llvm/ToolDrivers
---
Building stage2 tool cargo (i686-unknown-linux-gnu)
[01:10:19]  Downloading crates ...
[01:11:00] warning: spurious network error (2 tries remaining): [28] Timeout was reached (Resolving timed out after 30000 milliseconds)
[01:11:40] warning: spurious network error (1 tries remaining): [28] Timeout was reached (Resolving timed out after 30000 milliseconds)
[01:12:20] error: failed to download from `https://crates.io/api/v1/crates/openssl-src/111.0.1+1.1.1/download`
[01:12:20] Caused by:
[01:12:20]   [28] Timeout was reached (Resolving timed out after 30000 milliseconds)
[01:12:20] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap dist --build i686-unknown-linux-gnu --host i686-unknown-linux-gnu --target i686-unknown-linux-gnu
[01:12:20] Build completed unsuccessfully in 1:07:50
---
travis_time:end:1576759a:start=1543215282437303741,finish=1543215282447045670,duration=9741929
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:32fe3cf5
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb --batch -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:2e8aac40
travis_time:start:2e8aac40
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:2d5d1764
$ dmesg | grep -i kill

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

@alexcrichton
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@bors: retry

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 26, 2018
@RalfJung
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Cc travis-ci/travis-ci#9696

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bors commented Nov 26, 2018

⌛ Testing commit 7215963 with merge 6bfb46e...

bors added a commit that referenced this pull request Nov 26, 2018
@bors
Auto merge of #55835 - alexcrichton:llvm-upgrade, r=nikomatsakis
6bfb46e 
Upgrade LLVM to trunk, still version 8

This commit upgrades the LLVM/LLD/compiler-rt submodules used to the current trunk versions in upstream. Some activity has happened on the wasm SIMD side of things as well as LLD which we'd like to pick up!
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bors commented Nov 26, 2018

☀️ Test successful - status-appveyor, status-travis
Approved by: nikomatsakis
Pushing 6bfb46e to master...

@bors bors merged commit 7215963 into rust-lang:master Nov 26, 2018
@matthiaskrgr matthiaskrgr mentioned this pull request Nov 27, 2018
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@alexcrichton alexcrichton deleted the llvm-upgrade branch November 28, 2018 17:15
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Final perf results from the landing are here. Very nice results, mostly on opt builds.

@pmarcelll pmarcelll mentioned this pull request Dec 29, 2018
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