Make -Zdump-mir dump shims #58103

RalfJung · 2019-02-03T14:13:31Z

Fixes #53532 by (a) making the MIR shim generation use the MIR pass infrastructure, and (b) fixing said infrastructure to handle the fallout.

Cc @eddyb @oli-obk

rust-highfive · 2019-02-03T14:13:34Z

r? @eddyb

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RalfJung · 2019-02-05T20:52:40Z

With some help for @eddyb, this is working now. :)

PR is ready for review.

eddyb · 2019-02-05T21:28:41Z

@bors r+

bors · 2019-02-05T21:28:41Z

📌 Commit 53a4bb193f88a2edabadad32f4bec292b9c0426e has been approved by eddyb

rust-highfive · 2019-02-05T22:12:24Z

The job x86_64-gnu-llvm-6.0 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_time:end:1c918220:start=1549400438115776704,finish=1549400552148568528,duration=114032791824
$ git checkout -qf FETCH_HEAD
travis_fold:end:git.checkout

Encrypted environment variables have been removed for security reasons.
See https://docs.travis-ci.com/user/pull-requests/#pull-requests-and-security-restrictions
$ export SCCACHE_BUCKET=rust-lang-ci-sccache2
$ export SCCACHE_REGION=us-west-1
Setting environment variables from .travis.yml
$ export IMAGE=x86_64-gnu-llvm-6.0
---
Check compiletest suite=mir-opt mode=mir-opt (x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu)
[01:09:20] 
[01:09:20] running 38 tests
[01:09:39] thread 'main' panicked at 'Some tests failed', src/tools/compiletest/src/main.rs:502:22
[01:09:39] .........F.F...............F..........
[01:09:39] 
[01:09:39] ---- [mir-opt] mir-opt/inline-closure-borrows-arg.rs stdout ----
[01:09:39] 
[01:09:39] error: compilation failed!
[01:09:39] error: compilation failed!
[01:09:39] status: exit code: 101
[01:09:39] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/mir-opt/inline-closure-borrows-arg.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "-Zdump-mir=all" "-Zmir-opt-level=3" "-Zdump-mir-exclude-pass-number" "-Zdump-mir-dir=/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/inline-closure-borrows-arg" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/inline-closure-borrows-arg/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Z" "span_free_formats" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/inline-closure-borrows-arg/auxiliary"
[01:09:39] ------------------------------------------
[01:09:39] 
[01:09:39] ------------------------------------------
[01:09:39] stderr:
---
[01:09:39] note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
[01:09:39] 
[01:09:39] note: rustc 1.34.0-dev running on x86_64-unknown-linux-gnu
[01:09:39] 
[01:09:39] note: compiler flags: -Z threads=1 -Z dump-mir=all -Z mir-opt-level=3 -Z dump-mir-exclude-pass-number -Z dump-mir-dir=/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/inline-closure-borrows-arg -Z unstable-options -Z span_free_formats -C prefer-dynamic -C rpath
[01:09:39] 
[01:09:39] ------------------------------------------
[01:09:39] 
[01:09:39] thread '[mir-opt] mir-opt/inline-closure-borrows-arg.rs' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:3295:9
[01:09:39] thread '[mir-opt] mir-opt/inline-closure-borrows-arg.rs' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:3295:9
[01:09:39] note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
[01:09:39] 
[01:09:39] ---- [mir-opt] mir-opt/inline-closure.rs stdout ----
[01:09:39] 
[01:09:39] error: compilation failed!
[01:09:39] status: exit code: 101
[01:09:39] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/mir-opt/inline-closure.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "-Zdump-mir=all" "-Zmir-opt-level=3" "-Zdump-mir-exclude-pass-number" "-Zdump-mir-dir=/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/inline-closure" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/inline-closure/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Z" "span_free_formats" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/inline-closure/auxiliary"
[01:09:39] ------------------------------------------
[01:09:39] 
[01:09:39] ------------------------------------------
[01:09:39] stderr:
---
[01:09:39] note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
[01:09:39] 
[01:09:39] note: rustc 1.34.0-dev running on x86_64-unknown-linux-gnu
[01:09:39] 
[01:09:39] note: compiler flags: -Z threads=1 -Z dump-mir=all -Z mir-opt-level=3 -Z dump-mir-exclude-pass-number -Z dump-mir-dir=/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/inline-closure -Z unstable-options -Z span_free_formats -C prefer-dynamic -C rpath
[01:09:39] 
[01:09:39] ------------------------------------------
[01:09:39] 
[01:09:39] thread '[mir-opt] mir-opt/inline-closure.rs' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:3295:9
[01:09:39] thread '[mir-opt] mir-opt/inline-closure.rs' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:3295:9
[01:09:39] 
[01:09:39] ---- [mir-opt] mir-opt/retag.rs stdout ----
[01:09:39] 
[01:09:39] error: compilation failed!
[01:09:39] status: exit code: 101
[01:09:39] command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/src/test/mir-opt/retag.rs" "-Zthreads=1" "--target=x86_64-unknown-linux-gnu" "-Zdump-mir=all" "-Zmir-opt-level=3" "-Zdump-mir-exclude-pass-number" "-Zdump-mir-dir=/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/retag" "-C" "prefer-dynamic" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/retag/a" "-Crpath" "-O" "-Zunstable-options" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-Z" "mir-emit-retag" "-Z" "mir-opt-level=0" "-Z" "span_free_formats" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/retag/auxiliary"
[01:09:39] ------------------------------------------
[01:09:39] 
[01:09:39] ------------------------------------------
[01:09:39] stderr:
---
[01:09:39] note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
[01:09:39] 
[01:09:39] note: rustc 1.34.0-dev running on x86_64-unknown-linux-gnu
[01:09:39] 
[01:09:39] note: compiler flags: -Z threads=1 -Z dump-mir=all -Z mir-opt-level=3 -Z dump-mir-exclude-pass-number -Z dump-mir-dir=/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt/retag -Z unstable-options -Z mir-emit-retag -Z mir-opt-level=0 -Z span_free_formats -C prefer-dynamic -C rpath
[01:09:39] 
[01:09:39] ------------------------------------------
[01:09:39] 
[01:09:39] thread '[mir-opt] mir-opt/retag.rs' panicked at 'explicit panic', src/tools/compiletest/src/runtest.rs:3295:9
---
[01:09:39] test result: FAILED. 35 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out
[01:09:39] 
[01:09:39] 
[01:09:39] 
[01:09:39] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--src-base" "/checkout/src/test/mir-opt" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/mir-opt" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--mode" "mir-opt" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/usr/lib/llvm-6.0/bin/FileCheck" "--host-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python2.7" "--lldb-python" "/usr/bin/python2.7" "--gdb" "/usr/bin/gdb" "--quiet" "--llvm-version" "6.0.0\n" "--system-llvm" "--cc" "" "--cxx" "" "--cflags" "" "--llvm-components" "" "--llvm-cxxflags" "" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"
[01:09:39] 
[01:09:39] 
[01:09:39] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test
[01:09:39] Build completed unsuccessfully in 0:11:30
[01:09:39] Build completed unsuccessfully in 0:11:30
[01:09:39] make: *** [check] Error 1
[01:09:39] Makefile:48: recipe for target 'check' failed
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:0617ac48
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Tue Feb  5 22:12:20 UTC 2019
---
travis_time:end:23549ac0:start=1549404741764474738,finish=1549404741769243653,duration=4768915
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:178a6a70
$ 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:00012129
travis_time:start:00012129
$ 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:0a907da0
$ 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)

RalfJung · 2019-02-05T22:19:39Z

@bors r-

investigating

eddyb · 2019-02-05T22:41:48Z

@bors r+

bors · 2019-02-05T22:41:49Z

📌 Commit 26df5bd39993c0e43441a83329be705299d4197d has been approved by eddyb

bors · 2019-02-09T04:04:55Z

☔ The latest upstream changes (presumably #58316) made this pull request unmergeable. Please resolve the merge conflicts.

RalfJung · 2019-02-09T11:21:07Z

Rebased.

@bors r=eddyb

bors · 2019-02-09T11:21:07Z

📌 Commit 544b3a1 has been approved by eddyb

bors · 2019-02-10T08:52:21Z

⌛ Testing commit 544b3a1 with merge de111e6...

@eddyb

Make -Zdump-mir dump shims Fixes #53532 by (a) making the MIR shim generation use the MIR pass infrastructure, and (b) fixing said infrastructure to handle the fallout. Cc @eddyb @oli-obk

bors · 2019-02-10T11:18:45Z

☀️ Test successful - checks-travis, status-appveyor
Approved by: eddyb
Pushing de111e6 to master...

rust-highfive assigned eddyb Feb 3, 2019

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RalfJung changed the title ~~WIP: Make -Zdump-mir dump shims~~ Make -Zdump-mir dump shims Feb 5, 2019

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 Feb 5, 2019

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-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Feb 5, 2019

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 Feb 5, 2019

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-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Feb 9, 2019

RalfJung added 9 commits February 9, 2019 12:08

use pass infrastructure for mir shims, so that they can get dumped

f5bbcf3

fix dumping MIR from another crate

276219e

fix rebase fallout: AnonConsts are Consts, and Methods are functions

cd21696

pass full InstanceDef to run_passes

2708946

disambiguate filenames of multiple drop shims being dumped

fed4c5d

fix --emit=mir: StructCtors are functions

27ce224

fix node classification

84d75db

fix printing closures

a413242

fix rebase fallout

544b3a1

RalfJung force-pushed the mir-shim-dump branch from 26df5bd to 544b3a1 Compare February 9, 2019 11:20

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 Feb 9, 2019

Mark-Simulacrum mentioned this pull request Feb 10, 2019

Rollup of 17 pull requests #58338

Closed

bors added the merged-by-bors This PR was explicitly merged by bors. label Feb 10, 2019

bors merged commit 544b3a1 into rust-lang:master Feb 10, 2019

This was referenced Feb 10, 2019

Use normal mutable borrows in matches #57609

Merged

HirId-ify hir::BodyId #58167

Merged

RalfJung mentioned this pull request Feb 15, 2019

mir-opt tests extremely slow. #58485

Closed

RalfJung deleted the mir-shim-dump branch February 17, 2019 11:06

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