Started 4 mo 26 days ago
Took 6 min 59 sec on green-dragon-20

Failed Build rL:366755 - C:366744 - #58177 (Jul 22, 2019 3:53:34 PM)

Revisions
  • http://llvm.org/svn/llvm-project/llvm/trunk : 366755
  • http://llvm.org/svn/llvm-project/cfe/trunk : 366744
  • http://llvm.org/svn/llvm-project/compiler-rt/trunk : 366738
  • http://llvm.org/svn/llvm-project/debuginfo-tests/trunk : 364589
  • http://llvm.org/svn/llvm-project/zorg/trunk : 366740
  • http://llvm.org/svn/llvm-project/libcxx/trunk : 366735
  • http://llvm.org/svn/llvm-project/clang-tools-extra/trunk : 366698
Changes
  1. llvm-objcopy/test: add REQUIRES: shell for use of umask

    (follow-up to r365162) (detail/ViewSVN)
    by dblaikie
  2. Analysis: Don't look through aliases when simplifying GEPs.

    It is not safe in general to replace an alias in a GEP with its aliasee
    if the alias can be replaced with another definition (i.e. via strong/weak
    resolution (linkonce_odr) or via symbol interposition (default visibility
    in ELF)) while the aliasee cannot. An example of how this can go wrong is
    in the included test case.

    I was concerned that this might be a load-bearing misoptimization (it's
    possible for us to use aliases to share vtables between base and derived
    classes, and on Windows, vtable symbols will always be aliases in RTTI
    mode, so this change could theoretically inhibit trivial devirtualization
    in some cases), so I built Chromium for Linux and Windows with and without
    this change. The file sizes of the resulting binaries were identical, so it
    doesn't look like this is going to be a problem.

    Differential Revision: https://reviews.llvm.org/D65118 (detail/ViewSVN)
    by pcc
  3. Fixing build error from commit 9285295.

    [Attributor] Liveness analysis.

    Liveness analysis abstract attribute used to indicate which BasicBlocks are dead and can therefore be ignored.
    Right now we are only looking at noreturn calls.

    Reviewers: jdoerfert, uenoku

    Subscribers: hiraditya, llvm-commits

    Differential revision: https://reviews.llvm.org/D64162 (detail/ViewSVN)
    by sstefan
  4. [NFC][PatternMatch] Refactor code into a proper "matcher for any integral constant"

    Having it as a proper matcher is better for reusability elsewhere
    (in a follow-up patch.) (detail/ViewSVN)
    by lebedevri
  5. [InstSimplify][NFC] Tests for skipping 'div-by-0' checks before @llvm.umul.with.overflow

    These may remain after @llvm.umul.with.overflow was canonicalized
    from the code that was originally doing the check via division. (detail/ViewSVN)
    by lebedevri
  6. [SimplifyCFG][NFC] Test that we fail to flatten CFG in JPEG "sign" value extend pattern

    This comes up in JPEG decoding, see e.g.
    Figure F.12 – Extending the sign bit of a decoded value in V
    of ITU T.81 (JPEG specification). (detail/ViewSVN)
    by lebedevri
  7. [SimplifyCFG][NFC] Test that we fail to flatten CFG after forming @llvm.umul.with.overflow

    Even if we formed @llvm.umul.with.overflow, we are still stuck
    with that guard against div-by-zero, which is no longer needed,
    because we didn't flatten the CFG. (detail/ViewSVN)
    by lebedevri
  8. [InstCombine][NFC] Tests for canonicalization of unsigned multiply overflow check (detail/ViewSVN)
    by lebedevri
  9. [NFC][PhaseOrdering] Add tests showcasing the problems of unsigned multiply overflow check

    While we can form the @llvm.mul.with.overflow easily,
    we are still left with that check that was guarding against div-by-0.
    And in the second case we won't even flatten the CFG. (detail/ViewSVN)
    by lebedevri
  10. [IndVarSimplify][NFC] Autogenerate check lines in loop_evaluate_1.ll

    Being affected by upcoming patch. (detail/ViewSVN)
    by lebedevri

Started by an SCM change (4 times)

This run spent:

  • 40 min waiting;
  • 6 min 59 sec build duration;
  • 47 min total from scheduled to completion.
LLVM/Clang Warnings: 1 warning.

Identified problems

Ninja target failed

Below is a link to the first failed ninja target.
Indication 1

Compile Error

This build failed because of a compile error. Below is a list of all errors in the build log:
Indication 2

Missing test results

The test result file Jenkins is looking for does not exist after the build.
Indication 3