[cfe-dev] Any buildbots building clang/llvm with gcc?

[Nico Weber via cfe-dev]

We build clang with gcc in Chromium a lot, but with an older gcc (4.8 at
the moment).

On Wed, Mar 9, 2016 at 3:55 AM, Mikael Holmén <cfe-dev at lists.llvm.org>
wrote:

> Hi,
>
> Are there any buildbots that build clang/llvm with gcc and run tests
> nowadays?
>
> When testing our out-of-tree target we are regularly building the compiler
> with both clang and gcc and lately we have noticed an increasing number of
> problems when using gcc which the rest of the community doesn't seem to
> notice?
>
> E.g. for some days now at top-of-tree, if building with gcc 4.9.1 or 5.1.0
> one test case fails with SEGV:
>
> FAIL: Clang-Unit ::
> ASTMatchers/ASTMatchersTests/IsAnyPointer.MatchesObjcPointer (8218 of 25131)
> ******************** TEST 'Clang-Unit ::
> ASTMatchers/ASTMatchersTests/IsAnyPointer.MatchesObjcPointer' FAILED
> ********************
> Note: Google Test filter = IsAnyPointer.MatchesObjcPointer
> [==========] Running 1 test from 1 test case.
> [----------] Global test environment set-up.
> [----------] 1 test from IsAnyPointer
> [ RUN      ] IsAnyPointer.MatchesObjcPointer
> #0 0x00000000005b4f15 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
> (/repo/bbijenkins/bbi-sw-stable-jenkins/workspace/llvm-master/build-all-gcc49/tools/clang/unittests/ASTMatchers/ASTMatchersTests+0x5b4f15)
> #1 0x00000000005b2bc6 llvm::sys::RunSignalHandlers()
> (/repo/bbijenkins/bbi-sw-stable-jenkins/workspace/llvm-master/build-all-gcc49/tools/clang/unittests/ASTMatchers/ASTMatchersTests+0x5b2bc6)
> #2 0x00000000005b2dda SignalHandler(int)
> (/repo/bbijenkins/bbi-sw-stable-jenkins/workspace/llvm-master/build-all-gcc49/tools/clang/unittests/ASTMatchers/ASTMatchersTests+0x5b2dda)
> #3 0x00007f194f891810 __restore_rt (/lib64/libpthread.so.0+0xf810)
> #4 0x00000000005463a0
> clang::ast_matchers::IsAnyPointer_MatchesObjcPointer_Test::TestBody()
> (/repo/bbijenkins/bbi-sw-stable-jenkins/workspace/llvm-master/build-all-gcc49/tools/clang/unittests/ASTMatchers/ASTMatchersTests+0x5463a0)
> #5 0x00000000005d3e02 testing::Test::Run()
> (/repo/bbijenkins/bbi-sw-stable-jenkins/workspace/llvm-master/build-all-gcc49/tools/clang/unittests/ASTMatchers/ASTMatchersTests+0x5d3e02)
>
> So, are there any buildbots that should notice this or have everyone
> stopped using gcc?
>
> Best regards,
> Mikael
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