[llvm-dev] Broken LIT tests on Sanitizer Builds

[Vitaly Buka via llvm-dev]

This one runs with Asan https://lab.llvm.org/buildbot/#/builders/168 and
does check-llvm
However we don't set -DBUILD_SHARED_LIBS=On

On Mon, 15 Nov 2021 at 10:11, Mitch Phillips <mitchp at google.com> wrote:

> Hi Ellis,
>
> Are you building using GCC as the host compiler? I can't say that building
> clang with gcc-ASan is a well tested (or well-supported) configuration.
>
> We do have ASan buildbots that run check-all, but the host compiler is
> clang:
> https://lab.llvm.org/buildbot/#/builders/168/builds/3354/steps/12/logs/stdio
>
> Thanks,
> Mitch.
>
> On Mon, Nov 15, 2021 at 10:08 AM Ellis Hoag via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> I recently built with -DLLVM_USE_SANITIZER=Address, ran the LIT tests,
>> and noticed we have at least two tests with memory bugs on main. Here are
>> the commands I ran
>>
>>
>> $ cmake -GNinja -DLLVM_ENABLE_PROJECTS="clang;"
>> -DCMAKE_BUILD_TYPE=RelWithDebInfo -DLLVM_ENABLE_ASSERTIONS=On
>> -DBUILD_SHARED_LIBS=On -DLLVM_USE_SANITIZER=Address ../llvm
>> $ ninja check-llvm
>> ...
>> ==2157126==ERROR: AddressSanitizer: global-buffer-overflow on address
>> 0x7fb9f778c55f at pc 0x7fba0487419d bp 0x7ffe92a0a230 sp 0x7ffe92a099d8
>> READ of size 1 at 0x7fb9f778c55f thread T0
>>     #0 0x7fba0487419c  (/lib64/libasan.so.5+0xad19c)
>>     #1 0x7fb9e7bcc439 in llvm::StringRef::strLen(char const*)
>> /home/ellishoag/local/repos/llvm-project/llvm/include/llvm/ADT/StringRef.h:86
>>     #2 0x7fb9e7bcc439 in llvm::StringRef::StringRef(char const*)
>> /home/ellishoag/local/repos/llvm-project/llvm/include/llvm/ADT/StringRef.h:108
>>     #3 0x7fb9e7bcc439 in getMnemonic
>> /home/ellishoag/local/repos/llvm-project/llvm/lib/MC/MCAsmStreamer.cpp:159
>> ...
>> Failed Tests (2):
>>   LLVM :: CodeGen/AArch64/machine-outliner-remarks.ll
>>   LLVM :: CodeGen/X86/x86-shrink-wrapping.ll
>>
>>
>> I think check-clang also has some broken tests. Should we be running
>> these checks in https://lab.llvm.org/buildbot/ ? I'm not super familiar
>> with this site, but it seems that we have asan builds, but that we don't
>> run check-llvm or check-clang.
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20211115/ee69454e/attachment.html>