[llvm-testresults] buildbot failure in smooshlab on llvm-gcc-i386-darwin9

[Jeffrey Yasskin]

On Thu, Mar 4, 2010 at 10:29 PM, Eric Christopher <echristo at apple.com> wrote:
>>>>>
>>>>> Definitely yours Jeffrey... I'll revert in a bit if I don't hear from you.
>>>>
>>>> Could you send the error message?
>>>
>>> It's a segfault building crt3.o as far as I can tell.  The builder is grumpy apparently:
>>
>> I got that email. I was wondering what the lines before it were, which
>> you, as an apple employee, can find, but I can't. Did I poke a bug in
>> gcc? Is this a stage 2 compile with a stack trace pointing at my
>> change? Is the builder just broken?
>
> Well got another builder to respond, here's the backtrace:
>
> Stack dump:
> 0.      Program arguments: llc -O0 -o /dev/null
>
> FAIL: /Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/llvm.src/test/FrontendC/2010-02-16-DbgVarScope.c
> Failed with signal(SIGABRT) at line 1
> while running: /Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/llvmgcc42.roots/llvmgcc42~dst/Developer/usr/bin/llvm-gcc-4.2 -m64 -fstrict-aliasing -Wstrict-aliasing -I/usr/include/c++/4.2.1/i686-apple-darwin10 -I/usr/include/c++/4.2.1 -emit-llvm -w -S -O0 -g /Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/llvm.src/test/FrontendC/2010-02-16-DbgVarScope.c -o - |   llc --disable-fp-elim -o 2010-02-16-DbgVarScope.c.tmp.s -O0 -relocation-model=pic
> While deleting: metadata %
> An asserting value handle still pointed to this value!
> UNREACHABLE executed at /Volumes/Sandbox/Buildbot/llvm/build.llvm-gcc-x86_64-darwin10-selfhost/llvm.src/lib/VMCore/Value.cpp:522!
> 0  llc               0x000000010067b3f2 PrintStackTrace(void*) + 34
> 1  llc               0x000000010067b8d9 SignalHandler(int) + 585
> 2  libSystem.B.dylib 0x00007fff80890eaa _sigtramp + 26
> 3  llc               0x0000000100018337 llvm::raw_ostream::write(char const*, unsigned long) + 323
> 4  llc               0x00000001006632f5 llvm::llvm_unreachable_internal(char const*, char const*, unsigned int) + 469
> 5  llc               0x000000010062fe77 llvm::ValueHandleBase::ValueIsDeleted(llvm::Value*) + 917
> 6  llc               0x0000000100630742 llvm::Value::~Value() + 46
> 7  llc               0x0000000100612a1d llvm::MDNode::destroy() + 25
> 8  llc
>    0x000000010060e678 llvm::LLVMContextImpl::~LLVMContextImpl() + 1324
> 9  llc               0x000000010060ed5e llvm::object_deleter<llvm::LLVMContext>::call(void*) + 30
> 10 llc               0x0000000100664840 llvm::llvm_shutdown() + 48
> 11 llc               0x000000010001a19a main + 5530
> 12 llc               0x0000000100018bf4 start + 52
> 13 llc               0x0000000000000006 start + 4294865990
> Stack dump:
> 0.      Program arguments: llc --disable-fp-elim -o 2010-02-16-DbgVarScope.c.tmp.s -O0 -relocation-model=pic
>
>

That definitely could be mine, and will be annoying to debug. I'll
roll back. I've reproduced it with a clang-compiled DbgVarScope.c, so
I don't need anything else from you. Thanks!