[LLVMdev] Using Bugpoint to debug miscompilation

[John Criswell]

On 5/3/11 11:12 AM, Arushi Aggarwal wrote:
> Hi,
>
> I am trying to reduce what I believe to be a miscompilation bug.
>
> Running lli on my bitcode file causes a segmentation fault.
>
> However, running bugpoint as
>
> bugpoint file.bc

I think you need to tell bugpoint to link in libstdc++.  I think you can 
do that using the -Xlinker option.

-- John T.

>
> gives me the following errors,
> /tmp/ccAdmNqH.o: In function `_ZL17bus_error_handleriP7siginfoPv':
> bugpoint-test-program.bc-Vega5s.cbe.c:(.text+0x1b4e1): undefined 
> reference to `std::cerr'
> /tmp/ccAdmNqH.o: In function `bb_poolcheck_debug':
> bugpoint-test-program.bc-Vega5s.cbe.c:(.text+0x1bdbb): undefined 
> reference to `std::cerr'
> /tmp/ccAdmNqH.o: In function `DisplayChessBoard_OC_TEST':
> bugpoint-test-program.bc-Vega5s.cbe.c:(.text+0x3247d): undefined 
> reference to `std::cerr'
> /tmp/ccAdmNqH.o: In function `DisplayPieceBoards':
> bugpoint-test-program.bc-Vega5s.cbe.c:(.text+0x3a820): undefined 
> reference to `std::cerr'
> bugpoint-test-program.bc-Vega5s.cbe.c:(.text+0x3a8b1): undefined 
> reference to `std::cerr'
>
> What is the correct options I need to pass to bugpoint?
>
> Thanks,
> Arushi
>
>
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