[llvm-dev] How to dump broken IR from LLVM backend?

Dipanjan Das via llvm-dev
Sun, 22 Oct 2017 06:53:35 -0000

Yes, that definitely works. Wanted to know if there's a switch for file
output or not.

On 21 October 2017 at 23:45, 陳韋任 <chenwj.cs97g at g2.nctu.edu.tw> wrote:

> Just use Unix IO redirect? `llc -mllvm -print-after-all &> a.txt`
>
> 2017-10-22 14:17 GMT+08:00 Dipanjan Das via llvm-dev <
> llvm-dev at lists.llvm.org>:
>
>>
>> Seems like "-mllvm -print-after-all" does the trick. Is there
any switch
>> that dumps the output to a file instead of console?
>>
>> On 21 October 2017 at 21:33, Dipanjan Das <mail.dipanjan.das at
gmail.com>
>> wrote:
>>
>>>
>>> My pass complains and gives up after spitting out:
>>>
>>> =====================================>>> Instruction does
not dominate all uses!
>>>   %44 = icmp ne i8** %endptr, null
>>>   br i1 %44, label %32, label %33
>>> Instruction has bogus parent pointer!
>>> =====================================>>>
>>> Is there any way to dump the entire IR even in broken form from the
>>> backend so that I can inspect what's going on?
>>>
>>> --
>>>
>>> Thanks & Regards,
>>> Dipanjan
>>>
>>
>>
>>
>> --
>>
>> Thanks & Regards,
>> Dipanjan
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>
>>
>
>
> --
> Wei-Ren Chen (陳韋任)
> Homepage: https://people.cs.nctu.edu.tw/~chenwj
>



--

Thanks & Regards,
Dipanjan
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