llvm dev - May 2011 - [LLVMdev] UNREACHABLE executed ! error

Hi,

On LLVM 2.8, on executing following command
../install/bin/lli test.bc

It gives following error

"UNREACHABLE executed!
0  lli 0x08699718
Stack dump:
0.	Program arguments: ../install/bin/lli test.bc
1.	Running pass 'X86 Machine Code Emitter' on function '@main'
Aborted"

But,
../install/bin/llc test.bc :- does not give any error.

Also, This problem does not occur for LLVM 2.6.



Regards
Prachee Yogi

On 5/6/11 3:31 PM, pracheeyogi at cse.iitb.ac.in wrote:
> Hi,
>
> On LLVM 2.8, on executing following command
> ../install/bin/lli test.bc
>
> It gives following error
>
> "UNREACHABLE executed!
> 0  lli 0x08699718
> Stack dump:
> 0.	Program arguments: ../install/bin/lli test.bc
> 1.	Running pass 'X86 Machine Code Emitter' on function
'@main'
> Aborted"
>
> But,
> ../install/bin/llc test.bc :- does not give any error.
>
> Also, This problem does not occur for LLVM 2.6.
lli is a JIT that runs the program.  llc only generates native assembly 
code for the bitcode file.  So, in the first case, your program is 
running and hitting an unreachable statement, and in the second case, 
your program is not running at all.

-- John T.
>
>
> Regards
> Prachee Yogi
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

But we are not getting this error for llvm-2.6 version.
In llvm-2.6
../install/bin/lli test.bc
didn't give any error.

> On 5/6/11 3:31 PM, pracheeyogi at cse.iitb.ac.in wrote:
>> Hi,
>>
>> On LLVM 2.8, on executing following command
>> ../install/bin/lli test.bc
>>
>> It gives following error
>>
>> "UNREACHABLE executed!
>> 0  lli 0x08699718
>> Stack dump:
>> 0.	Program arguments: ../install/bin/lli test.bc
>> 1.	Running pass 'X86 Machine Code Emitter' on function
'@main'
>> Aborted"
>>
>> But,
>> ../install/bin/llc test.bc :- does not give any error.
>>
>> Also, This problem does not occur for LLVM 2.6.
>
> lli is a JIT that runs the program.  llc only generates native assembly
> code for the bitcode file.  So, in the first case, your program is
> running and hitting an unreachable statement, and in the second case,
> your program is not running at all.
>
> -- John T.
>
>>
>>
>> Regards
>> Prachee Yogi
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>

Regards
Prachee Yogi