llvm dev - Sep 2012 - [LLVMdev] Problems on getting UNREACHABLE executed

Hi Andy,
> I am currently using llvm to compile memcache to get the bitcode. I simply
> change all the "gcc -c" command to "clang -emit-llvm
-c", and output ".o" to
> ".bc". And all gcc link command to llvm-ld. By these means, I
successfully get
> the bitcode file, but when I run it using "lli", it fails with
the error:
>
> UNREACHABLE executed!
> 0 lli 0x087c2cab
> Stack dump:
> 0. Program arguments lli timedrun.bc
> 1. Running Pass 'X86 Machine Code Emitter' on function @main
> aborted
>
> I encountered the same error when executing other executables in the
project.
> Why does this happen? Is there any suggestions to get rid of such problem?
this probably means that the bitcode contains something that is not supported
by lli, such as inline assembler.  Try passing the -use-mcjit option to lli.
If that doesn't work, feel free to open a bugreport and attach the bitcode.

Ciao, Duncan.

Dear Ciao, Duncan,
Thank you for replying. I tried and the error goes away. But there comes a new
error:
LLVM ERROR: Unknown object format!
How can I solve this problem?
Thank you!
BestAndy
--- 12年9月18日，周二, Duncan Sands <baldrick at free.fr> 写道：

发件人: Duncan Sands <baldrick at free.fr>
主题: Re: [LLVMdev] Problems on getting UNREACHABLE executed
收件人: llvmdev at cs.uiuc.edu
日期: 2012年9月18日,周二,下午4:02

Hi Andy,
> I am currently using llvm to compile memcache to get the bitcode. I simply
> change all the "gcc -c" command to "clang -emit-llvm
-c", and output ".o" to
> ".bc". And all gcc link command to llvm-ld. By these means, I
successfully get
> the bitcode file, but when I run it using "lli", it fails with
the error:
>
> UNREACHABLE executed!
> 0 lli 0x087c2cab
> Stack dump:
> 0. Program arguments lli timedrun.bc
> 1. Running Pass 'X86 Machine Code Emitter' on function @main
> aborted
>
> I encountered the same error when executing other executables in the
project.
> Why does this happen? Is there any suggestions to get rid of such problem?
this probably means that the bitcode contains something that is not supported
by lli, such as inline assembler.  Try passing the -use-mcjit option to lli.
If that doesn't work, feel free to open a bugreport and attach the bitcode.

Ciao, Duncan.

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Hi Andy,
> Thank you for replying. I tried and the error goes away. But there comes a
new
> error:
>
> LLVM ERROR: Unknown object format!
>
> How can I solve this problem?
I don't know, sorry.

Best wishes, Duncan.
>
> Thank you!
>
> Best
> Andy
> --- *12年9月18日，周二, Duncan Sands /<baldrick at free.fr>/* 写道：
>
>
>     发件人: Duncan Sands <baldrick at free.fr>
>     主题: Re: [LLVMdev] Problems on getting UNREACHABLE executed
>     收件人: llvmdev at cs.uiuc.edu
>     日期: 2012年9月18日,周二,下午4:02
>
>     Hi Andy,
>
>      > I am currently using llvm to compile memcache to get the bitcode.
I simply
>      > change all the "gcc -c" command to "clang
-emit-llvm -c", and output ".o" to
>      > ".bc". And all gcc link command to llvm-ld. By these
means, I
>     successfully get
>      > the bitcode file, but when I run it using "lli", it
fails with the error:
>      >
>      > UNREACHABLE executed!
>      > 0 lli 0x087c2cab
>      > Stack dump:
>      > 0. Program arguments lli timedrun.bc
>      > 1. Running Pass 'X86 Machine Code Emitter' on function
@main
>      > aborted
>      >
>      > I encountered the same error when executing other executables in
the project.
>      > Why does this happen? Is there any suggestions to get rid of such
problem?
>
>     this probably means that the bitcode contains something that is not
supported
>     by lli, such as inline assembler.  Try passing the -use-mcjit option to
lli.
>     If that doesn't work, feel free to open a bugreport and attach the
bitcode.
>
>     Ciao, Duncan.
>
>     _______________________________________________
>     LLVM Developers mailing list
>     LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu
>     http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>