[LLVMdev] Usage of llvmc

[Chris Lattner]

On Mon, 28 May 2007, Seung Jae Lee wrote:
> Thank you so much for your reply, Chris.
> If so, can I ask you two things more?
>
> First, is there any way to have various optimizations on LLVM assembly such as -O options in llvmc?
> llvm-gcc doesn't seem to be working for these -O options...

llvm-gcc accepts and responds to -O[01234s].

> Second, I'm still not sure about difference between *.s and *.ll.
> LLVM assembly *.s file can be made from llvm-gcc -S.
> Another assembly *.ll file comes from just llvm-gcc.
> Is the difference between these two extensions on the optimized state?

It sounds to me like you're using llvm-gcc3.  Please upgrade to llvm 2.0 
and llvm-gcc4.

-Chris

> Thanks,
> Seung J. Lee
>
> ---- Original message ----
>> Date: Mon, 28 May 2007 00:08:47 -0700 (PDT)
>> From: Chris Lattner <sabre at nondot.org>
>> Subject: Re: [LLVMdev] Usage of llvmc
>> To: LLVM Developers Mailing List <llvmdev at cs.uiuc.edu>
>>
>> On Mon, 28 May 2007, Seung Jae Lee wrote:
>>> Hello, guys.
>>> I've tried to use llvmc to test optimization options but wasn't successful.
>>> Would you mind telling me what's wrong with this?
>>
>> Hi, llvmc is experimental and isn't really supported.  I'd suggest using
>> llvm-gcc instead.
>>
>> -Chris
>>
>>> -------------------------------------------------------------
>>> $ llvmc chc_03.c -O3 -o chc_03
>>> terminate called after throwing an instance of 'std::string'
>>> llvmc((anonymous namespace)::PrintStackTrace()+0x15)[0x8086091]
>>> /lib/tls/libc.so.6(abort+0xe9)[0x367199]
>>> /usr/lib/libstdc++.so.6(__gnu_cxx::__verbose_terminate_handler()+0xeb)[0x74e25b]
>>> /usr/lib/libstdc++.so.6[0x74bf71]
>>> /usr/lib/libstdc++.so.6[0x74bfa6]
>>> /usr/lib/libstdc++.so.6[0x74c0ef]
>>> llvmc(llvm::LLVMC_ConfigDataProvider::ReadConfigData(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)+0x849)[0x8066f65]
>>> [0x0]
>>> Aborted
>>> $
>>> -------------------------------------------------------------
>>> Forgive my ignorance.
>>> Thank you.
>>>
>>> Seung Jae Lee
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>>
>>
>> -Chris
>>
>> --
>> http://nondot.org/sabre/
>> http://llvm.org/
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-Chris

-- 
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