llvm dev - Nov 2012 - [LLVMdev] Mips instructions using llvm?

On 12 Nov 2012, at 17:22, janarbek wrote:
> What do you mean by "kind of vague" ? So does not guarantee to
generate correct instructions ?
Your question is vague.  Generally, you get better answers if you ask better
questions.
> I just tried what you said but getting following error ? Any ideas ? 
> What I did is clang hello.c -S -target mips-unknown-linux
> 
> Error: 
> In file included from hello.c:1
> In file included from /usr/include/stdio.h:28
> /usr/include/features.h:323:10 fatak error 'bits/predefs.h' file
not found.
This sounds like you are using headers that do not support MIPS.

David

On Mon, Nov 12, 2012 at 5:45 PM, janarbek <canarbekmatay at yahoo.com>
wrote:
> > What do you mean by "kind of vague" ? So does not guarantee
to generate
> correct instructions ?
>
> >Your question is vague.  Generally, you get better answers if you ask
> better questions.
>
> Sorry, I didn't mean to be rude. My question is does that
> mean institution generated may not guarantee what the
"instructions" mean
> to be ?
>
> >This sounds like you are using headers that do not support MIPS.
>
>  So can I fix this? In my hello.c code I have only stdio.h header file.
>

The issue here is that you don't just need some arbitrary stdio.h, you need
one that corresponds to your target.  Without knowing what that target is,
it's hard to say more.

What I meant by "kind of vague" is that MIPS is a CPU architecture,
not a
target.  Consider if you said, for example, "I want to generate x86-64
code": did you want code for Windows, or Ubuntu, or OS X, or something
else?  They're all very different.  (My example is x86 because I'm not
familiar with common MIPS targets.)

-Eli
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