[LLVMdev] arm neon intrinsics cross compile error on windows system

[Seung-yeon Choe]

Hello, James Molly.

Thank you for your advices.

Now I aware that this is the problem of stdint.h. And, codesourcery
toolchain also has stdint.h header file at same place of stdio.h

Generally, Clang has "lib/clang/3.0/include" default search path.
If I added codesourcery toolchain path for stdio.h with -I option, stdint.h
has been loaded at the specified toolchain path first cuz clang's default
search path priority moved back.

In my case, when I busted codesourcery toolchains stdint.h, it's okay to
build.
And also it was okay cuz clang called /usr/include/stdint.h first on
Unbuntu linux.

How could I avoid this conflict, not to be removed stdint.h of toolchian?
I think arm_neon.h in clang lib folder can handle this.

Thanks and regards
Seung-yeon.



2011/11/24 James Molloy <james.molloy at arm.com>

>  Hi,****
>
> ** **
>
> > additionally, I also specified include dir of arm codesourcery latest
> toolchain because of missing stdio.h and stdint.h .****
>
> ** **
>
> I think this is your problem. Uint32_t is defined in stdint.h, and if
> you’re not using clang’s stdint.h then all bets are off (int is the same
> size as long on 32-bit x86, so it’s perfectly reasonable for gcc’s headers
> to define int32_t as long).****
>
> ** **
>
> Clang comes with stdint.h (but not stdio.h) – you should use clang’s.****
>
> ** **
>
> Cheers,****
>
> ** **
>
> James****
>
> ** **
>
> *From:* llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] *On
> Behalf Of *Seung-yeon Choe
> *Sent:* 23 November 2011 14:42
> *To:* Anton Korobeynikov
> *Cc:* llvmdev at cs.uiuc.edu
> *Subject:* Re: [LLVMdev] arm neon intrinsics cross compile error on
> windows system****
>
> ** **
>
> Hello, Anton Korobeynikov.****
>
> ** **
>
> I just built the llvm using ms visual studio 2010 and ran the compile
> command on windows default command console.
> additionally, I also specified include dir of arm codesourcery latest
> toolchain because of missing stdio.h and stdint.h .****
>
> ** **
>
> Thanks and best regards,****
>
> Seung-yeon.****
>
> ** **
>
> ** **
>
> 2011/11/23 Anton Korobeynikov <anton at korobeynikov.info>****
>
> Hello****
>
>
> > In file included from helloneon.c:4:
> >
> d:/llvm_projects/llvm-3.0rc4/bin/../lib/clang/3.0/include\arm_neon.h:41:24:
> > error: invalid vector element type 'int32_t' (aka 'long')****
>
> This looks weird, why int32_t is long? Are you using cygwin somehow?
>
> --
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University***
> *
>
> ** **
>
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