llvm dev - Dec 2012 - [LLVMdev] How to enable cbe as a supported target?

Hi all,

I met an error when I run the llc command to transform a bitcode file to C
code (source to source):
$ llc -march=c -o foo.c foo.ll
However, it said "*llc: error: invalid target 'c'.*" I checked
the 'llc
--version' only to find that there is no *c* as target. The *cpp* was
there, which makes calls against the LLVM C++ API. But that's not what I
want.

I configured my LLVM with default options, thus I supposed the 'cbe'
should
have been enabled as a supported target. Nevertheless, I tried to enable it
explicitly:
$ ../configure --enable-targets=cbe
It occurred the error: "*configure: error: Unrecognized target cbe*"

Any clue?

Thank you.
-- 
Mingliang LIU (刘明亮 in Chinese)

PACMAN Group,  Dept. of Computer Science & Technology
Tsinghua University, Beijing 100084, China
Email: liuml07 at mails.tsinghua.edu.cn
Homepage: http://pacman.cs.tsinghua.edu.cn/~liuml07/
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The C Backend was  remove in 3.1
(http://llvm.org/releases/3.1/docs/ReleaseNotes.html):

"Major Changes and Removed Features
...
The C backend has been removed. It had numerous problems, to the point
of not being able to compile any nontrivial program."

On Wed, Dec 5, 2012 at 10:00 AM, Mingliang LIU <liuml07 at gmail.com>
wrote:
> Hi all,
>
> I met an error when I run the llc command to transform a bitcode file to C
> code (source to source):
> $ llc -march=c -o foo.c foo.ll
> However, it said "llc: error: invalid target 'c'." I
checked the 'llc
> --version' only to find that there is no c as target. The cpp was
there,
> which makes calls against the LLVM C++ API. But that's not what I want.
>
> I configured my LLVM with default options, thus I supposed the
'cbe' should
> have been enabled as a supported target. Nevertheless, I tried to enable it
> explicitly:
> $ ../configure --enable-targets=cbe
> It occurred the error: "configure: error: Unrecognized target
cbe"
>
> Any clue?
>
> Thank you.
> --
> Mingliang LIU (刘明亮 in Chinese)
>
> PACMAN Group,  Dept. of Computer Science & Technology
> Tsinghua University, Beijing 100084, China
> Email: liuml07 at mails.tsinghua.edu.cn
> Homepage: http://pacman.cs.tsinghua.edu.cn/~liuml07/
>
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>

Hi Arnold,

Thank you. I googled but missed the release notes.

Regards.


On Thu, Dec 6, 2012 at 12:13 AM, Arnold Schwaighofer <
arnold.schwaighofer at gmail.com> wrote:
> The C Backend was  remove in 3.1
> (http://llvm.org/releases/3.1/docs/ReleaseNotes.html):
>
> "Major Changes and Removed Features
> ...
> The C backend has been removed. It had numerous problems, to the point
> of not being able to compile any nontrivial program."
>
> On Wed, Dec 5, 2012 at 10:00 AM, Mingliang LIU <liuml07 at gmail.com>
wrote:
> > Hi all,
> >
> > I met an error when I run the llc command to transform a bitcode file
to
> C
> > code (source to source):
> > $ llc -march=c -o foo.c foo.ll
> > However, it said "llc: error: invalid target 'c'." I
checked the 'llc
> > --version' only to find that there is no c as target. The cpp was
there,
> > which makes calls against the LLVM C++ API. But that's not what I
want.
> >
> > I configured my LLVM with default options, thus I supposed the
'cbe'
> should
> > have been enabled as a supported target. Nevertheless, I tried to
enable
> it
> > explicitly:
> > $ ../configure --enable-targets=cbe
> > It occurred the error: "configure: error: Unrecognized target
cbe"
> >
> > Any clue?
> >
> > Thank you.
> > --
> > Mingliang LIU (刘明亮 in Chinese)
> >
> > PACMAN Group,  Dept. of Computer Science & Technology
> > Tsinghua University, Beijing 100084, China
> > Email: liuml07 at mails.tsinghua.edu.cn
> > Homepage: http://pacman.cs.tsinghua.edu.cn/~liuml07/
> >
> >
> > _______________________________________________
> > LLVM Developers mailing list
> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> >
>


-- 
Mingliang LIU (刘明亮 in Chinese)

PACMAN Group,  Dept. of Computer Science & Technology
Tsinghua University, Beijing 100084, China
Email: liuml07 at mails.tsinghua.edu.cn
Homepage: http://pacman.cs.tsinghua.edu.cn/~liuml07/
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