llvm dev - Nov 2015 - basic block labels in assembly (.s file)

Hi, All,

If I use 'llc' to generate .s file, I notice usually the basic block
labels
are like ".LBB_number:". Is there a way that I can change the labels
to
other names, for example,  to ".MyLabel_number:" ? I think this should
be
related to AsmPrinter, but I cannot narrow down to certain specific source
code.

Any help and suggestion is appreciated.

Regards,

Xiangyang
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Hi,

Does this need to be done in AsmPrinter?

Maybe it's possible to script this. In python, it could be:

with open(Path, 'rb') as F:
    re.subn(r'\.LBB_(\d+)', lambda M: '.MyLabel_' + M.group(1),
F.read())

vedant
> On Nov 28, 2015, at 6:48 PM, Xiangyang Guo via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
> 
> Hi, All,
> 
> If I use 'llc' to generate .s file, I notice usually the basic
block labels are like ".LBB_number:". Is there a way that I can change
the labels to other names, for example,  to ".MyLabel_number:" ? I
think this should be related to AsmPrinter, but I cannot narrow down to certain
specific source code.
> 
> Any help and suggestion is appreciated.
> 
> Regards,
> 
> Xiangyang
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev

On Sat, Nov 28, 2015 at 09:48:53PM -0500, Xiangyang Guo via llvm-dev
wrote:
> Hi, All,
> 
> If I use 'llc' to generate .s file, I notice usually the basic
block labels
> are like ".LBB_number:". Is there a way that I can change the
labels to
> other names, for example,  to ".MyLabel_number:" ? I think this
should be
> related to AsmPrinter, but I cannot narrow down to certain specific source
> code.
> 
The '.L' prefix comes from the value of your target's
MCAsmInfo::PrivateLabelPrefix.
This is configurable.

-Tom

> Any help and suggestion is appreciated.
> 
> Regards,
> 
> Xiangyang
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev