[LLVMdev] Getting rid of tabs in LLVM's assembly output?
chandlerc at google.com
Tue Dec 18 15:39:07 PST 2012
On Tue, Dec 18, 2012 at 3:36 PM, Tim Northover <t.p.northover at gmail.com>wrote:
> > > Maybe it's naive, but I would expect it to be easy for each backend to
> > > expose a constant N which is the length of the longest mnemonic, and
> > > for the printer to pad to N+1 or N+2….
> > That would probably work for X86, but other targets (ARM in particular)
> > often have operands which are printed/parsed as suffices on the mnemonic
> > itself. Because of these, the backend does not statically know the
> > potential string-of-stuff-before-the-tab.
> Are you thinking of something beyond the ".F32.I16" suffixes (for
> example)? If not, the result may not be TableGeneratable, but is
> probably conservatively known as "8 + natural mnemonic length" for
> these purposes.
The great thing is, if its close enough, it doesn't matter if there exist
corner cases that are formatted less well.
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