[LLVMdev] AsmPrinter behavior

[Nathan Jeffords]

On Fri, May 7, 2010 at 12:58 PM, Chris Lattner <clattner at apple.com> wrote:

>
> On May 7, 2010, at 11:42 AM, Nathan Jeffords wrote:
>
> $ llc t.ll -o - -mtriple=i386-apple-darwin10
>>> .section __TEXT,__text,regular,pure_instructions
>>> .zerofill __DATA,__bss,_tst1,4,0        ## @tst1
>>> .section __DATA,__data
>>> _tst2:                                  ## @tst2
>>> .ascii  "\000\001\002\003"
>>>
>>
>> I think we should have an 'EmitZeroFill()' and 'EmitASCII()' OutStream
>> methods, the latter to deal with dllexports in '
>> lib/Target/X86/AsmPrinter/AsmPrinter.cpp:569'.
>>
>> We also need to sort out COFF TLOF, and get rid of the directive stuff.
>>
>>
>> It looks to me that you should have an Emit method for the .scl, .def,
>> .type, .endef directives.  One callback each.
>>
>> -Chris
>>
>
> I've had included a EmitCOFFSymbolDef in MCStreamer to replace the
> EmitRawText that was handling this, seem to me it would be easier to have a
> single call given the restrictions on their use.
>
>
> Sure, whatever you guys think is best.  It is also very reasonable to add
> new enums to MCSymbolAttr if EmitSymbolAttribute is the right callback for
> these.
>
> -Chris
>

I could see that working for the object file exporter, but I think it would
be tricky to get the write assembly output.

-Nathan
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