Displaying 5 results from an estimated 5 matches for "canbeomittedfromsymbolt".
2016 Mar 08
11
Deleting function IR after codegen
...i’d really like to know if anyone is fundamentally opposed to this.
I should note, a couple of issues have come up in the prototype.
- llvm::getDISubprogram was walking the function body to find the subprogram. This is trivial to fix as functions now have !dbg on them.
- The AsmPrinter is calling canBeOmittedFromSymbolTable on GlobalValue’s which then walks all their uses. I think this should be done earlier in codegen as an analysis whose results are available to the AsmPrinter.
- BB’s whose addresses are taken, i.e. jump tables, can’t be deleted. Those functions will just keep their IR around so no changes the...
2016 Mar 08
3
Deleting function IR after codegen
...couple of issues have come up in the prototype.
> - llvm::getDISubprogram was walking the function body to find the subprogram. This is trivial to fix as functions now have !dbg on them.
>
> This is definitely worth it, please go ahead and do this.
>
> - The AsmPrinter is calling canBeOmittedFromSymbolTable on GlobalValue’s which then walks all their uses. I think this should be done earlier in codegen as an analysis whose results are available to the AsmPrinter.
>
> I think this makes sense, but I worry about late added GlobalValues during code gen? How would we cope with that? Example: L...
2016 Mar 08
3
Deleting function IR after codegen
...now if anyone is fundamentally opposed to this.
>
> I should note, a couple of issues have come up in the prototype.
> - llvm::getDISubprogram was walking the function body to find the subprogram. This is trivial to fix as functions now have !dbg on them.
> - The AsmPrinter is calling canBeOmittedFromSymbolTable on GlobalValue’s which then walks all their uses. I think this should be done earlier in codegen as an analysis whose results are available to the AsmPrinter.
> - BB’s whose addresses are taken, i.e. jump tables, can’t be deleted. Those functions will just keep their IR around so no change...
2016 May 12
2
Deleting function IR after codegen
...> > > subprogram. This is trivial to fix as functions now have !dbg
> > > > on
> > > > them.
> > >
> >
>
> > > This is definitely worth it, please go ahead and do this.
> >
>
> > > > - The AsmPrinter is calling canBeOmittedFromSymbolTable on
> > > > GlobalValue’s which then walks all their uses. I think this
> > > > should
> > > > be done earlier in codegen as an analysis whose results are
> > > > available to the AsmPrinter.
> > >
> >
>
> > > I think...
2016 Mar 08
2
Deleting function IR after codegen
...fundamentally opposed to this.
>>
>> I should note, a couple of issues have come up in the prototype.
>> - llvm::getDISubprogram was walking the function body to find the subprogram. This is trivial to fix as functions now have !dbg on them.
>> - The AsmPrinter is calling canBeOmittedFromSymbolTable on GlobalValue’s which then walks all their uses. I think this should be done earlier in codegen as an analysis whose results are available to the AsmPrinter.
>> - BB’s whose addresses are taken, i.e. jump tables, can’t be deleted. Those functions will just keep their IR around so no ch...