[LLVMdev] Contants generation - proposal

[Tim Northover]

Hi Elena,

> (2) Proposal
> Define one more Code Model, let's say "LargeNearConst", which will allow to put constants in .text.

Isn't that a little heavy-handed? The large model only requires the
less efficient access for symbols we can't control, and in fact x86
still uses pc-relative conditional branches within a function so it
can't pretend to support a single function >2GB in code size even now.

I think that the improved behaviour for consts should be acceptable in
the large model. But that's just me.

> I'd like to hear people's opinion. Will it help other targets? I'm ready to send a patch.

An analogous improvement would be useful for AArch64, which means that
if the new model *is* justified it would probably be useful there too.

Cheers.

Tim.