[LLVMdev] Library Call Initialization

[Renato Golin]

For reference, this is the change:

http://llvm.org/viewvc/llvm-project?view=revision&revision=209089

It follows the style that we used in the cost model, and I think it's
a good one for the targets that have such a heavily different RT ABI.

We could even use some C++11 stuff to declare and set on the same statement.

cheers,
--renato

On 18 May 2014 21:07, Saleem Abdulrasool <compnerd at compnerd.org> wrote:
> Most targets in LLVM have some set of library calls.
>
> ARM has a particularly large set of library calls that need to be
> initialized along with additional information on the calling convention and
> predication of the calls.  Hexagon too has a significant number of calls
> that get setup, followed closely by SPARC.  The other targets seem to not
> have as many library calls that need to be setup when the target is being
> setup.
>
> I made a change to the ARM backend to make the library call setup be more
> table driven, and Renato pointed out that this might be something that might
> be more useful across the other targets.
>
> We could make this more generic and handle it more similar to the vector
> cost tables if the general consensus is that this is something sufficiently
> useful on all targets to unify.
>
> --
> Saleem Abdulrasool
> compnerd (at) compnerd (dot) org