[llvm-commits] [patch][lto] Use MC to scan for symbol definitions and uses

[Rafael Ávila de Espíndola]

On 2011-02-28 13:54, Rafael Avila de Espindola wrote:
> I have updated the patch to also create llvm.compiler.used with the uses
> it finds in inline assembly. This lets me build Firefox without moving
> the assembly to a .s file *or* adding __attribute__((used)) :-)

I incremented the patch a bit more. It now

*) Creates llvm.compiler.used, so that it is not necessary for the user
to add __attribute__((used)).
*) Handles IL uses that map to local asm definitions
*) Correctly mask symbols as defined (sets the section)

An unexpected but really nice benefit of this is that I can link firefox
with LTO on Darwin :-)

I am now confident that this is a strict superset of the previous
heuristic. Is it OK for 2.9?

Cheers,
Rafael
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