[LLVMdev] live variable analysis

[Jakob Stoklund Olesen]

On Mar 2, 2011, at 8:23 AM, drizzle drizzle wrote:

> Hi
>   As I understand live variable analysis will set the def/kill
> properties of operands. In that case, is it still needed to set the
> kill flags when possible  during lowering?

Are any passes before register allocation using the kill flags?

LiveVariables is not run in the -O0 pipeline. The fast register allocator should work fine without kill flags.

/jakob