[LLVMdev] llvm register reload/spilling around calls

[Evan Cheng]

This is something we want to do. But it turns out to be more complicated since it touches a lot of code.

My guess is we'll implement this sometime during the first half of next year in part to implement cold_cc.

Evan

On Oct 20, 2010, at 12:33 PM, Anton Korobeynikov wrote:

>> The simplest way would probably be to add separate X86ISD opcodes for
>> each desired set of call-clobbered registers.
> Sounds really gross... Maybe it will be better just to teach codegen
> to query single place for the set of call-clobbered registers?
> 
> -- 
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University
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