[PATCH] CodeGen: Devirtualize member calls on classes that are provably final.

[Benjamin Kramer]

On 27.08.2013, at 18:58, John McCall <rjmccall at gmail.com> wrote:

> On Aug 25, 2013, at 10:38 AM, Benjamin Kramer <benny.kra at gmail.com> wrote:
>> Hi rjmccall, rsmith,
>> 
>> The idea is as follows:
>> 1. After CodeGenModule::Release is called we know that the AST is complete and we
>>  can compute which classes with internal linkage have no children.
>> 2. Do a recursive AST visitation to find those classes. We do this lazily on the
>>  first attempt to emit a virtual call.
> 
> On the entire translation unit?  That’ll fully deserialize pre-compiled headers, won’t it?

The current implementation would. I guess it could be limited to only look at classes in the current file without missing anything, hmm.

- Ben