CC_REG: "Ian's cc0 replacement machinery", request for stage 2 conceptual approval

[Mark Mitchell]

Hans-Peter Nilsson wrote:
> After synchronizing with Ian Lance Taylor on IRC, I'm in the
> process of implementing the cc0 replacement machinery he
> described here and found at
> <URL:http://gcc.gnu.org/wiki/general%20backend%20cleanup> after
> "Here is a possible approach in which macros are used in the MD
> file readers to avoid the pattern explosion".  I understood
> noone else is working on this.

> What worries me most is that I'll not meet the Stage 1 end of
> the 25:th.  This CC_REG machinery patches would arguably be
> affecting many files and as such be stage 1 material, but
> doesn't at all functionally affect any primary platform (all
> being non-cc0) or ports that still use the cc0 approach.

The fact that you'll not be ready by the end of Stage 1 (technically 
already passed; I'm working on a 4.1 status report) isn't necessarily a 
fatal problem; we can make case-by-case judgements.  But, I do think 
that preference should be given to those projects that were previously 
announced, and that if your changes seem too invasive, it might be 
reasonable to hold them for 4.2.  We shall have to see.

-- 
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com
(916) 791-8304