Mark Mitchell - GCC 4.2 (original) (raw)

This is the mail archive of the gcc@gcc.gnu.orgmailing list for the GCC project.

• From: Mark Mitchell
• To: gcc mailing list
• Date: Fri, 18 Nov 2005 22:21:52 -0800
• Subject: GCC 4.2

I've reviewed the GCC 4.2 projects on the Wiki.

It certainly looks like some exciting stuff is in the pipeline.

For 4.2, I'm not going to try to be too fine-grained about scheduling the individual projects; in 4.1, I don't think I added much value by doing that. Also, a lot of the project pages didn't have very precise data about availability.

So, all I did here is separate them into Stage 1 and Stage 2 contributions. Even then, I don't want to forbid things listed under Stage 2 from going in under Stage 1, if the Stage 2 things are ready, but let's give priority to the Stage 1 things. I put things into Stage 1 that seemed either (a) most risky or (b) most ready. I'll readily concede that I may have miscategorized, and it's OK with me if people just treat the categorization as an informal guideline.

Rather than try to make a fine-grained schedule, I'd like to ask that we just try to cooperate with each other to avoid destabilizing the mainline unduly, even through Stage 1. In particular:

• Please announce major merges of new functionality 24 hours before the actual merge

• Please allow 24 hours after a major merge before the next major merge

• Please refrain from a major merge if we're currently experiencing serious stability problems that are being resolved from the previous merge.

As of now, we're in GCC 4.2 Stage 1!

==

Stage 1 Projects

• Decimal Floating Point

• GOMP: library, middle-end, C

• IPA cleanups

• Load partial redundancy elimination

• New tree reassociation pass

• Remove old loop optimizer

• Section Anchor Optimisations

• Sign Extension Removal

• Support for IA-64 speculation

• Vectorization Enhancements, Part 1

Stage 2 Projects

• Array references on pointers

• GOMP: C++, Fortran

• Induction variable optimizations cleanups

• IPA on SSA Form

• Omega data dependence test

• Record GCC command line switches in object files

• Replacements for CSE path following

• Replace backend dataflow

• Response files

• Sub-Target specific math routines library

• Vectorization Enhancements, Parts 2 and onwards.

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

• Follow-Ups:
  • Re: GCC 4.2
    * From: Dueway Qi