Bug 19466 (bitfield) - [meta-bug] bit-fields are non optimal
Summary: [meta-bug] bit-fields are non optimal
Status: NEW
Alias: bitfield
Product: gcc
Classification: Unclassified
Component: middle-end (show other bugs)
Version: 4.0.0
: P2 enhancement
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
Keywords: meta-bug, missed-optimization
Depends on: 15596 20671 42972 45274 48696 51428 55658 56924 66364 66391 67731 68360 71509 80770 81161 83784 93042 94086 95097 96172 97588 99082 99918 99919 101705 103457 103967 106076 107601 109637 109992 110613 111743 113395 117148 118267 336 15256 15826 18008 18029 18030 18031 18038 18041 19331 22156 22563 45214 97747
Blocks:
  Show dependency tree / graph
 
Reported: 2005-01-16 01:31 UTC by Andrew Pinski
Modified: 2025-01-14 21:35 UTC (History)
3 users (show)

See Also:
Host:
Target:
Build:
Known to work:
Known to fail:
Last reconfirmed: 2007-07-01 00:19:47

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Andrew Pinski 2005-01-16 01:31:47 UTC 
Just a place holder for referencing all of the missed-optimizations with bit-fields.
Comment 1 Andrew Pinski 2005-01-16 01:36:06 UTC 
CCing kazu because he opened most of the bugs.

Confirmed.
Comment 2 Steven Bosscher 2006-04-27 19:10:13 UTC 
Patches addressing some of the issues:
http://gcc.gnu.org/ml/gcc-patches/2006-04/msg00969.html
http://gcc.gnu.org/ml/gcc-patches/2006-04/msg01049.html

I'm linking them from here for reference.
Comment 3 Andrew Pinski 2021-07-26 23:48:17 UTC 
Mine but I suspect this won't be until next year.
Comment 4 Andrew Pinski 2024-07-30 22:33:00 UTC 
No longer working on bitfields optimization. Maybe in a few years I will be again but not today.