Backport 64 bit multiply, divide, and mod improvements
Registered by
Michael Hope
Richard Henderson has done some improvements to longlong.h which ends up improving the 64 bit routines in libgcc.
Most operators already have patterns but those like clz and div that don't will get faster.
Also enable for Thumb-2.
Blueprint information
- Status:
- Complete
- Approver:
- Michael Hope
- Priority:
- Medium
- Drafter:
- Michael Hope
- Direction:
- Approved
- Assignee:
- Michael Hope
- Definition:
- Approved
- Series goal:
- Accepted for 4.6
- Implementation:
-
Implemented
- Milestone target:
-
4.7-2012.04
- Started by
- Michael Hope
- Completed by
- Michael Hope
Related branches
Related bugs
Sprints
Whiteboard
Meta:
Headline: backport longlong.h improvement
Acceptance: clz and div operations got faster after the port
(?)
