https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
Jiu Fu Guo changed:
What|Removed |Added
Resolution|--- |FIXED
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
Alan Modra changed:
What|Removed |Added
Status|ASSIGNED|NEW
URL|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
--- Comment #7 from Alan Modra ---
(In reply to Peter Bergner from comment #5)
> Alan, I think you pushed some changes to help with 1) above, correct?
> Is there more to do for 1)?
Possibly, I haven't looked at what needs to be done (if
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
--- Comment #6 from Segher Boessenkool ---
It certainly would be nice to improve this :-) It won't help most code
very much -- how often do two-word values happen at all -- but we have
to revisit how all this is decided anyway (for prefixed
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
--- Comment #5 from Peter Bergner ---
(In reply to Alan Modra from comment #3)
> There are two parts to fixing this PR.
> 1) We can do better in the sequences generated for some constants.
> 2) rs6000_rtx_costs needs to be accurate, so that
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
--- Comment #4 from Nicholas Piggin ---
(In reply to Alan Modra from comment #3)
> There are two parts to fixing this PR.
> 1) We can do better in the sequences generated for some constants.
> 2) rs6000_rtx_costs needs to be accurate, so that
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
--- Comment #3 from Alan Modra ---
There are two parts to fixing this PR.
1) We can do better in the sequences generated for some constants.
2) rs6000_rtx_costs needs to be accurate, so that expensive constants are put
in memory and stay there
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
Alan Modra changed:
What|Removed |Added
CC||amodra at gmail dot com
--- Comment #2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
--- Comment #1 from Alan Modra ---
Created attachment 48146
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48146=edit
teach gcc more two insn sequences for constants
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94393
Alan Modra changed:
What|Removed |Added
Ever confirmed|0 |1
Assignee|unassigned at gcc dot
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