https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
Richard Biener changed:
What|Removed |Added
Status|NEW |RESOLVED
Known to work|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
Target Milest
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
Jakub Jelinek changed:
What|Removed |Added
Target Milestone|8.2 |8.3
--- Comment #15 from Jakub Jelinek
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
Jakub Jelinek changed:
What|Removed |Added
Target Milestone|8.0 |8.2
--- Comment #14 from Jakub Jelinek
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
Jeffrey A. Law changed:
What|Removed |Added
Summary|[7/8 Regression] Missed |[7 Regression] Missed
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
Jeffrey A. Law changed:
What|Removed |Added
Target Milestone|7.0 |8.0
--- Comment #7 from Jeffrey A. Law
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
--- Comment #6 from Jeffrey A. Law ---
So I've got a hack that allows me to evaluate the effect of the last example
from c#5. So let's look at how the number of realized jump threads is affected
by the various tweaks I'm playing with:
VRP1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
--- Comment #5 from Jeffrey A. Law ---
More comments. As has been noted, this looks like a case where we need
iteration to fully optimize. However, there are things we can do to improve
VRP's jump threading which should have a direct positive i
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
--- Comment #4 from Jeffrey A. Law ---
More thoughts on how we might approach resolving.
To tackle in the backwards threader I think we need to change the model for how
backwards threading works.
Right now it starts walking up the use-def chain
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
--- Comment #3 from Jeffrey A. Law ---
So I've been pondering this a bit more. Essentially I see two paths forward.
One is to enhance the backwards threader so that it can do more general
lookups/simplifications. I've cobbled together some c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
Jeffrey A. Law changed:
What|Removed |Added
Priority|P3 |P2
Assignee|unassigned at gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
Jeffrey A. Law changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78496
Andrew Pinski changed:
What|Removed |Added
Target Milestone|--- |7.0
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