https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
Daniel Gutson changed:
What|Removed |Added
CC||daniel.gutson@tallertechnol
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #17 from Joost VandeVondele Joost.VandeVondele at mat dot ethz.ch
---
(In reply to Marc Glisse from comment #16)
Done. Joost, feel free to add your testcase from comment #3 if you want to
(I can't write a hello world in fortran so
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
Joost VandeVondele Joost.VandeVondele at mat dot ethz.ch changed:
What|Removed |Added
Status|RESOLVED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #19 from Marc Glisse glisse at gcc dot gnu.org ---
(In reply to Joost VandeVondele from comment #17)
Thanks Marc, I don't have write access, but I can try to dg-ify the testcase
from comment #3.. however, first test, it still seems
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #20 from Marc Glisse glisse at gcc dot gnu.org ---
(In reply to Joost VandeVondele from comment #18)
The following now fails, so'll reopen this PR. It is at least related to
zeroing pvec twice in a row, and doesn seem to happen if I
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #21 from Marc Glisse glisse at gcc dot gnu.org ---
I am testing the following:
--- tree-ssa-strlen.c(revision 211967)
+++ tree-ssa-strlen.c(working copy)
@@ -1646,20 +1646,22 @@ handle_builtin_memset (gimple_stmt_itera
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #22 from Marc Glisse glisse at gcc dot gnu.org ---
Author: glisse
Date: Wed Jun 25 12:27:13 2014
New Revision: 211977
URL: https://gcc.gnu.org/viewcvs?rev=211977root=gccview=rev
Log:
2014-06-25 Marc Glisse marc.gli...@inria.fr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
Marc Glisse glisse at gcc dot gnu.org changed:
What|Removed |Added
Status|REOPENED|RESOLVED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #15 from Marc Glisse glisse at gcc dot gnu.org ---
Author: glisse
Date: Tue Jun 24 18:50:00 2014
New Revision: 211956
URL: https://gcc.gnu.org/viewcvs?rev=211956root=gccview=rev
Log:
2014-06-24 Marc Glisse marc.gli...@inria.fr
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
Marc Glisse glisse at gcc dot gnu.org changed:
What|Removed |Added
Status|NEW |RESOLVED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
Marc Glisse glisse at gcc dot gnu.org changed:
What|Removed |Added
Attachment #30981|0 |1
is
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #13 from Marc Glisse glisse at gcc dot gnu.org ---
(In reply to Richard Biener from comment #12)
Yes, the fact that the return value p cannot be equal to q inside the
function is not exposable.
Richard fixed this in PR 50262, yay!
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
Richard Biener rguenth at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
Joost VandeVondele Joost.VandeVondele at mat dot ethz.ch changed:
What|Removed |Added
CC|
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #4 from Marc Glisse glisse at gcc dot gnu.org ---
(In reply to Richard Biener from comment #2)
(In reply to Marc Glisse from comment #1)
This is a very limited version of this optimization. It is in
simplify_builtin_call, so only
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #5 from Richard Biener rguenth at gcc dot gnu.org ---
(In reply to Marc Glisse from comment #4)
(In reply to Richard Biener from comment #2)
(In reply to Marc Glisse from comment #1)
This is a very limited version of this
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #6 from Marc Glisse glisse at gcc dot gnu.org ---
(In reply to Richard Biener from comment #5)
We have walk_aliased_vdefs for this. Basically the first callback
you receive has to be the malloc, otherwise there is an aliasing
stmt
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #7 from Marc Glisse glisse at gcc dot gnu.org ---
(In reply to Richard Biener from comment #5)
We have walk_aliased_vdefs for this. Basically the first callback
you receive has to be the malloc, otherwise there is an aliasing
stmt
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #8 from Marc Glisse glisse at gcc dot gnu.org ---
Created attachment 31003
-- http://gcc.gnu.org/bugzilla/attachment.cgi?id=31003action=edit
walk_aliased_vdefs experiment
Incomplete patch I used for my previous comment.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57742
--- Comment #1 from Marc Glisse glisse at gcc dot gnu.org ---
Created attachment 30981
-- http://gcc.gnu.org/bugzilla/attachment.cgi?id=30981action=edit
basic patch
This is a very limited version of this optimization. It is in
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