[Bug fortran/45676] Move array assignments out of loop
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45676 Thomas Koenig changed: What|Removed |Added Status|WAITING |RESOLVED Resolution|--- |DUPLICATE --- Comment #6 from Thomas Koenig --- Closing as duplicate. *** This bug has been marked as a duplicate of bug 30409 ***
[Bug fortran/45676] Move array assignments out of loop
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45676 Dominique d'Humieres changed: What|Removed |Added Status|UNCONFIRMED |WAITING Last reconfirmed||2015-10-30 Ever confirmed|0 |1 --- Comment #5 from Dominique d'Humieres --- > Ha! I knew I have seen this before. Dupe of pr30409? It looks so.
[Bug fortran/45676] Move array assignments out of loop
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45676 Daniel Franke dfranke at gcc dot gnu.org changed: What|Removed |Added CC||dfranke at gcc dot gnu.org --- Comment #4 from Daniel Franke dfranke at gcc dot gnu.org 2010-12-27 01:22:56 UTC --- Ha! I knew I have seen this before. Dupe of #30409?
[Bug fortran/45676] Move array assignments out of loop
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45676
--- Comment #3 from Thomas Koenig tkoenig at gcc dot gnu.org 2010-09-30
21:28:22 UTC ---
(In reply to comment #2)
We can't hoist invariant control flow.
Is this not possible, not desirable, or both?
In C, you could (in principle) also hoist
for (i=0; i10; i++) {
for (j=0; j10; j++)
a[j] = j
/* Terms using a, no redefinition of a, no alias etc. */
}
Also print *,c is surely thought
to be an escape point for c and thus may clobber it.
Yes, PR 20165...
I'd rate this impossible to do for the middle-end (and generally not worth
the hassle to implement). Better fix your sources ;)
Well, if somebody does FORmula TRANslation and doesn't think about
this, there is not reason not to help him :-)
[Bug fortran/45676] Move array assignments out of loop
--- Comment #1 from ubizjak at gmail dot com 2010-09-15 06:40 --- Related to PR42108 and PR45223. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45676
[Bug fortran/45676] Move array assignments out of loop
--- Comment #2 from rguenth at gcc dot gnu dot org 2010-09-15 09:47 --- We can't hoist invariant control flow. Also print *,c is surely thought to be an escape point for c and thus may clobber it. I'd rate this impossible to do for the middle-end (and generally not worth the hassle to implement). Better fix your sources ;) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45676
