https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78408
--- Comment #13 from GCC Commits ---
The trunk branch has been updated by Andrew Pinski :
https://gcc.gnu.org/g:94f275432f7ea4781ec7c05fa9d1d81ef6cb3fc1
commit r16-22-g94f275432f7ea4781ec7c05fa9d1d81ef6cb3fc1
Author: Andrew Pinski
Date: Thu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78408
--- Comment #12 from Jakub Jelinek ---
Author: jakub
Date: Fri Dec 16 15:57:43 2016
New Revision: 243753
URL: https://gcc.gnu.org/viewcvs?rev=243753&root=gcc&view=rev
Log:
PR c/78408
* tree-ssa-ccp.c: Include tree-dfa.h.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78408
--- Comment #11 from Jakub Jelinek ---
(In reply to Richard Biener from comment #10)
> (In reply to Jakub Jelinek from comment #9)
> > Note in the testcase a = (struct buf) {}, b = (struct buf) {} generates
> > significantly more efficient code t
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78408
--- Comment #10 from Richard Biener ---
(In reply to Jakub Jelinek from comment #9)
> Note in the testcase a = (struct buf) {}, b = (struct buf) {} generates
> significantly more efficient code than a = b = (struct buf) {} - the former
> is 2x me
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78408
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #9
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78408
Markus Trippelsdorf changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78408
--- Comment #7 from joseph at codesourcery dot com ---
I can't reproduce this with recent GCC 6 branch. Possibly a duplicate of
bug 72747?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78408
--- Comment #6 from Marc Glisse ---
I don't think this is related to the loop, a = b = (struct buf) {} loses the
assignment to b even if you put it alone on its line.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78408
Markus Trippelsdorf changed:
What|Removed |Added
Summary|Aggressive optimization of |C loop initial declarations
