[Bug tree-optimization/64739] Spurious "array subscript is above array bounds" warning

2015-01-28 Thread rth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64739

Richard Henderson  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #3 from Richard Henderson  ---
Yes indeed, this does seem to have been fixed along with 64277.

*** This bug has been marked as a duplicate of bug 64277 ***


[Bug tree-optimization/64739] Spurious "array subscript is above array bounds" warning

2015-01-26 Thread izamyatin at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64739

Igor Zamyatin  changed:

   What|Removed |Added

 CC||izamyatin at gmail dot com

--- Comment #2 from Igor Zamyatin  ---
Looks quite similar to PR64277


[Bug tree-optimization/64739] Spurious "array subscript is above array bounds" warning

2015-01-23 Thread rth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64739

Richard Henderson  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2015-01-23
 CC||rth at gcc dot gnu.org
 Ever confirmed|0   |1

--- Comment #1 from Richard Henderson  ---
This seems to be related to induction variable elimination in some way,
because the VR for the offending unrolled iteration is [4,10].

Which is clearly silly.