http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49234
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.5/4.6/4.7/4.8 |[4.6/4.7/4.8 Regression]
|Regression] |-Wstrict-overflow gives
|-Wstrict-overflow gives |obviously unwarranted
|obviously unwarranted |warning
|warning |
--- Comment #17 from Richard Biener <rguenth at gcc dot gnu.org> 2013-03-06
08:55:46 UTC ---
The patch is a hack. Comparing SSA_NAME_VAR is very fragile, nothing but
debug info cares about SSA_NAME_VAR.
I can't see why constant PHI arguments should be in any way special - in
fact this is just the very usual induction variable PHI with a constant
initial value ...
