[Bug tree-optimization/40635] bogus name and location in 'may be used uninitialized' warning

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40635

--- Comment #3 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
This somehow got worse. Now we only warn with -O1 or -Os but not with -O2 or
-O3.