[Bug tree-optimization/23109] [4.1 Regression] compiler generates wrong code leading to spurious division by zero with -funsafe-math-optimizations (instead of -ftrapping-math)

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |minor
          Component|c                           |tree-optimization
            Summary|compiler generates wrong    |[4.1 Regression] compiler
                   |code leading to spurious    |generates wrong code leading
                   |division by zero            |to spurious division by zero
                   |                            |with -funsafe-math-
                   |                            |optimizations (instead of -
                   |                            |ftrapping-math)
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23109