[Bug tree-optimization/55524] New: If fnma exists but not fms, convert_mult_to_fma should prefer to former over the latter.

[amylaar at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55524



             Bug #: 55524

           Summary: If fnma exists but not fms, convert_mult_to_fma should

                    prefer to former over the latter.

    Classification: Unclassified

           Product: gcc

           Version: 4.8.0

            Status: UNCONFIRMED

          Severity: enhancement

          Priority: P3

         Component: tree-optimization

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: amyl...@gcc.gnu.org





The attached patch saves a negation when expanding fnma for targets like

Epiphany.