[Bug fortran/95186] New: Optimize allocate(..., source=0) or allocate(..., source=[0.0, 0.0, ...]) to use calloc instead of malloc

[burnus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95186

            Bug ID: 95186
           Summary: Optimize allocate(..., source=0) or allocate(...,
                    source=[0.0, 0.0, ...]) to use calloc instead of
                    malloc
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org
  Target Milestone: ---

calloc returns zeroed memory, hence, for "source=0.0" or "source=0" (or the
array equivalent, if ever used), calloc instead of malloc could be used.