[Bug c++/87405] New: Implement -Wliteral-conversion

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87405

            Bug ID: 87405
           Summary: Implement -Wliteral-conversion
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
            Blocks: 87403
  Target Milestone: ---

Also coming from LLVM, it found a real issue in GCC:

gcc/ipa-fnsummary.c:2745:54:Value Conversion Issue: implicit conversion from
'double' to 'int64_t' (aka 'long') changes value from 0.99 to 0:
-Wliteral-conversion

I would consider adding that to GCC as well.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87403
[Bug 87403] Issues that suggest a new warning