[Bug target/77924] New: -mfloat128-type change broke AIX

[meissner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77924

            Bug ID: 77924
           Summary: -mfloat128-type change broke AIX
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: meissner at gcc dot gnu.org
  Target Milestone: ---

The change to split -mfloat128 into -mfloat128-type and -mfloat128 broke AIX,
due to the fact that AIX defaults to long doubles being 64-bit, and the
compiler created a type for __ibm128, even though it does not have 128-bit long
double support.