[Bug c/80154] New: sizeof(long double) == 16 even with -mlong-double-80

[daniel.gutson at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80154

            Bug ID: 80154
           Summary: sizeof(long double) == 16 even with -mlong-double-80
           Product: gcc
           Version: 6.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: daniel.gutson at intel dot com
  Target Milestone: ---

On a x86_64 linux machine, both sizeof(long double) and sizeof(__float80)
return 16, despite specifying -mlong-double-80 (x86 gcc). 
Other options that did not change the result: 
    -std=c99 (despite -m is backend), 
    -msoft-float