[Bug c/38366] New: gcc doesn't call functions that are struct arguments correctly

[m dot b dot lankhorst at gmail dot com]

If a function pointer is part of a struct, and it is called from a function
marked with ms_abi, the 7th argument will be placed wrongly on the stack. It is
placed at 20(%rsp) instead of at (%rsp), which means that programs like wine
will fail.

Testcase attached


-- 
           Summary: gcc doesn't call functions that are struct arguments
                    correctly
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: m dot b dot lankhorst at gmail dot com
 GCC build triplet: x86_64-pc-linux-gnu
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38366