[Bug target/28207] New: 128-bit IBM long double misaligned on stack

[amodra at bigpond dot net dot au]

long doubles are only aligned to word boundaries when passed via the stack (ie.
to a function that uses more than 8 fp regs for other parameters).  The va_arg
support expects long doubles to be double word aligned, resulting in a mismatch
between caller and callee for variable argument functions.


-- 
           Summary: 128-bit IBM long double misaligned on stack
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: amodra at bigpond dot net dot au
GCC target triplet: powerpc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28207