[Bug target/35866] New: Vector load/store from a packed struct does not work (without -mstrict-align)

[pinskia at gcc dot gnu dot org]

Testcase:
#define vector __attribute__((vector_size(16) ))
#pragma pack(push, r1, 1)

struct a
{
    char t;
  vector float f;
};
#pragma pack(push, r1, 1)

vector float f(struct a * b, vector float a)
{
  return b->f = a;
}
---- CUT ---
We use directly a stvx instruction here and this will store in the incorrect
position.


-- 
           Summary: Vector load/store from a packed struct does not work
                    (without -mstrict-align)
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
GCC target triplet: powerpc*-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35866