[Bug target/27887] New: vec_init needs to be improved for floating point types

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Take the following example:
typedef __attribute__ ((vector_size (16))) float v4sf;
typedef __attribute__ ((vector_size (16))) int v4si;
v4sf t;
void
foo (float t1)
{
  t =  (v4sf)(v4si){1,1,1,1};
  t+=t;
}
------
There should be no lvx in it but there is currently because VIEW_CONVERT_EXPR
is foldded at the tree level now.


-- 
           Summary: vec_init needs to be improved for floating point types
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          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=27887