[Bug target/24436] New: (subreg:V4SF (reg:SF) 0) should be invalid RTL, happens for -mfp-math=sse

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

>From emit-rtl.c:
  /* ??? x86 sse code makes heavy use of *paradoxical* vector subregs,
     i.e. (subreg:V4SF (reg:SF) 0).  This surely isn't the cleanest way to
     represent this.  It's questionable if this ought to be represented at
     all -- why can't this all be hidden in post-reload splitters that make
     arbitrarily mode changes to the registers themselves.  */


-- 
           Summary: (subreg:V4SF (reg:SF) 0) should be invalid RTL, happens
                    for -mfp-math=sse
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
GCC target triplet: i?86-*-*, x86_64-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24436