[Bug target/39715] New: [cond-optab] extra sign extensions on Thumb

[bonzini at gnu dot org]

/* -O1 -mthumb -march=armv5t  */

struct foo
{
  unsigned b31 : 1;
  unsigned b30 : 1;
  unsigned b29 : 1;
  unsigned b28 : 1;
  unsigned rest : 28;
};
foo(a)
     struct foo a;
{
  return a.b30;
}

should have only one lsl and lsr


-- 
           Summary: [cond-optab] extra sign extensions on Thumb
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bonzini at gnu dot org
OtherBugsDependingO 39714
             nThis:


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39715