[Bug objc/45878] New: Can't compile even a trivial ObjC program with -fexceptions -O2

[nicola at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45878

           Summary: Can't compile even a trivial ObjC program with
                    -fexceptions -O2
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: objc
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: nic...@gcc.gnu.org


Created attachment 21953
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=21953
Test case that does not compile with -fexceptions -O2

The following testcase:

#import <objc/objc.h>
#import <objc/NXConstStr.h>

void function (void)
{
  if ([@"strings" isEqual: nil])
    {
      ;
    }
}

fails to compile if you compile it with -O2 -fexceptions.

gcc gimple_call.m -lobjc -c -O2 -fexceptions
gimple_call.m: In function ‘function’:
gimple_call.m:10:1: error: invalid conversion in gimple call
BOOL

struct objc_object *

# .MEM_7 = VDEF <.MEM_6>
D.3351_3 = D.3350_1 (&_OBJC_INSTANCE_0, &_OBJC_SELECTOR_TABLE, 0B);

gimple_call.m:10:1: internal compiler error: verify_stmts failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Thanks