[Bug middle-end/49721] New: convert_memory_address_addr_space may generate invalid new insns

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49721

           Summary: convert_memory_address_addr_space may generate invalid
                    new insns
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


When convert_memory_address_addr_space is called by
simplify_unary_operation_1, it may generate new insns
if Pmode != ptr_mode.  But new insns aren't allowed
from simplify_unary_operation_1.