[Bug debug/54773] New: no debug info generated for rvalue reference

[chihin.ko at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54773



             Bug #: 54773

           Summary: no debug info generated for rvalue reference

    Classification: Unclassified

           Product: gcc

           Version: 4.6.2

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: debug

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: chihin...@oracle.com





Created attachment 28318

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28318

compileable c++ test case and dwarf dump



for c++0x feature rvalue reference, g++ should generate

DW_TAG_rvalue_reference_type, g++ generate DW_TAG_reference_type instead:



see attachment for test cases: a.out.dw 

shows debug info for function "void foo(int&& ii)" are





< 2><0x00000992>      DW_TAG_formal_parameter

                        DW_AT_name                  "ii"

                        DW_AT_decl_file             0x00000001

/net/benjamin2/export/ws/jeanko/ws/dbx_test/bugid/7189973/intel-Linux/t.cc

                        DW_AT_decl_line             0x0000001b

                        DW_AT_type                  <0x000009a0>

                        DW_AT_location              DW_OP_fbreg -24

< 1><0x000009a0>    DW_TAG_const_type

                      DW_AT_type                  <0x000009a5>

< 1><0x000009a5>    DW_TAG_reference_type

                      DW_AT_byte_size             0x00000008

                      DW_AT_type                  <0x00000062>