This example came from the gdb list:

#include "stdio.h"
class Blah
{
    public:
        Blah(): mFlag(0) {}
        void setFlag( int value ) {
            mFlag = value;
        }
        void printFlag() {
            printf( "Flag value is %d\n", mFlag );
        }
    private:
        int mHugeArray[0x08000001];
        int mFlag;
};

int main( int argc, char* argv[] )
{
    Blah* foo = new Blah();
    foo->setFlag(1);
    foo->printFlag();
    return 0;
}


I compiled this using today's svn trunk g++.
Then readelf shows:

 <2><8e>: Abbrev Number: 7 (DW_TAG_member)
    <8f>   DW_AT_name        : (indirect string, offset: 0x9f): mHugeArray      
    <93>   DW_AT_decl_file   : 1        
    <94>   DW_AT_decl_line   : 13       
    <95>   DW_AT_type        : <0xf2>   
    <99>   DW_AT_data_member_location: 2 byte block: 23 0       (DW_OP_plus_uconst: 0)
    <9c>   DW_AT_accessibility: 3       (private)
 <2><9d>: Abbrev Number: 7 (DW_TAG_member)
    <9e>   DW_AT_name        : (indirect string, offset: 0x0): mFlag    
    <a2>   DW_AT_decl_file   : 1        
    <a3>   DW_AT_decl_line   : 14       
    <a4>   DW_AT_type        : <0x53>   
    <a8>   DW_AT_data_member_location: 2 byte block: 23 0       (DW_OP_plus_uconst: 0)
    <ab>   DW_AT_accessibility: 3       (private)


Both fields the same DW_AT_data_member_location.