[Bug debug/22318] New: debug info wrong for doubles followed by bools

["charles at kde dot org" <gcc-bugzilla at gcc dot gnu dot org>]

This is a problem in gcc's default debug format.  It works fine with -gstabs.     
  
struct X  
{  
	bool x;  
	double d;  
};  
  
int main()  
{  
	X x;  
	x.d = 42.0;  
}  
  
When debugging with gdb, x.d will contain something wrong, (often something   
like 5.301466631257326e-315). If you change the bool to another type or   
remove that variable completely, the results are correct. If you move the bool  
to the end of the structure, the results are also correct.  
  
This bug does not affect the execution of the program.  
  
I guess it's something to do with how gcc writes debug info for the size of a   
bool in the structure, possibly related to packing.  
  
I'm also able to reproduce this on gcc 3.3.4.

-- 
           Summary: debug info wrong for doubles followed by bools
           Product: gcc
           Version: 3.3.6
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: charles at kde dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: gcc version 3.3.6 (Debian 1:3.3.6-7)


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22318