Given the following simple code snippet, tested on x86_64-pc-linux-gnu,
i686-pc-linux-gnu, and i686-pc-mingw32:

struct Elem {
   int data;
   struct Elem* next;

int main () {
   struct Elem* list;
   return 0;

Compile with:
g++ -o main

run under gdb:
gdb main
ptype Elem

type = struct Elem {
    int data;
    void *next;

instead of (with e.g. g++ 4.4.3):
type = struct Elem {
    int data;
    Elem *next;

           Summary: regression in debug info on simple C++ code
           Product: gcc
           Version: 4.5.2
            Status: UNCONFIRMED
          Keywords: wrong-debug
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: charlet at gcc dot gnu dot org

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