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References: <bug-28187-7667@http.gcc.gnu.org/bugzilla/>
Subject: [Bug tree-optimization/28187] [4.1/4.2 Regression] '-O2 -fwrapv' exhausts memory.
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------- Comment #4 from rguenth at gcc dot gnu dot org  2006-07-05 15:06 -------
Reduced testcase, -O -ftree-vrp -fwrapv

extern int foo(const char *);
extern int verbose;
struct newsgroup {
    char* name;
};
extern struct newsgroup** stufftoget;
extern char *l;
void checkgroups(int last) 
{
    int window = 0;
    int outstanding = 0;
    while (window < last || outstanding) {
        while (outstanding < 47 && window < last) {
            if (window < last) { 
                outstanding++; 
                if (verbose > 1)
                    foo(stufftoget[window]->name); 
                foo(stufftoget[window++]->name);      
            }
        }
        if (outstanding > 0) {
            if (foo(l) < 5 );
        }
    }
}


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-07-05 15:06:20
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28187