[Bug middle-end/27793] num_ssa_names inconsistent or immediate use iterator wrong

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2006-05-29 13:17 -------
Further reduced testcase:

extern int foo (__const char * __format, ...);
extern int verbose;
void demux_open_rtp(void)
{
    int* mem = __null;
    int* rtspClient = __null;
    char* sdpDescription;
    if (sdpDescription == __null) {
        extern int verbose;
        rtspClient = new int[verbose];
    }
    int* mediaSession = new int[4];
    int* iter = mediaSession+1;
    int* subsession;
    if ((subsession = iter) != __null) {
        foo ("%s RTP subsession\n", sdpDescription);
        if (verbose > 0)
            foo ("Increased socket receive buffer");  
    }
}
static inline const char *tag(const void *) { }
void afterReading(void* bufferQueue)
{
    if (verbose > 0)
        foo ("%s stream has been synchronized using RTCP %s\n",
             tag(bufferQueue), tag(bufferQueue));
}

fails with cc1plus -O -frandom-seed=0 --param ggc-min-expand=0 --param
ggc-min-heapsize=0 if traced with valgrind, ICEs/segfaults randomly.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27793