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Date: Wed, 15 Oct 2003 22:19:00 -0000
From: "falk at debian dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Message-ID: <20031015221857.12628.falk@debian.org>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug optimization/12628] New: [3.4 regression] Segfault with -fno-expensive-optimizations -fno-rerun-loop-opt
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X-SW-Source: 2003-10/txt/msg01099.txt.bz2
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12628

           Summary: [3.4 regression] Segfault with -fno-expensive-
                    optimizations -fno-rerun-loop-opt
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: critical
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: falk at debian dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: alphaev68-unknown-linux-gnu
  GCC host triplet: alphaev68-unknown-linux-gnu
GCC target triplet: alphaev68-unknown-linux-gnu

GNU C version 3.4 20031012 (experimental) (alphaev68-unknown-linux-gnu)

falk@juist:/tmp% cat min2.c    
int outbuf[100];
int outcnt;
int bi_buf;
void send_bits(void)
{
    bi_buf = 0;
    outbuf[outcnt++] = 8;
    outbuf[outcnt++] = 8;
    if (outcnt)
        bi_buf = 1;
}

falk@juist:/tmp% gcc -O2 -c -fno-expensive-optimizations -fno-rerun-loop-opt
min2.c                                          
min2.c: In function `send_bits':                                                 
min2.c:11: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Also happens on tree-ssa.