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[Bug c/53495] New: segmentation fault
- From: "regehr at cs dot utah.edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 26 May 2012 14:11:51 +0000
- Subject: [Bug c/53495] New: segmentation fault
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53495
Bug #: 53495
Summary: segmentation fault
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: regehr@cs.utah.edu
CC: chenyang@cs.utah.edu
[regehr@dyson r59]$ current-gcc -O1 small.c -c
small.c: In function 'fn4':
small.c:14:1: internal compiler error: Segmentation fault
}
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
[regehr@dyson r59]$ current-gcc -v
Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r187906-install/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r187906-install
--program-prefix=r187906- --enable-languages=c,c++
Thread model: posix
gcc version 4.8.0 20120526 (experimental) (GCC)
[regehr@dyson r59]$ cat small.c
int a, b, c, d, e, g;
static char
fn1 (char p1, int p2)
{
return p1 || p2 < 0 || p2 >= 1 || 1 >> p2 ? p1 : 0;
}
static long long fn2 (int *, int);
static int fn3 ();
void
fn4 ()
{
fn3 ();
fn2 (&a, d);
}
long long
fn2 (int *p1, int p2)
{
int f = -1L;
for (; c <= 1; c++)
{
*p1 = 0;
*p1 = fn1 (c, p2 ^ f);
}
a = 0;
e = p2;
return 0;
}
int
fn3 ()
{
b = 3;
for (; b; b--)
c++;
g = 0 >= c;
return 0;
}