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[Bug c/51245] New: ICE in vn_reference_insert_pieces, at tree-ssa-sccvn.c:1983
- 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: Sun, 20 Nov 2011 20:31:32 +0000
- Subject: [Bug c/51245] New: ICE in vn_reference_insert_pieces, at tree-ssa-sccvn.c:1983
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51245
Bug #: 51245
Summary: ICE in vn_reference_insert_pieces, at
tree-ssa-sccvn.c:1983
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: regehr@cs.utah.edu
[regehr@gamow tmp065]$ current-gcc -v
Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r181530-install/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r181530-install
--program-prefix=r181530- --enable-languages=c,c++
Thread model: posix
gcc version 4.7.0 20111120 (experimental) (GCC)
[regehr@gamow tmp065]$ current-gcc -Ofast -c -w small.c
small.c: In function 'func_1':
small.c:11:1: internal compiler error: in vn_reference_insert_pieces, at
tree-ssa-sccvn.c:1983
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
[regehr@gamow tmp065]$ cat small.c
struct S0
{
int f4;
};
struct S0 g_122;
struct S0 *g_140;
struct S0 **g_348;
unsigned func_10 (int, int, char);
int func_75;
struct S0
func_1 ()
{
struct S0 l_444 = {
};
if (func_10 (0, 0, 0))
{
struct S0 *l_463 = &g_122;
for (;;)
{
*g_140 = l_444;
*l_463 = *g_140;
if (g_122.f4)
break;
}
}
return **g_348;
}
unsigned
func_10 (int p_11, int p_12, char p_13)
{
if (func_75)
**g_348 = *g_140;
return 1;
}