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[Bug c/26765] New: ICE in in extract_insn, at recog.c:2036
- From: "raj dot khem at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Mar 2006 08:31:45 -0000
- Subject: [Bug c/26765] New: ICE in in extract_insn, at recog.c:2036
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
GCC trunk gets this ICE when building glibc. The ICE happens on gcc 4.1 too.
This happens when -O2 is turned on. Here is a reduced testcase to reproduce the
problem.
example.c
==================
__thread int *a = 0;
void foo (void)
{
extern int *b;
b = (int *) ((*a));
}
how to reproduce
mips-elf-gcc -O2 -c example.c
example.c: In function 'foo':
example.c:7: error: unrecognizable insn:
(insn 14 13 15 3 (set (reg/f:SI 193)
(mem/c/i:SI (lo_sum:SI (reg:SI 195)
(const:SI (unspec:SI [
(symbol_ref:SI ("a") [flags 0x22] <var_decl
0xb7c4a840 a>)
] 114))) [2 a+0 S4 A32])) -1 (nil)
(nil))
example.c:7: internal compiler error: in extract_insn, at recog.c:2036
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
--
Summary: ICE in in extract_insn, at recog.c:2036
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: raj dot khem at gmail dot com
GCC build triplet: i386-redhat-linux
GCC host triplet: i386-redhat-linux
GCC target triplet: mips-unknown-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26765