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From: "hjl dot tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/44817] New: Stage2/stage3 genautomata has invalid memory access
Date: Sun, 04 Jul 2010 23:39:00 -0000 [thread overview]
Message-ID: <bug-44817-682@http.gcc.gnu.org/bugzilla/> (raw)
On Linux/x86-64, revision 161806 gave:
# /usr/bin/valgrind --tool=memcheck build/genautomata
/export/gnu/import/svn/gcc-test/src-trunk/gcc/config/i386/i386.md
insn-conditions.md > /dev/null
==5903== Memcheck, a memory error detector
==5903== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
==5903== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright info
==5903== Command: build/genautomata
/export/gnu/import/svn/gcc-test/src-trunk/gcc/config/i386/i386.md
insn-conditions.md
==5903==
==5903== Invalid read of size 8
==5903== at 0x401BE7: check_absence_pattern_sets (genautomata.c:4353)
==5903== by 0x40D85F: create_automata (genautomata.c:3503)
==5903== by 0x4101D5: expand_automata (genautomata.c:9093)
==5903== by 0x4115B8: main (genautomata.c:9543)
==5903== Address 0x1c is not stack'd, malloc'd or (recently) free'd
==5903==
==5903==
==5903== Process terminating with default action of signal 11 (SIGSEGV)
==5903== Access not within mapped region at address 0x1C
==5903== at 0x401BE7: check_absence_pattern_sets (genautomata.c:4353)
==5903== by 0x40D85F: create_automata (genautomata.c:3503)
==5903== by 0x4101D5: expand_automata (genautomata.c:9093)
==5903== by 0x4115B8: main (genautomata.c:9543)
==5903== If you believe this happened as a result of a stack
==5903== overflow in your program's main thread (unlikely but
==5903== possible), you can try to increase the size of the
==5903== main thread stack using the --main-stacksize= flag.
==5903== The main thread stack size used in this run was 8388608.
==5903==
==5903== HEAP SUMMARY:
==5903== in use at exit: 11,187,082 bytes in 73,185 blocks
==5903== total heap usage: 83,419 allocs, 10,234 frees, 32,694,074 bytes
allocated
==5903==
--
Summary: Stage2/stage3 genautomata has invalid memory access
Product: gcc
Version: 4.5.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl dot tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44817
next reply other threads:[~2010-07-04 23:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-04 23:39 hjl dot tools at gmail dot com [this message]
2010-07-05 0:06 ` [Bug middle-end/44817] " hjl dot tools at gmail dot com
2010-07-05 0:20 ` hjl dot tools at gmail dot com
2010-07-05 14:09 ` ubizjak at gmail dot com
2010-07-05 15:57 ` hjl dot tools at gmail dot com
2010-07-26 18:41 ` hjl dot tools at gmail dot com
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