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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] Stage2/stage3 genautomata has invalid memory access
Date: Mon, 05 Jul 2010 00:06:00 -0000 [thread overview]
Message-ID: <20100705000552.25986.qmail@sourceware.org> (raw)
In-Reply-To: <bug-44817-682@http.gcc.gnu.org/bugzilla/>
------- Comment #1 from hjl dot tools at gmail dot com 2010-07-05 00:05 -------
The code is
0000000000000260 <check_absence_pattern_sets>:
260: 41 57 push %r15
262: 44 8b 1d 00 00 00 00 mov 0x0(%rip),%r11d # 269
<check_absence_pattern_sets+0x9>
269: b8 01 00 00 00 mov $0x1,%eax
26e: 41 56 push %r14
270: 45 85 db test %r11d,%r11d
273: 41 55 push %r13
275: 41 54 push %r12
277: 55 push %rbp
278: 53 push %rbx
279: 0f 8e 94 00 00 00 jle 313
<check_absence_pattern_sets+0xb3>
27f: 48 8b 05 00 00 00 00 mov 0x0(%rip),%rax # 286
<check_absence_pattern_sets+0x26>
286: 48 8b 0d 00 00 00 00 mov 0x0(%rip),%rcx # 28d
<check_absence_pattern_sets+0x2d>
28d: 49 89 f5 mov %rsi,%r13
290: 4c 8b 35 00 00 00 00 mov 0x0(%rip),%r14 # 297
<check_absence_pattern_sets+0x37>
297: 45 31 e4 xor %r12d,%r12d
29a: 48 89 44 24 f0 mov %rax,-0x10(%rsp)
29f: 48 89 4c 24 f8 mov %rcx,-0x8(%rsp)
^^^^^^^^^^^^^^^^^^^^^^^ Is this safe?
...
350: 48 8b 4c 24 f8 mov -0x8(%rsp),%rcx
^^^^^^^^^^^ This is 0.
355: 48 98 cltq
357: 4c 8b 14 c1 mov (%rcx,%rax,8),%r10
35b: eb 80 jmp 2dd
<check_absence_pattern_sets+0x7d>
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ubizjak at gmail dot com
Version|4.5.1 |4.6.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44817
next prev parent reply other threads:[~2010-07-05 0:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-04 23:39 [Bug middle-end/44817] New: " hjl dot tools at gmail dot com
2010-07-05 0:06 ` hjl dot tools at gmail dot com [this message]
2010-07-05 0:20 ` [Bug middle-end/44817] " 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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