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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/44776] FAIL: gcc.dg/matrix/transpose-3.c execution, -fprofile-use -fipa-matrix-reorg -fdump-ipa-matrix-reorg -O3 -fwhole-program
Date: Mon, 20 Dec 2010 18:00:00 -0000 [thread overview]
Message-ID: <bug-44776-4-zKq1vDJumM@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-44776-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44776
--- Comment #12 from Zdenek Sojka <zsojka at seznam dot cz> 2010-12-20 18:00:15 UTC ---
Created attachment 22831
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22831
simpler testcase
Crashes on x86_64-linux, r168061
$ gcc -O -fipa-matrix-reorg -fwhole-program pr44776-2.c
$ ./a.out
Segmentation fault
With valgrind:
$ valgrind -q ./a.out
==16712== Invalid write of size 4
==16712== at 0x4005BC: main (pr44776-2.c:10)
==16712== Address 0x5186050 is 0 bytes after a block of size 16 alloc'd
==16712== at 0x4C2648E: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==16712== by 0x4005A7: main (pr44776-2.c:13)
==16712==
==16712== Invalid read of size 4
==16712== at 0x4005F9: main (pr44776-2.c:25)
==16712== Address 0x5186050 is 0 bytes after a block of size 16 alloc'd
==16712== at 0x4C2648E: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==16712== by 0x4005A7: main (pr44776-2.c:13)
==16712==
==16712== Invalid write of size 4
==16712== at 0x400602: main (pr44776-2.c:27)
==16712== Address 0x5186050 is 0 bytes after a block of size 16 alloc'd
==16712== at 0x4C2648E: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==16712== by 0x4005A7: main (pr44776-2.c:13)
==16712==
==16712== Invalid read of size 4
==16712== at 0x400629: main (pr44776-2.c:25)
==16712== Address 0x5286040 is not stack'd, malloc'd or (recently) free'd
==16712==
==16712== Invalid write of size 4
==16712== at 0x40063F: main (pr44776-2.c:27)
==16712== Address 0x5286040 is not stack'd, malloc'd or (recently) free'd
==16712==
next prev parent reply other threads:[~2010-12-20 18:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-44776-4@http.gcc.gnu.org/bugzilla/>
2010-10-18 17:06 ` davek at gcc dot gnu.org
2010-10-19 23:01 ` zsojka at seznam dot cz
2010-12-20 18:00 ` zsojka at seznam dot cz [this message]
2010-12-20 18:02 ` zsojka at seznam dot cz
2012-01-28 11:33 ` dominiq at lps dot ens.fr
2012-02-08 7:15 ` gary at intrepid dot com
2012-02-08 7:24 ` gary at intrepid dot com
2012-12-12 15:57 ` howarth at nitro dot med.uc.edu
2010-07-02 2:26 [Bug lto/44776] New: FAIL: gcc.dg/matrix/transpose-3.c execution, -fprofile-use -fipa-matrix-reorg -fdump-ipa-matrix-reorg -O3 -fwhole-program -combine howarth at nitro dot med dot uc dot edu
2010-09-17 15:57 ` [Bug tree-optimization/44776] FAIL: gcc.dg/matrix/transpose-3.c execution, -fprofile-use -fipa-matrix-reorg -fdump-ipa-matrix-reorg -O3 -fwhole-program dominiq at lps dot ens dot fr
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