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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/52925] New: [4.5/4.6 Regression] var-tracking never terminates Date: Tue, 10 Apr 2012 08:38:00 -0000 [thread overview] Message-ID: <bug-52925-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52925 Bug #: 52925 Summary: [4.5/4.6 Regression] var-tracking never terminates Classification: Unclassified Product: gcc Version: 4.6.3 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned@gcc.gnu.org ReportedBy: rguenth@gcc.gnu.org gcc -O2 -g -S bug-756235_t.c hangs forever in #0 0x0000000001176db4 in htab_mod_1 (x=99, y=59, inv=363980280, shift=5) at /space/rguenther/src/svn/gcc-4_6-branch/libiberty/hashtab.c:257 #1 0x0000000001176e50 in htab_mod_m2 (hash=99, htab=0x1a79900) at /space/rguenther/src/svn/gcc-4_6-branch/libiberty/hashtab.c:282 #2 0x00000000011779b3 in htab_find_slot_with_hash (htab=0x1a79900, element=0x1b77fb0, hash=99, insert=INSERT) at /space/rguenther/src/svn/gcc-4_6-branch/libiberty/hashtab.c:671 #3 0x0000000000c93ad7 in vars_copy (dst=0x1a79900, src=0x1a7a850) at /space/rguenther/src/svn/gcc-4_6-branch/gcc/var-tracking.c:1601 #4 0x0000000000c9344b in shared_hash_unshare (vars=0x1a948e8) at /space/rguenther/src/svn/gcc-4_6-branch/gcc/var-tracking.c:1404 #5 0x0000000000c93520 in shared_hash_find_slot_unshare_1 (pvars=0x1bd6748, dv=0x1b77cb0, dvhash=67, ins=INSERT) at /space/rguenther/src/svn/gcc-4_6-branch/gcc/var-tracking.c:1440 #6 0x0000000000c9357e in shared_hash_find_slot_unshare (pvars=0x1bd6748, dv=0x1b77cb0, ins=INSERT) at /space/rguenther/src/svn/gcc-4_6-branch/gcc/var-tracking.c:1448 #7 0x0000000000ca22fb in set_variable_part (set=0x1bd6598, loc=0x7ffff5bc9528, dv=0x1b77cb0, offset=0, initialized=VAR_INIT_STATUS_INITIALIZED, set_src=0x0, iopt=INSERT) at /space/rguenther/src/svn/gcc-4_6-branch/gcc/var-tracking.c:6730 #8 0x0000000000c947c9 in val_store (set=0x1bd6598, val=0x1b77cb0, loc=0x7ffff5bc9528, insn=0x7ffff504f870, modified=0 '\000') at /space/rguenther/src/svn/gcc-4_6-branch/gcc/var-tracking.c:1889 #9 0x0000000000c9f7b3 in compute_bb_dataflow (bb=0x7ffff4209dd0) at /space/rguenther/src/svn/gcc-4_6-branch/gcc/var-tracking.c:5824 #10 0x0000000000ca08ab in vt_find_locations () with no progress. Maybe works in 4.7 by luck.
next reply other threads:[~2012-04-10 8:38 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-04-10 8:38 rguenth at gcc dot gnu.org [this message] 2012-04-10 8:38 ` [Bug middle-end/52925] " rguenth at gcc dot gnu.org 2012-04-10 8:40 ` rguenth at gcc dot gnu.org 2012-04-10 10:53 ` bart.vanassche at gmail dot com 2012-07-02 11:26 ` rguenth at gcc dot gnu.org 2013-04-12 16:17 ` [Bug middle-end/52925] [4.6 " jakub at gcc dot gnu.org
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