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From: "krebbel at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug debug/63135] New: [4.9 regression] Infinite loop in var-tracking Date: Tue, 02 Sep 2014 14:11:00 -0000 [thread overview] Message-ID: <bug-63135-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63135 Bug ID: 63135 Summary: [4.9 regression] Infinite loop in var-tracking Product: gcc Version: 4.9.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug Assignee: unassigned at gcc dot gnu.org Reporter: krebbel at gcc dot gnu.org Created attachment 33435 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33435&action=edit Preprocessed zsh 5.0.6 source file zsh compilation runs into infinite loop on S/390: cc1 builtin.i -m64 -mzarch -march=z900 -g -O2 -fstack-protector-all -o builtin.s reghunt indicates that the failure started to appear with r208165 and for mainline got fixed (or papered over) with r211007. However, it still fails with GCC 4.9 branch. (gdb) bt #0 0x000000008088f8ea in dv_uid (dv=0x812accb8) at /home/andreas/clean/gcc/gcc/var-tracking.c:443 #1 dv_htab_hash (dv=0x812accb8) at /home/andreas/clean/gcc/gcc/var-tracking.c:461 #2 dv_htab_hash (dv=0x812accb8) at /home/andreas/clean/gcc/gcc/var-tracking.c:1604 #3 vars_copy (src=..., dst=...) at /home/andreas/clean/gcc/gcc/var-tracking.c:1816 #4 shared_hash_unshare (vars=0x81258960) at /home/andreas/clean/gcc/gcc/var-tracking.c:1610 #5 0x0000000080895d34 in shared_hash_find_slot_unshare_1 (ins=INSERT, dvhash=169, dv=0x81188080, pvars=0x81187758) at /home/andreas/clean/gcc/gcc/var-tracking.c:1646 #6 shared_hash_find_slot_unshare (ins=INSERT, dv=0x81188080, pvars=0x81187758) at /home/andreas/clean/gcc/gcc/var-tracking.c:1654 #7 set_variable_part (set=0x81187620, loc=0x3fff6e1e8b8, dv=0x81188080, offset=0, initialized=VAR_INIT_STATUS_INITIALIZED, set_src=0x0, iopt=INSERT) at /home/andreas/clean/gcc/gcc/var-tracking.c:7768 #8 0x000000008089625a in var_mem_decl_set (set=0x81187620, loc=0x3fff6e1e8b8, initialized=<optimized out>, dv=0x81188080, offset=<optimized out>, set_src=0x0, iopt=INSERT) at /home/andreas/clean/gcc/gcc/var-tracking.c:2341 #9 0x000000008089acd0 in val_bind (modified=<optimized out>, loc=<optimized out>, val=<optimized out>, set=<optimized out>) at /home/andreas/clean/gcc/gcc/var-tracking.c:2455 #10 val_resolve (set=0x81187620, val=0x81188080, loc=0x3fff6e1e8b8, insn=<optimized out>) at /home/andreas/clean/gcc/gcc/var-tracking.c:2653 #11 0x000000008089b8b6 in compute_bb_dataflow (bb=0x3fff6cbcc30) at /home/andreas/clean/gcc/gcc/var-tracking.c:6718 #12 0x000000008089cba4 in vt_find_locations () at /home/andreas/clean/gcc/gcc/var-tracking.c:7070 #13 0x000000008089f0ca in variable_tracking_main_1 () at /home/andreas/clean/gcc/gcc/var-tracking.c:10294
next reply other threads:[~2014-09-02 14:11 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-09-02 14:11 krebbel at gcc dot gnu.org [this message] 2014-09-02 14:13 ` [Bug debug/63135] " krebbel at gcc dot gnu.org 2014-09-02 14:15 ` rguenth at gcc dot gnu.org 2014-10-30 10:41 ` jakub at gcc dot gnu.org 2014-11-24 16:54 ` rguenth at gcc dot gnu.org 2015-06-26 20:18 ` jakub at gcc dot gnu.org 2015-06-26 20:38 ` jakub at gcc dot gnu.org 2015-10-13 8:34 ` mkuvyrkov at gcc dot gnu.org
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