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* [Bug bootstrap/64676] New: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint @ 2015-01-19 19:24 dje at gcc dot gnu.org 2015-01-19 19:25 ` [Bug bootstrap/64676] " dje at gcc dot gnu.org ` (6 more replies) 0 siblings, 7 replies; 8+ messages in thread From: dje at gcc dot gnu.org @ 2015-01-19 19:24 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64676 Bug ID: 64676 Summary: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: blocker Priority: P3 Component: bootstrap Assignee: unassigned at gcc dot gnu.org Reporter: dje at gcc dot gnu.org $ cat conftest.c int main () { ; return 0; } (gdb) run -O conftest.c Starting program: /tmp/20150119/gcc/cc1 -O conftest.c main Analyzing compilation unit Performing interprocedural optimizations <*free_lang_data> <visibility> <build_ssa_passes> <chkp_passes> <opt_local_passes> Program received signal SIGSEGV, Segmentation fault. 0x100eb7fc in _ZL17solve_constraintsv () at /nasfarm/edelsohn/src/src/gcc/tree-ssa-structalias.c:8000 (gdb) where #0 0x100eb7fc in _ZL17solve_constraintsv () at /nasfarm/edelsohn/src/src/gcc/tree-ssa-structalias.c:8000 #1 0x100f7860 in _Z19compute_may_aliasesv () at /nasfarm/edelsohn/src/src/gcc/tree-ssa-structalias.c:14010 #2 0x103c31ac in _ZL21execute_function_todoP8functionPv (fn=0x5b5b0000, data=0x8) at /nasfarm/edelsohn/src/src/gcc/passes.c:1927 #3 0x103c3f24 in _ZL15do_per_functionPFvP8functionPvES1_ ( callback=@0x30299ae4: 0x103c3108 <_ZL21execute_function_todoP8functionPv>, data=0x3005f550 <cfun>) at /nasfarm/edelsohn/src/src/gcc/passes.c:1647 #4 0x103c41e4 in _ZL12execute_todoj (flags=1048640) at /nasfarm/edelsohn/src/src/gcc/passes.c:2012 #5 0x103c7f38 in _Z16execute_one_passP8opt_pass (pass=0x30300c78) at /nasfarm/edelsohn/src/src/gcc/passes.c:2339 #6 0x103c840c in _ZL19execute_pass_list_1P8opt_pass.constprop.71 ( pass=0x30300c78) at /nasfarm/edelsohn/src/src/gcc/passes.c:2378 #7 0x103c8424 in _ZL19execute_pass_list_1P8opt_pass.constprop.71 ( pass=0x30300a98) at /nasfarm/edelsohn/src/src/gcc/passes.c:2379 #8 0x103c84d4 in _Z17execute_pass_listP8functionP8opt_pass (fn=0x70008068, pass=0x30300958) at /nasfarm/edelsohn/src/src/gcc/passes.c:2389 #9 0x103c62b8 in _Z24do_per_function_toporderPFvP8functionPvES1_ ( callback=@0x30299c94: 0x103c84a8 <_Z17execute_pass_listP8functionP8opt_pass>, data=0x30300958) at /nasfarm/edelsohn/src/src/gcc/passes.c:1724 #10 0x103c8f50 in _Z21execute_ipa_pass_listP8opt_pass (pass=0x30300908) ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug bootstrap/64676] [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint 2015-01-19 19:24 [Bug bootstrap/64676] New: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint dje at gcc dot gnu.org @ 2015-01-19 19:25 ` dje at gcc dot gnu.org 2015-01-19 20:09 ` jakub at gcc dot gnu.org ` (5 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: dje at gcc dot gnu.org @ 2015-01-19 19:25 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64676 David Edelsohn <dje at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |powerpc-ibm-aix* Status|UNCONFIRMED |NEW Last reconfirmed| |2015-01-19 Host| |powerpc-ibm-aix* Target Milestone|--- |5.0 Ever confirmed|0 |1 Build| |powerpc-ibm-aix* --- Comment #1 from David Edelsohn <dje at gcc dot gnu.org> --- Confirmed. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug bootstrap/64676] [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint 2015-01-19 19:24 [Bug bootstrap/64676] New: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint dje at gcc dot gnu.org 2015-01-19 19:25 ` [Bug bootstrap/64676] " dje at gcc dot gnu.org @ 2015-01-19 20:09 ` jakub at gcc dot gnu.org 2015-01-19 20:23 ` dje at gcc dot gnu.org ` (4 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: jakub at gcc dot gnu.org @ 2015-01-19 20:09 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64676 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Which stage cc1 is it? ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug bootstrap/64676] [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint 2015-01-19 19:24 [Bug bootstrap/64676] New: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint dje at gcc dot gnu.org 2015-01-19 19:25 ` [Bug bootstrap/64676] " dje at gcc dot gnu.org 2015-01-19 20:09 ` jakub at gcc dot gnu.org @ 2015-01-19 20:23 ` dje at gcc dot gnu.org 2015-01-19 20:26 ` dje at gcc dot gnu.org ` (3 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: dje at gcc dot gnu.org @ 2015-01-19 20:23 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64676 --- Comment #3 from David Edelsohn <dje at gcc dot gnu.org> --- Configure libgcc in stage 2. The first use of the stage 1 compiler. r219827 bootstrapped successfully. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug bootstrap/64676] [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint 2015-01-19 19:24 [Bug bootstrap/64676] New: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint dje at gcc dot gnu.org ` (2 preceding siblings ...) 2015-01-19 20:23 ` dje at gcc dot gnu.org @ 2015-01-19 20:26 ` dje at gcc dot gnu.org 2015-01-19 21:49 ` dje at gcc dot gnu.org ` (2 subsequent siblings) 6 siblings, 0 replies; 8+ messages in thread From: dje at gcc dot gnu.org @ 2015-01-19 20:26 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64676 --- Comment #4 from David Edelsohn <dje at gcc dot gnu.org> --- Sorry, first use of the stage 2 compiler that presumably was miscompiled by stage 1 compiler. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug bootstrap/64676] [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint 2015-01-19 19:24 [Bug bootstrap/64676] New: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint dje at gcc dot gnu.org ` (3 preceding siblings ...) 2015-01-19 20:26 ` dje at gcc dot gnu.org @ 2015-01-19 21:49 ` dje at gcc dot gnu.org 2015-01-20 8:29 ` ienkovich at gcc dot gnu.org 2015-01-20 9:33 ` [Bug bootstrap/64676] [5 " rguenth at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: dje at gcc dot gnu.org @ 2015-01-19 21:49 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64676 --- Comment #5 from David Edelsohn <dje at gcc dot gnu.org> --- This was caused by r219842 PR rtl-optimization/64081 * loop-iv.c (def_pred_latch_p): New function. (latch_dominating_def): Allow specific cases with non-single definitions. (iv_get_reaching_def): Likewise. (check_complex_exit_p): New function. (check_simple_exit): Use check_complex_exit_p to allow certain cases with exits not executing on any iteration. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug bootstrap/64676] [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint 2015-01-19 19:24 [Bug bootstrap/64676] New: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint dje at gcc dot gnu.org ` (4 preceding siblings ...) 2015-01-19 21:49 ` dje at gcc dot gnu.org @ 2015-01-20 8:29 ` ienkovich at gcc dot gnu.org 2015-01-20 9:33 ` [Bug bootstrap/64676] [5 " rguenth at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: ienkovich at gcc dot gnu.org @ 2015-01-20 8:29 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64676 --- Comment #6 from ienkovich at gcc dot gnu.org --- Author: ienkovich Date: Tue Jan 20 08:29:09 2015 New Revision: 219880 URL: https://gcc.gnu.org/viewcvs?rev=219880&root=gcc&view=rev Log: gcc/ PR bootstrap/64676 Revert: 2015-01-19 Igor Zamyatin <igor.zamyatin@intel.com> PR rtl-optimization/64081 * loop-iv.c (def_pred_latch_p): New function. (latch_dominating_def): Allow specific cases with non-single definitions. (iv_get_reaching_def): Likewise. (check_complex_exit_p): New function. (check_simple_exit): Use check_complex_exit_p to allow certain cases with exits not executing on any iteration. gcc/testsuite/ PR bootstrap/64676 Revert: 2014-01-19 Igor Zamyatin <igor.zamyatin@intel.com> PR rtl-optimization/64081 * gcc.dg/pr64081.c: New test. Removed: trunk/gcc/testsuite/gcc.dg/pr64081.c Modified: trunk/gcc/ChangeLog trunk/gcc/loop-iv.c trunk/gcc/testsuite/ChangeLog ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug bootstrap/64676] [5 Regression] SEGV in tree-ssa-structalias.c solve_constraint 2015-01-19 19:24 [Bug bootstrap/64676] New: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint dje at gcc dot gnu.org ` (5 preceding siblings ...) 2015-01-20 8:29 ` ienkovich at gcc dot gnu.org @ 2015-01-20 9:33 ` rguenth at gcc dot gnu.org 6 siblings, 0 replies; 8+ messages in thread From: rguenth at gcc dot gnu.org @ 2015-01-20 9:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64676 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Blocks| |64081 Resolution|--- |FIXED Summary|[5.0 Regression] SEGV in |[5 Regression] SEGV in |tree-ssa-structalias.c |tree-ssa-structalias.c |solve_constraint |solve_constraint --- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- Fixed by reversion. ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2015-01-20 9:33 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2015-01-19 19:24 [Bug bootstrap/64676] New: [5.0 Regression] SEGV in tree-ssa-structalias.c solve_constraint dje at gcc dot gnu.org 2015-01-19 19:25 ` [Bug bootstrap/64676] " dje at gcc dot gnu.org 2015-01-19 20:09 ` jakub at gcc dot gnu.org 2015-01-19 20:23 ` dje at gcc dot gnu.org 2015-01-19 20:26 ` dje at gcc dot gnu.org 2015-01-19 21:49 ` dje at gcc dot gnu.org 2015-01-20 8:29 ` ienkovich at gcc dot gnu.org 2015-01-20 9:33 ` [Bug bootstrap/64676] [5 " rguenth at gcc dot gnu.org
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