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* [Bug tree-optimization/54098] New: [tree-vrp] ICE on valid code @ 2012-07-26 8:25 zhroma at newmail dot ru 2012-07-26 9:00 ` [Bug tree-optimization/54098] [4.8 Regression] " rguenth at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: zhroma at newmail dot ru @ 2012-07-26 8:25 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54098 Bug #: 54098 Summary: [tree-vrp] ICE on valid code Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned@gcc.gnu.org ReportedBy: zhroma@newmail.ru Created attachment 27876 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27876 Preprocessed minimized testcase. gcc 4.8 revision 188728 and later segfaults on 64bit Linux while compiling the attached code with -march=nocona. $ gcc -Wall -O2 -march=nocona -c foo-small.c foo-small.c: In function 'pbus_size_mem': foo-small.c:35:6: internal compiler error: Segmentation fault void pbus_size_mem(struct pci_bus *bus, unsigned long mask, unsigned long type, unsigned long long min_size, unsigned long long add_size, void *realloc_head) { ^ Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. $ gcc --version gcc (GCC) 4.8.0 20120618 (experimental) Copyright (C) 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. gcc configured with "--disable-bootstrap --enable-languages=c,c++" 4.6.3 works ok. 4.8 trunk up to revision 188727 also works ok. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/54098] [4.8 Regression] ICE on valid code 2012-07-26 8:25 [Bug tree-optimization/54098] New: [tree-vrp] ICE on valid code zhroma at newmail dot ru @ 2012-07-26 9:00 ` rguenth at gcc dot gnu.org 2012-07-26 10:25 ` rguenth at gcc dot gnu.org 2012-07-26 11:30 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2012-07-26 9:00 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54098 Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2012-07-26 Target Milestone|--- |4.8.0 Summary|[tree-vrp] ICE on valid |[4.8 Regression] ICE on |code |valid code Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-26 09:00:10 UTC --- Confirmed, mine. Program received signal SIGSEGV, Segmentation fault. 0x0000000000e03ca0 in compare_values_warnv (val1=0x0, val2=0x7ffff70bef00, strict_overflow_p=0x7fffffffd83b "") at /space/rguenther/src/svn/trunk/gcc/tree-vrp.c:1148 1148 gcc_assert (POINTER_TYPE_P (TREE_TYPE (val1)) (gdb) p val1 $1 = (tree) 0x0 lhs_vr is undefined in vrp_visit_phi_node at 7671 if (edges > 0 7672 && gimple_phi_num_args (phi) > 1 7673 && edges == old_edges) 7674 { 7675 int cmp_min = compare_values (lhs_vr->min, vr_result.min); 7676 int cmp_max = compare_values (lhs_vr->max, vr_result.max); ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/54098] [4.8 Regression] ICE on valid code 2012-07-26 8:25 [Bug tree-optimization/54098] New: [tree-vrp] ICE on valid code zhroma at newmail dot ru 2012-07-26 9:00 ` [Bug tree-optimization/54098] [4.8 Regression] " rguenth at gcc dot gnu.org @ 2012-07-26 10:25 ` rguenth at gcc dot gnu.org 2012-07-26 11:30 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2012-07-26 10:25 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54098 --- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-26 10:25:21 UTC --- Author: rguenth Date: Thu Jul 26 10:25:15 2012 New Revision: 189885 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189885 Log: 2012-07-26 Richard Guenther <rguenther@suse.de> PR tree-optimization/54098 * tree-vrp.c (vrp_visit_phi_node): Iterate once more if the original range was UNDEFINED. * gcc.dg/torture/pr54098.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/torture/pr54098.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-vrp.c ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/54098] [4.8 Regression] ICE on valid code 2012-07-26 8:25 [Bug tree-optimization/54098] New: [tree-vrp] ICE on valid code zhroma at newmail dot ru 2012-07-26 9:00 ` [Bug tree-optimization/54098] [4.8 Regression] " rguenth at gcc dot gnu.org 2012-07-26 10:25 ` rguenth at gcc dot gnu.org @ 2012-07-26 11:30 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2012-07-26 11:30 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54098 Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-26 11:30:19 UTC --- Fixed. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-07-26 11:30 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-07-26 8:25 [Bug tree-optimization/54098] New: [tree-vrp] ICE on valid code zhroma at newmail dot ru 2012-07-26 9:00 ` [Bug tree-optimization/54098] [4.8 Regression] " rguenth at gcc dot gnu.org 2012-07-26 10:25 ` rguenth at gcc dot gnu.org 2012-07-26 11:30 ` rguenth at gcc dot gnu.org
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