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* [Bug rtl-optimization/47201] New: [4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g @ 2011-01-07 4:29 zsojka at seznam dot cz 2011-01-07 9:15 ` [Bug target/47201] [4.5/4.6 " jakub at gcc dot gnu.org ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: zsojka at seznam dot cz @ 2011-01-07 4:29 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47201 Summary: [4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization AssignedTo: unassigned@gcc.gnu.org ReportedBy: zsojka@seznam.cz Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 22919 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22919 reduced testcase valgrind output: $ gcc -O -fPIC -g testcase.c ==20054== Invalid read of size 2 ==20054== at 0xA70C22: adjust_mems (var-tracking.c:814) ==20054== by 0x8C08FE: simplify_replace_fn_rtx (simplify-rtx.c:371) ==20054== by 0xA6D075: adjust_mem_uses (var-tracking.c:930) ==20054== by 0x86387D: note_uses (rtlanal.c:1524) ==20054== by 0xA7756B: vt_initialize (var-tracking.c:1016) ==20054== by 0xA80226: variable_tracking_main (var-tracking.c:8532) ==20054== by 0x7F1F65: execute_one_pass (passes.c:1553) ==20054== by 0x7F2254: execute_pass_list (passes.c:1608) ==20054== by 0x7F2266: execute_pass_list (passes.c:1609) ==20054== by 0x7F2266: execute_pass_list (passes.c:1609) ==20054== by 0x932325: tree_rest_of_compilation (tree-optimize.c:422) ==20054== by 0xAF74A1: cgraph_expand_function (cgraphunit.c:1519) ==20054== by 0xAF9B69: cgraph_optimize (cgraphunit.c:1578) ==20054== by 0xAFA0E9: cgraph_finalize_compilation_unit (cgraphunit.c:1042) ==20054== by 0x509D6B: c_write_global_declarations (c-decl.c:9843) ==20054== by 0x8DBAF5: toplev_main (toplev.c:591) ==20054== by 0x6369BBC: (below main) (in /lib64/libc-2.11.2.so) ==20054== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==20054== testcase.c: In function 'foo': testcase.c:13:1: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Program received signal SIGSEGV, Segmentation fault. 0x0000000000a70c22 in adjust_mems (loc=0x7ffff5d2d498, old_rtx=0x0, data=0x7fffffffd740) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/var-tracking.c:814 814 if (mem != loc && !MEM_P (mem)) (gdb) bt #0 0x0000000000a70c22 in adjust_mems (loc=0x7ffff5d2d498, old_rtx=0x0, data=0x7fffffffd740) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/var-tracking.c:814 #1 0x00000000008c08ff in simplify_replace_fn_rtx (x=0x7ffff5d2d498, old_rtx=0x0, fn=0xa70500 <adjust_mems>, data=0x7fffffffd740) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/simplify-rtx.c:371 #2 0x0000000000a6d076 in adjust_mem_uses (x=0x7ffff5cd1c28, data=<value optimized out>) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/var-tracking.c:930 #3 0x000000000086387e in note_uses (pbody=<value optimized out>, fun=0xa6d060 <adjust_mem_uses>, data=0x7fffffffd740) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/rtlanal.c:1524 #4 0x0000000000a7756c in adjust_insn () at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/var-tracking.c:1016 #5 vt_initialize () at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/var-tracking.c:8375 #6 0x0000000000a80227 in variable_tracking_main_1 () at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/var-tracking.c:8532 #7 variable_tracking_main () at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/var-tracking.c:8584 #8 0x00000000007f1f66 in execute_one_pass (pass=0x163b620) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/passes.c:1553 #9 0x00000000007f2255 in execute_pass_list (pass=0x163b620) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/passes.c:1608 #10 0x00000000007f2267 in execute_pass_list (pass=0x16381a0) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/passes.c:1609 #11 0x00000000007f2267 in execute_pass_list (pass=0x1638200) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/passes.c:1609 #12 0x0000000000932326 in tree_rest_of_compilation (fndecl=0x7ffff5cc3f00) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/tree-optimize.c:422 #13 0x0000000000af74a2 in cgraph_expand_function (node=0x7ffff5cc8160) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cgraphunit.c:1519 #14 0x0000000000af9b6a in cgraph_expand_all_functions () at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cgraphunit.c:1578 #15 cgraph_optimize () at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cgraphunit.c:1838 #16 0x0000000000afa0ea in cgraph_finalize_compilation_unit () at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/cgraphunit.c:1042 #17 0x0000000000509d6c in c_write_global_declarations () at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/c-decl.c:9843 #18 0x00000000008dbaf6 in compile_file (argc=15, argv=0x7fffffffdab8) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/toplev.c:591 #19 do_compile (argc=15, argv=0x7fffffffdab8) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/toplev.c:1874 #20 toplev_main (argc=15, argv=0x7fffffffdab8) at /usr/portage/distfiles/svn-src/gcc/trunk/gcc/toplev.c:1937 #21 0x00007ffff6586bbd in __libc_start_main () from /lib/libc.so.6 #22 0x00000000004f0955 in _start () ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/47201] [4.5/4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g 2011-01-07 4:29 [Bug rtl-optimization/47201] New: [4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g zsojka at seznam dot cz @ 2011-01-07 9:15 ` jakub at gcc dot gnu.org 2011-01-07 9:25 ` jakub at gcc dot gnu.org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: jakub at gcc dot gnu.org @ 2011-01-07 9:15 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47201 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P2 Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2011.01.07 08:55:39 Component|rtl-optimization |target CC| |jakub at gcc dot gnu.org AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org |gnu.org | Ever Confirmed|0 |1 Target Milestone|--- |4.6.0 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/47201] [4.5/4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g 2011-01-07 4:29 [Bug rtl-optimization/47201] New: [4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g zsojka at seznam dot cz 2011-01-07 9:15 ` [Bug target/47201] [4.5/4.6 " jakub at gcc dot gnu.org @ 2011-01-07 9:25 ` jakub at gcc dot gnu.org 2011-01-07 18:43 ` jakub at gcc dot gnu.org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: jakub at gcc dot gnu.org @ 2011-01-07 9:25 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47201 --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-07 09:06:37 UTC --- Created attachment 22920 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22920 gcc46-pr47201.patch Untested fix. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/47201] [4.5/4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g 2011-01-07 4:29 [Bug rtl-optimization/47201] New: [4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g zsojka at seznam dot cz 2011-01-07 9:15 ` [Bug target/47201] [4.5/4.6 " jakub at gcc dot gnu.org 2011-01-07 9:25 ` jakub at gcc dot gnu.org @ 2011-01-07 18:43 ` jakub at gcc dot gnu.org 2011-01-07 19:27 ` [Bug target/47201] [4.5 " jakub at gcc dot gnu.org ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: jakub at gcc dot gnu.org @ 2011-01-07 18:43 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47201 --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-07 18:41:42 UTC --- Author: jakub Date: Fri Jan 7 18:41:40 2011 New Revision: 168582 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168582 Log: PR target/47201 * config/i386/i386.c (ix86_delegitimize_address): If simplify_gen_subreg fails, return orig_x. * gcc.dg/pr47201.c: New test. Added: trunk/gcc/testsuite/gcc.dg/pr47201.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c trunk/gcc/testsuite/ChangeLog ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/47201] [4.5 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g 2011-01-07 4:29 [Bug rtl-optimization/47201] New: [4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g zsojka at seznam dot cz ` (2 preceding siblings ...) 2011-01-07 18:43 ` jakub at gcc dot gnu.org @ 2011-01-07 19:27 ` jakub at gcc dot gnu.org 2011-01-16 20:42 ` jakub at gcc dot gnu.org 2011-01-17 8:07 ` jakub at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: jakub at gcc dot gnu.org @ 2011-01-07 19:27 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47201 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |4.6.0 Summary|[4.5/4.6 Regression] ICE: |[4.5 Regression] ICE: |SIGSEGV in adjust_mems |SIGSEGV in adjust_mems |(var-tracking.c:814) with |(var-tracking.c:814) with |-O -fPIC -g |-O -fPIC -g Known to fail|4.6.0 | --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-07 18:45:47 UTC --- Fixed on the trunk so far. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/47201] [4.5 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g 2011-01-07 4:29 [Bug rtl-optimization/47201] New: [4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g zsojka at seznam dot cz ` (3 preceding siblings ...) 2011-01-07 19:27 ` [Bug target/47201] [4.5 " jakub at gcc dot gnu.org @ 2011-01-16 20:42 ` jakub at gcc dot gnu.org 2011-01-17 8:07 ` jakub at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: jakub at gcc dot gnu.org @ 2011-01-16 20:42 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47201 --- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-16 20:27:57 UTC --- Author: jakub Date: Sun Jan 16 20:27:54 2011 New Revision: 168870 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168870 Log: Backport from mainline 2011-01-07 Jakub Jelinek <jakub@redhat.com> PR target/47201 * config/i386/i386.c (ix86_delegitimize_address): If simplify_gen_subreg fails, return orig_x. * gcc.dg/pr47201.c: New test. Added: branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/pr47201.c Modified: branches/gcc-4_5-branch/gcc/ChangeLog branches/gcc-4_5-branch/gcc/config/i386/i386.c branches/gcc-4_5-branch/gcc/testsuite/ChangeLog ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/47201] [4.5 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g 2011-01-07 4:29 [Bug rtl-optimization/47201] New: [4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g zsojka at seznam dot cz ` (4 preceding siblings ...) 2011-01-16 20:42 ` jakub at gcc dot gnu.org @ 2011-01-17 8:07 ` jakub at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: jakub at gcc dot gnu.org @ 2011-01-17 8:07 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47201 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-17 08:05:40 UTC --- Fixed. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2011-01-17 8:05 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-01-07 4:29 [Bug rtl-optimization/47201] New: [4.6 Regression] ICE: SIGSEGV in adjust_mems (var-tracking.c:814) with -O -fPIC -g zsojka at seznam dot cz 2011-01-07 9:15 ` [Bug target/47201] [4.5/4.6 " jakub at gcc dot gnu.org 2011-01-07 9:25 ` jakub at gcc dot gnu.org 2011-01-07 18:43 ` jakub at gcc dot gnu.org 2011-01-07 19:27 ` [Bug target/47201] [4.5 " jakub at gcc dot gnu.org 2011-01-16 20:42 ` jakub at gcc dot gnu.org 2011-01-17 8:07 ` jakub at gcc dot gnu.org
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