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* [Bug rtl-optimization/45130] New: -fcompare-debug failure with -Os -fsched-spec-load -fschedule-insns
@ 2010-07-29 13:59 zsojka at seznam dot cz
2010-07-29 14:00 ` [Bug rtl-optimization/45130] " zsojka at seznam dot cz
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: zsojka at seznam dot cz @ 2010-07-29 13:59 UTC (permalink / raw)
To: gcc-bugs
Command line:
$ gcc -Os -fsched-spec-load -fschedule-insns -fcompare-debug testcase.c
Valgrind output:
$ valgrind --trace-children=yes --track-origins=yes -q
/mnt/svn/gcc-trunk/binary-162653-lto-fortran-checking-yes-rtl-df/bin/gcc -Os
-fsched-spec-load -fschedule-insns -fcompare-debug testcase.c
==14681== Conditional jump or move depends on uninitialised value(s)
==14681== at 0x70F09B: walk_gimple_stmt (gimple.c:1627)
==14681== by 0x95F153: dump_enumerated_decls (tree-ssa-live.c:1264)
==14681== by 0x901718: execute_cleanup_cfg_post_optimizing
(tree-optimize.c:214)
==14681== by 0x7BD3EB: execute_one_pass (passes.c:1564)
==14681== by 0x7BD684: execute_pass_list (passes.c:1619)
==14681== by 0x9020A5: tree_rest_of_compilation (tree-optimize.c:452)
==14681== by 0xAB96E5: cgraph_expand_function (cgraphunit.c:1643)
==14681== by 0xABC579: cgraph_optimize (cgraphunit.c:1722)
==14681== by 0xABCB6A: cgraph_finalize_compilation_unit (cgraphunit.c:1185)
==14681== by 0x4DF86E: c_write_global_declarations (c-decl.c:9698)
==14681== by 0x8AB075: toplev_main (toplev.c:957)
==14681== by 0x6589BBC: (below main) (in /lib64/libc-2.11.2.so)
==14681== Uninitialised value was created by a stack allocation
==14681== at 0x95F0A0: dump_enumerated_decls (tree-ssa-live.c:1251)
==14681==
==15989== Conditional jump or move depends on uninitialised value(s)
==15989== at 0x70F09B: walk_gimple_stmt (gimple.c:1627)
==15989== by 0x95F153: dump_enumerated_decls (tree-ssa-live.c:1264)
==15989== by 0x901718: execute_cleanup_cfg_post_optimizing
(tree-optimize.c:214)
==15989== by 0x7BD3EB: execute_one_pass (passes.c:1564)
==15989== by 0x7BD684: execute_pass_list (passes.c:1619)
==15989== by 0x9020A5: tree_rest_of_compilation (tree-optimize.c:452)
==15989== by 0xAB96E5: cgraph_expand_function (cgraphunit.c:1643)
==15989== by 0xABC579: cgraph_optimize (cgraphunit.c:1722)
==15989== by 0xABCB6A: cgraph_finalize_compilation_unit (cgraphunit.c:1185)
==15989== by 0x4DF86E: c_write_global_declarations (c-decl.c:9698)
==15989== by 0x8AB075: toplev_main (toplev.c:957)
==15989== by 0x6589BBC: (below main) (in /lib64/libc-2.11.2.so)
==15989== Uninitialised value was created by a stack allocation
==15989== at 0x95F0A0: dump_enumerated_decls (tree-ssa-live.c:1251)
==15989==
gcc: error: testcase.c: -fcompare-debug failure
I don't know if the uninitialised read has anything to do with this problem.
Tested revisions:
r162653 - fail
r162456 - OK
--
Summary: -fcompare-debug failure with -Os -fsched-spec-load -
fschedule-insns
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: zsojka at seznam dot cz
GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45130
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/45130] -fcompare-debug failure with -Os -fsched-spec-load -fschedule-insns
2010-07-29 13:59 [Bug rtl-optimization/45130] New: -fcompare-debug failure with -Os -fsched-spec-load -fschedule-insns zsojka at seznam dot cz
@ 2010-07-29 14:00 ` zsojka at seznam dot cz
2010-07-30 9:48 ` jakub at gcc dot gnu dot org
2010-09-04 15:28 ` [Bug debug/45130] " aoliva at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: zsojka at seznam dot cz @ 2010-07-29 14:00 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from zsojka at seznam dot cz 2010-07-29 13:59 -------
Created an attachment (id=21350)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21350&action=view)
reduced testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45130
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/45130] -fcompare-debug failure with -Os -fsched-spec-load -fschedule-insns
2010-07-29 13:59 [Bug rtl-optimization/45130] New: -fcompare-debug failure with -Os -fsched-spec-load -fschedule-insns zsojka at seznam dot cz
2010-07-29 14:00 ` [Bug rtl-optimization/45130] " zsojka at seznam dot cz
@ 2010-07-30 9:48 ` jakub at gcc dot gnu dot org
2010-09-04 15:28 ` [Bug debug/45130] " aoliva at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: jakub at gcc dot gnu dot org @ 2010-07-30 9:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from jakub at gcc dot gnu dot org 2010-07-30 09:48 -------
This is likely dup of PR45136. Again, NOTE_INSN_DELETED moved just with -g and
kept where it was with -g0.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-07-30 09:48:43
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45130
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug debug/45130] -fcompare-debug failure with -Os -fsched-spec-load -fschedule-insns
2010-07-29 13:59 [Bug rtl-optimization/45130] New: -fcompare-debug failure with -Os -fsched-spec-load -fschedule-insns zsojka at seznam dot cz
2010-07-29 14:00 ` [Bug rtl-optimization/45130] " zsojka at seznam dot cz
2010-07-30 9:48 ` jakub at gcc dot gnu dot org
@ 2010-09-04 15:28 ` aoliva at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: aoliva at gcc dot gnu dot org @ 2010-09-04 15:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from aoliva at gcc dot gnu dot org 2010-09-04 15:28 -------
*** This bug has been marked as a duplicate of 45136 ***
--
aoliva at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45130
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-09-04 15:28 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-07-29 13:59 [Bug rtl-optimization/45130] New: -fcompare-debug failure with -Os -fsched-spec-load -fschedule-insns zsojka at seznam dot cz
2010-07-29 14:00 ` [Bug rtl-optimization/45130] " zsojka at seznam dot cz
2010-07-30 9:48 ` jakub at gcc dot gnu dot org
2010-09-04 15:28 ` [Bug debug/45130] " aoliva at gcc dot gnu dot org
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