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* [Bug tree-optimization/52095] New: [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf
@ 2012-02-02 16:19 ro at gcc dot gnu.org
2012-02-03 10:13 ` [Bug tree-optimization/52095] " rguenth at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: ro at gcc dot gnu.org @ 2012-02-02 16:19 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52095
Bug #: 52095
Summary: [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in
fprintf
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: ro@gcc.gnu.org
Host: i386-pc-solaris2.10
Target: i386-pc-solaris2.10
Build: i386-pc-solaris2.10
Since 20111213, gcc.dg/sms-7.c FAILs on Solaris 10/x86, both 32 and 64-bit:
FAIL: gcc.dg/sms-7.c (internal compiler error)
FAIL: gcc.dg/sms-7.c (test for excess errors)
WARNING: gcc.dg/sms-7.c compilation failed to produce executable
Running cc1
$ cc1 -fpreprocessed sms-7.i -quiet -mtune=generic -march=pentium4 -O3
-fmodulo-sched -fstrict-aliasing -fdump-rtl-sms -fmodulo-sched-allow-regmoves
--param sms-min-sc=1 -o sms-7.s
gives:
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/sms-7.c: In function 'main':
/vol/gcc/src/hg/trunk/local/gcc/testsuite/gcc.dg/sms-7.c:45:1: internal
compiler error: Segmentation Fault
With gdb, I find:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1 (LWP 1)]
0xfee063dc in strlen () from /lib/libc.so.1
(gdb) where
#0 0xfee063dc in strlen () from /lib/libc.so.1
#1 0xfee6169a in _ndoprnt () from /lib/libc.so.1
#2 0xfee64229 in fprintf () from /lib/libc.so.1
#3 0x088689b0 in sms_schedule ()
at /vol/gcc/src/hg/trunk/local/gcc/modulo-sched.c:1414
#4 rest_of_handle_sms ()
at /vol/gcc/src/hg/trunk/local/gcc/modulo-sched.c:3338
#5 0x083bb744 in execute_one_pass (pass=pass@entry=0x8d82be0)
at /vol/gcc/src/hg/trunk/local/gcc/passes.c:2081
#6 0x083bba9d in execute_pass_list (pass=0x8d82be0)
at /vol/gcc/src/hg/trunk/local/gcc/passes.c:2136
#7 0x083bbab0 in execute_pass_list (pass=0x8d7f0a0)
at /vol/gcc/src/hg/trunk/local/gcc/passes.c:2137
#8 0x08497e86 in tree_rest_of_compilation (fndecl=0xfeaaa780)
at /vol/gcc/src/hg/trunk/local/gcc/tree-optimize.c:422
#9 0x0822ff07 in cgraph_expand_function (node=0xfea0e47c)
at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:1819
#10 0x08231795 in cgraph_expand_all_functions ()
at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:1886
#11 cgraph_optimize () at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:2200
#12 0x08231cbf in cgraph_finalize_compilation_unit ()
at /vol/gcc/src/hg/trunk/local/gcc/cgraphunit.c:1328
#13 0x0816dc1c in c_write_global_declarations ()
at /vol/gcc/src/hg/trunk/local/gcc/c-decl.c:10030
#14 0x0845241b in compile_file ()
at /vol/gcc/src/hg/trunk/local/gcc/toplev.c:573
#15 do_compile () at /vol/gcc/src/hg/trunk/local/gcc/toplev.c:1938
#16 toplev_main (argc=15, argv=0x80474c0)
at /vol/gcc/src/hg/trunk/local/gcc/toplev.c:2014
#17 0x08af940b in main (argc=15, argv=0x80474c0)
at /vol/gcc/src/hg/trunk/local/gcc/main.c:36
It turns out that sms_schedule calls fprintf with a NULL ptr since
insn_file(insn) is NULL at this point.
This is a regression from 4.6.
Rainer
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/52095] [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf
2012-02-02 16:19 [Bug tree-optimization/52095] New: [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf ro at gcc dot gnu.org
@ 2012-02-03 10:13 ` rguenth at gcc dot gnu.org
2012-02-03 12:49 ` [Bug rtl-optimization/52095] " jakub at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-02-03 10:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52095
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.7.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/52095] [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf
2012-02-02 16:19 [Bug tree-optimization/52095] New: [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf ro at gcc dot gnu.org
2012-02-03 10:13 ` [Bug tree-optimization/52095] " rguenth at gcc dot gnu.org
@ 2012-02-03 12:49 ` jakub at gcc dot gnu.org
2012-02-03 12:51 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-02-03 12:49 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52095
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2012-02-03
CC| |jakub at gcc dot gnu.org
Component|tree-optimization |rtl-optimization
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
Ever Confirmed|0 |1
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/52095] [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf
2012-02-02 16:19 [Bug tree-optimization/52095] New: [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf ro at gcc dot gnu.org
2012-02-03 10:13 ` [Bug tree-optimization/52095] " rguenth at gcc dot gnu.org
2012-02-03 12:49 ` [Bug rtl-optimization/52095] " jakub at gcc dot gnu.org
@ 2012-02-03 12:51 ` jakub at gcc dot gnu.org
2012-02-03 13:07 ` ro at CeBiTec dot Uni-Bielefeld.DE
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-02-03 12:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52095
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-03 12:50:33 UTC ---
Created attachment 26562
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26562
gcc47-pr52095.patch
Untested fix.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/52095] [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf
2012-02-02 16:19 [Bug tree-optimization/52095] New: [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf ro at gcc dot gnu.org
` (2 preceding siblings ...)
2012-02-03 12:51 ` jakub at gcc dot gnu.org
@ 2012-02-03 13:07 ` ro at CeBiTec dot Uni-Bielefeld.DE
2012-02-04 16:51 ` jakub at gcc dot gnu.org
2012-02-04 16:52 ` jakub at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: ro at CeBiTec dot Uni-Bielefeld.DE @ 2012-02-03 13:07 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52095
--- Comment #2 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2012-02-03 13:06:19 UTC ---
> --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-03 12:50:33 UTC ---
> Untested fix.
I've just re-built cc1 with the patch and re-run the gcc.dg/sms-7.c
test: passes for both 32 and 64-bit now.
Thanks.
Rainer
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/52095] [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf
2012-02-02 16:19 [Bug tree-optimization/52095] New: [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf ro at gcc dot gnu.org
` (3 preceding siblings ...)
2012-02-03 13:07 ` ro at CeBiTec dot Uni-Bielefeld.DE
@ 2012-02-04 16:51 ` jakub at gcc dot gnu.org
2012-02-04 16:52 ` jakub at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-02-04 16:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52095
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-04 16:51:37 UTC ---
Author: jakub
Date: Sat Feb 4 16:51:31 2012
New Revision: 183895
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183895
Log:
PR rtl-optimization/52095
* modulo-sched.c (dump_insn_locator): New function.
(loop_canon_p, sms_schedule): Use it.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/modulo-sched.c
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug rtl-optimization/52095] [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf
2012-02-02 16:19 [Bug tree-optimization/52095] New: [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf ro at gcc dot gnu.org
` (4 preceding siblings ...)
2012-02-04 16:51 ` jakub at gcc dot gnu.org
@ 2012-02-04 16:52 ` jakub at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-02-04 16:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52095
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-04 16:52:26 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2012-02-04 16:52 UTC | newest]
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2012-02-02 16:19 [Bug tree-optimization/52095] New: [4.7 regression] ICE compiling gcc.dg/sms-7.c: SEGV in fprintf ro at gcc dot gnu.org
2012-02-03 10:13 ` [Bug tree-optimization/52095] " rguenth at gcc dot gnu.org
2012-02-03 12:49 ` [Bug rtl-optimization/52095] " jakub at gcc dot gnu.org
2012-02-03 12:51 ` jakub at gcc dot gnu.org
2012-02-03 13:07 ` ro at CeBiTec dot Uni-Bielefeld.DE
2012-02-04 16:51 ` jakub at gcc dot gnu.org
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