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* [Bug middle-end/59152] New: [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const
@ 2013-11-16 16:15 zsojka at seznam dot cz
2013-11-18 12:47 ` [Bug middle-end/59152] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: zsojka at seznam dot cz @ 2013-11-16 16:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59152
Bug ID: 59152
Summary: [4.9 Regression] ICE: loop 2's latch does not have an
edge to its header with -fopenmp -fipa-pure-const
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Created attachment 31229
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31229&action=edit
reduced testcase
Compiler output:
$ gcc -fopenmp -fipa-pure-const testcase.c
testcase.c: In function 'foo._omp_fn.0':
testcase.c:10:1: error: loop 2's latch does not have an edge to its header
}
^
testcase.c:10:1: internal compiler error: in verify_loop_structure, at
cfgloop.c:1649
0x70b713 verify_loop_structure()
/mnt/svn/gcc-trunk/gcc/cfgloop.c:1649
0x94fc5a loop_optimizer_init(unsigned int)
/mnt/svn/gcc-trunk/gcc/loop-init.c:111
0x12facc3 analyze_function
/mnt/svn/gcc-trunk/gcc/ipa-pure-const.c:781
0x12fb961 pure_const_generate_summary
/mnt/svn/gcc-trunk/gcc/ipa-pure-const.c:924
0x9dd246 execute_ipa_summary_passes(ipa_opt_pass_d*)
/mnt/svn/gcc-trunk/gcc/passes.c:2015
0x730265 ipa_passes
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:2014
0x730265 compile()
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:2121
0x7304b4 finalize_compilation_unit()
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:2275
0x5e3c63 c_write_global_declarations()
/mnt/svn/gcc-trunk/gcc/c/c-decl.c:10374
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$ gcc -v
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-204897-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-204897-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20131116 (experimental) (GCC)
Tested revisions:
r204897 - crash
4.8 r204890 - OK
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/59152] [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const
2013-11-16 16:15 [Bug middle-end/59152] New: [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const zsojka at seznam dot cz
@ 2013-11-18 12:47 ` rguenth at gcc dot gnu.org
2013-11-21 14:49 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-18 12:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59152
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Hm, -O0 and loops. IPA opts are not really supposed to run at -O0. But
the issue here seems to be that this loop has multiple latches but has
->latch != NULL.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/59152] [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const
2013-11-16 16:15 [Bug middle-end/59152] New: [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const zsojka at seznam dot cz
2013-11-18 12:47 ` [Bug middle-end/59152] " rguenth at gcc dot gnu.org
@ 2013-11-21 14:49 ` rguenth at gcc dot gnu.org
2013-11-26 13:24 ` jakub at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-21 14:49 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59152
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/59152] [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const
2013-11-16 16:15 [Bug middle-end/59152] New: [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const zsojka at seznam dot cz
2013-11-18 12:47 ` [Bug middle-end/59152] " rguenth at gcc dot gnu.org
2013-11-21 14:49 ` rguenth at gcc dot gnu.org
@ 2013-11-26 13:24 ` jakub at gcc dot gnu.org
2013-11-26 20:39 ` jakub at gcc dot gnu.org
2013-11-26 20:56 ` jakub at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-11-26 13:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59152
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |jakub at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31298
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31298&action=edit
gcc49-pr59152.patch
Untested fix.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/59152] [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const
2013-11-16 16:15 [Bug middle-end/59152] New: [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const zsojka at seznam dot cz
` (2 preceding siblings ...)
2013-11-26 13:24 ` jakub at gcc dot gnu.org
@ 2013-11-26 20:39 ` jakub at gcc dot gnu.org
2013-11-26 20:56 ` jakub at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-11-26 20:39 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59152
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Nov 26 20:38:10 2013
New Revision: 205410
URL: http://gcc.gnu.org/viewcvs?rev=205410&root=gcc&view=rev
Log:
PR middle-end/59152
* omp-low.c (expand_omp_for_static_chunk): Don't set loop->latch
for the inner loop if collapse_bb is non-NULL.
(expand_omp_simd): Use cont_bb rather than e->dest as latch.
* c-c++-common/gomp/pr59152.c: New test.
Added:
trunk/gcc/testsuite/c-c++-common/gomp/pr59152.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/omp-low.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/59152] [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const
2013-11-16 16:15 [Bug middle-end/59152] New: [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const zsojka at seznam dot cz
` (3 preceding siblings ...)
2013-11-26 20:39 ` jakub at gcc dot gnu.org
@ 2013-11-26 20:56 ` jakub at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-11-26 20:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59152
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> ---
Fixed.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2013-11-16 16:15 [Bug middle-end/59152] New: [4.9 Regression] ICE: loop 2's latch does not have an edge to its header with -fopenmp -fipa-pure-const zsojka at seznam dot cz
2013-11-18 12:47 ` [Bug middle-end/59152] " rguenth at gcc dot gnu.org
2013-11-21 14:49 ` rguenth at gcc dot gnu.org
2013-11-26 13:24 ` jakub at gcc dot gnu.org
2013-11-26 20:39 ` jakub at gcc dot gnu.org
2013-11-26 20:56 ` jakub at gcc dot gnu.org
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