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* [Bug tree-optimization/57517] New: internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913
@ 2013-06-03 17:25 decker at envsci dot rutgers.edu
2013-06-04 12:39 ` [Bug tree-optimization/57517] [4.7/4.8/4.9 Regression] " rguenth at gcc dot gnu.org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: decker at envsci dot rutgers.edu @ 2013-06-03 17:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517
Bug ID: 57517
Summary: internal compiler error: in eliminate_temp_copies, at
tree-predcom.c:1913
Product: gcc
Version: 4.8.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: decker at envsci dot rutgers.edu
The following code compiles at O2, but not O3.
~/test > gfortran481 -O3 -c module_diffusion_em.f90
module_diffusion_em.f90: In function ‘cal_helicity’:
module_diffusion_em.f90:1:0: internal compiler error: in eliminate_temp_copies,
at tree-predcom.c:1913
SUBROUTINE cal_helicity (uh, ph, phb, ht, ims, ime, jms, jme, kms, kme, &
^
0xc81b7a eliminate_temp_copies
../../gcc-4.8.1/gcc/tree-predcom.c:1913
0xc81b7a tree_predictive_commoning_loop
../../gcc-4.8.1/gcc/tree-predcom.c:2519
0xc82277 tree_predictive_commoning()
../../gcc-4.8.1/gcc/tree-predcom.c:2554
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.
~/test > cat module_diffusion_em.f90
SUBROUTINE cal_helicity (uh, ph, phb, ht, ims, ime, jms, jme, kms, kme, &
its, ite, jts, jte, kts, kte)
INTEGER, INTENT( IN ) :: ims, ime, jms, jme, kms, kme, &
its, ite, jts, jte, kts, kte
REAL, DIMENSION( ims:ime , jms:jme ), INTENT( IN ) :: ht
REAL, DIMENSION( ims:ime, kms:kme, jms:jme ), INTENT( IN ) :: ph, phb
REAL, DIMENSION( ims:ime, jms:jme ), INTENT( INOUT ) :: uh
INTEGER :: i, j, k, ktf, i_start, i_end, j_start, j_end
REAL :: zl, zu
REAL, DIMENSION( its-2:ite+2, kts:kte, jts-2:jte+2 ) :: wavg, rvort
real, parameter :: g = 9.81
DO j = j_start, j_end
DO k = kts, ktf
DO i = i_start, i_end
zu = (( ph(i ,k+1,j ) + phb(i ,k+1,j ) ) / g - ht(i ,j ) ) + &
(( ph(i-1,k+1,j ) + phb(i-1,k+1,j ) ) / g - ht(i-1,j ) ) + &
(( ph(i ,k+1,j-1) + phb(i ,k+1,j-1) ) / g - ht(i ,j-1) )
IF ( zl .GE. 2000. .AND. zu .LE. 5000. ) THEN
IF ( wavg(i,k,j) .GT. 0. .AND. wavg(i,k+1,j) .GT. 0. ) THEN
uh(i,j) = uh(i,j) + ( wavg(i,k,j) * rvort(i,k,j) + &
wavg(i,k+1,j) * rvort(i,k+1,j) ) * ( zu - zl )
ENDIF
ENDIF
END DO
END DO
END DO
END SUBROUTINE cal_helicity
~/test > gfortran481 -v
Using built-in specs.
COLLECT_GCC=/home/decker/local/gcc481/bin/gfortran481
COLLECT_LTO_WRAPPER=/home/decker/local/gcc481/libexec/gcc/x86_64-unknown-linux-gnu/4.8.1/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.8.1/configure --prefix=/home/decker/local/gcc481
--program-suffix=481 --enable-languages=c,c++,fortran
--with-gmp=/home/decker/local --with-mpfr=/home/decker/local
--with-mpc=/home/decker/local --with-isl=/home/decker/local
--with-cloog=/home/decker/local
Thread model: posix
gcc version 4.8.1 (GCC)
>From gcc-bugs-return-423751-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Jun 03 17:25:49 2013
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From: "jos at vandenoever dot info" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/57515] implement begin() and end() for fixed size arrays
Date: Mon, 03 Jun 2013 17:25:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: 4.7.2
X-Bugzilla-Keywords:
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: jos at vandenoever dot info
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
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X-Bugzilla-Changed-Fields: resolution
Message-ID: <bug-57515-4-XAVSaoHpaC@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-57515-4@http.gcc.gnu.org/bugzilla/>
References: <bug-57515-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idW515
jos at vandenoever dot info changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|INVALID |WORKSFORME
--- Comment #3 from jos at vandenoever dot info ---
I've expanded the comment with #include and std::. It *does* compile now, so
the bug was invalid.
#include <algorithm>
#include <iostream>
int
main() {
int some_list[]={ 1, 2, 3, 4, 5 };
int total = 0;
std::for_each(std::begin(some_list), std::end(some_list), [&total](int x) {
total += x;
});
std::cout << total << std::endl;
return 0;
}
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/57517] [4.7/4.8/4.9 Regression] internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913
2013-06-03 17:25 [Bug tree-optimization/57517] New: internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913 decker at envsci dot rutgers.edu
@ 2013-06-04 12:39 ` rguenth at gcc dot gnu.org
2013-10-30 12:50 ` rguenth at gcc dot gnu.org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-06-04 12:39 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.4.7
Target Milestone|--- |4.7.4
Summary|internal compiler error: in |[4.7/4.8/4.9 Regression]
|eliminate_temp_copies, at |internal compiler error: in
|tree-predcom.c:1913 |eliminate_temp_copies, at
| |tree-predcom.c:1913
Known to fail| |4.5.4, 4.6.4, 4.7.2, 4.8.0,
| |4.9.0
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/57517] [4.7/4.8/4.9 Regression] internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913
2013-06-03 17:25 [Bug tree-optimization/57517] New: internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913 decker at envsci dot rutgers.edu
2013-06-04 12:39 ` [Bug tree-optimization/57517] [4.7/4.8/4.9 Regression] " rguenth at gcc dot gnu.org
@ 2013-10-30 12:50 ` rguenth at gcc dot gnu.org
2013-11-18 15:04 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-10-30 12:50 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2013-10-30
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
> ./f951 -quiet t.f90 -O3
t.f90: In function 'cal_helicity':
t.f90:1:0: error: definition in block 9 does not dominate use in block 35
SUBROUTINE cal_helicity (uh, ph, phb, ht, ims, ime, jms, jme, kms, kme, &
^
for SSA_NAME: D_lsm0.70_121 in statement:
D_lsm0.70_120 = PHI <_314(33), D_lsm0.70_121(35)>
PHI argument
D_lsm0.70_121
for PHI node
D_lsm0.70_120 = PHI <_314(33), D_lsm0.70_121(35)>
t.f90:1:0: internal compiler error: verify_ssa failed
0xe45652 verify_ssa(bool)
/space/rguenther/src/svn/trunk/gcc/tree-ssa.c:1194
0xd9b5f8 verify_loop_closed_ssa(bool)
/space/rguenther/src/svn/trunk/gcc/tree-ssa-loop-manip.c:590
0xd9bcd9 gimple_duplicate_loop_to_header_edge(loop*, edge_def*, unsigned int,
simple_bitmap_def*, edge_def*, vec<edge_def*, va_heap, vl_ptr>*, int)
/space/rguenther/src/svn/trunk/gcc/tree-ssa-loop-manip.c:761
0xd9cd38 tree_transform_and_unroll_loop(loop*, unsigned int, edge_def*,
tree_niter_desc*, void (*)(loop*, void*), void*)
/space/rguenther/src/svn/trunk/gcc/tree-ssa-loop-manip.c:1179
0xcf0bc6 tree_predictive_commoning_loop
/space/rguenther/src/svn/trunk/gcc/tree-predcom.c:2520
gone latent on the trunk for me, still broken on the 4.8 branch.
I will have a look.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/57517] [4.7/4.8/4.9 Regression] internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913
2013-06-03 17:25 [Bug tree-optimization/57517] New: internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913 decker at envsci dot rutgers.edu
2013-06-04 12:39 ` [Bug tree-optimization/57517] [4.7/4.8/4.9 Regression] " rguenth at gcc dot gnu.org
2013-10-30 12:50 ` rguenth at gcc dot gnu.org
@ 2013-11-18 15:04 ` rguenth at gcc dot gnu.org
2013-11-19 9:21 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-18 15:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rakdver at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
We also fail to sink the loads (because appearantly we don't want to do that,
eh),
which in the end causes this havoc (not-always-executed combination).
C testcase:
int x[1024], y[1024], z[1024], w[1024];
void foo (void)
{
int i;
for (i = 1; i < 1024; ++i)
{
int a = x[i];
int b = y[i];
int c = x[i-1];
int d = y[i-1];
if (w[i])
z[i] = (a + b) + (c + d);
}
}
Fixed by for example the simple
Index: gcc/tree-predcom.c
===================================================================
--- gcc/tree-predcom.c (revision 204948)
+++ gcc/tree-predcom.c (working copy)
@@ -2068,7 +2068,11 @@ combinable_refs_p (dref r1, dref r2,
stmt = find_common_use_stmt (&name1, &name2);
- if (!stmt)
+ if (!stmt
+ /* A simple post-dominance check - make sure the combination
+ is executed under the same condition as the references. */
+ || (gimple_bb (stmt) != gimple_bb (r1->stmt)
+ && gimple_bb (stmt) != gimple_bb (r2->stmt)))
return false;
acode = gimple_assign_rhs_code (stmt);
Zdenek?
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/57517] [4.7/4.8/4.9 Regression] internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913
2013-06-03 17:25 [Bug tree-optimization/57517] New: internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913 decker at envsci dot rutgers.edu
` (2 preceding siblings ...)
2013-11-18 15:04 ` rguenth at gcc dot gnu.org
@ 2013-11-19 9:21 ` rguenth at gcc dot gnu.org
2013-11-19 9:23 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-19 9:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 19 09:21:07 2013
New Revision: 205010
URL: http://gcc.gnu.org/viewcvs?rev=205010&root=gcc&view=rev
Log:
2013-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/57517
* tree-predcom.c (combinable_refs_p): Verify the combination
is always executed when the refs are.
* gfortran.fortran-torture/compile/pr57517.f90: New testcase.
* gcc.dg/torture/pr57517.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr57517.c
trunk/gcc/testsuite/gfortran.fortran-torture/compile/pr57517.f90
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-predcom.c
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/57517] [4.7/4.8/4.9 Regression] internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913
2013-06-03 17:25 [Bug tree-optimization/57517] New: internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913 decker at envsci dot rutgers.edu
` (3 preceding siblings ...)
2013-11-19 9:21 ` rguenth at gcc dot gnu.org
@ 2013-11-19 9:23 ` rguenth at gcc dot gnu.org
2013-11-19 9:25 ` [Bug tree-optimization/57517] [4.7 " rguenth at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-19 9:23 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 19 09:23:52 2013
New Revision: 205012
URL: http://gcc.gnu.org/viewcvs?rev=205012&root=gcc&view=rev
Log:
2013-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/57517
* tree-predcom.c (combinable_refs_p): Verify the combination
is always executed when the refs are.
* gfortran.fortran-torture/compile/pr57517.f90: New testcase.
* gcc.dg/torture/pr57517.c: Likewise.
Added:
branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/torture/pr57517.c
branches/gcc-4_8-branch/gcc/testsuite/gfortran.fortran-torture/compile/pr57517.f90
Modified:
branches/gcc-4_8-branch/gcc/ChangeLog
branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
branches/gcc-4_8-branch/gcc/tree-predcom.c
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/57517] [4.7 Regression] internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913
2013-06-03 17:25 [Bug tree-optimization/57517] New: internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913 decker at envsci dot rutgers.edu
` (4 preceding siblings ...)
2013-11-19 9:23 ` rguenth at gcc dot gnu.org
@ 2013-11-19 9:25 ` rguenth at gcc dot gnu.org
2014-03-18 8:47 ` rguenth at gcc dot gnu.org
2014-03-18 8:48 ` rguenth at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-11-19 9:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.8.3, 4.9.0
Summary|[4.7/4.8/4.9 Regression] |[4.7 Regression] internal
|internal compiler error: in |compiler error: in
|eliminate_temp_copies, at |eliminate_temp_copies, at
|tree-predcom.c:1913 |tree-predcom.c:1913
Known to fail| |4.8.2
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed for trunk and 4.8.3 for now.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/57517] [4.7 Regression] internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913
2013-06-03 17:25 [Bug tree-optimization/57517] New: internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913 decker at envsci dot rutgers.edu
` (5 preceding siblings ...)
2013-11-19 9:25 ` [Bug tree-optimization/57517] [4.7 " rguenth at gcc dot gnu.org
@ 2014-03-18 8:47 ` rguenth at gcc dot gnu.org
2014-03-18 8:48 ` rguenth at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-03-18 8:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Mar 18 08:46:21 2014
New Revision: 208632
URL: http://gcc.gnu.org/viewcvs?rev=208632&root=gcc&view=rev
Log:
2014-03-18 Richard Biener <rguenther@suse.de>
Backport from mainline
2013-08-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/57521
* tree-if-conv.c (if_convertible_bb_p): Verify that at least
one edge is non-critical.
(find_phi_replacement_condition): Make sure to use a non-critical
edge. Cleanup and remove old bug workarounds.
(bb_postdominates_preds): Remove.
(if_convertible_loop_p_1): Do not compute post-dominators.
(combine_blocks): Do not free post-dominators.
(main_tree_if_conversion): Likewise.
* gcc.dg/torture/pr57521.c: New testcase.
2013-09-03 Richard Biener <rguenther@suse.de>
PR middle-end/57656
* fold-const.c (negate_expr_p): Fix division case.
(negate_expr): Likewise.
* gcc.dg/torture/pr57656.c: New testcase.
2013-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/57517
* tree-predcom.c (combinable_refs_p): Verify the combination
is always executed when the refs are.
* gfortran.fortran-torture/compile/pr57517.f90: New testcase.
* gcc.dg/torture/pr57517.c: Likewise.
Added:
branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr57517.c
branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr57521.c
branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr57656.c
branches/gcc-4_7-branch/gcc/testsuite/gfortran.fortran-torture/compile/pr57517.f90
Modified:
branches/gcc-4_7-branch/gcc/ChangeLog
branches/gcc-4_7-branch/gcc/fold-const.c
branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
branches/gcc-4_7-branch/gcc/tree-if-conv.c
branches/gcc-4_7-branch/gcc/tree-predcom.c
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/57517] [4.7 Regression] internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913
2013-06-03 17:25 [Bug tree-optimization/57517] New: internal compiler error: in eliminate_temp_copies, at tree-predcom.c:1913 decker at envsci dot rutgers.edu
` (6 preceding siblings ...)
2014-03-18 8:47 ` rguenth at gcc dot gnu.org
@ 2014-03-18 8:48 ` rguenth at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-03-18 8:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57517
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 9+ messages in thread
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