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* [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested
@ 2015-03-31 11:26 vries at gcc dot gnu.org
2015-03-31 11:55 ` [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code " vries at gcc dot gnu.org
` (14 more replies)
0 siblings, 15 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-03-31 11:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
Bug ID: 65637
Summary: expand_omp_for_static_chunk ssa-code is untested
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
This is the more generic version of
https://gcc.gnu.org/ml/gcc-patches/2014-11/msg01149.html .
Currently, ssa-handling code in expand_omp_for_static_chunk is dead and not
exercised by testing.
Ssa-handling code in omp-low.c is only triggered by pass_parallelize_loops, and
that pass doesn't specify a chunk size on the GIMPLE_OMP_FOR it constructs, so
that will only call expand_omp_for_static_nochunk.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
@ 2015-03-31 11:55 ` vries at gcc dot gnu.org
2015-03-31 12:14 ` vries at gcc dot gnu.org
` (13 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-03-31 11:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #1 from vries at gcc dot gnu.org ---
A patch like this will excercise the code:
...
diff --git a/gcc/tree-parloops.c b/gcc/tree-parloops.c
index 62a6444..b600b2c 100644
--- a/gcc/tree-parloops.c
+++ b/gcc/tree-parloops.c
@@ -1719,6 +1719,7 @@ create_parallel_loop (struct loop *loop, tree loop_fn,
tree data,
type = TREE_TYPE (cvar);
t = build_omp_clause (loc, OMP_CLAUSE_SCHEDULE);
OMP_CLAUSE_SCHEDULE_KIND (t) = OMP_CLAUSE_SCHEDULE_STATIC;
+ OMP_CLAUSE_SCHEDULE_CHUNK_EXPR(t) = integer_one_node;
for_stmt = gimple_build_omp_for (NULL, GF_OMP_FOR_KIND_FOR, t, 1, NULL);
gimple_set_location (for_stmt, loc);
...
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
2015-03-31 11:55 ` [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code " vries at gcc dot gnu.org
@ 2015-03-31 12:14 ` vries at gcc dot gnu.org
2015-04-03 11:16 ` vries at gcc dot gnu.org
` (12 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-03-31 12:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #2 from vries at gcc dot gnu.org ---
(In reply to vries from comment #1)
> A patch like this will excercise the code:
Indeed:
...
$ grep -i 'internal compiler error' build/gcc/testsuite/gcc/gcc.log
gcc/testsuite/gcc.dg/autopar/pr46099.c:17:3: internal compiler error:
Segmentation fault
gcc/testsuite/gcc.dg/autopar/pr46099.c:17:3: internal compiler error:
Segmentation fault
gcc/testsuite/gcc.dg/autopar/pr46099.c:17:3: internal compiler error:
Segmentation fault
FAIL: gcc.dg/autopar/pr46099.c (internal compiler error)
gcc/testsuite/gcc.dg/autopar/pr46099.c:17:3: internal compiler error:
Segmentation fault
gcc/testsuite/gcc.dg/autopar/pr49580.c:24:9: internal compiler error:
Segmentation fault
gcc/testsuite/gcc.dg/autopar/pr49580.c:24:9: internal compiler error:
Segmentation fault
gcc/testsuite/gcc.dg/autopar/pr49580.c:24:9: internal compiler error:
Segmentation fault
FAIL: gcc.dg/autopar/pr49580.c (internal compiler error)
gcc/testsuite/gcc.dg/autopar/pr49580.c:24:9: internal compiler error:
Segmentation fault
gcc/testsuite/gcc.dg/autopar/reduc-3.c:21:3: internal compiler error:
Segmentation fault
gcc/testsuite/gcc.dg/autopar/reduc-3.c:21:3: internal compiler error:
Segmentation fault
gcc/testsuite/gcc.dg/autopar/reduc-3.c:21:3: internal compiler error:
Segmentation fault
...
FAIL: gcc.dg/autopar/reduc-3.c (internal compiler error)
gcc/testsuite/gcc.dg/autopar/reduc-3.c:21:3: internal compiler error:
Segmentation fault
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
2015-03-31 11:55 ` [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code " vries at gcc dot gnu.org
2015-03-31 12:14 ` vries at gcc dot gnu.org
@ 2015-04-03 11:16 ` vries at gcc dot gnu.org
2015-04-03 14:35 ` vries at gcc dot gnu.org
` (11 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-04-03 11:16 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #3 from vries at gcc dot gnu.org ---
Created attachment 35221
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35221&action=edit
patch for autopar-1.exe
For autopar-1.c, the original loop has a loop phi:
# s.5_20 = PHI <s.5_12(4), 0.0(20)>
After expand_omp_for_static_chunk, there's an inner and an outer loop. The
outer loop phi is:
# s.5_11 = PHI <0.0(15), s.5_12(21)>
and the inner loop phi is:
# s.5_20 = PHI <s.5_12(4), 0.0(20)>
The inner loop phi should not have 0.0 as argument, but the result of the outer
loop phi:
# s.5_20 = PHI <s.5_12(4), s.5_11(20)>
This patch fixes the inner loop phi, and autopar-1.exe passes.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (2 preceding siblings ...)
2015-04-03 11:16 ` vries at gcc dot gnu.org
@ 2015-04-03 14:35 ` vries at gcc dot gnu.org
2015-04-03 20:30 ` vries at gcc dot gnu.org
` (10 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-04-03 14:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #4 from vries at gcc dot gnu.org ---
Created attachment 35224
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35224&action=edit
current state of patch series
Current state of patch series. Passes libgomp graphite.exp, libgomp c.exp and
gcc autopar.exp.
Patch series:
1. Set chunk_size to one for parloops parallel
2. Fix assert after loop over phis and edge_var_map
3. Use edge from iter_part_bb to fin_bb
4. Fix inner loop reduction phi argument
5. Handle case that fin_bb has more than one predecessor
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (3 preceding siblings ...)
2015-04-03 14:35 ` vries at gcc dot gnu.org
@ 2015-04-03 20:30 ` vries at gcc dot gnu.org
2015-04-15 13:26 ` vries at gcc dot gnu.org
` (9 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-04-03 20:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #5 from vries at gcc dot gnu.org ---
(In reply to vries from comment #4)
> Created attachment 35224 [details]
> current state of patch series
>
> Current state of patch series. Passes libgomp graphite.exp, libgomp c.exp
> and gcc autopar.exp.
>
> Patch series:
> 1. Set chunk_size to one for parloops parallel
> 2. Fix assert after loop over phis and edge_var_map
> 3. Use edge from iter_part_bb to fin_bb
> 4. Fix inner loop reduction phi argument
> 5. Handle case that fin_bb has more than one predecessor
Bootstrapped and reg-tested on x86_64, no issues found.
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (4 preceding siblings ...)
2015-04-03 20:30 ` vries at gcc dot gnu.org
@ 2015-04-15 13:26 ` vries at gcc dot gnu.org
2015-05-18 13:22 ` vries at gcc dot gnu.org
` (8 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-04-15 13:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
vries at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
--- Comment #6 from vries at gcc dot gnu.org ---
https://gcc.gnu.org/ml/gcc-patches/2015-04/msg00757.html
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (5 preceding siblings ...)
2015-04-15 13:26 ` vries at gcc dot gnu.org
@ 2015-05-18 13:22 ` vries at gcc dot gnu.org
2015-05-18 13:23 ` vries at gcc dot gnu.org
` (7 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-05-18 13:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #7 from vries at gcc dot gnu.org ---
Author: vries
Date: Mon May 18 13:22:15 2015
New Revision: 223290
URL: https://gcc.gnu.org/viewcvs?rev=223290&root=gcc&view=rev
Log:
Fix gcc_assert in expand_omp_for_static_chunk
2015-05-18 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/65637
* omp-low.c (expand_omp_for_static_chunk): Fix gcc_assert for the case
that head is NULL.
Modified:
branches/gomp-4_0-branch/gcc/ChangeLog
branches/gomp-4_0-branch/gcc/omp-low.c
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (7 preceding siblings ...)
2015-05-18 13:23 ` vries at gcc dot gnu.org
@ 2015-05-18 13:23 ` vries at gcc dot gnu.org
2015-06-08 12:34 ` vries at gcc dot gnu.org
` (5 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-05-18 13:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #8 from vries at gcc dot gnu.org ---
Author: vries
Date: Mon May 18 13:22:26 2015
New Revision: 223291
URL: https://gcc.gnu.org/viewcvs?rev=223291&root=gcc&view=rev
Log:
Fix inner loop phi in expand_omp_for_static_chunk
2015-05-18 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/65637
* omp-low.c (find_phi_with_arg_on_edge): New function.
(expand_omp_for_static_chunk): Fix inner loop phi.
Modified:
branches/gomp-4_0-branch/gcc/ChangeLog
branches/gomp-4_0-branch/gcc/omp-low.c
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (6 preceding siblings ...)
2015-05-18 13:22 ` vries at gcc dot gnu.org
@ 2015-05-18 13:23 ` vries at gcc dot gnu.org
2015-05-18 13:23 ` vries at gcc dot gnu.org
` (6 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-05-18 13:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #9 from vries at gcc dot gnu.org ---
Author: vries
Date: Mon May 18 13:22:36 2015
New Revision: 223292
URL: https://gcc.gnu.org/viewcvs?rev=223292&root=gcc&view=rev
Log:
Handle 2 preds for fin_bb in expand_omp_for_static_chunk
2015-05-18 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/65637
* omp-low.c (expand_omp_for_static_chunk): Handle case that fin_bb has
2
predecessors.
Modified:
branches/gomp-4_0-branch/gcc/ChangeLog
branches/gomp-4_0-branch/gcc/omp-low.c
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (8 preceding siblings ...)
2015-05-18 13:23 ` vries at gcc dot gnu.org
@ 2015-06-08 12:34 ` vries at gcc dot gnu.org
2015-08-31 12:06 ` vries at gcc dot gnu.org
` (4 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-06-08 12:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #10 from vries at gcc dot gnu.org ---
ping ^2: https://gcc.gnu.org/ml/gcc-patches/2015-06/msg00558.html
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (9 preceding siblings ...)
2015-06-08 12:34 ` vries at gcc dot gnu.org
@ 2015-08-31 12:06 ` vries at gcc dot gnu.org
2015-09-03 11:01 ` vries at gcc dot gnu.org
` (3 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-08-31 12:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #11 from vries at gcc dot gnu.org ---
Resubmitted at https://gcc.gnu.org/ml/gcc-patches/2015-08/msg01867.html
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (10 preceding siblings ...)
2015-08-31 12:06 ` vries at gcc dot gnu.org
@ 2015-09-03 11:01 ` vries at gcc dot gnu.org
2015-09-03 11:01 ` vries at gcc dot gnu.org
` (2 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-09-03 11:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #14 from vries at gcc dot gnu.org ---
Author: vries
Date: Thu Sep 3 11:01:22 2015
New Revision: 227438
URL: https://gcc.gnu.org/viewcvs?rev=227438&root=gcc&view=rev
Log:
Handle 2 preds for fin_bb in expand_omp_for_static_chunk
2015-09-03 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/65637
* omp-low.c (expand_omp_for_static_chunk): Handle case that fin_bb has
2
predecessors.
* gcc.dg/autopar/reduc-4.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/autopar/reduc-4.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/omp-low.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (12 preceding siblings ...)
2015-09-03 11:01 ` vries at gcc dot gnu.org
@ 2015-09-03 11:01 ` vries at gcc dot gnu.org
2015-09-03 11:06 ` vries at gcc dot gnu.org
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-09-03 11:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #12 from vries at gcc dot gnu.org ---
Author: vries
Date: Thu Sep 3 11:01:05 2015
New Revision: 227436
URL: https://gcc.gnu.org/viewcvs?rev=227436&root=gcc&view=rev
Log:
Fix gcc_assert in expand_omp_for_static_chunk
2015-09-03 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/65637
* omp-low.c (expand_omp_for_static_chunk): Fix gcc_assert for the case
that head is NULL.
* gcc.dg/autopar/pr46099-2.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/autopar/pr46099-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/omp-low.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (11 preceding siblings ...)
2015-09-03 11:01 ` vries at gcc dot gnu.org
@ 2015-09-03 11:01 ` vries at gcc dot gnu.org
2015-09-03 11:01 ` vries at gcc dot gnu.org
2015-09-03 11:06 ` vries at gcc dot gnu.org
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-09-03 11:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
--- Comment #13 from vries at gcc dot gnu.org ---
Author: vries
Date: Thu Sep 3 11:01:14 2015
New Revision: 227437
URL: https://gcc.gnu.org/viewcvs?rev=227437&root=gcc&view=rev
Log:
Fix inner loop phi in expand_omp_for_static_chunk
2015-09-03 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/65637
* omp-low.c (find_phi_with_arg_on_edge): New function.
(expand_omp_for_static_chunk): Fix inner loop phi.
* testsuite/libgomp.c/autopar-2.c: New test.
Added:
trunk/libgomp/testsuite/libgomp.c/autopar-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/omp-low.c
trunk/libgomp/ChangeLog
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/65637] expand_omp_for_static_chunk ssa-handling code is untested
2015-03-31 11:26 [Bug tree-optimization/65637] New: expand_omp_for_static_chunk ssa-code is untested vries at gcc dot gnu.org
` (13 preceding siblings ...)
2015-09-03 11:01 ` vries at gcc dot gnu.org
@ 2015-09-03 11:06 ` vries at gcc dot gnu.org
14 siblings, 0 replies; 16+ messages in thread
From: vries at gcc dot gnu.org @ 2015-09-03 11:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65637
vries at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #15 from vries at gcc dot gnu.org ---
patch series committed to trunk, with testcases (made possible by the
introduction of --param parloops-chunk-size)
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