* [Bug tree-optimization/61634] [4.8/4.9/4.10 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
@ 2014-06-28 7:36 ` trippels at gcc dot gnu.org
2014-06-30 13:27 ` jakub at gcc dot gnu.org
` (10 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: trippels at gcc dot gnu.org @ 2014-06-28 7:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-06-28
CC| |trippels at gcc dot gnu.org
Target Milestone|--- |4.8.4
Summary|[4.8.3/4.9.1] ICE in in |[4.8/4.9/4.10 Regression]
|vect_get_vec_def_for_operan |ICE in in
|d, at |vect_get_vec_def_for_operan
|tree-vect-stmts.c:1423 |d, at
| |tree-vect-stmts.c:1423
Ever confirmed|0 |1
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Confirmed.
markus@x4 tmp % cat autocorr.i
int a, b, c, d;
short *e;
void fn1 (int p1[], int p2, int p3[], int p4[], int p5[], int *p6)
{
int f;
c = *p1;
d = *p5;
(void)p6;
for (; a; a--)
{
f = *e >> 2;
*e++ = f;
b += f * f;
f = *e >> 2;
*e++ = f;
}
p4[0] = p3[0];
for (;; p2--)
;
}
markus@x4 tmp % gcc -O3 -fwrapv -c autocorr.i
autocorr.i: In function ‘fn1’:
autocorr.i:3:6: internal compiler error: in vect_get_vec_def_for_operand, at
tree-vect-stmts.c:1449
void fn1 (int p1[], int p2, int p3[], int p4[], int p5[], int *p6)
^
>From gcc-bugs-return-455189-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Jun 28 07:46:31 2014
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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/58051] [DR1579] No named return value optimization when returned object is implicitly converted
Date: Sat, 28 Jun 2014 07:46:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idX051
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Sat Jun 28 07:45:27 2014
New Revision: 212099
URL: https://gcc.gnu.org/viewcvs?rev!2099&root=gcc&view=rev
Log:
gcc/cp:
DR 1579
PR c++/58051
* typeck.c (check_return_expr): Lookup as an rvalue even when the
types aren't the same.
gcc/testsuite:
* g++.dg/cpp0x/elision_conv.C: New.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/elision_conv.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/typeck.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8/4.9/4.10 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
2014-06-28 7:36 ` [Bug tree-optimization/61634] [4.8/4.9/4.10 Regression] " trippels at gcc dot gnu.org
@ 2014-06-30 13:27 ` jakub at gcc dot gnu.org
2014-07-07 11:08 ` rguenth at gcc dot gnu.org
` (9 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-06-30 13:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r175074.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8/4.9/4.10 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
2014-06-28 7:36 ` [Bug tree-optimization/61634] [4.8/4.9/4.10 Regression] " trippels at gcc dot gnu.org
2014-06-30 13:27 ` jakub at gcc dot gnu.org
@ 2014-07-07 11:08 ` rguenth at gcc dot gnu.org
2014-07-08 11:29 ` rguenth at gcc dot gnu.org
` (8 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-07-07 11:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
I'll have a look.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8/4.9/4.10 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
` (2 preceding siblings ...)
2014-07-07 11:08 ` rguenth at gcc dot gnu.org
@ 2014-07-08 11:29 ` rguenth at gcc dot gnu.org
2014-11-25 16:35 ` [Bug tree-optimization/61634] [4.8/4.9/5 " rguenth at gcc dot gnu.org
` (7 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-07-08 11:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
We have
patt_24 = DOT_PROD_EXPR <_12, _12, prephitmp_48>;
and
_12 = _11 >> 2;
is not STMT_VINFO_IN_PATTERN_P but it doesn't have a vec_stmt yet even
though it is there:
vect__12.29_90 = vect__11.27_87 >> 2;
vect__12.29_91 = vect__11.28_89 >> 2;
_12 = _11 >> 2;
that's because vectorizable_shift doesn't assign to *vec_stmt!?
if (slp_node)
continue;
if (j == 0)
STMT_VINFO_VEC_STMT (stmt_info) = *vec_stmt = new_stmt;
else
STMT_VINFO_RELATED_STMT (prev_stmt_info) = new_stmt;
if it's part of an SLP node... (pure_slp).
I'm not sure we can vectorize this case.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8/4.9/5 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
` (3 preceding siblings ...)
2014-07-08 11:29 ` rguenth at gcc dot gnu.org
@ 2014-11-25 16:35 ` rguenth at gcc dot gnu.org
2014-11-27 9:34 ` rguenth at gcc dot gnu.org
` (6 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-25 16:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue seems that we fail to detect hybrid SLP here because
vect_detect_hybrid_slp_stmts walks immediate uses of SLP defs but those
do not reach pattern stmts but only original ones. In this case we have
_11 = *prephitmp_46;
_12 = _11 >> 2;
f_13 = (int) _12;
*prephitmp_46 = _12;
_17 = f_13 * f_13;
where the SLP def _12 is used in f_13 = (int) _12; but that stmt is marked
as vect_unused_in_scope because it feeds a stmt that was pattern detected
as widening multiplication. But we never visit that stmt, as its
immediate uses are not accounted for (pattern stmts never get updated).
That makes the vect_detect_hybrid_slp_stmts functions non-functional
for non-trivial patterns. We can "fix" this by marking the stmts
in some way and make sure to account for them in the loop. For the
testcase forcing hybrid SLP by making !STMT_VINFO_RELEVANT stmts
force it fixes it.
I think that the best thing to do is to re-write hybrid SLP detection
in terms of walking all stmts in the loop, similar to
vect_mark_stmts_to_be_vectorized and mark pure SLP stmts as hybrid.
The flag then still has to be propagated to the SLP tree children of
such node.
I have a prototype but that still needs quite some TLC.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8/4.9/5 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
` (4 preceding siblings ...)
2014-11-25 16:35 ` [Bug tree-optimization/61634] [4.8/4.9/5 " rguenth at gcc dot gnu.org
@ 2014-11-27 9:34 ` rguenth at gcc dot gnu.org
2014-11-27 9:37 ` [Bug tree-optimization/61634] [4.8/4.9 " rguenth at gcc dot gnu.org
` (5 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-27 9:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Nov 27 09:33:32 2014
New Revision: 218113
URL: https://gcc.gnu.org/viewcvs?rev=218113&root=gcc&view=rev
Log:
2014-11-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/61634
* tree-vect-slp.c: Include gimple-walk.h.
(vect_detect_hybrid_slp_stmts): Rewrite to propagate hybrid
down the SLP tree for one scalar statement.
(vect_detect_hybrid_slp_1): New walker function.
(vect_detect_hybrid_slp_2): Likewise.
(vect_detect_hybrid_slp): Properly handle pattern statements
in a pre-scan over all loop stmts.
* gcc.dg/vect/pr61634.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/vect/pr61634.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-slp.c
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8/4.9 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
` (5 preceding siblings ...)
2014-11-27 9:34 ` rguenth at gcc dot gnu.org
@ 2014-11-27 9:37 ` rguenth at gcc dot gnu.org
2014-12-10 13:01 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-11-27 9:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |5.0
Summary|[4.8/4.9/5 Regression] ICE |[4.8/4.9 Regression] ICE in
|in in |in
|vect_get_vec_def_for_operan |vect_get_vec_def_for_operan
|d, at |d, at
|tree-vect-stmts.c:1423 |tree-vect-stmts.c:1423
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk sofar. I'll give it some time before backporting - the patch is
quite non-trivial.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8/4.9 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
` (6 preceding siblings ...)
2014-11-27 9:37 ` [Bug tree-optimization/61634] [4.8/4.9 " rguenth at gcc dot gnu.org
@ 2014-12-10 13:01 ` rguenth at gcc dot gnu.org
2014-12-19 13:44 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-12-10 13:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8/4.9 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
` (7 preceding siblings ...)
2014-12-10 13:01 ` rguenth at gcc dot gnu.org
@ 2014-12-19 13:44 ` jakub at gcc dot gnu.org
2015-02-23 12:38 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-12-19 13:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.8.4 |4.8.5
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 4.8.4 has been released.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8/4.9 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
` (8 preceding siblings ...)
2014-12-19 13:44 ` jakub at gcc dot gnu.org
@ 2015-02-23 12:38 ` rguenth at gcc dot gnu.org
2015-02-26 14:18 ` [Bug tree-optimization/61634] [4.8 " rguenth at gcc dot gnu.org
2015-02-26 14:39 ` rguenth at gcc dot gnu.org
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-23 12:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Feb 23 11:14:25 2015
New Revision: 220912
URL: https://gcc.gnu.org/viewcvs?rev=220912&root=gcc&view=rev
Log:
2015-02-23 Richard Biener <rguenther@suse.de>
Backport from mainline
2014-11-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/63844
* omp-low.c (fixup_child_record_type): Use a restrict qualified
referece type for the receiver parameter.
2014-11-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/61634
* tree-vect-slp.c: Include gimple-walk.h.
(vect_detect_hybrid_slp_stmts): Rewrite to propagate hybrid
down the SLP tree for one scalar statement.
(vect_detect_hybrid_slp_1): New walker function.
(vect_detect_hybrid_slp_2): Likewise.
(vect_detect_hybrid_slp): Properly handle pattern statements
in a pre-scan over all loop stmts.
* gcc.dg/vect/pr61634.c: New testcase.
2015-01-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/59354
* tree-vect-slp.c (vect_build_slp_tree_1): Treat loads from
groups larger than the slp group size as having gaps.
* gcc.dg/vect/pr59354.c: New testcase.
2015-02-10 Richard Biener <rguenther@suse.de>
PR tree-optimization/64909
* tree-vect-loop.c (vect_estimate_min_profitable_iters): Properly
pass a scalar-stmt count estimate to the cost model.
* tree-vect-data-refs.c (vect_peeling_hash_get_lowest_cost): Likewise.
* gcc.dg/vect/costmodel/x86_64/costmodel-pr64909.c: New testcase.
Added:
branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/vect/costmodel/x86_64/costmodel-pr64909.c
branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/vect/pr59354.c
branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/vect/pr61634.c
Modified:
branches/gcc-4_9-branch/gcc/ChangeLog
branches/gcc-4_9-branch/gcc/omp-low.c
branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
branches/gcc-4_9-branch/gcc/tree-vect-data-refs.c
branches/gcc-4_9-branch/gcc/tree-vect-loop.c
branches/gcc-4_9-branch/gcc/tree-vect-slp.c
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
` (9 preceding siblings ...)
2015-02-23 12:38 ` rguenth at gcc dot gnu.org
@ 2015-02-26 14:18 ` rguenth at gcc dot gnu.org
2015-02-26 14:39 ` rguenth at gcc dot gnu.org
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-26 14:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Feb 26 13:28:48 2015
New Revision: 221006
URL: https://gcc.gnu.org/viewcvs?rev=221006&root=gcc&view=rev
Log:
2015-02-26 Richard Biener <rguenther@suse.de>
Backport from mainline
2014-11-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/61634
* tree-vect-slp.c: (vect_detect_hybrid_slp_stmts): Rewrite to
propagate hybrid down the SLP tree for one scalar statement.
(vect_detect_hybrid_slp_1): New walker function.
(vect_detect_hybrid_slp_2): Likewise.
(vect_detect_hybrid_slp): Properly handle pattern statements
in a pre-scan over all loop stmts.
* gcc.dg/vect/pr61634.c: New testcase.
Added:
branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/vect/pr61634.c
Modified:
branches/gcc-4_8-branch/gcc/ChangeLog
branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
branches/gcc-4_8-branch/gcc/tree-vect-slp.c
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/61634] [4.8 Regression] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423
2014-06-27 17:36 [Bug c/61634] New: [4.8.3/4.9.1] ICE in in vect_get_vec_def_for_operand, at tree-vect-stmts.c:1423 manuel.lauss at googlemail dot com
` (10 preceding siblings ...)
2015-02-26 14:18 ` [Bug tree-optimization/61634] [4.8 " rguenth at gcc dot gnu.org
@ 2015-02-26 14:39 ` rguenth at gcc dot gnu.org
11 siblings, 0 replies; 13+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-26 14:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61634
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Known to work| |4.8.5
Resolution|--- |FIXED
Known to fail| |4.8.4
--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 13+ messages in thread