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* [Bug tree-optimization/60559] New: g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE)
@ 2014-03-18 8:25 enkovich.gnu at gmail dot com
2014-03-18 13:46 ` [Bug tree-optimization/60559] [4.9 Regression] " jakub at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: enkovich.gnu at gmail dot com @ 2014-03-18 8:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60559
Bug ID: 60559
Summary: g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE)
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: enkovich.gnu at gmail dot com
Test gcc/testsuite/g++.dg/vect/pr60023.cc -fno-tree-dce fails with ICE if
executed with additional -fno-tree-dce flag.
As I can see the problem is in generated mask load which operated with integer
types:
int * _13;
int _14;
...
_14 = MASK_LOAD (_13, 0B, _ifc__37);
With DCE we have LHS of this call removed and then statement ignored in
expand_MASK_LOAD. But with no DCE we get ICE because there is no proper code
in optab.
I use gcc (GCC) 4.9.0 20140317 (experimental).
gcc -O2 -ftree-vectorize -fno-vect-cost-model -msse2 -fdump-tree-vect-details
-O3 -std=c++11 -fnon-call-exceptions -mavx2 -S -o pr60023.s pr60023.cc
-fno-tree-dce
/export/users/ienkovic/gcc/gcc/testsuite/g++.dg/vect/pr60023.cc: In function
'void f1(int*, int*, int*)':
/export/users/ienkovic/gcc/gcc/testsuite/g++.dg/vect/pr60023.cc:14:17: internal
compiler error: in maybe_gen_insn, at optabs.c:8250
p[i] = q[i] + 1;
^
0xc421d0 maybe_gen_insn(insn_code, unsigned int, expand_operand*)
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/optabs.c:8250
0xc42629 maybe_expand_insn(insn_code, unsigned int, expand_operand*)
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/optabs.c:8294
0xc426bd expand_insn(insn_code, unsigned int, expand_operand*)
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/optabs.c:8325
0xb27d95 expand_MASK_LOAD
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/internal-fn.c:837
0xb2807f expand_internal_call(gimple_statement_base*)
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/internal-fn.c:886
0x8f483f expand_call_stmt
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/cfgexpand.c:2190
0x8f815a expand_gimple_stmt_1
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/cfgexpand.c:3160
0x8f87a4 expand_gimple_stmt
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/cfgexpand.c:3312
0x8febbd expand_gimple_basic_block
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/cfgexpand.c:5152
0x9006a5 gimple_expand_cfg
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/cfgexpand.c:5731
0x900d20 execute
/gnumnt/msticlxl7_users/ienkovic/point-lookout/gcc-pl/gcc/cfgexpand.c:5951
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/60559] [4.9 Regression] g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE)
2014-03-18 8:25 [Bug tree-optimization/60559] New: g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE) enkovich.gnu at gmail dot com
@ 2014-03-18 13:46 ` jakub at gcc dot gnu.org
2014-03-18 13:47 ` jakub at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-03-18 13:46 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60559
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-03-18
Target Milestone|--- |4.9.0
Summary|g++.dg/vect/pr60023.cc |[4.9 Regression]
|fails with -fno-tree-dce |g++.dg/vect/pr60023.cc
|(ICE) |fails with -fno-tree-dce
| |(ICE)
Ever confirmed|0 |1
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/60559] [4.9 Regression] g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE)
2014-03-18 8:25 [Bug tree-optimization/60559] New: g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE) enkovich.gnu at gmail dot com
2014-03-18 13:46 ` [Bug tree-optimization/60559] [4.9 Regression] " jakub at gcc dot gnu.org
@ 2014-03-18 13:47 ` jakub at gcc dot gnu.org
2014-03-19 9:14 ` jakub at gcc dot gnu.org
2014-03-19 13:17 ` jakub at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-03-18 13:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60559
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 32381
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32381&action=edit
gcc49-pr60559.patch
Untested fix.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/60559] [4.9 Regression] g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE)
2014-03-18 8:25 [Bug tree-optimization/60559] New: g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE) enkovich.gnu at gmail dot com
2014-03-18 13:46 ` [Bug tree-optimization/60559] [4.9 Regression] " jakub at gcc dot gnu.org
2014-03-18 13:47 ` jakub at gcc dot gnu.org
@ 2014-03-19 9:14 ` jakub at gcc dot gnu.org
2014-03-19 13:17 ` jakub at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-03-19 9:14 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60559
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Mar 19 09:13:32 2014
New Revision: 208676
URL: http://gcc.gnu.org/viewcvs?rev=208676&root=gcc&view=rev
Log:
PR tree-optimization/60559
* vectorizable_mask_load_store): Replace scalar MASK_LOAD
with build_zero_cst assignment.
* g++.dg/vect/pr60559.cc: New test.
Added:
trunk/gcc/testsuite/g++.dg/vect/pr60559.cc
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-stmts.c
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/60559] [4.9 Regression] g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE)
2014-03-18 8:25 [Bug tree-optimization/60559] New: g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE) enkovich.gnu at gmail dot com
` (2 preceding siblings ...)
2014-03-19 9:14 ` jakub at gcc dot gnu.org
@ 2014-03-19 13:17 ` jakub at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-03-19 13:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60559
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2014-03-19 13:17 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2014-03-18 8:25 [Bug tree-optimization/60559] New: g++.dg/vect/pr60023.cc fails with -fno-tree-dce (ICE) enkovich.gnu at gmail dot com
2014-03-18 13:46 ` [Bug tree-optimization/60559] [4.9 Regression] " jakub at gcc dot gnu.org
2014-03-18 13:47 ` jakub at gcc dot gnu.org
2014-03-19 9:14 ` jakub at gcc dot gnu.org
2014-03-19 13:17 ` jakub at gcc dot gnu.org
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