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* [Bug tree-optimization/39041] New: ICE on valid during vrp2
@ 2009-01-30 10:50 bernds_cb1 at t-online dot de
2009-01-30 10:51 ` [Bug tree-optimization/39041] " bernds_cb1 at t-online dot de
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: bernds_cb1 at t-online dot de @ 2009-01-30 10:50 UTC (permalink / raw)
To: gcc-bugs
The attached file causes an ICE with gcc-4.3.2 and gcc-4.3.3 on at least two
targets (ix86 Linux and Blackfin) when compiled with -O2.
bug.i: In function 'foo':
bug.i:18: internal compiler error: in get_addr_dereference_operands, at
tree-ssa-operands.c:1698
This happens during the vrp2 pass:
bernds@beaker /local/blackfin/b-4.3/gcc $ tail bug.i.115t.vrp2
prephitmp.29_38: [0, 1]
SMT.36_57: VARYING
Substituing values and folding statements
Folded statement: pretmp.28_29 = *D.1312_16;
into: pretmp.28_29 = *&cpumask.bits[0];
--
Summary: ICE on valid during vrp2
Product: gcc
Version: 4.3.3
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bernds_cb1 at t-online dot de
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/39041] ICE on valid during vrp2
2009-01-30 10:50 [Bug tree-optimization/39041] New: ICE on valid during vrp2 bernds_cb1 at t-online dot de
@ 2009-01-30 10:51 ` bernds_cb1 at t-online dot de
2009-01-30 13:39 ` rguenth at gcc dot gnu dot org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: bernds_cb1 at t-online dot de @ 2009-01-30 10:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from bernds_cb1 at t-online dot de 2009-01-30 10:51 -------
Created an attachment (id=17212)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17212&action=view)
Testcase to reproduce the problem.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/39041] ICE on valid during vrp2
2009-01-30 10:50 [Bug tree-optimization/39041] New: ICE on valid during vrp2 bernds_cb1 at t-online dot de
2009-01-30 10:51 ` [Bug tree-optimization/39041] " bernds_cb1 at t-online dot de
@ 2009-01-30 13:39 ` rguenth at gcc dot gnu dot org
2009-01-30 13:47 ` [Bug tree-optimization/39041] [4.3 Regression] " rguenth at gcc dot gnu dot org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-01-30 13:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2009-01-30 13:39 -------
Confirmed. There's a type mismatch in the substituted statement:
pretmp.27_29 = *&cpumask.bits[0]
arg 1 <indirect_ref 0x7ffff75267c0 type <integer_type 0x7ffff7e89540 int>
arg 0 <addr_expr 0x7ffff752a180 type <pointer_type 0x7ffff7f71f00>
constant invariant
arg 0 <array_ref 0x7ffff7514730 type <integer_type 0x7ffff7e89600
unsigned int>
arg 0 <component_ref 0x7ffff75147d0 type <array_type
0x7ffff7f71e40>
arg 0 <var_decl 0x7ffff7f3c8c0 cpumask> arg 1 <field_decl
0x7ffff7f3c820 bits>>
arg 1 <integer_cst 0x7ffff7e79c00 constant invariant 0>>>>>
we have int and unsigned int. The INDIRECT_REF has the wrong type.
forwprop causes this and creates
int * a;
...
a_15 = &cpumask.bits[D.1587_13];
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-01-30 13:39:10
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/39041] [4.3 Regression] ICE on valid during vrp2
2009-01-30 10:50 [Bug tree-optimization/39041] New: ICE on valid during vrp2 bernds_cb1 at t-online dot de
2009-01-30 10:51 ` [Bug tree-optimization/39041] " bernds_cb1 at t-online dot de
2009-01-30 13:39 ` rguenth at gcc dot gnu dot org
@ 2009-01-30 13:47 ` rguenth at gcc dot gnu dot org
2009-01-30 13:47 ` [Bug tree-optimization/39041] " rguenth at gcc dot gnu dot org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-01-30 13:47 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2009-01-30 13:47 -------
4.2 works, the problem is latent in 4.4
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Known to work| |4.2.4
Summary|ICE on valid during vrp2 |[4.3 Regression] ICE on
| |valid during vrp2
Target Milestone|--- |4.3.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/39041] ICE on valid during vrp2
2009-01-30 10:50 [Bug tree-optimization/39041] New: ICE on valid during vrp2 bernds_cb1 at t-online dot de
` (2 preceding siblings ...)
2009-01-30 13:47 ` [Bug tree-optimization/39041] [4.3 Regression] " rguenth at gcc dot gnu dot org
@ 2009-01-30 13:47 ` rguenth at gcc dot gnu dot org
2009-01-30 22:09 ` [Bug tree-optimization/39041] [4.3 Regression] " rguenth at gcc dot gnu dot org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-01-30 13:47 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rguenth at gcc dot gnu dot org 2009-01-30 13:46 -------
I have a patch.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2009-01-30 13:39:10 |2009-01-30 13:46:55
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/39041] [4.3 Regression] ICE on valid during vrp2
2009-01-30 10:50 [Bug tree-optimization/39041] New: ICE on valid during vrp2 bernds_cb1 at t-online dot de
` (3 preceding siblings ...)
2009-01-30 13:47 ` [Bug tree-optimization/39041] " rguenth at gcc dot gnu dot org
@ 2009-01-30 22:09 ` rguenth at gcc dot gnu dot org
2009-01-30 22:15 ` rguenth at gcc dot gnu dot org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-01-30 22:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from rguenth at gcc dot gnu dot org 2009-01-30 22:09 -------
Subject: Bug 39041
Author: rguenth
Date: Fri Jan 30 22:09:15 2009
New Revision: 143808
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143808
Log:
2009-01-30 Richard Guenther <rguenther@suse.de>
PR tree-optimization/39041
* tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
Propagate variable indices only if the types match for this stmt.
* gcc.c-torture/compile/pr39041.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr39041.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-forwprop.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/39041] [4.3 Regression] ICE on valid during vrp2
2009-01-30 10:50 [Bug tree-optimization/39041] New: ICE on valid during vrp2 bernds_cb1 at t-online dot de
` (5 preceding siblings ...)
2009-01-30 22:15 ` rguenth at gcc dot gnu dot org
@ 2009-01-30 22:15 ` rguenth at gcc dot gnu dot org
2009-02-06 2:47 ` pinskia at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-01-30 22:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from rguenth at gcc dot gnu dot org 2009-01-30 22:14 -------
Subject: Bug 39041
Author: rguenth
Date: Fri Jan 30 22:14:39 2009
New Revision: 143809
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143809
Log:
2009-01-30 Richard Guenther <rguenther@suse.de>
PR tree-optimization/39041
* tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
Propagate variable indices only if the types match for this stmt.
* gcc.c-torture/compile/pr39041.c: New testcase.
Added:
branches/gcc-4_3-branch/gcc/testsuite/gcc.c-torture/compile/pr39041.c
Modified:
branches/gcc-4_3-branch/gcc/ChangeLog
branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
branches/gcc-4_3-branch/gcc/tree-ssa-forwprop.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/39041] [4.3 Regression] ICE on valid during vrp2
2009-01-30 10:50 [Bug tree-optimization/39041] New: ICE on valid during vrp2 bernds_cb1 at t-online dot de
` (4 preceding siblings ...)
2009-01-30 22:09 ` [Bug tree-optimization/39041] [4.3 Regression] " rguenth at gcc dot gnu dot org
@ 2009-01-30 22:15 ` rguenth at gcc dot gnu dot org
2009-01-30 22:15 ` rguenth at gcc dot gnu dot org
2009-02-06 2:47 ` pinskia at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-01-30 22:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from rguenth at gcc dot gnu dot org 2009-01-30 22:15 -------
Fixed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Known to fail| |4.3.3
Known to work|4.2.4 |4.2.4 4.3.4 4.4.0
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/39041] [4.3 Regression] ICE on valid during vrp2
2009-01-30 10:50 [Bug tree-optimization/39041] New: ICE on valid during vrp2 bernds_cb1 at t-online dot de
` (6 preceding siblings ...)
2009-01-30 22:15 ` rguenth at gcc dot gnu dot org
@ 2009-02-06 2:47 ` pinskia at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2009-02-06 2:47 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|major |normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39041
^ permalink raw reply [flat|nested] 9+ messages in thread
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2009-01-30 10:50 [Bug tree-optimization/39041] New: ICE on valid during vrp2 bernds_cb1 at t-online dot de
2009-01-30 10:51 ` [Bug tree-optimization/39041] " bernds_cb1 at t-online dot de
2009-01-30 13:39 ` rguenth at gcc dot gnu dot org
2009-01-30 13:47 ` [Bug tree-optimization/39041] [4.3 Regression] " rguenth at gcc dot gnu dot org
2009-01-30 13:47 ` [Bug tree-optimization/39041] " rguenth at gcc dot gnu dot org
2009-01-30 22:09 ` [Bug tree-optimization/39041] [4.3 Regression] " rguenth at gcc dot gnu dot org
2009-01-30 22:15 ` rguenth at gcc dot gnu dot org
2009-01-30 22:15 ` rguenth at gcc dot gnu dot org
2009-02-06 2:47 ` pinskia at gcc dot gnu dot org
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