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* [Bug tree-optimization/15555] New: compute_may_alias failes when scheduled again
@ 2004-05-21 18:46 dorit at il dot ibm dot com
2004-05-21 19:34 ` [Bug tree-optimization/15555] " pinskia at gcc dot gnu dot org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: dorit at il dot ibm dot com @ 2004-05-21 18:46 UTC (permalink / raw)
To: gcc-bugs
Applying this patch to gcc mainline:
*** tree-optimize.c 13 May 2004 06:39:48 -0000 2.15
--- tree-optimize.c 19 May 2004 13:57:41 -0000
*************** init_tree_optimization_passes (void)
*** 307,312 ****
--- 307,317 ----
NEXT_PASS (pass_fold_builtins);
NEXT_PASS (pass_split_crit_edges);
NEXT_PASS (pass_pre);
+ #if 1
+ NEXT_PASS (DUP_PASS (pass_build_pta));
+ NEXT_PASS (DUP_PASS (pass_may_alias));
+ NEXT_PASS (DUP_PASS (pass_del_pta));
+ #endif
NEXT_PASS (DUP_PASS (pass_dominator));
NEXT_PASS (DUP_PASS (pass_redundant_phi));
NEXT_PASS (pass_cd_dce);
Is causing a compilation error at verify_ssa right after the new invocation of
compute_may_aliases, on the testcase below:
float *gl_copy_map_points1f( int uorder,
const float *points, unsigned int size)
{
float *buffer, *p;
unsigned int i;
buffer = (float *) malloc(uorder * size * sizeof(float));
if (buffer)
for (i=0, p=buffer; i<uorder; i++)
*p++ = points[i];
return buffer;
}
with the following error:
aaa.c: In function `gl_copy_map_points1f':
aaa.c:4: error: Missing definition
for SSA_NAME: TMT.9<D1145>_25
in statement:
TMT.9<D1145>_27 = PHI <TMT.9<D1145>_25(2), TMT.9<D1145>_23(1)>;
PHI argument
TMT.9<D1145>_25
PHI argument
TMT.9<D1145>_23
for PHI node
TMT.9<D1145>_27 = PHI <TMT.9<D1145>_25(2), TMT.9<D1145>_23(1)>;
aaa.c:4: internal compiler error: verify_ssa failed.
more details here: http://gcc.gnu.org/ml/gcc/2004-05/msg01034.html
--
Summary: compute_may_alias failes when scheduled again
Product: gcc
Version: 3.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: dnovillo at gcc dot gnu dot org
ReportedBy: dorit at il dot ibm dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15555
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/15555] compute_may_alias failes when scheduled again
2004-05-21 18:46 [Bug tree-optimization/15555] New: compute_may_alias failes when scheduled again dorit at il dot ibm dot com
@ 2004-05-21 19:34 ` pinskia at gcc dot gnu dot org
2004-05-21 20:10 ` pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-05-21 19:34 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-05-20 19:39 -------
Confirmed, I had the same problem when I tried this.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-05-20 19:39:12
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15555
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/15555] compute_may_alias failes when scheduled again
2004-05-21 18:46 [Bug tree-optimization/15555] New: compute_may_alias failes when scheduled again dorit at il dot ibm dot com
2004-05-21 19:34 ` [Bug tree-optimization/15555] " pinskia at gcc dot gnu dot org
@ 2004-05-21 20:10 ` pinskia at gcc dot gnu dot org
2004-07-08 23:25 ` dnovillo at gcc dot gnu dot org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-05-21 20:10 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-05-20 19:50 -------
I should note that I tried to postpone pass_del_pta untill after pass_may_alias and not do
pass_build_pta right before and still ran into troubles.
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15555
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/15555] compute_may_alias failes when scheduled again
2004-05-21 18:46 [Bug tree-optimization/15555] New: compute_may_alias failes when scheduled again dorit at il dot ibm dot com
2004-05-21 19:34 ` [Bug tree-optimization/15555] " pinskia at gcc dot gnu dot org
2004-05-21 20:10 ` pinskia at gcc dot gnu dot org
@ 2004-07-08 23:25 ` dnovillo at gcc dot gnu dot org
2004-07-09 15:16 ` cvs-commit at gcc dot gnu dot org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: dnovillo at gcc dot gnu dot org @ 2004-07-08 23:25 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From dnovillo at gcc dot gnu dot org 2004-07-08 23:25 -------
I'm now testing a patch for this.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15555
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/15555] compute_may_alias failes when scheduled again
2004-05-21 18:46 [Bug tree-optimization/15555] New: compute_may_alias failes when scheduled again dorit at il dot ibm dot com
` (2 preceding siblings ...)
2004-07-08 23:25 ` dnovillo at gcc dot gnu dot org
@ 2004-07-09 15:16 ` cvs-commit at gcc dot gnu dot org
2004-07-09 15:21 ` dnovillo at gcc dot gnu dot org
2004-07-10 0:24 ` pinskia at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-07-09 15:16 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-07-09 15:16 -------
Subject: Bug 15555
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: dnovillo@gcc.gnu.org 2004-07-09 15:16:24
Modified files:
gcc : ChangeLog
Log message:
Fix PR tree-optimization/15555
* tree-dfa.c (dump_variable): If the variable is a pointer
SSA_NAME, also dump its points-to information.
* tree-flow.h (struct ptr_info_def): Add field
is_dereferenced.
(dump_points_to_info_for): Declare.
(debug_points_to_info_for): Declare.
* tree-optimize.c (init_tree_optimization_passes): Add a
second alias analysis pass after DOM2.
Move pass_del_pta to a later spot.
* tree-ssa-alias.c (compute_points_to_and_addr_escape): Do not
create a name tags when we find a dereferenced pointer. Just
mark the pointer dereferenced.
(collect_points_to_info_for): Move code to clear points-to
information to create_name_tags.
(create_name_tags): New function.
(compute_flow_sensitive_aliasing): Call it.
(setup_pointers_and_addressables): Mark type tags for renaming
here instead of ...
(create_memory_tag): ... here.
(merge_pointed_to_info): Do not merge PT_MALLOC attributes.
(dump_points_to_info_for): Declare extern.
(debug_points_to_info_for): New function.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.4424&r2=2.4425
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15555
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/15555] compute_may_alias failes when scheduled again
2004-05-21 18:46 [Bug tree-optimization/15555] New: compute_may_alias failes when scheduled again dorit at il dot ibm dot com
` (3 preceding siblings ...)
2004-07-09 15:16 ` cvs-commit at gcc dot gnu dot org
@ 2004-07-09 15:21 ` dnovillo at gcc dot gnu dot org
2004-07-10 0:24 ` pinskia at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: dnovillo at gcc dot gnu dot org @ 2004-07-09 15:21 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From dnovillo at gcc dot gnu dot org 2004-07-09 15:21 -------
Fixed with http://gcc.gnu.org/ml/gcc-patches/2004-07/msg00958.html
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15555
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/15555] compute_may_alias failes when scheduled again
2004-05-21 18:46 [Bug tree-optimization/15555] New: compute_may_alias failes when scheduled again dorit at il dot ibm dot com
` (4 preceding siblings ...)
2004-07-09 15:21 ` dnovillo at gcc dot gnu dot org
@ 2004-07-10 0:24 ` pinskia at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-07-10 0:24 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |3.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15555
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2004-07-10 0:24 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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2004-05-21 18:46 [Bug tree-optimization/15555] New: compute_may_alias failes when scheduled again dorit at il dot ibm dot com
2004-05-21 19:34 ` [Bug tree-optimization/15555] " pinskia at gcc dot gnu dot org
2004-05-21 20:10 ` pinskia at gcc dot gnu dot org
2004-07-08 23:25 ` dnovillo at gcc dot gnu dot org
2004-07-09 15:16 ` cvs-commit at gcc dot gnu dot org
2004-07-09 15:21 ` dnovillo at gcc dot gnu dot org
2004-07-10 0:24 ` pinskia at gcc dot gnu dot org
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