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* [Bug optimization/14029] New: [tree-ssa] wrong-code
@ 2004-02-05 12:54 stefaandr at hotmail dot com
2004-02-05 16:30 ` [Bug optimization/14029] " bangerth at dealii dot org
` (14 more replies)
0 siblings, 15 replies; 16+ messages in thread
From: stefaandr at hotmail dot com @ 2004-02-05 12:54 UTC (permalink / raw)
To: gcc-bugs
Following code (sorry, still contains STL, but I did a lot of trimming
already) gives a wrong result when optimization is enabled:
#include <vector>
#include <algorithm>
struct a {
int n;
bool operator==(a const & other) const { return n == other.n; };
};
int main() {
a a1; std::vector <a> as;
a1.n = 4; for (int i=0; i<4; ++i) as.push_back(a1);
a1.n = 7; as.push_back(a1);
return std::find(as.begin(), as.end(), a1) == as.end();
};
Reading specs
from /esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/specs
Configured with: /esat/firenze/tmp/src/gcc/ssa/configure --program-suffix=-ssa
--prefix=/esat/olympia/install --enable-languages=c,c++
Thread model: posix
gcc version 3.5-tree-ssa 20040204 (merged 20040126)
/esat/olympia/install/libexec/gcc/i686-pc-linux-gnu/3.5-tree-ssa/cc1plus
-quiet -v -D_GNU_SOURCE tst.cpp -quiet -dumpbase tst.cpp -mtune=pentiumpro
-auxbase tst -O9 -version -o /tmp/ccQc86SB.s
ignoring nonexistent directory
"/esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/../../../../include/c++/3.5-tree-ssa
/esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/../../../../include/c++/3.5-tree-ssa/i686-pc-linux-gnu
/esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/../../../../include/c++/3.5-tree-ssa/backward
/usr/local/include
/esat/olympia/install/include
/esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/include
/usr/include
End of search list.
GNU C++ version 3.5-tree-ssa 20040204 (merged 20040126) (i686-pc-linux-gnu)
compiled by GNU C version 3.3.1.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
as -V -Qy -o /tmp/cco9g0GA.o /tmp/ccQc86SB.s
GNU assembler version 2.14 (i686-pc-linux-gnu) using BFD version 2.14 20030612
/esat/olympia/install/libexec/gcc/i686-pc-linux-gnu/3.5-tree-ssa/collect2
--eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o
tst /usr/lib/crt1.o /usr/lib/crti.o /esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/crtbegin.o
-L/esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa
-L/esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/../../.. /tmp/cco9g0GA.o
-lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s
-lgcc /esat/olympia/install/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/crtend.o /usr/lib/crtn.o
--
Summary: [tree-ssa] wrong-code
Product: gcc
Version: tree-ssa
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: stefaandr at hotmail dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug optimization/14029] [tree-ssa] wrong-code
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
@ 2004-02-05 16:30 ` bangerth at dealii dot org
2004-02-05 16:41 ` bangerth at dealii dot org
` (13 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: bangerth at dealii dot org @ 2004-02-05 16:30 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bangerth at dealii dot org 2004-02-05 16:30 -------
Interesting. I confirm the bug, but it only happens if the loop
in main() is executed at least 4 times...
W.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug optimization/14029] [tree-ssa] wrong-code
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
2004-02-05 16:30 ` [Bug optimization/14029] " bangerth at dealii dot org
@ 2004-02-05 16:41 ` bangerth at dealii dot org
2004-02-05 18:37 ` [Bug optimization/14029] [tree-ssa] Miscompilation of unrolled loop bangerth at dealii dot org
` (12 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: bangerth at dealii dot org @ 2004-02-05 16:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bangerth at dealii dot org 2004-02-05 16:41 -------
I'm working on a reduced testcase.
W.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug optimization/14029] [tree-ssa] Miscompilation of unrolled loop
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
2004-02-05 16:30 ` [Bug optimization/14029] " bangerth at dealii dot org
2004-02-05 16:41 ` bangerth at dealii dot org
@ 2004-02-05 18:37 ` bangerth at dealii dot org
2004-02-06 3:11 ` [Bug c++/14029] [tree-ssa] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem pinskia at gcc dot gnu dot org
` (11 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: bangerth at dealii dot org @ 2004-02-05 18:37 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bangerth at dealii dot org 2004-02-05 18:36 -------
OK, here's something smaller:
-----------------------------
struct Iterator {
int * ptr;
Iterator(int * i) : ptr(i) { }
void operator++() { ++ptr; }
int *const & base() const { return ptr; }
};
Iterator find_7(Iterator first, Iterator last)
{
int trip_count = (last.base() - first.base()) >> 1;
for ( ; trip_count > 0 ; --trip_count) {
if (*first.ptr == 7) return first;
++first;
if (*first.ptr == 7) return first;
++first;
}
switch(last.base() - first.base()) {
case 1:
if (*first.ptr == 7) return first;
++first;
case 0:
default:
return last;
}
}
int main() {
int as[5] = {4,4,4,4,7};
return (find_7(Iterator(&as[0]), Iterator(&as[5])).ptr == &as[5]);
};
------------------------
The function find_7 is miscompiled:
g/x> /home/bangerth/bin/gcc-tree-ssa/bin/c++ x.cc && ./a.out ; echo $?
0
g/x> /home/bangerth/bin/gcc-tree-ssa/bin/c++ x.cc -O2 && ./a.out ; echo $?
1
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |wrong-code
Known to work| |3.4.0 3.5.0 3.3.3
Last reconfirmed|0000-00-00 00:00:00 |2004-02-05 18:37:03
date| |
Summary|[tree-ssa] wrong-code |[tree-ssa] Miscompilation of
| |unrolled loop
Target Milestone|--- |tree-ssa
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug c++/14029] [tree-ssa] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (2 preceding siblings ...)
2004-02-05 18:37 ` [Bug optimization/14029] [tree-ssa] Miscompilation of unrolled loop bangerth at dealii dot org
@ 2004-02-06 3:11 ` pinskia at gcc dot gnu dot org
2004-02-09 2:21 ` pinskia at gcc dot gnu dot org
` (10 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-02-06 3:11 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-02-06 03:10 -------
This is caused by -fstrict-aliasing.
The problem is that C++ (and the C by the way if converted to act like C) front-end is doing this
for Iterator::base :
int* const& Iterator::base() const (this)
{
{
return (int * const *)this;
}
}
which is wrong as it violates aliasing rules.
For a C example:
int **t(struct Iterator*this1)
{
return &this1->ptr;
}
Does this:
t (this1)
{
return (int * *)this1;
}
Even it gets this wrong too:
struct Iterator {
int * ptr;
int * ptr1;
};
int **t(struct Iterator*this1)
{
return &this1->ptr1;
}
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |critical
Component|optimization |c++
Last reconfirmed|2004-02-05 18:37:03 |2004-02-06 03:10:57
date| |
Summary|[tree-ssa] Miscompilation of|[tree-ssa] Miscompilation of
|unrolled loop |unrolled loop due to
| |Iterator::base having an
| |aliasing problem
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug c++/14029] [tree-ssa] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (3 preceding siblings ...)
2004-02-06 3:11 ` [Bug c++/14029] [tree-ssa] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem pinskia at gcc dot gnu dot org
@ 2004-02-09 2:21 ` pinskia at gcc dot gnu dot org
2004-03-01 16:57 ` amacleod at redhat dot com
` (9 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-02-09 2:21 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-02-09 02:21 -------
Basically the problem is in both the C and C++ front-ends lowering too soon so that offset
will work correctly. So the change to fix this needs to have a builtin for offset like the on in
http://gcc.gnu.org/ml/gcc-patches/2004-01/msg00032.html, I am going to update that
patch and try to fix it for the C++ template problems.
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |pinskia at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug c++/14029] [tree-ssa] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (4 preceding siblings ...)
2004-02-09 2:21 ` pinskia at gcc dot gnu dot org
@ 2004-03-01 16:57 ` amacleod at redhat dot com
2004-05-15 3:38 ` [Bug tree-optimization/14029] [3.5 Regression] " pinskia at gcc dot gnu dot org
` (8 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: amacleod at redhat dot com @ 2004-03-01 16:57 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From amacleod at redhat dot com 2004-03-01 16:57 -------
(From update of attachment 5829)
Sigh.. here it happened again.. My patch is for a differnt PR 14016... ignore
this .
Apparently when I submit something, my browser is bumping the bug to the next
one in some list, and Im not noticing. I was expecting it to stay in the same
bug...
--
What |Removed |Added
----------------------------------------------------------------------------
Attachment #5829 is|0 |1
obsolete| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/14029] [3.5 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (5 preceding siblings ...)
2004-03-01 16:57 ` amacleod at redhat dot com
@ 2004-05-15 3:38 ` pinskia at gcc dot gnu dot org
2004-07-10 1:25 ` pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-05-15 3:38 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-05-14 17:24 -------
*** Bug 15440 has been marked as a duplicate of this bug. ***
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |martin at mpa-garching dot
| |mpg dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/14029] [3.5 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (6 preceding siblings ...)
2004-05-15 3:38 ` [Bug tree-optimization/14029] [3.5 Regression] " pinskia at gcc dot gnu dot org
@ 2004-07-10 1:25 ` pinskia at gcc dot gnu dot org
2004-07-26 22:46 ` pinskia at gcc dot gnu dot org
` (6 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-07-10 1:25 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-07-10 01:25 -------
*** Bug 16282 has been marked as a duplicate of this bug. ***
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at tat dot physik
| |dot uni-tuebingen dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/14029] [3.5 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (7 preceding siblings ...)
2004-07-10 1:25 ` pinskia at gcc dot gnu dot org
@ 2004-07-26 22:46 ` pinskia at gcc dot gnu dot org
2004-08-23 3:12 ` cvs-commit at gcc dot gnu dot org
` (5 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-07-26 22:46 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-07-26 22:46 -------
*** Bug 16728 has been marked as a duplicate of this bug. ***
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |bkoz at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/14029] [3.5 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (8 preceding siblings ...)
2004-07-26 22:46 ` pinskia at gcc dot gnu dot org
@ 2004-08-23 3:12 ` cvs-commit at gcc dot gnu dot org
2004-08-23 3:13 ` pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-08-23 3:12 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-08-23 03:12 -------
Subject: Bug 14029
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: pinskia@gcc.gnu.org 2004-08-23 03:12:39
Modified files:
gcc : ChangeLog c-typeck.c
gcc/testsuite : ChangeLog
gcc/cp : typeck.c ChangeLog
Added files:
gcc/testsuite/g++.dg/opt: pr14029.C
gcc/testsuite/gcc.c-torture/execute: pr15262.c
Log message:
2004-08-22 Andrew Pinski <apinski@apple.com>
PR c/15262
* c-typeck.c (build_unary_op): Use &a.b if the foldded lowered
expression is not constant.
(c_finish_return): Do not go through INDIRECT_REF when looking
for the inner expression of an ADDR_EXPR for warning about.
2004-08-22 Andrew Pinski <apinski@apple.com>
* g++.dg/opt/pr14029.C: New test.
* gcc.c-torture/execute/pr15262.c: New test.
2004-08-22 Andrew Pinski <apinski@apple.com>
PR c++/14029
* typeck.c (build_unary_op): Use &a.b if the foldded lowered
expression is not constant.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5024&r2=2.5025
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-typeck.c.diff?cvsroot=gcc&r1=1.359&r2=1.360
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4172&r2=1.4173
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&r1=1.567&r2=1.568
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4293&r2=1.4294
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/opt/pr14029.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/pr15262.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/14029] [3.5 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (9 preceding siblings ...)
2004-08-23 3:12 ` cvs-commit at gcc dot gnu dot org
@ 2004-08-23 3:13 ` pinskia at gcc dot gnu dot org
2004-08-23 4:02 ` cvs-commit at gcc dot gnu dot org
` (3 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-08-23 3:13 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-08-23 03:13 -------
Fixed by a change in the front-end.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/14029] [3.5 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (10 preceding siblings ...)
2004-08-23 3:13 ` pinskia at gcc dot gnu dot org
@ 2004-08-23 4:02 ` cvs-commit at gcc dot gnu dot org
2004-08-23 18:25 ` cvs-commit at gcc dot gnu dot org
` (2 subsequent siblings)
14 siblings, 0 replies; 16+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-08-23 4:02 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-08-23 04:02 -------
Subject: Bug 14029
CVSROOT: /cvs/gcc
Module name: gcc
Branch: apple-ppc-branch
Changes by: pinskia@gcc.gnu.org 2004-08-23 04:02:01
Modified files:
gcc : ChangeLog.apple-ppc c-typeck.c
gcc/cp : ChangeLog.apple-ppc typeck.c
gcc/testsuite : ChangeLog.apple-ppc
Added files:
gcc/testsuite/g++.dg/opt: pr14029.C
gcc/testsuite/gcc.c-torture/execute: pr15262.c
Log message:
2004-08-22 Andrew Pinski <apinski@apple.com>
PR c/15262
* c-typeck.c (build_unary_op): Use &a.b if the foldded lowered
expression is not constant.
(c_finish_return): Do not go through INDIRECT_REF when looking
for the inner expression of an ADDR_EXPR for warning about.
2004-08-22 Andrew Pinski <apinski@apple.com>
* g++.dg/opt/pr14029.C: New test.
* gcc.c-torture/execute/pr15262.c: New test.
2004-08-22 Andrew Pinski <apinski@apple.com>
PR c++/14029
* typeck.c (build_unary_op): Use &a.b if the foldded lowered
expression is not constant.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.apple-ppc.diff?cvsroot=gcc&only_with_tag=apple-ppc-branch&r1=1.1.2.129&r2=1.1.2.130
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-typeck.c.diff?cvsroot=gcc&only_with_tag=apple-ppc-branch&r1=1.196.2.43.2.13&r2=1.196.2.43.2.14
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.apple-ppc.diff?cvsroot=gcc&only_with_tag=apple-ppc-branch&r1=1.1.2.7&r2=1.1.2.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&only_with_tag=apple-ppc-branch&r1=1.408.2.43.2.12&r2=1.408.2.43.2.13
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.apple-ppc.diff?cvsroot=gcc&only_with_tag=apple-ppc-branch&r1=1.1.2.25&r2=1.1.2.26
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/opt/pr14029.C.diff?cvsroot=gcc&only_with_tag=apple-ppc-branch&r1=NONE&r2=1.1.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/pr15262.c.diff?cvsroot=gcc&only_with_tag=apple-ppc-branch&r1=NONE&r2=1.1.2.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/14029] [3.5 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (11 preceding siblings ...)
2004-08-23 4:02 ` cvs-commit at gcc dot gnu dot org
@ 2004-08-23 18:25 ` cvs-commit at gcc dot gnu dot org
2004-08-23 18:28 ` cvs-commit at gcc dot gnu dot org
2004-09-14 22:58 ` [Bug tree-optimization/14029] [4.0 " dnovillo at gcc dot gnu dot org
14 siblings, 0 replies; 16+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-08-23 18:25 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-08-23 18:24 -------
Subject: Bug 14029
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: pinskia@gcc.gnu.org 2004-08-23 18:24:23
Modified files:
gcc/cp : ChangeLog typeck.c
Log message:
2004-08-22 Andrew Pinski <apinski@apple.com>
Revert:
2004-08-22 Andrew Pinski <apinski@apple.com>
PR c++/14029
* typeck.c (build_unary_op): Use &a.b if the foldded lowered
expression is not constant.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4295&r2=1.4296
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&r1=1.568&r2=1.569
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/14029] [3.5 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (12 preceding siblings ...)
2004-08-23 18:25 ` cvs-commit at gcc dot gnu dot org
@ 2004-08-23 18:28 ` cvs-commit at gcc dot gnu dot org
2004-09-14 22:58 ` [Bug tree-optimization/14029] [4.0 " dnovillo at gcc dot gnu dot org
14 siblings, 0 replies; 16+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-08-23 18:28 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-08-23 18:28 -------
Subject: Bug 14029
CVSROOT: /cvs/gcc
Module name: gcc
Branch: apple-ppc-branch
Changes by: pinskia@gcc.gnu.org 2004-08-23 18:28:12
Modified files:
gcc/cp : ChangeLog.apple-ppc typeck.c
Log message:
2004-08-22 Andrew Pinski <apinski@apple.com>
Revert:
2004-08-22 Andrew Pinski <apinski@apple.com>
PR c++/14029
* typeck.c (build_unary_op): Use &a.b if the foldded lowered
expression is not constant.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.apple-ppc.diff?cvsroot=gcc&only_with_tag=apple-ppc-branch&r1=1.1.2.8&r2=1.1.2.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&only_with_tag=apple-ppc-branch&r1=1.408.2.43.2.13&r2=1.408.2.43.2.14
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
* [Bug tree-optimization/14029] [4.0 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
` (13 preceding siblings ...)
2004-08-23 18:28 ` cvs-commit at gcc dot gnu dot org
@ 2004-09-14 22:58 ` dnovillo at gcc dot gnu dot org
14 siblings, 0 replies; 16+ messages in thread
From: dnovillo at gcc dot gnu dot org @ 2004-09-14 22:58 UTC (permalink / raw)
To: gcc-bugs
--
Bug 14029 depends on bug 15262, which changed state.
Bug 15262 Summary: [4.0 Regression] [tree-ssa] Alias analyzer cannot handle addressable fields
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15262
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029
^ permalink raw reply [flat|nested] 16+ messages in thread
end of thread, other threads:[~2004-09-14 22:58 UTC | newest]
Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-02-05 12:54 [Bug optimization/14029] New: [tree-ssa] wrong-code stefaandr at hotmail dot com
2004-02-05 16:30 ` [Bug optimization/14029] " bangerth at dealii dot org
2004-02-05 16:41 ` bangerth at dealii dot org
2004-02-05 18:37 ` [Bug optimization/14029] [tree-ssa] Miscompilation of unrolled loop bangerth at dealii dot org
2004-02-06 3:11 ` [Bug c++/14029] [tree-ssa] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem pinskia at gcc dot gnu dot org
2004-02-09 2:21 ` pinskia at gcc dot gnu dot org
2004-03-01 16:57 ` amacleod at redhat dot com
2004-05-15 3:38 ` [Bug tree-optimization/14029] [3.5 Regression] " pinskia at gcc dot gnu dot org
2004-07-10 1:25 ` pinskia at gcc dot gnu dot org
2004-07-26 22:46 ` pinskia at gcc dot gnu dot org
2004-08-23 3:12 ` cvs-commit at gcc dot gnu dot org
2004-08-23 3:13 ` pinskia at gcc dot gnu dot org
2004-08-23 4:02 ` cvs-commit at gcc dot gnu dot org
2004-08-23 18:25 ` cvs-commit at gcc dot gnu dot org
2004-08-23 18:28 ` cvs-commit at gcc dot gnu dot org
2004-09-14 22:58 ` [Bug tree-optimization/14029] [4.0 " dnovillo at gcc dot gnu dot org
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