There are some other quirks with the MicroBlaze architecture.
The cmp/cmpu instructions only take a register. Other instructions
which can be used for equality or signed comparisons (xor or sub)
can take an immediate operand. I'll see how they can be added.
You can probably convince combine
- .ident GCC: (GNU) 4.5.0 20091226 (experimental)
+ .ident GCC: (GNU) 4.5.0 20091217 (experimental)
.section.note.GNU-stack,,@progbits
[1] http://gcc.gnu.org/ml/fortran/2009-12/msg00170.html
One of users managed to add '-fkeep-inline-functions' flag to his CFLAGS and
managed to break build of our project. Simple example:
/* a.c: */
extern int foo(void);
static inline int unused_function(void) { return foo(); }
int main(void){ return 42; }
/* shell: */
$ /tmp:gcc a.c -o a # all ok
$
--- Comment #4 from zsojka at seznam dot cz 2009-12-26 10:50 ---
Created an attachment (id=19393)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19393action=view)
even more reduced testcase
I have a suspicion this warning is valid. There is an app that (sometimes)
crashes when code
--- Comment #1 from jakub at gcc dot gnu dot org 2009-12-26 10:55 ---
It is not useless, the reason you in some cases want to keep out of line copies
of inline functions is e.g. debugging, if there is no out of line copy of a
function, you can't call it from within the debugger.
--
--- Comment #9 from paolo dot carlini at oracle dot com 2009-12-26 11:03
---
I understand can be closed as fixed now.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
I get an ICE when compiling this file using this command (file to be attached.)
C:\g++ -c -Wreturn-type -fno-strict-aliasing -O2 -frtti -fexceptions
-mthreads -o RenderMenuList.o RenderMenuList.ii
rendering/RenderMenuList.cpp: In member function
'WebCore::RenderMenuList::contr
olClipRect(int,
+++ This bug was initially created as a clone of Bug #42290 +++
Command line:
g++ -O1 -fipa-sra testcase.cpp ./a.out
(-Wall shows valid (but misleading?) warnings as described in bug 42290)
Tested versions:
r155434 - broken
r154886 - broken
r154830 - OK
r153685 - OK
Output:
g++ -O1 -fipa-sra
--- Comment #1 from zsojka at seznam dot cz 2009-12-26 11:20 ---
Created an attachment (id=19394)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19394action=view)
testcase
Command line:
g++ -O1 -fipa-sra pr42508.cpp ./a.out
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42508
--- Comment #5 from zsojka at seznam dot cz 2009-12-26 11:23 ---
I opened the wrong code bug as pr42508
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42290
current trunk (including all changes from 20091223), native build configured
with --with-arch=armv7-a --with-float=softfp --with-fpu=vfpv3-d16
--with-mode=thumb, fails in stage3 (--with-mode=thumb the option to trigger
this):
if [ x-fPIC != x ]; then \
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 12:38
---
Has been fixed a lot of time ago.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #5 from paolo dot carlini at oracle dot com 2009-12-26 12:43
---
Works in mainline, not a regression, closing.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 12:47
---
Fixed a lot of time ago.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #8 from paolo dot carlini at oracle dot com 2009-12-26 13:52
---
Will not be fixed in 4_3-branch.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #8 from paolo dot carlini at oracle dot com 2009-12-26 13:53
---
Will not be fixed in 4_3-branch.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #4 from paolo dot carlini at oracle dot com 2009-12-26 13:57
---
Works fine in mainline indeed.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #7 from paolo dot carlini at oracle dot com 2009-12-26 14:04
---
Please provide a self-contained .ii, see:
http://gcc.gnu.org/bugs/#report
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42355
--- Comment #8 from paolo dot carlini at oracle dot com 2009-12-26 14:06
---
Also, please do your best to minimize it, see:
http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42355
--- Comment #5 from paolo dot carlini at oracle dot com 2009-12-26 14:20
---
Feedback not forthcoming.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
AssignedTo|unassigned at gcc dot gnu |paolo dot carlini at oracle
|dot org
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 14:32
---
Yes, fixed long time ago.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 14:38
---
Fixed a long time ago.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #1 from mikpe at it dot uu dot se 2009-12-26 14:59 ---
Reverting r155171 allows gcc-4.4-20091215 to build a working libjava again.
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=155171
Log:
2009-12-11 Ramana Radhakrishnan ramana.radhakrish...@arm.com
PR
--- Comment #2 from slyfox at inbox dot ru 2009-12-26 15:34 ---
(In reply to comment #1)
It is not useless, the reason you in some cases want to keep out of line
copies
of inline functions is e.g. debugging, if there is no out of line copy of a
function, you can't call it from
gcc.dg/graphite/block-4.c fails at random. On Linux/x86-64, valgrind
reports:
==11194== Invalid read of size 8
==11194==at 0xC714EE: lst_interchange_select_inner
(graphite-interchange.c:708)
==11194==by 0xC72725: lst_interchange_select_outer
(graphite-interchange.c:732)
==11194==by
--- Comment #1 from hjl dot tools at gmail dot com 2009-12-26 16:22 ---
Gcc 4.4.2 runs cleanly under valgrind.
--
hjl dot tools at gmail dot com changed:
What|Removed |Added
--- Comment #9 from jason at gcc dot gnu dot org 2009-12-26 16:25 ---
Subject: Bug 42331
Author: jason
Date: Sat Dec 26 16:24:53 2009
New Revision: 155474
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=155474
Log:
PR c++/42331
* typeck.c (cp_build_modify_expr):
--- Comment #10 from jason at gcc dot gnu dot org 2009-12-26 16:25 ---
Fixed.
--
jason at gcc dot gnu dot org changed:
What|Removed |Added
Status|ASSIGNED
seen with trunk 20091226, lowering optimization to -O1 works around the
problem.
Matthias
if [ x-fPIC != x ]; then \
/home/doko/gcc/gcc-4.5-4.5-20091226/build/./prev-gcc/xgcc
-B/home/doko/gcc/gcc-4.5-4.5-20091226/build/./prev-gcc/
-B/usr/alpha-linux-gnu/bin/ -B/usr/alpha-linux-gnu
--- Comment #1 from debian-gcc at lists dot debian dot org 2009-12-26
18:01 ---
Created an attachment (id=19395)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19395action=view)
preprocessed source
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42511
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 18:20
---
The error message is fine in the released 4.4.0, not a regression, closing.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #3 from paolo dot carlini at oracle dot com 2009-12-26 18:23
---
No feedback for 20 months, closing. CC-ing David in case he wants to add
something...
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #5 from paolo dot carlini at oracle dot com 2009-12-26 18:31
---
Let's CC Jason about this (frankly, I have *always* used double parentheses, I
thought that was the only legal syntax ;)
--
paolo dot carlini at oracle dot com changed:
What|Removed
--- Comment #8 from paolo dot carlini at oracle dot com 2009-12-26 18:36
---
Will not be fixed in 4_3-branch.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 18:43
---
This is definitely invalid. The linkage isn't weak, and you get exactly into
the same problem of a plain:
struct u
{
static int const v;
};
int const u::v = 42;
--
paolo dot carlini at oracle dot com
--- Comment #1 from paolo dot carlini at oracle dot com 2009-12-26 18:50
---
Yes, this is exactly what the Standard says, see 27.3/2, the behavior changed,
we are more conforming lately.
--
paolo dot carlini at oracle dot com changed:
What|Removed
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
Severity|major |normal
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38543
--- Comment #7 from paolo dot carlini at oracle dot com 2009-12-26 19:03
---
Jakub, I guess we can close this?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39554
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 19:10
---
I find this disturbing. Let's CC Jason...
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 19:12
---
Maybe related to c++/36625 ?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40821
--- Comment #6 from paolo dot carlini at oracle dot com 2009-12-26 19:13
---
Maybe related to c++/40821 ?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36625
--- Comment #10 from paolo dot carlini at oracle dot com 2009-12-26 19:16
---
Dodji, can we close this one at this point?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39987
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 19:19
---
Fix (by Jason, I think) in mainline, not a regression, closing.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #2 from hjl dot tools at gmail dot com 2009-12-26 19:22 ---
This is caused by revision 155418:
http://gcc.gnu.org/ml/gcc-cvs/2009-12/msg00562.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42510
--- Comment #8 from jakub at gcc dot gnu dot org 2009-12-26 19:26 ---
The feature has been removed.
--
jakub at gcc dot gnu dot org changed:
What|Removed |Added
reg...@john-home:~$ current-gcc -v
Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/home/regehr/z/tmp/gcc-r155465-install/libexec/gcc/i686-pc-linux-gnu/4.5.0/lto-wrapper
Target: i686-pc-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--- Comment #5 from ebotcazou at gcc dot gnu dot org 2009-12-26 19:44
---
Jan, you're responsible for fixing things you broke. There is a reduced
testcase and the ICE can be reproduced with a cross on x86_64-linux.
--
ebotcazou at gcc dot gnu dot org changed:
What
--- Comment #1 from jakub at gcc dot gnu dot org 2009-12-26 20:00 ---
This breaks during ivopts.
--
jakub at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #3 from janus at gcc dot gnu dot org 2009-12-26 20:11 ---
There is a pass 'diagnose_omp_blocks', which generates the error message for
the C code. Its execution function is 'diagnose_omp_structured_block_errors' in
omp-low.x, which is correctly called also for Fortran code.
--- Comment #11 from dodji at gcc dot gnu dot org 2009-12-26 20:31 ---
Yes, I forgot to do it. Sorry about that.
Setting the target milestone to 4.4 and closing.
--
dodji at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #2 from hjl dot tools at gmail dot com 2009-12-26 21:04 ---
It is caused by revision 154880:
http://gcc.gnu.org/ml/gcc-cvs/2009-12/msg00024.html
--
hjl dot tools at gmail dot com changed:
What|Removed |Added
--- Comment #6 from rupp at gnat dot com 2009-12-26 21:18 ---
ICE on alpha64-dec-openvms* with 20091224 sources.
--
rupp at gnat dot com changed:
What|Removed |Added
When using all O3 flags without -ftree-vectorize, all work good.
So, I think there is a trouble which can be determined by testing this option
on sys-libs/zlib - package.
--
Summary: -ftree-vectorize and zlib: firefox crashes with
segmentation faults on start
--- Comment #1 from hjl dot tools at gmail dot com 2009-12-26 21:44 ---
Try adding -mstackrealign.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42513
--- Comment #4 from janus at gcc dot gnu dot org 2009-12-26 21:44 ---
I'm curious why this problem only appears for Fortran code and not for C. If it
is a 'glibc feature', then both should be equally affected, or am I mistaken?
The following C program does not show the runtime segfault
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
Target Milestone|--- |4.4.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37260
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
Target Milestone|--- |4.4.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33492
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
Target Milestone|--- |4.4.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40749
--- Comment #2 from mecareful at gmail dot com 2009-12-26 22:01 ---
(In reply to comment #1)
Try adding -mstackrealign.
Now firefox works and does not segfaults on start and works later.
(And thunderbird works now too)
Thanks a lot! :-)
--
--- Comment #5 from pinskia at gcc dot gnu dot org 2009-12-26 22:10 ---
Still a glibc feature as using the shared glibc/pthreads works. Also does on
darwin and other targets.
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #6 from pinskia at gcc dot gnu dot org 2009-12-26 22:11 ---
Oh and the most likely reason is that why Fortran fails and C works is because
libgfortran weakly imports some pthread symbols which causes the pthread static
library not to be fully included.
--
--- Comment #2 from hjl dot tools at gmail dot com 2009-12-26 22:13 ---
It may be caused by revision 147716:
http://gcc.gnu.org/ml/gcc-cvs/2009-05/msg00693.html
--
hjl dot tools at gmail dot com changed:
What|Removed |Added
--- Comment #3 from hjl dot tools at gmail dot com 2009-12-26 22:16 ---
It is related to PR 41497.
--
hjl dot tools at gmail dot com changed:
What|Removed |Added
--- Comment #3 from hjl dot tools at gmail dot com 2009-12-26 22:19 ---
*** This bug has been marked as a duplicate of 40838 ***
--
hjl dot tools at gmail dot com changed:
What|Removed |Added
--- Comment #66 from hjl dot tools at gmail dot com 2009-12-26 22:19
---
*** Bug 42513 has been marked as a duplicate of this bug. ***
--
hjl dot tools at gmail dot com changed:
What|Removed |Added
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-26 22:27
---
Not a regression, works in current release branch and mainline. Closing.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #4 from janus at gcc dot gnu dot org 2009-12-26 22:31 ---
Here are test cases in Fortran and C, which both use GOTOs. Again, the Fortran
code ICEs, while the C code gives an error message:
subroutine sub
integer :: nRead
!$omp critical
if (nRead3) goto 100
--- Comment #3 from paolo dot carlini at oracle dot com 2009-12-26 22:40
---
Feedback not forthcoming.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #5 from janus at gcc dot gnu dot org 2009-12-26 22:46 ---
For the Fortran test case in comment #4, diagnose_sb_2 (omp-low.c) is called
six times, with the following statements:
* GIMPLE_BIND
* GIMPLE_OMP_CRITICAL
* GIMPLE_COND
* GIMPLE_LABEL
* GIMPLE_LABEL
* GIMPLE_ASSIGN
--- Comment #2 from steven at gcc dot gnu dot org 2009-12-27 00:45 ---
*** This bug has been marked as a duplicate of 21803 ***
--
steven at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #3 from steven at gcc dot gnu dot org 2009-12-27 00:45 ---
*** Bug 42496 has been marked as a duplicate of this bug. ***
--
steven at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #3 from paolo dot carlini at oracle dot com 2009-12-27 01:47
---
Feedback not forthcoming.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
--- Comment #2 from paolo dot carlini at oracle dot com 2009-12-27 01:54
---
Fixed for 4.5.0, not a regression, closing as fixed.
--
paolo dot carlini at oracle dot com changed:
What|Removed |Added
Obviously the following code of the definition of class destructor is wrong,
but it passed g++ 4.4.2 in Fedora 12. However g++ 4.1.2 and g++ 3.4.6 in Fedora
12 reported the error.
The testing code is list below:
#include iostream
template typename T
class Base
{
public:
Base();
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