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* [Bug middle-end/43013] [4.5/4.6 regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check
[not found] <bug-43013-4@http.gcc.gnu.org/bugzilla/>
@ 2010-10-01 11:55 ` jakub at gcc dot gnu.org
2011-04-16 10:24 ` [Bug middle-end/43013] [4.5/4.6/4.7 " jakub at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-10-01 11:55 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43013
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.5 |4.4.6
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/43013] [4.5/4.6/4.7 regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check
[not found] <bug-43013-4@http.gcc.gnu.org/bugzilla/>
2010-10-01 11:55 ` [Bug middle-end/43013] [4.5/4.6 regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check jakub at gcc dot gnu.org
@ 2011-04-16 10:24 ` jakub at gcc dot gnu.org
2012-03-13 15:06 ` [Bug middle-end/43013] [4.5/4.6/4.7/4.8 " jakub at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-04-16 10:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43013
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.6 |4.4.7
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/43013] [4.5/4.6/4.7/4.8 regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check
[not found] <bug-43013-4@http.gcc.gnu.org/bugzilla/>
2010-10-01 11:55 ` [Bug middle-end/43013] [4.5/4.6 regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check jakub at gcc dot gnu.org
2011-04-16 10:24 ` [Bug middle-end/43013] [4.5/4.6/4.7 " jakub at gcc dot gnu.org
@ 2012-03-13 15:06 ` jakub at gcc dot gnu.org
2012-05-26 14:24 ` [Bug middle-end/43013] [4.5 " ebotcazou at gcc dot gnu.org
2012-07-02 10:47 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-03-13 15:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43013
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.4.7 |4.5.4
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-03-13 12:47:21 UTC ---
4.4 branch is being closed, moving to 4.5.4 target.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/43013] [4.5 regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check
[not found] <bug-43013-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2012-03-13 15:06 ` [Bug middle-end/43013] [4.5/4.6/4.7/4.8 " jakub at gcc dot gnu.org
@ 2012-05-26 14:24 ` ebotcazou at gcc dot gnu.org
2012-07-02 10:47 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 9+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2012-05-26 14:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43013
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.5/4.6/4.7/4.8 |[4.5 regression] "warning:
|regression] "warning: |'saved_stack.1' is used
|'saved_stack.1' is used |uninitialized in this
|uninitialized in this |function" with
|function" with |-fstack-check
|-fstack-check |
--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-05-26 14:17:26 UTC ---
Fixed on mainstream platforms since 4.6.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/43013] [4.5 regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check
[not found] <bug-43013-4@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2012-05-26 14:24 ` [Bug middle-end/43013] [4.5 " ebotcazou at gcc dot gnu.org
@ 2012-07-02 10:47 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-07-02 10:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43013
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Target Milestone|4.5.4 |4.6.0
--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-02 10:47:13 UTC ---
Fixed in 4.6.0, the 4.5 branch is being closed.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/43013] [4.5 Regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check
2010-02-09 22:17 [Bug tree-optimization/43013] New: "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-protector zsojka at seznam dot cz
` (2 preceding siblings ...)
2010-02-11 18:28 ` pinskia at gcc dot gnu dot org
@ 2010-02-11 18:55 ` ebotcazou at gcc dot gnu dot org
3 siblings, 0 replies; 9+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2010-02-11 18:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from ebotcazou at gcc dot gnu dot org 2010-02-11 18:55 -------
> Note this works correctly on targets that define STACK_CHECK_BUILTIN to be 1.
> This includes the spu target. The main reason is that the code goes through a
> different path.
Indeed, only generic stack checking is affected, so every target except for the
Alpha and SPU. The plan for 4.6 is to switch the other targets (or at least
x86 and x86-64) to STACK_CHECK_STATIC_BUILTIN, which isn't affected either.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43013
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/43013] [4.5 Regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check
2010-02-09 22:17 [Bug tree-optimization/43013] New: "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-protector zsojka at seznam dot cz
2010-02-11 12:23 ` [Bug middle-end/43013] [4.5 Regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check ebotcazou at gcc dot gnu dot org
2010-02-11 16:55 ` rguenth at gcc dot gnu dot org
@ 2010-02-11 18:28 ` pinskia at gcc dot gnu dot org
2010-02-11 18:55 ` ebotcazou at gcc dot gnu dot org
3 siblings, 0 replies; 9+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2010-02-11 18:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pinskia at gcc dot gnu dot org 2010-02-11 18:28 -------
Note this works correctly on targets that define STACK_CHECK_BUILTIN to be 1.
This includes the spu target. The main reason is that the code goes through a
different path.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
GCC target triplet| |i?86-*-* x86_64-*-*
| |powerpc*-*-*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43013
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/43013] [4.5 Regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check
2010-02-09 22:17 [Bug tree-optimization/43013] New: "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-protector zsojka at seznam dot cz
2010-02-11 12:23 ` [Bug middle-end/43013] [4.5 Regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check ebotcazou at gcc dot gnu dot org
@ 2010-02-11 16:55 ` rguenth at gcc dot gnu dot org
2010-02-11 18:28 ` pinskia at gcc dot gnu dot org
2010-02-11 18:55 ` ebotcazou at gcc dot gnu dot org
3 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-02-11 16:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2010-02-11 16:55 -------
P4 according to comment #3
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43013
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/43013] [4.5 Regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check
2010-02-09 22:17 [Bug tree-optimization/43013] New: "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-protector zsojka at seznam dot cz
@ 2010-02-11 12:23 ` ebotcazou at gcc dot gnu dot org
2010-02-11 16:55 ` rguenth at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 9+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2010-02-11 12:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from ebotcazou at gcc dot gnu dot org 2010-02-11 12:23 -------
I'll write a book about -fstack-check someday... -fstack-check was severely
broken during the GCC3 -> GCC4 transition and, despite years of patches posting
and pinging, only GCC 4.5 has the beginning of a working implementation, so
anything between 4.0 and 4.4 must be forgotten since totally broken.
And, again despite posted patches, the 4.5 implementation only restores the old
implementation available in the 3.x series, which doesn't work for this case:
eric@atlantis:~/build/gcc/native32> ~/install/gcc-3_4-branch/bin/gcc -v
Reading specs from
/home/eric/install/gcc-3_4-branch/lib/gcc/x86_64-suse-linux/3.4.6/specs
Configured with: /home/eric/svn/gcc-3_4-branch/configure x86_64-suse-linux
--prefix=/home/eric/install/gcc-3_4-branch
--enable-languages=c,c++,objc,f77,java,ada --enable-__cxa_atexit
Thread model: posix
gcc version 3.4.6
eric@atlantis:~/build/gcc/native32> ~/install/gcc-3_4-branch/bin/gcc -m32 -S
pr43013.c
eric@atlantis:~/build/gcc/native32> ~/install/gcc-3_4-branch/bin/gcc -m32 -S
pr43013.c -fstack-check
pr43013.c: In function `foo':
pr43013.c:6: error: label 'lab' used before containing binding contour
Granted, we now generate wrong code instead of erroring out, but it's again a
fallout of the GCC3 -> GCC4 breakage, not of my patches.
This will be fixed once the improved implementation is merged. ETA is 4.6, for
x86/x86-64 at least.
--
ebotcazou at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.4/4.5 Regression] |[4.5 Regression] "warning:
|"warning: 'saved_stack.1' is|'saved_stack.1' is used
|used uninitialized in this |uninitialized in this
|function" with -fstack-check|function" with -fstack-check
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43013
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2012-07-02 10:47 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-43013-4@http.gcc.gnu.org/bugzilla/>
2010-10-01 11:55 ` [Bug middle-end/43013] [4.5/4.6 regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check jakub at gcc dot gnu.org
2011-04-16 10:24 ` [Bug middle-end/43013] [4.5/4.6/4.7 " jakub at gcc dot gnu.org
2012-03-13 15:06 ` [Bug middle-end/43013] [4.5/4.6/4.7/4.8 " jakub at gcc dot gnu.org
2012-05-26 14:24 ` [Bug middle-end/43013] [4.5 " ebotcazou at gcc dot gnu.org
2012-07-02 10:47 ` rguenth at gcc dot gnu.org
2010-02-09 22:17 [Bug tree-optimization/43013] New: "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-protector zsojka at seznam dot cz
2010-02-11 12:23 ` [Bug middle-end/43013] [4.5 Regression] "warning: 'saved_stack.1' is used uninitialized in this function" with -fstack-check ebotcazou at gcc dot gnu dot org
2010-02-11 16:55 ` rguenth at gcc dot gnu dot org
2010-02-11 18:28 ` pinskia at gcc dot gnu dot org
2010-02-11 18:55 ` ebotcazou at gcc dot gnu dot org
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