--- Comment #11 from rguenth at gcc dot gnu dot org 2008-05-03 11:03
---
No it must not. If your program is bogus then it is bogus.
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
---
--- Comment #10 from snes2002 at freenet dot de 2008-05-03 10:26 ---
This is definitely a bug.
The same source-code must do the same thing, no matter what optimize-options
are enabled or disabled.
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snes2002 at freenet dot de changed:
What|Removed
dereference the actual pointer.
It seems to be cached somehow in a register and not read realtime.
If there are additional exit-conditions in loops (because of
speed-optimization)
they won't be recognized.
- original Nachricht ----
Betreff: [Bug driver/36081] gcc optimiza
--- Comment #8 from pinskia at gcc dot gnu dot org 2008-04-29 19:11 ---
>And for syncing the threads, that's the easiest way.
Use mutexes then, they are designed exactly for this.
>I don't want so serialize the threads, I want to use all 2 processors of my
dual-core.
You are serializi
don't want so serialize the threads, I want to use all 2 processors of my
dual-core.
And for syncing the threads, that's the easiest way.
Works fine whithout optimizations and also works with borland c++-compiler with
all optimizations.
- original Nachricht ----
Betreff: [B
--- Comment #6 from snes2002 at freenet dot de 2008-04-29 18:59 ---
This c-code works with optimizations turned off.
With borland compiler it also works with optimizations turned on.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36081
--- Comment #5 from snes2002 at freenet dot de 2008-04-29 18:57 ---
Created an attachment (id=15550)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15550&action=view)
assembler listing
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36081
--- Comment #4 from snes2002 at freenet dot de 2008-04-29 18:56 ---
Created an attachment (id=15549)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15549&action=view)
preprocessed file
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36081
--- Comment #3 from snes2002 at freenet dot de 2008-04-29 18:55 ---
Created an attachment (id=15548)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15548&action=view)
c source
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36081
--- Comment #2 from pinskia at gcc dot gnu dot org 2008-04-29 18:54 ---
This is correct behavior, you need either use volatile or use locks.
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #1 from snes2002 at freenet dot de 2008-04-29 18:54 ---
Created an attachment (id=15547)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15547&action=view)
gcc output
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36081
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