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* [Bug c/16918] New: When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3
@ 2004-08-08 13:14 gopalv82 at gmail dot com
2004-08-08 13:22 ` [Bug c/16918] " gopalv82 at gmail dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: gopalv82 at gmail dot com @ 2004-08-08 13:14 UTC (permalink / raw)
To: gcc-bugs
The ILNode_BinaryArith_ILNode_GenValue__() function contains
if(ReduceOperator(info, (ILNode*)node, (ILNode**)&node, commonType))
{
// recursion
ILNode_GenValue(node);
}
ReduceOperator returns 1 only if the out parameter was modified - however this
is setting up a recursive loop when compiled with "-O2" , but "-O1" works as
expected.
When a second variable is used for the outParameter , this is not observed.
The broken (before/) and workedaround (after/) preprocessed .i file and assembly
listing are available in
http://demo.dotgnu.org/~t3rmin4t0r/code/ppc64-segfault.tar.gz (159k) .
Test was performed on a DUAL G5 (specs inside the tarball).
--
Summary: When out parameter to inlined functions is used based on
the return , the return value is ignored in PPC64 in -O2
and -O3
Product: gcc
Version: 3.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: gopalv82 at gmail dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: powerpc-unknown-linux-gnu
GCC host triplet: powerpc-unknown-linux-gnu
GCC target triplet: powerpc-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16918
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/16918] When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3
2004-08-08 13:14 [Bug c/16918] New: When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3 gopalv82 at gmail dot com
@ 2004-08-08 13:22 ` gopalv82 at gmail dot com
2004-08-08 13:50 ` rainer dot groesslinger at gmx dot net
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: gopalv82 at gmail dot com @ 2004-08-08 13:22 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From gopalv82 at gmail dot com 2004-08-08 13:22 -------
Lowered priority to minor.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |minor
Summary|When out parameter to |When out parameter to
|inlined functions is used |inlined functions is used
|based on the return , the |based on the return , the
|return value is ignored in |return value is ignored in
|PPC64 in -O2 and -O3 |PPC64 in -O2 and -O3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16918
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/16918] When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3
2004-08-08 13:14 [Bug c/16918] New: When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3 gopalv82 at gmail dot com
2004-08-08 13:22 ` [Bug c/16918] " gopalv82 at gmail dot com
@ 2004-08-08 13:50 ` rainer dot groesslinger at gmx dot net
2004-08-08 14:36 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rainer dot groesslinger at gmx dot net @ 2004-08-08 13:50 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |rainer dot groesslinger at
| |gmx dot net
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16918
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/16918] When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3
2004-08-08 13:14 [Bug c/16918] New: When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3 gopalv82 at gmail dot com
2004-08-08 13:22 ` [Bug c/16918] " gopalv82 at gmail dot com
2004-08-08 13:50 ` rainer dot groesslinger at gmx dot net
@ 2004-08-08 14:36 ` pinskia at gcc dot gnu dot org
2005-06-05 8:53 ` pinskia at gcc dot gnu dot org
2005-06-05 8:53 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-08-08 14:36 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-08-08 14:36 -------
You are breaking the C standard aliasing rules:
ILNode*)node, (ILNode**)&node
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16918
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/16918] When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3
2004-08-08 13:14 [Bug c/16918] New: When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3 gopalv82 at gmail dot com
` (3 preceding siblings ...)
2005-06-05 8:53 ` pinskia at gcc dot gnu dot org
@ 2005-06-05 8:53 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-06-05 8:53 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-06-05 08:53 -------
Mark as a dup of bug 21920
*** This bug has been marked as a duplicate of 21920 ***
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16918
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c/16918] When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3
2004-08-08 13:14 [Bug c/16918] New: When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3 gopalv82 at gmail dot com
` (2 preceding siblings ...)
2004-08-08 14:36 ` pinskia at gcc dot gnu dot org
@ 2005-06-05 8:53 ` pinskia at gcc dot gnu dot org
2005-06-05 8:53 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-06-05 8:53 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-06-05 08:53 -------
Reopening to ...
--
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|INVALID |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16918
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2005-06-05 8:53 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-08-08 13:14 [Bug c/16918] New: When out parameter to inlined functions is used based on the return , the return value is ignored in PPC64 in -O2 and -O3 gopalv82 at gmail dot com
2004-08-08 13:22 ` [Bug c/16918] " gopalv82 at gmail dot com
2004-08-08 13:50 ` rainer dot groesslinger at gmx dot net
2004-08-08 14:36 ` pinskia at gcc dot gnu dot org
2005-06-05 8:53 ` pinskia at gcc dot gnu dot org
2005-06-05 8:53 ` pinskia at gcc dot gnu dot org
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