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* [Bug optimization/12187] New: Miscompilation of nested functions using host variables
@ 2003-09-05 22:34 pbrook at gcc dot gnu dot org
2003-09-05 23:11 ` [Bug optimization/12187] " pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: pbrook at gcc dot gnu dot org @ 2003-09-05 22:34 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12187
Summary: Miscompilation of nested functions using host variables
Product: gcc
Version: tree-ssa
Status: UNCONFIRMED
Keywords: wrong-code
Severity: critical
Priority: P2
Component: optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pbrook at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
Functions containing nested functions which write to variables in their parent
are miscompiled. This might be rare in C, but is quite common in Fortran.
Simple Testcase
int main()
{
int a;
void test(int i)
{
a = i;
};
a = 0;
test (42);
if (a != 42)
abort ();
exit (0);
}
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/12187] Miscompilation of nested functions using host variables
2003-09-05 22:34 [Bug optimization/12187] New: Miscompilation of nested functions using host variables pbrook at gcc dot gnu dot org
@ 2003-09-05 23:11 ` pinskia at gcc dot gnu dot org
2003-09-14 22:39 ` steven at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2003-09-05 23:11 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12187
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2003-09-05 23:11:32
date| |
Target Milestone|--- |tree-ssa
------- Additional Comments From pinskia at gcc dot gnu dot org 2003-09-05 23:11 -------
I thought I saw a bug like this before, the problem is that the store to a in test is removed by dce.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/12187] Miscompilation of nested functions using host variables
2003-09-05 22:34 [Bug optimization/12187] New: Miscompilation of nested functions using host variables pbrook at gcc dot gnu dot org
2003-09-05 23:11 ` [Bug optimization/12187] " pinskia at gcc dot gnu dot org
@ 2003-09-14 22:39 ` steven at gcc dot gnu dot org
2003-09-14 22:41 ` steven at gcc dot gnu dot org
2003-10-08 23:50 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: steven at gcc dot gnu dot org @ 2003-09-14 22:39 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12187
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Last reconfirmed|2003-09-05 23:11:32 |2003-09-14 21:41:10
date| |
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/12187] Miscompilation of nested functions using host variables
2003-09-05 22:34 [Bug optimization/12187] New: Miscompilation of nested functions using host variables pbrook at gcc dot gnu dot org
2003-09-05 23:11 ` [Bug optimization/12187] " pinskia at gcc dot gnu dot org
2003-09-14 22:39 ` steven at gcc dot gnu dot org
@ 2003-09-14 22:41 ` steven at gcc dot gnu dot org
2003-10-08 23:50 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: steven at gcc dot gnu dot org @ 2003-09-14 22:41 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12187
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |steven at gcc dot gnu dot
|dot org |org
------- Additional Comments From steven at gcc dot gnu dot org 2003-09-14 21:41 -------
mine mine mine!
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/12187] Miscompilation of nested functions using host variables
2003-09-05 22:34 [Bug optimization/12187] New: Miscompilation of nested functions using host variables pbrook at gcc dot gnu dot org
` (2 preceding siblings ...)
2003-09-14 22:41 ` steven at gcc dot gnu dot org
@ 2003-10-08 23:50 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2003-10-08 23:50 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12187
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
------- Additional Comments From pinskia at gcc dot gnu dot org 2003-10-08 23:50 -------
Fixed on the branch.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2003-10-08 23:50 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2003-09-05 22:34 [Bug optimization/12187] New: Miscompilation of nested functions using host variables pbrook at gcc dot gnu dot org
2003-09-05 23:11 ` [Bug optimization/12187] " pinskia at gcc dot gnu dot org
2003-09-14 22:39 ` steven at gcc dot gnu dot org
2003-09-14 22:41 ` steven at gcc dot gnu dot org
2003-10-08 23:50 ` pinskia at gcc dot gnu dot org
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