public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug java/28089] New: jc1 miscompilation with fields inherited from interfaces
@ 2006-06-19 22:45 tromey at gcc dot gnu dot org
2006-06-20 18:13 ` [Bug java/28089] " tromey at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: tromey at gcc dot gnu dot org @ 2006-06-19 22:45 UTC (permalink / raw)
To: gcc-bugs
Look at initfield.java or PR162.java from the test suite.
>From initfield:
interface iface
{
final value x = new value();
}
public class initfield implements iface
{
public static void main(String[] args)
{
System.out.println(x.field);
...
When compiled with a correct java compiler (not gcj)
to bytecode, this line is compiled as:
0: getstatic #18=<Field java.lang.System.out java.io.PrintStream>
3: getstatic #24=<Field initfield.x value>
6: getfield #28=<Field value.field java.lang.Object>
9: invokevirtual #34=<Method java.io.PrintStream.println
(java.lang.Object)void>
Note at PC=3 how the qualifying class is 'initfield', not 'iface'.
If this class is the run through gcj (using the c++ abi) the resulting
program will crash.
I think the fix is for gcj to notice this situation and emit an
explicit class initialization call for the declaring class of the field.
This conforms to the overall c++ abi idea; for BC we already properly
handle this at runtime.
This is a blocker for ecj integration.
--
Summary: jc1 miscompilation with fields inherited from interfaces
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: java
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tromey at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28089
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug java/28089] jc1 miscompilation with fields inherited from interfaces
2006-06-19 22:45 [Bug java/28089] New: jc1 miscompilation with fields inherited from interfaces tromey at gcc dot gnu dot org
@ 2006-06-20 18:13 ` tromey at gcc dot gnu dot org
2006-06-21 18:12 ` tromey at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: tromey at gcc dot gnu dot org @ 2006-06-20 18:13 UTC (permalink / raw)
To: gcc-bugs
--
tromey at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |tromey at gcc dot gnu dot
|dot org |org
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2006-06-20 18:11:55
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28089
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug java/28089] jc1 miscompilation with fields inherited from interfaces
2006-06-19 22:45 [Bug java/28089] New: jc1 miscompilation with fields inherited from interfaces tromey at gcc dot gnu dot org
2006-06-20 18:13 ` [Bug java/28089] " tromey at gcc dot gnu dot org
@ 2006-06-21 18:12 ` tromey at gcc dot gnu dot org
2006-06-21 18:15 ` tromey at gcc dot gnu dot org
2006-09-12 19:41 ` tromey at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: tromey at gcc dot gnu dot org @ 2006-06-21 18:12 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from tromey at gcc dot gnu dot org 2006-06-21 18:01 -------
Subject: Bug 28089
Author: tromey
Date: Wed Jun 21 18:01:37 2006
New Revision: 114856
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114856
Log:
PR java/28089:
* expr.c (expand_java_field_op): Initialize field's declaring
class.
Modified:
branches/gcj-eclipse/gcc/java/ChangeLog
branches/gcj-eclipse/gcc/java/expr.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28089
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug java/28089] jc1 miscompilation with fields inherited from interfaces
2006-06-19 22:45 [Bug java/28089] New: jc1 miscompilation with fields inherited from interfaces tromey at gcc dot gnu dot org
2006-06-20 18:13 ` [Bug java/28089] " tromey at gcc dot gnu dot org
2006-06-21 18:12 ` tromey at gcc dot gnu dot org
@ 2006-06-21 18:15 ` tromey at gcc dot gnu dot org
2006-09-12 19:41 ` tromey at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: tromey at gcc dot gnu dot org @ 2006-06-21 18:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from tromey at gcc dot gnu dot org 2006-06-21 18:14 -------
Fix checked in on gcj-eclipse branch.
--
tromey at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28089
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug java/28089] jc1 miscompilation with fields inherited from interfaces
2006-06-19 22:45 [Bug java/28089] New: jc1 miscompilation with fields inherited from interfaces tromey at gcc dot gnu dot org
` (2 preceding siblings ...)
2006-06-21 18:15 ` tromey at gcc dot gnu dot org
@ 2006-09-12 19:41 ` tromey at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: tromey at gcc dot gnu dot org @ 2006-09-12 19:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from tromey at gcc dot gnu dot org 2006-09-12 19:41 -------
Also fixed on trunk; updating target milestone.
--
tromey at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.2.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28089
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2006-09-12 19:41 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-06-19 22:45 [Bug java/28089] New: jc1 miscompilation with fields inherited from interfaces tromey at gcc dot gnu dot org
2006-06-20 18:13 ` [Bug java/28089] " tromey at gcc dot gnu dot org
2006-06-21 18:12 ` tromey at gcc dot gnu dot org
2006-06-21 18:15 ` tromey at gcc dot gnu dot org
2006-09-12 19:41 ` tromey at gcc dot gnu dot org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).