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* [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192
@ 2006-05-24 14:54 tromey at gcc dot gnu dot org
2006-05-24 14:56 ` [Bug java/27756] " tromey at gcc dot gnu dot org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: tromey at gcc dot gnu dot org @ 2006-05-24 14:54 UTC (permalink / raw)
To: java-prs
Compile the attached bytecode to see the ICE:
opsy. gcj -c -findirect-dispatch
./bin/org/eclipse/jdt/internal/core/NameLookup.class
org/eclipse/jdt/internal/core/NameLookup.java: In class
'org.eclipse.jdt.internal.core.NameLookup':
org/eclipse/jdt/internal/core/NameLookup.java: In method
'org.eclipse.jdt.internal.core.NameLookup.seekTypesInBinaryPackage(java.lang.String,org.eclipse.jdt.core.IPackageFragment,boolean,int,org.eclipse.jdt.internal.core.IJavaElementRequestor)':
org/eclipse/jdt/internal/core/NameLookup.java:980: internal compiler error: in
update_aliases, at java/decl.c:192
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
This happens for me with 4.1 and svn head.
The bytecode is a class generated by ecj;
the corresponding source code also comes from ecj.
--
Summary: ICE in update_aliases, at java/decl.c:192
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: java
AssignedTo: aph at gcc dot gnu dot org
ReportedBy: tromey at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27756
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug java/27756] ICE in update_aliases, at java/decl.c:192
2006-05-24 14:54 [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192 tromey at gcc dot gnu dot org
@ 2006-05-24 14:56 ` tromey at gcc dot gnu dot org
2006-05-25 10:02 ` aph at gcc dot gnu dot org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: tromey at gcc dot gnu dot org @ 2006-05-24 14:56 UTC (permalink / raw)
To: java-prs
------- Comment #1 from tromey at gcc dot gnu dot org 2006-05-24 14:56 -------
Created an attachment (id=11504)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11504&action=view)
failing class file
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27756
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug java/27756] ICE in update_aliases, at java/decl.c:192
2006-05-24 14:54 [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192 tromey at gcc dot gnu dot org
2006-05-24 14:56 ` [Bug java/27756] " tromey at gcc dot gnu dot org
@ 2006-05-25 10:02 ` aph at gcc dot gnu dot org
2006-05-25 10:12 ` aph at gcc dot gnu dot org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: aph at gcc dot gnu dot org @ 2006-05-25 10:02 UTC (permalink / raw)
To: java-prs
------- Comment #2 from aph at gcc dot gnu dot org 2006-05-25 10:02 -------
Created an attachment (id=11512)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11512&action=view)
Patch
Try this. If it works for you I'll check it in.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27756
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug java/27756] ICE in update_aliases, at java/decl.c:192
2006-05-24 14:54 [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192 tromey at gcc dot gnu dot org
2006-05-24 14:56 ` [Bug java/27756] " tromey at gcc dot gnu dot org
2006-05-25 10:02 ` aph at gcc dot gnu dot org
@ 2006-05-25 10:12 ` aph at gcc dot gnu dot org
2006-05-25 22:53 ` tromey at gcc dot gnu dot org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: aph at gcc dot gnu dot org @ 2006-05-25 10:12 UTC (permalink / raw)
To: java-prs
------- Comment #3 from aph at gcc dot gnu dot org 2006-05-25 10:12 -------
This is caused by ecj generating non-nested variable scopes.
In Method name:"seekTypesInBinaryPackage":
slot#13: name: i, type: int (pc: 254 length: 82)
slot#15: name: elementName, type: java.lang.String (pc: 240 length: 86)
So, i extends from pc 254-336, and elementName from pc 240-326.
Although gcj should correctly handle this, it must be a bug in ecj. It's quite
impossible for Java variables to have non-nested ranges.
--
aph at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27756
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug java/27756] ICE in update_aliases, at java/decl.c:192
2006-05-24 14:54 [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192 tromey at gcc dot gnu dot org
` (2 preceding siblings ...)
2006-05-25 10:12 ` aph at gcc dot gnu dot org
@ 2006-05-25 22:53 ` tromey at gcc dot gnu dot org
2006-05-26 10:20 ` aph at gcc dot gnu dot org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: tromey at gcc dot gnu dot org @ 2006-05-25 22:53 UTC (permalink / raw)
To: java-prs
------- Comment #4 from tromey at gcc dot gnu dot org 2006-05-25 22:53 -------
Thanks Andrew. With this I'm able to BC compile ecj again.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27756
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug java/27756] ICE in update_aliases, at java/decl.c:192
2006-05-24 14:54 [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192 tromey at gcc dot gnu dot org
` (3 preceding siblings ...)
2006-05-25 22:53 ` tromey at gcc dot gnu dot org
@ 2006-05-26 10:20 ` aph at gcc dot gnu dot org
2006-05-26 10:23 ` aph at gcc dot gnu dot org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: aph at gcc dot gnu dot org @ 2006-05-26 10:20 UTC (permalink / raw)
To: java-prs
------- Comment #5 from aph at gcc dot gnu dot org 2006-05-26 10:20 -------
I have found the real cause of these weird non-nested variable ranges.
It's because ecj reorganizes for loops in this way:
for (a; b; c)
{
foo;
}
becomes
goto barf;
do
{
foo;
c;
barf:
a;
if (!b)
goto x;
} forever;
x:
And this movement of the for body causes variable ranges to be discontinuous.
Duplicate variable definitions are issued.
It would be very nice if ecj could be prevented from doing this, at least for
the purpose of acting as a gcj front end.
--
aph at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2006-05-26 10:20:22
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27756
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug java/27756] ICE in update_aliases, at java/decl.c:192
2006-05-24 14:54 [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192 tromey at gcc dot gnu dot org
` (4 preceding siblings ...)
2006-05-26 10:20 ` aph at gcc dot gnu dot org
@ 2006-05-26 10:23 ` aph at gcc dot gnu dot org
2006-05-26 13:52 ` aph at gcc dot gnu dot org
2006-05-26 13:54 ` aph at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: aph at gcc dot gnu dot org @ 2006-05-26 10:23 UTC (permalink / raw)
To: java-prs
------- Comment #6 from aph at gcc dot gnu dot org 2006-05-26 10:23 -------
Err, I mean:
a;
goto barf;
do
{
foo;
c;
barf:
if (!b)
goto x;
} forever;
x:
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27756
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug java/27756] ICE in update_aliases, at java/decl.c:192
2006-05-24 14:54 [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192 tromey at gcc dot gnu dot org
` (5 preceding siblings ...)
2006-05-26 10:23 ` aph at gcc dot gnu dot org
@ 2006-05-26 13:52 ` aph at gcc dot gnu dot org
2006-05-26 13:54 ` aph at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: aph at gcc dot gnu dot org @ 2006-05-26 13:52 UTC (permalink / raw)
To: java-prs
------- Comment #7 from aph at gcc dot gnu dot org 2006-05-26 13:52 -------
Subject: Bug 27756
Author: aph
Date: Fri May 26 13:52:18 2006
New Revision: 114131
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114131
Log:
2006-05-25 Andrew Haley <aph@redhat.com>
PR java/27756
* decl.c (maybe_pushlevels): When variable ranges are non-nested
update all lifetimes, not just the first one.
Modified:
trunk/gcc/java/ChangeLog
trunk/gcc/java/decl.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27756
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug java/27756] ICE in update_aliases, at java/decl.c:192
2006-05-24 14:54 [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192 tromey at gcc dot gnu dot org
` (6 preceding siblings ...)
2006-05-26 13:52 ` aph at gcc dot gnu dot org
@ 2006-05-26 13:54 ` aph at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: aph at gcc dot gnu dot org @ 2006-05-26 13:54 UTC (permalink / raw)
To: java-prs
------- Comment #8 from aph at gcc dot gnu dot org 2006-05-26 13:54 -------
What am I supposed to write here, anyway? It's fixed because I fixed it.
--
aph at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27756
^ permalink raw reply [flat|nested] 9+ messages in thread
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2006-05-24 14:54 [Bug java/27756] New: ICE in update_aliases, at java/decl.c:192 tromey at gcc dot gnu dot org
2006-05-24 14:56 ` [Bug java/27756] " tromey at gcc dot gnu dot org
2006-05-25 10:02 ` aph at gcc dot gnu dot org
2006-05-25 10:12 ` aph at gcc dot gnu dot org
2006-05-25 22:53 ` tromey at gcc dot gnu dot org
2006-05-26 10:20 ` aph at gcc dot gnu dot org
2006-05-26 10:23 ` aph at gcc dot gnu dot org
2006-05-26 13:52 ` aph at gcc dot gnu dot org
2006-05-26 13:54 ` aph at gcc dot gnu dot org
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