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* optimization/6049: Optimization and Synchronization
@ 2002-03-23 16:46 Roland Hautz, roland
0 siblings, 0 replies; only message in thread
From: Roland Hautz, roland @ 2002-03-23 16:46 UTC (permalink / raw)
To: gcc-gnats
>Number: 6049
>Category: optimization
>Synopsis: Optimization and Synchronization
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: rejects-legal
>Submitter-Id: net
>Arrival-Date: Sat Mar 23 16:46:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:
>Release: 3.2 20020319 (experimental)
>Organization:
>Environment:
System: Linux isabella 2.4.10-4GB #1 Tue Sep 25 12:33:54 GMT 2001 i586 unknown
Architecture: i586
host: i586-pc-linux-gnu
build: i586-pc-linux-gnu
target: i586-pc-linux-gnu
configured with: /home/roland/gcc/configure --enable-threads=posix --enable-languages=c,c++,java
>Description:
legal code rejected by optimization stage
>How-To-Repeat:
# gcj -c Test1.java
# gcj -O -c Test1.java
Test1.java: In class `Test1':
Test1.java: In method `Test1.test()':
Test1.java:10: Wrong amount of branch edges after unconditional jump 1
Test1.java:10: verify_flow_info failed
class Test1 {
Object table;
void test() {
Object tab = table;
if (tab == null) {
synchronized(this) {
tab = table;
}
}
}
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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2002-03-23 16:46 optimization/6049: Optimization and Synchronization Roland Hautz, roland
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