Details
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Bug
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Resolution: Fixed
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P3
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21, 22
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b14
Backports
Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
---|---|---|---|---|---|---|
JDK-8318732 | 21.0.2 | Aleksey Shipilev | P3 | Resolved | Fixed | b05 |
Description
The following Java Fuzzer test starts to fail after JDK-8297724:
To reproduce:
$ java -XX:CompileCommand=compileonly,Test::* -XX:-TieredCompilation Test.java
$ java -Xbatch -XX:CompileCommand=compileonly,Reduced::* -XX:-TieredCompilation Reduced.java
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/opt/mach5/mesos/work_dir/slaves/cd627e65-f015-4fb1-a1d2-b6c9b8127f98-S141865/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/8a11c2a6-dc3b-42a8-a1bf-5f4afa468e45/runs/9fc53209-cfb4-45ef-bad1-2b89080d866c/workspace/open/src/hotspot/share/opto/loopTransform.cpp:3540), pid=1765465, tid=1765479
# assert(wq.size() - before == EMPTY_LOOP_SIZE) failed: expect the EMPTY_LOOP_SIZE nodes of this body if empty
#
# JRE version: Java(TM) SE Runtime Environment (22.0) (fastdebug build 22-internal-2023-08-25-1459578.christian.hagedorn.jdk)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 22-internal-2023-08-25-1459578.christian.hagedorn.jdk, mixed mode, sharing, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0x126fb18] IdealLoopTree::collect_loop_core_nodes(PhaseIdealLoop*, Unique_Node_List&) const+0x348
.............
Command Line: -XX:CompileCommand=quiet -XX:-TieredCompilation Test
.............
Stack: [0x00007f123d399000,0x00007f123d499000], sp=0x00007f123d493a40, free space=1002k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x126fb18] IdealLoopTree::collect_loop_core_nodes(PhaseIdealLoop*, Unique_Node_List&) const+0x348 (loopTransform.cpp:3540)
V [libjvm.so+0x126fbbf] IdealLoopTree::enqueue_data_nodes(PhaseIdealLoop*, Unique_Node_List&, Unique_Node_List&) const+0x1f
V [libjvm.so+0x126fe23] IdealLoopTree::process_safepoint(PhaseIdealLoop*, Unique_Node_List&, Unique_Node_List&, Node*) const+0x113
V [libjvm.so+0x1270310] IdealLoopTree::empty_loop_with_data_nodes(PhaseIdealLoop*) const [clone .part.0]+0x490
V [libjvm.so+0x12710f5] IdealLoopTree::do_remove_empty_loop(PhaseIdealLoop*) [clone .part.0]+0x9b5
V [libjvm.so+0x12a3411] PhaseIdealLoop::build_and_optimize()+0xec1
V [libjvm.so+0x9ef5d9] PhaseIdealLoop::optimize(PhaseIterGVN&, LoopOptsMode)+0x3b9
V [libjvm.so+0x9ea590] Compile::Optimize()+0x820
V [libjvm.so+0x9ee3a0] Compile::Compile(ciEnv*, ciMethod*, int, Options, DirectiveSet*)+0x1bb0
V [libjvm.so+0x84949b] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x13b
V [libjvm.so+0x9fa2b7] CompileBroker::invoke_compiler_on_method(CompileTask*)+0x977
V [libjvm.so+0x9faff8] CompileBroker::compiler_thread_loop()+0x5f8
V [libjvm.so+0xeb65cc] JavaThread::thread_main_inner()+0xcc
V [libjvm.so+0x17a09fa] Thread::call_run()+0xba
V [libjvm.so+0x149fe9a] thread_native_entry(Thread*)+0x12a
To reproduce:
$ java -XX:CompileCommand=compileonly,Test::* -XX:-TieredCompilation Test.java
$ java -Xbatch -XX:CompileCommand=compileonly,Reduced::* -XX:-TieredCompilation Reduced.java
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/opt/mach5/mesos/work_dir/slaves/cd627e65-f015-4fb1-a1d2-b6c9b8127f98-S141865/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/8a11c2a6-dc3b-42a8-a1bf-5f4afa468e45/runs/9fc53209-cfb4-45ef-bad1-2b89080d866c/workspace/open/src/hotspot/share/opto/loopTransform.cpp:3540), pid=1765465, tid=1765479
# assert(wq.size() - before == EMPTY_LOOP_SIZE) failed: expect the EMPTY_LOOP_SIZE nodes of this body if empty
#
# JRE version: Java(TM) SE Runtime Environment (22.0) (fastdebug build 22-internal-2023-08-25-1459578.christian.hagedorn.jdk)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 22-internal-2023-08-25-1459578.christian.hagedorn.jdk, mixed mode, sharing, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0x126fb18] IdealLoopTree::collect_loop_core_nodes(PhaseIdealLoop*, Unique_Node_List&) const+0x348
.............
Command Line: -XX:CompileCommand=quiet -XX:-TieredCompilation Test
.............
Stack: [0x00007f123d399000,0x00007f123d499000], sp=0x00007f123d493a40, free space=1002k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x126fb18] IdealLoopTree::collect_loop_core_nodes(PhaseIdealLoop*, Unique_Node_List&) const+0x348 (loopTransform.cpp:3540)
V [libjvm.so+0x126fbbf] IdealLoopTree::enqueue_data_nodes(PhaseIdealLoop*, Unique_Node_List&, Unique_Node_List&) const+0x1f
V [libjvm.so+0x126fe23] IdealLoopTree::process_safepoint(PhaseIdealLoop*, Unique_Node_List&, Unique_Node_List&, Node*) const+0x113
V [libjvm.so+0x1270310] IdealLoopTree::empty_loop_with_data_nodes(PhaseIdealLoop*) const [clone .part.0]+0x490
V [libjvm.so+0x12710f5] IdealLoopTree::do_remove_empty_loop(PhaseIdealLoop*) [clone .part.0]+0x9b5
V [libjvm.so+0x12a3411] PhaseIdealLoop::build_and_optimize()+0xec1
V [libjvm.so+0x9ef5d9] PhaseIdealLoop::optimize(PhaseIterGVN&, LoopOptsMode)+0x3b9
V [libjvm.so+0x9ea590] Compile::Optimize()+0x820
V [libjvm.so+0x9ee3a0] Compile::Compile(ciEnv*, ciMethod*, int, Options, DirectiveSet*)+0x1bb0
V [libjvm.so+0x84949b] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x13b
V [libjvm.so+0x9fa2b7] CompileBroker::invoke_compiler_on_method(CompileTask*)+0x977
V [libjvm.so+0x9faff8] CompileBroker::compiler_thread_loop()+0x5f8
V [libjvm.so+0xeb65cc] JavaThread::thread_main_inner()+0xcc
V [libjvm.so+0x17a09fa] Thread::call_run()+0xba
V [libjvm.so+0x149fe9a] thread_native_entry(Thread*)+0x12a
Attachments
Issue Links
- backported by
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JDK-8318732 C2: assert(wq.size() - before == EMPTY_LOOP_SIZE) failed: expect the EMPTY_LOOP_SIZE nodes of this body if empty
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- Resolved
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- relates to
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JDK-8297724 Loop strip mining prevents some empty loops from being eliminated
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- Resolved
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- links to
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Commit openjdk/jdk21u/294c19d9
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Commit openjdk/jdk/fe4f9002
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Review openjdk/jdk21u/275
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Review openjdk/jdk/15520
(1 links to)