assert(store->find_edge(load) != -1) failed: missing precedence edge

[Doerr, Martin]

Hi,



we are getting the assertion (see subject) in our internal tests on MacOs and s390x machines since 2018-06-27 (stacktrace: see below).

Is this a known problem?



Best regards,

Martin





# JRE version: OpenJDK Runtime Environment (11.0.1) (fastdebug build 11.0.0.1-internal+0-adhoc.JVMTESTS.jdk)

# Java VM: OpenJDK 64-Bit Server VM (fastdebug 11.0.0.1-internal+0-adhoc.JVMTESTS.jdk, compiled mode, tiered, compressed oops, g1 gc, bsd-amd64)

Stack: [0x000000014acef000,0x000000014adef000],  sp=0x000000014adeae40,  free space=1007k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.dylib+0xdfac99]  VMError::report_and_die(int, char const*, char const*, __va_list_tag*, Thread*, unsigned char*, void*, void*, char const*, int, unsigned long)+0x607
V  [libjvm.dylib+0xdfb462]  VMError::report_and_die(Thread*, void*, char const*, int, char const*, char const*, __va_list_tag*)+0x4a
V  [libjvm.dylib+0x4f2daf]  report_vm_error(char const*, int, char const*, char const*, ...)+0xd3
V  [libjvm.dylib+0x670362]  PhaseCFG::insert_anti_dependences(Block*, Node*, bool)+0xd3e
V  [libjvm.dylib+0x29b19a]  PhaseCFG::verify() const+0x166
V  [libjvm.dylib+0x4635e5]  Compile::Code_Gen()+0x157
V  [libjvm.dylib+0x460bc6]  Compile::Compile(ciEnv*, C2Compiler*, ciMethod*, int, bool, bool, bool, DirectiveSet*)+0xd24
V  [libjvm.dylib+0x463943]  Compile::Compile(ciEnv*, C2Compiler*, ciMethod*, int, bool, bool, bool, DirectiveSet*)+0x31
V  [libjvm.dylib+0x360c90]  C2Compiler::compile_method(ciEnv*, ciMethod*, int, DirectiveSet*)+0x130
V  [libjvm.dylib+0x475e71]  CompileBroker::invoke_compiler_on_method(CompileTask*)+0x65d
V  [libjvm.dylib+0x4756a9]  CompileBroker::compiler_thread_loop()+0x2f1
V  [libjvm.dylib+0xd62193]  JavaThread::thread_main_inner()+0x1ed
V  [libjvm.dylib+0xd61c70]  JavaThread::run()+0x3ee
V  [libjvm.dylib+0xba0f38]  thread_native_entry(Thread*)+0x12b
C  [libsystem_pthread.dylib+0x405a]  _pthread_body+0x83
C  [libsystem_pthread.dylib+0x3fd7]  _pthread_body+0x0
C  [libsystem_pthread.dylib+0x13ed]  thread_start+0xd

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