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8223332: Update JVMCI

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Reviewed-by: never, dnsimon
This commit is contained in:
Vladimir Kozlov 2019-05-06 20:05:19 -07:00
parent 29a4ad9a87
commit 72f082e925
30 changed files with 1038 additions and 345 deletions
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12
src/hotspot/share/runtime/vmOperations.cpp
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@ -438,14 +438,14 @@ int VM_Exit::wait_for_threads_in_native_to_block() {
if (thr->is_Compiler_thread()) {
#if INCLUDE_JVMCI
CompilerThread* ct = (CompilerThread*) thr;
if (ct->compiler() == NULL || !ct->compiler()->is_jvmci() || !UseJVMCINativeLibrary) {
if (ct->compiler() == NULL || !ct->compiler()->is_jvmci()) {
num_active_compiler_thread++;
} else {
// When using a compiler in a JVMCI shared library, it's possible
// for one compiler thread to grab a lock in the shared library,
// enter HotSpot and go to sleep on the shutdown safepoint. Another
// JVMCI shared library compiler thread can then attempt to grab the
// lock and thus never make progress.
// A JVMCI compiler thread never accesses VM data structures
// while in _thread_in_native state so there's no need to wait
// for it and potentially add a 300 millisecond delay to VM
// shutdown.
num_active--;
}
#else
num_active_compiler_thread++;