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8226699: [BACKOUT] JDK-8221734 Deoptimize with handshakes

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Reviewed-by: dholmes, rehn, dlong
This commit is contained in:
Daniel D. Daugherty 2019-06-24 22:38:17 -04:00
parent cd598622cc
commit b0933034e0
28 changed files with 175 additions and 274 deletions
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12
src/hotspot/share/runtime/vmOperations.cpp
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@ -118,6 +118,18 @@ void VM_ClearICs::doit() {
}
}
void VM_Deoptimize::doit() {
// We do not want any GCs to happen while we are in the middle of this VM operation
ResourceMark rm;
DeoptimizationMarker dm;
// Deoptimize all activations depending on marked nmethods
Deoptimization::deoptimize_dependents();
// Make the dependent methods not entrant
CodeCache::make_marked_nmethods_not_entrant();
}
void VM_MarkActiveNMethods::doit() {
NMethodSweeper::mark_active_nmethods();
}