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7125896: Eliminate nested locks

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Nested locks elimination done before lock nodes expansion by looking for outer locks of the same object.

Reviewed-by: never, twisti
This commit is contained in:
Vladimir Kozlov 2012-01-07 13:26:43 -08:00
parent f99fb50071
commit 94927c382b
17 changed files with 366 additions and 145 deletions
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3
hotspot/src/share/vm/runtime/arguments.cpp
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@ -3160,6 +3160,9 @@ jint Arguments::parse(const JavaVMInitArgs* args) {
if (!UseBiasedLocking || EmitSync != 0) {
UseOptoBiasInlining = false;
}
if (!EliminateLocks) {
EliminateNestedLocks = false;
}
#endif
if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) {