Mercurial > hg > truffle
diff src/share/vm/opto/graphKit.hpp @ 900:9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
Summary: developed a reexecute logic for the interpreter to reexecute the bytecode when deopt happens
Reviewed-by: kvn, never, jrose, twisti
author | cfang |
---|---|
date | Fri, 31 Jul 2009 17:12:33 -0700 |
parents | fc4be448891f |
children | 685e959d09ea |
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--- a/src/share/vm/opto/graphKit.hpp Fri Jul 31 12:04:07 2009 -0700 +++ b/src/share/vm/opto/graphKit.hpp Fri Jul 31 17:12:33 2009 -0700 @@ -763,3 +763,16 @@ BuildCutout(GraphKit* kit, Node* p, float prob, float cnt = COUNT_UNKNOWN); ~BuildCutout(); }; + +// Helper class to preserve the original _reexecute bit and _sp and restore +// them back +class PreserveReexecuteState: public StackObj { + protected: + GraphKit* _kit; + uint _sp; + JVMState::ReexecuteState _reexecute; + + public: + PreserveReexecuteState(GraphKit* kit); + ~PreserveReexecuteState(); +};