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6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot

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Developed a reexecute logic for the interpreter to reexecute the bytecode when deopt happens

Reviewed-by: kvn, never, jrose, twisti
This commit is contained in:
Changpeng Fang 2009-07-31 17:12:33 -07:00
parent f2ea22a547
commit ae00753bf7
29 changed files with 465 additions and 241 deletions
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14
hotspot/src/share/vm/interpreter/abstractInterpreter.hpp
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@ -122,11 +122,15 @@ class AbstractInterpreter: AllStatic {
static int size_top_interpreter_activation(methodOop method);
// Deoptimization support
static address continuation_for(methodOop method,
address bcp,
int callee_parameters,
bool is_top_frame,
bool& use_next_mdp);
// Compute the entry address for continuation after
static address deopt_continue_after_entry(methodOop method,
address bcp,
int callee_parameters,
bool is_top_frame);
// Compute the entry address for reexecution
static address deopt_reexecute_entry(methodOop method, address bcp);
// Deoptimization should reexecute this bytecode
static bool bytecode_should_reexecute(Bytecodes::Code code);
// share implementation of size_activation and layout_activation:
static int size_activation(methodOop method,