本文整理汇总了C++中methodOop::bci_from方法的典型用法代码示例。如果您正苦于以下问题：C++ methodOop::bci_from方法的具体用法？C++ methodOop::bci_from怎么用？C++ methodOop::bci_from使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类methodOop的用法示例。
在下文中一共展示了methodOop::bci_from方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: deopt_continue_after_entry
// If deoptimization happens, this function returns the point of next bytecode to continue execution
address AbstractInterpreter::deopt_continue_after_entry(methodOop method, address bcp, int callee_parameters, bool is_top_frame) {
assert(method->contains(bcp), "just checkin'");
Bytecodes::Code code = Bytecodes::java_code_at(bcp);
assert(!Interpreter::bytecode_should_reexecute(code), "should not reexecute");
int bci = method->bci_from(bcp);
int length = -1; // initial value for debugging
// compute continuation length
length = Bytecodes::length_at(bcp);
// compute result type
BasicType type = T_ILLEGAL;
switch (code) {
case Bytecodes::_invokevirtual :
case Bytecodes::_invokespecial :
case Bytecodes::_invokestatic :
case Bytecodes::_invokeinterface: {
Thread *thread = Thread::current();
ResourceMark rm(thread);
methodHandle mh(thread, method);
type = Bytecode_invoke_at(mh, bci)->result_type(thread);
// since the cache entry might not be initialized:
// (NOT needed for the old calling convension)
if (!is_top_frame) {
int index = Bytes::get_native_u2(bcp+1);
method->constants()->cache()->entry_at(index)->set_parameter_size(callee_parameters);
}
break;
}
case Bytecodes::_invokedynamic: {
Thread *thread = Thread::current();
ResourceMark rm(thread);
methodHandle mh(thread, method);
type = Bytecode_invoke_at(mh, bci)->result_type(thread);
// since the cache entry might not be initialized:
// (NOT needed for the old calling convension)
if (!is_top_frame) {
int index = Bytes::get_native_u4(bcp+1);
method->constants()->cache()->secondary_entry_at(index)->set_parameter_size(callee_parameters);
}
break;
}
case Bytecodes::_ldc :
case Bytecodes::_ldc_w : // fall through
case Bytecodes::_ldc2_w:
{
Thread *thread = Thread::current();
ResourceMark rm(thread);
methodHandle mh(thread, method);
type = Bytecode_loadconstant_at(mh, bci)->result_type();
break;
}
default:
type = Bytecodes::result_type(code);
break;
}
// return entry point for computed continuation state & bytecode length
return
is_top_frame
? Interpreter::deopt_entry (as_TosState(type), length)
: Interpreter::return_entry(as_TosState(type), length);
}示例2: non_breakpoint_code_at
Bytecodes::Code Bytecodes::non_breakpoint_code_at(address bcp, methodOop method) {
if (method == NULL) method = methodOopDesc::method_from_bcp(bcp);
return method->orig_bytecode_at(method->bci_from(bcp));
}