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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling

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Implement profiling for c2 jit compilation. Also enable new cppInterpreter features.

Reviewed-by: kvn
This commit is contained in:
Goetz Lindenmaier 2013-09-15 15:28:58 +02:00
parent 34c8023949
commit 0732a739b3
11 changed files with 790 additions and 103 deletions
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22
hotspot/src/share/vm/interpreter/invocationCounter.hpp
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@ -99,16 +99,24 @@ class InvocationCounter VALUE_OBJ_CLASS_SPEC {
int get_BackwardBranchLimit() const { return InterpreterBackwardBranchLimit >> number_of_noncount_bits; }
int get_ProfileLimit() const { return InterpreterProfileLimit >> number_of_noncount_bits; }
#ifdef CC_INTERP
// Test counter using scaled limits like the asm interpreter would do rather than doing
// the shifts to normalize the counter.
bool reached_InvocationLimit() const { return _counter >= (unsigned int) InterpreterInvocationLimit; }
bool reached_BackwardBranchLimit() const { return _counter >= (unsigned int) InterpreterBackwardBranchLimit; }
// Do this just like asm interpreter does for max speed
bool reached_ProfileLimit(InvocationCounter *back_edge_count) const {
return (_counter && count_mask) + back_edge_count->_counter >= (unsigned int) InterpreterProfileLimit;
// Checks sum of invocation_counter and backedge_counter as the template interpreter does.
bool reached_InvocationLimit(InvocationCounter *back_edge_count) const {
return (_counter & count_mask) + (back_edge_count->_counter & count_mask) >=
(unsigned int) InterpreterInvocationLimit;
}
bool reached_BackwardBranchLimit(InvocationCounter *back_edge_count) const {
return (_counter & count_mask) + (back_edge_count->_counter & count_mask) >=
(unsigned int) InterpreterBackwardBranchLimit;
}
// Do this just like asm interpreter does for max speed.
bool reached_ProfileLimit(InvocationCounter *back_edge_count) const {
return (_counter & count_mask) + (back_edge_count->_counter & count_mask) >=
(unsigned int) InterpreterProfileLimit;
}
#endif // CC_INTERP
void increment() { _counter += count_increment; }