Mercurial > hg > truffle
diff src/share/vm/c1/c1_IR.cpp @ 18041:52b4284cb496
Merge with jdk8u20-b26
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Wed, 15 Oct 2014 16:02:50 +0200 |
parents | 89152779163c 0bf37f737702 |
children |
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--- a/src/share/vm/c1/c1_IR.cpp Thu Oct 16 10:21:29 2014 +0200 +++ b/src/share/vm/c1/c1_IR.cpp Wed Oct 15 16:02:50 2014 +0200 @@ -226,8 +226,38 @@ _oop_map->set_oop(name); } +// Mirror the stack size calculation in the deopt code +// How much stack space would we need at this point in the program in +// case of deoptimization? +int CodeEmitInfo::interpreter_frame_size() const { + ValueStack* state = _stack; + int size = 0; + int callee_parameters = 0; + int callee_locals = 0; + int extra_args = state->scope()->method()->max_stack() - state->stack_size(); + while (state != NULL) { + int locks = state->locks_size(); + int temps = state->stack_size(); + bool is_top_frame = (state == _stack); + ciMethod* method = state->scope()->method(); + int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(), + temps + callee_parameters, + extra_args, + locks, + callee_parameters, + callee_locals, + is_top_frame); + size += frame_size; + + callee_parameters = method->size_of_parameters(); + callee_locals = method->max_locals(); + extra_args = 0; + state = state->caller_state(); + } + return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord; +} // Implementation of IR