Mercurial > hg > truffle
diff src/share/vm/c1/c1_Instruction.hpp @ 12882:ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
Summary: x86 interpreter and c1 type profiling for return values at calls
Reviewed-by: kvn, twisti
| author | roland |
|---|---|
| date | Sat, 12 Oct 2013 12:12:59 +0200 |
| parents | d13d7aba8c12 |
| children | 2fd0fd493045 |
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--- a/src/share/vm/c1/c1_Instruction.hpp Fri Oct 11 19:51:31 2013 -0700 +++ b/src/share/vm/c1/c1_Instruction.hpp Sat Oct 12 12:12:59 2013 +0200 @@ -107,6 +107,7 @@ class UnsafePrefetchRead; class UnsafePrefetchWrite; class ProfileCall; +class ProfileReturnType; class ProfileInvoke; class RuntimeCall; class MemBar; @@ -211,6 +212,7 @@ virtual void do_UnsafePrefetchRead (UnsafePrefetchRead* x) = 0; virtual void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) = 0; virtual void do_ProfileCall (ProfileCall* x) = 0; + virtual void do_ProfileReturnType (ProfileReturnType* x) = 0; virtual void do_ProfileInvoke (ProfileInvoke* x) = 0; virtual void do_RuntimeCall (RuntimeCall* x) = 0; virtual void do_MemBar (MemBar* x) = 0; @@ -2518,6 +2520,38 @@ } }; +LEAF(ProfileReturnType, Instruction) + private: + ciMethod* _method; + ciMethod* _callee; + int _bci_of_invoke; + Value _ret; + + public: + ProfileReturnType(ciMethod* method, int bci, ciMethod* callee, Value ret) + : Instruction(voidType) + , _method(method) + , _callee(callee) + , _bci_of_invoke(bci) + , _ret(ret) + { + set_needs_null_check(true); + // The ProfileType has side-effects and must occur precisely where located + pin(); + } + + ciMethod* method() const { return _method; } + ciMethod* callee() const { return _callee; } + int bci_of_invoke() const { return _bci_of_invoke; } + Value ret() const { return _ret; } + + virtual void input_values_do(ValueVisitor* f) { + if (_ret != NULL) { + f->visit(&_ret); + } + } +}; + // Call some C runtime function that doesn't safepoint, // optionally passing the current thread as the first argument. LEAF(RuntimeCall, Instruction)