Mercurial > hg > truffle
diff src/share/vm/c1/c1_Optimizer.cpp @ 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 | de6a9e811145 |
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--- a/src/share/vm/c1/c1_Optimizer.cpp Fri Oct 11 19:51:31 2013 -0700 +++ b/src/share/vm/c1/c1_Optimizer.cpp Sat Oct 12 12:12:59 2013 +0200 @@ -531,6 +531,7 @@ void do_UnsafePrefetchRead (UnsafePrefetchRead* x); void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x); void do_ProfileCall (ProfileCall* x); + void do_ProfileReturnType (ProfileReturnType* x); void do_ProfileInvoke (ProfileInvoke* x); void do_RuntimeCall (RuntimeCall* x); void do_MemBar (MemBar* x); @@ -658,6 +659,7 @@ void handle_ExceptionObject (ExceptionObject* x); void handle_Phi (Phi* x); void handle_ProfileCall (ProfileCall* x); + void handle_ProfileReturnType (ProfileReturnType* x); }; @@ -718,6 +720,7 @@ void NullCheckVisitor::do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) {} void NullCheckVisitor::do_ProfileCall (ProfileCall* x) { nce()->clear_last_explicit_null_check(); nce()->handle_ProfileCall(x); } +void NullCheckVisitor::do_ProfileReturnType (ProfileReturnType* x) { nce()->handle_ProfileReturnType(x); } void NullCheckVisitor::do_ProfileInvoke (ProfileInvoke* x) {} void NullCheckVisitor::do_RuntimeCall (RuntimeCall* x) {} void NullCheckVisitor::do_MemBar (MemBar* x) {} @@ -1142,6 +1145,10 @@ } } +void NullCheckEliminator::handle_ProfileReturnType(ProfileReturnType* x) { + x->set_needs_null_check(!set_contains(x->ret())); +} + void Optimizer::eliminate_null_checks() { ResourceMark rm;