1.1 --- a/src/share/vm/opto/machnode.hpp Thu Nov 07 11:47:11 2013 +0100
1.2 +++ b/src/share/vm/opto/machnode.hpp Thu Nov 14 19:24:59 2013 -0800
1.3 @@ -155,7 +155,15 @@
1.4 virtual void ext_format(PhaseRegAlloc *,const MachNode *node,int idx, outputStream *st) const=0;
1.5
1.6 virtual void dump_spec(outputStream *st) const; // Print per-operand info
1.7 -#endif
1.8 +
1.9 + // Check whether o is a valid oper.
1.10 + static bool notAnOper(const MachOper *o) {
1.11 + if (o == NULL) return true;
1.12 + if (((intptr_t)o & 1) != 0) return true;
1.13 + if (*(address*)o == badAddress) return true; // kill by Node::destruct
1.14 + return false;
1.15 + }
1.16 +#endif // !PRODUCT
1.17 };
1.18
1.19 //------------------------------MachNode---------------------------------------
1.20 @@ -220,6 +228,12 @@
1.21
1.22 // Emit bytes into cbuf
1.23 virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
1.24 + // Expand node after register allocation.
1.25 + // Node is replaced by several nodes in the postalloc expand phase.
1.26 + // Corresponding methods are generated for nodes if they specify
1.27 + // postalloc_expand. See block.cpp for more documentation.
1.28 + virtual bool requires_postalloc_expand() const { return false; }
1.29 + virtual void postalloc_expand(GrowableArray <Node *> *nodes, PhaseRegAlloc *ra_);
1.30 // Size of instruction in bytes
1.31 virtual uint size(PhaseRegAlloc *ra_) const;
1.32 // Helper function that computes size by emitting code
1.33 @@ -356,6 +370,9 @@
1.34 virtual uint ideal_reg() const { return Op_RegP; }
1.35 virtual uint oper_input_base() const { return 1; }
1.36
1.37 + virtual bool requires_postalloc_expand() const;
1.38 + virtual void postalloc_expand(GrowableArray <Node *> *nodes, PhaseRegAlloc *ra_);
1.39 +
1.40 virtual void emit(CodeBuffer& cbuf, PhaseRegAlloc* ra_) const;
1.41 virtual uint size(PhaseRegAlloc* ra_) const;
1.42 virtual bool pinned() const { return UseRDPCForConstantTableBase; }
