Mercurial > hg > truffle
diff src/share/vm/opto/chaitin.hpp @ 295:ea18057223c4
6732194: Data corruption dependent on -server/-client/-Xbatch
Summary: rematerializing nodes results in incorrect inputs
Reviewed-by: rasbold
| author | never |
|---|---|
| date | Mon, 18 Aug 2008 23:17:51 -0700 |
| parents | d1605aabd0a1 |
| children | 91263420e1c6 |
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--- a/src/share/vm/opto/chaitin.hpp Thu Aug 14 10:15:29 2008 -0700 +++ b/src/share/vm/opto/chaitin.hpp Mon Aug 18 23:17:51 2008 -0700 @@ -156,6 +156,8 @@ // Alive if non-zero, dead if zero bool alive() const { return _def != NULL; } + bool is_multidef() const { return _def == NodeSentinel; } + bool is_singledef() const { return _def != NodeSentinel; } #ifndef PRODUCT void dump( ) const; @@ -320,7 +322,8 @@ uint split_DEF( Node *def, Block *b, int loc, uint max, Node **Reachblock, Node **debug_defs, GrowableArray<uint> splits, int slidx ); uint split_USE( Node *def, Block *b, Node *use, uint useidx, uint max, bool def_down, bool cisc_sp, GrowableArray<uint> splits, int slidx ); int clone_projs( Block *b, uint idx, Node *con, Node *copy, uint &maxlrg ); - Node *split_Rematerialize( Node *def, Block *b, uint insidx, uint &maxlrg, GrowableArray<uint> splits, int slidx, uint *lrg2reach, Node **Reachblock, bool walkThru ); + Node *split_Rematerialize(Node *def, Block *b, uint insidx, uint &maxlrg, GrowableArray<uint> splits, + int slidx, uint *lrg2reach, Node **Reachblock, bool walkThru); // True if lidx is used before any real register is def'd in the block bool prompt_use( Block *b, uint lidx ); Node *get_spillcopy_wide( Node *def, Node *use, uint uidx );