330 #endif
331 };
332
333
334 //------------------------------PhaseCFG---------------------------------------
335 // Build an array of Basic Block pointers, one per Node.
336 class PhaseCFG : public Phase {
337 private:
338 // Build a proper looking cfg. Return count of basic blocks
339 uint build_cfg();
340
341 // Perform DFS search.
342 // Setup 'vertex' as DFS to vertex mapping.
343 // Setup 'semi' as vertex to DFS mapping.
344 // Set 'parent' to DFS parent.
345 uint DFS( Tarjan *tarjan );
346
347 // Helper function to insert a node into a block
348 void schedule_node_into_block( Node *n, Block *b );
349
350 // Set the basic block for pinned Nodes
351 void schedule_pinned_nodes( VectorSet &visited );
352
353 // I'll need a few machine-specific GotoNodes. Clone from this one.
354 MachNode *_goto;
355
356 Block* insert_anti_dependences(Block* LCA, Node* load, bool verify = false);
357 void verify_anti_dependences(Block* LCA, Node* load) {
358 assert(LCA == _bbs[load->_idx], "should already be scheduled");
359 insert_anti_dependences(LCA, load, true);
360 }
361
362 public:
363 PhaseCFG( Arena *a, RootNode *r, Matcher &m );
364
365 uint _num_blocks; // Count of basic blocks
366 Block_List _blocks; // List of basic blocks
367 RootNode *_root; // Root of whole program
368 Block_Array _bbs; // Map Nodes to owning Basic Block
369 Block *_broot; // Basic block of root
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330 #endif
331 };
332
333
334 //------------------------------PhaseCFG---------------------------------------
335 // Build an array of Basic Block pointers, one per Node.
336 class PhaseCFG : public Phase {
337 private:
338 // Build a proper looking cfg. Return count of basic blocks
339 uint build_cfg();
340
341 // Perform DFS search.
342 // Setup 'vertex' as DFS to vertex mapping.
343 // Setup 'semi' as vertex to DFS mapping.
344 // Set 'parent' to DFS parent.
345 uint DFS( Tarjan *tarjan );
346
347 // Helper function to insert a node into a block
348 void schedule_node_into_block( Node *n, Block *b );
349
350 void PhaseCFG::replace_block_proj_ctrl( Node *n );
351
352 // Set the basic block for pinned Nodes
353 void schedule_pinned_nodes( VectorSet &visited );
354
355 // I'll need a few machine-specific GotoNodes. Clone from this one.
356 MachNode *_goto;
357
358 Block* insert_anti_dependences(Block* LCA, Node* load, bool verify = false);
359 void verify_anti_dependences(Block* LCA, Node* load) {
360 assert(LCA == _bbs[load->_idx], "should already be scheduled");
361 insert_anti_dependences(LCA, load, true);
362 }
363
364 public:
365 PhaseCFG( Arena *a, RootNode *r, Matcher &m );
366
367 uint _num_blocks; // Count of basic blocks
368 Block_List _blocks; // List of basic blocks
369 RootNode *_root; // Root of whole program
370 Block_Array _bbs; // Map Nodes to owning Basic Block
371 Block *_broot; // Basic block of root
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