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comparison src/share/vm/opto/matcher.cpp @ 7196:2aff40cb4703

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7092905: C2: Keep track of the number of dead nodes Summary: keep an (almost) accurate running count of the reachable (live) flow graph nodes. Reviewed-by: kvn, twisti, jrose, vlivanov
author bharadwaj
date Tue, 27 Nov 2012 17:24:15 -0800
parents 8e47bac5643a
children b30b3c2a0cf2
comparison
equal deleted inserted replaced
7195:2cd5e15048e6 7196:2aff40cb4703
340 grow_new_node_array(C->unique()); 340 grow_new_node_array(C->unique());
341 341
342 // Reset node counter so MachNodes start with _idx at 0 342 // Reset node counter so MachNodes start with _idx at 0
343 int nodes = C->unique(); // save value 343 int nodes = C->unique(); // save value
344 C->set_unique(0); 344 C->set_unique(0);
345 C->reset_dead_node_list();
345 346
346 // Recursively match trees from old space into new space. 347 // Recursively match trees from old space into new space.
347 // Correct leaves of new-space Nodes; they point to old-space. 348 // Correct leaves of new-space Nodes; they point to old-space.
348 _visited.Clear(); // Clear visit bits for xform call 349 _visited.Clear(); // Clear visit bits for xform call
349 C->set_cached_top_node(xform( C->top(), nodes )); 350 C->set_cached_top_node(xform( C->top(), nodes ));