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6894779: Loop Predication for Loop Optimizer in C2

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Loop predication implementation

Reviewed-by: never, kvn
This commit is contained in:
Changpeng Fang 2010-01-12 14:37:35 -08:00
parent 96612c6e23
commit 815db4fcba
13 changed files with 838 additions and 30 deletions
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7
hotspot/src/share/vm/opto/parse.hpp
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@ -430,6 +430,11 @@ class Parse : public GraphKit {
}
}
// Return true if the parser should add a loop predicate
bool should_add_predicate(int target_bci);
// Insert a loop predicate into the graph
void add_predicate();
// Note: Intrinsic generation routines may be found in library_call.cpp.
// Helper function to setup Ideal Call nodes
@ -491,7 +496,7 @@ class Parse : public GraphKit {
void do_ifnull(BoolTest::mask btest, Node* c);
void do_if(BoolTest::mask btest, Node* c);
void repush_if_args();
int repush_if_args();
void adjust_map_after_if(BoolTest::mask btest, Node* c, float prob,
Block* path, Block* other_path);
IfNode* jump_if_fork_int(Node* a, Node* b, BoolTest::mask mask);