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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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hotspot/src/share/vm/runtime/deoptimization.hpp
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@ -46,6 +46,7 @@ class Deoptimization : AllStatic {
Reason_constraint, // arbitrary runtime constraint violated
Reason_div0_check, // a null_check due to division by zero
Reason_age, // nmethod too old; tier threshold reached
Reason_predicate, // compiler generated predicate failed
Reason_LIMIT,
// Note: Keep this enum in sync. with _trap_reason_name.
Reason_RECORDED_LIMIT = Reason_unloaded // some are not recorded per bc