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4809552: Optimize Arrays.fill(...)

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Reviewed-by: kvn
This commit is contained in:
Tom Rodriguez 2010-08-27 17:33:49 -07:00
parent 519c627fe5
commit 08d9e03b81
17 changed files with 940 additions and 11 deletions
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6
hotspot/src/share/vm/opto/loopnode.cpp
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@ -1673,6 +1673,12 @@ void PhaseIdealLoop::build_and_optimize(bool do_split_ifs, bool do_loop_pred) {
_ltree_root->_child->loop_predication(this);
}
if (OptimizeFill && UseLoopPredicate && C->has_loops() && !C->major_progress()) {
if (do_intrinsify_fill()) {
C->set_major_progress();
}
}
// Perform iteration-splitting on inner loops. Split iterations to avoid
// range checks or one-shot null checks.