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7033154: Improve C1 arraycopy performance

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Better static analysis. Take advantage of array copy stubs.

Reviewed-by: never
This commit is contained in:
Roland Westrelin 2011-04-03 12:00:54 +02:00
parent 00eca5e982
commit f94d7776ca
13 changed files with 720 additions and 146 deletions
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4
hotspot/src/share/vm/c1/c1_GraphBuilder.cpp
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@ -2824,7 +2824,7 @@ ValueStack* GraphBuilder::state_at_entry() {
int idx = 0;
if (!method()->is_static()) {
// we should always see the receiver
state->store_local(idx, new Local(objectType, idx));
state->store_local(idx, new Local(method()->holder(), objectType, idx));
idx = 1;
}
@ -2836,7 +2836,7 @@ ValueStack* GraphBuilder::state_at_entry() {
// don't allow T_ARRAY to propagate into locals types
if (basic_type == T_ARRAY) basic_type = T_OBJECT;
ValueType* vt = as_ValueType(basic_type);
state->store_local(idx, new Local(vt, idx));
state->store_local(idx, new Local(type, vt, idx));
idx += type->size();
}