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8141044: C1 should fold (this == null) to false

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Reviewed-by: jrose, roland
This commit is contained in:
Aleksey Shipilev 2015-11-05 13:33:18 +03:00
parent a38ea495d6
commit dfb1ed8a19
3 changed files with 9 additions and 4 deletions
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4
hotspot/src/share/vm/c1/c1_GraphBuilder.cpp
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@ -3089,7 +3089,7 @@ ValueStack* GraphBuilder::state_at_entry() {
int idx = 0;
if (!method()->is_static()) {
// we should always see the receiver
state->store_local(idx, new Local(method()->holder(), objectType, idx));
state->store_local(idx, new Local(method()->holder(), objectType, idx, true));
idx = 1;
}
@ -3101,7 +3101,7 @@ 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(type, vt, idx));
state->store_local(idx, new Local(type, vt, idx, false));
idx += type->size();
}