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6934604: enable parts of EliminateAutoBox by default

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Resurrected autobox elimination code and enabled part of it by default.

Reviewed-by: roland, twisti
This commit is contained in:
Vladimir Kozlov 2013-05-08 15:08:01 -07:00
parent 7c367a6025
commit b4977e887a
48 changed files with 5776 additions and 501 deletions
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6
hotspot/src/share/vm/opto/parse1.cpp
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@ -390,6 +390,7 @@ Parse::Parse(JVMState* caller, ciMethod* parse_method, float expected_uses)
_expected_uses = expected_uses;
_depth = 1 + (caller->has_method() ? caller->depth() : 0);
_wrote_final = false;
_alloc_with_final = NULL;
_entry_bci = InvocationEntryBci;
_tf = NULL;
_block = NULL;
@ -723,6 +724,8 @@ void Parse::build_exits() {
// Note: iophi and memphi are not transformed until do_exits.
Node* iophi = new (C) PhiNode(region, Type::ABIO);
Node* memphi = new (C) PhiNode(region, Type::MEMORY, TypePtr::BOTTOM);
gvn().set_type_bottom(iophi);
gvn().set_type_bottom(memphi);
_exits.set_i_o(iophi);
_exits.set_all_memory(memphi);
@ -738,6 +741,7 @@ void Parse::build_exits() {
}
int ret_size = type2size[ret_type->basic_type()];
Node* ret_phi = new (C) PhiNode(region, ret_type);
gvn().set_type_bottom(ret_phi);
_exits.ensure_stack(ret_size);
assert((int)(tf()->range()->cnt() - TypeFunc::Parms) == ret_size, "good tf range");
assert(method()->return_type()->size() == ret_size, "tf agrees w/ method");
@ -917,7 +921,7 @@ void Parse::do_exits() {
// such unusual early publications. But no barrier is needed on
// exceptional returns, since they cannot publish normally.
//
_exits.insert_mem_bar(Op_MemBarRelease);
_exits.insert_mem_bar(Op_MemBarRelease, alloc_with_final());
#ifndef PRODUCT
if (PrintOpto && (Verbose || WizardMode)) {
method()->print_name();