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8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering

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Add a field to C2 LoadNode and StoreNode classes which indicates whether the load/store should do an acquire/release on platforms which support it.

Reviewed-by: kvn
This commit is contained in:
Goetz Lindenmaier 2013-11-15 11:05:32 -08:00
parent d8b9e9f681
commit 13b13f5259
17 changed files with 351 additions and 255 deletions
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13
hotspot/src/share/vm/opto/mulnode.cpp
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@ -485,7 +485,8 @@ Node *AndINode::Ideal(PhaseGVN *phase, bool can_reshape) {
Node *ldus = new (phase->C) LoadUSNode(load->in(MemNode::Control),
load->in(MemNode::Memory),
load->in(MemNode::Address),
load->adr_type());
load->adr_type(),
TypeInt::CHAR, MemNode::unordered);
ldus = phase->transform(ldus);
return new (phase->C) AndINode(ldus, phase->intcon(mask & 0xFFFF));
}
@ -496,7 +497,8 @@ Node *AndINode::Ideal(PhaseGVN *phase, bool can_reshape) {
Node* ldub = new (phase->C) LoadUBNode(load->in(MemNode::Control),
load->in(MemNode::Memory),
load->in(MemNode::Address),
load->adr_type());
load->adr_type(),
TypeInt::UBYTE, MemNode::unordered);
ldub = phase->transform(ldub);
return new (phase->C) AndINode(ldub, phase->intcon(mask));
}
@ -931,9 +933,10 @@ Node *RShiftINode::Ideal(PhaseGVN *phase, bool can_reshape) {
ld->outcnt() == 1 && ld->unique_out() == shl)
// Replace zero-extension-load with sign-extension-load
return new (phase->C) LoadSNode( ld->in(MemNode::Control),
ld->in(MemNode::Memory),
ld->in(MemNode::Address),
ld->adr_type());
ld->in(MemNode::Memory),
ld->in(MemNode::Address),
ld->adr_type(), TypeInt::SHORT,
MemNode::unordered);
}
// Check for "(byte[i] <<24)>>24" which simply sign-extends