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6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86

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Use SSE4.2 and AVX2 instructions for encodeArray intrinsic.

Reviewed-by: roland
This commit is contained in:
Vladimir Kozlov 2013-01-22 15:34:16 -08:00
parent 44cdae9a57
commit 9e0c61f822
19 changed files with 663 additions and 12 deletions
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15
hotspot/src/share/vm/opto/macro.cpp
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@ -361,14 +361,21 @@ static Node *scan_mem_chain(Node *mem, int alias_idx, int offset, Node *start_me
}
// Otherwise skip it (the call updated 'mem' value).
} else if (mem->Opcode() == Op_SCMemProj) {
assert(mem->in(0)->is_LoadStore(), "sanity");
const TypePtr* atype = mem->in(0)->in(MemNode::Address)->bottom_type()->is_ptr();
mem = mem->in(0);
Node* adr = NULL;
if (mem->is_LoadStore()) {
adr = mem->in(MemNode::Address);
} else {
assert(mem->Opcode() == Op_EncodeISOArray, "sanity");
adr = mem->in(3); // Destination array
}
const TypePtr* atype = adr->bottom_type()->is_ptr();
int adr_idx = Compile::current()->get_alias_index(atype);
if (adr_idx == alias_idx) {
assert(false, "Object is not scalar replaceable if a LoadStore node access its field");
return NULL;
}
mem = mem->in(0)->in(MemNode::Memory);
mem = mem->in(MemNode::Memory);
} else {
return mem;
}
@ -445,7 +452,7 @@ Node *PhaseMacroExpand::value_from_mem_phi(Node *mem, BasicType ft, const Type *
}
values.at_put(j, val);
} else if (val->Opcode() == Op_SCMemProj) {
assert(val->in(0)->is_LoadStore(), "sanity");
assert(val->in(0)->is_LoadStore() || val->in(0)->Opcode() == Op_EncodeISOArray, "sanity");
assert(false, "Object is not scalar replaceable if a LoadStore node access its field");
return NULL;
} else {