| /* |
| * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "opto/intrinsicnode.hpp" |
| #include "opto/memnode.hpp" |
| #include "opto/phaseX.hpp" |
| |
| //============================================================================= |
| // Do not match memory edge. |
| uint StrIntrinsicNode::match_edge(uint idx) const { |
| return idx == 2 || idx == 3; |
| } |
| |
| //------------------------------Ideal------------------------------------------ |
| // Return a node which is more "ideal" than the current node. Strip out |
| // control copies |
| Node* StrIntrinsicNode::Ideal(PhaseGVN* phase, bool can_reshape) { |
| if (remove_dead_region(phase, can_reshape)) return this; |
| // Don't bother trying to transform a dead node |
| if (in(0) && in(0)->is_top()) return NULL; |
| |
| if (can_reshape) { |
| Node* mem = phase->transform(in(MemNode::Memory)); |
| // If transformed to a MergeMem, get the desired slice |
| uint alias_idx = phase->C->get_alias_index(adr_type()); |
| mem = mem->is_MergeMem() ? mem->as_MergeMem()->memory_at(alias_idx) : mem; |
| if (mem != in(MemNode::Memory)) { |
| set_req(MemNode::Memory, mem); |
| return this; |
| } |
| } |
| return NULL; |
| } |
| |
| //------------------------------Value------------------------------------------ |
| const Type* StrIntrinsicNode::Value(PhaseGVN* phase) const { |
| if (in(0) && phase->type(in(0)) == Type::TOP) return Type::TOP; |
| return bottom_type(); |
| } |
| |
| uint StrIntrinsicNode::size_of() const { return sizeof(*this); } |
| |
| //============================================================================= |
| //------------------------------Ideal------------------------------------------ |
| // Return a node which is more "ideal" than the current node. Strip out |
| // control copies |
| Node* StrCompressedCopyNode::Ideal(PhaseGVN* phase, bool can_reshape) { |
| return remove_dead_region(phase, can_reshape) ? this : NULL; |
| } |
| |
| //============================================================================= |
| //------------------------------Ideal------------------------------------------ |
| // Return a node which is more "ideal" than the current node. Strip out |
| // control copies |
| Node* StrInflatedCopyNode::Ideal(PhaseGVN* phase, bool can_reshape) { |
| return remove_dead_region(phase, can_reshape) ? this : NULL; |
| } |
| |
| //============================================================================= |
| //------------------------------match_edge------------------------------------- |
| // Do not match memory edge |
| uint EncodeISOArrayNode::match_edge(uint idx) const { |
| return idx == 2 || idx == 3; // EncodeISOArray src (Binary dst len) |
| } |
| |
| //------------------------------Ideal------------------------------------------ |
| // Return a node which is more "ideal" than the current node. Strip out |
| // control copies |
| Node* EncodeISOArrayNode::Ideal(PhaseGVN* phase, bool can_reshape) { |
| return remove_dead_region(phase, can_reshape) ? this : NULL; |
| } |
| |
| //------------------------------Value------------------------------------------ |
| const Type* EncodeISOArrayNode::Value(PhaseGVN* phase) const { |
| if (in(0) && phase->type(in(0)) == Type::TOP) return Type::TOP; |
| return bottom_type(); |
| } |
| |
| //------------------------------CopySign----------------------------------------- |
| CopySignDNode* CopySignDNode::make(PhaseGVN& gvn, Node* in1, Node* in2) { |
| return new CopySignDNode(in1, in2, gvn.makecon(TypeD::ZERO)); |
| } |
| |
| //------------------------------Signum------------------------------------------- |
| SignumDNode* SignumDNode::make(PhaseGVN& gvn, Node* in) { |
| return new SignumDNode(in, gvn.makecon(TypeD::ZERO), gvn.makecon(TypeD::ONE)); |
| } |
| |
| SignumFNode* SignumFNode::make(PhaseGVN& gvn, Node* in) { |
| return new SignumFNode(in, gvn.makecon(TypeF::ZERO), gvn.makecon(TypeF::ONE)); |
| } |
| |