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https://github.com/c64scene-ar/llvm-6502.git
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(The fix for the related failures on x86 is going to be nastier because we actually need Acquire memoperands attached to the atomic load instrs, etc.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139221 91177308-0d34-0410-b5e6-96231b3b80d8
1838 lines
63 KiB
C++
1838 lines
63 KiB
C++
//===-- llvm/CodeGen/SelectionDAGNodes.h - SelectionDAG Nodes ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the SDNode class and derived classes, which are used to
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// represent the nodes and operations present in a SelectionDAG. These nodes
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// and operations are machine code level operations, with some similarities to
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// the GCC RTL representation.
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//
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// Clients should include the SelectionDAG.h file instead of this file directly.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_SELECTIONDAGNODES_H
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#define LLVM_CODEGEN_SELECTIONDAGNODES_H
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#include "llvm/Constants.h"
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#include "llvm/Instructions.h"
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#include "llvm/ADT/FoldingSet.h"
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#include "llvm/ADT/GraphTraits.h"
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#include "llvm/ADT/ilist_node.h"
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#include "llvm/ADT/SmallPtrSet.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/CodeGen/ISDOpcodes.h"
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#include "llvm/CodeGen/ValueTypes.h"
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#include "llvm/CodeGen/MachineMemOperand.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/DataTypes.h"
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#include "llvm/Support/DebugLoc.h"
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#include <cassert>
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namespace llvm {
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class SelectionDAG;
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class GlobalValue;
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class MachineBasicBlock;
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class MachineConstantPoolValue;
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class SDNode;
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class Value;
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class MCSymbol;
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template <typename T> struct DenseMapInfo;
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template <typename T> struct simplify_type;
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template <typename T> struct ilist_traits;
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void checkForCycles(const SDNode *N);
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/// SDVTList - This represents a list of ValueType's that has been intern'd by
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/// a SelectionDAG. Instances of this simple value class are returned by
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/// SelectionDAG::getVTList(...).
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///
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struct SDVTList {
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const EVT *VTs;
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unsigned int NumVTs;
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};
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namespace ISD {
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/// Node predicates
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/// isBuildVectorAllOnes - Return true if the specified node is a
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/// BUILD_VECTOR where all of the elements are ~0 or undef.
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bool isBuildVectorAllOnes(const SDNode *N);
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/// isBuildVectorAllZeros - Return true if the specified node is a
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/// BUILD_VECTOR where all of the elements are 0 or undef.
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bool isBuildVectorAllZeros(const SDNode *N);
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/// isScalarToVector - Return true if the specified node is a
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/// ISD::SCALAR_TO_VECTOR node or a BUILD_VECTOR node where only the low
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/// element is not an undef.
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bool isScalarToVector(const SDNode *N);
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} // end llvm:ISD namespace
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//===----------------------------------------------------------------------===//
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/// SDValue - Unlike LLVM values, Selection DAG nodes may return multiple
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/// values as the result of a computation. Many nodes return multiple values,
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/// from loads (which define a token and a return value) to ADDC (which returns
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/// a result and a carry value), to calls (which may return an arbitrary number
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/// of values).
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///
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/// As such, each use of a SelectionDAG computation must indicate the node that
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/// computes it as well as which return value to use from that node. This pair
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/// of information is represented with the SDValue value type.
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///
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class SDValue {
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SDNode *Node; // The node defining the value we are using.
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unsigned ResNo; // Which return value of the node we are using.
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public:
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SDValue() : Node(0), ResNo(0) {}
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SDValue(SDNode *node, unsigned resno) : Node(node), ResNo(resno) {}
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/// get the index which selects a specific result in the SDNode
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unsigned getResNo() const { return ResNo; }
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/// get the SDNode which holds the desired result
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SDNode *getNode() const { return Node; }
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/// set the SDNode
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void setNode(SDNode *N) { Node = N; }
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inline SDNode *operator->() const { return Node; }
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bool operator==(const SDValue &O) const {
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return Node == O.Node && ResNo == O.ResNo;
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}
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bool operator!=(const SDValue &O) const {
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return !operator==(O);
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}
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bool operator<(const SDValue &O) const {
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return Node < O.Node || (Node == O.Node && ResNo < O.ResNo);
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}
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SDValue getValue(unsigned R) const {
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return SDValue(Node, R);
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}
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// isOperandOf - Return true if this node is an operand of N.
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bool isOperandOf(SDNode *N) const;
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/// getValueType - Return the ValueType of the referenced return value.
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///
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inline EVT getValueType() const;
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/// getValueSizeInBits - Returns the size of the value in bits.
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///
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unsigned getValueSizeInBits() const {
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return getValueType().getSizeInBits();
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}
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// Forwarding methods - These forward to the corresponding methods in SDNode.
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inline unsigned getOpcode() const;
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inline unsigned getNumOperands() const;
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inline const SDValue &getOperand(unsigned i) const;
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inline uint64_t getConstantOperandVal(unsigned i) const;
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inline bool isTargetMemoryOpcode() const;
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inline bool isTargetOpcode() const;
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inline bool isMachineOpcode() const;
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inline unsigned getMachineOpcode() const;
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inline const DebugLoc getDebugLoc() const;
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/// reachesChainWithoutSideEffects - Return true if this operand (which must
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/// be a chain) reaches the specified operand without crossing any
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/// side-effecting instructions. In practice, this looks through token
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/// factors and non-volatile loads. In order to remain efficient, this only
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/// looks a couple of nodes in, it does not do an exhaustive search.
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bool reachesChainWithoutSideEffects(SDValue Dest,
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unsigned Depth = 2) const;
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/// use_empty - Return true if there are no nodes using value ResNo
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/// of Node.
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///
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inline bool use_empty() const;
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/// hasOneUse - Return true if there is exactly one node using value
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/// ResNo of Node.
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///
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inline bool hasOneUse() const;
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};
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template<> struct DenseMapInfo<SDValue> {
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static inline SDValue getEmptyKey() {
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return SDValue((SDNode*)-1, -1U);
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}
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static inline SDValue getTombstoneKey() {
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return SDValue((SDNode*)-1, 0);
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}
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static unsigned getHashValue(const SDValue &Val) {
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return ((unsigned)((uintptr_t)Val.getNode() >> 4) ^
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(unsigned)((uintptr_t)Val.getNode() >> 9)) + Val.getResNo();
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}
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static bool isEqual(const SDValue &LHS, const SDValue &RHS) {
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return LHS == RHS;
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}
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};
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template <> struct isPodLike<SDValue> { static const bool value = true; };
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/// simplify_type specializations - Allow casting operators to work directly on
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/// SDValues as if they were SDNode*'s.
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template<> struct simplify_type<SDValue> {
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typedef SDNode* SimpleType;
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static SimpleType getSimplifiedValue(const SDValue &Val) {
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return static_cast<SimpleType>(Val.getNode());
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}
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};
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template<> struct simplify_type<const SDValue> {
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typedef SDNode* SimpleType;
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static SimpleType getSimplifiedValue(const SDValue &Val) {
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return static_cast<SimpleType>(Val.getNode());
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}
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};
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/// SDUse - Represents a use of a SDNode. This class holds an SDValue,
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/// which records the SDNode being used and the result number, a
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/// pointer to the SDNode using the value, and Next and Prev pointers,
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/// which link together all the uses of an SDNode.
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///
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class SDUse {
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/// Val - The value being used.
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SDValue Val;
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/// User - The user of this value.
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SDNode *User;
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/// Prev, Next - Pointers to the uses list of the SDNode referred by
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/// this operand.
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SDUse **Prev, *Next;
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SDUse(const SDUse &U); // Do not implement
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void operator=(const SDUse &U); // Do not implement
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public:
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SDUse() : Val(), User(NULL), Prev(NULL), Next(NULL) {}
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/// Normally SDUse will just implicitly convert to an SDValue that it holds.
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operator const SDValue&() const { return Val; }
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/// If implicit conversion to SDValue doesn't work, the get() method returns
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/// the SDValue.
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const SDValue &get() const { return Val; }
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/// getUser - This returns the SDNode that contains this Use.
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SDNode *getUser() { return User; }
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/// getNext - Get the next SDUse in the use list.
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SDUse *getNext() const { return Next; }
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/// getNode - Convenience function for get().getNode().
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SDNode *getNode() const { return Val.getNode(); }
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/// getResNo - Convenience function for get().getResNo().
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unsigned getResNo() const { return Val.getResNo(); }
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/// getValueType - Convenience function for get().getValueType().
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EVT getValueType() const { return Val.getValueType(); }
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/// operator== - Convenience function for get().operator==
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bool operator==(const SDValue &V) const {
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return Val == V;
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}
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/// operator!= - Convenience function for get().operator!=
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bool operator!=(const SDValue &V) const {
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return Val != V;
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}
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/// operator< - Convenience function for get().operator<
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bool operator<(const SDValue &V) const {
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return Val < V;
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}
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private:
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friend class SelectionDAG;
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friend class SDNode;
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void setUser(SDNode *p) { User = p; }
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/// set - Remove this use from its existing use list, assign it the
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/// given value, and add it to the new value's node's use list.
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inline void set(const SDValue &V);
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/// setInitial - like set, but only supports initializing a newly-allocated
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/// SDUse with a non-null value.
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inline void setInitial(const SDValue &V);
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/// setNode - like set, but only sets the Node portion of the value,
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/// leaving the ResNo portion unmodified.
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inline void setNode(SDNode *N);
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void addToList(SDUse **List) {
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Next = *List;
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if (Next) Next->Prev = &Next;
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Prev = List;
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*List = this;
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}
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void removeFromList() {
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*Prev = Next;
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if (Next) Next->Prev = Prev;
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}
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};
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/// simplify_type specializations - Allow casting operators to work directly on
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/// SDValues as if they were SDNode*'s.
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template<> struct simplify_type<SDUse> {
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typedef SDNode* SimpleType;
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static SimpleType getSimplifiedValue(const SDUse &Val) {
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return static_cast<SimpleType>(Val.getNode());
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}
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};
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template<> struct simplify_type<const SDUse> {
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typedef SDNode* SimpleType;
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static SimpleType getSimplifiedValue(const SDUse &Val) {
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return static_cast<SimpleType>(Val.getNode());
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}
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};
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/// SDNode - Represents one node in the SelectionDAG.
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///
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class SDNode : public FoldingSetNode, public ilist_node<SDNode> {
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private:
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/// NodeType - The operation that this node performs.
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///
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int16_t NodeType;
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/// OperandsNeedDelete - This is true if OperandList was new[]'d. If true,
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/// then they will be delete[]'d when the node is destroyed.
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uint16_t OperandsNeedDelete : 1;
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/// HasDebugValue - This tracks whether this node has one or more dbg_value
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/// nodes corresponding to it.
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uint16_t HasDebugValue : 1;
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protected:
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/// SubclassData - This member is defined by this class, but is not used for
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/// anything. Subclasses can use it to hold whatever state they find useful.
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/// This field is initialized to zero by the ctor.
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uint16_t SubclassData : 14;
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private:
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/// NodeId - Unique id per SDNode in the DAG.
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int NodeId;
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/// OperandList - The values that are used by this operation.
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///
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SDUse *OperandList;
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/// ValueList - The types of the values this node defines. SDNode's may
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/// define multiple values simultaneously.
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const EVT *ValueList;
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/// UseList - List of uses for this SDNode.
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SDUse *UseList;
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/// NumOperands/NumValues - The number of entries in the Operand/Value list.
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unsigned short NumOperands, NumValues;
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/// debugLoc - source line information.
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DebugLoc debugLoc;
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/// getValueTypeList - Return a pointer to the specified value type.
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static const EVT *getValueTypeList(EVT VT);
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friend class SelectionDAG;
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friend struct ilist_traits<SDNode>;
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public:
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//===--------------------------------------------------------------------===//
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// Accessors
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//
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/// getOpcode - Return the SelectionDAG opcode value for this node. For
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/// pre-isel nodes (those for which isMachineOpcode returns false), these
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/// are the opcode values in the ISD and <target>ISD namespaces. For
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/// post-isel opcodes, see getMachineOpcode.
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unsigned getOpcode() const { return (unsigned short)NodeType; }
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/// isTargetOpcode - Test if this node has a target-specific opcode (in the
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/// \<target\>ISD namespace).
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bool isTargetOpcode() const { return NodeType >= ISD::BUILTIN_OP_END; }
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/// isTargetMemoryOpcode - Test if this node has a target-specific
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/// memory-referencing opcode (in the \<target\>ISD namespace and
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/// greater than FIRST_TARGET_MEMORY_OPCODE).
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bool isTargetMemoryOpcode() const {
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return NodeType >= ISD::FIRST_TARGET_MEMORY_OPCODE;
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}
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/// isMachineOpcode - Test if this node has a post-isel opcode, directly
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/// corresponding to a MachineInstr opcode.
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bool isMachineOpcode() const { return NodeType < 0; }
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/// getMachineOpcode - This may only be called if isMachineOpcode returns
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/// true. It returns the MachineInstr opcode value that the node's opcode
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/// corresponds to.
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unsigned getMachineOpcode() const {
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assert(isMachineOpcode() && "Not a MachineInstr opcode!");
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return ~NodeType;
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}
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/// getHasDebugValue - get this bit.
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bool getHasDebugValue() const { return HasDebugValue; }
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/// setHasDebugValue - set this bit.
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void setHasDebugValue(bool b) { HasDebugValue = b; }
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/// use_empty - Return true if there are no uses of this node.
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///
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bool use_empty() const { return UseList == NULL; }
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/// hasOneUse - Return true if there is exactly one use of this node.
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///
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bool hasOneUse() const {
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return !use_empty() && llvm::next(use_begin()) == use_end();
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}
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/// use_size - Return the number of uses of this node. This method takes
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/// time proportional to the number of uses.
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///
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size_t use_size() const { return std::distance(use_begin(), use_end()); }
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/// getNodeId - Return the unique node id.
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///
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int getNodeId() const { return NodeId; }
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/// setNodeId - Set unique node id.
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void setNodeId(int Id) { NodeId = Id; }
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/// getDebugLoc - Return the source location info.
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const DebugLoc getDebugLoc() const { return debugLoc; }
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/// setDebugLoc - Set source location info. Try to avoid this, putting
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/// it in the constructor is preferable.
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void setDebugLoc(const DebugLoc dl) { debugLoc = dl; }
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/// use_iterator - This class provides iterator support for SDUse
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/// operands that use a specific SDNode.
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class use_iterator
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: public std::iterator<std::forward_iterator_tag, SDUse, ptrdiff_t> {
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SDUse *Op;
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explicit use_iterator(SDUse *op) : Op(op) {
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}
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friend class SDNode;
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public:
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typedef std::iterator<std::forward_iterator_tag,
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SDUse, ptrdiff_t>::reference reference;
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typedef std::iterator<std::forward_iterator_tag,
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SDUse, ptrdiff_t>::pointer pointer;
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use_iterator(const use_iterator &I) : Op(I.Op) {}
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use_iterator() : Op(0) {}
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bool operator==(const use_iterator &x) const {
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return Op == x.Op;
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}
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bool operator!=(const use_iterator &x) const {
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return !operator==(x);
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}
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/// atEnd - return true if this iterator is at the end of uses list.
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bool atEnd() const { return Op == 0; }
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// Iterator traversal: forward iteration only.
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use_iterator &operator++() { // Preincrement
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assert(Op && "Cannot increment end iterator!");
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Op = Op->getNext();
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return *this;
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}
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use_iterator operator++(int) { // Postincrement
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use_iterator tmp = *this; ++*this; return tmp;
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}
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/// Retrieve a pointer to the current user node.
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SDNode *operator*() const {
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assert(Op && "Cannot dereference end iterator!");
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return Op->getUser();
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}
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SDNode *operator->() const { return operator*(); }
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SDUse &getUse() const { return *Op; }
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/// getOperandNo - Retrieve the operand # of this use in its user.
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///
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unsigned getOperandNo() const {
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assert(Op && "Cannot dereference end iterator!");
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return (unsigned)(Op - Op->getUser()->OperandList);
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}
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};
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/// use_begin/use_end - Provide iteration support to walk over all uses
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/// of an SDNode.
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use_iterator use_begin() const {
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return use_iterator(UseList);
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}
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static use_iterator use_end() { return use_iterator(0); }
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/// hasNUsesOfValue - Return true if there are exactly NUSES uses of the
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/// indicated value. This method ignores uses of other values defined by this
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/// operation.
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bool hasNUsesOfValue(unsigned NUses, unsigned Value) const;
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/// hasAnyUseOfValue - Return true if there are any use of the indicated
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/// value. This method ignores uses of other values defined by this operation.
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bool hasAnyUseOfValue(unsigned Value) const;
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/// isOnlyUserOf - Return true if this node is the only use of N.
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///
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bool isOnlyUserOf(SDNode *N) const;
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/// isOperandOf - Return true if this node is an operand of N.
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///
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bool isOperandOf(SDNode *N) const;
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/// isPredecessorOf - Return true if this node is a predecessor of N.
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/// NOTE: Implemented on top of hasPredecessor and every bit as
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/// expensive. Use carefully.
|
|
bool isPredecessorOf(const SDNode *N) const { return N->hasPredecessor(this); }
|
|
|
|
/// hasPredecessor - Return true if N is a predecessor of this node.
|
|
/// N is either an operand of this node, or can be reached by recursively
|
|
/// traversing up the operands.
|
|
/// NOTE: This is an expensive method. Use it carefully.
|
|
bool hasPredecessor(const SDNode *N) const;
|
|
|
|
/// hasPredecesorHelper - Return true if N is a predecessor of this node.
|
|
/// N is either an operand of this node, or can be reached by recursively
|
|
/// traversing up the operands.
|
|
/// In this helper the Visited and worklist sets are held externally to
|
|
/// cache predecessors over multiple invocations. If you want to test for
|
|
/// multiple predecessors this method is preferable to multiple calls to
|
|
/// hasPredecessor. Be sure to clear Visited and Worklist if the DAG
|
|
/// changes.
|
|
/// NOTE: This is still very expensive. Use carefully.
|
|
bool hasPredecessorHelper(const SDNode *N,
|
|
SmallPtrSet<const SDNode *, 32> &Visited,
|
|
SmallVector<const SDNode *, 16> &Worklist) const;
|
|
|
|
/// getNumOperands - Return the number of values used by this operation.
|
|
///
|
|
unsigned getNumOperands() const { return NumOperands; }
|
|
|
|
/// getConstantOperandVal - Helper method returns the integer value of a
|
|
/// ConstantSDNode operand.
|
|
uint64_t getConstantOperandVal(unsigned Num) const;
|
|
|
|
const SDValue &getOperand(unsigned Num) const {
|
|
assert(Num < NumOperands && "Invalid child # of SDNode!");
|
|
return OperandList[Num];
|
|
}
|
|
|
|
typedef SDUse* op_iterator;
|
|
op_iterator op_begin() const { return OperandList; }
|
|
op_iterator op_end() const { return OperandList+NumOperands; }
|
|
|
|
SDVTList getVTList() const {
|
|
SDVTList X = { ValueList, NumValues };
|
|
return X;
|
|
}
|
|
|
|
/// getGluedNode - If this node has a glue operand, return the node
|
|
/// to which the glue operand points. Otherwise return NULL.
|
|
SDNode *getGluedNode() const {
|
|
if (getNumOperands() != 0 &&
|
|
getOperand(getNumOperands()-1).getValueType() == MVT::Glue)
|
|
return getOperand(getNumOperands()-1).getNode();
|
|
return 0;
|
|
}
|
|
|
|
// If this is a pseudo op, like copyfromreg, look to see if there is a
|
|
// real target node glued to it. If so, return the target node.
|
|
const SDNode *getGluedMachineNode() const {
|
|
const SDNode *FoundNode = this;
|
|
|
|
// Climb up glue edges until a machine-opcode node is found, or the
|
|
// end of the chain is reached.
|
|
while (!FoundNode->isMachineOpcode()) {
|
|
const SDNode *N = FoundNode->getGluedNode();
|
|
if (!N) break;
|
|
FoundNode = N;
|
|
}
|
|
|
|
return FoundNode;
|
|
}
|
|
|
|
/// getGluedUser - If this node has a glue value with a user, return
|
|
/// the user (there is at most one). Otherwise return NULL.
|
|
SDNode *getGluedUser() const {
|
|
for (use_iterator UI = use_begin(), UE = use_end(); UI != UE; ++UI)
|
|
if (UI.getUse().get().getValueType() == MVT::Glue)
|
|
return *UI;
|
|
return 0;
|
|
}
|
|
|
|
/// getNumValues - Return the number of values defined/returned by this
|
|
/// operator.
|
|
///
|
|
unsigned getNumValues() const { return NumValues; }
|
|
|
|
/// getValueType - Return the type of a specified result.
|
|
///
|
|
EVT getValueType(unsigned ResNo) const {
|
|
assert(ResNo < NumValues && "Illegal result number!");
|
|
return ValueList[ResNo];
|
|
}
|
|
|
|
/// getValueSizeInBits - Returns MVT::getSizeInBits(getValueType(ResNo)).
|
|
///
|
|
unsigned getValueSizeInBits(unsigned ResNo) const {
|
|
return getValueType(ResNo).getSizeInBits();
|
|
}
|
|
|
|
typedef const EVT* value_iterator;
|
|
value_iterator value_begin() const { return ValueList; }
|
|
value_iterator value_end() const { return ValueList+NumValues; }
|
|
|
|
/// getOperationName - Return the opcode of this operation for printing.
|
|
///
|
|
std::string getOperationName(const SelectionDAG *G = 0) const;
|
|
static const char* getIndexedModeName(ISD::MemIndexedMode AM);
|
|
void print_types(raw_ostream &OS, const SelectionDAG *G) const;
|
|
void print_details(raw_ostream &OS, const SelectionDAG *G) const;
|
|
void print(raw_ostream &OS, const SelectionDAG *G = 0) const;
|
|
void printr(raw_ostream &OS, const SelectionDAG *G = 0) const;
|
|
|
|
/// printrFull - Print a SelectionDAG node and all children down to
|
|
/// the leaves. The given SelectionDAG allows target-specific nodes
|
|
/// to be printed in human-readable form. Unlike printr, this will
|
|
/// print the whole DAG, including children that appear multiple
|
|
/// times.
|
|
///
|
|
void printrFull(raw_ostream &O, const SelectionDAG *G = 0) const;
|
|
|
|
/// printrWithDepth - Print a SelectionDAG node and children up to
|
|
/// depth "depth." The given SelectionDAG allows target-specific
|
|
/// nodes to be printed in human-readable form. Unlike printr, this
|
|
/// will print children that appear multiple times wherever they are
|
|
/// used.
|
|
///
|
|
void printrWithDepth(raw_ostream &O, const SelectionDAG *G = 0,
|
|
unsigned depth = 100) const;
|
|
|
|
|
|
/// dump - Dump this node, for debugging.
|
|
void dump() const;
|
|
|
|
/// dumpr - Dump (recursively) this node and its use-def subgraph.
|
|
void dumpr() const;
|
|
|
|
/// dump - Dump this node, for debugging.
|
|
/// The given SelectionDAG allows target-specific nodes to be printed
|
|
/// in human-readable form.
|
|
void dump(const SelectionDAG *G) const;
|
|
|
|
/// dumpr - Dump (recursively) this node and its use-def subgraph.
|
|
/// The given SelectionDAG allows target-specific nodes to be printed
|
|
/// in human-readable form.
|
|
void dumpr(const SelectionDAG *G) const;
|
|
|
|
/// dumprFull - printrFull to dbgs(). The given SelectionDAG allows
|
|
/// target-specific nodes to be printed in human-readable form.
|
|
/// Unlike dumpr, this will print the whole DAG, including children
|
|
/// that appear multiple times.
|
|
///
|
|
void dumprFull(const SelectionDAG *G = 0) const;
|
|
|
|
/// dumprWithDepth - printrWithDepth to dbgs(). The given
|
|
/// SelectionDAG allows target-specific nodes to be printed in
|
|
/// human-readable form. Unlike dumpr, this will print children
|
|
/// that appear multiple times wherever they are used.
|
|
///
|
|
void dumprWithDepth(const SelectionDAG *G = 0, unsigned depth = 100) const;
|
|
|
|
|
|
static bool classof(const SDNode *) { return true; }
|
|
|
|
/// Profile - Gather unique data for the node.
|
|
///
|
|
void Profile(FoldingSetNodeID &ID) const;
|
|
|
|
/// addUse - This method should only be used by the SDUse class.
|
|
///
|
|
void addUse(SDUse &U) { U.addToList(&UseList); }
|
|
|
|
protected:
|
|
static SDVTList getSDVTList(EVT VT) {
|
|
SDVTList Ret = { getValueTypeList(VT), 1 };
|
|
return Ret;
|
|
}
|
|
|
|
SDNode(unsigned Opc, const DebugLoc dl, SDVTList VTs, const SDValue *Ops,
|
|
unsigned NumOps)
|
|
: NodeType(Opc), OperandsNeedDelete(true), HasDebugValue(false),
|
|
SubclassData(0), NodeId(-1),
|
|
OperandList(NumOps ? new SDUse[NumOps] : 0),
|
|
ValueList(VTs.VTs), UseList(NULL),
|
|
NumOperands(NumOps), NumValues(VTs.NumVTs),
|
|
debugLoc(dl) {
|
|
for (unsigned i = 0; i != NumOps; ++i) {
|
|
OperandList[i].setUser(this);
|
|
OperandList[i].setInitial(Ops[i]);
|
|
}
|
|
checkForCycles(this);
|
|
}
|
|
|
|
/// This constructor adds no operands itself; operands can be
|
|
/// set later with InitOperands.
|
|
SDNode(unsigned Opc, const DebugLoc dl, SDVTList VTs)
|
|
: NodeType(Opc), OperandsNeedDelete(false), HasDebugValue(false),
|
|
SubclassData(0), NodeId(-1), OperandList(0), ValueList(VTs.VTs),
|
|
UseList(NULL), NumOperands(0), NumValues(VTs.NumVTs),
|
|
debugLoc(dl) {}
|
|
|
|
/// InitOperands - Initialize the operands list of this with 1 operand.
|
|
void InitOperands(SDUse *Ops, const SDValue &Op0) {
|
|
Ops[0].setUser(this);
|
|
Ops[0].setInitial(Op0);
|
|
NumOperands = 1;
|
|
OperandList = Ops;
|
|
checkForCycles(this);
|
|
}
|
|
|
|
/// InitOperands - Initialize the operands list of this with 2 operands.
|
|
void InitOperands(SDUse *Ops, const SDValue &Op0, const SDValue &Op1) {
|
|
Ops[0].setUser(this);
|
|
Ops[0].setInitial(Op0);
|
|
Ops[1].setUser(this);
|
|
Ops[1].setInitial(Op1);
|
|
NumOperands = 2;
|
|
OperandList = Ops;
|
|
checkForCycles(this);
|
|
}
|
|
|
|
/// InitOperands - Initialize the operands list of this with 3 operands.
|
|
void InitOperands(SDUse *Ops, const SDValue &Op0, const SDValue &Op1,
|
|
const SDValue &Op2) {
|
|
Ops[0].setUser(this);
|
|
Ops[0].setInitial(Op0);
|
|
Ops[1].setUser(this);
|
|
Ops[1].setInitial(Op1);
|
|
Ops[2].setUser(this);
|
|
Ops[2].setInitial(Op2);
|
|
NumOperands = 3;
|
|
OperandList = Ops;
|
|
checkForCycles(this);
|
|
}
|
|
|
|
/// InitOperands - Initialize the operands list of this with 4 operands.
|
|
void InitOperands(SDUse *Ops, const SDValue &Op0, const SDValue &Op1,
|
|
const SDValue &Op2, const SDValue &Op3) {
|
|
Ops[0].setUser(this);
|
|
Ops[0].setInitial(Op0);
|
|
Ops[1].setUser(this);
|
|
Ops[1].setInitial(Op1);
|
|
Ops[2].setUser(this);
|
|
Ops[2].setInitial(Op2);
|
|
Ops[3].setUser(this);
|
|
Ops[3].setInitial(Op3);
|
|
NumOperands = 4;
|
|
OperandList = Ops;
|
|
checkForCycles(this);
|
|
}
|
|
|
|
/// InitOperands - Initialize the operands list of this with N operands.
|
|
void InitOperands(SDUse *Ops, const SDValue *Vals, unsigned N) {
|
|
for (unsigned i = 0; i != N; ++i) {
|
|
Ops[i].setUser(this);
|
|
Ops[i].setInitial(Vals[i]);
|
|
}
|
|
NumOperands = N;
|
|
OperandList = Ops;
|
|
checkForCycles(this);
|
|
}
|
|
|
|
/// DropOperands - Release the operands and set this node to have
|
|
/// zero operands.
|
|
void DropOperands();
|
|
};
|
|
|
|
|
|
// Define inline functions from the SDValue class.
|
|
|
|
inline unsigned SDValue::getOpcode() const {
|
|
return Node->getOpcode();
|
|
}
|
|
inline EVT SDValue::getValueType() const {
|
|
return Node->getValueType(ResNo);
|
|
}
|
|
inline unsigned SDValue::getNumOperands() const {
|
|
return Node->getNumOperands();
|
|
}
|
|
inline const SDValue &SDValue::getOperand(unsigned i) const {
|
|
return Node->getOperand(i);
|
|
}
|
|
inline uint64_t SDValue::getConstantOperandVal(unsigned i) const {
|
|
return Node->getConstantOperandVal(i);
|
|
}
|
|
inline bool SDValue::isTargetOpcode() const {
|
|
return Node->isTargetOpcode();
|
|
}
|
|
inline bool SDValue::isTargetMemoryOpcode() const {
|
|
return Node->isTargetMemoryOpcode();
|
|
}
|
|
inline bool SDValue::isMachineOpcode() const {
|
|
return Node->isMachineOpcode();
|
|
}
|
|
inline unsigned SDValue::getMachineOpcode() const {
|
|
return Node->getMachineOpcode();
|
|
}
|
|
inline bool SDValue::use_empty() const {
|
|
return !Node->hasAnyUseOfValue(ResNo);
|
|
}
|
|
inline bool SDValue::hasOneUse() const {
|
|
return Node->hasNUsesOfValue(1, ResNo);
|
|
}
|
|
inline const DebugLoc SDValue::getDebugLoc() const {
|
|
return Node->getDebugLoc();
|
|
}
|
|
|
|
// Define inline functions from the SDUse class.
|
|
|
|
inline void SDUse::set(const SDValue &V) {
|
|
if (Val.getNode()) removeFromList();
|
|
Val = V;
|
|
if (V.getNode()) V.getNode()->addUse(*this);
|
|
}
|
|
|
|
inline void SDUse::setInitial(const SDValue &V) {
|
|
Val = V;
|
|
V.getNode()->addUse(*this);
|
|
}
|
|
|
|
inline void SDUse::setNode(SDNode *N) {
|
|
if (Val.getNode()) removeFromList();
|
|
Val.setNode(N);
|
|
if (N) N->addUse(*this);
|
|
}
|
|
|
|
/// UnarySDNode - This class is used for single-operand SDNodes. This is solely
|
|
/// to allow co-allocation of node operands with the node itself.
|
|
class UnarySDNode : public SDNode {
|
|
SDUse Op;
|
|
public:
|
|
UnarySDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, SDValue X)
|
|
: SDNode(Opc, dl, VTs) {
|
|
InitOperands(&Op, X);
|
|
}
|
|
};
|
|
|
|
/// BinarySDNode - This class is used for two-operand SDNodes. This is solely
|
|
/// to allow co-allocation of node operands with the node itself.
|
|
class BinarySDNode : public SDNode {
|
|
SDUse Ops[2];
|
|
public:
|
|
BinarySDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, SDValue X, SDValue Y)
|
|
: SDNode(Opc, dl, VTs) {
|
|
InitOperands(Ops, X, Y);
|
|
}
|
|
};
|
|
|
|
/// TernarySDNode - This class is used for three-operand SDNodes. This is solely
|
|
/// to allow co-allocation of node operands with the node itself.
|
|
class TernarySDNode : public SDNode {
|
|
SDUse Ops[3];
|
|
public:
|
|
TernarySDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, SDValue X, SDValue Y,
|
|
SDValue Z)
|
|
: SDNode(Opc, dl, VTs) {
|
|
InitOperands(Ops, X, Y, Z);
|
|
}
|
|
};
|
|
|
|
|
|
/// HandleSDNode - This class is used to form a handle around another node that
|
|
/// is persistent and is updated across invocations of replaceAllUsesWith on its
|
|
/// operand. This node should be directly created by end-users and not added to
|
|
/// the AllNodes list.
|
|
class HandleSDNode : public SDNode {
|
|
SDUse Op;
|
|
public:
|
|
// FIXME: Remove the "noinline" attribute once <rdar://problem/5852746> is
|
|
// fixed.
|
|
#if __GNUC__==4 && __GNUC_MINOR__==2 && defined(__APPLE__) && !defined(__llvm__)
|
|
explicit __attribute__((__noinline__)) HandleSDNode(SDValue X)
|
|
#else
|
|
explicit HandleSDNode(SDValue X)
|
|
#endif
|
|
: SDNode(ISD::HANDLENODE, DebugLoc(), getSDVTList(MVT::Other)) {
|
|
InitOperands(&Op, X);
|
|
}
|
|
~HandleSDNode();
|
|
const SDValue &getValue() const { return Op; }
|
|
};
|
|
|
|
/// Abstact virtual class for operations for memory operations
|
|
class MemSDNode : public SDNode {
|
|
private:
|
|
// MemoryVT - VT of in-memory value.
|
|
EVT MemoryVT;
|
|
|
|
protected:
|
|
/// MMO - Memory reference information.
|
|
MachineMemOperand *MMO;
|
|
|
|
public:
|
|
MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, EVT MemoryVT,
|
|
MachineMemOperand *MMO);
|
|
|
|
MemSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs, const SDValue *Ops,
|
|
unsigned NumOps, EVT MemoryVT, MachineMemOperand *MMO);
|
|
|
|
bool readMem() const { return MMO->isLoad(); }
|
|
bool writeMem() const { return MMO->isStore(); }
|
|
|
|
/// Returns alignment and volatility of the memory access
|
|
unsigned getOriginalAlignment() const {
|
|
return MMO->getBaseAlignment();
|
|
}
|
|
unsigned getAlignment() const {
|
|
return MMO->getAlignment();
|
|
}
|
|
|
|
/// getRawSubclassData - Return the SubclassData value, which contains an
|
|
/// encoding of the volatile flag, as well as bits used by subclasses. This
|
|
/// function should only be used to compute a FoldingSetNodeID value.
|
|
unsigned getRawSubclassData() const {
|
|
return SubclassData;
|
|
}
|
|
|
|
// We access subclass data here so that we can check consistency
|
|
// with MachineMemOperand information.
|
|
bool isVolatile() const { return (SubclassData >> 5) & 1; }
|
|
bool isNonTemporal() const { return (SubclassData >> 6) & 1; }
|
|
|
|
AtomicOrdering getOrdering() const {
|
|
return AtomicOrdering((SubclassData >> 7) & 15);
|
|
}
|
|
SynchronizationScope getSynchScope() const {
|
|
return SynchronizationScope((SubclassData >> 11) & 1);
|
|
}
|
|
|
|
/// Returns the SrcValue and offset that describes the location of the access
|
|
const Value *getSrcValue() const { return MMO->getValue(); }
|
|
int64_t getSrcValueOffset() const { return MMO->getOffset(); }
|
|
|
|
/// Returns the TBAAInfo that describes the dereference.
|
|
const MDNode *getTBAAInfo() const { return MMO->getTBAAInfo(); }
|
|
|
|
/// getMemoryVT - Return the type of the in-memory value.
|
|
EVT getMemoryVT() const { return MemoryVT; }
|
|
|
|
/// getMemOperand - Return a MachineMemOperand object describing the memory
|
|
/// reference performed by operation.
|
|
MachineMemOperand *getMemOperand() const { return MMO; }
|
|
|
|
const MachinePointerInfo &getPointerInfo() const {
|
|
return MMO->getPointerInfo();
|
|
}
|
|
|
|
/// refineAlignment - Update this MemSDNode's MachineMemOperand information
|
|
/// to reflect the alignment of NewMMO, if it has a greater alignment.
|
|
/// This must only be used when the new alignment applies to all users of
|
|
/// this MachineMemOperand.
|
|
void refineAlignment(const MachineMemOperand *NewMMO) {
|
|
MMO->refineAlignment(NewMMO);
|
|
}
|
|
|
|
const SDValue &getChain() const { return getOperand(0); }
|
|
const SDValue &getBasePtr() const {
|
|
return getOperand(getOpcode() == ISD::STORE ? 2 : 1);
|
|
}
|
|
|
|
// Methods to support isa and dyn_cast
|
|
static bool classof(const MemSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
// For some targets, we lower some target intrinsics to a MemIntrinsicNode
|
|
// with either an intrinsic or a target opcode.
|
|
return N->getOpcode() == ISD::LOAD ||
|
|
N->getOpcode() == ISD::STORE ||
|
|
N->getOpcode() == ISD::PREFETCH ||
|
|
N->getOpcode() == ISD::ATOMIC_CMP_SWAP ||
|
|
N->getOpcode() == ISD::ATOMIC_SWAP ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_ADD ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_SUB ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_AND ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_OR ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_XOR ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_NAND ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_MIN ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_MAX ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_UMIN ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_UMAX ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD ||
|
|
N->getOpcode() == ISD::ATOMIC_STORE ||
|
|
N->isTargetMemoryOpcode();
|
|
}
|
|
};
|
|
|
|
/// AtomicSDNode - A SDNode reprenting atomic operations.
|
|
///
|
|
class AtomicSDNode : public MemSDNode {
|
|
SDUse Ops[4];
|
|
|
|
void InitAtomic(AtomicOrdering Ordering, SynchronizationScope SynchScope) {
|
|
// This must match encodeMemSDNodeFlags() in SelectionDAG.cpp.
|
|
assert((Ordering & 15) == Ordering &&
|
|
"Ordering may not require more than 4 bits!");
|
|
assert((SynchScope & 1) == SynchScope &&
|
|
"SynchScope may not require more than 1 bit!");
|
|
SubclassData |= Ordering << 7;
|
|
SubclassData |= SynchScope << 11;
|
|
assert(getOrdering() == Ordering && "Ordering encoding error!");
|
|
assert(getSynchScope() == SynchScope && "Synch-scope encoding error!");
|
|
|
|
assert((readMem() || getOrdering() <= Monotonic) &&
|
|
"Acquire/Release MachineMemOperand must be a load!");
|
|
assert((writeMem() || getOrdering() <= Monotonic) &&
|
|
"Acquire/Release MachineMemOperand must be a store!");
|
|
}
|
|
|
|
public:
|
|
// Opc: opcode for atomic
|
|
// VTL: value type list
|
|
// Chain: memory chain for operaand
|
|
// Ptr: address to update as a SDValue
|
|
// Cmp: compare value
|
|
// Swp: swap value
|
|
// SrcVal: address to update as a Value (used for MemOperand)
|
|
// Align: alignment of memory
|
|
AtomicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTL, EVT MemVT,
|
|
SDValue Chain, SDValue Ptr,
|
|
SDValue Cmp, SDValue Swp, MachineMemOperand *MMO,
|
|
AtomicOrdering Ordering, SynchronizationScope SynchScope)
|
|
: MemSDNode(Opc, dl, VTL, MemVT, MMO) {
|
|
InitAtomic(Ordering, SynchScope);
|
|
InitOperands(Ops, Chain, Ptr, Cmp, Swp);
|
|
}
|
|
AtomicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTL, EVT MemVT,
|
|
SDValue Chain, SDValue Ptr,
|
|
SDValue Val, MachineMemOperand *MMO,
|
|
AtomicOrdering Ordering, SynchronizationScope SynchScope)
|
|
: MemSDNode(Opc, dl, VTL, MemVT, MMO) {
|
|
InitAtomic(Ordering, SynchScope);
|
|
InitOperands(Ops, Chain, Ptr, Val);
|
|
}
|
|
AtomicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTL, EVT MemVT,
|
|
SDValue Chain, SDValue Ptr,
|
|
MachineMemOperand *MMO,
|
|
AtomicOrdering Ordering, SynchronizationScope SynchScope)
|
|
: MemSDNode(Opc, dl, VTL, MemVT, MMO) {
|
|
InitAtomic(Ordering, SynchScope);
|
|
InitOperands(Ops, Chain, Ptr);
|
|
}
|
|
|
|
const SDValue &getBasePtr() const { return getOperand(1); }
|
|
const SDValue &getVal() const { return getOperand(2); }
|
|
|
|
bool isCompareAndSwap() const {
|
|
unsigned Op = getOpcode();
|
|
return Op == ISD::ATOMIC_CMP_SWAP;
|
|
}
|
|
|
|
// Methods to support isa and dyn_cast
|
|
static bool classof(const AtomicSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::ATOMIC_CMP_SWAP ||
|
|
N->getOpcode() == ISD::ATOMIC_SWAP ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_ADD ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_SUB ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_AND ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_OR ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_XOR ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_NAND ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_MIN ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_MAX ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_UMIN ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD_UMAX ||
|
|
N->getOpcode() == ISD::ATOMIC_LOAD ||
|
|
N->getOpcode() == ISD::ATOMIC_STORE;
|
|
}
|
|
};
|
|
|
|
/// MemIntrinsicSDNode - This SDNode is used for target intrinsics that touch
|
|
/// memory and need an associated MachineMemOperand. Its opcode may be
|
|
/// INTRINSIC_VOID, INTRINSIC_W_CHAIN, PREFETCH, or a target-specific opcode
|
|
/// with a value not less than FIRST_TARGET_MEMORY_OPCODE.
|
|
class MemIntrinsicSDNode : public MemSDNode {
|
|
public:
|
|
MemIntrinsicSDNode(unsigned Opc, DebugLoc dl, SDVTList VTs,
|
|
const SDValue *Ops, unsigned NumOps,
|
|
EVT MemoryVT, MachineMemOperand *MMO)
|
|
: MemSDNode(Opc, dl, VTs, Ops, NumOps, MemoryVT, MMO) {
|
|
}
|
|
|
|
// Methods to support isa and dyn_cast
|
|
static bool classof(const MemIntrinsicSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
// We lower some target intrinsics to their target opcode
|
|
// early a node with a target opcode can be of this class
|
|
return N->getOpcode() == ISD::INTRINSIC_W_CHAIN ||
|
|
N->getOpcode() == ISD::INTRINSIC_VOID ||
|
|
N->getOpcode() == ISD::PREFETCH ||
|
|
N->isTargetMemoryOpcode();
|
|
}
|
|
};
|
|
|
|
/// ShuffleVectorSDNode - This SDNode is used to implement the code generator
|
|
/// support for the llvm IR shufflevector instruction. It combines elements
|
|
/// from two input vectors into a new input vector, with the selection and
|
|
/// ordering of elements determined by an array of integers, referred to as
|
|
/// the shuffle mask. For input vectors of width N, mask indices of 0..N-1
|
|
/// refer to elements from the LHS input, and indices from N to 2N-1 the RHS.
|
|
/// An index of -1 is treated as undef, such that the code generator may put
|
|
/// any value in the corresponding element of the result.
|
|
class ShuffleVectorSDNode : public SDNode {
|
|
SDUse Ops[2];
|
|
|
|
// The memory for Mask is owned by the SelectionDAG's OperandAllocator, and
|
|
// is freed when the SelectionDAG object is destroyed.
|
|
const int *Mask;
|
|
protected:
|
|
friend class SelectionDAG;
|
|
ShuffleVectorSDNode(EVT VT, DebugLoc dl, SDValue N1, SDValue N2,
|
|
const int *M)
|
|
: SDNode(ISD::VECTOR_SHUFFLE, dl, getSDVTList(VT)), Mask(M) {
|
|
InitOperands(Ops, N1, N2);
|
|
}
|
|
public:
|
|
|
|
void getMask(SmallVectorImpl<int> &M) const {
|
|
EVT VT = getValueType(0);
|
|
M.clear();
|
|
for (unsigned i = 0, e = VT.getVectorNumElements(); i != e; ++i)
|
|
M.push_back(Mask[i]);
|
|
}
|
|
int getMaskElt(unsigned Idx) const {
|
|
assert(Idx < getValueType(0).getVectorNumElements() && "Idx out of range!");
|
|
return Mask[Idx];
|
|
}
|
|
|
|
bool isSplat() const { return isSplatMask(Mask, getValueType(0)); }
|
|
int getSplatIndex() const {
|
|
assert(isSplat() && "Cannot get splat index for non-splat!");
|
|
EVT VT = getValueType(0);
|
|
for (unsigned i = 0, e = VT.getVectorNumElements(); i != e; ++i) {
|
|
if (Mask[i] != -1)
|
|
return Mask[i];
|
|
}
|
|
return -1;
|
|
}
|
|
static bool isSplatMask(const int *Mask, EVT VT);
|
|
|
|
static bool classof(const ShuffleVectorSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::VECTOR_SHUFFLE;
|
|
}
|
|
};
|
|
|
|
class ConstantSDNode : public SDNode {
|
|
const ConstantInt *Value;
|
|
friend class SelectionDAG;
|
|
ConstantSDNode(bool isTarget, const ConstantInt *val, EVT VT)
|
|
: SDNode(isTarget ? ISD::TargetConstant : ISD::Constant,
|
|
DebugLoc(), getSDVTList(VT)), Value(val) {
|
|
}
|
|
public:
|
|
|
|
const ConstantInt *getConstantIntValue() const { return Value; }
|
|
const APInt &getAPIntValue() const { return Value->getValue(); }
|
|
uint64_t getZExtValue() const { return Value->getZExtValue(); }
|
|
int64_t getSExtValue() const { return Value->getSExtValue(); }
|
|
|
|
bool isOne() const { return Value->isOne(); }
|
|
bool isNullValue() const { return Value->isNullValue(); }
|
|
bool isAllOnesValue() const { return Value->isAllOnesValue(); }
|
|
|
|
static bool classof(const ConstantSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::Constant ||
|
|
N->getOpcode() == ISD::TargetConstant;
|
|
}
|
|
};
|
|
|
|
class ConstantFPSDNode : public SDNode {
|
|
const ConstantFP *Value;
|
|
friend class SelectionDAG;
|
|
ConstantFPSDNode(bool isTarget, const ConstantFP *val, EVT VT)
|
|
: SDNode(isTarget ? ISD::TargetConstantFP : ISD::ConstantFP,
|
|
DebugLoc(), getSDVTList(VT)), Value(val) {
|
|
}
|
|
public:
|
|
|
|
const APFloat& getValueAPF() const { return Value->getValueAPF(); }
|
|
const ConstantFP *getConstantFPValue() const { return Value; }
|
|
|
|
/// isZero - Return true if the value is positive or negative zero.
|
|
bool isZero() const { return Value->isZero(); }
|
|
|
|
/// isNaN - Return true if the value is a NaN.
|
|
bool isNaN() const { return Value->isNaN(); }
|
|
|
|
/// isExactlyValue - We don't rely on operator== working on double values, as
|
|
/// it returns true for things that are clearly not equal, like -0.0 and 0.0.
|
|
/// As such, this method can be used to do an exact bit-for-bit comparison of
|
|
/// two floating point values.
|
|
|
|
/// We leave the version with the double argument here because it's just so
|
|
/// convenient to write "2.0" and the like. Without this function we'd
|
|
/// have to duplicate its logic everywhere it's called.
|
|
bool isExactlyValue(double V) const {
|
|
bool ignored;
|
|
// convert is not supported on this type
|
|
if (&Value->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble)
|
|
return false;
|
|
APFloat Tmp(V);
|
|
Tmp.convert(Value->getValueAPF().getSemantics(),
|
|
APFloat::rmNearestTiesToEven, &ignored);
|
|
return isExactlyValue(Tmp);
|
|
}
|
|
bool isExactlyValue(const APFloat& V) const;
|
|
|
|
static bool isValueValidForType(EVT VT, const APFloat& Val);
|
|
|
|
static bool classof(const ConstantFPSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::ConstantFP ||
|
|
N->getOpcode() == ISD::TargetConstantFP;
|
|
}
|
|
};
|
|
|
|
class GlobalAddressSDNode : public SDNode {
|
|
const GlobalValue *TheGlobal;
|
|
int64_t Offset;
|
|
unsigned char TargetFlags;
|
|
friend class SelectionDAG;
|
|
GlobalAddressSDNode(unsigned Opc, DebugLoc DL, const GlobalValue *GA, EVT VT,
|
|
int64_t o, unsigned char TargetFlags);
|
|
public:
|
|
|
|
const GlobalValue *getGlobal() const { return TheGlobal; }
|
|
int64_t getOffset() const { return Offset; }
|
|
unsigned char getTargetFlags() const { return TargetFlags; }
|
|
// Return the address space this GlobalAddress belongs to.
|
|
unsigned getAddressSpace() const;
|
|
|
|
static bool classof(const GlobalAddressSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::GlobalAddress ||
|
|
N->getOpcode() == ISD::TargetGlobalAddress ||
|
|
N->getOpcode() == ISD::GlobalTLSAddress ||
|
|
N->getOpcode() == ISD::TargetGlobalTLSAddress;
|
|
}
|
|
};
|
|
|
|
class FrameIndexSDNode : public SDNode {
|
|
int FI;
|
|
friend class SelectionDAG;
|
|
FrameIndexSDNode(int fi, EVT VT, bool isTarg)
|
|
: SDNode(isTarg ? ISD::TargetFrameIndex : ISD::FrameIndex,
|
|
DebugLoc(), getSDVTList(VT)), FI(fi) {
|
|
}
|
|
public:
|
|
|
|
int getIndex() const { return FI; }
|
|
|
|
static bool classof(const FrameIndexSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::FrameIndex ||
|
|
N->getOpcode() == ISD::TargetFrameIndex;
|
|
}
|
|
};
|
|
|
|
class JumpTableSDNode : public SDNode {
|
|
int JTI;
|
|
unsigned char TargetFlags;
|
|
friend class SelectionDAG;
|
|
JumpTableSDNode(int jti, EVT VT, bool isTarg, unsigned char TF)
|
|
: SDNode(isTarg ? ISD::TargetJumpTable : ISD::JumpTable,
|
|
DebugLoc(), getSDVTList(VT)), JTI(jti), TargetFlags(TF) {
|
|
}
|
|
public:
|
|
|
|
int getIndex() const { return JTI; }
|
|
unsigned char getTargetFlags() const { return TargetFlags; }
|
|
|
|
static bool classof(const JumpTableSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::JumpTable ||
|
|
N->getOpcode() == ISD::TargetJumpTable;
|
|
}
|
|
};
|
|
|
|
class ConstantPoolSDNode : public SDNode {
|
|
union {
|
|
const Constant *ConstVal;
|
|
MachineConstantPoolValue *MachineCPVal;
|
|
} Val;
|
|
int Offset; // It's a MachineConstantPoolValue if top bit is set.
|
|
unsigned Alignment; // Minimum alignment requirement of CP (not log2 value).
|
|
unsigned char TargetFlags;
|
|
friend class SelectionDAG;
|
|
ConstantPoolSDNode(bool isTarget, const Constant *c, EVT VT, int o,
|
|
unsigned Align, unsigned char TF)
|
|
: SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
|
|
DebugLoc(),
|
|
getSDVTList(VT)), Offset(o), Alignment(Align), TargetFlags(TF) {
|
|
assert((int)Offset >= 0 && "Offset is too large");
|
|
Val.ConstVal = c;
|
|
}
|
|
ConstantPoolSDNode(bool isTarget, MachineConstantPoolValue *v,
|
|
EVT VT, int o, unsigned Align, unsigned char TF)
|
|
: SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool,
|
|
DebugLoc(),
|
|
getSDVTList(VT)), Offset(o), Alignment(Align), TargetFlags(TF) {
|
|
assert((int)Offset >= 0 && "Offset is too large");
|
|
Val.MachineCPVal = v;
|
|
Offset |= 1 << (sizeof(unsigned)*CHAR_BIT-1);
|
|
}
|
|
public:
|
|
|
|
|
|
bool isMachineConstantPoolEntry() const {
|
|
return (int)Offset < 0;
|
|
}
|
|
|
|
const Constant *getConstVal() const {
|
|
assert(!isMachineConstantPoolEntry() && "Wrong constantpool type");
|
|
return Val.ConstVal;
|
|
}
|
|
|
|
MachineConstantPoolValue *getMachineCPVal() const {
|
|
assert(isMachineConstantPoolEntry() && "Wrong constantpool type");
|
|
return Val.MachineCPVal;
|
|
}
|
|
|
|
int getOffset() const {
|
|
return Offset & ~(1 << (sizeof(unsigned)*CHAR_BIT-1));
|
|
}
|
|
|
|
// Return the alignment of this constant pool object, which is either 0 (for
|
|
// default alignment) or the desired value.
|
|
unsigned getAlignment() const { return Alignment; }
|
|
unsigned char getTargetFlags() const { return TargetFlags; }
|
|
|
|
Type *getType() const;
|
|
|
|
static bool classof(const ConstantPoolSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::ConstantPool ||
|
|
N->getOpcode() == ISD::TargetConstantPool;
|
|
}
|
|
};
|
|
|
|
class BasicBlockSDNode : public SDNode {
|
|
MachineBasicBlock *MBB;
|
|
friend class SelectionDAG;
|
|
/// Debug info is meaningful and potentially useful here, but we create
|
|
/// blocks out of order when they're jumped to, which makes it a bit
|
|
/// harder. Let's see if we need it first.
|
|
explicit BasicBlockSDNode(MachineBasicBlock *mbb)
|
|
: SDNode(ISD::BasicBlock, DebugLoc(), getSDVTList(MVT::Other)), MBB(mbb) {
|
|
}
|
|
public:
|
|
|
|
MachineBasicBlock *getBasicBlock() const { return MBB; }
|
|
|
|
static bool classof(const BasicBlockSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::BasicBlock;
|
|
}
|
|
};
|
|
|
|
/// BuildVectorSDNode - A "pseudo-class" with methods for operating on
|
|
/// BUILD_VECTORs.
|
|
class BuildVectorSDNode : public SDNode {
|
|
// These are constructed as SDNodes and then cast to BuildVectorSDNodes.
|
|
explicit BuildVectorSDNode(); // Do not implement
|
|
public:
|
|
/// isConstantSplat - Check if this is a constant splat, and if so, find the
|
|
/// smallest element size that splats the vector. If MinSplatBits is
|
|
/// nonzero, the element size must be at least that large. Note that the
|
|
/// splat element may be the entire vector (i.e., a one element vector).
|
|
/// Returns the splat element value in SplatValue. Any undefined bits in
|
|
/// that value are zero, and the corresponding bits in the SplatUndef mask
|
|
/// are set. The SplatBitSize value is set to the splat element size in
|
|
/// bits. HasAnyUndefs is set to true if any bits in the vector are
|
|
/// undefined. isBigEndian describes the endianness of the target.
|
|
bool isConstantSplat(APInt &SplatValue, APInt &SplatUndef,
|
|
unsigned &SplatBitSize, bool &HasAnyUndefs,
|
|
unsigned MinSplatBits = 0, bool isBigEndian = false);
|
|
|
|
static inline bool classof(const BuildVectorSDNode *) { return true; }
|
|
static inline bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::BUILD_VECTOR;
|
|
}
|
|
};
|
|
|
|
/// SrcValueSDNode - An SDNode that holds an arbitrary LLVM IR Value. This is
|
|
/// used when the SelectionDAG needs to make a simple reference to something
|
|
/// in the LLVM IR representation.
|
|
///
|
|
class SrcValueSDNode : public SDNode {
|
|
const Value *V;
|
|
friend class SelectionDAG;
|
|
/// Create a SrcValue for a general value.
|
|
explicit SrcValueSDNode(const Value *v)
|
|
: SDNode(ISD::SRCVALUE, DebugLoc(), getSDVTList(MVT::Other)), V(v) {}
|
|
|
|
public:
|
|
/// getValue - return the contained Value.
|
|
const Value *getValue() const { return V; }
|
|
|
|
static bool classof(const SrcValueSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::SRCVALUE;
|
|
}
|
|
};
|
|
|
|
class MDNodeSDNode : public SDNode {
|
|
const MDNode *MD;
|
|
friend class SelectionDAG;
|
|
explicit MDNodeSDNode(const MDNode *md)
|
|
: SDNode(ISD::MDNODE_SDNODE, DebugLoc(), getSDVTList(MVT::Other)), MD(md) {}
|
|
public:
|
|
|
|
const MDNode *getMD() const { return MD; }
|
|
|
|
static bool classof(const MDNodeSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::MDNODE_SDNODE;
|
|
}
|
|
};
|
|
|
|
|
|
class RegisterSDNode : public SDNode {
|
|
unsigned Reg;
|
|
friend class SelectionDAG;
|
|
RegisterSDNode(unsigned reg, EVT VT)
|
|
: SDNode(ISD::Register, DebugLoc(), getSDVTList(VT)), Reg(reg) {
|
|
}
|
|
public:
|
|
|
|
unsigned getReg() const { return Reg; }
|
|
|
|
static bool classof(const RegisterSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::Register;
|
|
}
|
|
};
|
|
|
|
class BlockAddressSDNode : public SDNode {
|
|
const BlockAddress *BA;
|
|
unsigned char TargetFlags;
|
|
friend class SelectionDAG;
|
|
BlockAddressSDNode(unsigned NodeTy, EVT VT, const BlockAddress *ba,
|
|
unsigned char Flags)
|
|
: SDNode(NodeTy, DebugLoc(), getSDVTList(VT)),
|
|
BA(ba), TargetFlags(Flags) {
|
|
}
|
|
public:
|
|
const BlockAddress *getBlockAddress() const { return BA; }
|
|
unsigned char getTargetFlags() const { return TargetFlags; }
|
|
|
|
static bool classof(const BlockAddressSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::BlockAddress ||
|
|
N->getOpcode() == ISD::TargetBlockAddress;
|
|
}
|
|
};
|
|
|
|
class EHLabelSDNode : public SDNode {
|
|
SDUse Chain;
|
|
MCSymbol *Label;
|
|
friend class SelectionDAG;
|
|
EHLabelSDNode(DebugLoc dl, SDValue ch, MCSymbol *L)
|
|
: SDNode(ISD::EH_LABEL, dl, getSDVTList(MVT::Other)), Label(L) {
|
|
InitOperands(&Chain, ch);
|
|
}
|
|
public:
|
|
MCSymbol *getLabel() const { return Label; }
|
|
|
|
static bool classof(const EHLabelSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::EH_LABEL;
|
|
}
|
|
};
|
|
|
|
class ExternalSymbolSDNode : public SDNode {
|
|
const char *Symbol;
|
|
unsigned char TargetFlags;
|
|
|
|
friend class SelectionDAG;
|
|
ExternalSymbolSDNode(bool isTarget, const char *Sym, unsigned char TF, EVT VT)
|
|
: SDNode(isTarget ? ISD::TargetExternalSymbol : ISD::ExternalSymbol,
|
|
DebugLoc(), getSDVTList(VT)), Symbol(Sym), TargetFlags(TF) {
|
|
}
|
|
public:
|
|
|
|
const char *getSymbol() const { return Symbol; }
|
|
unsigned char getTargetFlags() const { return TargetFlags; }
|
|
|
|
static bool classof(const ExternalSymbolSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::ExternalSymbol ||
|
|
N->getOpcode() == ISD::TargetExternalSymbol;
|
|
}
|
|
};
|
|
|
|
class CondCodeSDNode : public SDNode {
|
|
ISD::CondCode Condition;
|
|
friend class SelectionDAG;
|
|
explicit CondCodeSDNode(ISD::CondCode Cond)
|
|
: SDNode(ISD::CONDCODE, DebugLoc(), getSDVTList(MVT::Other)),
|
|
Condition(Cond) {
|
|
}
|
|
public:
|
|
|
|
ISD::CondCode get() const { return Condition; }
|
|
|
|
static bool classof(const CondCodeSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::CONDCODE;
|
|
}
|
|
};
|
|
|
|
/// CvtRndSatSDNode - NOTE: avoid using this node as this may disappear in the
|
|
/// future and most targets don't support it.
|
|
class CvtRndSatSDNode : public SDNode {
|
|
ISD::CvtCode CvtCode;
|
|
friend class SelectionDAG;
|
|
explicit CvtRndSatSDNode(EVT VT, DebugLoc dl, const SDValue *Ops,
|
|
unsigned NumOps, ISD::CvtCode Code)
|
|
: SDNode(ISD::CONVERT_RNDSAT, dl, getSDVTList(VT), Ops, NumOps),
|
|
CvtCode(Code) {
|
|
assert(NumOps == 5 && "wrong number of operations");
|
|
}
|
|
public:
|
|
ISD::CvtCode getCvtCode() const { return CvtCode; }
|
|
|
|
static bool classof(const CvtRndSatSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::CONVERT_RNDSAT;
|
|
}
|
|
};
|
|
|
|
/// VTSDNode - This class is used to represent EVT's, which are used
|
|
/// to parameterize some operations.
|
|
class VTSDNode : public SDNode {
|
|
EVT ValueType;
|
|
friend class SelectionDAG;
|
|
explicit VTSDNode(EVT VT)
|
|
: SDNode(ISD::VALUETYPE, DebugLoc(), getSDVTList(MVT::Other)),
|
|
ValueType(VT) {
|
|
}
|
|
public:
|
|
|
|
EVT getVT() const { return ValueType; }
|
|
|
|
static bool classof(const VTSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::VALUETYPE;
|
|
}
|
|
};
|
|
|
|
/// LSBaseSDNode - Base class for LoadSDNode and StoreSDNode
|
|
///
|
|
class LSBaseSDNode : public MemSDNode {
|
|
//! Operand array for load and store
|
|
/*!
|
|
\note Moving this array to the base class captures more
|
|
common functionality shared between LoadSDNode and
|
|
StoreSDNode
|
|
*/
|
|
SDUse Ops[4];
|
|
public:
|
|
LSBaseSDNode(ISD::NodeType NodeTy, DebugLoc dl, SDValue *Operands,
|
|
unsigned numOperands, SDVTList VTs, ISD::MemIndexedMode AM,
|
|
EVT MemVT, MachineMemOperand *MMO)
|
|
: MemSDNode(NodeTy, dl, VTs, MemVT, MMO) {
|
|
SubclassData |= AM << 2;
|
|
assert(getAddressingMode() == AM && "MemIndexedMode encoding error!");
|
|
InitOperands(Ops, Operands, numOperands);
|
|
assert((getOffset().getOpcode() == ISD::UNDEF || isIndexed()) &&
|
|
"Only indexed loads and stores have a non-undef offset operand");
|
|
}
|
|
|
|
const SDValue &getOffset() const {
|
|
return getOperand(getOpcode() == ISD::LOAD ? 2 : 3);
|
|
}
|
|
|
|
/// getAddressingMode - Return the addressing mode for this load or store:
|
|
/// unindexed, pre-inc, pre-dec, post-inc, or post-dec.
|
|
ISD::MemIndexedMode getAddressingMode() const {
|
|
return ISD::MemIndexedMode((SubclassData >> 2) & 7);
|
|
}
|
|
|
|
/// isIndexed - Return true if this is a pre/post inc/dec load/store.
|
|
bool isIndexed() const { return getAddressingMode() != ISD::UNINDEXED; }
|
|
|
|
/// isUnindexed - Return true if this is NOT a pre/post inc/dec load/store.
|
|
bool isUnindexed() const { return getAddressingMode() == ISD::UNINDEXED; }
|
|
|
|
static bool classof(const LSBaseSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::LOAD ||
|
|
N->getOpcode() == ISD::STORE;
|
|
}
|
|
};
|
|
|
|
/// LoadSDNode - This class is used to represent ISD::LOAD nodes.
|
|
///
|
|
class LoadSDNode : public LSBaseSDNode {
|
|
friend class SelectionDAG;
|
|
LoadSDNode(SDValue *ChainPtrOff, DebugLoc dl, SDVTList VTs,
|
|
ISD::MemIndexedMode AM, ISD::LoadExtType ETy, EVT MemVT,
|
|
MachineMemOperand *MMO)
|
|
: LSBaseSDNode(ISD::LOAD, dl, ChainPtrOff, 3,
|
|
VTs, AM, MemVT, MMO) {
|
|
SubclassData |= (unsigned short)ETy;
|
|
assert(getExtensionType() == ETy && "LoadExtType encoding error!");
|
|
assert(readMem() && "Load MachineMemOperand is not a load!");
|
|
assert(!writeMem() && "Load MachineMemOperand is a store!");
|
|
}
|
|
public:
|
|
|
|
/// getExtensionType - Return whether this is a plain node,
|
|
/// or one of the varieties of value-extending loads.
|
|
ISD::LoadExtType getExtensionType() const {
|
|
return ISD::LoadExtType(SubclassData & 3);
|
|
}
|
|
|
|
const SDValue &getBasePtr() const { return getOperand(1); }
|
|
const SDValue &getOffset() const { return getOperand(2); }
|
|
|
|
static bool classof(const LoadSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::LOAD;
|
|
}
|
|
};
|
|
|
|
/// StoreSDNode - This class is used to represent ISD::STORE nodes.
|
|
///
|
|
class StoreSDNode : public LSBaseSDNode {
|
|
friend class SelectionDAG;
|
|
StoreSDNode(SDValue *ChainValuePtrOff, DebugLoc dl, SDVTList VTs,
|
|
ISD::MemIndexedMode AM, bool isTrunc, EVT MemVT,
|
|
MachineMemOperand *MMO)
|
|
: LSBaseSDNode(ISD::STORE, dl, ChainValuePtrOff, 4,
|
|
VTs, AM, MemVT, MMO) {
|
|
SubclassData |= (unsigned short)isTrunc;
|
|
assert(isTruncatingStore() == isTrunc && "isTrunc encoding error!");
|
|
assert(!readMem() && "Store MachineMemOperand is a load!");
|
|
assert(writeMem() && "Store MachineMemOperand is not a store!");
|
|
}
|
|
public:
|
|
|
|
/// isTruncatingStore - Return true if the op does a truncation before store.
|
|
/// For integers this is the same as doing a TRUNCATE and storing the result.
|
|
/// For floats, it is the same as doing an FP_ROUND and storing the result.
|
|
bool isTruncatingStore() const { return SubclassData & 1; }
|
|
|
|
const SDValue &getValue() const { return getOperand(1); }
|
|
const SDValue &getBasePtr() const { return getOperand(2); }
|
|
const SDValue &getOffset() const { return getOperand(3); }
|
|
|
|
static bool classof(const StoreSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->getOpcode() == ISD::STORE;
|
|
}
|
|
};
|
|
|
|
/// MachineSDNode - An SDNode that represents everything that will be needed
|
|
/// to construct a MachineInstr. These nodes are created during the
|
|
/// instruction selection proper phase.
|
|
///
|
|
class MachineSDNode : public SDNode {
|
|
public:
|
|
typedef MachineMemOperand **mmo_iterator;
|
|
|
|
private:
|
|
friend class SelectionDAG;
|
|
MachineSDNode(unsigned Opc, const DebugLoc DL, SDVTList VTs)
|
|
: SDNode(Opc, DL, VTs), MemRefs(0), MemRefsEnd(0) {}
|
|
|
|
/// LocalOperands - Operands for this instruction, if they fit here. If
|
|
/// they don't, this field is unused.
|
|
SDUse LocalOperands[4];
|
|
|
|
/// MemRefs - Memory reference descriptions for this instruction.
|
|
mmo_iterator MemRefs;
|
|
mmo_iterator MemRefsEnd;
|
|
|
|
public:
|
|
mmo_iterator memoperands_begin() const { return MemRefs; }
|
|
mmo_iterator memoperands_end() const { return MemRefsEnd; }
|
|
bool memoperands_empty() const { return MemRefsEnd == MemRefs; }
|
|
|
|
/// setMemRefs - Assign this MachineSDNodes's memory reference descriptor
|
|
/// list. This does not transfer ownership.
|
|
void setMemRefs(mmo_iterator NewMemRefs, mmo_iterator NewMemRefsEnd) {
|
|
MemRefs = NewMemRefs;
|
|
MemRefsEnd = NewMemRefsEnd;
|
|
}
|
|
|
|
static bool classof(const MachineSDNode *) { return true; }
|
|
static bool classof(const SDNode *N) {
|
|
return N->isMachineOpcode();
|
|
}
|
|
};
|
|
|
|
class SDNodeIterator : public std::iterator<std::forward_iterator_tag,
|
|
SDNode, ptrdiff_t> {
|
|
SDNode *Node;
|
|
unsigned Operand;
|
|
|
|
SDNodeIterator(SDNode *N, unsigned Op) : Node(N), Operand(Op) {}
|
|
public:
|
|
bool operator==(const SDNodeIterator& x) const {
|
|
return Operand == x.Operand;
|
|
}
|
|
bool operator!=(const SDNodeIterator& x) const { return !operator==(x); }
|
|
|
|
const SDNodeIterator &operator=(const SDNodeIterator &I) {
|
|
assert(I.Node == Node && "Cannot assign iterators to two different nodes!");
|
|
Operand = I.Operand;
|
|
return *this;
|
|
}
|
|
|
|
pointer operator*() const {
|
|
return Node->getOperand(Operand).getNode();
|
|
}
|
|
pointer operator->() const { return operator*(); }
|
|
|
|
SDNodeIterator& operator++() { // Preincrement
|
|
++Operand;
|
|
return *this;
|
|
}
|
|
SDNodeIterator operator++(int) { // Postincrement
|
|
SDNodeIterator tmp = *this; ++*this; return tmp;
|
|
}
|
|
size_t operator-(SDNodeIterator Other) const {
|
|
assert(Node == Other.Node &&
|
|
"Cannot compare iterators of two different nodes!");
|
|
return Operand - Other.Operand;
|
|
}
|
|
|
|
static SDNodeIterator begin(SDNode *N) { return SDNodeIterator(N, 0); }
|
|
static SDNodeIterator end (SDNode *N) {
|
|
return SDNodeIterator(N, N->getNumOperands());
|
|
}
|
|
|
|
unsigned getOperand() const { return Operand; }
|
|
const SDNode *getNode() const { return Node; }
|
|
};
|
|
|
|
template <> struct GraphTraits<SDNode*> {
|
|
typedef SDNode NodeType;
|
|
typedef SDNodeIterator ChildIteratorType;
|
|
static inline NodeType *getEntryNode(SDNode *N) { return N; }
|
|
static inline ChildIteratorType child_begin(NodeType *N) {
|
|
return SDNodeIterator::begin(N);
|
|
}
|
|
static inline ChildIteratorType child_end(NodeType *N) {
|
|
return SDNodeIterator::end(N);
|
|
}
|
|
};
|
|
|
|
/// LargestSDNode - The largest SDNode class.
|
|
///
|
|
typedef LoadSDNode LargestSDNode;
|
|
|
|
/// MostAlignedSDNode - The SDNode class with the greatest alignment
|
|
/// requirement.
|
|
///
|
|
typedef GlobalAddressSDNode MostAlignedSDNode;
|
|
|
|
namespace ISD {
|
|
/// isNormalLoad - Returns true if the specified node is a non-extending
|
|
/// and unindexed load.
|
|
inline bool isNormalLoad(const SDNode *N) {
|
|
const LoadSDNode *Ld = dyn_cast<LoadSDNode>(N);
|
|
return Ld && Ld->getExtensionType() == ISD::NON_EXTLOAD &&
|
|
Ld->getAddressingMode() == ISD::UNINDEXED;
|
|
}
|
|
|
|
/// isNON_EXTLoad - Returns true if the specified node is a non-extending
|
|
/// load.
|
|
inline bool isNON_EXTLoad(const SDNode *N) {
|
|
return isa<LoadSDNode>(N) &&
|
|
cast<LoadSDNode>(N)->getExtensionType() == ISD::NON_EXTLOAD;
|
|
}
|
|
|
|
/// isEXTLoad - Returns true if the specified node is a EXTLOAD.
|
|
///
|
|
inline bool isEXTLoad(const SDNode *N) {
|
|
return isa<LoadSDNode>(N) &&
|
|
cast<LoadSDNode>(N)->getExtensionType() == ISD::EXTLOAD;
|
|
}
|
|
|
|
/// isSEXTLoad - Returns true if the specified node is a SEXTLOAD.
|
|
///
|
|
inline bool isSEXTLoad(const SDNode *N) {
|
|
return isa<LoadSDNode>(N) &&
|
|
cast<LoadSDNode>(N)->getExtensionType() == ISD::SEXTLOAD;
|
|
}
|
|
|
|
/// isZEXTLoad - Returns true if the specified node is a ZEXTLOAD.
|
|
///
|
|
inline bool isZEXTLoad(const SDNode *N) {
|
|
return isa<LoadSDNode>(N) &&
|
|
cast<LoadSDNode>(N)->getExtensionType() == ISD::ZEXTLOAD;
|
|
}
|
|
|
|
/// isUNINDEXEDLoad - Returns true if the specified node is an unindexed load.
|
|
///
|
|
inline bool isUNINDEXEDLoad(const SDNode *N) {
|
|
return isa<LoadSDNode>(N) &&
|
|
cast<LoadSDNode>(N)->getAddressingMode() == ISD::UNINDEXED;
|
|
}
|
|
|
|
/// isNormalStore - Returns true if the specified node is a non-truncating
|
|
/// and unindexed store.
|
|
inline bool isNormalStore(const SDNode *N) {
|
|
const StoreSDNode *St = dyn_cast<StoreSDNode>(N);
|
|
return St && !St->isTruncatingStore() &&
|
|
St->getAddressingMode() == ISD::UNINDEXED;
|
|
}
|
|
|
|
/// isNON_TRUNCStore - Returns true if the specified node is a non-truncating
|
|
/// store.
|
|
inline bool isNON_TRUNCStore(const SDNode *N) {
|
|
return isa<StoreSDNode>(N) && !cast<StoreSDNode>(N)->isTruncatingStore();
|
|
}
|
|
|
|
/// isTRUNCStore - Returns true if the specified node is a truncating
|
|
/// store.
|
|
inline bool isTRUNCStore(const SDNode *N) {
|
|
return isa<StoreSDNode>(N) && cast<StoreSDNode>(N)->isTruncatingStore();
|
|
}
|
|
|
|
/// isUNINDEXEDStore - Returns true if the specified node is an
|
|
/// unindexed store.
|
|
inline bool isUNINDEXEDStore(const SDNode *N) {
|
|
return isa<StoreSDNode>(N) &&
|
|
cast<StoreSDNode>(N)->getAddressingMode() == ISD::UNINDEXED;
|
|
}
|
|
}
|
|
|
|
} // end llvm namespace
|
|
|
|
#endif
|