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1124 lines
38 KiB
1124 lines
38 KiB
//===- DAGISelMatcher.h - Representation of DAG pattern matcher -*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_UTILS_TABLEGEN_DAGISELMATCHER_H
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#define LLVM_UTILS_TABLEGEN_DAGISELMATCHER_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/MachineValueType.h"
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namespace llvm {
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struct CodeGenRegister;
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class CodeGenDAGPatterns;
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class Matcher;
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class PatternToMatch;
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class raw_ostream;
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class ComplexPattern;
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class Record;
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class SDNodeInfo;
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class TreePredicateFn;
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class TreePattern;
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Matcher *ConvertPatternToMatcher(const PatternToMatch &Pattern,unsigned Variant,
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const CodeGenDAGPatterns &CGP);
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void OptimizeMatcher(std::unique_ptr<Matcher> &Matcher,
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const CodeGenDAGPatterns &CGP);
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void EmitMatcherTable(Matcher *Matcher, const CodeGenDAGPatterns &CGP,
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raw_ostream &OS);
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/// Matcher - Base class for all the DAG ISel Matcher representation
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/// nodes.
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class Matcher {
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// The next matcher node that is executed after this one. Null if this is the
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// last stage of a match.
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std::unique_ptr<Matcher> Next;
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size_t Size; // Size in bytes of matcher and all its children (if any).
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virtual void anchor();
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public:
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enum KindTy {
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// Matcher state manipulation.
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Scope, // Push a checking scope.
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RecordNode, // Record the current node.
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RecordChild, // Record a child of the current node.
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RecordMemRef, // Record the memref in the current node.
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CaptureGlueInput, // If the current node has an input glue, save it.
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MoveChild, // Move current node to specified child.
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MoveParent, // Move current node to parent.
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// Predicate checking.
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CheckSame, // Fail if not same as prev match.
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CheckChildSame, // Fail if child not same as prev match.
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CheckPatternPredicate,
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CheckPredicate, // Fail if node predicate fails.
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CheckOpcode, // Fail if not opcode.
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SwitchOpcode, // Dispatch based on opcode.
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CheckType, // Fail if not correct type.
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SwitchType, // Dispatch based on type.
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CheckChildType, // Fail if child has wrong type.
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CheckInteger, // Fail if wrong val.
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CheckChildInteger, // Fail if child is wrong val.
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CheckCondCode, // Fail if not condcode.
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CheckChild2CondCode, // Fail if child is wrong condcode.
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CheckValueType,
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CheckComplexPat,
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CheckAndImm,
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CheckOrImm,
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CheckImmAllOnesV,
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CheckImmAllZerosV,
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CheckFoldableChainNode,
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// Node creation/emisssion.
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EmitInteger, // Create a TargetConstant
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EmitStringInteger, // Create a TargetConstant from a string.
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EmitRegister, // Create a register.
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EmitConvertToTarget, // Convert a imm/fpimm to target imm/fpimm
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EmitMergeInputChains, // Merge together a chains for an input.
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EmitCopyToReg, // Emit a copytoreg into a physreg.
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EmitNode, // Create a DAG node
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EmitNodeXForm, // Run a SDNodeXForm
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CompleteMatch, // Finish a match and update the results.
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MorphNodeTo, // Build a node, finish a match and update results.
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// Highest enum value; watch out when adding more.
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HighestKind = MorphNodeTo
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};
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const KindTy Kind;
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protected:
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Matcher(KindTy K) : Kind(K) {}
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public:
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virtual ~Matcher() {}
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unsigned getSize() const { return Size; }
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void setSize(unsigned sz) { Size = sz; }
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KindTy getKind() const { return Kind; }
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Matcher *getNext() { return Next.get(); }
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const Matcher *getNext() const { return Next.get(); }
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void setNext(Matcher *C) { Next.reset(C); }
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Matcher *takeNext() { return Next.release(); }
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std::unique_ptr<Matcher> &getNextPtr() { return Next; }
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bool isEqual(const Matcher *M) const {
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if (getKind() != M->getKind()) return false;
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return isEqualImpl(M);
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}
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/// isSimplePredicateNode - Return true if this is a simple predicate that
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/// operates on the node or its children without potential side effects or a
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/// change of the current node.
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bool isSimplePredicateNode() const {
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switch (getKind()) {
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default: return false;
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case CheckSame:
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case CheckChildSame:
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case CheckPatternPredicate:
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case CheckPredicate:
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case CheckOpcode:
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case CheckType:
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case CheckChildType:
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case CheckInteger:
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case CheckChildInteger:
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case CheckCondCode:
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case CheckChild2CondCode:
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case CheckValueType:
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case CheckAndImm:
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case CheckOrImm:
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case CheckImmAllOnesV:
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case CheckImmAllZerosV:
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case CheckFoldableChainNode:
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return true;
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}
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}
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/// isSimplePredicateOrRecordNode - Return true if this is a record node or
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/// a simple predicate.
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bool isSimplePredicateOrRecordNode() const {
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return isSimplePredicateNode() ||
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getKind() == RecordNode || getKind() == RecordChild;
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}
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/// unlinkNode - Unlink the specified node from this chain. If Other == this,
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/// we unlink the next pointer and return it. Otherwise we unlink Other from
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/// the list and return this.
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Matcher *unlinkNode(Matcher *Other);
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/// canMoveBefore - Return true if this matcher is the same as Other, or if
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/// we can move this matcher past all of the nodes in-between Other and this
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/// node. Other must be equal to or before this.
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bool canMoveBefore(const Matcher *Other) const;
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/// canMoveBeforeNode - Return true if it is safe to move the current matcher
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/// across the specified one.
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bool canMoveBeforeNode(const Matcher *Other) const;
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/// isContradictory - Return true of these two matchers could never match on
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/// the same node.
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bool isContradictory(const Matcher *Other) const {
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// Since this predicate is reflexive, we canonicalize the ordering so that
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// we always match a node against nodes with kinds that are greater or equal
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// to them. For example, we'll pass in a CheckType node as an argument to
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// the CheckOpcode method, not the other way around.
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if (getKind() < Other->getKind())
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return isContradictoryImpl(Other);
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return Other->isContradictoryImpl(this);
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}
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void print(raw_ostream &OS, unsigned indent = 0) const;
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void printOne(raw_ostream &OS) const;
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void dump() const;
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protected:
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virtual void printImpl(raw_ostream &OS, unsigned indent) const = 0;
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virtual bool isEqualImpl(const Matcher *M) const = 0;
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virtual bool isContradictoryImpl(const Matcher *M) const { return false; }
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};
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/// ScopeMatcher - This attempts to match each of its children to find the first
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/// one that successfully matches. If one child fails, it tries the next child.
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/// If none of the children match then this check fails. It never has a 'next'.
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class ScopeMatcher : public Matcher {
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SmallVector<Matcher*, 4> Children;
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public:
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ScopeMatcher(ArrayRef<Matcher *> children)
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: Matcher(Scope), Children(children.begin(), children.end()) {
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}
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~ScopeMatcher() override;
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unsigned getNumChildren() const { return Children.size(); }
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Matcher *getChild(unsigned i) { return Children[i]; }
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const Matcher *getChild(unsigned i) const { return Children[i]; }
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void resetChild(unsigned i, Matcher *N) {
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delete Children[i];
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Children[i] = N;
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}
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Matcher *takeChild(unsigned i) {
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Matcher *Res = Children[i];
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Children[i] = nullptr;
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return Res;
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}
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void setNumChildren(unsigned NC) {
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if (NC < Children.size()) {
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// delete any children we're about to lose pointers to.
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for (unsigned i = NC, e = Children.size(); i != e; ++i)
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delete Children[i];
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}
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Children.resize(NC);
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}
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static bool classof(const Matcher *N) {
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return N->getKind() == Scope;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override { return false; }
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};
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/// RecordMatcher - Save the current node in the operand list.
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class RecordMatcher : public Matcher {
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/// WhatFor - This is a string indicating why we're recording this. This
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/// should only be used for comment generation not anything semantic.
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std::string WhatFor;
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/// ResultNo - The slot number in the RecordedNodes vector that this will be,
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/// just printed as a comment.
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unsigned ResultNo;
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public:
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RecordMatcher(const std::string &whatfor, unsigned resultNo)
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: Matcher(RecordNode), WhatFor(whatfor), ResultNo(resultNo) {}
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const std::string &getWhatFor() const { return WhatFor; }
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unsigned getResultNo() const { return ResultNo; }
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static bool classof(const Matcher *N) {
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return N->getKind() == RecordNode;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override { return true; }
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};
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/// RecordChildMatcher - Save a numbered child of the current node, or fail
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/// the match if it doesn't exist. This is logically equivalent to:
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/// MoveChild N + RecordNode + MoveParent.
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class RecordChildMatcher : public Matcher {
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unsigned ChildNo;
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/// WhatFor - This is a string indicating why we're recording this. This
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/// should only be used for comment generation not anything semantic.
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std::string WhatFor;
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/// ResultNo - The slot number in the RecordedNodes vector that this will be,
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/// just printed as a comment.
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unsigned ResultNo;
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public:
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RecordChildMatcher(unsigned childno, const std::string &whatfor,
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unsigned resultNo)
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: Matcher(RecordChild), ChildNo(childno), WhatFor(whatfor),
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ResultNo(resultNo) {}
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unsigned getChildNo() const { return ChildNo; }
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const std::string &getWhatFor() const { return WhatFor; }
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unsigned getResultNo() const { return ResultNo; }
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static bool classof(const Matcher *N) {
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return N->getKind() == RecordChild;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override {
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return cast<RecordChildMatcher>(M)->getChildNo() == getChildNo();
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}
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};
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/// RecordMemRefMatcher - Save the current node's memref.
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class RecordMemRefMatcher : public Matcher {
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public:
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RecordMemRefMatcher() : Matcher(RecordMemRef) {}
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static bool classof(const Matcher *N) {
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return N->getKind() == RecordMemRef;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override { return true; }
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};
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/// CaptureGlueInputMatcher - If the current record has a glue input, record
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/// it so that it is used as an input to the generated code.
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class CaptureGlueInputMatcher : public Matcher {
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public:
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CaptureGlueInputMatcher() : Matcher(CaptureGlueInput) {}
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static bool classof(const Matcher *N) {
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return N->getKind() == CaptureGlueInput;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override { return true; }
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};
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/// MoveChildMatcher - This tells the interpreter to move into the
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/// specified child node.
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class MoveChildMatcher : public Matcher {
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unsigned ChildNo;
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public:
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MoveChildMatcher(unsigned childNo) : Matcher(MoveChild), ChildNo(childNo) {}
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unsigned getChildNo() const { return ChildNo; }
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static bool classof(const Matcher *N) {
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return N->getKind() == MoveChild;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override {
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return cast<MoveChildMatcher>(M)->getChildNo() == getChildNo();
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}
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};
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/// MoveParentMatcher - This tells the interpreter to move to the parent
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/// of the current node.
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class MoveParentMatcher : public Matcher {
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public:
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MoveParentMatcher() : Matcher(MoveParent) {}
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static bool classof(const Matcher *N) {
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return N->getKind() == MoveParent;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override { return true; }
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};
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/// CheckSameMatcher - This checks to see if this node is exactly the same
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/// node as the specified match that was recorded with 'Record'. This is used
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/// when patterns have the same name in them, like '(mul GPR:$in, GPR:$in)'.
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class CheckSameMatcher : public Matcher {
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unsigned MatchNumber;
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public:
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CheckSameMatcher(unsigned matchnumber)
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: Matcher(CheckSame), MatchNumber(matchnumber) {}
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unsigned getMatchNumber() const { return MatchNumber; }
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static bool classof(const Matcher *N) {
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return N->getKind() == CheckSame;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override {
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return cast<CheckSameMatcher>(M)->getMatchNumber() == getMatchNumber();
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}
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};
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/// CheckChildSameMatcher - This checks to see if child node is exactly the same
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/// node as the specified match that was recorded with 'Record'. This is used
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/// when patterns have the same name in them, like '(mul GPR:$in, GPR:$in)'.
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class CheckChildSameMatcher : public Matcher {
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unsigned ChildNo;
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unsigned MatchNumber;
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public:
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CheckChildSameMatcher(unsigned childno, unsigned matchnumber)
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: Matcher(CheckChildSame), ChildNo(childno), MatchNumber(matchnumber) {}
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unsigned getChildNo() const { return ChildNo; }
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unsigned getMatchNumber() const { return MatchNumber; }
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static bool classof(const Matcher *N) {
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return N->getKind() == CheckChildSame;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override {
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return cast<CheckChildSameMatcher>(M)->ChildNo == ChildNo &&
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cast<CheckChildSameMatcher>(M)->MatchNumber == MatchNumber;
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}
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};
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/// CheckPatternPredicateMatcher - This checks the target-specific predicate
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/// to see if the entire pattern is capable of matching. This predicate does
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/// not take a node as input. This is used for subtarget feature checks etc.
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class CheckPatternPredicateMatcher : public Matcher {
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std::string Predicate;
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public:
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CheckPatternPredicateMatcher(StringRef predicate)
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: Matcher(CheckPatternPredicate), Predicate(predicate) {}
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StringRef getPredicate() const { return Predicate; }
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static bool classof(const Matcher *N) {
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return N->getKind() == CheckPatternPredicate;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override {
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return cast<CheckPatternPredicateMatcher>(M)->getPredicate() == Predicate;
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}
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};
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/// CheckPredicateMatcher - This checks the target-specific predicate to
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/// see if the node is acceptable.
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class CheckPredicateMatcher : public Matcher {
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TreePattern *Pred;
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const SmallVector<unsigned, 4> Operands;
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public:
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CheckPredicateMatcher(const TreePredicateFn &pred,
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const SmallVectorImpl<unsigned> &Operands);
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TreePredicateFn getPredicate() const;
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unsigned getNumOperands() const;
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unsigned getOperandNo(unsigned i) const;
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static bool classof(const Matcher *N) {
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return N->getKind() == CheckPredicate;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override {
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return cast<CheckPredicateMatcher>(M)->Pred == Pred;
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}
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};
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/// CheckOpcodeMatcher - This checks to see if the current node has the
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/// specified opcode, if not it fails to match.
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class CheckOpcodeMatcher : public Matcher {
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const SDNodeInfo &Opcode;
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public:
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CheckOpcodeMatcher(const SDNodeInfo &opcode)
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: Matcher(CheckOpcode), Opcode(opcode) {}
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const SDNodeInfo &getOpcode() const { return Opcode; }
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static bool classof(const Matcher *N) {
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return N->getKind() == CheckOpcode;
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}
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override;
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bool isContradictoryImpl(const Matcher *M) const override;
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};
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/// SwitchOpcodeMatcher - Switch based on the current node's opcode, dispatching
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/// to one matcher per opcode. If the opcode doesn't match any of the cases,
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/// then the match fails. This is semantically equivalent to a Scope node where
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/// every child does a CheckOpcode, but is much faster.
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class SwitchOpcodeMatcher : public Matcher {
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SmallVector<std::pair<const SDNodeInfo*, Matcher*>, 8> Cases;
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public:
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SwitchOpcodeMatcher(ArrayRef<std::pair<const SDNodeInfo*, Matcher*> > cases)
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: Matcher(SwitchOpcode), Cases(cases.begin(), cases.end()) {}
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~SwitchOpcodeMatcher() override;
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static bool classof(const Matcher *N) {
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return N->getKind() == SwitchOpcode;
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}
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unsigned getNumCases() const { return Cases.size(); }
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const SDNodeInfo &getCaseOpcode(unsigned i) const { return *Cases[i].first; }
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Matcher *getCaseMatcher(unsigned i) { return Cases[i].second; }
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const Matcher *getCaseMatcher(unsigned i) const { return Cases[i].second; }
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private:
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void printImpl(raw_ostream &OS, unsigned indent) const override;
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bool isEqualImpl(const Matcher *M) const override { return false; }
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};
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/// CheckTypeMatcher - This checks to see if the current node has the
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/// specified type at the specified result, if not it fails to match.
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class CheckTypeMatcher : public Matcher {
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MVT::SimpleValueType Type;
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unsigned ResNo;
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public:
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CheckTypeMatcher(MVT::SimpleValueType type, unsigned resno)
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: Matcher(CheckType), Type(type), ResNo(resno) {}
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MVT::SimpleValueType getType() const { return Type; }
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unsigned getResNo() const { return ResNo; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckType;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CheckTypeMatcher>(M)->Type == Type;
|
|
}
|
|
bool isContradictoryImpl(const Matcher *M) const override;
|
|
};
|
|
|
|
/// SwitchTypeMatcher - Switch based on the current node's type, dispatching
|
|
/// to one matcher per case. If the type doesn't match any of the cases,
|
|
/// then the match fails. This is semantically equivalent to a Scope node where
|
|
/// every child does a CheckType, but is much faster.
|
|
class SwitchTypeMatcher : public Matcher {
|
|
SmallVector<std::pair<MVT::SimpleValueType, Matcher*>, 8> Cases;
|
|
public:
|
|
SwitchTypeMatcher(ArrayRef<std::pair<MVT::SimpleValueType, Matcher*> > cases)
|
|
: Matcher(SwitchType), Cases(cases.begin(), cases.end()) {}
|
|
~SwitchTypeMatcher() override;
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == SwitchType;
|
|
}
|
|
|
|
unsigned getNumCases() const { return Cases.size(); }
|
|
|
|
MVT::SimpleValueType getCaseType(unsigned i) const { return Cases[i].first; }
|
|
Matcher *getCaseMatcher(unsigned i) { return Cases[i].second; }
|
|
const Matcher *getCaseMatcher(unsigned i) const { return Cases[i].second; }
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override { return false; }
|
|
};
|
|
|
|
|
|
/// CheckChildTypeMatcher - This checks to see if a child node has the
|
|
/// specified type, if not it fails to match.
|
|
class CheckChildTypeMatcher : public Matcher {
|
|
unsigned ChildNo;
|
|
MVT::SimpleValueType Type;
|
|
public:
|
|
CheckChildTypeMatcher(unsigned childno, MVT::SimpleValueType type)
|
|
: Matcher(CheckChildType), ChildNo(childno), Type(type) {}
|
|
|
|
unsigned getChildNo() const { return ChildNo; }
|
|
MVT::SimpleValueType getType() const { return Type; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckChildType;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CheckChildTypeMatcher>(M)->ChildNo == ChildNo &&
|
|
cast<CheckChildTypeMatcher>(M)->Type == Type;
|
|
}
|
|
bool isContradictoryImpl(const Matcher *M) const override;
|
|
};
|
|
|
|
|
|
/// CheckIntegerMatcher - This checks to see if the current node is a
|
|
/// ConstantSDNode with the specified integer value, if not it fails to match.
|
|
class CheckIntegerMatcher : public Matcher {
|
|
int64_t Value;
|
|
public:
|
|
CheckIntegerMatcher(int64_t value)
|
|
: Matcher(CheckInteger), Value(value) {}
|
|
|
|
int64_t getValue() const { return Value; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckInteger;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CheckIntegerMatcher>(M)->Value == Value;
|
|
}
|
|
bool isContradictoryImpl(const Matcher *M) const override;
|
|
};
|
|
|
|
/// CheckChildIntegerMatcher - This checks to see if the child node is a
|
|
/// ConstantSDNode with a specified integer value, if not it fails to match.
|
|
class CheckChildIntegerMatcher : public Matcher {
|
|
unsigned ChildNo;
|
|
int64_t Value;
|
|
public:
|
|
CheckChildIntegerMatcher(unsigned childno, int64_t value)
|
|
: Matcher(CheckChildInteger), ChildNo(childno), Value(value) {}
|
|
|
|
unsigned getChildNo() const { return ChildNo; }
|
|
int64_t getValue() const { return Value; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckChildInteger;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CheckChildIntegerMatcher>(M)->ChildNo == ChildNo &&
|
|
cast<CheckChildIntegerMatcher>(M)->Value == Value;
|
|
}
|
|
bool isContradictoryImpl(const Matcher *M) const override;
|
|
};
|
|
|
|
/// CheckCondCodeMatcher - This checks to see if the current node is a
|
|
/// CondCodeSDNode with the specified condition, if not it fails to match.
|
|
class CheckCondCodeMatcher : public Matcher {
|
|
StringRef CondCodeName;
|
|
public:
|
|
CheckCondCodeMatcher(StringRef condcodename)
|
|
: Matcher(CheckCondCode), CondCodeName(condcodename) {}
|
|
|
|
StringRef getCondCodeName() const { return CondCodeName; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckCondCode;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CheckCondCodeMatcher>(M)->CondCodeName == CondCodeName;
|
|
}
|
|
};
|
|
|
|
/// CheckChild2CondCodeMatcher - This checks to see if child 2 node is a
|
|
/// CondCodeSDNode with the specified condition, if not it fails to match.
|
|
class CheckChild2CondCodeMatcher : public Matcher {
|
|
StringRef CondCodeName;
|
|
public:
|
|
CheckChild2CondCodeMatcher(StringRef condcodename)
|
|
: Matcher(CheckChild2CondCode), CondCodeName(condcodename) {}
|
|
|
|
StringRef getCondCodeName() const { return CondCodeName; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckChild2CondCode;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CheckChild2CondCodeMatcher>(M)->CondCodeName == CondCodeName;
|
|
}
|
|
};
|
|
|
|
/// CheckValueTypeMatcher - This checks to see if the current node is a
|
|
/// VTSDNode with the specified type, if not it fails to match.
|
|
class CheckValueTypeMatcher : public Matcher {
|
|
StringRef TypeName;
|
|
public:
|
|
CheckValueTypeMatcher(StringRef type_name)
|
|
: Matcher(CheckValueType), TypeName(type_name) {}
|
|
|
|
StringRef getTypeName() const { return TypeName; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckValueType;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CheckValueTypeMatcher>(M)->TypeName == TypeName;
|
|
}
|
|
bool isContradictoryImpl(const Matcher *M) const override;
|
|
};
|
|
|
|
|
|
|
|
/// CheckComplexPatMatcher - This node runs the specified ComplexPattern on
|
|
/// the current node.
|
|
class CheckComplexPatMatcher : public Matcher {
|
|
const ComplexPattern &Pattern;
|
|
|
|
/// MatchNumber - This is the recorded nodes slot that contains the node we
|
|
/// want to match against.
|
|
unsigned MatchNumber;
|
|
|
|
/// Name - The name of the node we're matching, for comment emission.
|
|
std::string Name;
|
|
|
|
/// FirstResult - This is the first slot in the RecordedNodes list that the
|
|
/// result of the match populates.
|
|
unsigned FirstResult;
|
|
public:
|
|
CheckComplexPatMatcher(const ComplexPattern &pattern, unsigned matchnumber,
|
|
const std::string &name, unsigned firstresult)
|
|
: Matcher(CheckComplexPat), Pattern(pattern), MatchNumber(matchnumber),
|
|
Name(name), FirstResult(firstresult) {}
|
|
|
|
const ComplexPattern &getPattern() const { return Pattern; }
|
|
unsigned getMatchNumber() const { return MatchNumber; }
|
|
|
|
const std::string getName() const { return Name; }
|
|
unsigned getFirstResult() const { return FirstResult; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckComplexPat;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return &cast<CheckComplexPatMatcher>(M)->Pattern == &Pattern &&
|
|
cast<CheckComplexPatMatcher>(M)->MatchNumber == MatchNumber;
|
|
}
|
|
};
|
|
|
|
/// CheckAndImmMatcher - This checks to see if the current node is an 'and'
|
|
/// with something equivalent to the specified immediate.
|
|
class CheckAndImmMatcher : public Matcher {
|
|
int64_t Value;
|
|
public:
|
|
CheckAndImmMatcher(int64_t value)
|
|
: Matcher(CheckAndImm), Value(value) {}
|
|
|
|
int64_t getValue() const { return Value; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckAndImm;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CheckAndImmMatcher>(M)->Value == Value;
|
|
}
|
|
};
|
|
|
|
/// CheckOrImmMatcher - This checks to see if the current node is an 'and'
|
|
/// with something equivalent to the specified immediate.
|
|
class CheckOrImmMatcher : public Matcher {
|
|
int64_t Value;
|
|
public:
|
|
CheckOrImmMatcher(int64_t value)
|
|
: Matcher(CheckOrImm), Value(value) {}
|
|
|
|
int64_t getValue() const { return Value; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckOrImm;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CheckOrImmMatcher>(M)->Value == Value;
|
|
}
|
|
};
|
|
|
|
/// CheckImmAllOnesVMatcher - This check if the current node is an build vector
|
|
/// of all ones.
|
|
class CheckImmAllOnesVMatcher : public Matcher {
|
|
public:
|
|
CheckImmAllOnesVMatcher() : Matcher(CheckImmAllOnesV) {}
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckImmAllOnesV;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override { return true; }
|
|
bool isContradictoryImpl(const Matcher *M) const override;
|
|
};
|
|
|
|
/// CheckImmAllZerosVMatcher - This check if the current node is an build vector
|
|
/// of all zeros.
|
|
class CheckImmAllZerosVMatcher : public Matcher {
|
|
public:
|
|
CheckImmAllZerosVMatcher() : Matcher(CheckImmAllZerosV) {}
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckImmAllZerosV;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override { return true; }
|
|
bool isContradictoryImpl(const Matcher *M) const override;
|
|
};
|
|
|
|
/// CheckFoldableChainNodeMatcher - This checks to see if the current node
|
|
/// (which defines a chain operand) is safe to fold into a larger pattern.
|
|
class CheckFoldableChainNodeMatcher : public Matcher {
|
|
public:
|
|
CheckFoldableChainNodeMatcher()
|
|
: Matcher(CheckFoldableChainNode) {}
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CheckFoldableChainNode;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override { return true; }
|
|
};
|
|
|
|
/// EmitIntegerMatcher - This creates a new TargetConstant.
|
|
class EmitIntegerMatcher : public Matcher {
|
|
int64_t Val;
|
|
MVT::SimpleValueType VT;
|
|
public:
|
|
EmitIntegerMatcher(int64_t val, MVT::SimpleValueType vt)
|
|
: Matcher(EmitInteger), Val(val), VT(vt) {}
|
|
|
|
int64_t getValue() const { return Val; }
|
|
MVT::SimpleValueType getVT() const { return VT; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == EmitInteger;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<EmitIntegerMatcher>(M)->Val == Val &&
|
|
cast<EmitIntegerMatcher>(M)->VT == VT;
|
|
}
|
|
};
|
|
|
|
/// EmitStringIntegerMatcher - A target constant whose value is represented
|
|
/// by a string.
|
|
class EmitStringIntegerMatcher : public Matcher {
|
|
std::string Val;
|
|
MVT::SimpleValueType VT;
|
|
public:
|
|
EmitStringIntegerMatcher(const std::string &val, MVT::SimpleValueType vt)
|
|
: Matcher(EmitStringInteger), Val(val), VT(vt) {}
|
|
|
|
const std::string &getValue() const { return Val; }
|
|
MVT::SimpleValueType getVT() const { return VT; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == EmitStringInteger;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<EmitStringIntegerMatcher>(M)->Val == Val &&
|
|
cast<EmitStringIntegerMatcher>(M)->VT == VT;
|
|
}
|
|
};
|
|
|
|
/// EmitRegisterMatcher - This creates a new TargetConstant.
|
|
class EmitRegisterMatcher : public Matcher {
|
|
/// Reg - The def for the register that we're emitting. If this is null, then
|
|
/// this is a reference to zero_reg.
|
|
const CodeGenRegister *Reg;
|
|
MVT::SimpleValueType VT;
|
|
public:
|
|
EmitRegisterMatcher(const CodeGenRegister *reg, MVT::SimpleValueType vt)
|
|
: Matcher(EmitRegister), Reg(reg), VT(vt) {}
|
|
|
|
const CodeGenRegister *getReg() const { return Reg; }
|
|
MVT::SimpleValueType getVT() const { return VT; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == EmitRegister;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<EmitRegisterMatcher>(M)->Reg == Reg &&
|
|
cast<EmitRegisterMatcher>(M)->VT == VT;
|
|
}
|
|
};
|
|
|
|
/// EmitConvertToTargetMatcher - Emit an operation that reads a specified
|
|
/// recorded node and converts it from being a ISD::Constant to
|
|
/// ISD::TargetConstant, likewise for ConstantFP.
|
|
class EmitConvertToTargetMatcher : public Matcher {
|
|
unsigned Slot;
|
|
public:
|
|
EmitConvertToTargetMatcher(unsigned slot)
|
|
: Matcher(EmitConvertToTarget), Slot(slot) {}
|
|
|
|
unsigned getSlot() const { return Slot; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == EmitConvertToTarget;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<EmitConvertToTargetMatcher>(M)->Slot == Slot;
|
|
}
|
|
};
|
|
|
|
/// EmitMergeInputChainsMatcher - Emit a node that merges a list of input
|
|
/// chains together with a token factor. The list of nodes are the nodes in the
|
|
/// matched pattern that have chain input/outputs. This node adds all input
|
|
/// chains of these nodes if they are not themselves a node in the pattern.
|
|
class EmitMergeInputChainsMatcher : public Matcher {
|
|
SmallVector<unsigned, 3> ChainNodes;
|
|
public:
|
|
EmitMergeInputChainsMatcher(ArrayRef<unsigned> nodes)
|
|
: Matcher(EmitMergeInputChains), ChainNodes(nodes.begin(), nodes.end()) {}
|
|
|
|
unsigned getNumNodes() const { return ChainNodes.size(); }
|
|
|
|
unsigned getNode(unsigned i) const {
|
|
assert(i < ChainNodes.size());
|
|
return ChainNodes[i];
|
|
}
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == EmitMergeInputChains;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<EmitMergeInputChainsMatcher>(M)->ChainNodes == ChainNodes;
|
|
}
|
|
};
|
|
|
|
/// EmitCopyToRegMatcher - Emit a CopyToReg node from a value to a physreg,
|
|
/// pushing the chain and glue results.
|
|
///
|
|
class EmitCopyToRegMatcher : public Matcher {
|
|
unsigned SrcSlot; // Value to copy into the physreg.
|
|
const CodeGenRegister *DestPhysReg;
|
|
|
|
public:
|
|
EmitCopyToRegMatcher(unsigned srcSlot,
|
|
const CodeGenRegister *destPhysReg)
|
|
: Matcher(EmitCopyToReg), SrcSlot(srcSlot), DestPhysReg(destPhysReg) {}
|
|
|
|
unsigned getSrcSlot() const { return SrcSlot; }
|
|
const CodeGenRegister *getDestPhysReg() const { return DestPhysReg; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == EmitCopyToReg;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<EmitCopyToRegMatcher>(M)->SrcSlot == SrcSlot &&
|
|
cast<EmitCopyToRegMatcher>(M)->DestPhysReg == DestPhysReg;
|
|
}
|
|
};
|
|
|
|
|
|
|
|
/// EmitNodeXFormMatcher - Emit an operation that runs an SDNodeXForm on a
|
|
/// recorded node and records the result.
|
|
class EmitNodeXFormMatcher : public Matcher {
|
|
unsigned Slot;
|
|
Record *NodeXForm;
|
|
public:
|
|
EmitNodeXFormMatcher(unsigned slot, Record *nodeXForm)
|
|
: Matcher(EmitNodeXForm), Slot(slot), NodeXForm(nodeXForm) {}
|
|
|
|
unsigned getSlot() const { return Slot; }
|
|
Record *getNodeXForm() const { return NodeXForm; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == EmitNodeXForm;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<EmitNodeXFormMatcher>(M)->Slot == Slot &&
|
|
cast<EmitNodeXFormMatcher>(M)->NodeXForm == NodeXForm;
|
|
}
|
|
};
|
|
|
|
/// EmitNodeMatcherCommon - Common class shared between EmitNode and
|
|
/// MorphNodeTo.
|
|
class EmitNodeMatcherCommon : public Matcher {
|
|
std::string OpcodeName;
|
|
const SmallVector<MVT::SimpleValueType, 3> VTs;
|
|
const SmallVector<unsigned, 6> Operands;
|
|
bool HasChain, HasInGlue, HasOutGlue, HasMemRefs;
|
|
|
|
/// NumFixedArityOperands - If this is a fixed arity node, this is set to -1.
|
|
/// If this is a varidic node, this is set to the number of fixed arity
|
|
/// operands in the root of the pattern. The rest are appended to this node.
|
|
int NumFixedArityOperands;
|
|
public:
|
|
EmitNodeMatcherCommon(const std::string &opcodeName,
|
|
ArrayRef<MVT::SimpleValueType> vts,
|
|
ArrayRef<unsigned> operands,
|
|
bool hasChain, bool hasInGlue, bool hasOutGlue,
|
|
bool hasmemrefs,
|
|
int numfixedarityoperands, bool isMorphNodeTo)
|
|
: Matcher(isMorphNodeTo ? MorphNodeTo : EmitNode), OpcodeName(opcodeName),
|
|
VTs(vts.begin(), vts.end()), Operands(operands.begin(), operands.end()),
|
|
HasChain(hasChain), HasInGlue(hasInGlue), HasOutGlue(hasOutGlue),
|
|
HasMemRefs(hasmemrefs), NumFixedArityOperands(numfixedarityoperands) {}
|
|
|
|
const std::string &getOpcodeName() const { return OpcodeName; }
|
|
|
|
unsigned getNumVTs() const { return VTs.size(); }
|
|
MVT::SimpleValueType getVT(unsigned i) const {
|
|
assert(i < VTs.size());
|
|
return VTs[i];
|
|
}
|
|
|
|
unsigned getNumOperands() const { return Operands.size(); }
|
|
unsigned getOperand(unsigned i) const {
|
|
assert(i < Operands.size());
|
|
return Operands[i];
|
|
}
|
|
|
|
const SmallVectorImpl<MVT::SimpleValueType> &getVTList() const { return VTs; }
|
|
const SmallVectorImpl<unsigned> &getOperandList() const { return Operands; }
|
|
|
|
|
|
bool hasChain() const { return HasChain; }
|
|
bool hasInFlag() const { return HasInGlue; }
|
|
bool hasOutFlag() const { return HasOutGlue; }
|
|
bool hasMemRefs() const { return HasMemRefs; }
|
|
int getNumFixedArityOperands() const { return NumFixedArityOperands; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == EmitNode || N->getKind() == MorphNodeTo;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override;
|
|
};
|
|
|
|
/// EmitNodeMatcher - This signals a successful match and generates a node.
|
|
class EmitNodeMatcher : public EmitNodeMatcherCommon {
|
|
void anchor() override;
|
|
unsigned FirstResultSlot;
|
|
public:
|
|
EmitNodeMatcher(const std::string &opcodeName,
|
|
ArrayRef<MVT::SimpleValueType> vts,
|
|
ArrayRef<unsigned> operands,
|
|
bool hasChain, bool hasInFlag, bool hasOutFlag,
|
|
bool hasmemrefs,
|
|
int numfixedarityoperands, unsigned firstresultslot)
|
|
: EmitNodeMatcherCommon(opcodeName, vts, operands, hasChain,
|
|
hasInFlag, hasOutFlag, hasmemrefs,
|
|
numfixedarityoperands, false),
|
|
FirstResultSlot(firstresultslot) {}
|
|
|
|
unsigned getFirstResultSlot() const { return FirstResultSlot; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == EmitNode;
|
|
}
|
|
|
|
};
|
|
|
|
class MorphNodeToMatcher : public EmitNodeMatcherCommon {
|
|
void anchor() override;
|
|
const PatternToMatch &Pattern;
|
|
public:
|
|
MorphNodeToMatcher(const std::string &opcodeName,
|
|
ArrayRef<MVT::SimpleValueType> vts,
|
|
ArrayRef<unsigned> operands,
|
|
bool hasChain, bool hasInFlag, bool hasOutFlag,
|
|
bool hasmemrefs,
|
|
int numfixedarityoperands, const PatternToMatch &pattern)
|
|
: EmitNodeMatcherCommon(opcodeName, vts, operands, hasChain,
|
|
hasInFlag, hasOutFlag, hasmemrefs,
|
|
numfixedarityoperands, true),
|
|
Pattern(pattern) {
|
|
}
|
|
|
|
const PatternToMatch &getPattern() const { return Pattern; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == MorphNodeTo;
|
|
}
|
|
};
|
|
|
|
/// CompleteMatchMatcher - Complete a match by replacing the results of the
|
|
/// pattern with the newly generated nodes. This also prints a comment
|
|
/// indicating the source and dest patterns.
|
|
class CompleteMatchMatcher : public Matcher {
|
|
SmallVector<unsigned, 2> Results;
|
|
const PatternToMatch &Pattern;
|
|
public:
|
|
CompleteMatchMatcher(ArrayRef<unsigned> results,
|
|
const PatternToMatch &pattern)
|
|
: Matcher(CompleteMatch), Results(results.begin(), results.end()),
|
|
Pattern(pattern) {}
|
|
|
|
unsigned getNumResults() const { return Results.size(); }
|
|
unsigned getResult(unsigned R) const { return Results[R]; }
|
|
const PatternToMatch &getPattern() const { return Pattern; }
|
|
|
|
static bool classof(const Matcher *N) {
|
|
return N->getKind() == CompleteMatch;
|
|
}
|
|
|
|
private:
|
|
void printImpl(raw_ostream &OS, unsigned indent) const override;
|
|
bool isEqualImpl(const Matcher *M) const override {
|
|
return cast<CompleteMatchMatcher>(M)->Results == Results &&
|
|
&cast<CompleteMatchMatcher>(M)->Pattern == &Pattern;
|
|
}
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|