This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp to llvmorg-14-init-18294-gdb01b123d012, the last commit before the upstream release/14.x branch was created. PR: 261742 MFC after: 2 weeks
197 lines
5.8 KiB
C++
197 lines
5.8 KiB
C++
//===--- InfoByHwMode.h -----------------------------------------*- 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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// Classes that implement data parameterized by HW modes for instruction
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// selection. Currently it is ValueTypeByHwMode (parameterized ValueType),
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// and RegSizeInfoByHwMode (parameterized register/spill size and alignment
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// data).
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_UTILS_TABLEGEN_INFOBYHWMODE_H
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#define LLVM_UTILS_TABLEGEN_INFOBYHWMODE_H
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#include "CodeGenHwModes.h"
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#include "llvm/ADT/SmallSet.h"
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#include "llvm/Support/MachineValueType.h"
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#include <map>
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#include <string>
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namespace llvm {
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class Record;
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class raw_ostream;
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template <typename InfoT> struct InfoByHwMode;
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std::string getModeName(unsigned Mode);
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enum : unsigned {
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DefaultMode = CodeGenHwModes::DefaultMode,
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};
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template <typename InfoT>
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void union_modes(const InfoByHwMode<InfoT> &A,
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const InfoByHwMode<InfoT> &B,
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SmallVectorImpl<unsigned> &Modes) {
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SmallSet<unsigned, 4> U;
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for (const auto &P : A)
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U.insert(P.first);
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for (const auto &P : B)
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U.insert(P.first);
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// Make sure that the default mode is last on the list.
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bool HasDefault = false;
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for (unsigned M : U)
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if (M != DefaultMode)
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Modes.push_back(M);
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else
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HasDefault = true;
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if (HasDefault)
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Modes.push_back(DefaultMode);
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}
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template <typename InfoT>
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struct InfoByHwMode {
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typedef std::map<unsigned,InfoT> MapType;
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typedef typename MapType::value_type PairType;
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typedef typename MapType::iterator iterator;
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typedef typename MapType::const_iterator const_iterator;
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InfoByHwMode() = default;
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InfoByHwMode(const MapType &M) : Map(M) {}
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LLVM_ATTRIBUTE_ALWAYS_INLINE
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iterator begin() { return Map.begin(); }
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LLVM_ATTRIBUTE_ALWAYS_INLINE
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iterator end() { return Map.end(); }
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LLVM_ATTRIBUTE_ALWAYS_INLINE
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const_iterator begin() const { return Map.begin(); }
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LLVM_ATTRIBUTE_ALWAYS_INLINE
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const_iterator end() const { return Map.end(); }
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LLVM_ATTRIBUTE_ALWAYS_INLINE
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bool empty() const { return Map.empty(); }
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LLVM_ATTRIBUTE_ALWAYS_INLINE
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bool hasMode(unsigned M) const { return Map.find(M) != Map.end(); }
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LLVM_ATTRIBUTE_ALWAYS_INLINE
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bool hasDefault() const { return hasMode(DefaultMode); }
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InfoT &get(unsigned Mode) {
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if (!hasMode(Mode)) {
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assert(hasMode(DefaultMode));
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Map.insert({Mode, Map.at(DefaultMode)});
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}
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return Map.at(Mode);
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}
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const InfoT &get(unsigned Mode) const {
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auto F = Map.find(Mode);
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if (Mode != DefaultMode && F == Map.end())
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F = Map.find(DefaultMode);
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assert(F != Map.end());
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return F->second;
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}
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LLVM_ATTRIBUTE_ALWAYS_INLINE
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bool isSimple() const {
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return Map.size() == 1 && Map.begin()->first == DefaultMode;
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}
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LLVM_ATTRIBUTE_ALWAYS_INLINE
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InfoT getSimple() const {
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assert(isSimple());
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return Map.begin()->second;
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}
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void makeSimple(unsigned Mode) {
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assert(hasMode(Mode) || hasDefault());
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InfoT I = get(Mode);
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Map.clear();
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Map.insert(std::make_pair(DefaultMode, I));
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}
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protected:
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MapType Map;
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};
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struct ValueTypeByHwMode : public InfoByHwMode<MVT> {
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ValueTypeByHwMode(Record *R, const CodeGenHwModes &CGH);
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ValueTypeByHwMode(Record *R, MVT T);
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ValueTypeByHwMode(MVT T) { Map.insert({DefaultMode,T}); }
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ValueTypeByHwMode() = default;
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bool operator== (const ValueTypeByHwMode &T) const;
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bool operator< (const ValueTypeByHwMode &T) const;
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bool isValid() const {
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return !Map.empty();
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}
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MVT getType(unsigned Mode) const { return get(Mode); }
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MVT &getOrCreateTypeForMode(unsigned Mode, MVT Type);
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static StringRef getMVTName(MVT T);
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void writeToStream(raw_ostream &OS) const;
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void dump() const;
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unsigned PtrAddrSpace = std::numeric_limits<unsigned>::max();
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bool isPointer() const {
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return PtrAddrSpace != std::numeric_limits<unsigned>::max();
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}
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};
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ValueTypeByHwMode getValueTypeByHwMode(Record *Rec,
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const CodeGenHwModes &CGH);
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struct RegSizeInfo {
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unsigned RegSize;
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unsigned SpillSize;
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unsigned SpillAlignment;
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RegSizeInfo(Record *R, const CodeGenHwModes &CGH);
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RegSizeInfo() = default;
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bool operator< (const RegSizeInfo &I) const;
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bool operator== (const RegSizeInfo &I) const {
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return std::tie(RegSize, SpillSize, SpillAlignment) ==
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std::tie(I.RegSize, I.SpillSize, I.SpillAlignment);
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}
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bool operator!= (const RegSizeInfo &I) const {
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return !(*this == I);
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}
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bool isSubClassOf(const RegSizeInfo &I) const;
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void writeToStream(raw_ostream &OS) const;
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};
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struct RegSizeInfoByHwMode : public InfoByHwMode<RegSizeInfo> {
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RegSizeInfoByHwMode(Record *R, const CodeGenHwModes &CGH);
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RegSizeInfoByHwMode() = default;
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bool operator< (const RegSizeInfoByHwMode &VI) const;
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bool operator== (const RegSizeInfoByHwMode &VI) const;
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bool operator!= (const RegSizeInfoByHwMode &VI) const {
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return !(*this == VI);
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}
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bool isSubClassOf(const RegSizeInfoByHwMode &I) const;
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bool hasStricterSpillThan(const RegSizeInfoByHwMode &I) const;
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void writeToStream(raw_ostream &OS) const;
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void insertRegSizeForMode(unsigned Mode, RegSizeInfo Info) {
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Map.insert(std::make_pair(Mode, Info));
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}
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};
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raw_ostream &operator<<(raw_ostream &OS, const ValueTypeByHwMode &T);
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raw_ostream &operator<<(raw_ostream &OS, const RegSizeInfo &T);
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raw_ostream &operator<<(raw_ostream &OS, const RegSizeInfoByHwMode &T);
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struct EncodingInfoByHwMode : public InfoByHwMode<Record*> {
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EncodingInfoByHwMode(Record *R, const CodeGenHwModes &CGH);
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EncodingInfoByHwMode() = default;
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};
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} // namespace llvm
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#endif // LLVM_UTILS_TABLEGEN_INFOBYHWMODE_H
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