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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130688 91177308-0d34-0410-b5e6-96231b3b80d8
761 lines
24 KiB
C++
761 lines
24 KiB
C++
//===- llvm/CodeGen/SlotIndexes.h - Slot indexes representation -*- 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 implements SlotIndex and related classes. The purpuse of SlotIndex
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// is to describe a position at which a register can become live, or cease to
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// be live.
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//
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// SlotIndex is mostly a proxy for entries of the SlotIndexList, a class which
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// is held is LiveIntervals and provides the real numbering. This allows
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// LiveIntervals to perform largely transparent renumbering.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_SLOTINDEXES_H
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#define LLVM_CODEGEN_SLOTINDEXES_H
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/ADT/PointerIntPair.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/Support/Allocator.h"
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namespace llvm {
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/// This class represents an entry in the slot index list held in the
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/// SlotIndexes pass. It should not be used directly. See the
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/// SlotIndex & SlotIndexes classes for the public interface to this
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/// information.
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class IndexListEntry {
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IndexListEntry *next, *prev;
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MachineInstr *mi;
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unsigned index;
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public:
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IndexListEntry(MachineInstr *mi, unsigned index) : mi(mi), index(index) {}
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MachineInstr* getInstr() const { return mi; }
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void setInstr(MachineInstr *mi) {
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this->mi = mi;
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}
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unsigned getIndex() const { return index; }
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void setIndex(unsigned index) {
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this->index = index;
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}
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IndexListEntry* getNext() { return next; }
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const IndexListEntry* getNext() const { return next; }
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void setNext(IndexListEntry *next) {
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this->next = next;
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}
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IndexListEntry* getPrev() { return prev; }
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const IndexListEntry* getPrev() const { return prev; }
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void setPrev(IndexListEntry *prev) {
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this->prev = prev;
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}
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};
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// Specialize PointerLikeTypeTraits for IndexListEntry.
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template <>
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class PointerLikeTypeTraits<IndexListEntry*> {
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public:
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static inline void* getAsVoidPointer(IndexListEntry *p) {
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return p;
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}
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static inline IndexListEntry* getFromVoidPointer(void *p) {
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return static_cast<IndexListEntry*>(p);
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}
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enum { NumLowBitsAvailable = 3 };
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};
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/// SlotIndex - An opaque wrapper around machine indexes.
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class SlotIndex {
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friend class SlotIndexes;
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friend struct DenseMapInfo<SlotIndex>;
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enum Slot { LOAD, USE, DEF, STORE, NUM };
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PointerIntPair<IndexListEntry*, 2, unsigned> lie;
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SlotIndex(IndexListEntry *entry, unsigned slot)
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: lie(entry, slot) {}
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IndexListEntry& entry() const {
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assert(isValid() && "Attempt to compare reserved index.");
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return *lie.getPointer();
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}
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int getIndex() const {
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return entry().getIndex() | getSlot();
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}
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/// Returns the slot for this SlotIndex.
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Slot getSlot() const {
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return static_cast<Slot>(lie.getInt());
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}
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static inline unsigned getHashValue(const SlotIndex &v) {
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void *ptrVal = v.lie.getOpaqueValue();
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return (unsigned((intptr_t)ptrVal)) ^ (unsigned((intptr_t)ptrVal) >> 9);
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}
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public:
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enum {
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/// The default distance between instructions as returned by distance().
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/// This may vary as instructions are inserted and removed.
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InstrDist = 4*NUM
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};
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static inline SlotIndex getEmptyKey() {
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return SlotIndex(0, 1);
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}
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static inline SlotIndex getTombstoneKey() {
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return SlotIndex(0, 2);
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}
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/// Construct an invalid index.
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SlotIndex() : lie(0, 0) {}
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// Construct a new slot index from the given one, and set the slot.
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SlotIndex(const SlotIndex &li, Slot s)
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: lie(&li.entry(), unsigned(s)) {
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assert(lie.getPointer() != 0 &&
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"Attempt to construct index with 0 pointer.");
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}
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/// Returns true if this is a valid index. Invalid indicies do
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/// not point into an index table, and cannot be compared.
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bool isValid() const {
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return lie.getPointer();
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}
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/// Print this index to the given raw_ostream.
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void print(raw_ostream &os) const;
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/// Dump this index to stderr.
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void dump() const;
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/// Compare two SlotIndex objects for equality.
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bool operator==(SlotIndex other) const {
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return lie == other.lie;
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}
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/// Compare two SlotIndex objects for inequality.
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bool operator!=(SlotIndex other) const {
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return lie != other.lie;
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}
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/// Compare two SlotIndex objects. Return true if the first index
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/// is strictly lower than the second.
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bool operator<(SlotIndex other) const {
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return getIndex() < other.getIndex();
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}
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/// Compare two SlotIndex objects. Return true if the first index
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/// is lower than, or equal to, the second.
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bool operator<=(SlotIndex other) const {
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return getIndex() <= other.getIndex();
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}
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/// Compare two SlotIndex objects. Return true if the first index
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/// is greater than the second.
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bool operator>(SlotIndex other) const {
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return getIndex() > other.getIndex();
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}
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/// Compare two SlotIndex objects. Return true if the first index
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/// is greater than, or equal to, the second.
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bool operator>=(SlotIndex other) const {
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return getIndex() >= other.getIndex();
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}
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/// isSameInstr - Return true if A and B refer to the same instruction.
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static bool isSameInstr(SlotIndex A, SlotIndex B) {
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return A.lie.getPointer() == B.lie.getPointer();
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}
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/// Return the distance from this index to the given one.
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int distance(SlotIndex other) const {
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return other.getIndex() - getIndex();
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}
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/// isLoad - Return true if this is a LOAD slot.
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bool isLoad() const {
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return getSlot() == LOAD;
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}
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/// isDef - Return true if this is a DEF slot.
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bool isDef() const {
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return getSlot() == DEF;
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}
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/// isUse - Return true if this is a USE slot.
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bool isUse() const {
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return getSlot() == USE;
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}
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/// isStore - Return true if this is a STORE slot.
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bool isStore() const {
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return getSlot() == STORE;
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}
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/// Returns the base index for associated with this index. The base index
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/// is the one associated with the LOAD slot for the instruction pointed to
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/// by this index.
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SlotIndex getBaseIndex() const {
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return getLoadIndex();
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}
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/// Returns the boundary index for associated with this index. The boundary
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/// index is the one associated with the LOAD slot for the instruction
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/// pointed to by this index.
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SlotIndex getBoundaryIndex() const {
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return getStoreIndex();
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}
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/// Returns the index of the LOAD slot for the instruction pointed to by
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/// this index.
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SlotIndex getLoadIndex() const {
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return SlotIndex(&entry(), SlotIndex::LOAD);
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}
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/// Returns the index of the USE slot for the instruction pointed to by
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/// this index.
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SlotIndex getUseIndex() const {
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return SlotIndex(&entry(), SlotIndex::USE);
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}
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/// Returns the index of the DEF slot for the instruction pointed to by
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/// this index.
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SlotIndex getDefIndex() const {
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return SlotIndex(&entry(), SlotIndex::DEF);
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}
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/// Returns the index of the STORE slot for the instruction pointed to by
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/// this index.
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SlotIndex getStoreIndex() const {
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return SlotIndex(&entry(), SlotIndex::STORE);
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}
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/// Returns the next slot in the index list. This could be either the
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/// next slot for the instruction pointed to by this index or, if this
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/// index is a STORE, the first slot for the next instruction.
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/// WARNING: This method is considerably more expensive than the methods
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/// that return specific slots (getUseIndex(), etc). If you can - please
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/// use one of those methods.
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SlotIndex getNextSlot() const {
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Slot s = getSlot();
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if (s == SlotIndex::STORE) {
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return SlotIndex(entry().getNext(), SlotIndex::LOAD);
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}
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return SlotIndex(&entry(), s + 1);
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}
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/// Returns the next index. This is the index corresponding to the this
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/// index's slot, but for the next instruction.
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SlotIndex getNextIndex() const {
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return SlotIndex(entry().getNext(), getSlot());
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}
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/// Returns the previous slot in the index list. This could be either the
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/// previous slot for the instruction pointed to by this index or, if this
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/// index is a LOAD, the last slot for the previous instruction.
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/// WARNING: This method is considerably more expensive than the methods
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/// that return specific slots (getUseIndex(), etc). If you can - please
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/// use one of those methods.
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SlotIndex getPrevSlot() const {
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Slot s = getSlot();
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if (s == SlotIndex::LOAD) {
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return SlotIndex(entry().getPrev(), SlotIndex::STORE);
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}
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return SlotIndex(&entry(), s - 1);
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}
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/// Returns the previous index. This is the index corresponding to this
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/// index's slot, but for the previous instruction.
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SlotIndex getPrevIndex() const {
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return SlotIndex(entry().getPrev(), getSlot());
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}
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};
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/// DenseMapInfo specialization for SlotIndex.
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template <>
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struct DenseMapInfo<SlotIndex> {
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static inline SlotIndex getEmptyKey() {
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return SlotIndex::getEmptyKey();
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}
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static inline SlotIndex getTombstoneKey() {
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return SlotIndex::getTombstoneKey();
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}
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static inline unsigned getHashValue(const SlotIndex &v) {
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return SlotIndex::getHashValue(v);
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}
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static inline bool isEqual(const SlotIndex &LHS, const SlotIndex &RHS) {
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return (LHS == RHS);
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}
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};
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template <> struct isPodLike<SlotIndex> { static const bool value = true; };
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inline raw_ostream& operator<<(raw_ostream &os, SlotIndex li) {
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li.print(os);
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return os;
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}
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typedef std::pair<SlotIndex, MachineBasicBlock*> IdxMBBPair;
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inline bool operator<(SlotIndex V, const IdxMBBPair &IM) {
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return V < IM.first;
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}
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inline bool operator<(const IdxMBBPair &IM, SlotIndex V) {
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return IM.first < V;
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}
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struct Idx2MBBCompare {
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bool operator()(const IdxMBBPair &LHS, const IdxMBBPair &RHS) const {
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return LHS.first < RHS.first;
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}
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};
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/// SlotIndexes pass.
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///
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/// This pass assigns indexes to each instruction.
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class SlotIndexes : public MachineFunctionPass {
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private:
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MachineFunction *mf;
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IndexListEntry *indexListHead;
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unsigned functionSize;
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typedef DenseMap<const MachineInstr*, SlotIndex> Mi2IndexMap;
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Mi2IndexMap mi2iMap;
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/// MBBRanges - Map MBB number to (start, stop) indexes.
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SmallVector<std::pair<SlotIndex, SlotIndex>, 8> MBBRanges;
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/// Idx2MBBMap - Sorted list of pairs of index of first instruction
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/// and MBB id.
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SmallVector<IdxMBBPair, 8> idx2MBBMap;
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// IndexListEntry allocator.
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BumpPtrAllocator ileAllocator;
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IndexListEntry* createEntry(MachineInstr *mi, unsigned index) {
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IndexListEntry *entry =
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static_cast<IndexListEntry*>(
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ileAllocator.Allocate(sizeof(IndexListEntry),
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alignOf<IndexListEntry>()));
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new (entry) IndexListEntry(mi, index);
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return entry;
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}
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void initList() {
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assert(indexListHead == 0 && "Zero entry non-null at initialisation.");
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indexListHead = createEntry(0, ~0U);
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indexListHead->setNext(0);
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indexListHead->setPrev(indexListHead);
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}
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void clearList() {
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indexListHead = 0;
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ileAllocator.Reset();
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}
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IndexListEntry* getTail() {
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assert(indexListHead != 0 && "Call to getTail on uninitialized list.");
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return indexListHead->getPrev();
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}
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const IndexListEntry* getTail() const {
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assert(indexListHead != 0 && "Call to getTail on uninitialized list.");
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return indexListHead->getPrev();
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}
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// Returns true if the index list is empty.
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bool empty() const { return (indexListHead == getTail()); }
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IndexListEntry* front() {
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assert(!empty() && "front() called on empty index list.");
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return indexListHead;
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}
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const IndexListEntry* front() const {
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assert(!empty() && "front() called on empty index list.");
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return indexListHead;
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}
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IndexListEntry* back() {
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assert(!empty() && "back() called on empty index list.");
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return getTail()->getPrev();
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}
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const IndexListEntry* back() const {
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assert(!empty() && "back() called on empty index list.");
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return getTail()->getPrev();
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}
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/// Insert a new entry before itr.
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void insert(IndexListEntry *itr, IndexListEntry *val) {
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assert(itr != 0 && "itr should not be null.");
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IndexListEntry *prev = itr->getPrev();
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val->setNext(itr);
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val->setPrev(prev);
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if (itr != indexListHead) {
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prev->setNext(val);
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}
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else {
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indexListHead = val;
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}
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itr->setPrev(val);
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}
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/// Push a new entry on to the end of the list.
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void push_back(IndexListEntry *val) {
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insert(getTail(), val);
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}
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/// Renumber locally after inserting newEntry.
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void renumberIndexes(IndexListEntry *newEntry);
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public:
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static char ID;
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SlotIndexes() : MachineFunctionPass(ID), indexListHead(0) {
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initializeSlotIndexesPass(*PassRegistry::getPassRegistry());
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}
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virtual void getAnalysisUsage(AnalysisUsage &au) const;
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virtual void releaseMemory();
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virtual bool runOnMachineFunction(MachineFunction &fn);
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/// Dump the indexes.
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void dump() const;
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/// Renumber the index list, providing space for new instructions.
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void renumberIndexes();
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/// Returns the zero index for this analysis.
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SlotIndex getZeroIndex() {
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assert(front()->getIndex() == 0 && "First index is not 0?");
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return SlotIndex(front(), 0);
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}
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/// Returns the base index of the last slot in this analysis.
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SlotIndex getLastIndex() {
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return SlotIndex(back(), 0);
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}
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/// Returns the invalid index marker for this analysis.
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SlotIndex getInvalidIndex() {
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return getZeroIndex();
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}
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/// Returns the distance between the highest and lowest indexes allocated
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/// so far.
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unsigned getIndexesLength() const {
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assert(front()->getIndex() == 0 &&
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"Initial index isn't zero?");
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return back()->getIndex();
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}
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/// Returns the number of instructions in the function.
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unsigned getFunctionSize() const {
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return functionSize;
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}
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/// Returns true if the given machine instr is mapped to an index,
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/// otherwise returns false.
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bool hasIndex(const MachineInstr *instr) const {
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return (mi2iMap.find(instr) != mi2iMap.end());
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}
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/// Returns the base index for the given instruction.
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SlotIndex getInstructionIndex(const MachineInstr *instr) const {
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Mi2IndexMap::const_iterator itr = mi2iMap.find(instr);
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assert(itr != mi2iMap.end() && "Instruction not found in maps.");
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return itr->second;
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}
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/// Returns the instruction for the given index, or null if the given
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/// index has no instruction associated with it.
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MachineInstr* getInstructionFromIndex(SlotIndex index) const {
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return index.isValid() ? index.entry().getInstr() : 0;
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}
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/// Returns the next non-null index.
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SlotIndex getNextNonNullIndex(SlotIndex index) {
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SlotIndex nextNonNull = index.getNextIndex();
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while (&nextNonNull.entry() != getTail() &&
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getInstructionFromIndex(nextNonNull) == 0) {
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nextNonNull = nextNonNull.getNextIndex();
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}
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return nextNonNull;
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}
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/// getIndexBefore - Returns the index of the last indexed instruction
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/// before MI, or the the start index of its basic block.
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/// MI is not required to have an index.
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SlotIndex getIndexBefore(const MachineInstr *MI) const {
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const MachineBasicBlock *MBB = MI->getParent();
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assert(MBB && "MI must be inserted inna basic block");
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MachineBasicBlock::const_iterator I = MI, B = MBB->begin();
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for (;;) {
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if (I == B)
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return getMBBStartIdx(MBB);
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--I;
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Mi2IndexMap::const_iterator MapItr = mi2iMap.find(I);
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if (MapItr != mi2iMap.end())
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return MapItr->second;
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}
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}
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/// getIndexAfter - Returns the index of the first indexed instruction
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/// after MI, or the end index of its basic block.
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/// MI is not required to have an index.
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SlotIndex getIndexAfter(const MachineInstr *MI) const {
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const MachineBasicBlock *MBB = MI->getParent();
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assert(MBB && "MI must be inserted inna basic block");
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MachineBasicBlock::const_iterator I = MI, E = MBB->end();
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for (;;) {
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++I;
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if (I == E)
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return getMBBEndIdx(MBB);
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Mi2IndexMap::const_iterator MapItr = mi2iMap.find(I);
|
|
if (MapItr != mi2iMap.end())
|
|
return MapItr->second;
|
|
}
|
|
}
|
|
|
|
/// Return the (start,end) range of the given basic block number.
|
|
const std::pair<SlotIndex, SlotIndex> &
|
|
getMBBRange(unsigned Num) const {
|
|
return MBBRanges[Num];
|
|
}
|
|
|
|
/// Return the (start,end) range of the given basic block.
|
|
const std::pair<SlotIndex, SlotIndex> &
|
|
getMBBRange(const MachineBasicBlock *MBB) const {
|
|
return getMBBRange(MBB->getNumber());
|
|
}
|
|
|
|
/// Returns the first index in the given basic block number.
|
|
SlotIndex getMBBStartIdx(unsigned Num) const {
|
|
return getMBBRange(Num).first;
|
|
}
|
|
|
|
/// Returns the first index in the given basic block.
|
|
SlotIndex getMBBStartIdx(const MachineBasicBlock *mbb) const {
|
|
return getMBBRange(mbb).first;
|
|
}
|
|
|
|
/// Returns the last index in the given basic block number.
|
|
SlotIndex getMBBEndIdx(unsigned Num) const {
|
|
return getMBBRange(Num).second;
|
|
}
|
|
|
|
/// Returns the last index in the given basic block.
|
|
SlotIndex getMBBEndIdx(const MachineBasicBlock *mbb) const {
|
|
return getMBBRange(mbb).second;
|
|
}
|
|
|
|
/// Returns the basic block which the given index falls in.
|
|
MachineBasicBlock* getMBBFromIndex(SlotIndex index) const {
|
|
if (MachineInstr *MI = getInstructionFromIndex(index))
|
|
return MI->getParent();
|
|
SmallVectorImpl<IdxMBBPair>::const_iterator I =
|
|
std::lower_bound(idx2MBBMap.begin(), idx2MBBMap.end(), index);
|
|
// Take the pair containing the index
|
|
SmallVectorImpl<IdxMBBPair>::const_iterator J =
|
|
((I != idx2MBBMap.end() && I->first > index) ||
|
|
(I == idx2MBBMap.end() && idx2MBBMap.size()>0)) ? (I-1): I;
|
|
|
|
assert(J != idx2MBBMap.end() && J->first <= index &&
|
|
index < getMBBEndIdx(J->second) &&
|
|
"index does not correspond to an MBB");
|
|
return J->second;
|
|
}
|
|
|
|
bool findLiveInMBBs(SlotIndex start, SlotIndex end,
|
|
SmallVectorImpl<MachineBasicBlock*> &mbbs) const {
|
|
SmallVectorImpl<IdxMBBPair>::const_iterator itr =
|
|
std::lower_bound(idx2MBBMap.begin(), idx2MBBMap.end(), start);
|
|
bool resVal = false;
|
|
|
|
while (itr != idx2MBBMap.end()) {
|
|
if (itr->first >= end)
|
|
break;
|
|
mbbs.push_back(itr->second);
|
|
resVal = true;
|
|
++itr;
|
|
}
|
|
return resVal;
|
|
}
|
|
|
|
/// Returns the MBB covering the given range, or null if the range covers
|
|
/// more than one basic block.
|
|
MachineBasicBlock* getMBBCoveringRange(SlotIndex start, SlotIndex end) const {
|
|
|
|
assert(start < end && "Backwards ranges not allowed.");
|
|
|
|
SmallVectorImpl<IdxMBBPair>::const_iterator itr =
|
|
std::lower_bound(idx2MBBMap.begin(), idx2MBBMap.end(), start);
|
|
|
|
if (itr == idx2MBBMap.end()) {
|
|
itr = prior(itr);
|
|
return itr->second;
|
|
}
|
|
|
|
// Check that we don't cross the boundary into this block.
|
|
if (itr->first < end)
|
|
return 0;
|
|
|
|
itr = prior(itr);
|
|
|
|
if (itr->first <= start)
|
|
return itr->second;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/// Insert the given machine instruction into the mapping. Returns the
|
|
/// assigned index.
|
|
/// If Late is set and there are null indexes between mi's neighboring
|
|
/// instructions, create the new index after the null indexes instead of
|
|
/// before them.
|
|
SlotIndex insertMachineInstrInMaps(MachineInstr *mi, bool Late = false) {
|
|
assert(mi2iMap.find(mi) == mi2iMap.end() && "Instr already indexed.");
|
|
// Numbering DBG_VALUE instructions could cause code generation to be
|
|
// affected by debug information.
|
|
assert(!mi->isDebugValue() && "Cannot number DBG_VALUE instructions.");
|
|
|
|
assert(mi->getParent() != 0 && "Instr must be added to function.");
|
|
|
|
// Get the entries where mi should be inserted.
|
|
IndexListEntry *prevEntry, *nextEntry;
|
|
if (Late) {
|
|
// Insert mi's index immediately before the following instruction.
|
|
nextEntry = &getIndexAfter(mi).entry();
|
|
prevEntry = nextEntry->getPrev();
|
|
} else {
|
|
// Insert mi's index immediately after the preceeding instruction.
|
|
prevEntry = &getIndexBefore(mi).entry();
|
|
nextEntry = prevEntry->getNext();
|
|
}
|
|
|
|
// Get a number for the new instr, or 0 if there's no room currently.
|
|
// In the latter case we'll force a renumber later.
|
|
unsigned dist = ((nextEntry->getIndex() - prevEntry->getIndex())/2) & ~3u;
|
|
unsigned newNumber = prevEntry->getIndex() + dist;
|
|
|
|
// Insert a new list entry for mi.
|
|
IndexListEntry *newEntry = createEntry(mi, newNumber);
|
|
insert(nextEntry, newEntry);
|
|
|
|
// Renumber locally if we need to.
|
|
if (dist == 0)
|
|
renumberIndexes(newEntry);
|
|
|
|
SlotIndex newIndex(newEntry, SlotIndex::LOAD);
|
|
mi2iMap.insert(std::make_pair(mi, newIndex));
|
|
return newIndex;
|
|
}
|
|
|
|
/// Remove the given machine instruction from the mapping.
|
|
void removeMachineInstrFromMaps(MachineInstr *mi) {
|
|
// remove index -> MachineInstr and
|
|
// MachineInstr -> index mappings
|
|
Mi2IndexMap::iterator mi2iItr = mi2iMap.find(mi);
|
|
if (mi2iItr != mi2iMap.end()) {
|
|
IndexListEntry *miEntry(&mi2iItr->second.entry());
|
|
assert(miEntry->getInstr() == mi && "Instruction indexes broken.");
|
|
// FIXME: Eventually we want to actually delete these indexes.
|
|
miEntry->setInstr(0);
|
|
mi2iMap.erase(mi2iItr);
|
|
}
|
|
}
|
|
|
|
/// ReplaceMachineInstrInMaps - Replacing a machine instr with a new one in
|
|
/// maps used by register allocator.
|
|
void replaceMachineInstrInMaps(MachineInstr *mi, MachineInstr *newMI) {
|
|
Mi2IndexMap::iterator mi2iItr = mi2iMap.find(mi);
|
|
if (mi2iItr == mi2iMap.end())
|
|
return;
|
|
SlotIndex replaceBaseIndex = mi2iItr->second;
|
|
IndexListEntry *miEntry(&replaceBaseIndex.entry());
|
|
assert(miEntry->getInstr() == mi &&
|
|
"Mismatched instruction in index tables.");
|
|
miEntry->setInstr(newMI);
|
|
mi2iMap.erase(mi2iItr);
|
|
mi2iMap.insert(std::make_pair(newMI, replaceBaseIndex));
|
|
}
|
|
|
|
/// Add the given MachineBasicBlock into the maps.
|
|
void insertMBBInMaps(MachineBasicBlock *mbb) {
|
|
MachineFunction::iterator nextMBB =
|
|
llvm::next(MachineFunction::iterator(mbb));
|
|
IndexListEntry *startEntry = createEntry(0, 0);
|
|
IndexListEntry *stopEntry = createEntry(0, 0);
|
|
IndexListEntry *nextEntry = 0;
|
|
|
|
if (nextMBB == mbb->getParent()->end()) {
|
|
nextEntry = getTail();
|
|
} else {
|
|
nextEntry = &getMBBStartIdx(nextMBB).entry();
|
|
}
|
|
|
|
insert(nextEntry, startEntry);
|
|
insert(nextEntry, stopEntry);
|
|
|
|
SlotIndex startIdx(startEntry, SlotIndex::LOAD);
|
|
SlotIndex endIdx(nextEntry, SlotIndex::LOAD);
|
|
|
|
assert(unsigned(mbb->getNumber()) == MBBRanges.size() &&
|
|
"Blocks must be added in order");
|
|
MBBRanges.push_back(std::make_pair(startIdx, endIdx));
|
|
|
|
idx2MBBMap.push_back(IdxMBBPair(startIdx, mbb));
|
|
|
|
renumberIndexes();
|
|
std::sort(idx2MBBMap.begin(), idx2MBBMap.end(), Idx2MBBCompare());
|
|
}
|
|
|
|
};
|
|
|
|
|
|
// Specialize IntervalMapInfo for half-open slot index intervals.
|
|
template <typename> struct IntervalMapInfo;
|
|
template <> struct IntervalMapInfo<SlotIndex> {
|
|
static inline bool startLess(const SlotIndex &x, const SlotIndex &a) {
|
|
return x < a;
|
|
}
|
|
static inline bool stopLess(const SlotIndex &b, const SlotIndex &x) {
|
|
return b <= x;
|
|
}
|
|
static inline bool adjacent(const SlotIndex &a, const SlotIndex &b) {
|
|
return a == b;
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
#endif // LLVM_CODEGEN_LIVEINDEX_H
|