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Change MachineBasicBlock's to not be Annotations, instead they are kept as

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part of a linked list tracked by MachineFunction.  MachineBasicBlock::get
is now linear time instead of constant time, and thus is deprecated!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4337 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2002-10-28 05:30:46 +00:00
parent 07541a2711
commit d0aa0cdbc6
6 changed files with 79 additions and 48 deletions
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27
include/llvm/CodeGen/MachineBasicBlock.h
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@@ -7,31 +7,28 @@
#ifndef LLVM_CODEGEN_MACHINEBASICBLOCK_H
#define LLVM_CODEGEN_MACHINEBASICBLOCK_H
#include "llvm/Annotation.h"
#include <vector>
class BasicBlock;
class MachineInstr;
template <typename T> struct ilist_traits;
extern AnnotationID MCFBB_AID;
class MachineBasicBlock : public Annotation {
class MachineBasicBlock {
std::vector<MachineInstr*> Insts;
MachineBasicBlock *Prev, *Next;
BasicBlock *BB;
public:
MachineBasicBlock() : Annotation(MCFBB_AID) {}
MachineBasicBlock(BasicBlock *bb = 0) : Prev(0), Next(0), BB(bb) {}
~MachineBasicBlock() {}
// Static methods to retrieve or destroy the MachineBasicBlock
// object for a given basic block.
static MachineBasicBlock& get(const BasicBlock *BB) {
return *(MachineBasicBlock*)
((Annotable*)BB)->getOrCreateAnnotation(MCFBB_AID);
}
static void destroy(const BasicBlock *BB) {
((Annotable*)BB)->deleteAnnotation(MCFBB_AID);
}
// get - This deprecated static method returns the MachineBasicBlock object
// for the specified BasicBlock.
//
static MachineBasicBlock& get(const BasicBlock *BB);
/// getBasicBlock - Return the LLVM basic block that this instance
/// corresponded to originally.
///
BasicBlock *getBasicBlock() const { return BB; }
typedef std::vector<MachineInstr*>::iterator iterator;
typedef std::vector<MachineInstr*>::const_iterator const_iterator;