mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-17 05:29:24 +00:00
Add skeleton of simple basic block instruction selector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54522 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
ffa45431c8
commit
381cb07544
@ -12,10 +12,10 @@
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#define DEBUG_TYPE "isel"
|
||||
#include "llvm/CodeGen/SelectionDAGISel.h"
|
||||
#include "SimpleBBISel.h"
|
||||
#include "llvm/ADT/BitVector.h"
|
||||
#include "llvm/Analysis/AliasAnalysis.h"
|
||||
#include "llvm/CodeGen/SelectionDAGISel.h"
|
||||
#include "llvm/CodeGen/ScheduleDAG.h"
|
||||
#include "llvm/Constants.h"
|
||||
#include "llvm/CallingConv.h"
|
||||
#include "llvm/DerivedTypes.h"
|
||||
@ -33,6 +33,7 @@
|
||||
#include "llvm/CodeGen/MachineJumpTableInfo.h"
|
||||
#include "llvm/CodeGen/MachineModuleInfo.h"
|
||||
#include "llvm/CodeGen/MachineRegisterInfo.h"
|
||||
#include "llvm/CodeGen/ScheduleDAG.h"
|
||||
#include "llvm/CodeGen/SchedulerRegistry.h"
|
||||
#include "llvm/CodeGen/SelectionDAG.h"
|
||||
#include "llvm/Target/TargetRegisterInfo.h"
|
||||
@ -5441,11 +5442,14 @@ void SelectionDAGISel::SelectAllBasicBlocks(Function &Fn, MachineFunction &MF,
|
||||
// each basic block.
|
||||
NodeAllocatorType NodeAllocator;
|
||||
|
||||
SimpleBBISel SISel(MF, TLI);
|
||||
std::vector<std::pair<MachineInstr*, unsigned> > PHINodesToUpdate;
|
||||
for (Function::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) {
|
||||
BasicBlock *LLVMBB = &*I;
|
||||
PHINodesToUpdate.clear();
|
||||
SelectBasicBlock(LLVMBB, MF, FuncInfo, PHINodesToUpdate, NodeAllocator);
|
||||
|
||||
if (!FastISel || !SISel.SelectBasicBlock(LLVMBB, FuncInfo.MBBMap[LLVMBB]))
|
||||
SelectBasicBlock(LLVMBB, MF, FuncInfo, PHINodesToUpdate, NodeAllocator);
|
||||
FinishBasicBlock(LLVMBB, MF, FuncInfo, PHINodesToUpdate, NodeAllocator);
|
||||
}
|
||||
}
|
||||
|
29
lib/CodeGen/SelectionDAG/SimpleBBISel.cpp
Normal file
29
lib/CodeGen/SelectionDAG/SimpleBBISel.cpp
Normal file
@ -0,0 +1,29 @@
|
||||
//===-- SimpleBBISel.cpp - Implement the SimpleBBISel class ---------------===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This implements simple basic block instruction selection. If the given
|
||||
// BasicBlock is considered "simple", i.e. all operations are supported by
|
||||
// the target and their types are legal, it does instruction directly from
|
||||
// LLVM BasicBlock to MachineInstr's.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#define DEBUG_TYPE "simple-isel"
|
||||
#include "SimpleBBISel.h"
|
||||
#include "llvm/CodeGen/MachineFunction.h"
|
||||
#include "llvm/CodeGen/MachineInstrBuilder.h"
|
||||
#include "llvm/CodeGen/SelectionDAG.h"
|
||||
using namespace llvm;
|
||||
|
||||
/// SelectBasicBlock - Try to convert a LLVM basic block into a
|
||||
/// MachineBasicBlock using simple instruction selection. Returns false if it
|
||||
/// is not able to do so.
|
||||
bool SimpleBBISel::SelectBasicBlock(BasicBlock *BB, MachineBasicBlock *MBB) {
|
||||
return false;
|
||||
}
|
45
lib/CodeGen/SelectionDAG/SimpleBBISel.h
Normal file
45
lib/CodeGen/SelectionDAG/SimpleBBISel.h
Normal file
@ -0,0 +1,45 @@
|
||||
//===-- SimpleBBISel.cpp - Definition of the SimpleBBISel class -----------===//
|
||||
//
|
||||
// The LLVM Compiler Infrastructure
|
||||
//
|
||||
// This file is distributed under the University of Illinois Open Source
|
||||
// License. See LICENSE.TXT for details.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// This file defines the SimpleBBISel class which handles simple basic block
|
||||
// instruction selection. If the given BasicBlock is considered "simple", i.e.
|
||||
// all operations are supported by the target and their types are legal, it
|
||||
// does instruction directly from LLVM BasicBlock to MachineInstr's.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef SELECTIONDAG_SIMPLEBBISEL_H
|
||||
#define SELECTIONDAG_SIMPLEBBISEL_H
|
||||
|
||||
#include "llvm/Support/Compiler.h"
|
||||
|
||||
namespace llvm {
|
||||
|
||||
class BasicBlock;
|
||||
class MachineBasicBlock;
|
||||
class MachineFunction;
|
||||
class TargetLowering;
|
||||
|
||||
class VISIBILITY_HIDDEN SimpleBBISel {
|
||||
MachineFunction &MF;
|
||||
TargetLowering &TLI;
|
||||
|
||||
public:
|
||||
explicit SimpleBBISel(MachineFunction &mf, TargetLowering &tli)
|
||||
: MF(mf), TLI(tli) {};
|
||||
|
||||
/// SelectBasicBlock - Try to convert a LLVM basic block into a
|
||||
/// MachineBasicBlock using simple instruction selection. Returns false if it
|
||||
/// is not able to do so.
|
||||
bool SelectBasicBlock(BasicBlock *BB, MachineBasicBlock *MBB);
|
||||
};
|
||||
|
||||
} // end namespace llvm.
|
||||
|
||||
#endif
|
Loading…
Reference in New Issue
Block a user