mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-26 06:29:20 +00:00
d858e90f03
const_casts, and it reinforces the design of the Target classes being immutable. SelectionDAGISel::IsLegalToFold is now a static member function, because PIC16 uses it in an unconventional way. There is more room for API cleanup here. And PIC16's AsmPrinter no longer uses TargetLowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101635 91177308-0d34-0410-b5e6-96231b3b80d8
61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
//===-- PIC16ISelDAGToDAG.cpp - A dag to dag inst selector for PIC16 ------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines an instruction selector for the PIC16 target.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#define DEBUG_TYPE "pic16-isel"
|
|
|
|
#include "PIC16.h"
|
|
#include "PIC16RegisterInfo.h"
|
|
#include "PIC16TargetMachine.h"
|
|
#include "PIC16MachineFunctionInfo.h"
|
|
#include "llvm/CodeGen/SelectionDAGISel.h"
|
|
#include "llvm/Support/Compiler.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Intrinsics.h"
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
class VISIBILITY_HIDDEN PIC16DAGToDAGISel : public SelectionDAGISel {
|
|
|
|
/// TM - Keep a reference to PIC16TargetMachine.
|
|
const PIC16TargetMachine &TM;
|
|
|
|
/// PIC16Lowering - This object fully describes how to lower LLVM code to an
|
|
/// PIC16-specific SelectionDAG.
|
|
const PIC16TargetLowering &PIC16Lowering;
|
|
|
|
public:
|
|
explicit PIC16DAGToDAGISel(PIC16TargetMachine &tm) :
|
|
SelectionDAGISel(tm),
|
|
TM(tm), PIC16Lowering(*TM.getTargetLowering()) {}
|
|
|
|
// Pass Name
|
|
virtual const char *getPassName() const {
|
|
return "PIC16 DAG->DAG Pattern Instruction Selection";
|
|
}
|
|
|
|
private:
|
|
// Include the pieces autogenerated from the target description.
|
|
#include "PIC16GenDAGISel.inc"
|
|
|
|
SDNode *Select(SDNode *N);
|
|
|
|
// Match direct address complex pattern.
|
|
bool SelectDirectAddr(SDNode *Op, SDValue N, SDValue &Address);
|
|
|
|
};
|
|
|
|
}
|
|
|