1 //===-- MSP430TargetMachine.cpp - Define TargetMachine for MSP430 ---------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Top-level implementation for the MSP430 target.
12 //===----------------------------------------------------------------------===//
14 #include "MSP430TargetMachine.h"
16 #include "llvm/CodeGen/Passes.h"
17 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
18 #include "llvm/IR/LegacyPassManager.h"
19 #include "llvm/MC/MCAsmInfo.h"
20 #include "llvm/Support/TargetRegistry.h"
23 extern "C" void LLVMInitializeMSP430Target() {
24 // Register the target.
25 RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
28 MSP430TargetMachine::MSP430TargetMachine(const Target &T, const Triple &TT,
29 StringRef CPU, StringRef FS,
30 const TargetOptions &Options,
31 Reloc::Model RM, CodeModel::Model CM,
33 : LLVMTargetMachine(T, "e-m:e-p:16:16-i32:16:32-a:16-n8:16", TT, CPU, FS,
35 TLOF(make_unique<TargetLoweringObjectFileELF>()),
36 // FIXME: Check DataLayout string.
37 Subtarget(TT, CPU, FS, *this) {
41 MSP430TargetMachine::~MSP430TargetMachine() {}
44 /// MSP430 Code Generator Pass Configuration Options.
45 class MSP430PassConfig : public TargetPassConfig {
47 MSP430PassConfig(MSP430TargetMachine *TM, PassManagerBase &PM)
48 : TargetPassConfig(TM, PM) {}
50 MSP430TargetMachine &getMSP430TargetMachine() const {
51 return getTM<MSP430TargetMachine>();
54 bool addInstSelector() override;
55 void addPreEmitPass() override;
59 TargetPassConfig *MSP430TargetMachine::createPassConfig(PassManagerBase &PM) {
60 return new MSP430PassConfig(this, PM);
63 bool MSP430PassConfig::addInstSelector() {
64 // Install an instruction selector.
65 addPass(createMSP430ISelDag(getMSP430TargetMachine(), getOptLevel()));
69 void MSP430PassConfig::addPreEmitPass() {
70 // Must run branch selection immediately preceding the asm printer.
71 addPass(createMSP430BranchSelectionPass(), false);