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/MC/MCAsmInfo.h"
18 #include "llvm/PassManager.h"
19 #include "llvm/Support/TargetRegistry.h"
22 extern "C" void LLVMInitializeMSP430Target() {
23 // Register the target.
24 RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
27 MSP430TargetMachine::MSP430TargetMachine(const Target &T,
31 const TargetOptions &Options,
32 Reloc::Model RM, CodeModel::Model CM,
34 : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
35 Subtarget(TT, CPU, FS),
36 // FIXME: Check DataLayout string.
37 DL("e-m:e-p:16:16-i32:16:32-n8:16"),
38 InstrInfo(*this), TLInfo(*this), TSInfo(*this),
39 FrameLowering(Subtarget) {
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 bool 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 bool MSP430PassConfig::addPreEmitPass() {
70 // Must run branch selection immediately preceding the asm printer.
71 addPass(createMSP430BranchSelectionPass());