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-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"),
38 InstrInfo(*this), TLInfo(*this), TSInfo(*this),
39 FrameLowering(Subtarget), STTI(&TLInfo), VTTI(&TLInfo) { }
42 /// MSP430 Code Generator Pass Configuration Options.
43 class MSP430PassConfig : public TargetPassConfig {
45 MSP430PassConfig(MSP430TargetMachine *TM, PassManagerBase &PM)
46 : TargetPassConfig(TM, PM) {}
48 MSP430TargetMachine &getMSP430TargetMachine() const {
49 return getTM<MSP430TargetMachine>();
52 virtual bool addInstSelector();
53 virtual bool addPreEmitPass();
57 TargetPassConfig *MSP430TargetMachine::createPassConfig(PassManagerBase &PM) {
58 return new MSP430PassConfig(this, PM);
61 bool MSP430PassConfig::addInstSelector() {
62 // Install an instruction selector.
63 addPass(createMSP430ISelDag(getMSP430TargetMachine(), getOptLevel()));
67 bool MSP430PassConfig::addPreEmitPass() {
68 // Must run branch selection immediately preceding the asm printer.
69 addPass(createMSP430BranchSelectionPass());