1 //===-- MSP430TargetMachine.cpp - Define TargetMachine for MSP430 ---------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // Top-level implementation for the MSP430 target.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "MSP430.h"
15 #include "MSP430TargetMachine.h"
16 #include "llvm/PassManager.h"
17 #include "llvm/CodeGen/Passes.h"
18 #include "llvm/MC/MCAsmInfo.h"
19 #include "llvm/Support/TargetRegistry.h"
20 using namespace llvm;
21
LLVMInitializeMSP430Target()22 extern "C" void LLVMInitializeMSP430Target() {
23 // Register the target.
24 RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
25 }
26
MSP430TargetMachine(const Target & T,StringRef TT,StringRef CPU,StringRef FS,Reloc::Model RM,CodeModel::Model CM)27 MSP430TargetMachine::MSP430TargetMachine(const Target &T,
28 StringRef TT,
29 StringRef CPU,
30 StringRef FS,
31 Reloc::Model RM, CodeModel::Model CM)
32 : LLVMTargetMachine(T, TT, CPU, FS, RM, CM),
33 Subtarget(TT, CPU, FS),
34 // FIXME: Check TargetData string.
35 DataLayout("e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"),
36 InstrInfo(*this), TLInfo(*this), TSInfo(*this),
37 FrameLowering(Subtarget) { }
38
39
addInstSelector(PassManagerBase & PM,CodeGenOpt::Level OptLevel)40 bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM,
41 CodeGenOpt::Level OptLevel) {
42 // Install an instruction selector.
43 PM.add(createMSP430ISelDag(*this, OptLevel));
44 return false;
45 }
46
addPreEmitPass(PassManagerBase & PM,CodeGenOpt::Level OptLevel)47 bool MSP430TargetMachine::addPreEmitPass(PassManagerBase &PM,
48 CodeGenOpt::Level OptLevel) {
49 // Must run branch selection immediately preceding the asm printer.
50 PM.add(createMSP430BranchSelectionPass());
51 return false;
52 }
53