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 
22 extern "C" void LLVMInitializeMSP430Target() {
23   // Register the target.
24   RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
25 }
26 
27 MSP430TargetMachine::MSP430TargetMachine(const Target &T,
28                                          StringRef TT,
29                                          StringRef CPU,
30                                          StringRef FS,
31                                          const TargetOptions &Options,
32                                          Reloc::Model RM, CodeModel::Model CM,
33                                          CodeGenOpt::Level OL)
34   : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
35     Subtarget(TT, CPU, FS),
36     // FIXME: Check TargetData string.
37     DataLayout("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) { }
40 
41 
42 bool MSP430TargetMachine::addInstSelector(PassManagerBase &PM) {
43   // Install an instruction selector.
44   PM.add(createMSP430ISelDag(*this, getOptLevel()));
45   return false;
46 }
47 
48 bool MSP430TargetMachine::addPreEmitPass(PassManagerBase &PM) {
49   // Must run branch selection immediately preceding the asm printer.
50   PM.add(createMSP430BranchSelectionPass());
51   return false;
52 }
53