lib/Target/SystemZ/SystemZTargetMachine.cpp

   1 //===-- SystemZTargetMachine.cpp - Define TargetMachine for SystemZ -------===//
   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 #include "SystemZMCAsmInfo.h"
  11 #include "SystemZTargetMachine.h"
  12 #include "SystemZ.h"
  13 #include "llvm/PassManager.h"
  14 #include "llvm/Target/TargetRegistry.h"
  15 using namespace llvm;
  16
  17 extern "C" void LLVMInitializeSystemZTarget() {
  18   // Register the target.
  19   RegisterTargetMachine<SystemZTargetMachine> X(TheSystemZTarget);
  20   RegisterAsmInfo<SystemZMCAsmInfo> Y(TheSystemZTarget);
  21 }
  22
  23 /// SystemZTargetMachine ctor - Create an ILP64 architecture model
  24 ///
  25 SystemZTargetMachine::SystemZTargetMachine(const Target &T,
  26                                            const std::string &TT,
  27                                            const std::string &CPU,
  28                                            const std::string &FS)
  29   : LLVMTargetMachine(T, TT, CPU, FS),
  30     Subtarget(TT, CPU, FS),
  31     DataLayout("E-p:64:64:64-i8:8:16-i16:16:16-i32:32:32-i64:64:64-f32:32:32"
  32                "-f64:64:64-f128:128:128-a0:16:16-n32:64"),
  33     InstrInfo(*this), TLInfo(*this), TSInfo(*this),
  34     FrameLowering(Subtarget) {
  35
  36   if (getRelocationModel() == Reloc::Default)
  37     setRelocationModel(Reloc::Static);
  38 }
  39
  40 bool SystemZTargetMachine::addInstSelector(PassManagerBase &PM,
  41                                           CodeGenOpt::Level OptLevel) {
  42   // Install an instruction selector.
  43   PM.add(createSystemZISelDag(*this, OptLevel));
  44   return false;
  45 }