llvm-6502/lib/Target/SystemZ/SystemZTargetMachine.cpp

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//===-- SystemZTargetMachine.cpp - Define TargetMachine for SystemZ -------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "SystemZMCAsmInfo.h"
#include "SystemZTargetMachine.h"
#include "SystemZ.h"
#include "llvm/PassManager.h"
#include "llvm/Target/TargetRegistry.h"
using namespace llvm;
extern "C" void LLVMInitializeSystemZTarget() {
// Register the target.
RegisterTargetMachine<SystemZTargetMachine> X(TheSystemZTarget);
RegisterAsmInfo<SystemZMCAsmInfo> Y(TheSystemZTarget);
}
/// SystemZTargetMachine ctor - Create an ILP64 architecture model
///
SystemZTargetMachine::SystemZTargetMachine(const Target &T,
const std::string &TT,
const std::string &FS)
: LLVMTargetMachine(T, TT),
Subtarget(TT, FS),
DataLayout("E-p:64:64:64-i8:8:16-i16:16:16-i32:32:32-i64:64:64-f32:32:32"
"-f64:64:64-f128:128:128-a0:16:16-n32:64"),
InstrInfo(*this), TLInfo(*this), TSInfo(*this),
FrameLowering(Subtarget) {
if (getRelocationModel() == Reloc::Default)
setRelocationModel(Reloc::Static);
}
bool SystemZTargetMachine::addInstSelector(PassManagerBase &PM,
CodeGenOpt::Level OptLevel) {
// Install an instruction selector.
PM.add(createSystemZISelDag(*this, OptLevel));
return false;
}