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 // 11 //===----------------------------------------------------------------------===// 12 13 #include "SystemZTargetAsmInfo.h" 14 #include "SystemZTargetMachine.h" 15 #include "SystemZ.h" 16 #include "llvm/Module.h" 17 #include "llvm/PassManager.h" 18 #include "llvm/Target/TargetMachineRegistry.h" 19 using namespace llvm; 20 21 /// SystemZTargetMachineModule - Note that this is used on hosts that 22 /// cannot link in a library unless there are references into the 23 /// library. In particular, it seems that it is not possible to get 24 /// things to work on Win32 without this. Though it is unused, do not 25 /// remove it. 26 extern "C" int SystemZTargetMachineModule; 27 int SystemZTargetMachineModule = 0; 28 29 // Register the target. 30 static RegisterTarget<SystemZTargetMachine> 31 X("systemz", "SystemZ [experimental]"); 32 33 const TargetAsmInfo *SystemZTargetMachine::createTargetAsmInfo() const { 34 // FIXME: Handle Solaris subtarget someday :) 35 return new SystemZTargetAsmInfo(*this); 36 } 37 38 /// SystemZTargetMachine ctor - Create an ILP64 architecture model 39 /// 40 SystemZTargetMachine::SystemZTargetMachine(const Module &M, const std::string &FS) 41 : Subtarget(*this, M, FS), 42 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"), 43 InstrInfo(*this), TLInfo(*this), 44 FrameInfo(TargetFrameInfo::StackGrowsDown, 8, -160) { 45 46 if (getRelocationModel() == Reloc::Default) 47 setRelocationModel(Reloc::Static); 48 } 49 50 bool SystemZTargetMachine::addInstSelector(PassManagerBase &PM, 51 CodeGenOpt::Level OptLevel) { 52 // Install an instruction selector. 53 PM.add(createSystemZISelDag(*this, OptLevel)); 54 return false; 55 } 56 57 bool SystemZTargetMachine::addAssemblyEmitter(PassManagerBase &PM, 58 CodeGenOpt::Level OptLevel, 59 bool Verbose, 60 raw_ostream &Out) { 61 // Output assembly language. 62 PM.add(createSystemZCodePrinterPass(Out, *this, OptLevel, Verbose)); 63 return false; 64 } 65 66 unsigned SystemZTargetMachine::getModuleMatchQuality(const Module &M) { 67 std::string TT = M.getTargetTriple(); 68 69 // We strongly match s390x 70 if (TT.size() >= 5 && TT[0] == 's' && TT[1] == '3' && TT[2] == '9' && 71 TT[3] == '0' && TT[4] == 'x') 72 return 20; 73 74 return 0; 75 } 76