1 //===-- AlphaTargetMachine.cpp - Define TargetMachine for Alpha -----------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
14 #include "AlphaJITInfo.h"
15 #include "AlphaTargetAsmInfo.h"
16 #include "AlphaTargetMachine.h"
17 #include "llvm/Module.h"
18 #include "llvm/PassManager.h"
19 #include "llvm/Target/TargetMachineRegistry.h"
20 #include "llvm/Support/raw_ostream.h"
24 /// AlphaTargetMachineModule - Note that this is used on hosts that cannot link
25 /// in a library unless there are references into the library. In particular,
26 /// it seems that it is not possible to get things to work on Win32 without
27 /// this. Though it is unused, do not remove it.
28 extern "C" int AlphaTargetMachineModule;
29 int AlphaTargetMachineModule = 0;
31 // Register the targets
32 static RegisterTarget<AlphaTargetMachine> X("alpha", "Alpha [experimental]");
34 const TargetAsmInfo *AlphaTargetMachine::createTargetAsmInfo() const {
35 return new AlphaTargetAsmInfo(*this);
38 unsigned AlphaTargetMachine::getModuleMatchQuality(const Module &M) {
39 // We strongly match "alpha*".
40 std::string TT = M.getTargetTriple();
41 if (TT.size() >= 5 && TT[0] == 'a' && TT[1] == 'l' && TT[2] == 'p' &&
42 TT[3] == 'h' && TT[4] == 'a')
44 // If the target triple is something non-alpha, we don't match.
45 if (!TT.empty()) return 0;
47 if (M.getEndianness() == Module::LittleEndian &&
48 M.getPointerSize() == Module::Pointer64)
49 return 10; // Weak match
50 else if (M.getEndianness() != Module::AnyEndianness ||
51 M.getPointerSize() != Module::AnyPointerSize)
52 return 0; // Match for some other target
54 return getJITMatchQuality()/2;
57 unsigned AlphaTargetMachine::getJITMatchQuality() {
65 AlphaTargetMachine::AlphaTargetMachine(const Module &M, const std::string &FS)
66 : DataLayout("e-f128:128:128"),
67 FrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0),
71 setRelocationModel(Reloc::PIC_);
75 //===----------------------------------------------------------------------===//
76 // Pass Pipeline Configuration
77 //===----------------------------------------------------------------------===//
79 bool AlphaTargetMachine::addInstSelector(PassManagerBase &PM, bool Fast) {
80 PM.add(createAlphaISelDag(*this));
83 bool AlphaTargetMachine::addPreEmitPass(PassManagerBase &PM, bool Fast) {
84 // Must run branch selection immediately preceding the asm printer
85 PM.add(createAlphaBranchSelectionPass());
88 bool AlphaTargetMachine::addAssemblyEmitter(PassManagerBase &PM, bool Fast,
90 PM.add(createAlphaLLRPPass(*this));
91 PM.add(createAlphaCodePrinterPass(Out, *this));
94 bool AlphaTargetMachine::addCodeEmitter(PassManagerBase &PM, bool Fast,
95 bool DumpAsm, MachineCodeEmitter &MCE) {
96 PM.add(createAlphaCodeEmitterPass(*this, MCE));
98 PM.add(createAlphaCodePrinterPass(errs(), *this));
101 bool AlphaTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
102 bool Fast, bool DumpAsm,
103 MachineCodeEmitter &MCE) {
104 return addCodeEmitter(PM, Fast, DumpAsm, MCE);