1 //===-- PowerPCTargetMachine.cpp - Define TargetMachine for PowerPC -------===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
14 #include "PowerPCTargetMachine.h"
15 #include "PowerPCFrameInfo.h"
16 #include "PPC32TargetMachine.h"
17 #include "PPC64TargetMachine.h"
18 #include "PPC32JITInfo.h"
19 #include "PPC64JITInfo.h"
20 #include "llvm/Module.h"
21 #include "llvm/PassManager.h"
22 #include "llvm/CodeGen/IntrinsicLowering.h"
23 #include "llvm/CodeGen/MachineFunction.h"
24 #include "llvm/CodeGen/Passes.h"
25 #include "llvm/Target/TargetOptions.h"
26 #include "llvm/Target/TargetMachineRegistry.h"
27 #include "llvm/Transforms/Scalar.h"
28 #include "llvm/Support/CommandLine.h"
33 cl::opt<bool> AIX("aix",
34 cl::desc("Generate AIX/xcoff instead of Darwin/MachO"),
39 const std::string PPC32ID = "PowerPC/32bit";
40 const std::string PPC64ID = "PowerPC/64bit";
42 // Register the targets
43 RegisterTarget<PPC32TargetMachine>
44 X("ppc32", " PowerPC 32-bit");
47 RegisterTarget<PPC64TargetMachine>
48 Y("ppc64", " PowerPC 64-bit (unimplemented)");
52 PowerPCTargetMachine::PowerPCTargetMachine(const std::string &name,
53 IntrinsicLowering *IL,
55 const PowerPCFrameInfo &TFI)
56 : TargetMachine(name, IL, TD), FrameInfo(TFI)
59 unsigned PPC32TargetMachine::getJITMatchQuality() {
60 #if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)
67 /// addPassesToEmitAssembly - Add passes to the specified pass manager
68 /// to implement a static compiler for this target.
70 bool PowerPCTargetMachine::addPassesToEmitAssembly(PassManager &PM,
72 bool LP64 = (0 != dynamic_cast<PPC64TargetMachine *>(this));
74 // FIXME: Implement efficient support for garbage collection intrinsics.
75 PM.add(createLowerGCPass());
77 // FIXME: Implement the invoke/unwind instructions!
78 PM.add(createLowerInvokePass());
80 // FIXME: Implement the switch instruction in the instruction selector!
81 PM.add(createLowerSwitchPass());
83 PM.add(createLowerConstantExpressionsPass());
85 // Make sure that no unreachable blocks are instruction selected.
86 PM.add(createUnreachableBlockEliminationPass());
89 PM.add(createPPC64ISelSimple(*this));
91 PM.add(createPPC32ISelSimple(*this));
94 PM.add(createMachineFunctionPrinterPass(&std::cerr));
96 PM.add(createRegisterAllocator());
99 PM.add(createMachineFunctionPrinterPass(&std::cerr));
101 PM.add(createPrologEpilogCodeInserter());
103 // Must run branch selection immediately preceding the asm printer
104 PM.add(createPPCBranchSelectionPass());
107 PM.add(createAIXAsmPrinter(Out, *this));
109 PM.add(createDarwinAsmPrinter(Out, *this));
111 PM.add(createMachineCodeDeleter());
115 void PowerPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
116 // FIXME: Implement efficient support for garbage collection intrinsics.
117 PM.add(createLowerGCPass());
119 // FIXME: Implement the invoke/unwind instructions!
120 PM.add(createLowerInvokePass());
122 // FIXME: Implement the switch instruction in the instruction selector!
123 PM.add(createLowerSwitchPass());
125 PM.add(createLowerConstantExpressionsPass());
127 // Make sure that no unreachable blocks are instruction selected.
128 PM.add(createUnreachableBlockEliminationPass());
130 PM.add(createPPC32ISelSimple(TM));
131 PM.add(createRegisterAllocator());
132 PM.add(createPrologEpilogCodeInserter());
134 // Must run branch selection immediately preceding the asm printer
135 PM.add(createPPCBranchSelectionPass());
137 if (PrintMachineCode)
138 PM.add(createMachineFunctionPrinterPass(&std::cerr));
141 /// PowerPCTargetMachine ctor - Create an ILP32 architecture model
143 PPC32TargetMachine::PPC32TargetMachine(const Module &M, IntrinsicLowering *IL)
144 : PowerPCTargetMachine(PPC32ID, IL,
145 TargetData(PPC32ID,false,4,4,4,4,4,4,2,1,1),
146 PowerPCFrameInfo(*this, false)), JITInfo(*this) {}
148 /// PPC64TargetMachine ctor - Create a LP64 architecture model
150 PPC64TargetMachine::PPC64TargetMachine(const Module &M, IntrinsicLowering *IL)
151 : PowerPCTargetMachine(PPC64ID, IL,
152 TargetData(PPC64ID,false,8,4,4,4,4,4,2,1,1),
153 PowerPCFrameInfo(*this, true)) {}
155 unsigned PPC32TargetMachine::getModuleMatchQuality(const Module &M) {
156 // We strongly match "powerpc-*".
157 std::string TT = M.getTargetTriple();
158 if (TT.size() >= 8 && std::string(TT.begin(), TT.begin()+8) == "powerpc-")
161 if (M.getEndianness() == Module::BigEndian &&
162 M.getPointerSize() == Module::Pointer32)
163 return 10; // Weak match
164 else if (M.getEndianness() != Module::AnyEndianness ||
165 M.getPointerSize() != Module::AnyPointerSize)
166 return 0; // Match for some other target
168 return getJITMatchQuality()/2;
171 unsigned PPC64TargetMachine::getModuleMatchQuality(const Module &M) {
172 if (M.getEndianness() == Module::BigEndian &&
173 M.getPointerSize() == Module::Pointer64)
174 return 10; // Direct match
175 else if (M.getEndianness() != Module::AnyEndianness ||
176 M.getPointerSize() != Module::AnyPointerSize)
177 return 0; // Match for some other target
179 return getJITMatchQuality()/2;