1 //===-- ARMTargetMachine.cpp - Define TargetMachine for ARM ---------------===//
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 //===----------------------------------------------------------------------===//
13 #include "ARMTargetMachine.h"
14 #include "ARMMCAsmInfo.h"
15 #include "ARMFrameInfo.h"
17 #include "llvm/PassManager.h"
18 #include "llvm/CodeGen/Passes.h"
19 #include "llvm/Support/CommandLine.h"
20 #include "llvm/Support/FormattedStream.h"
21 #include "llvm/Target/TargetOptions.h"
22 #include "llvm/Target/TargetRegistry.h"
25 static const MCAsmInfo *createMCAsmInfo(const Target &T,
26 const StringRef &TT) {
28 switch (TheTriple.getOS()) {
30 return new ARMMCAsmInfoDarwin();
32 return new ARMELFMCAsmInfo();
37 extern "C" void LLVMInitializeARMTarget() {
38 // Register the target.
39 RegisterTargetMachine<ARMTargetMachine> X(TheARMTarget);
40 RegisterTargetMachine<ThumbTargetMachine> Y(TheThumbTarget);
42 // Register the target asm info.
43 RegisterAsmInfoFn A(TheARMTarget, createMCAsmInfo);
44 RegisterAsmInfoFn B(TheThumbTarget, createMCAsmInfo);
47 /// TargetMachine ctor - Create an ARM architecture model.
49 ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T,
50 const std::string &TT,
51 const std::string &FS,
53 : LLVMTargetMachine(T, TT),
54 Subtarget(TT, FS, isThumb),
57 InstrItins(Subtarget.getInstrItineraryData()) {
58 DefRelocModel = getRelocationModel();
61 ARMTargetMachine::ARMTargetMachine(const Target &T, const std::string &TT,
62 const std::string &FS)
63 : ARMBaseTargetMachine(T, TT, FS, false), InstrInfo(Subtarget),
64 DataLayout(Subtarget.isAPCS_ABI() ?
65 std::string("e-p:32:32-f64:32:32-i64:32:32") :
66 std::string("e-p:32:32-f64:64:64-i64:64:64")),
70 ThumbTargetMachine::ThumbTargetMachine(const Target &T, const std::string &TT,
71 const std::string &FS)
72 : ARMBaseTargetMachine(T, TT, FS, true),
73 InstrInfo(Subtarget.hasThumb2()
74 ? ((ARMBaseInstrInfo*)new Thumb2InstrInfo(Subtarget))
75 : ((ARMBaseInstrInfo*)new Thumb1InstrInfo(Subtarget))),
76 DataLayout(Subtarget.isAPCS_ABI() ?
77 std::string("e-p:32:32-f64:32:32-i64:32:32-"
78 "i16:16:32-i8:8:32-i1:8:32-a:0:32") :
79 std::string("e-p:32:32-f64:64:64-i64:64:64-"
80 "i16:16:32-i8:8:32-i1:8:32-a:0:32")),
86 // Pass Pipeline Configuration
87 bool ARMBaseTargetMachine::addInstSelector(PassManagerBase &PM,
88 CodeGenOpt::Level OptLevel) {
89 PM.add(createARMISelDag(*this));
93 bool ARMBaseTargetMachine::addPreRegAlloc(PassManagerBase &PM,
94 CodeGenOpt::Level OptLevel) {
95 if (Subtarget.hasNEON())
96 PM.add(createNEONPreAllocPass());
98 // FIXME: temporarily disabling load / store optimization pass for Thumb mode.
99 if (OptLevel != CodeGenOpt::None && !Subtarget.isThumb())
100 PM.add(createARMLoadStoreOptimizationPass(true));
104 bool ARMBaseTargetMachine::addPreEmitPass(PassManagerBase &PM,
105 CodeGenOpt::Level OptLevel) {
106 // FIXME: temporarily disabling load / store optimization pass for Thumb1 mode.
107 if (OptLevel != CodeGenOpt::None && !Subtarget.isThumb1Only())
108 PM.add(createARMLoadStoreOptimizationPass());
110 if (OptLevel != CodeGenOpt::None && !Subtarget.isThumb1Only())
111 PM.add(createIfConverterPass());
113 if (Subtarget.isThumb2()) {
114 PM.add(createThumb2ITBlockPass());
115 PM.add(createThumb2SizeReductionPass());
118 PM.add(createARMConstantIslandPass());
122 bool ARMBaseTargetMachine::addCodeEmitter(PassManagerBase &PM,
123 CodeGenOpt::Level OptLevel,
124 MachineCodeEmitter &MCE) {
125 // FIXME: Move this to TargetJITInfo!
126 if (DefRelocModel == Reloc::Default)
127 setRelocationModel(Reloc::Static);
129 // Machine code emitter pass for ARM.
130 PM.add(createARMCodeEmitterPass(*this, MCE));
134 bool ARMBaseTargetMachine::addCodeEmitter(PassManagerBase &PM,
135 CodeGenOpt::Level OptLevel,
136 JITCodeEmitter &JCE) {
137 // FIXME: Move this to TargetJITInfo!
138 if (DefRelocModel == Reloc::Default)
139 setRelocationModel(Reloc::Static);
141 // Machine code emitter pass for ARM.
142 PM.add(createARMJITCodeEmitterPass(*this, JCE));
146 bool ARMBaseTargetMachine::addCodeEmitter(PassManagerBase &PM,
147 CodeGenOpt::Level OptLevel,
148 ObjectCodeEmitter &OCE) {
149 // FIXME: Move this to TargetJITInfo!
150 if (DefRelocModel == Reloc::Default)
151 setRelocationModel(Reloc::Static);
153 // Machine code emitter pass for ARM.
154 PM.add(createARMObjectCodeEmitterPass(*this, OCE));
158 bool ARMBaseTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
159 CodeGenOpt::Level OptLevel,
160 MachineCodeEmitter &MCE) {
161 // Machine code emitter pass for ARM.
162 PM.add(createARMCodeEmitterPass(*this, MCE));
166 bool ARMBaseTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
167 CodeGenOpt::Level OptLevel,
168 JITCodeEmitter &JCE) {
169 // Machine code emitter pass for ARM.
170 PM.add(createARMJITCodeEmitterPass(*this, JCE));
174 bool ARMBaseTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
175 CodeGenOpt::Level OptLevel,
176 ObjectCodeEmitter &OCE) {
177 // Machine code emitter pass for ARM.
178 PM.add(createARMObjectCodeEmitterPass(*this, OCE));