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annotate lib/CodeGen/LLVMTargetMachine.cpp @ 89:9020ffd06b8b

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Create prototype declaration automatically (only support direct continuation)
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 14 Apr 2015 03:55:39 +0900
parents 60c9769439b8
children afa8332a0e37
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1 //===-- LLVMTargetMachine.cpp - Implement the LLVMTargetMachine class -----===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // This file implements the LLVMTargetMachine class.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #include "llvm/Target/TargetMachine.h"
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15 #include "llvm/Analysis/JumpInstrTableInfo.h"
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16 #include "llvm/Analysis/Passes.h"
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17 #include "llvm/CodeGen/AsmPrinter.h"
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18 #include "llvm/CodeGen/BasicTTIImpl.h"
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19 #include "llvm/CodeGen/ForwardControlFlowIntegrity.h"
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20 #include "llvm/CodeGen/JumpInstrTables.h"
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21 #include "llvm/CodeGen/MachineFunctionAnalysis.h"
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22 #include "llvm/CodeGen/MachineModuleInfo.h"
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23 #include "llvm/CodeGen/Passes.h"
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24 #include "llvm/IR/IRPrintingPasses.h"
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25 #include "llvm/IR/LegacyPassManager.h"
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26 #include "llvm/IR/Verifier.h"
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27 #include "llvm/MC/MCAsmInfo.h"
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28 #include "llvm/MC/MCContext.h"
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29 #include "llvm/MC/MCInstrInfo.h"
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30 #include "llvm/MC/MCStreamer.h"
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31 #include "llvm/MC/MCSubtargetInfo.h"
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32 #include "llvm/Support/CommandLine.h"
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33 #include "llvm/Support/ErrorHandling.h"
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34 #include "llvm/Support/FormattedStream.h"
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35 #include "llvm/Support/TargetRegistry.h"
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36 #include "llvm/Target/TargetInstrInfo.h"
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37 #include "llvm/Target/TargetLowering.h"
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38 #include "llvm/Target/TargetLoweringObjectFile.h"
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39 #include "llvm/Target/TargetOptions.h"
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40 #include "llvm/Target/TargetRegisterInfo.h"
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41 #include "llvm/Target/TargetSubtargetInfo.h"
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42 #include "llvm/Transforms/Scalar.h"
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43 using namespace llvm;
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44
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45 // Enable or disable FastISel. Both options are needed, because
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46 // FastISel is enabled by default with -fast, and we wish to be
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47 // able to enable or disable fast-isel independently from -O0.
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48 static cl::opt<cl::boolOrDefault>
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49 EnableFastISelOption("fast-isel", cl::Hidden,
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50 cl::desc("Enable the \"fast\" instruction selector"));
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51
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52 void LLVMTargetMachine::initAsmInfo() {
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53 MCAsmInfo *TmpAsmInfo = TheTarget.createMCAsmInfo(
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54 *getSubtargetImpl()->getRegisterInfo(), getTargetTriple());
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55 // TargetSelect.h moved to a different directory between LLVM 2.9 and 3.0,
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56 // and if the old one gets included then MCAsmInfo will be NULL and
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57 // we'll crash later.
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58 // Provide the user with a useful error message about what's wrong.
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59 assert(TmpAsmInfo && "MCAsmInfo not initialized. "
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60 "Make sure you include the correct TargetSelect.h"
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61 "and that InitializeAllTargetMCs() is being invoked!");
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62
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63 if (Options.DisableIntegratedAS)
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64 TmpAsmInfo->setUseIntegratedAssembler(false);
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65
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66 if (Options.CompressDebugSections)
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67 TmpAsmInfo->setCompressDebugSections(true);
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68
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69 AsmInfo = TmpAsmInfo;
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70 }
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71
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72 LLVMTargetMachine::LLVMTargetMachine(const Target &T, StringRef Triple,
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73 StringRef CPU, StringRef FS,
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74 TargetOptions Options,
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75 Reloc::Model RM, CodeModel::Model CM,
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76 CodeGenOpt::Level OL)
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77 : TargetMachine(T, Triple, CPU, FS, Options) {
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78 CodeGenInfo = T.createMCCodeGenInfo(Triple, RM, CM, OL);
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79 }
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80
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81 TargetIRAnalysis LLVMTargetMachine::getTargetIRAnalysis() {
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82 return TargetIRAnalysis([this](Function &F) {
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83 return TargetTransformInfo(BasicTTIImpl(this, F));
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84 });
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85 }
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86
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87 /// addPassesToX helper drives creation and initialization of TargetPassConfig.
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88 static MCContext *addPassesToGenerateCode(LLVMTargetMachine *TM,
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89 PassManagerBase &PM,
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90 bool DisableVerify,
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91 AnalysisID StartAfter,
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92 AnalysisID StopAfter) {
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93
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94 // Add internal analysis passes from the target machine.
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95 PM.add(createTargetTransformInfoWrapperPass(TM->getTargetIRAnalysis()));
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96
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97 // Targets may override createPassConfig to provide a target-specific
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98 // subclass.
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99 TargetPassConfig *PassConfig = TM->createPassConfig(PM);
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100 PassConfig->setStartStopPasses(StartAfter, StopAfter);
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101
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102 // Set PassConfig options provided by TargetMachine.
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103 PassConfig->setDisableVerify(DisableVerify);
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104
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105 PM.add(PassConfig);
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106
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107 PassConfig->addIRPasses();
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108
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109 PassConfig->addCodeGenPrepare();
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110
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111 PassConfig->addPassesToHandleExceptions();
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112
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113 PassConfig->addISelPrepare();
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114
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115 // Install a MachineModuleInfo class, which is an immutable pass that holds
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116 // all the per-module stuff we're generating, including MCContext.
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117 MachineModuleInfo *MMI = new MachineModuleInfo(
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118 *TM->getMCAsmInfo(), *TM->getSubtargetImpl()->getRegisterInfo(),
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119 TM->getObjFileLowering());
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120 PM.add(MMI);
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121
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122 // Set up a MachineFunction for the rest of CodeGen to work on.
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123 PM.add(new MachineFunctionAnalysis(*TM));
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124
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125 // Enable FastISel with -fast, but allow that to be overridden.
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126 if (EnableFastISelOption == cl::BOU_TRUE ||
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127 (TM->getOptLevel() == CodeGenOpt::None &&
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
128 EnableFastISelOption != cl::BOU_FALSE))
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
129 TM->setFastISel(true);
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
130
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
131 // Ask the target for an isel.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
132 if (PassConfig->addInstSelector())
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
133 return nullptr;
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
134
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
135 PassConfig->addMachinePasses();
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
136
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
137 PassConfig->setInitialized();
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
138
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
139 return &MMI->getContext();
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
140 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
141
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
142 bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
143 formatted_raw_ostream &Out,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
144 CodeGenFileType FileType,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
145 bool DisableVerify,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
146 AnalysisID StartAfter,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
147 AnalysisID StopAfter) {
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
148 // Passes to handle jumptable function annotations. These can't be handled at
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
149 // JIT time, so we don't add them directly to addPassesToGenerateCode.
83
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
150 PM.add(createJumpInstrTableInfoPass(
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
151 getSubtargetImpl()->getInstrInfo()->getJumpInstrTableEntryBound()));
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
152 PM.add(createJumpInstrTablesPass(Options.JTType));
83
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
153 if (Options.FCFI)
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
154 PM.add(createForwardControlFlowIntegrityPass(
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
155 Options.JTType, Options.CFIType, Options.CFIEnforcing,
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
156 Options.getCFIFuncName()));
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
157
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
158 // Add common CodeGen passes.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
159 MCContext *Context = addPassesToGenerateCode(this, PM, DisableVerify,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
160 StartAfter, StopAfter);
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
161 if (!Context)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
162 return true;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
163
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
164 if (StopAfter) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
165 // FIXME: The intent is that this should eventually write out a YAML file,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
166 // containing the LLVM IR, the machine-level IR (when stopping after a
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
167 // machine-level pass), and whatever other information is needed to
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
168 // deserialize the code and resume compilation. For now, just write the
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
169 // LLVM IR.
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
170 PM.add(createPrintModulePass(Out));
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
171 return false;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
172 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
173
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
174 if (Options.MCOptions.MCSaveTempLabels)
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
175 Context->setAllowTemporaryLabels(false);
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
176
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
177 const MCSubtargetInfo &STI = getSubtarget<MCSubtargetInfo>();
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
178 const MCAsmInfo &MAI = *getMCAsmInfo();
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
179 const MCRegisterInfo &MRI = *getSubtargetImpl()->getRegisterInfo();
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
180 const MCInstrInfo &MII = *getSubtargetImpl()->getInstrInfo();
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
181 std::unique_ptr<MCStreamer> AsmStreamer;
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
182
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
183 switch (FileType) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
184 case CGFT_AssemblyFile: {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
185 MCInstPrinter *InstPrinter =
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
186 getTarget().createMCInstPrinter(MAI.getAssemblerDialect(), MAI,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
187 MII, MRI, STI);
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
188
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
189 // Create a code emitter if asked to show the encoding.
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
190 MCCodeEmitter *MCE = nullptr;
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
191 if (Options.MCOptions.ShowMCEncoding)
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
192 MCE = getTarget().createMCCodeEmitter(MII, MRI, STI, *Context);
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
193
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
194 MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(),
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
195 TargetCPU);
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
196 MCStreamer *S = getTarget().createAsmStreamer(
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
197 *Context, Out, Options.MCOptions.AsmVerbose,
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
198 Options.MCOptions.MCUseDwarfDirectory, InstPrinter, MCE, MAB,
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
199 Options.MCOptions.ShowMCInst);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
200 AsmStreamer.reset(S);
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
201 break;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
202 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
203 case CGFT_ObjectFile: {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
204 // Create the code emitter for the target if it exists. If not, .o file
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
205 // emission fails.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
206 MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(MII, MRI, STI,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
207 *Context);
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
208 MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(),
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
209 TargetCPU);
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
210 if (!MCE || !MAB)
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
211 return true;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
212
83
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
213 AsmStreamer.reset(
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
214 getTarget()
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
215 .createMCObjectStreamer(getTargetTriple(), *Context, *MAB, Out, MCE,
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
216 STI, Options.MCOptions.MCRelaxAll));
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
217 break;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
218 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
219 case CGFT_Null:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
220 // The Null output is intended for use for performance analysis and testing,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
221 // not real users.
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
222 AsmStreamer.reset(getTarget().createNullStreamer(*Context));
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
223 break;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
224 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
225
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
226 // Create the AsmPrinter, which takes ownership of AsmStreamer if successful.
83
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
227 FunctionPass *Printer =
60c9769439b8 LLVM 3.7
Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
parents: 77
diff changeset
228 getTarget().createAsmPrinter(*this, std::move(AsmStreamer));
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
229 if (!Printer)
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
230 return true;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
231
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
232 PM.add(Printer);
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
233
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
234 return false;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
235 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
236
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
237 /// addPassesToEmitMC - Add passes to the specified pass manager to get
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
238 /// machine code emitted with the MCJIT. This method returns true if machine
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
239 /// code is not supported. It fills the MCContext Ctx pointer which can be
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
240 /// used to build custom MCStreamer.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
241 ///
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
242 bool LLVMTargetMachine::addPassesToEmitMC(PassManagerBase &PM,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
243 MCContext *&Ctx,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
244 raw_ostream &Out,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
245 bool DisableVerify) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
246 // Add common CodeGen passes.
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
247 Ctx = addPassesToGenerateCode(this, PM, DisableVerify, nullptr, nullptr);
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
248 if (!Ctx)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
249 return true;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
250
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
251 if (Options.MCOptions.MCSaveTempLabels)
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
252 Ctx->setAllowTemporaryLabels(false);
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
253
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
254 // Create the code emitter for the target if it exists. If not, .o file
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
255 // emission fails.
77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
256 const MCRegisterInfo &MRI = *getSubtargetImpl()->getRegisterInfo();
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
257 const MCSubtargetInfo &STI = getSubtarget<MCSubtargetInfo>();
77
54457678186b LLVM 3.6
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258 MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(
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259 *getSubtargetImpl()->getInstrInfo(), MRI, STI, *Ctx);
0
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260 MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(),
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261 TargetCPU);
77
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262 if (!MCE || !MAB)
0
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263 return true;
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264
83
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265 std::unique_ptr<MCStreamer> AsmStreamer(getTarget().createMCObjectStreamer(
77
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266 getTargetTriple(), *Ctx, *MAB, Out, MCE, STI,
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267 Options.MCOptions.MCRelaxAll));
0
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268
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269 // Create the AsmPrinter, which takes ownership of AsmStreamer if successful.
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270 FunctionPass *Printer =
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271 getTarget().createAsmPrinter(*this, std::move(AsmStreamer));
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272 if (!Printer)
0
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273 return true;
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274
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275 PM.add(Printer);
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276
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277 return false; // success!
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278 }