LLVM  9.0.0svn
XCoreTargetMachine.cpp
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1 //===-- XCoreTargetMachine.cpp - Define TargetMachine for XCore -----------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 //
10 //===----------------------------------------------------------------------===//
11 
12 #include "XCoreTargetMachine.h"
15 #include "XCore.h"
16 #include "XCoreTargetObjectFile.h"
18 #include "llvm/ADT/Optional.h"
19 #include "llvm/ADT/STLExtras.h"
21 #include "llvm/CodeGen/Passes.h"
23 #include "llvm/Support/CodeGen.h"
25 
26 using namespace llvm;
27 
29  if (!RM.hasValue())
30  return Reloc::Static;
31  return *RM;
32 }
33 
34 static CodeModel::Model
36  if (CM) {
37  if (*CM != CodeModel::Small && *CM != CodeModel::Large)
38  report_fatal_error("Target only supports CodeModel Small or Large");
39  return *CM;
40  }
41  return CodeModel::Small;
42 }
43 
44 /// Create an ILP32 architecture model
45 ///
47  StringRef CPU, StringRef FS,
48  const TargetOptions &Options,
51  CodeGenOpt::Level OL, bool JIT)
53  T, "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:32-f64:32-a:0:32-n32",
54  TT, CPU, FS, Options, getEffectiveRelocModel(RM),
57  Subtarget(TT, CPU, FS, *this) {
58  initAsmInfo();
59 }
60 
62 
63 namespace {
64 
65 /// XCore Code Generator Pass Configuration Options.
66 class XCorePassConfig : public TargetPassConfig {
67 public:
68  XCorePassConfig(XCoreTargetMachine &TM, PassManagerBase &PM)
69  : TargetPassConfig(TM, PM) {}
70 
71  XCoreTargetMachine &getXCoreTargetMachine() const {
72  return getTM<XCoreTargetMachine>();
73  }
74 
75  void addIRPasses() override;
76  bool addPreISel() override;
77  bool addInstSelector() override;
78  void addPreEmitPass() override;
79 };
80 
81 } // end anonymous namespace
82 
84  return new XCorePassConfig(*this, PM);
85 }
86 
87 void XCorePassConfig::addIRPasses() {
88  addPass(createAtomicExpandPass());
89 
91 }
92 
93 bool XCorePassConfig::addPreISel() {
95  return false;
96 }
97 
98 bool XCorePassConfig::addInstSelector() {
99  addPass(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel()));
100  return false;
101 }
102 
103 void XCorePassConfig::addPreEmitPass() {
105 }
106 
107 // Force static initialization.
108 extern "C" void LLVMInitializeXCoreTarget() {
110 }
111 
114  return TargetTransformInfo(XCoreTTIImpl(this, F));
115 }
static GCMetadataPrinterRegistry::Add< ErlangGCPrinter > X("erlang", "erlang-compatible garbage collector")
void LLVMInitializeXCoreTarget()
LLVM_ATTRIBUTE_NORETURN void report_fatal_error(Error Err, bool gen_crash_diag=true)
Report a serious error, calling any installed error handler.
Definition: Error.cpp:139
This class represents lattice values for constants.
Definition: AllocatorList.h:23
virtual void addIRPasses()
Add common target configurable passes that perform LLVM IR to IR transforms following machine indepen...
static CodeModel::Model getEffectiveXCoreCodeModel(Optional< CodeModel::Model > CM)
TargetPassConfig * createPassConfig(PassManagerBase &PM) override
Create a pass configuration object to be used by addPassToEmitX methods for generating a pipeline of ...
F(f)
std::enable_if<!std::is_array< T >::value, std::unique_ptr< T > >::type make_unique(Args &&... args)
Constructs a new T() with the given args and returns a unique_ptr<T> which owns the object...
Definition: STLExtras.h:1410
ModulePass * createXCoreLowerThreadLocalPass()
XCoreTargetMachine(const Target &T, const Triple &TT, StringRef CPU, StringRef FS, const TargetOptions &Options, Optional< Reloc::Model > RM, Optional< CodeModel::Model > CM, CodeGenOpt::Level OL, bool JIT)
Create an ILP32 architecture model.
Target-Independent Code Generator Pass Configuration Options.
RegisterTargetMachine - Helper template for registering a target machine implementation, for use in the target machine initialization function.
FunctionPass * createXCoreFrameToArgsOffsetEliminationPass()
createXCoreFrameToArgsOffsetEliminationPass - returns an instance of the Frame to args offset elimina...
TargetTransformInfo getTargetTransformInfo(const Function &F) override
Get a TargetTransformInfo implementation for the target.
CodeGenOpt::Level getOptLevel() const
Returns the optimization level: None, Less, Default, or Aggressive.
static Reloc::Model getEffectiveRelocModel(Optional< Reloc::Model > RM)
FunctionPass * createXCoreISelDag(XCoreTargetMachine &TM, CodeGenOpt::Level OptLevel)
createXCoreISelDag - This pass converts a legalized DAG into a XCore-specific DAG, ready for instruction scheduling.
This class describes a target machine that is implemented with the LLVM target-independent code gener...
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:43
Target & getTheXCoreTarget()
This pass provides access to the codegen interfaces that are needed for IR-level transformations.
PassManagerBase - An abstract interface to allow code to add passes to a pass manager without having ...
Target - Wrapper for Target specific information.
bool hasValue() const
Definition: Optional.h:259
~XCoreTargetMachine() override
This file a TargetTransformInfo::Concept conforming object specific to the XCore target machine...
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48
This pass exposes codegen information to IR-level passes.
FunctionPass * createAtomicExpandPass()