LLVM  10.0.0svn
ARCTargetMachine.cpp
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1 //===- ARCTargetMachine.cpp - Define TargetMachine for ARC ------*- C++ -*-===//
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 "ARCTargetMachine.h"
13 #include "ARC.h"
14 #include "ARCTargetTransformInfo.h"
16 #include "llvm/CodeGen/Passes.h"
20 
21 using namespace llvm;
22 
24  if (!RM.hasValue())
25  return Reloc::Static;
26  return *RM;
27 }
28 
29 /// ARCTargetMachine ctor - Create an ILP32 architecture model
31  StringRef CPU, StringRef FS,
32  const TargetOptions &Options,
35  CodeGenOpt::Level OL, bool JIT)
37  "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-"
38  "f32:32:32-i64:32-f64:32-a:0:32-n32",
39  TT, CPU, FS, Options, getRelocModel(RM),
40  getEffectiveCodeModel(CM, CodeModel::Small), OL),
41  TLOF(std::make_unique<TargetLoweringObjectFileELF>()),
42  Subtarget(TT, CPU, FS, *this) {
43  initAsmInfo();
44 }
45 
47 
48 namespace {
49 
50 /// ARC Code Generator Pass Configuration Options.
51 class ARCPassConfig : public TargetPassConfig {
52 public:
53  ARCPassConfig(ARCTargetMachine &TM, PassManagerBase &PM)
54  : TargetPassConfig(TM, PM) {}
55 
56  ARCTargetMachine &getARCTargetMachine() const {
57  return getTM<ARCTargetMachine>();
58  }
59 
60  bool addInstSelector() override;
61  void addPreEmitPass() override;
62  void addPreRegAlloc() override;
63 };
64 
65 } // end anonymous namespace
66 
68  return new ARCPassConfig(*this, PM);
69 }
70 
71 bool ARCPassConfig::addInstSelector() {
72  addPass(createARCISelDag(getARCTargetMachine(), getOptLevel()));
73  return false;
74 }
75 
76 void ARCPassConfig::addPreEmitPass() { addPass(createARCBranchFinalizePass()); }
77 
78 void ARCPassConfig::addPreRegAlloc() {
79  addPass(createARCExpandPseudosPass());
80  addPass(createARCOptAddrMode());
81 }
82 
83 // Force static initialization.
84 extern "C" void LLVMInitializeARCTarget() {
86 }
87 
90  return TargetTransformInfo(ARCTTIImpl(this, F));
91 }
static GCMetadataPrinterRegistry::Add< ErlangGCPrinter > X("erlang", "erlang-compatible garbage collector")
CodeModel::Model getEffectiveCodeModel(Optional< CodeModel::Model > CM, CodeModel::Model Default)
Helper method for getting the code model, returning Default if CM does not have a value...
This class represents lattice values for constants.
Definition: AllocatorList.h:23
Target & getTheARCTarget()
F(f)
FunctionPass * createARCISelDag(ARCTargetMachine &TM, CodeGenOpt::Level OptLevel)
This pass converts a legalized DAG into a ARC-specific DAG, ready for instruction scheduling...
TargetTransformInfo getTargetTransformInfo(const Function &F) override
Get a TargetTransformInfo implementation for the target.
Definition: BitVector.h:937
Target-Independent Code Generator Pass Configuration Options.
RegisterTargetMachine - Helper template for registering a target machine implementation, for use in the target machine initialization function.
static Reloc::Model getRelocModel(Optional< Reloc::Model > RM)
TargetPassConfig * createPassConfig(PassManagerBase &PM) override
Create a pass configuration object to be used by addPassToEmitX methods for generating a pipeline of ...
CodeGenOpt::Level getOptLevel() const
Returns the optimization level: None, Less, Default, or Aggressive.
FunctionPass * createARCOptAddrMode()
~ARCTargetMachine() override
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
void LLVMInitializeARCTarget()
ARCTargetMachine(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)
ARCTargetMachine ctor - Create an ILP32 architecture model.
FunctionPass * createARCExpandPseudosPass()
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 ...
FunctionPass * createARCBranchFinalizePass()
Target - Wrapper for Target specific information.
bool hasValue() const
Definition: Optional.h:259
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48