LLVM 20.0.0git
ARCTargetMachine.cpp
Go to the documentation of this file.
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"
17#include "llvm/CodeGen/Passes.h"
21#include <optional>
22
23using namespace llvm;
24
25static Reloc::Model getRelocModel(std::optional<Reloc::Model> RM) {
26 return RM.value_or(Reloc::Static);
27}
28
29/// ARCTargetMachine ctor - Create an ILP32 architecture model
31 StringRef CPU, StringRef FS,
33 std::optional<Reloc::Model> RM,
34 std::optional<CodeModel::Model> CM,
35 CodeGenOptLevel 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, std::string(CPU), std::string(FS), *this) {
44}
45
47
48namespace {
49
50/// ARC Code Generator Pass Configuration Options.
51class ARCPassConfig : public TargetPassConfig {
52public:
53 ARCPassConfig(ARCTargetMachine &TM, PassManagerBase &PM)
54 : TargetPassConfig(TM, PM) {}
55
56 ARCTargetMachine &getARCTargetMachine() const {
57 return getTM<ARCTargetMachine>();
58 }
59
60 void addIRPasses() override;
61 bool addInstSelector() override;
62 void addPreEmitPass() override;
63 void addPreRegAlloc() override;
64};
65
66} // end anonymous namespace
67
69 return new ARCPassConfig(*this, PM);
70}
71
72void ARCPassConfig::addIRPasses() {
74
76}
77
78bool ARCPassConfig::addInstSelector() {
79 addPass(createARCISelDag(getARCTargetMachine(), getOptLevel()));
80 return false;
81}
82
83void ARCPassConfig::addPreEmitPass() { addPass(createARCBranchFinalizePass()); }
84
85void ARCPassConfig::addPreRegAlloc() {
87 addPass(createARCOptAddrMode());
88}
89
91 BumpPtrAllocator &Allocator, const Function &F,
92 const TargetSubtargetInfo *STI) const {
93 return ARCFunctionInfo::create<ARCFunctionInfo>(Allocator, F, STI);
94}
95
96// Force static initialization.
101}
102
105 return TargetTransformInfo(ARCTTIImpl(this, F));
106}
static Reloc::Model getRelocModel(std::optional< Reloc::Model > RM)
LLVM_EXTERNAL_VISIBILITY void LLVMInitializeARCTarget()
#define LLVM_EXTERNAL_VISIBILITY
Definition: Compiler.h:135
static GCMetadataPrinterRegistry::Add< ErlangGCPrinter > X("erlang", "erlang-compatible garbage collector")
static LVOptions Options
Definition: LVOptions.cpp:25
#define F(x, y, z)
Definition: MD5.cpp:55
const char LLVMTargetMachineRef TM
Basic Register Allocator
Target-Independent Code Generator Pass Configuration Options pass.
MachineFunctionInfo * createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, const TargetSubtargetInfo *STI) const override
Create the target's instance of MachineFunctionInfo.
~ARCTargetMachine() override
TargetTransformInfo getTargetTransformInfo(const Function &F) const override
Get a TargetTransformInfo implementation for the target.
TargetPassConfig * createPassConfig(PassManagerBase &PM) override
Create a pass configuration object to be used by addPassToEmitX methods for generating a pipeline of ...
ARCTargetMachine(const Target &T, const Triple &TT, StringRef CPU, StringRef FS, const TargetOptions &Options, std::optional< Reloc::Model > RM, std::optional< CodeModel::Model > CM, CodeGenOptLevel OL, bool JIT)
ARCTargetMachine ctor - Create an ILP32 architecture model.
Allocate memory in an ever growing pool, as if by bump-pointer.
Definition: Allocator.h:66
This class describes a target machine that is implemented with the LLVM target-independent code gener...
PassRegistry - This class manages the registration and intitialization of the pass subsystem as appli...
Definition: PassRegistry.h:37
static PassRegistry * getPassRegistry()
getPassRegistry - Access the global registry object, which is automatically initialized at applicatio...
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
std::unique_ptr< const MCSubtargetInfo > STI
Target-Independent Code Generator Pass Configuration Options.
virtual void addIRPasses()
Add common target configurable passes that perform LLVM IR to IR transforms following machine indepen...
TargetSubtargetInfo - Generic base class for all target subtargets.
This pass provides access to the codegen interfaces that are needed for IR-level transformations.
Target - Wrapper for Target specific information.
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
PassManagerBase - An abstract interface to allow code to add passes to a pass manager without having ...
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
Target & getTheARCTarget()
CodeModel::Model getEffectiveCodeModel(std::optional< CodeModel::Model > CM, CodeModel::Model Default)
Helper method for getting the code model, returning Default if CM does not have a value.
FunctionPass * createARCExpandPseudosPass()
FunctionPass * createARCISelDag(ARCTargetMachine &TM, CodeGenOptLevel OptLevel)
This pass converts a legalized DAG into a ARC-specific DAG, ready for instruction scheduling.
CodeGenOptLevel
Code generation optimization level.
Definition: CodeGen.h:54
void initializeARCDAGToDAGISelLegacyPass(PassRegistry &)
FunctionPass * createARCOptAddrMode()
FunctionPass * createAtomicExpandLegacyPass()
AtomicExpandPass - At IR level this pass replace atomic instructions with __atomic_* library calls,...
FunctionPass * createARCBranchFinalizePass()
Implement std::hash so that hash_code can be used in STL containers.
Definition: BitVector.h:858
MachineFunctionInfo - This class can be derived from and used by targets to hold private target-speci...
RegisterTargetMachine - Helper template for registering a target machine implementation,...