19658d1474
## Purpose This patch is one in a series of code-mods that annotate LLVM’s public interface for export. This patch annotates the `llvm/Target` library. These annotations currently have no meaningful impact on the LLVM build; however, they are a prerequisite to support an LLVM Windows DLL (shared library) build. ## Background This effort is tracked in #109483. Additional context is provided in [this discourse](https://discourse.llvm.org/t/psa-annotating-llvm-public-interface/85307), and documentation for `LLVM_ABI` and related annotations is found in the LLVM repo [here](https://github.com/llvm/llvm-project/blob/main/llvm/docs/InterfaceExportAnnotations.rst). A sub-set of these changes were generated automatically using the [Interface Definition Scanner (IDS)](https://github.com/compnerd/ids) tool, followed formatting with `git clang-format`. The bulk of this change is manual additions of `LLVM_ABI` to `LLVMInitializeX` functions defined in .cpp files under llvm/lib/Target. Adding `LLVM_ABI` to the function implementation is required here because they do not `#include "llvm/Support/TargetSelect.h"`, which contains the declarations for this functions and was already updated with `LLVM_ABI` in a previous patch. I considered patching these files with `#include "llvm/Support/TargetSelect.h"` instead, but since TargetSelect.h is a large file with a bunch of preprocessor x-macro stuff in it I was concerned it would unnecessarily impact compile times. In addition, a number of unit tests under llvm/unittests/Target required additional dependencies to make them build correctly against the LLVM DLL on Windows using MSVC. ## Validation Local builds and tests to validate cross-platform compatibility. This included llvm, clang, and lldb on the following configurations: - Windows with MSVC - Windows with Clang - Linux with GCC - Linux with Clang - Darwin with Clang
98 lines
3.4 KiB
C++
98 lines
3.4 KiB
C++
//===-- MSP430MCTargetDesc.cpp - MSP430 Target Descriptions ---------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file provides MSP430 specific target descriptions.
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//
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//===----------------------------------------------------------------------===//
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#include "MSP430MCTargetDesc.h"
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#include "MSP430InstPrinter.h"
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#include "MSP430MCAsmInfo.h"
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#include "TargetInfo/MSP430TargetInfo.h"
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#include "llvm/MC/MCDwarf.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCRegisterInfo.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/MC/TargetRegistry.h"
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#include "llvm/Support/Compiler.h"
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using namespace llvm;
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#define GET_INSTRINFO_MC_DESC
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#define ENABLE_INSTR_PREDICATE_VERIFIER
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#include "MSP430GenInstrInfo.inc"
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#define GET_SUBTARGETINFO_MC_DESC
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#include "MSP430GenSubtargetInfo.inc"
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#define GET_REGINFO_MC_DESC
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#include "MSP430GenRegisterInfo.inc"
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static MCInstrInfo *createMSP430MCInstrInfo() {
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MCInstrInfo *X = new MCInstrInfo();
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InitMSP430MCInstrInfo(X);
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return X;
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}
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static MCRegisterInfo *createMSP430MCRegisterInfo(const Triple &TT) {
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MCRegisterInfo *X = new MCRegisterInfo();
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InitMSP430MCRegisterInfo(X, MSP430::PC);
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return X;
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}
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static MCAsmInfo *createMSP430MCAsmInfo(const MCRegisterInfo &MRI,
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const Triple &TT,
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const MCTargetOptions &Options) {
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MCAsmInfo *MAI = new MSP430MCAsmInfo(TT);
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// Initialize initial frame state.
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int stackGrowth = -2;
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// Initial state of the frame pointer is sp+ptr_size.
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MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa(
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nullptr, MRI.getDwarfRegNum(MSP430::SP, true), -stackGrowth);
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MAI->addInitialFrameState(Inst);
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// Add return address to move list
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MCCFIInstruction Inst2 = MCCFIInstruction::createOffset(
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nullptr, MRI.getDwarfRegNum(MSP430::PC, true), stackGrowth);
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MAI->addInitialFrameState(Inst2);
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return MAI;
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}
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static MCSubtargetInfo *
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createMSP430MCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
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return createMSP430MCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS);
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}
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static MCInstPrinter *createMSP430MCInstPrinter(const Triple &T,
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unsigned SyntaxVariant,
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const MCAsmInfo &MAI,
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const MCInstrInfo &MII,
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const MCRegisterInfo &MRI) {
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if (SyntaxVariant == 0)
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return new MSP430InstPrinter(MAI, MII, MRI);
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return nullptr;
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}
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extern "C" LLVM_ABI LLVM_EXTERNAL_VISIBILITY void
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LLVMInitializeMSP430TargetMC() {
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Target &T = getTheMSP430Target();
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TargetRegistry::RegisterMCAsmInfo(T, createMSP430MCAsmInfo);
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TargetRegistry::RegisterMCInstrInfo(T, createMSP430MCInstrInfo);
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TargetRegistry::RegisterMCRegInfo(T, createMSP430MCRegisterInfo);
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TargetRegistry::RegisterMCSubtargetInfo(T, createMSP430MCSubtargetInfo);
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TargetRegistry::RegisterMCInstPrinter(T, createMSP430MCInstPrinter);
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TargetRegistry::RegisterMCCodeEmitter(T, createMSP430MCCodeEmitter);
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TargetRegistry::RegisterMCAsmBackend(T, createMSP430MCAsmBackend);
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TargetRegistry::RegisterObjectTargetStreamer(
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T, createMSP430ObjectTargetStreamer);
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}
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