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https://github.com/c64scene-ar/llvm-6502.git
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8e0f67dcec
Before this patch any program that wanted to know the final symbol name of a GlobalValue had to link with Target. This patch implements a compromise solution where the mangler uses DataLayout. This way, any tool that already links with Target (llc, clang) gets the exact behavior as before and new IR files can be mangled without linking with Target. With this patch the mangler is constructed with just a DataLayout and DataLayout is extended to include the information the Mangler needs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198438 91177308-0d34-0410-b5e6-96231b3b80d8
83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
//===-- AArch64TargetMachine.cpp - Define TargetMachine for AArch64 -------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the implementation of the AArch64TargetMachine
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// methods. Principally just setting up the passes needed to generate correct
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// code on this architecture.
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//
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//===----------------------------------------------------------------------===//
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#include "AArch64.h"
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#include "AArch64TargetMachine.h"
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#include "MCTargetDesc/AArch64MCTargetDesc.h"
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#include "llvm/PassManager.h"
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/Support/TargetRegistry.h"
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using namespace llvm;
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extern "C" void LLVMInitializeAArch64Target() {
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RegisterTargetMachine<AArch64TargetMachine> X(TheAArch64Target);
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}
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AArch64TargetMachine::AArch64TargetMachine(const Target &T, StringRef TT,
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StringRef CPU, StringRef FS,
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const TargetOptions &Options,
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Reloc::Model RM, CodeModel::Model CM,
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CodeGenOpt::Level OL)
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: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
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Subtarget(TT, CPU, FS),
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InstrInfo(Subtarget),
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DL("e-m:e-i64:64-i128:128-n32:64-S128"),
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TLInfo(*this),
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TSInfo(*this),
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FrameLowering(Subtarget) {
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initAsmInfo();
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}
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namespace {
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/// AArch64 Code Generator Pass Configuration Options.
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class AArch64PassConfig : public TargetPassConfig {
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public:
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AArch64PassConfig(AArch64TargetMachine *TM, PassManagerBase &PM)
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: TargetPassConfig(TM, PM) {}
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AArch64TargetMachine &getAArch64TargetMachine() const {
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return getTM<AArch64TargetMachine>();
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}
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const AArch64Subtarget &getAArch64Subtarget() const {
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return *getAArch64TargetMachine().getSubtargetImpl();
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}
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virtual bool addInstSelector();
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virtual bool addPreEmitPass();
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};
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} // namespace
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TargetPassConfig *AArch64TargetMachine::createPassConfig(PassManagerBase &PM) {
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return new AArch64PassConfig(this, PM);
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}
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bool AArch64PassConfig::addPreEmitPass() {
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addPass(&UnpackMachineBundlesID);
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addPass(createAArch64BranchFixupPass());
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return true;
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}
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bool AArch64PassConfig::addInstSelector() {
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addPass(createAArch64ISelDAG(getAArch64TargetMachine(), getOptLevel()));
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// For ELF, cleanup any local-dynamic TLS accesses.
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if (getAArch64Subtarget().isTargetELF() && getOptLevel() != CodeGenOpt::None)
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addPass(createAArch64CleanupLocalDynamicTLSPass());
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return false;
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}
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