llvm/lib/Target/XCore/XCoreTargetMachine.cpp
Reid Kleckner d12434058d Add out of line virtual destructors to all LLVMTargetMachine subclasses
These recently all grew a unique_ptr<TargetLoweringObjectFile> member in
r221878.  When anyone calls a virtual method of a class, clang-cl
requires all virtual methods to be semantically valid. This includes the
implicit virtual destructor, which triggers instantiation of the
unique_ptr destructor, which fails because the type being deleted is
incomplete.

This is just part of the ongoing saga of PR20337, which is affecting
Blink as well. Because the MSVC ABI doesn't have key functions, we end
up referencing the vtable and implicit destructor on any virtual call
through a class. We don't actually end up emitting the dtor, so it'd be
good if we could avoid this unneeded type completion work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222480 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-20 23:37:18 +00:00

92 lines
2.8 KiB
C++

//===-- XCoreTargetMachine.cpp - Define TargetMachine for XCore -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
#include "XCoreTargetMachine.h"
#include "XCoreTargetObjectFile.h"
#include "XCore.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/Module.h"
#include "llvm/PassManager.h"
#include "llvm/Support/TargetRegistry.h"
using namespace llvm;
/// XCoreTargetMachine ctor - Create an ILP32 architecture model
///
XCoreTargetMachine::XCoreTargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
const TargetOptions &Options,
Reloc::Model RM, CodeModel::Model CM,
CodeGenOpt::Level OL)
: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
TLOF(make_unique<XCoreTargetObjectFile>()),
Subtarget(TT, CPU, FS, *this) {
initAsmInfo();
}
XCoreTargetMachine::~XCoreTargetMachine() {}
namespace {
/// XCore Code Generator Pass Configuration Options.
class XCorePassConfig : public TargetPassConfig {
public:
XCorePassConfig(XCoreTargetMachine *TM, PassManagerBase &PM)
: TargetPassConfig(TM, PM) {}
XCoreTargetMachine &getXCoreTargetMachine() const {
return getTM<XCoreTargetMachine>();
}
void addIRPasses() override;
bool addPreISel() override;
bool addInstSelector() override;
bool addPreEmitPass() override;
};
} // namespace
TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM) {
return new XCorePassConfig(this, PM);
}
void XCorePassConfig::addIRPasses() {
addPass(createAtomicExpandPass(&getXCoreTargetMachine()));
TargetPassConfig::addIRPasses();
}
bool XCorePassConfig::addPreISel() {
addPass(createXCoreLowerThreadLocalPass());
return false;
}
bool XCorePassConfig::addInstSelector() {
addPass(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel()));
return false;
}
bool XCorePassConfig::addPreEmitPass() {
addPass(createXCoreFrameToArgsOffsetEliminationPass());
return false;
}
// Force static initialization.
extern "C" void LLVMInitializeXCoreTarget() {
RegisterTargetMachine<XCoreTargetMachine> X(TheXCoreTarget);
}
void XCoreTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
// Add first the target-independent BasicTTI pass, then our XCore pass. This
// allows the XCore pass to delegate to the target independent layer when
// appropriate.
PM.add(createBasicTargetTransformInfoPass(this));
PM.add(createXCoreTargetTransformInfoPass(this));
}