Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/lib/Target/ARC/ARCTargetMachine.cpp

@@ -0,0 +1,94 @@
+//===- ARCTargetMachine.cpp - Define TargetMachine for ARC ------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//
+//===----------------------------------------------------------------------===//
+
+#include "ARCTargetMachine.h"
+#include "ARC.h"
+#include "ARCTargetTransformInfo.h"
+#include "llvm/CodeGen/Passes.h"
+#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
+#include "llvm/CodeGen/TargetPassConfig.h"
+#include "llvm/Support/TargetRegistry.h"
+
+using namespace llvm;
+
+static Reloc::Model getRelocModel(Optional<Reloc::Model> RM) {
+  if (!RM.hasValue())
+    return Reloc::Static;
+  return *RM;
+}
+
+static CodeModel::Model getEffectiveCodeModel(Optional<CodeModel::Model> CM) {
+  if (CM)
+    return *CM;
+  return CodeModel::Small;
+}
+
+/// ARCTargetMachine ctor - Create an ILP32 architecture model
+ARCTargetMachine::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)
+    : LLVMTargetMachine(T,
+                        "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-"
+                        "f32:32:32-i64:32-f64:32-a:0:32-n32",
+                        TT, CPU, FS, Options, getRelocModel(RM),
+                        getEffectiveCodeModel(CM), OL),
+      TLOF(make_unique<TargetLoweringObjectFileELF>()),
+      Subtarget(TT, CPU, FS, *this) {
+  initAsmInfo();
+}
+
+ARCTargetMachine::~ARCTargetMachine() = default;
+
+namespace {
+
+/// ARC Code Generator Pass Configuration Options.
+class ARCPassConfig : public TargetPassConfig {
+public:
+  ARCPassConfig(ARCTargetMachine &TM, PassManagerBase &PM)
+      : TargetPassConfig(TM, PM) {}
+
+  ARCTargetMachine &getARCTargetMachine() const {
+    return getTM<ARCTargetMachine>();
+  }
+
+  bool addInstSelector() override;
+  void addPreEmitPass() override;
+  void addPreRegAlloc() override;
+};
+
+} // end anonymous namespace
+
+TargetPassConfig *ARCTargetMachine::createPassConfig(PassManagerBase &PM) {
+  return new ARCPassConfig(*this, PM);
+}
+
+bool ARCPassConfig::addInstSelector() {
+  addPass(createARCISelDag(getARCTargetMachine(), getOptLevel()));
+  return false;
+}
+
+void ARCPassConfig::addPreEmitPass() { addPass(createARCBranchFinalizePass()); }
+
+void ARCPassConfig::addPreRegAlloc() { addPass(createARCExpandPseudosPass()); }
+
+// Force static initialization.
+extern "C" void LLVMInitializeARCTarget() {
+  RegisterTargetMachine<ARCTargetMachine> X(getTheARCTarget());
+}
+
+TargetTransformInfo
+ARCTargetMachine::getTargetTransformInfo(const Function &F) {
+  return TargetTransformInfo(ARCTTIImpl(this, F));
+}