Initial checkin of the rest of the skeleton target

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14874 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/Skeleton/SkeletonTargetMachine.cpp

@@ -0,0 +1,58 @@
+//===-- SkeletonTargetMachine.cpp - Define TargetMachine for Skeleton -----===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+// 
+//
+//===----------------------------------------------------------------------===//
+
+#include "SkeletonTargetMachine.h"
+#include "Skeleton.h"
+#include "llvm/Module.h"
+#include "llvm/PassManager.h"
+#include "llvm/Target/TargetOptions.h"
+#include "llvm/Target/TargetMachineRegistry.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/Passes.h"
+using namespace llvm;
+
+namespace {
+  // Register the target.
+  RegisterTarget<SkeletonTargetMachine> X("skeleton",
+                                          "  Target Skeleton (unusable)");
+}
+
+/// SkeletonTargetMachine ctor - Create an ILP32 architecture model
+///
+SkeletonTargetMachine::SkeletonTargetMachine(const Module &M,
+                                           IntrinsicLowering *IL)
+  : TargetMachine("Skeleton", IL, true, 4, 4, 4, 4, 4),
+    FrameInfo(TargetFrameInfo::StackGrowsDown, 8, -4), JITInfo(*this) {
+}
+
+/// addPassesToEmitAssembly - Add passes to the specified pass manager
+/// to implement a static compiler for this target.
+///
+bool SkeletonTargetMachine::addPassesToEmitAssembly(PassManager &PM,
+					       std::ostream &Out) {
+  // <insert instruction selector passes here>
+  PM.add(createRegisterAllocator());
+  PM.add(createPrologEpilogCodeInserter());
+  // <insert assembly code output passes here>
+  PM.add(createMachineCodeDeleter());
+  return true; // change to `return false' when this actually works.
+}
+
+/// addPassesToJITCompile - Add passes to the specified pass manager to
+/// implement a fast dynamic compiler for this target.
+///
+void SkeletonJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
+  // <insert instruction selector passes here>
+  PM.add(createRegisterAllocator());
+  PM.add(createPrologEpilogCodeInserter());
+}
+