[x86] Add basic support for .code16

[oota-llvm.git] / lib / Target / Sparc / SparcTargetMachine.cpp

diff --git a/lib/Target/Sparc/SparcTargetMachine.cpp b/lib/Target/Sparc/SparcTargetMachine.cpp
index 2949048d1713000bbbfa6999c328e537f937206a..83f3474759b62d7719191400c3cdb766a1cac360 100644 (file)
--- a/lib/Target/Sparc/SparcTargetMachine.cpp
+++ b/lib/Target/Sparc/SparcTargetMachine.cpp
@@ -10,58 +10,122 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "Sparc.h"
-#include "SparcMCAsmInfo.h"
 #include "SparcTargetMachine.h"
+#include "Sparc.h"
+#include "llvm/CodeGen/Passes.h"
 #include "llvm/PassManager.h"
-#include "llvm/Target/TargetRegistry.h"
+#include "llvm/Support/TargetRegistry.h"
 using namespace llvm;
 
 extern "C" void LLVMInitializeSparcTarget() {
   // Register the target.
   RegisterTargetMachine<SparcV8TargetMachine> X(TheSparcTarget);
   RegisterTargetMachine<SparcV9TargetMachine> Y(TheSparcV9Target);
+}
+
+static std::string computeDataLayout(const SparcSubtarget &ST) {
+  // Sparc is big endian.
+  std::string Ret = "E-m:e";
+
+  // Some ABIs have 32bit pointers.
+  if (!ST.is64Bit())
+    Ret += "-p:32:32";
 
-  RegisterAsmInfo<SparcELFMCAsmInfo> A(TheSparcTarget);
-  RegisterAsmInfo<SparcELFMCAsmInfo> B(TheSparcV9Target);
+  // Alignments for 64 bit integers.
+  Ret += "-i64:64";
 
+  // On SparcV9 128 floats are aligned to 128 bits, on others only to 64.
+  // On SparcV9 registers can hold 64 or 32 bits, on others only 32.
+  if (ST.is64Bit())
+    Ret += "-n32:64";
+  else
+    Ret += "-f128:64-n32";
+
+  if (ST.is64Bit())
+    Ret += "-S128";
+  else
+    Ret += "-S64";
+
+  return Ret;
 }
 
 /// SparcTargetMachine ctor - Create an ILP32 architecture model
 ///
-SparcTargetMachine::SparcTargetMachine(const Target &T, const std::string &TT, 
-                                       const std::string &FS, bool is64bit)
-  : LLVMTargetMachine(T, TT),
-    Subtarget(TT, FS, is64bit),
-    DataLayout(Subtarget.getDataLayout()),
-    TLInfo(*this), TSInfo(*this), InstrInfo(Subtarget),
-    FrameInfo(Subtarget) {
+SparcTargetMachine::SparcTargetMachine(const Target &T, StringRef TT,
+                                       StringRef CPU, StringRef FS,
+                                       const TargetOptions &Options,
+                                       Reloc::Model RM, CodeModel::Model CM,
+                                       CodeGenOpt::Level OL,
+                                       bool is64bit)
+  : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
+    Subtarget(TT, CPU, FS, is64bit),
+    DL(computeDataLayout(Subtarget)),
+    InstrInfo(Subtarget),
+    TLInfo(*this), TSInfo(*this),
+    FrameLowering(Subtarget) {
+  initAsmInfo();
 }
 
-bool SparcTargetMachine::addInstSelector(PassManagerBase &PM,
-                                         CodeGenOpt::Level OptLevel) {
-  PM.add(createSparcISelDag(*this));
+namespace {
+/// Sparc Code Generator Pass Configuration Options.
+class SparcPassConfig : public TargetPassConfig {
+public:
+  SparcPassConfig(SparcTargetMachine *TM, PassManagerBase &PM)
+    : TargetPassConfig(TM, PM) {}
+
+  SparcTargetMachine &getSparcTargetMachine() const {
+    return getTM<SparcTargetMachine>();
+  }
+
+  virtual bool addInstSelector();
+  virtual bool addPreEmitPass();
+};
+} // namespace
+
+TargetPassConfig *SparcTargetMachine::createPassConfig(PassManagerBase &PM) {
+  return new SparcPassConfig(this, PM);
+}
+
+bool SparcPassConfig::addInstSelector() {
+  addPass(createSparcISelDag(getSparcTargetMachine()));
+  return false;
+}
+
+bool SparcTargetMachine::addCodeEmitter(PassManagerBase &PM,
+                                        JITCodeEmitter &JCE) {
+  // Machine code emitter pass for Sparc.
+  PM.add(createSparcJITCodeEmitterPass(*this, JCE));
   return false;
 }
 
 /// addPreEmitPass - This pass may be implemented by targets that want to run
 /// passes immediately before machine code is emitted.  This should return
 /// true if -print-machineinstrs should print out the code after the passes.
-bool SparcTargetMachine::addPreEmitPass(PassManagerBase &PM,
-                                        CodeGenOpt::Level OptLevel){
-  PM.add(createSparcFPMoverPass(*this));
-  PM.add(createSparcDelaySlotFillerPass(*this));
+bool SparcPassConfig::addPreEmitPass(){
+  addPass(createSparcDelaySlotFillerPass(getSparcTargetMachine()));
   return true;
 }
 
+void SparcV8TargetMachine::anchor() { }
+
 SparcV8TargetMachine::SparcV8TargetMachine(const Target &T,
-                                           const std::string &TT, 
-                                           const std::string &FS)
-  : SparcTargetMachine(T, TT, FS, false) {
+                                           StringRef TT, StringRef CPU,
+                                           StringRef FS,
+                                           const TargetOptions &Options,
+                                           Reloc::Model RM,
+                                           CodeModel::Model CM,
+                                           CodeGenOpt::Level OL)
+  : SparcTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, false) {
 }
 
-SparcV9TargetMachine::SparcV9TargetMachine(const Target &T, 
-                                           const std::string &TT, 
-                                           const std::string &FS)
-  : SparcTargetMachine(T, TT, FS, true) {
+void SparcV9TargetMachine::anchor() { }
+
+SparcV9TargetMachine::SparcV9TargetMachine(const Target &T,
+                                           StringRef TT,  StringRef CPU,
+                                           StringRef FS,
+                                           const TargetOptions &Options,
+                                           Reloc::Model RM,
+                                           CodeModel::Model CM,
+                                           CodeGenOpt::Level OL)
+  : SparcTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL, true) {
 }