RegAlloc superpass: includes phi elimination, coalescing, and scheduling.

[oota-llvm.git] / lib / Target / TargetMachine.cpp

diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index 24e1e5a547a6e0f63267282f0429ec6df0f0cc7c..b4969ca011b71b2c4c016b49917eb64d5f2f5498 100644 (file)
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -2,8 +2,8 @@
 //
 //                     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.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -11,9 +11,9 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/MC/MCAsmInfo.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetOptions.h"
-#include "llvm/Type.h"
 #include "llvm/Support/CommandLine.h"
 using namespace llvm;
 
@@ -22,68 +22,87 @@ using namespace llvm;
 //
 
 namespace llvm {
-  bool PrintMachineCode;
-  bool NoFramePointerElim;
-  bool NoExcessFPPrecision;
-  bool UnsafeFPMath;
-  Reloc::Model RelocationModel;
-};
-namespace {
-  cl::opt<bool, true> PrintCode("print-machineinstrs",
-    cl::desc("Print generated machine code"),
-    cl::location(PrintMachineCode), cl::init(false));
-
-  cl::opt<bool, true>
-    DisableFPElim("disable-fp-elim",
-                  cl::desc("Disable frame pointer elimination optimization"),
-                  cl::location(NoFramePointerElim),
-                  cl::init(false));
-  cl::opt<bool, true>
-  DisableExcessPrecision("disable-excess-fp-precision",
-               cl::desc("Disable optimizations that may increase FP precision"),
-               cl::location(NoExcessFPPrecision),
-               cl::init(false));
-  cl::opt<bool, true>
-  EnableUnsafeFPMath("enable-unsafe-fp-math",
-               cl::desc("Enable optimizations that may decrease FP precision"),
-               cl::location(UnsafeFPMath),
-               cl::init(false));
-  cl::opt<llvm::Reloc::Model, true>
-  DefRelocationModel(
-    "relocation-model",
-    cl::desc("Choose relocation model"),
-    cl::location(RelocationModel),
-    cl::init(Reloc::Default),
-    cl::values(
-      clEnumValN(Reloc::Default, "default",
-                 "Target default relocation model"),
-      clEnumValN(Reloc::Static, "static",
-                 "Non-relocatable code"),
-      clEnumValN(Reloc::PIC, "pic",
-                 "Fully relocatable, position independent code"),
-      clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic",
-                 "Relocatable external references, non-relocatable code"),
-      clEnumValEnd));
-};
+  bool HasDivModLibcall;
+  bool AsmVerbosityDefault(false);
+}
+
+static cl::opt<bool>
+DataSections("fdata-sections",
+  cl::desc("Emit data into separate sections"),
+  cl::init(false));
+static cl::opt<bool>
+FunctionSections("ffunction-sections",
+  cl::desc("Emit functions into separate sections"),
+  cl::init(false));
 
 //---------------------------------------------------------------------------
 // TargetMachine Class
 //
 
-TargetMachine::TargetMachine(const std::string &name, const Module &M)
-  : Name(name) {
+TargetMachine::TargetMachine(const Target &T,
+                             StringRef TT, StringRef CPU, StringRef FS,
+                             const TargetOptions &Options)
+  : TheTarget(T), TargetTriple(TT), TargetCPU(CPU), TargetFS(FS),
+    CodeGenInfo(0), AsmInfo(0),
+    MCRelaxAll(false),
+    MCNoExecStack(false),
+    MCSaveTempLabels(false),
+    MCUseLoc(true),
+    MCUseCFI(true),
+    MCUseDwarfDirectory(false),
+    Options(Options) {
 }
 
 TargetMachine::~TargetMachine() {
+  delete CodeGenInfo;
+  delete AsmInfo;
 }
 
 /// getRelocationModel - Returns the code generation relocation model. The
 /// choices are static, PIC, and dynamic-no-pic, and target default.
-Reloc::Model TargetMachine::getRelocationModel() {
-  return RelocationModel;
+Reloc::Model TargetMachine::getRelocationModel() const {
+  if (!CodeGenInfo)
+    return Reloc::Default;
+  return CodeGenInfo->getRelocationModel();
 }
 
-/// setRelocationModel - Sets the code generation relocation model.
-void TargetMachine::setRelocationModel(Reloc::Model Model) {
-  RelocationModel = Model;
+/// getCodeModel - Returns the code model. The choices are small, kernel,
+/// medium, large, and target default.
+CodeModel::Model TargetMachine::getCodeModel() const {
+  if (!CodeGenInfo)
+    return CodeModel::Default;
+  return CodeGenInfo->getCodeModel();
 }
+
+/// getOptLevel - Returns the optimization level: None, Less,
+/// Default, or Aggressive.
+CodeGenOpt::Level TargetMachine::getOptLevel() const {
+  if (!CodeGenInfo)
+    return CodeGenOpt::Default;
+  return CodeGenInfo->getOptLevel();
+}
+
+bool TargetMachine::getAsmVerbosityDefault() {
+  return AsmVerbosityDefault;
+}
+
+void TargetMachine::setAsmVerbosityDefault(bool V) {
+  AsmVerbosityDefault = V;
+}
+
+bool TargetMachine::getFunctionSections() {
+  return FunctionSections;
+}
+
+bool TargetMachine::getDataSections() {
+  return DataSections;
+}
+
+void TargetMachine::setFunctionSections(bool V) {
+  FunctionSections = V;
+}
+
+void TargetMachine::setDataSections(bool V) {
+  DataSections = V;
+}
+