X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FTargetMachine.cpp;h=74c90ed54e2f2c96602fcc422436418cbaa70156;hb=b8a45c27986806220c6b112e5b6ee7baa1ab2efe;hp=e7630b4ab34660320601ba92ad2a373c8f397730;hpb=d0fde30ce850b78371fd1386338350591f9ff494;p=oota-llvm.git

diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index e7630b4ab34..74c90ed54e2 100644
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -1,55 +1,103 @@
 //===-- TargetMachine.cpp - General Target Information ---------------------==//
-// 
+//
 //                     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 describes the general parts of a Target machine.
-// This file also implements TargetCacheInfo.
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetCacheInfo.h"
+#include "llvm/Target/TargetOptions.h"
 #include "llvm/Type.h"
-
-namespace llvm {
+#include "llvm/Support/CommandLine.h"
+using namespace llvm;
 
 //---------------------------------------------------------------------------
-// class TargetMachine
-// 
-// Purpose:
-//   Machine description.
-// 
-//---------------------------------------------------------------------------
+// Command-line options that tend to be useful on more than one back-end.
+//
+
+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));
+};
 
-// function TargetMachine::findOptimalStorageSize 
-// 
-unsigned TargetMachine::findOptimalStorageSize(const Type *Ty) const {
-  // All integer types smaller than ints promote to 4 byte integers.
-  if (Ty->isIntegral() && Ty->getPrimitiveSize() < 4)
-    return 4;
+//---------------------------------------------------------------------------
+// TargetMachine Class
+//
+TargetMachine::TargetMachine(const std::string &name, bool LittleEndian,
+                             unsigned char PtrSize, unsigned char PtrAl,
+                             unsigned char DoubleAl, unsigned char FloatAl,
+                             unsigned char LongAl, unsigned char IntAl,
+                             unsigned char ShortAl, unsigned char ByteAl,
+                             unsigned char BoolAl)
+  : Name(name), DataLayout(name, LittleEndian,
+                           PtrSize, PtrAl, DoubleAl, FloatAl, LongAl,
+                           IntAl, ShortAl, ByteAl, BoolAl) {
+}
 
-  return DataLayout.getTypeSize(Ty);
+TargetMachine::TargetMachine(const std::string &name, const TargetData &TD)
+  : Name(name), DataLayout(TD) {
 }
 
+TargetMachine::TargetMachine(const std::string &name, const Module &M)
+  : Name(name), DataLayout(name, &M) {
+}
 
-//---------------------------------------------------------------------------
-// class TargetCacheInfo 
-// 
-// Purpose:
-//   Describes properties of the target cache architecture.
-//---------------------------------------------------------------------------
+TargetMachine::~TargetMachine() {
+}
 
-void TargetCacheInfo::Initialize() {
-  numLevels = 2;
-  cacheLineSizes.push_back(16);  cacheLineSizes.push_back(32); 
-  cacheSizes.push_back(1 << 15); cacheSizes.push_back(1 << 20);
-  cacheAssoc.push_back(1);       cacheAssoc.push_back(4);
+/// 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;
 }
 
-} // End llvm namespace
+/// setRelocationModel - Sets the code generation relocation model.
+void TargetMachine::setRelocationModel(Reloc::Model Model) {
+  RelocationModel = Model;
+}