[llvm-commits] [llvm] r165665 - in /llvm/trunk: include/llvm/ include/llvm/Analysis/ include/llvm/CodeGen/ include/llvm/Target/ include/llvm/Transforms/ lib/Analysis/ lib/CodeGen/ lib/Target/ lib/Target/ARM/ lib/Target/CellSPU/ lib/Target/Hexagon

David Blaikie dblaikie at gmail.com
Wed Oct 10 15:40:46 PDT 2012


On Wed, Oct 10, 2012 at 3:04 PM, Nadav Rotem <nrotem at apple.com> wrote:
> Author: nadav
> Date: Wed Oct 10 17:04:55 2012
> New Revision: 165665
>
> URL: http://llvm.org/viewvc/llvm-project?rev=165665&view=rev
> Log:
>
> Add a new interface to allow IR-level passes to access codegen-specific information.
>
>
> Added:
>     llvm/trunk/include/llvm/CodeGen/CommandFlags.h
>     llvm/trunk/include/llvm/Target/TargetTransformImpl.h
>     llvm/trunk/include/llvm/TargetTransformInfo.h
>     llvm/trunk/lib/Target/TargetTransformImpl.cpp
>     llvm/trunk/lib/VMCore/TargetTransformInfo.cpp
> Modified:
>     llvm/trunk/include/llvm/Analysis/ScalarEvolutionExpander.h
>     llvm/trunk/include/llvm/InitializePasses.h
>     llvm/trunk/include/llvm/Target/TargetMachine.h
>     llvm/trunk/include/llvm/Transforms/Scalar.h
>     llvm/trunk/lib/Analysis/ScalarEvolutionExpander.cpp
>     llvm/trunk/lib/CodeGen/Passes.cpp
>     llvm/trunk/lib/Target/ARM/ARMTargetMachine.cpp
>     llvm/trunk/lib/Target/ARM/ARMTargetMachine.h
>     llvm/trunk/lib/Target/CMakeLists.txt
>     llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.cpp
>     llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.h
>     llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.cpp
>     llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.h
>     llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.cpp
>     llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.h
>     llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.cpp
>     llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.h
>     llvm/trunk/lib/Target/Mips/MipsTargetMachine.cpp
>     llvm/trunk/lib/Target/Mips/MipsTargetMachine.h
>     llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.cpp
>     llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.h
>     llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp
>     llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h
>     llvm/trunk/lib/Target/Sparc/SparcTargetMachine.cpp
>     llvm/trunk/lib/Target/Sparc/SparcTargetMachine.h
>     llvm/trunk/lib/Target/Target.cpp
>     llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
>     llvm/trunk/lib/Target/X86/X86TargetMachine.h
>     llvm/trunk/lib/Target/XCore/XCoreTargetMachine.cpp
>     llvm/trunk/lib/Target/XCore/XCoreTargetMachine.h
>     llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp
>     llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp
>     llvm/trunk/lib/VMCore/CMakeLists.txt
>     llvm/trunk/tools/llc/llc.cpp
>     llvm/trunk/tools/opt/CMakeLists.txt
>     llvm/trunk/tools/opt/LLVMBuild.txt
>     llvm/trunk/tools/opt/Makefile
>     llvm/trunk/tools/opt/opt.cpp
>
> Modified: llvm/trunk/include/llvm/Analysis/ScalarEvolutionExpander.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Analysis/ScalarEvolutionExpander.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/include/llvm/Analysis/ScalarEvolutionExpander.h (original)
> +++ llvm/trunk/include/llvm/Analysis/ScalarEvolutionExpander.h Wed Oct 10 17:04:55 2012
> @@ -22,7 +22,7 @@
>  #include <set>
>
>  namespace llvm {
> -  class TargetLowering;
> +  class ScalarTargetTransformInfo;
>
>    /// Return true if the given expression is safe to expand in the sense that
>    /// all materialized values are safe to speculate.
> @@ -129,7 +129,7 @@
>      /// representative. Return the number of phis eliminated.
>      unsigned replaceCongruentIVs(Loop *L, const DominatorTree *DT,
>                                   SmallVectorImpl<WeakVH> &DeadInsts,
> -                                 const TargetLowering *TLI = NULL);
> +                                 const ScalarTargetTransformInfo *STTI = NULL);
>
>      /// expandCodeFor - Insert code to directly compute the specified SCEV
>      /// expression into the program.  The inserted code is inserted into the
>
> Added: llvm/trunk/include/llvm/CodeGen/CommandFlags.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/CommandFlags.h?rev=165665&view=auto
> ==============================================================================
> --- llvm/trunk/include/llvm/CodeGen/CommandFlags.h (added)
> +++ llvm/trunk/include/llvm/CodeGen/CommandFlags.h Wed Oct 10 17:04:55 2012
> @@ -0,0 +1,228 @@
> +//===-- CommandFlags.h - Register Coalescing Interface ----------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +//
> +// This file contains codegen-specific flags that are shared between different
> +// command line tools. The tools "llc" and "opt" both use this file to prevent
> +// flag duplication.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_CODEGEN_COMMAND_LINE_FLAGS_H
> +#define LLVM_CODEGEN_COMMAND_LINE_FLAGS_H
> +
> +#include "llvm/Support/CommandLine.h"
> +#include "llvm/Support/CodeGen.h"
> +#include "llvm/Target/TargetMachine.h"
> +
> +#include <string>
> +using namespace llvm;
> +
> +cl::opt<std::string>
> +MArch("march", cl::desc("Architecture to generate code for (see --version)"));
> +
> +cl::opt<std::string>
> +MCPU("mcpu",
> +     cl::desc("Target a specific cpu type (-mcpu=help for details)"),
> +     cl::value_desc("cpu-name"),
> +     cl::init(""));
> +
> +cl::list<std::string>
> +MAttrs("mattr",
> +       cl::CommaSeparated,
> +       cl::desc("Target specific attributes (-mattr=help for details)"),
> +       cl::value_desc("a1,+a2,-a3,..."));
> +
> +cl::opt<Reloc::Model>
> +RelocModel("relocation-model",
> +           cl::desc("Choose relocation model"),
> +           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));
> +
> +cl::opt<llvm::CodeModel::Model>
> +CMModel("code-model",
> +        cl::desc("Choose code model"),
> +        cl::init(CodeModel::Default),
> +        cl::values(clEnumValN(CodeModel::Default, "default",
> +                              "Target default code model"),
> +                   clEnumValN(CodeModel::Small, "small",
> +                              "Small code model"),
> +                   clEnumValN(CodeModel::Kernel, "kernel",
> +                              "Kernel code model"),
> +                   clEnumValN(CodeModel::Medium, "medium",
> +                              "Medium code model"),
> +                   clEnumValN(CodeModel::Large, "large",
> +                              "Large code model"),
> +                   clEnumValEnd));
> +
> +cl::opt<bool>
> +RelaxAll("mc-relax-all",
> +         cl::desc("When used with filetype=obj, "
> +                  "relax all fixups in the emitted object file"));
> +
> +cl::opt<TargetMachine::CodeGenFileType>
> +FileType("filetype", cl::init(TargetMachine::CGFT_AssemblyFile),
> +  cl::desc("Choose a file type (not all types are supported by all targets):"),
> +  cl::values(
> +             clEnumValN(TargetMachine::CGFT_AssemblyFile, "asm",
> +                        "Emit an assembly ('.s') file"),
> +             clEnumValN(TargetMachine::CGFT_ObjectFile, "obj",
> +                        "Emit a native object ('.o') file"),
> +             clEnumValN(TargetMachine::CGFT_Null, "null",
> +                        "Emit nothing, for performance testing"),
> +             clEnumValEnd));
> +
> +cl::opt<bool> DisableDotLoc("disable-dot-loc", cl::Hidden,
> +                            cl::desc("Do not use .loc entries"));
> +
> +cl::opt<bool> DisableCFI("disable-cfi", cl::Hidden,
> +                         cl::desc("Do not use .cfi_* directives"));
> +
> +cl::opt<bool> EnableDwarfDirectory("enable-dwarf-directory", cl::Hidden,
> +                  cl::desc("Use .file directives with an explicit directory."));
> +
> +cl::opt<bool>
> +DisableRedZone("disable-red-zone",
> +               cl::desc("Do not emit code that uses the red zone."),
> +               cl::init(false));
> +
> +cl::opt<bool>
> +EnableFPMAD("enable-fp-mad",
> +            cl::desc("Enable less precise MAD instructions to be generated"),
> +            cl::init(false));
> +
> +cl::opt<bool>
> +DisableFPElim("disable-fp-elim",
> +              cl::desc("Disable frame pointer elimination optimization"),
> +              cl::init(false));
> +
> +cl::opt<bool>
> +DisableFPElimNonLeaf("disable-non-leaf-fp-elim",
> +  cl::desc("Disable frame pointer elimination optimization for non-leaf funcs"),
> +  cl::init(false));
> +
> +cl::opt<bool>
> +EnableUnsafeFPMath("enable-unsafe-fp-math",
> +                cl::desc("Enable optimizations that may decrease FP precision"),
> +                cl::init(false));
> +
> +cl::opt<bool>
> +EnableNoInfsFPMath("enable-no-infs-fp-math",
> +                cl::desc("Enable FP math optimizations that assume no +-Infs"),
> +                cl::init(false));
> +
> +cl::opt<bool>
> +EnableNoNaNsFPMath("enable-no-nans-fp-math",
> +                   cl::desc("Enable FP math optimizations that assume no NaNs"),
> +                   cl::init(false));
> +
> +cl::opt<bool>
> +EnableHonorSignDependentRoundingFPMath("enable-sign-dependent-rounding-fp-math",
> +      cl::Hidden,
> +      cl::desc("Force codegen to assume rounding mode can change dynamically"),
> +      cl::init(false));
> +
> +cl::opt<bool>
> +GenerateSoftFloatCalls("soft-float",
> +                    cl::desc("Generate software floating point library calls"),
> +                    cl::init(false));
> +
> +cl::opt<llvm::FloatABI::ABIType>
> +FloatABIForCalls("float-abi",
> +                 cl::desc("Choose float ABI type"),
> +                 cl::init(FloatABI::Default),
> +                 cl::values(
> +                     clEnumValN(FloatABI::Default, "default",
> +                                "Target default float ABI type"),
> +                     clEnumValN(FloatABI::Soft, "soft",
> +                                "Soft float ABI (implied by -soft-float)"),
> +                     clEnumValN(FloatABI::Hard, "hard",
> +                                "Hard float ABI (uses FP registers)"),
> +                     clEnumValEnd));
> +
> +cl::opt<llvm::FPOpFusion::FPOpFusionMode>
> +FuseFPOps("fp-contract",
> +          cl::desc("Enable aggresive formation of fused FP ops"),
> +          cl::init(FPOpFusion::Standard),
> +          cl::values(
> +              clEnumValN(FPOpFusion::Fast, "fast",
> +                         "Fuse FP ops whenever profitable"),
> +              clEnumValN(FPOpFusion::Standard, "on",
> +                         "Only fuse 'blessed' FP ops."),
> +              clEnumValN(FPOpFusion::Strict, "off",
> +                         "Only fuse FP ops when the result won't be effected."),
> +              clEnumValEnd));
> +
> +cl::opt<bool>
> +DontPlaceZerosInBSS("nozero-initialized-in-bss",
> +              cl::desc("Don't place zero-initialized symbols into bss section"),
> +              cl::init(false));
> +
> +cl::opt<bool>
> +EnableGuaranteedTailCallOpt("tailcallopt",
> +  cl::desc("Turn fastcc calls into tail calls by (potentially) changing ABI."),
> +  cl::init(false));
> +
> +cl::opt<bool>
> +DisableTailCalls("disable-tail-calls",
> +                 cl::desc("Never emit tail calls"),
> +                 cl::init(false));
> +
> +cl::opt<unsigned>
> +OverrideStackAlignment("stack-alignment",
> +                       cl::desc("Override default stack alignment"),
> +                       cl::init(0));
> +
> +cl::opt<bool>
> +EnableRealignStack("realign-stack",
> +                   cl::desc("Realign stack if needed"),
> +                   cl::init(true));
> +
> +cl::opt<std::string>
> +TrapFuncName("trap-func", cl::Hidden,
> +        cl::desc("Emit a call to trap function rather than a trap instruction"),
> +        cl::init(""));
> +
> +cl::opt<bool>
> +EnablePIE("enable-pie",
> +          cl::desc("Assume the creation of a position independent executable."),
> +          cl::init(false));
> +
> +cl::opt<bool>
> +SegmentedStacks("segmented-stacks",
> +                cl::desc("Use segmented stacks if possible."),
> +                cl::init(false));
> +
> +cl::opt<bool>
> +UseInitArray("use-init-array",
> +             cl::desc("Use .init_array instead of .ctors."),
> +             cl::init(false));
> +
> +cl::opt<std::string> StopAfter("stop-after",
> +                            cl::desc("Stop compilation after a specific pass"),
> +                            cl::value_desc("pass-name"),
> +                                      cl::init(""));
> +cl::opt<std::string> StartAfter("start-after",
> +                          cl::desc("Resume compilation after a specific pass"),
> +                          cl::value_desc("pass-name"),
> +                          cl::init(""));
> +
> +cl::opt<unsigned>
> +SSPBufferSize("stack-protector-buffer-size", cl::init(8),
> +              cl::desc("Lower bound for a buffer to be considered for "
> +                       "stack protection"));
> +#endif
>
> Modified: llvm/trunk/include/llvm/InitializePasses.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/InitializePasses.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/include/llvm/InitializePasses.h (original)
> +++ llvm/trunk/include/llvm/InitializePasses.h Wed Oct 10 17:04:55 2012
> @@ -247,6 +247,7 @@
>  void initializeTailDuplicatePassPass(PassRegistry&);
>  void initializeTargetPassConfigPass(PassRegistry&);
>  void initializeDataLayoutPass(PassRegistry&);
> +void initializeTargetTransformInfoPass(PassRegistry&);
>  void initializeTargetLibraryInfoPass(PassRegistry&);
>  void initializeTwoAddressInstructionPassPass(PassRegistry&);
>  void initializeTypeBasedAliasAnalysisPass(PassRegistry&);
>
> Modified: llvm/trunk/include/llvm/Target/TargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/TargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/include/llvm/Target/TargetMachine.h (original)
> +++ llvm/trunk/include/llvm/Target/TargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -17,6 +17,8 @@
>  #include "llvm/Pass.h"
>  #include "llvm/Support/CodeGen.h"
>  #include "llvm/Target/TargetOptions.h"
> +#include "llvm/TargetTransformInfo.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>  #include "llvm/ADT/StringRef.h"
>  #include <cassert>
>  #include <string>
> @@ -107,6 +109,10 @@
>    virtual const TargetLowering    *getTargetLowering() const { return 0; }
>    virtual const TargetSelectionDAGInfo *getSelectionDAGInfo() const{ return 0; }
>    virtual const DataLayout             *getDataLayout() const { return 0; }
> +  virtual const ScalarTargetTransformInfo*
> +  getScalarTargetTransformInfo() const { return 0; }
> +  virtual const VectorTargetTransformInfo*
> +  getVectorTargetTransformInfo() const { return 0; }
>
>    /// getMCAsmInfo - Return target specific asm information.
>    ///
>
> Added: llvm/trunk/include/llvm/Target/TargetTransformImpl.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/TargetTransformImpl.h?rev=165665&view=auto
> ==============================================================================
> --- llvm/trunk/include/llvm/Target/TargetTransformImpl.h (added)
> +++ llvm/trunk/include/llvm/Target/TargetTransformImpl.h Wed Oct 10 17:04:55 2012
> @@ -0,0 +1,54 @@
> +//=- llvm/Target/TargetTransformImpl.h - Target Loop Trans Info----*- C++ -*-=//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +//
> +// This file contains the target-specific implementations of the
> +// TargetTransform interfaces.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_TARGET_TARGET_TRANSFORMATION_IMPL_H
> +#define LLVM_TARGET_TARGET_TRANSFORMATION_IMPL_H
> +
> +#include "llvm/TargetTransformInfo.h"
> +
> +namespace llvm {
> +
> +class TargetLowering;
> +
> +/// ScalarTargetTransformInfo - This is a default implementation for the
> +/// ScalarTargetTransformInfo interface. Different targets can implement
> +/// this interface differently.
> +class ScalarTargetTransformImpl : public ScalarTargetTransformInfo {
> +private:
> +  const TargetLowering *TLI;
> +
> +public:
> +  /// Ctor
> +  explicit ScalarTargetTransformImpl(const TargetLowering *TL): TLI(TL) {}
> +
> +  virtual bool isLegalAddImmediate(int64_t imm) const;
> +
> +  virtual bool isLegalICmpImmediate(int64_t imm) const;
> +
> +  virtual bool isLegalAddressingMode(const AddrMode &AM, Type *Ty) const;
> +
> +  virtual bool isTruncateFree(Type *Ty1, Type *Ty2) const;
> +
> +  virtual bool isTypeLegal(Type *Ty) const;
> +
> +  virtual unsigned getJumpBufAlignment() const;
> +
> +  virtual unsigned getJumpBufSize() const;
> +};
> +
> +class VectorTargetTransformImpl : public VectorTargetTransformInfo { };
> +
> +} // end llvm namespace
> +
> +#endif
>
> Added: llvm/trunk/include/llvm/TargetTransformInfo.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/TargetTransformInfo.h?rev=165665&view=auto
> ==============================================================================
> --- llvm/trunk/include/llvm/TargetTransformInfo.h (added)
> +++ llvm/trunk/include/llvm/TargetTransformInfo.h Wed Oct 10 17:04:55 2012
> @@ -0,0 +1,126 @@
> +//===- llvm/Transforms/TargetTransformInfo.h --------------------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +//
> +// This pass exposes codegen information to IR-level passes. Every
> +// transformation that uses codegen information is broken into three parts:
> +// 1. The IR-level analysis pass.
> +// 2. The IR-level transformation interface which provides the needed
> +//    information.
> +// 3. Codegen-level implementation which uses target-specific hooks.
> +//
> +// This file defines #2, which is the interface that IR-level transformations
> +// use for querying the codegen.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#ifndef LLVM_TRANSFORMS_TARGET_TRANSFORM_INTERFACE
> +#define LLVM_TRANSFORMS_TARGET_TRANSFORM_INTERFACE
> +
> +#include "llvm/Pass.h"
> +#include "llvm/AddressingMode.h"
> +#include "llvm/Support/DataTypes.h"
> +#include "llvm/Type.h"
> +
> +namespace llvm {
> +
> +class ScalarTargetTransformInfo;
> +class VectorTargetTransformInfo;
> +
> +/// TargetTransformInfo - This pass provides access to the codegen
> +/// interfaces that are needed for IR-level transformations.
> +class TargetTransformInfo : public ImmutablePass {
> +private:
> +  const ScalarTargetTransformInfo *STTI;
> +  const VectorTargetTransformInfo *VTTI;
> +public:
> +  /// Default ctor.
> +  ///
> +  /// @note This has to exist, because this is a pass, but it should never be
> +  /// used.
> +  TargetTransformInfo();
> +
> +  explicit TargetTransformInfo(const ScalarTargetTransformInfo* S,
> +                               const VectorTargetTransformInfo *V)
> +    : ImmutablePass(ID), STTI(S), VTTI(V) {
> +      initializeTargetTransformInfoPass(*PassRegistry::getPassRegistry());
> +    }
> +
> +  TargetTransformInfo(const TargetTransformInfo &T) :
> +    ImmutablePass(ID), STTI(T.STTI), VTTI(T.VTTI) { }
> +
> +  const ScalarTargetTransformInfo* getScalarTargetTransformInfo() {
> +    return STTI;
> +  }
> +  const VectorTargetTransformInfo* getVectorTargetTransformInfo() {
> +    return VTTI;
> +  }
> +
> +  /// Pass identification, replacement for typeid.
> +  static char ID;
> +};
> +
> +// ---------------------------------------------------------------------------//
> +//  The classes below are inherited and implemented by target-specific classes
> +//  in the codegen.
> +// ---------------------------------------------------------------------------//
> +
> +/// ScalarTargetTransformInfo - This interface is used by IR-level passes
> +/// that need target-dependent information for generic scalar transformations.
> +/// LSR, and LowerInvoke use this interface.
> +class ScalarTargetTransformInfo {
> +public:
> +  /// isLegalAddImmediate - Return true if the specified immediate is legal
> +  /// add immediate, that is the target has add instructions which can add
> +  /// a register with the immediate without having to materialize the
> +  /// immediate into a register.
> +  virtual bool isLegalAddImmediate(int64_t) const {
> +    return false;
> +  }
> +  /// isLegalICmpImmediate - Return true if the specified immediate is legal
> +  /// icmp immediate, that is the target has icmp instructions which can compare
> +  /// a register against the immediate without having to materialize the
> +  /// immediate into a register.
> +  virtual bool isLegalICmpImmediate(int64_t) const {
> +    return false;
> +  }
> +  /// isLegalAddressingMode - Return true if the addressing mode represented by
> +  /// AM is legal for this target, for a load/store of the specified type.
> +  /// The type may be VoidTy, in which case only return true if the addressing
> +  /// mode is legal for a load/store of any legal type.
> +  /// TODO: Handle pre/postinc as well.
> +  virtual bool isLegalAddressingMode(const AddrMode &AM, Type *Ty) const {
> +    return false;
> +  }
> +  /// isTruncateFree - Return true if it's free to truncate a value of
> +  /// type Ty1 to type Ty2. e.g. On x86 it's free to truncate a i32 value in
> +  /// register EAX to i16 by referencing its sub-register AX.
> +  virtual bool isTruncateFree(Type * /*Ty1*/, Type * /*Ty2*/) const {
> +    return false;
> +  }
> +  /// Is this type legal.
> +  virtual bool isTypeLegal(Type *Ty) const {
> +    return false;
> +  }
> +  /// getJumpBufAlignment - returns the target's jmp_buf alignment in bytes
> +  virtual unsigned getJumpBufAlignment() const {
> +    return 0;
> +  }
> +  /// getJumpBufSize - returns the target's jmp_buf size in bytes.
> +  virtual unsigned getJumpBufSize() const {
> +    return 0;
> +  }
> +};
> +
> +class VectorTargetTransformInfo {
> +  // TODO: define an interface for VectorTargetTransformInfo.
> +};
> +
> +} // End llvm namespace
> +
> +#endif
>
> Modified: llvm/trunk/include/llvm/Transforms/Scalar.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Transforms/Scalar.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/include/llvm/Transforms/Scalar.h (original)
> +++ llvm/trunk/include/llvm/Transforms/Scalar.h Wed Oct 10 17:04:55 2012
> @@ -119,7 +119,7 @@
>  // optional parameter used to consult the target machine whether certain
>  // transformations are profitable.
>  //
> -Pass *createLoopStrengthReducePass(const TargetLowering *TLI = 0);
> +Pass *createLoopStrengthReducePass();
>
>  Pass *createGlobalMergePass(const TargetLowering *TLI = 0);
>
> @@ -249,9 +249,8 @@
>  // purpose "my LLVM-to-LLVM pass doesn't support the invoke instruction yet"
>  // lowering pass.
>  //
> -FunctionPass *createLowerInvokePass(const TargetLowering *TLI = 0);
> -FunctionPass *createLowerInvokePass(const TargetLowering *TLI,
> -                                    bool useExpensiveEHSupport);
> +FunctionPass *createLowerInvokePass();
> +FunctionPass *createLowerInvokePass(bool useExpensiveEHSupport);
>  extern char &LowerInvokePassID;
>
>  //===----------------------------------------------------------------------===//
>
> Modified: llvm/trunk/lib/Analysis/ScalarEvolutionExpander.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/ScalarEvolutionExpander.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Analysis/ScalarEvolutionExpander.cpp (original)
> +++ llvm/trunk/lib/Analysis/ScalarEvolutionExpander.cpp Wed Oct 10 17:04:55 2012
> @@ -19,8 +19,8 @@
>  #include "llvm/LLVMContext.h"
>  #include "llvm/Support/Debug.h"
>  #include "llvm/DataLayout.h"
> -#include "llvm/Target/TargetLowering.h"
>  #include "llvm/ADT/STLExtras.h"
> +#include "llvm/TargetTransformInfo.h"
>
>  using namespace llvm;
>
> @@ -1599,15 +1599,15 @@
>  /// This does not depend on any SCEVExpander state but should be used in
>  /// the same context that SCEVExpander is used.
>  unsigned SCEVExpander::replaceCongruentIVs(Loop *L, const DominatorTree *DT,
> -                                           SmallVectorImpl<WeakVH> &DeadInsts,
> -                                           const TargetLowering *TLI) {
> +                                          SmallVectorImpl<WeakVH> &DeadInsts,
> +                                          const ScalarTargetTransformInfo *STTI) {
>    // Find integer phis in order of increasing width.
>    SmallVector<PHINode*, 8> Phis;
>    for (BasicBlock::iterator I = L->getHeader()->begin();
>         PHINode *Phi = dyn_cast<PHINode>(I); ++I) {
>      Phis.push_back(Phi);
>    }
> -  if (TLI)
> +  if (STTI)
>      std::sort(Phis.begin(), Phis.end(), width_descending);
>
>    unsigned NumElim = 0;
> @@ -1624,8 +1624,8 @@
>      PHINode *&OrigPhiRef = ExprToIVMap[SE.getSCEV(Phi)];
>      if (!OrigPhiRef) {
>        OrigPhiRef = Phi;
> -      if (Phi->getType()->isIntegerTy() && TLI
> -          && TLI->isTruncateFree(Phi->getType(), Phis.back()->getType())) {
> +      if (Phi->getType()->isIntegerTy() && STTI &&
> +          STTI->isTruncateFree(Phi->getType(), Phis.back()->getType())) {
>          // This phi can be freely truncated to the narrowest phi type. Map the
>          // truncated expression to it so it will be reused for narrow types.
>          const SCEV *TruncExpr =
>
> Modified: llvm/trunk/lib/CodeGen/Passes.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/Passes.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/Passes.cpp (original)
> +++ llvm/trunk/lib/CodeGen/Passes.cpp Wed Oct 10 17:04:55 2012
> @@ -359,7 +359,7 @@
>
>    // Run loop strength reduction before anything else.
>    if (getOptLevel() != CodeGenOpt::None && !DisableLSR) {
> -    addPass(createLoopStrengthReducePass(getTargetLowering()));
> +    addPass(createLoopStrengthReducePass());
>      if (PrintLSR)
>        addPass(createPrintFunctionPass("\n\n*** Code after LSR ***\n", &dbgs()));
>    }
> @@ -389,7 +389,7 @@
>      addPass(createDwarfEHPass(TM));
>      break;
>    case ExceptionHandling::None:
> -    addPass(createLowerInvokePass(TM->getTargetLowering()));
> +    addPass(createLowerInvokePass());
>
>      // The lower invoke pass may create unreachable code. Remove it.
>      addPass(createUnreachableBlockEliminationPass());
>
> Modified: llvm/trunk/lib/Target/ARM/ARMTargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMTargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/ARM/ARMTargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/ARM/ARMTargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -71,7 +71,8 @@
>      ELFWriterInfo(*this),
>      TLInfo(*this),
>      TSInfo(*this),
> -    FrameLowering(Subtarget) {
> +    FrameLowering(Subtarget),
> +    STTI(&TLInfo) {
>    if (!Subtarget.hasARMOps())
>      report_fatal_error("CPU: '" + Subtarget.getCPUString() + "' does not "
>                         "support ARM mode execution!");
> @@ -104,7 +105,8 @@
>      TSInfo(*this),
>      FrameLowering(Subtarget.hasThumb2()
>                ? new ARMFrameLowering(Subtarget)
> -              : (ARMFrameLowering*)new Thumb1FrameLowering(Subtarget)) {
> +              : (ARMFrameLowering*)new Thumb1FrameLowering(Subtarget)),
> +    STTI(&TLInfo){
>  }
>
>  namespace {
>
> Modified: llvm/trunk/lib/Target/ARM/ARMTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMTargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/ARM/ARMTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/ARM/ARMTargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -25,6 +25,7 @@
>  #include "Thumb1FrameLowering.h"
>  #include "Thumb2InstrInfo.h"
>  #include "llvm/Target/TargetMachine.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>  #include "llvm/DataLayout.h"
>  #include "llvm/MC/MCStreamer.h"
>  #include "llvm/ADT/OwningPtr.h"
> @@ -67,6 +68,8 @@
>    ARMTargetLowering   TLInfo;
>    ARMSelectionDAGInfo TSInfo;
>    ARMFrameLowering    FrameLowering;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>   public:
>    ARMTargetMachine(const Target &T, StringRef TT,
>                     StringRef CPU, StringRef FS,
> @@ -88,7 +91,12 @@
>    virtual const ARMFrameLowering *getFrameLowering() const {
>      return &FrameLowering;
>    }
> -
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>    virtual const ARMInstrInfo     *getInstrInfo() const { return &InstrInfo; }
>    virtual const DataLayout       *getDataLayout() const { return &DL; }
>    virtual const ARMELFWriterInfo *getELFWriterInfo() const {
> @@ -110,6 +118,8 @@
>    ARMSelectionDAGInfo TSInfo;
>    // Either Thumb1FrameLowering or ARMFrameLowering.
>    OwningPtr<ARMFrameLowering> FrameLowering;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>  public:
>    ThumbTargetMachine(const Target &T, StringRef TT,
>                       StringRef CPU, StringRef FS,
> @@ -138,6 +148,12 @@
>    virtual const ARMFrameLowering *getFrameLowering() const {
>      return FrameLowering.get();
>    }
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>    virtual const DataLayout       *getDataLayout() const { return &DL; }
>    virtual const ARMELFWriterInfo *getELFWriterInfo() const {
>      return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
>
> Modified: llvm/trunk/lib/Target/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CMakeLists.txt?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/CMakeLists.txt (original)
> +++ llvm/trunk/lib/Target/CMakeLists.txt Wed Oct 10 17:04:55 2012
> @@ -11,6 +11,7 @@
>    TargetMachineC.cpp
>    TargetRegisterInfo.cpp
>    TargetSubtargetInfo.cpp
> +  TargetTransformImpl.cpp
>    )
>
>  foreach(t ${LLVM_TARGETS_TO_BUILD})
>
> Modified: llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -43,7 +43,8 @@
>      FrameLowering(Subtarget),
>      TLInfo(*this),
>      TSInfo(*this),
> -    InstrItins(Subtarget.getInstrItineraryData()) {
> +    InstrItins(Subtarget.getInstrItineraryData()),
> +    STTI(&TLInfo){
>  }
>
>  //===----------------------------------------------------------------------===//
>
> Modified: llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/CellSPU/SPUTargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -20,6 +20,7 @@
>  #include "SPUSelectionDAGInfo.h"
>  #include "SPUFrameLowering.h"
>  #include "llvm/Target/TargetMachine.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>  #include "llvm/DataLayout.h"
>
>  namespace llvm {
> @@ -34,6 +35,8 @@
>    SPUTargetLowering   TLInfo;
>    SPUSelectionDAGInfo TSInfo;
>    InstrItineraryData  InstrItins;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>  public:
>    SPUTargetMachine(const Target &T, StringRef TT,
>                     StringRef CPU, StringRef FS, const TargetOptions &Options,
> @@ -77,6 +80,12 @@
>    virtual const InstrItineraryData *getInstrItineraryData() const {
>      return &InstrItins;
>    }
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>
>    // Pass Pipeline Configuration
>    virtual TargetPassConfig *createPassConfig(PassManagerBase &PM);
>
> Modified: llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -74,7 +74,8 @@
>      Subtarget(TT, CPU, FS), InstrInfo(Subtarget), TLInfo(*this),
>      TSInfo(*this),
>      FrameLowering(Subtarget),
> -    InstrItins(&Subtarget.getInstrItineraryData()) {
> +    InstrItins(&Subtarget.getInstrItineraryData()),
> +    STTI(&TLInfo) {
>    setMCUseCFI(false);
>  }
>
> @@ -87,7 +88,7 @@
>    PM.add(createDeadCodeEliminationPass());
>    PM.add(createConstantPropagationPass());
>    PM.add(createLoopUnrollPass());
> -  PM.add(createLoopStrengthReducePass(getTargetLowering()));
> +  PM.add(createLoopStrengthReducePass());
>    return true;
>  }
>
>
> Modified: llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/Hexagon/HexagonTargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -21,6 +21,7 @@
>  #include "HexagonFrameLowering.h"
>  #include "llvm/Target/TargetMachine.h"
>  #include "llvm/DataLayout.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>
>  namespace llvm {
>
> @@ -34,6 +35,8 @@
>    HexagonSelectionDAGInfo TSInfo;
>    HexagonFrameLowering FrameLowering;
>    const InstrItineraryData* InstrItins;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>
>  public:
>    HexagonTargetMachine(const Target &T, StringRef TT,StringRef CPU,
> @@ -68,6 +71,14 @@
>      return &TSInfo;
>    }
>
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
> +
>    virtual const DataLayout       *getDataLayout() const { return &DL; }
>    static unsigned getModuleMatchQuality(const Module &M);
>
>
> Modified: llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -42,7 +42,7 @@
>      InstrInfo(*this),
>      FrameLowering(Subtarget),
>      TLInfo(*this), TSInfo(*this), ELFWriterInfo(*this),
> -    InstrItins(Subtarget.getInstrItineraryData()) {
> +    InstrItins(Subtarget.getInstrItineraryData()), STTI(&TLInfo) {
>  }
>
>  namespace {
>
> Modified: llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/MBlaze/MBlazeTargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -25,6 +25,7 @@
>  #include "llvm/Target/TargetMachine.h"
>  #include "llvm/DataLayout.h"
>  #include "llvm/Target/TargetFrameLowering.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>
>  namespace llvm {
>    class formatted_raw_ostream;
> @@ -39,6 +40,8 @@
>      MBlazeIntrinsicInfo    IntrinsicInfo;
>      MBlazeELFWriterInfo    ELFWriterInfo;
>      InstrItineraryData     InstrItins;
> +    ScalarTargetTransformImpl STTI;
> +    VectorTargetTransformImpl VTTI;
>
>    public:
>      MBlazeTargetMachine(const Target &T, StringRef TT,
> @@ -77,6 +80,10 @@
>      virtual const MBlazeELFWriterInfo *getELFWriterInfo() const {
>        return &ELFWriterInfo;
>      }
> +    virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const
> +    { return &STTI; }
> +    virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const
> +    { return &VTTI; }
>
>      // Pass Pipeline Configuration
>      virtual TargetPassConfig *createPassConfig(PassManagerBase &PM);
>
> Modified: llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -36,7 +36,7 @@
>      // FIXME: Check DataLayout string.
>      DL("e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"),
>      InstrInfo(*this), TLInfo(*this), TSInfo(*this),
> -    FrameLowering(Subtarget) { }
> +    FrameLowering(Subtarget), STTI(&TLInfo) { }
>
>  namespace {
>  /// MSP430 Code Generator Pass Configuration Options.
>
> Modified: llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.h (original)
> +++ llvm/trunk/lib/Target/MSP430/MSP430TargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -24,6 +24,7 @@
>  #include "llvm/DataLayout.h"
>  #include "llvm/Target/TargetFrameLowering.h"
>  #include "llvm/Target/TargetMachine.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>
>  namespace llvm {
>
> @@ -36,6 +37,8 @@
>    MSP430TargetLowering   TLInfo;
>    MSP430SelectionDAGInfo TSInfo;
>    MSP430FrameLowering    FrameLowering;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>
>  public:
>    MSP430TargetMachine(const Target &T, StringRef TT,
> @@ -61,7 +64,12 @@
>    virtual const MSP430SelectionDAGInfo* getSelectionDAGInfo() const {
>      return &TSInfo;
>    }
> -
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>    virtual TargetPassConfig *createPassConfig(PassManagerBase &PM);
>  }; // MSP430TargetMachine.
>
>
> Modified: llvm/trunk/lib/Target/Mips/MipsTargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsTargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/Mips/MipsTargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/Mips/MipsTargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -53,7 +53,7 @@
>      InstrInfo(MipsInstrInfo::create(*this)),
>      FrameLowering(MipsFrameLowering::create(*this, Subtarget)),
>      TLInfo(*this), TSInfo(*this), JITInfo(),
> -    ELFWriterInfo(false, isLittle) {
> +    ELFWriterInfo(false, isLittle), STTI(&TLInfo) {
>  }
>
>  void MipsebTargetMachine::anchor() { }
>
> Modified: llvm/trunk/lib/Target/Mips/MipsTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsTargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/Mips/MipsTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/Mips/MipsTargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -24,6 +24,7 @@
>  #include "llvm/Target/TargetMachine.h"
>  #include "llvm/DataLayout.h"
>  #include "llvm/Target/TargetFrameLowering.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>
>  namespace llvm {
>  class formatted_raw_ostream;
> @@ -38,6 +39,8 @@
>    MipsSelectionDAGInfo TSInfo;
>    MipsJITInfo JITInfo;
>    MipsELFWriterInfo   ELFWriterInfo;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;

This member was unused, causing a -Wunused-member-variable warning.
I've removed it to cleanup the build in r165669.

- David

>
>  public:
>    MipsTargetMachine(const Target &T, StringRef TT,
>
> Modified: llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -72,7 +72,8 @@
>  : LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
>    Subtarget(TT, CPU, FS, is64bit),
>    DL(Subtarget.getDataLayout()),
> -  InstrInfo(*this), TLInfo(*this), TSInfo(*this), FrameLowering(*this,is64bit)
> +  InstrInfo(*this), TLInfo(*this), TSInfo(*this), FrameLowering(*this,is64bit),
> +  STTI(&TLInfo)
>  /*FrameInfo(TargetFrameInfo::StackGrowsUp, 8, 0)*/ {
>  }
>
>
> Modified: llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/NVPTX/NVPTXTargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -25,6 +25,7 @@
>  #include "llvm/Target/TargetFrameLowering.h"
>  #include "llvm/Target/TargetMachine.h"
>  #include "llvm/Target/TargetSelectionDAGInfo.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>
>  namespace llvm {
>
> @@ -44,6 +45,9 @@
>    // Hold Strings that can be free'd all together with NVPTXTargetMachine
>    ManagedStringPool     ManagedStrPool;
>
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
> +
>    //bool addCommonCodeGenPasses(PassManagerBase &, CodeGenOpt::Level,
>    //                            bool DisableVerify, MCContext *&OutCtx);
>
> @@ -72,6 +76,12 @@
>    virtual const TargetSelectionDAGInfo *getSelectionDAGInfo() const {
>      return &TSInfo;
>    }
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>
>    //virtual bool addInstSelector(PassManagerBase &PM,
>    //                             CodeGenOpt::Level OptLevel);
>
> Modified: llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -43,7 +43,8 @@
>      DL(Subtarget.getDataLayoutString()), InstrInfo(*this),
>      FrameLowering(Subtarget), JITInfo(*this, is64Bit),
>      TLInfo(*this), TSInfo(*this),
> -    InstrItins(Subtarget.getInstrItineraryData()) {
> +    InstrItins(Subtarget.getInstrItineraryData()),
> +    STTI(&TLInfo){
>
>    // The binutils for the BG/P are too old for CFI.
>    if (Subtarget.isBGP())
>
> Modified: llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/PowerPC/PPCTargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -21,6 +21,7 @@
>  #include "PPCISelLowering.h"
>  #include "PPCSelectionDAGInfo.h"
>  #include "llvm/Target/TargetMachine.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>  #include "llvm/DataLayout.h"
>
>  namespace llvm {
> @@ -36,6 +37,8 @@
>    PPCTargetLowering   TLInfo;
>    PPCSelectionDAGInfo TSInfo;
>    InstrItineraryData  InstrItins;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>
>  public:
>    PPCTargetMachine(const Target &T, StringRef TT,
> @@ -63,6 +66,12 @@
>    virtual const InstrItineraryData *getInstrItineraryData() const {
>      return &InstrItins;
>    }
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>
>    // Pass Pipeline Configuration
>    virtual TargetPassConfig *createPassConfig(PassManagerBase &PM);
>
> Modified: llvm/trunk/lib/Target/Sparc/SparcTargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Sparc/SparcTargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/Sparc/SparcTargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/Sparc/SparcTargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -36,7 +36,7 @@
>      DL(Subtarget.getDataLayout()),
>      InstrInfo(Subtarget),
>      TLInfo(*this), TSInfo(*this),
> -    FrameLowering(Subtarget) {
> +    FrameLowering(Subtarget),STTI(&TLInfo) {
>  }
>
>  namespace {
>
> Modified: llvm/trunk/lib/Target/Sparc/SparcTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Sparc/SparcTargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/Sparc/SparcTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/Sparc/SparcTargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -22,6 +22,7 @@
>  #include "llvm/Target/TargetMachine.h"
>  #include "llvm/DataLayout.h"
>  #include "llvm/Target/TargetFrameLowering.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>
>  namespace llvm {
>
> @@ -32,6 +33,8 @@
>    SparcTargetLowering TLInfo;
>    SparcSelectionDAGInfo TSInfo;
>    SparcFrameLowering FrameLowering;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>  public:
>    SparcTargetMachine(const Target &T, StringRef TT,
>                       StringRef CPU, StringRef FS, const TargetOptions &Options,
> @@ -52,6 +55,12 @@
>    virtual const SparcSelectionDAGInfo* getSelectionDAGInfo() const {
>      return &TSInfo;
>    }
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>    virtual const DataLayout       *getDataLayout() const { return &DL; }
>
>    // Pass Pipeline Configuration
>
> Modified: llvm/trunk/lib/Target/Target.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Target.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/Target.cpp (original)
> +++ llvm/trunk/lib/Target/Target.cpp Wed Oct 10 17:04:55 2012
> @@ -26,6 +26,7 @@
>  void llvm::initializeTarget(PassRegistry &Registry) {
>    initializeDataLayoutPass(Registry);
>    initializeTargetLibraryInfoPass(Registry);
> +  initializeTargetTransformInfoPass(Registry);
>  }
>
>  void LLVMInitializeTarget(LLVMPassRegistryRef R) {
>
> Added: llvm/trunk/lib/Target/TargetTransformImpl.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/TargetTransformImpl.cpp?rev=165665&view=auto
> ==============================================================================
> --- llvm/trunk/lib/Target/TargetTransformImpl.cpp (added)
> +++ llvm/trunk/lib/Target/TargetTransformImpl.cpp Wed Oct 10 17:04:55 2012
> @@ -0,0 +1,43 @@
> +// llvm/Target/TargetTransformImpl.cpp - Target Loop Trans Info ---*- C++ -*-=//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#include "llvm/Target/TargetTransformImpl.h"
> +#include "llvm/Target/TargetLowering.h"
> +
> +using namespace llvm;
> +
> +bool ScalarTargetTransformImpl::isLegalAddImmediate(int64_t imm) const {
> +  return TLI->isLegalAddImmediate(imm);
> +}
> +
> +bool ScalarTargetTransformImpl::isLegalICmpImmediate(int64_t imm) const {
> +  return TLI->isLegalICmpImmediate(imm);
> +}
> +
> +bool ScalarTargetTransformImpl::isLegalAddressingMode(const AddrMode &AM,
> +                                                    Type *Ty) const {
> +  return TLI->isLegalAddressingMode(AM, Ty);
> +}
> +
> +bool ScalarTargetTransformImpl::isTruncateFree(Type *Ty1, Type *Ty2) const {
> +  return TLI->isTruncateFree(Ty1, Ty2);
> +}
> +
> +bool ScalarTargetTransformImpl::isTypeLegal(Type *Ty) const {
> +  EVT T = TLI->getValueType(Ty);
> +  return TLI->isTypeLegal(T);
> +}
> +
> +unsigned ScalarTargetTransformImpl::getJumpBufAlignment() const {
> +  return TLI->getJumpBufAlignment();
> +}
> +
> +unsigned ScalarTargetTransformImpl::getJumpBufSize() const {
> +  return TLI->getJumpBufSize();
> +}
>
> Modified: llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86TargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/X86/X86TargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/X86/X86TargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -48,7 +48,8 @@
>      InstrInfo(*this),
>      TSInfo(*this),
>      TLInfo(*this),
> -    JITInfo(*this) {
> +    JITInfo(*this),
> +    STTI(&TLInfo) {
>  }
>
>  void X86_64TargetMachine::anchor() { }
> @@ -64,7 +65,8 @@
>      InstrInfo(*this),
>      TSInfo(*this),
>      TLInfo(*this),
> -    JITInfo(*this) {
> +    JITInfo(*this),
> +    STTI(&TLInfo) {
>  }
>
>  /// X86TargetMachine ctor - Create an X86 target.
>
> Modified: llvm/trunk/lib/Target/X86/X86TargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86TargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/X86/X86TargetMachine.h (original)
> +++ llvm/trunk/lib/Target/X86/X86TargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -25,6 +25,7 @@
>  #include "llvm/Target/TargetMachine.h"
>  #include "llvm/DataLayout.h"
>  #include "llvm/Target/TargetFrameLowering.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>
>  namespace llvm {
>
> @@ -85,6 +86,8 @@
>    X86SelectionDAGInfo TSInfo;
>    X86TargetLowering TLInfo;
>    X86JITInfo        JITInfo;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>  public:
>    X86_32TargetMachine(const Target &T, StringRef TT,
>                        StringRef CPU, StringRef FS, const TargetOptions &Options,
> @@ -103,6 +106,12 @@
>    virtual       X86JITInfo       *getJITInfo()         {
>      return &JITInfo;
>    }
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>  };
>
>  /// X86_64TargetMachine - X86 64-bit target machine.
> @@ -114,6 +123,8 @@
>    X86SelectionDAGInfo TSInfo;
>    X86TargetLowering TLInfo;
>    X86JITInfo        JITInfo;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>  public:
>    X86_64TargetMachine(const Target &T, StringRef TT,
>                        StringRef CPU, StringRef FS, const TargetOptions &Options,
> @@ -132,6 +143,12 @@
>    virtual       X86JITInfo       *getJITInfo()         {
>      return &JITInfo;
>    }
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>  };
>
>  } // End llvm namespace
>
> Modified: llvm/trunk/lib/Target/XCore/XCoreTargetMachine.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/XCore/XCoreTargetMachine.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/XCore/XCoreTargetMachine.cpp (original)
> +++ llvm/trunk/lib/Target/XCore/XCoreTargetMachine.cpp Wed Oct 10 17:04:55 2012
> @@ -32,7 +32,7 @@
>      InstrInfo(),
>      FrameLowering(Subtarget),
>      TLInfo(*this),
> -    TSInfo(*this) {
> +    TSInfo(*this), STTI(&TLInfo) {
>  }
>
>  namespace {
>
> Modified: llvm/trunk/lib/Target/XCore/XCoreTargetMachine.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/XCore/XCoreTargetMachine.h?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/XCore/XCoreTargetMachine.h (original)
> +++ llvm/trunk/lib/Target/XCore/XCoreTargetMachine.h Wed Oct 10 17:04:55 2012
> @@ -20,6 +20,7 @@
>  #include "XCoreISelLowering.h"
>  #include "XCoreSelectionDAGInfo.h"
>  #include "llvm/Target/TargetMachine.h"
> +#include "llvm/Target/TargetTransformImpl.h"
>  #include "llvm/DataLayout.h"
>
>  namespace llvm {
> @@ -31,6 +32,8 @@
>    XCoreFrameLowering FrameLowering;
>    XCoreTargetLowering TLInfo;
>    XCoreSelectionDAGInfo TSInfo;
> +  ScalarTargetTransformImpl STTI;
> +  VectorTargetTransformImpl VTTI;
>  public:
>    XCoreTargetMachine(const Target &T, StringRef TT,
>                       StringRef CPU, StringRef FS, const TargetOptions &Options,
> @@ -53,6 +56,12 @@
>    virtual const TargetRegisterInfo *getRegisterInfo() const {
>      return &InstrInfo.getRegisterInfo();
>    }
> +  virtual const ScalarTargetTransformInfo *getScalarTargetTransformInfo()const {
> +    return &STTI;
> +  }
> +  virtual const VectorTargetTransformInfo *getVectorTargetTransformInfo()const {
> +    return &VTTI;
> +  }
>    virtual const DataLayout       *getDataLayout() const { return &DL; }
>
>    // Pass Pipeline Configuration
>
> Modified: llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp (original)
> +++ llvm/trunk/lib/Transforms/Scalar/LoopStrengthReduce.cpp Wed Oct 10 17:04:55 2012
> @@ -37,7 +37,7 @@
>  //
>  // TODO: Handle multiple loops at a time.
>  //
> -// TODO: Should TargetLowering::AddrMode::BaseGV be changed to a ConstantExpr
> +// TODO: Should AddrMode::BaseGV be changed to a ConstantExpr
>  //       instead of a GlobalValue?
>  //
>  // TODO: When truncation is free, truncate ICmp users' operands to make it a
> @@ -67,6 +67,7 @@
>  #include "llvm/Transforms/Scalar.h"
>  #include "llvm/Transforms/Utils/BasicBlockUtils.h"
>  #include "llvm/Transforms/Utils/Local.h"
> +#include "llvm/TargetTransformInfo.h"
>  #include "llvm/ADT/SmallBitVector.h"
>  #include "llvm/ADT/SetVector.h"
>  #include "llvm/ADT/DenseSet.h"
> @@ -74,7 +75,6 @@
>  #include "llvm/Support/CommandLine.h"
>  #include "llvm/Support/ValueHandle.h"
>  #include "llvm/Support/raw_ostream.h"
> -#include "llvm/Target/TargetLowering.h"
>  #include <algorithm>
>  using namespace llvm;
>
> @@ -1118,7 +1118,7 @@
>    enum KindType {
>      Basic,   ///< A normal use, with no folding.
>      Special, ///< A special case of basic, allowing -1 scales.
> -    Address, ///< An address use; folding according to TargetLowering
> +    Address, ///< An address use; folding according to ScalarTargetTransformInfo.
>      ICmpZero ///< An equality icmp with both operands folded into one.
>      // TODO: Add a generic icmp too?
>    };
> @@ -1272,12 +1272,12 @@
>  /// address-mode folding and special icmp tricks.
>  static bool isLegalUse(const AddrMode &AM,
>                         LSRUse::KindType Kind, Type *AccessTy,
> -                       const TargetLowering *TLI) {
> +                       const ScalarTargetTransformInfo *STTI) {
>    switch (Kind) {
>    case LSRUse::Address:
>      // If we have low-level target information, ask the target if it can
>      // completely fold this address.
> -    if (TLI) return TLI->isLegalAddressingMode(AM, AccessTy);
> +    if (STTI) return STTI->isLegalAddressingMode(AM, AccessTy);
>
>      // Otherwise, just guess that reg+reg addressing is legal.
>      return !AM.BaseGV && AM.BaseOffs == 0 && AM.Scale <= 1;
> @@ -1300,7 +1300,7 @@
>      // If we have low-level target information, ask the target if it can fold an
>      // integer immediate on an icmp.
>      if (AM.BaseOffs != 0) {
> -      if (!TLI)
> +      if (!STTI)
>          return false;
>        // We have one of:
>        // ICmpZero     BaseReg + Offset => ICmp BaseReg, -Offset
> @@ -1309,7 +1309,7 @@
>        int64_t Offs = AM.BaseOffs;
>        if (AM.Scale == 0)
>          Offs = -(uint64_t)Offs; // The cast does the right thing with INT64_MIN.
> -      return TLI->isLegalICmpImmediate(Offs);
> +      return STTI->isLegalICmpImmediate(Offs);
>      }
>
>      // ICmpZero BaseReg + -1*ScaleReg => ICmp BaseReg, ScaleReg
> @@ -1330,20 +1330,20 @@
>  static bool isLegalUse(AddrMode AM,
>                         int64_t MinOffset, int64_t MaxOffset,
>                         LSRUse::KindType Kind, Type *AccessTy,
> -                       const TargetLowering *TLI) {
> +                       const ScalarTargetTransformInfo *LTTI) {
>    // Check for overflow.
>    if (((int64_t)((uint64_t)AM.BaseOffs + MinOffset) > AM.BaseOffs) !=
>        (MinOffset > 0))
>      return false;
>    AM.BaseOffs = (uint64_t)AM.BaseOffs + MinOffset;
> -  if (isLegalUse(AM, Kind, AccessTy, TLI)) {
> +  if (isLegalUse(AM, Kind, AccessTy, LTTI)) {
>      AM.BaseOffs = (uint64_t)AM.BaseOffs - MinOffset;
>      // Check for overflow.
>      if (((int64_t)((uint64_t)AM.BaseOffs + MaxOffset) > AM.BaseOffs) !=
>          (MaxOffset > 0))
>        return false;
>      AM.BaseOffs = (uint64_t)AM.BaseOffs + MaxOffset;
> -    return isLegalUse(AM, Kind, AccessTy, TLI);
> +    return isLegalUse(AM, Kind, AccessTy, LTTI);
>    }
>    return false;
>  }
> @@ -1352,7 +1352,7 @@
>                               GlobalValue *BaseGV,
>                               bool HasBaseReg,
>                               LSRUse::KindType Kind, Type *AccessTy,
> -                             const TargetLowering *TLI) {
> +                             const ScalarTargetTransformInfo *LTTI) {
>    // Fast-path: zero is always foldable.
>    if (BaseOffs == 0 && !BaseGV) return true;
>
> @@ -1371,14 +1371,14 @@
>      AM.HasBaseReg = true;
>    }
>
> -  return isLegalUse(AM, Kind, AccessTy, TLI);
> +  return isLegalUse(AM, Kind, AccessTy, LTTI);
>  }
>
>  static bool isAlwaysFoldable(const SCEV *S,
>                               int64_t MinOffset, int64_t MaxOffset,
>                               bool HasBaseReg,
>                               LSRUse::KindType Kind, Type *AccessTy,
> -                             const TargetLowering *TLI,
> +                             const ScalarTargetTransformInfo *LTTI,
>                               ScalarEvolution &SE) {
>    // Fast-path: zero is always foldable.
>    if (S->isZero()) return true;
> @@ -1402,7 +1402,7 @@
>    AM.HasBaseReg = HasBaseReg;
>    AM.Scale = Kind == LSRUse::ICmpZero ? -1 : 1;
>
> -  return isLegalUse(AM, MinOffset, MaxOffset, Kind, AccessTy, TLI);
> +  return isLegalUse(AM, MinOffset, MaxOffset, Kind, AccessTy, LTTI);
>  }
>
>  namespace {
> @@ -1502,7 +1502,7 @@
>    ScalarEvolution &SE;
>    DominatorTree &DT;
>    LoopInfo &LI;
> -  const TargetLowering *const TLI;
> +  const ScalarTargetTransformInfo *const STTI;
>    Loop *const L;
>    bool Changed;
>
> @@ -1638,7 +1638,7 @@
>                           Pass *P);
>
>  public:
> -  LSRInstance(const TargetLowering *tli, Loop *l, Pass *P);
> +  LSRInstance(const ScalarTargetTransformInfo *ltti, Loop *l, Pass *P);
>
>    bool getChanged() const { return Changed; }
>
> @@ -1688,11 +1688,10 @@
>      }
>      if (!DestTy) continue;
>
> -    if (TLI) {
> +    if (STTI) {
>        // If target does not support DestTy natively then do not apply
>        // this transformation.
> -      EVT DVT = TLI->getValueType(DestTy);
> -      if (!TLI->isTypeLegal(DVT)) continue;
> +      if (!STTI->isTypeLegal(DestTy)) continue;
>      }
>
>      PHINode *PH = dyn_cast<PHINode>(ShadowUse->getOperand(0));
> @@ -2015,18 +2014,18 @@
>              if (C->getValue().getMinSignedBits() >= 64 ||
>                  C->getValue().isMinSignedValue())
>                goto decline_post_inc;
> -            // Without TLI, assume that any stride might be valid, and so any
> +            // Without STTI, assume that any stride might be valid, and so any
>              // use might be shared.
> -            if (!TLI)
> +            if (!STTI)
>                goto decline_post_inc;
>              // Check for possible scaled-address reuse.
>              Type *AccessTy = getAccessType(UI->getUser());
>              AddrMode AM;
>              AM.Scale = C->getSExtValue();
> -            if (TLI->isLegalAddressingMode(AM, AccessTy))
> +            if (STTI->isLegalAddressingMode(AM, AccessTy))
>                goto decline_post_inc;
>              AM.Scale = -AM.Scale;
> -            if (TLI->isLegalAddressingMode(AM, AccessTy))
> +            if (STTI->isLegalAddressingMode(AM, AccessTy))
>                goto decline_post_inc;
>            }
>          }
> @@ -2097,12 +2096,12 @@
>    // Conservatively assume HasBaseReg is true for now.
>    if (NewOffset < LU.MinOffset) {
>      if (!isAlwaysFoldable(LU.MaxOffset - NewOffset, 0, HasBaseReg,
> -                          Kind, AccessTy, TLI))
> +                          Kind, AccessTy, STTI))
>        return false;
>      NewMinOffset = NewOffset;
>    } else if (NewOffset > LU.MaxOffset) {
>      if (!isAlwaysFoldable(NewOffset - LU.MinOffset, 0, HasBaseReg,
> -                          Kind, AccessTy, TLI))
> +                          Kind, AccessTy, STTI))
>        return false;
>      NewMaxOffset = NewOffset;
>    }
> @@ -2131,7 +2130,7 @@
>    int64_t Offset = ExtractImmediate(Expr, SE);
>
>    // Basic uses can't accept any offset, for example.
> -  if (!isAlwaysFoldable(Offset, 0, /*HasBaseReg=*/true, Kind, AccessTy, TLI)) {
> +  if (!isAlwaysFoldable(Offset, 0, /*HasBaseReg=*/true, Kind, AccessTy, STTI)) {
>      Expr = Copy;
>      Offset = 0;
>    }
> @@ -2396,7 +2395,7 @@
>  /// TODO: Consider IVInc free if it's already used in another chains.
>  static bool
>  isProfitableChain(IVChain &Chain, SmallPtrSet<Instruction*, 4> &Users,
> -                  ScalarEvolution &SE, const TargetLowering *TLI) {
> +                  ScalarEvolution &SE, const ScalarTargetTransformInfo *STTI) {
>    if (StressIVChain)
>      return true;
>
> @@ -2654,7 +2653,7 @@
>    for (unsigned UsersIdx = 0, NChains = IVChainVec.size();
>         UsersIdx < NChains; ++UsersIdx) {
>      if (!isProfitableChain(IVChainVec[UsersIdx],
> -                           ChainUsersVec[UsersIdx].FarUsers, SE, TLI))
> +                           ChainUsersVec[UsersIdx].FarUsers, SE, STTI))
>        continue;
>      // Preserve the chain at UsesIdx.
>      if (ChainIdx != UsersIdx)
> @@ -2681,7 +2680,8 @@
>
>  /// Return true if the IVInc can be folded into an addressing mode.
>  static bool canFoldIVIncExpr(const SCEV *IncExpr, Instruction *UserInst,
> -                             Value *Operand, const TargetLowering *TLI) {
> +                             Value *Operand,
> +                             const ScalarTargetTransformInfo *STTI) {
>    const SCEVConstant *IncConst = dyn_cast<SCEVConstant>(IncExpr);
>    if (!IncConst || !isAddressUse(UserInst, Operand))
>      return false;
> @@ -2691,7 +2691,7 @@
>
>    int64_t IncOffset = IncConst->getValue()->getSExtValue();
>    if (!isAlwaysFoldable(IncOffset, /*BaseGV=*/0, /*HaseBaseReg=*/false,
> -                       LSRUse::Address, getAccessType(UserInst), TLI))
> +                       LSRUse::Address, getAccessType(UserInst), STTI))
>      return false;
>
>    return true;
> @@ -2762,7 +2762,7 @@
>
>        // If an IV increment can't be folded, use it as the next IV value.
>        if (!canFoldIVIncExpr(LeftOverExpr, IncI->UserInst, IncI->IVOperand,
> -                            TLI)) {
> +                            STTI)) {
>          assert(IVTy == IVOper->getType() && "inconsistent IV increment type");
>          IVSrc = IVOper;
>          LeftOverExpr = 0;
> @@ -3108,7 +3108,7 @@
>        // into an immediate field.
>        if (isAlwaysFoldable(*J, LU.MinOffset, LU.MaxOffset,
>                             Base.getNumRegs() > 1,
> -                           LU.Kind, LU.AccessTy, TLI, SE))
> +                           LU.Kind, LU.AccessTy, STTI, SE))
>          continue;
>
>        // Collect all operands except *J.
> @@ -3122,7 +3122,7 @@
>        if (InnerAddOps.size() == 1 &&
>            isAlwaysFoldable(InnerAddOps[0], LU.MinOffset, LU.MaxOffset,
>                             Base.getNumRegs() > 1,
> -                           LU.Kind, LU.AccessTy, TLI, SE))
> +                           LU.Kind, LU.AccessTy, STTI, SE))
>          continue;
>
>        const SCEV *InnerSum = SE.getAddExpr(InnerAddOps);
> @@ -3132,9 +3132,9 @@
>
>        // Add the remaining pieces of the add back into the new formula.
>        const SCEVConstant *InnerSumSC = dyn_cast<SCEVConstant>(InnerSum);
> -      if (TLI && InnerSumSC &&
> +      if (STTI && InnerSumSC &&
>            SE.getTypeSizeInBits(InnerSumSC->getType()) <= 64 &&
> -          TLI->isLegalAddImmediate((uint64_t)F.UnfoldedOffset +
> +          STTI->isLegalAddImmediate((uint64_t)F.UnfoldedOffset +
>                                     InnerSumSC->getValue()->getZExtValue())) {
>          F.UnfoldedOffset = (uint64_t)F.UnfoldedOffset +
>                             InnerSumSC->getValue()->getZExtValue();
> @@ -3144,8 +3144,8 @@
>
>        // Add J as its own register, or an unfolded immediate.
>        const SCEVConstant *SC = dyn_cast<SCEVConstant>(*J);
> -      if (TLI && SC && SE.getTypeSizeInBits(SC->getType()) <= 64 &&
> -          TLI->isLegalAddImmediate((uint64_t)F.UnfoldedOffset +
> +      if (STTI && SC && SE.getTypeSizeInBits(SC->getType()) <= 64 &&
> +          STTI->isLegalAddImmediate((uint64_t)F.UnfoldedOffset +
>                                     SC->getValue()->getZExtValue()))
>          F.UnfoldedOffset = (uint64_t)F.UnfoldedOffset +
>                             SC->getValue()->getZExtValue();
> @@ -3205,7 +3205,7 @@
>      Formula F = Base;
>      F.AM.BaseGV = GV;
>      if (!isLegalUse(F.AM, LU.MinOffset, LU.MaxOffset,
> -                    LU.Kind, LU.AccessTy, TLI))
> +                    LU.Kind, LU.AccessTy, STTI))
>        continue;
>      F.BaseRegs[i] = G;
>      (void)InsertFormula(LU, LUIdx, F);
> @@ -3230,7 +3230,7 @@
>        Formula F = Base;
>        F.AM.BaseOffs = (uint64_t)Base.AM.BaseOffs - *I;
>        if (isLegalUse(F.AM, LU.MinOffset - *I, LU.MaxOffset - *I,
> -                     LU.Kind, LU.AccessTy, TLI)) {
> +                     LU.Kind, LU.AccessTy, STTI)) {
>          // Add the offset to the base register.
>          const SCEV *NewG = SE.getAddExpr(SE.getConstant(G->getType(), *I), G);
>          // If it cancelled out, drop the base register, otherwise update it.
> @@ -3250,7 +3250,7 @@
>      Formula F = Base;
>      F.AM.BaseOffs = (uint64_t)F.AM.BaseOffs + Imm;
>      if (!isLegalUse(F.AM, LU.MinOffset, LU.MaxOffset,
> -                    LU.Kind, LU.AccessTy, TLI))
> +                    LU.Kind, LU.AccessTy, STTI))
>        continue;
>      F.BaseRegs[i] = G;
>      (void)InsertFormula(LU, LUIdx, F);
> @@ -3297,7 +3297,7 @@
>      F.AM.BaseOffs = NewBaseOffs;
>
>      // Check that this scale is legal.
> -    if (!isLegalUse(F.AM, Offset, Offset, LU.Kind, LU.AccessTy, TLI))
> +    if (!isLegalUse(F.AM, Offset, Offset, LU.Kind, LU.AccessTy, STTI))
>        continue;
>
>      // Compensate for the use having MinOffset built into it.
> @@ -3353,12 +3353,12 @@
>      Base.AM.HasBaseReg = Base.BaseRegs.size() > 1;
>      // Check whether this scale is going to be legal.
>      if (!isLegalUse(Base.AM, LU.MinOffset, LU.MaxOffset,
> -                    LU.Kind, LU.AccessTy, TLI)) {
> +                    LU.Kind, LU.AccessTy, STTI)) {
>        // As a special-case, handle special out-of-loop Basic users specially.
>        // TODO: Reconsider this special case.
>        if (LU.Kind == LSRUse::Basic &&
>            isLegalUse(Base.AM, LU.MinOffset, LU.MaxOffset,
> -                     LSRUse::Special, LU.AccessTy, TLI) &&
> +                     LSRUse::Special, LU.AccessTy, STTI) &&
>            LU.AllFixupsOutsideLoop)
>          LU.Kind = LSRUse::Special;
>        else
> @@ -3391,8 +3391,8 @@
>
>  /// GenerateTruncates - Generate reuse formulae from different IV types.
>  void LSRInstance::GenerateTruncates(LSRUse &LU, unsigned LUIdx, Formula Base) {
> -  // This requires TargetLowering to tell us which truncates are free.
> -  if (!TLI) return;
> +  // This requires ScalarTargetTransformInfo to tell us which truncates are free.
> +  if (!STTI) return;
>
>    // Don't bother truncating symbolic values.
>    if (Base.AM.BaseGV) return;
> @@ -3405,7 +3405,7 @@
>    for (SmallSetVector<Type *, 4>::const_iterator
>         I = Types.begin(), E = Types.end(); I != E; ++I) {
>      Type *SrcTy = *I;
> -    if (SrcTy != DstTy && TLI->isTruncateFree(SrcTy, DstTy)) {
> +    if (SrcTy != DstTy && STTI->isTruncateFree(SrcTy, DstTy)) {
>        Formula F = Base;
>
>        if (F.ScaledReg) F.ScaledReg = SE.getAnyExtendExpr(F.ScaledReg, *I);
> @@ -3561,7 +3561,7 @@
>          Formula NewF = F;
>          NewF.AM.BaseOffs = Offs;
>          if (!isLegalUse(NewF.AM, LU.MinOffset, LU.MaxOffset,
> -                        LU.Kind, LU.AccessTy, TLI))
> +                        LU.Kind, LU.AccessTy, STTI))
>            continue;
>          NewF.ScaledReg = SE.getAddExpr(NegImmS, NewF.ScaledReg);
>
> @@ -3586,9 +3586,9 @@
>            Formula NewF = F;
>            NewF.AM.BaseOffs = (uint64_t)NewF.AM.BaseOffs + Imm;
>            if (!isLegalUse(NewF.AM, LU.MinOffset, LU.MaxOffset,
> -                          LU.Kind, LU.AccessTy, TLI)) {
> -            if (!TLI ||
> -                !TLI->isLegalAddImmediate((uint64_t)NewF.UnfoldedOffset + Imm))
> +                          LU.Kind, LU.AccessTy, STTI)) {
> +            if (!STTI ||
> +                !STTI->isLegalAddImmediate((uint64_t)NewF.UnfoldedOffset + Imm))
>                continue;
>              NewF = F;
>              NewF.UnfoldedOffset = (uint64_t)NewF.UnfoldedOffset + Imm;
> @@ -3900,7 +3900,7 @@
>                  Formula &F = LUThatHas->Formulae[i];
>                  if (!isLegalUse(F.AM,
>                                  LUThatHas->MinOffset, LUThatHas->MaxOffset,
> -                                LUThatHas->Kind, LUThatHas->AccessTy, TLI)) {
> +                                LUThatHas->Kind, LUThatHas->AccessTy, STTI)) {
>                    DEBUG(dbgs() << "  Deleting "; F.print(dbgs());
>                          dbgs() << '\n');
>                    LUThatHas->DeleteFormula(F);
> @@ -4589,12 +4589,12 @@
>    Changed |= DeleteTriviallyDeadInstructions(DeadInsts);
>  }
>
> -LSRInstance::LSRInstance(const TargetLowering *tli, Loop *l, Pass *P)
> +LSRInstance::LSRInstance(const ScalarTargetTransformInfo *stti, Loop *l, Pass *P)
>    : IU(P->getAnalysis<IVUsers>()),
>      SE(P->getAnalysis<ScalarEvolution>()),
>      DT(P->getAnalysis<DominatorTree>()),
>      LI(P->getAnalysis<LoopInfo>()),
> -    TLI(tli), L(l), Changed(false), IVIncInsertPos(0) {
> +    STTI(stti), L(l), Changed(false), IVIncInsertPos(0) {
>
>    // If LoopSimplify form is not available, stay out of trouble.
>    if (!L->isLoopSimplifyForm())
> @@ -4684,7 +4684,7 @@
>       for (SmallVectorImpl<Formula>::const_iterator J = LU.Formulae.begin(),
>            JE = LU.Formulae.end(); J != JE; ++J)
>          assert(isLegalUse(J->AM, LU.MinOffset, LU.MaxOffset,
> -                          LU.Kind, LU.AccessTy, TLI) &&
> +                          LU.Kind, LU.AccessTy, STTI) &&
>                 "Illegal formula generated!");
>    };
>  #endif
> @@ -4757,13 +4757,13 @@
>  namespace {
>
>  class LoopStrengthReduce : public LoopPass {
> -  /// TLI - Keep a pointer of a TargetLowering to consult for determining
> -  /// transformation profitability.
> -  const TargetLowering *const TLI;
> +  /// ScalarTargetTransformInfo provides target information that is needed
> +  /// for strength reducing loops.
> +  const ScalarTargetTransformInfo *STTI;
>
>  public:
>    static char ID; // Pass ID, replacement for typeid
> -  explicit LoopStrengthReduce(const TargetLowering *tli = 0);
> +  LoopStrengthReduce();
>
>  private:
>    bool runOnLoop(Loop *L, LPPassManager &LPM);
> @@ -4783,13 +4783,12 @@
>  INITIALIZE_PASS_END(LoopStrengthReduce, "loop-reduce",
>                  "Loop Strength Reduction", false, false)
>
> -
> -Pass *llvm::createLoopStrengthReducePass(const TargetLowering *TLI) {
> -  return new LoopStrengthReduce(TLI);
> +Pass *llvm::createLoopStrengthReducePass() {
> +  return new LoopStrengthReduce();
>  }
>
> -LoopStrengthReduce::LoopStrengthReduce(const TargetLowering *tli)
> -  : LoopPass(ID), TLI(tli) {
> +LoopStrengthReduce::LoopStrengthReduce()
> +  : LoopPass(ID), STTI(0) {
>      initializeLoopStrengthReducePass(*PassRegistry::getPassRegistry());
>    }
>
> @@ -4815,8 +4814,13 @@
>  bool LoopStrengthReduce::runOnLoop(Loop *L, LPPassManager & /*LPM*/) {
>    bool Changed = false;
>
> +  TargetTransformInfo *TTI = getAnalysisIfAvailable<TargetTransformInfo>();
> +
> +  if (TTI)
> +    STTI = TTI->getScalarTargetTransformInfo();
> +
>    // Run the main LSR transformation.
> -  Changed |= LSRInstance(TLI, L, this).getChanged();
> +  Changed |= LSRInstance(STTI, L, this).getChanged();
>
>    // Remove any extra phis created by processing inner loops.
>    Changed |= DeleteDeadPHIs(L->getHeader());
> @@ -4827,7 +4831,7 @@
>      Rewriter.setDebugType(DEBUG_TYPE);
>  #endif
>      unsigned numFolded = Rewriter.
> -      replaceCongruentIVs(L, &getAnalysis<DominatorTree>(), DeadInsts, TLI);
> +      replaceCongruentIVs(L, &getAnalysis<DominatorTree>(), DeadInsts, STTI);
>      if (numFolded) {
>        Changed = true;
>        DeleteTriviallyDeadInstructions(DeadInsts);
>
> Modified: llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp (original)
> +++ llvm/trunk/lib/Transforms/Utils/LowerInvoke.cpp Wed Oct 10 17:04:55 2012
> @@ -45,10 +45,10 @@
>  #include "llvm/Pass.h"
>  #include "llvm/Transforms/Utils/BasicBlockUtils.h"
>  #include "llvm/Transforms/Utils/Local.h"
> +#include "llvm/TargetTransformInfo.h"
>  #include "llvm/ADT/SmallVector.h"
>  #include "llvm/ADT/Statistic.h"
>  #include "llvm/Support/CommandLine.h"
> -#include "llvm/Target/TargetLowering.h"
>  #include <csetjmp>
>  #include <set>
>  using namespace llvm;
> @@ -70,15 +70,14 @@
>      Constant *SetJmpFn, *LongJmpFn, *StackSaveFn, *StackRestoreFn;
>      bool useExpensiveEHSupport;
>
> -    // We peek in TLI to grab the target's jmp_buf size and alignment
> -    const TargetLowering *TLI;
> +    // We peek in STTI to grab the target's jmp_buf size and alignment
> +    const ScalarTargetTransformInfo *STTI;
>
>    public:
>      static char ID; // Pass identification, replacement for typeid
> -    explicit LowerInvoke(const TargetLowering *tli = NULL,
> -                         bool useExpensiveEHSupport = ExpensiveEHSupport)
> +    explicit LowerInvoke(bool useExpensiveEHSupport = ExpensiveEHSupport)
>        : FunctionPass(ID), useExpensiveEHSupport(useExpensiveEHSupport),
> -        TLI(tli) {
> +        STTI(0) {
>        initializeLowerInvokePass(*PassRegistry::getPassRegistry());
>      }
>      bool doInitialization(Module &M);
> @@ -108,21 +107,24 @@
>  char &llvm::LowerInvokePassID = LowerInvoke::ID;
>
>  // Public Interface To the LowerInvoke pass.
> -FunctionPass *llvm::createLowerInvokePass(const TargetLowering *TLI) {
> -  return new LowerInvoke(TLI, ExpensiveEHSupport);
> +FunctionPass *llvm::createLowerInvokePass() {
> +  return new LowerInvoke(ExpensiveEHSupport);
>  }
> -FunctionPass *llvm::createLowerInvokePass(const TargetLowering *TLI,
> -                                          bool useExpensiveEHSupport) {
> -  return new LowerInvoke(TLI, useExpensiveEHSupport);
> +FunctionPass *llvm::createLowerInvokePass(bool useExpensiveEHSupport) {
> +  return new LowerInvoke(useExpensiveEHSupport);
>  }
>
>  // doInitialization - Make sure that there is a prototype for abort in the
>  // current module.
>  bool LowerInvoke::doInitialization(Module &M) {
> +  TargetTransformInfo *TTI = getAnalysisIfAvailable<TargetTransformInfo>();
> +  if (TTI)
> +    STTI = TTI->getScalarTargetTransformInfo();
> +
>    Type *VoidPtrTy = Type::getInt8PtrTy(M.getContext());
>    if (useExpensiveEHSupport) {
>      // Insert a type for the linked list of jump buffers.
> -    unsigned JBSize = TLI ? TLI->getJumpBufSize() : 0;
> +    unsigned JBSize = STTI ? STTI->getJumpBufSize() : 0;
>      JBSize = JBSize ? JBSize : 200;
>      Type *JmpBufTy = ArrayType::get(VoidPtrTy, JBSize);
>
> @@ -430,7 +432,7 @@
>      // Create an alloca for the incoming jump buffer ptr and the new jump buffer
>      // that needs to be restored on all exits from the function.  This is an
>      // alloca because the value needs to be live across invokes.
> -    unsigned Align = TLI ? TLI->getJumpBufAlignment() : 0;
> +    unsigned Align = STTI ? STTI->getJumpBufAlignment() : 0;
>      AllocaInst *JmpBuf =
>        new AllocaInst(JBLinkTy, 0, Align,
>                       "jblink", F.begin()->begin());
> @@ -575,6 +577,10 @@
>  }
>
>  bool LowerInvoke::runOnFunction(Function &F) {
> +  TargetTransformInfo *TTI = getAnalysisIfAvailable<TargetTransformInfo>();
> +  if (TTI)
> +    STTI = TTI->getScalarTargetTransformInfo();
> +
>    if (useExpensiveEHSupport)
>      return insertExpensiveEHSupport(F);
>    else
>
> Modified: llvm/trunk/lib/VMCore/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/CMakeLists.txt?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/lib/VMCore/CMakeLists.txt (original)
> +++ llvm/trunk/lib/VMCore/CMakeLists.txt Wed Oct 10 17:04:55 2012
> @@ -33,6 +33,7 @@
>    PrintModulePass.cpp
>    Type.cpp
>    TypeFinder.cpp
> +  TargetTransformInfo.cpp
>    Use.cpp
>    User.cpp
>    Value.cpp
>
> Added: llvm/trunk/lib/VMCore/TargetTransformInfo.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/TargetTransformInfo.cpp?rev=165665&view=auto
> ==============================================================================
> --- llvm/trunk/lib/VMCore/TargetTransformInfo.cpp (added)
> +++ llvm/trunk/lib/VMCore/TargetTransformInfo.cpp Wed Oct 10 17:04:55 2012
> @@ -0,0 +1,27 @@
> +//===- llvm/VMCore/TargetTransformInfo.cpp ----------------------*- C++ -*-===//
> +//
> +//                     The LLVM Compiler Infrastructure
> +//
> +// This file is distributed under the University of Illinois Open Source
> +// License. See LICENSE.TXT for details.
> +//
> +//===----------------------------------------------------------------------===//
> +
> +#include "llvm/TargetTransformInfo.h"
> +#include "llvm/Support/ErrorHandling.h"
> +
> +using namespace llvm;
> +
> +/// Default ctor.
> +///
> +/// @note This has to exist, because this is a pass, but it should never be
> +/// used.
> +TargetTransformInfo::TargetTransformInfo() : ImmutablePass(ID) {
> +  report_fatal_error("Bad TargetTransformInfo ctor used.  "
> +                     "Tool did not specify a TargetTransformInfo to use?");
> +}
> +
> +INITIALIZE_PASS(TargetTransformInfo, "TargetTransformInfo",
> +                "Target Transform Info", false, true)
> +char TargetTransformInfo::ID = 0;
> +
>
> Modified: llvm/trunk/tools/llc/llc.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llc/llc.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/tools/llc/llc.cpp (original)
> +++ llvm/trunk/tools/llc/llc.cpp Wed Oct 10 17:04:55 2012
> @@ -21,6 +21,7 @@
>  #include "llvm/ADT/Triple.h"
>  #include "llvm/Assembly/PrintModulePass.h"
>  #include "llvm/Support/IRReader.h"
> +#include "llvm/CodeGen/CommandFlags.h"
>  #include "llvm/CodeGen/LinkAllAsmWriterComponents.h"
>  #include "llvm/CodeGen/LinkAllCodegenComponents.h"
>  #include "llvm/MC/SubtargetFeature.h"
> @@ -62,216 +63,13 @@
>  static cl::opt<std::string>
>  TargetTriple("mtriple", cl::desc("Override target triple for module"));
>
> -static cl::opt<std::string>
> -MArch("march", cl::desc("Architecture to generate code for (see --version)"));
> -
> -static cl::opt<std::string>
> -MCPU("mcpu",
> -  cl::desc("Target a specific cpu type (-mcpu=help for details)"),
> -  cl::value_desc("cpu-name"),
> -  cl::init(""));
> -
> -static cl::list<std::string>
> -MAttrs("mattr",
> -  cl::CommaSeparated,
> -  cl::desc("Target specific attributes (-mattr=help for details)"),
> -  cl::value_desc("a1,+a2,-a3,..."));
> -
> -static cl::opt<Reloc::Model>
> -RelocModel("relocation-model",
> -             cl::desc("Choose relocation model"),
> -             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));
> -
> -static cl::opt<llvm::CodeModel::Model>
> -CMModel("code-model",
> -        cl::desc("Choose code model"),
> -        cl::init(CodeModel::Default),
> -        cl::values(clEnumValN(CodeModel::Default, "default",
> -                              "Target default code model"),
> -                   clEnumValN(CodeModel::Small, "small",
> -                              "Small code model"),
> -                   clEnumValN(CodeModel::Kernel, "kernel",
> -                              "Kernel code model"),
> -                   clEnumValN(CodeModel::Medium, "medium",
> -                              "Medium code model"),
> -                   clEnumValN(CodeModel::Large, "large",
> -                              "Large code model"),
> -                   clEnumValEnd));
> -
> -static cl::opt<bool>
> -RelaxAll("mc-relax-all",
> -  cl::desc("When used with filetype=obj, "
> -           "relax all fixups in the emitted object file"));
> -
> -cl::opt<TargetMachine::CodeGenFileType>
> -FileType("filetype", cl::init(TargetMachine::CGFT_AssemblyFile),
> -  cl::desc("Choose a file type (not all types are supported by all targets):"),
> -  cl::values(
> -       clEnumValN(TargetMachine::CGFT_AssemblyFile, "asm",
> -                  "Emit an assembly ('.s') file"),
> -       clEnumValN(TargetMachine::CGFT_ObjectFile, "obj",
> -                  "Emit a native object ('.o') file"),
> -       clEnumValN(TargetMachine::CGFT_Null, "null",
> -                  "Emit nothing, for performance testing"),
> -       clEnumValEnd));
> -
>  cl::opt<bool> NoVerify("disable-verify", cl::Hidden,
>                         cl::desc("Do not verify input module"));
>
> -cl::opt<bool> DisableDotLoc("disable-dot-loc", cl::Hidden,
> -                            cl::desc("Do not use .loc entries"));
> -
> -cl::opt<bool> DisableCFI("disable-cfi", cl::Hidden,
> -                         cl::desc("Do not use .cfi_* directives"));
> -
> -cl::opt<bool> EnableDwarfDirectory("enable-dwarf-directory", cl::Hidden,
> -    cl::desc("Use .file directives with an explicit directory."));
> -
> -static cl::opt<bool>
> -DisableRedZone("disable-red-zone",
> -  cl::desc("Do not emit code that uses the red zone."),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -EnableFPMAD("enable-fp-mad",
> -  cl::desc("Enable less precise MAD instructions to be generated"),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -DisableFPElim("disable-fp-elim",
> -  cl::desc("Disable frame pointer elimination optimization"),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -DisableFPElimNonLeaf("disable-non-leaf-fp-elim",
> -  cl::desc("Disable frame pointer elimination optimization for non-leaf funcs"),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -EnableUnsafeFPMath("enable-unsafe-fp-math",
> -  cl::desc("Enable optimizations that may decrease FP precision"),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -EnableNoInfsFPMath("enable-no-infs-fp-math",
> -  cl::desc("Enable FP math optimizations that assume no +-Infs"),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -EnableNoNaNsFPMath("enable-no-nans-fp-math",
> -  cl::desc("Enable FP math optimizations that assume no NaNs"),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -EnableHonorSignDependentRoundingFPMath("enable-sign-dependent-rounding-fp-math",
> -  cl::Hidden,
> -  cl::desc("Force codegen to assume rounding mode can change dynamically"),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -GenerateSoftFloatCalls("soft-float",
> -  cl::desc("Generate software floating point library calls"),
> -  cl::init(false));
> -
> -static cl::opt<llvm::FloatABI::ABIType>
> -FloatABIForCalls("float-abi",
> -  cl::desc("Choose float ABI type"),
> -  cl::init(FloatABI::Default),
> -  cl::values(
> -    clEnumValN(FloatABI::Default, "default",
> -               "Target default float ABI type"),
> -    clEnumValN(FloatABI::Soft, "soft",
> -               "Soft float ABI (implied by -soft-float)"),
> -    clEnumValN(FloatABI::Hard, "hard",
> -               "Hard float ABI (uses FP registers)"),
> -    clEnumValEnd));
> -
> -static cl::opt<llvm::FPOpFusion::FPOpFusionMode>
> -FuseFPOps("fp-contract",
> -  cl::desc("Enable aggresive formation of fused FP ops"),
> -  cl::init(FPOpFusion::Standard),
> -  cl::values(
> -    clEnumValN(FPOpFusion::Fast, "fast",
> -               "Fuse FP ops whenever profitable"),
> -    clEnumValN(FPOpFusion::Standard, "on",
> -               "Only fuse 'blessed' FP ops."),
> -    clEnumValN(FPOpFusion::Strict, "off",
> -               "Only fuse FP ops when the result won't be effected."),
> -    clEnumValEnd));
> -
> -static cl::opt<bool>
> -DontPlaceZerosInBSS("nozero-initialized-in-bss",
> -  cl::desc("Don't place zero-initialized symbols into bss section"),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> +cl::opt<bool>
>  DisableSimplifyLibCalls("disable-simplify-libcalls",
> -  cl::desc("Disable simplify-libcalls"),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -EnableGuaranteedTailCallOpt("tailcallopt",
> -  cl::desc("Turn fastcc calls into tail calls by (potentially) changing ABI."),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -DisableTailCalls("disable-tail-calls",
> -  cl::desc("Never emit tail calls"),
> -  cl::init(false));
> -
> -static cl::opt<unsigned>
> -OverrideStackAlignment("stack-alignment",
> -  cl::desc("Override default stack alignment"),
> -  cl::init(0));
> -
> -static cl::opt<bool>
> -EnableRealignStack("realign-stack",
> -  cl::desc("Realign stack if needed"),
> -  cl::init(true));
> -
> -static cl::opt<std::string>
> -TrapFuncName("trap-func", cl::Hidden,
> -  cl::desc("Emit a call to trap function rather than a trap instruction"),
> -  cl::init(""));
> -
> -static cl::opt<bool>
> -EnablePIE("enable-pie",
> -  cl::desc("Assume the creation of a position independent executable."),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -SegmentedStacks("segmented-stacks",
> -  cl::desc("Use segmented stacks if possible."),
> -  cl::init(false));
> -
> -static cl::opt<bool>
> -UseInitArray("use-init-array",
> -  cl::desc("Use .init_array instead of .ctors."),
> -  cl::init(false));
> -
> -static cl::opt<std::string> StopAfter("stop-after",
> -  cl::desc("Stop compilation after a specific pass"),
> -  cl::value_desc("pass-name"),
> -  cl::init(""));
> -static cl::opt<std::string> StartAfter("start-after",
> -  cl::desc("Resume compilation after a specific pass"),
> -  cl::value_desc("pass-name"),
> -  cl::init(""));
> -
> -static cl::opt<unsigned>
> -SSPBufferSize("stack-protector-buffer-size", cl::init(8),
> -              cl::desc("Lower bound for a buffer to be considered for "
> -                       "stack protection"));
> +                        cl::desc("Disable simplify-libcalls"),
> +                        cl::init(false));
>
>  // GetFileNameRoot - Helper function to get the basename of a filename.
>  static inline std::string
> @@ -505,6 +303,11 @@
>      TLI->disableAllFunctions();
>    PM.add(TLI);
>
> +  if (target.get()) {
> +    PM.add(new TargetTransformInfo(target->getScalarTargetTransformInfo(),
> +                                   target->getVectorTargetTransformInfo()));
> +  }
> +
>    // Add the target data from the target machine, if it exists, or the module.
>    if (const DataLayout *TD = Target.getDataLayout())
>      PM.add(new DataLayout(*TD));
>
> Modified: llvm/trunk/tools/opt/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/opt/CMakeLists.txt?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/tools/opt/CMakeLists.txt (original)
> +++ llvm/trunk/tools/opt/CMakeLists.txt Wed Oct 10 17:04:55 2012
> @@ -1,4 +1,4 @@
> -set(LLVM_LINK_COMPONENTS bitreader asmparser bitwriter instrumentation scalaropts ipo vectorize)
> +set(LLVM_LINK_COMPONENTS ${LLVM_TARGETS_TO_BUILD} bitreader asmparser bitwriter instrumentation scalaropts ipo vectorize)
>
>  add_llvm_tool(opt
>    AnalysisWrappers.cpp
>
> Modified: llvm/trunk/tools/opt/LLVMBuild.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/opt/LLVMBuild.txt?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/tools/opt/LLVMBuild.txt (original)
> +++ llvm/trunk/tools/opt/LLVMBuild.txt Wed Oct 10 17:04:55 2012
> @@ -19,4 +19,4 @@
>  type = Tool
>  name = opt
>  parent = Tools
> -required_libraries = AsmParser BitReader BitWriter IPO Instrumentation Scalar
> +required_libraries = AsmParser BitReader BitWriter IPO Instrumentation Scalar all-targets
>
> Modified: llvm/trunk/tools/opt/Makefile
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/opt/Makefile?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/tools/opt/Makefile (original)
> +++ llvm/trunk/tools/opt/Makefile Wed Oct 10 17:04:55 2012
> @@ -9,6 +9,6 @@
>
>  LEVEL := ../..
>  TOOLNAME := opt
> -LINK_COMPONENTS := bitreader bitwriter asmparser instrumentation scalaropts ipo vectorize
> +LINK_COMPONENTS := bitreader bitwriter asmparser instrumentation scalaropts ipo vectorize all-targets
>
>  include $(LEVEL)/Makefile.common
>
> Modified: llvm/trunk/tools/opt/opt.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/opt/opt.cpp?rev=165665&r1=165664&r2=165665&view=diff
> ==============================================================================
> --- llvm/trunk/tools/opt/opt.cpp (original)
> +++ llvm/trunk/tools/opt/opt.cpp Wed Oct 10 17:04:55 2012
> @@ -18,6 +18,7 @@
>  #include "llvm/Module.h"
>  #include "llvm/PassManager.h"
>  #include "llvm/CallGraphSCCPass.h"
> +#include "llvm/CodeGen/CommandFlags.h"
>  #include "llvm/Bitcode/ReaderWriter.h"
>  #include "llvm/Assembly/PrintModulePass.h"
>  #include "llvm/Analysis/Verifier.h"
> @@ -36,7 +37,9 @@
>  #include "llvm/Support/PluginLoader.h"
>  #include "llvm/Support/PrettyStackTrace.h"
>  #include "llvm/Support/SystemUtils.h"
> +#include "llvm/Support/TargetRegistry.h"
>  #include "llvm/Support/ToolOutputFile.h"
> +#include "llvm/MC/SubtargetFeature.h"
>  #include "llvm/LinkAllPasses.h"
>  #include "llvm/LinkAllVMCore.h"
>  #include "llvm/Transforms/IPO/PassManagerBuilder.h"
> @@ -478,6 +481,75 @@
>                                   /*RunInliner=*/ !DisableInline);
>  }
>
> +//===----------------------------------------------------------------------===//
> +// CodeGen-related helper functions.
> +//
> +static TargetOptions GetTargetOptions() {
> +  TargetOptions Options;
> +  Options.LessPreciseFPMADOption = EnableFPMAD;
> +  Options.NoFramePointerElim = DisableFPElim;
> +  Options.NoFramePointerElimNonLeaf = DisableFPElimNonLeaf;
> +  Options.AllowFPOpFusion = FuseFPOps;
> +  Options.UnsafeFPMath = EnableUnsafeFPMath;
> +  Options.NoInfsFPMath = EnableNoInfsFPMath;
> +  Options.NoNaNsFPMath = EnableNoNaNsFPMath;
> +  Options.HonorSignDependentRoundingFPMathOption =
> +  EnableHonorSignDependentRoundingFPMath;
> +  Options.UseSoftFloat = GenerateSoftFloatCalls;
> +  if (FloatABIForCalls != FloatABI::Default)
> +    Options.FloatABIType = FloatABIForCalls;
> +  Options.NoZerosInBSS = DontPlaceZerosInBSS;
> +  Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt;
> +  Options.DisableTailCalls = DisableTailCalls;
> +  Options.StackAlignmentOverride = OverrideStackAlignment;
> +  Options.RealignStack = EnableRealignStack;
> +  Options.TrapFuncName = TrapFuncName;
> +  Options.PositionIndependentExecutable = EnablePIE;
> +  Options.EnableSegmentedStacks = SegmentedStacks;
> +  Options.UseInitArray = UseInitArray;
> +  Options.SSPBufferSize = SSPBufferSize;
> +  return Options;
> +}
> +
> +CodeGenOpt::Level GetCodeGenOptLevel() {
> +  if (OptLevelO1)
> +    return CodeGenOpt::Less;
> +  if (OptLevelO2)
> +    return CodeGenOpt::Default;
> +  if (OptLevelO3)
> +    return CodeGenOpt::Aggressive;
> +  return CodeGenOpt::None;
> +}
> +
> +// Returns the TargetMachine instance or zero if no triple is provided.
> +static TargetMachine* GetTargetMachine(std::string TripleStr) {
> +  if (TripleStr.empty())
> +    return 0;
> +
> +  // Get the target specific parser.
> +  std::string Error;
> +  Triple TheTriple(Triple::normalize(TargetTriple));
> +
> +  const Target *TheTarget = TargetRegistry::lookupTarget(MArch, TheTriple,
> +                                                         Error);
> +  if (!TheTarget) {
> +    return 0;
> +  }
> +
> +  // Package up features to be passed to target/subtarget
> +  std::string FeaturesStr;
> +  if (MAttrs.size()) {
> +    SubtargetFeatures Features;
> +    for (unsigned i = 0; i != MAttrs.size(); ++i)
> +      Features.AddFeature(MAttrs[i]);
> +    FeaturesStr = Features.getString();
> +  }
> +
> +  return TheTarget->createTargetMachine(TheTriple.getTriple(),
> +                                        MCPU, FeaturesStr, GetTargetOptions(),
> +                                        RelocModel, CMModel,
> +                                        GetCodeGenOptLevel());
> +}
>
>  //===----------------------------------------------------------------------===//
>  // main for opt
> @@ -579,6 +651,12 @@
>    if (TD)
>      Passes.add(TD);
>
> +  std::auto_ptr<TargetMachine> TM(GetTargetMachine(TargetTriple));
> +  if (TM.get()) {
> +    Passes.add(new TargetTransformInfo(TM->getScalarTargetTransformInfo(),
> +                                       TM->getVectorTargetTransformInfo()));
> +  }
> +
>    OwningPtr<FunctionPassManager> FPasses;
>    if (OptLevelO1 || OptLevelO2 || OptLevelOs || OptLevelOz || OptLevelO3) {
>      FPasses.reset(new FunctionPassManager(M.get()));
>
>
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