diff options
Diffstat (limited to 'include/llvm')
| -rw-r--r-- | include/llvm/Analysis/ScalarEvolutionExpander.h | 4 | ||||
| -rw-r--r-- | include/llvm/CodeGen/CommandFlags.h | 228 | ||||
| -rw-r--r-- | include/llvm/InitializePasses.h | 1 | ||||
| -rw-r--r-- | include/llvm/Target/TargetMachine.h | 6 | ||||
| -rw-r--r-- | include/llvm/Target/TargetTransformImpl.h | 54 | ||||
| -rw-r--r-- | include/llvm/TargetTransformInfo.h | 126 | ||||
| -rw-r--r-- | include/llvm/Transforms/Scalar.h | 7 |
7 files changed, 420 insertions, 6 deletions
diff --git a/include/llvm/Analysis/ScalarEvolutionExpander.h b/include/llvm/Analysis/ScalarEvolutionExpander.h index 3f8f149cb4..3ab9c8256b 100644 --- a/include/llvm/Analysis/ScalarEvolutionExpander.h +++ b/include/llvm/Analysis/ScalarEvolutionExpander.h @@ -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 @@ namespace llvm { /// 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 diff --git a/include/llvm/CodeGen/CommandFlags.h b/include/llvm/CodeGen/CommandFlags.h new file mode 100644 index 0000000000..90ee234244 --- /dev/null +++ b/include/llvm/CodeGen/CommandFlags.h @@ -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 diff --git a/include/llvm/InitializePasses.h b/include/llvm/InitializePasses.h index 409246cf14..067d8dae1d 100644 --- a/include/llvm/InitializePasses.h +++ b/include/llvm/InitializePasses.h @@ -247,6 +247,7 @@ void initializeTailCallElimPass(PassRegistry&); void initializeTailDuplicatePassPass(PassRegistry&); void initializeTargetPassConfigPass(PassRegistry&); void initializeDataLayoutPass(PassRegistry&); +void initializeTargetTransformInfoPass(PassRegistry&); void initializeTargetLibraryInfoPass(PassRegistry&); void initializeTwoAddressInstructionPassPass(PassRegistry&); void initializeTypeBasedAliasAnalysisPass(PassRegistry&); diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h index 988916f9d9..18e589e2bc 100644 --- a/include/llvm/Target/TargetMachine.h +++ b/include/llvm/Target/TargetMachine.h @@ -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 @@ public: 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. /// diff --git a/include/llvm/Target/TargetTransformImpl.h b/include/llvm/Target/TargetTransformImpl.h new file mode 100644 index 0000000000..e240cdf64a --- /dev/null +++ b/include/llvm/Target/TargetTransformImpl.h @@ -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 diff --git a/include/llvm/TargetTransformInfo.h b/include/llvm/TargetTransformInfo.h new file mode 100644 index 0000000000..e1be3ba5a1 --- /dev/null +++ b/include/llvm/TargetTransformInfo.h @@ -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 diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h index a5d8eed746..3b665bf4b6 100644 --- a/include/llvm/Transforms/Scalar.h +++ b/include/llvm/Transforms/Scalar.h @@ -119,7 +119,7 @@ Pass *createLICMPass(); // 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 @@ extern char &LowerSwitchID; // 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; //===----------------------------------------------------------------------===// |