X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FTransforms%2FScalar.h;h=0a37d838a93196acbcc0c4aee808dacb7da59131;hb=eb6eb153d9dc22bf006f260d3975babe075da5f2;hp=0c35d7e01fa440ca989000b40046cfc5b973d109;hpb=25e9405272630204eb721d8b6ab47a5a25f24885;p=oota-llvm.git diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h index 0c35d7e01fa..0a37d838a93 100644 --- a/include/llvm/Transforms/Scalar.h +++ b/include/llvm/Transforms/Scalar.h @@ -15,14 +15,21 @@ #ifndef LLVM_TRANSFORMS_SCALAR_H #define LLVM_TRANSFORMS_SCALAR_H +#include "llvm/ADT/StringRef.h" +#include + namespace llvm { +class BasicBlockPass; +class Function; class FunctionPass; +class ModulePass; class Pass; class GetElementPtrInst; class PassInfo; class TerminatorInst; class TargetLowering; +class TargetMachine; //===----------------------------------------------------------------------===// // @@ -30,6 +37,13 @@ class TargetLowering; // FunctionPass *createConstantPropagationPass(); +//===----------------------------------------------------------------------===// +// +// AlignmentFromAssumptions - Use assume intrinsics to set load/store +// alignments. +// +FunctionPass *createAlignmentFromAssumptionsPass(); + //===----------------------------------------------------------------------===// // // SCCP - Sparse conditional constant propagation. @@ -68,12 +82,36 @@ FunctionPass *createDeadStoreEliminationPass(); // FunctionPass *createAggressiveDCEPass(); +//===----------------------------------------------------------------------===// +// +// BitTrackingDCE - This pass uses a bit-tracking DCE algorithm in order to +// remove computations of dead bits. +// +FunctionPass *createBitTrackingDCEPass(); + +//===----------------------------------------------------------------------===// +// +// SROA - Replace aggregates or pieces of aggregates with scalar SSA values. +// +FunctionPass *createSROAPass(bool RequiresDomTree = true); + //===----------------------------------------------------------------------===// // // ScalarReplAggregates - Break up alloca's of aggregates into multiple allocas // if possible. // -FunctionPass *createScalarReplAggregatesPass(signed Threshold = -1); +FunctionPass *createScalarReplAggregatesPass(signed Threshold = -1, + bool UseDomTree = true, + signed StructMemberThreshold = -1, + signed ArrayElementThreshold = -1, + signed ScalarLoadThreshold = -1); + +//===----------------------------------------------------------------------===// +// +// InductiveRangeCheckElimination - Transform loops to elide range checks on +// linear functions of the induction variable. +// +Pass *createInductiveRangeCheckEliminationPass(); //===----------------------------------------------------------------------===// // @@ -102,14 +140,29 @@ FunctionPass *createInstructionCombiningPass(); // Pass *createLICMPass(); +//===----------------------------------------------------------------------===// +// +// LoopInterchange - This pass interchanges loops to provide a more +// cache-friendly memory access patterns. +// +Pass *createLoopInterchangePass(); + //===----------------------------------------------------------------------===// // // LoopStrengthReduce - This pass is strength reduces GEP instructions that use -// a loop's canonical induction variable as one of their indices. It takes an -// optional parameter used to consult the target machine whether certain -// transformations are profitable. +// a loop's canonical induction variable as one of their indices. // -Pass *createLoopStrengthReducePass(const TargetLowering *TLI = 0); +Pass *createLoopStrengthReducePass(); + +//===----------------------------------------------------------------------===// +// +// GlobalMerge - This pass merges internal (by default) globals into structs +// to enable reuse of a base pointer by indexed addressing modes. +// It can also be configured to focus on size optimizations only. +// +Pass *createGlobalMergePass(const TargetMachine *TM, unsigned MaximalOffset, + bool OnlyOptimizeForSize = false, + bool MergeExternalByDefault = false); //===----------------------------------------------------------------------===// // @@ -117,24 +170,38 @@ Pass *createLoopStrengthReducePass(const TargetLowering *TLI = 0); // Pass *createLoopUnswitchPass(bool OptimizeForSize = false); +//===----------------------------------------------------------------------===// +// +// LoopInstSimplify - This pass simplifies instructions in a loop's body. +// +Pass *createLoopInstSimplifyPass(); + //===----------------------------------------------------------------------===// // // LoopUnroll - This pass is a simple loop unrolling pass. // -Pass *createLoopUnrollPass(); +Pass *createLoopUnrollPass(int Threshold = -1, int Count = -1, + int AllowPartial = -1, int Runtime = -1); +// Create an unrolling pass for full unrolling only. +Pass *createSimpleLoopUnrollPass(); + +//===----------------------------------------------------------------------===// +// +// LoopReroll - This pass is a simple loop rerolling pass. +// +Pass *createLoopRerollPass(); //===----------------------------------------------------------------------===// // // LoopRotate - This pass is a simple loop rotating pass. // -Pass *createLoopRotatePass(); +Pass *createLoopRotatePass(int MaxHeaderSize = -1); //===----------------------------------------------------------------------===// // -// LoopIndexSplit - This pass divides loop's iteration range by spliting loop -// such that each individual loop is executed efficiently. +// LoopIdiom - This pass recognizes and replaces idioms in loops. // -Pass *createLoopIndexSplitPass(); +Pass *createLoopIdiomPass(); //===----------------------------------------------------------------------===// // @@ -170,24 +237,32 @@ FunctionPass *createReassociatePass(); //===----------------------------------------------------------------------===// // -// TailDuplication - Eliminate unconditional branches through controlled code -// duplication, creating simpler CFG structures. +// JumpThreading - Thread control through mult-pred/multi-succ blocks where some +// preds always go to some succ. Thresholds other than minus one override the +// internal BB duplication default threshold. // -FunctionPass *createTailDuplicationPass(); +FunctionPass *createJumpThreadingPass(int Threshold = -1); //===----------------------------------------------------------------------===// // -// JumpThreading - Thread control through mult-pred/multi-succ blocks where some -// preds always go to some succ. +// CFGSimplification - Merge basic blocks, eliminate unreachable blocks, +// simplify terminator instructions, etc... // -FunctionPass *createJumpThreadingPass(); - +FunctionPass *createCFGSimplificationPass( + int Threshold = -1, std::function Ftor = nullptr); + //===----------------------------------------------------------------------===// // -// CFGSimplification - Merge basic blocks, eliminate unreachable blocks, -// simplify terminator instructions, etc... +// FlattenCFG - flatten CFG, reduce number of conditional branches by using +// parallel-and and parallel-or mode, etc... // -FunctionPass *createCFGSimplificationPass(); +FunctionPass *createFlattenCFGPass(); + +//===----------------------------------------------------------------------===// +// +// CFG Structurization - Remove irreducible control flow +// +Pass *createStructurizeCFGPass(); //===----------------------------------------------------------------------===// // @@ -231,26 +306,12 @@ extern char &LowerSwitchID; //===----------------------------------------------------------------------===// // -// LowerInvoke - This pass converts invoke and unwind instructions to use sjlj -// exception handling mechanisms. Note that after this pass runs the CFG is not -// entirely accurate (exceptional control flow edges are not correct anymore) so -// only very simple things should be done after the lowerinvoke pass has run -// (like generation of native code). This should *NOT* be used as a general -// purpose "my LLVM-to-LLVM pass doesn't support the invoke instruction yet" -// lowering pass. +// LowerInvoke - This pass removes invoke instructions, converting them to call +// instructions. // -FunctionPass *createLowerInvokePass(const TargetLowering *TLI = 0); -FunctionPass *createLowerInvokePass(const TargetLowering *TLI, - bool useExpensiveEHSupport); +FunctionPass *createLowerInvokePass(); extern char &LowerInvokePassID; -//===----------------------------------------------------------------------===// -// -// BlockPlacement - This pass reorders basic blocks in order to increase the -// number of fall-through conditional branches. -// -FunctionPass *createBlockPlacementPass(); - //===----------------------------------------------------------------------===// // // LCSSA - This pass inserts phi nodes at loop boundaries to simplify other loop @@ -261,7 +322,21 @@ extern char &LCSSAID; //===----------------------------------------------------------------------===// // -// GVN - This pass performs global value numbering and redundant load +// EarlyCSE - This pass performs a simple and fast CSE pass over the dominator +// tree. +// +FunctionPass *createEarlyCSEPass(); + +//===----------------------------------------------------------------------===// +// +// MergedLoadStoreMotion - This pass merges loads and stores in diamonds. Loads +// are hoisted into the header, while stores sink into the footer. +// +FunctionPass *createMergedLoadStoreMotionPass(); + +//===----------------------------------------------------------------------===// +// +// GVN - This pass performs global value numbering and redundant load // elimination cotemporaneously. // FunctionPass *createGVNPass(bool NoLoads = false); @@ -279,24 +354,12 @@ FunctionPass *createMemCpyOptPass(); // can prove are dead. // Pass *createLoopDeletionPass(); - -//===----------------------------------------------------------------------===// -// -/// createSimplifyLibCallsPass - This pass optimizes specific calls to -/// specific well-known (library) functions. -FunctionPass *createSimplifyLibCallsPass(); - -//===----------------------------------------------------------------------===// -// -/// createSimplifyHalfPowrLibCallsPass - This is an experimental pass that -/// optimizes specific half_pow functions. -FunctionPass *createSimplifyHalfPowrLibCallsPass(); //===----------------------------------------------------------------------===// // -// CodeGenPrepare - This pass prepares a function for instruction selection. +// ConstantHoisting - This pass prepares a function for expensive constants. // -FunctionPass *createCodeGenPreparePass(const TargetLowering *TLI = 0); +FunctionPass *createConstantHoistingPass(); //===----------------------------------------------------------------------===// // @@ -304,12 +367,6 @@ FunctionPass *createCodeGenPreparePass(const TargetLowering *TLI = 0); // FunctionPass *createInstructionNamerPass(); extern char &InstructionNamerID; - -//===----------------------------------------------------------------------===// -// -// GEPSplitter - Split complex GEPs into simple ones -// -FunctionPass *createGEPSplitterPass(); //===----------------------------------------------------------------------===// // @@ -329,6 +386,100 @@ Pass *createLowerAtomicPass(); // Pass *createCorrelatedValuePropagationPass(); +//===----------------------------------------------------------------------===// +// +// InstructionSimplifier - Remove redundant instructions. +// +FunctionPass *createInstructionSimplifierPass(); +extern char &InstructionSimplifierID; + +//===----------------------------------------------------------------------===// +// +// LowerExpectIntrinsics - Removes llvm.expect intrinsics and creates +// "block_weights" metadata. +FunctionPass *createLowerExpectIntrinsicPass(); + +//===----------------------------------------------------------------------===// +// +// PartiallyInlineLibCalls - Tries to inline the fast path of library +// calls such as sqrt. +// +FunctionPass *createPartiallyInlineLibCallsPass(); + +//===----------------------------------------------------------------------===// +// +// ScalarizerPass - Converts vector operations into scalar operations +// +FunctionPass *createScalarizerPass(); + +//===----------------------------------------------------------------------===// +// +// AddDiscriminators - Add DWARF path discriminators to the IR. +FunctionPass *createAddDiscriminatorsPass(); + +//===----------------------------------------------------------------------===// +// +// SeparateConstOffsetFromGEP - Split GEPs for better CSE +// +FunctionPass * +createSeparateConstOffsetFromGEPPass(const TargetMachine *TM = nullptr, + bool LowerGEP = false); + +//===----------------------------------------------------------------------===// +// +// SpeculativeExecution - Aggressively hoist instructions to enable +// speculative execution on targets where branches are expensive. +// +FunctionPass *createSpeculativeExecutionPass(); + +//===----------------------------------------------------------------------===// +// +// LoadCombine - Combine loads into bigger loads. +// +BasicBlockPass *createLoadCombinePass(); + +//===----------------------------------------------------------------------===// +// +// StraightLineStrengthReduce - This pass strength-reduces some certain +// instruction patterns in straight-line code. +// +FunctionPass *createStraightLineStrengthReducePass(); + +//===----------------------------------------------------------------------===// +// +// PlaceSafepoints - Rewrite any IR calls to gc.statepoints and insert any +// safepoint polls (method entry, backedge) that might be required. This pass +// does not generate explicit relocation sequences - that's handled by +// RewriteStatepointsForGC which can be run at an arbitrary point in the pass +// order following this pass. +// +FunctionPass *createPlaceSafepointsPass(); + +//===----------------------------------------------------------------------===// +// +// RewriteStatepointsForGC - Rewrite any gc.statepoints which do not yet have +// explicit relocations to include explicit relocations. +// +ModulePass *createRewriteStatepointsForGCPass(); + +//===----------------------------------------------------------------------===// +// +// Float2Int - Demote floats to ints where possible. +// +FunctionPass *createFloat2IntPass(); + +//===----------------------------------------------------------------------===// +// +// NaryReassociate - Simplify n-ary operations by reassociation. +// +FunctionPass *createNaryReassociatePass(); + +//===----------------------------------------------------------------------===// +// +// LoopDistribute - Distribute loops. +// +FunctionPass *createLoopDistributePass(); + } // End llvm namespace #endif