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author | Nick Desaulniers <ndesaulniers@google.com> | 2019-11-18 17:42:44 -0800 |
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committer | Nick Desaulniers <ndesaulniers@google.com> | 2019-11-18 17:46:17 -0800 |
commit | ec72e15d63836c00a43f358e2f38faf843a64ce3 (patch) | |
tree | 3d9027e1afbffa44184ecf031c276f231a9260fd /clang-r370808/include/llvm/Transforms/Scalar.h | |
parent | 83d401b133d301508c2a8e0f9afccc8dbcea5f08 (diff) | |
download | prebuilts_clang_host_linux-x86-ec72e15d63836c00a43f358e2f38faf843a64ce3.tar.gz prebuilts_clang_host_linux-x86-ec72e15d63836c00a43f358e2f38faf843a64ce3.tar.bz2 prebuilts_clang_host_linux-x86-ec72e15d63836c00a43f358e2f38faf843a64ce3.zip |
Update prebuilt Clang to r370808.
clang 10.0.1 (based on r370808) from build 6016109.
Bug: http://b/139945549
Test: N/A
Change-Id: Ie40b5bad50b89e3bc4f52dcedc911b7fd2f5beb6
Diffstat (limited to 'clang-r370808/include/llvm/Transforms/Scalar.h')
-rw-r--r-- | clang-r370808/include/llvm/Transforms/Scalar.h | 514 |
1 files changed, 514 insertions, 0 deletions
diff --git a/clang-r370808/include/llvm/Transforms/Scalar.h b/clang-r370808/include/llvm/Transforms/Scalar.h new file mode 100644 index 00000000..f9360b5e --- /dev/null +++ b/clang-r370808/include/llvm/Transforms/Scalar.h @@ -0,0 +1,514 @@ +//===-- Scalar.h - Scalar Transformations -----------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This header file defines prototypes for accessor functions that expose passes +// in the Scalar transformations library. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_TRANSFORMS_SCALAR_H +#define LLVM_TRANSFORMS_SCALAR_H + +#include <functional> + +namespace llvm { + +class BasicBlockPass; +class Function; +class FunctionPass; +class ModulePass; +class Pass; +class GetElementPtrInst; +class PassInfo; +class TargetLowering; +class TargetMachine; + +//===----------------------------------------------------------------------===// +// +// ConstantPropagation - A worklist driven constant propagation pass +// +FunctionPass *createConstantPropagationPass(); + +//===----------------------------------------------------------------------===// +// +// AlignmentFromAssumptions - Use assume intrinsics to set load/store +// alignments. +// +FunctionPass *createAlignmentFromAssumptionsPass(); + +//===----------------------------------------------------------------------===// +// +// SCCP - Sparse conditional constant propagation. +// +FunctionPass *createSCCPPass(); + +//===----------------------------------------------------------------------===// +// +// DeadInstElimination - This pass quickly removes trivially dead instructions +// without modifying the CFG of the function. It is a BasicBlockPass, so it +// runs efficiently when queued next to other BasicBlockPass's. +// +Pass *createDeadInstEliminationPass(); + +//===----------------------------------------------------------------------===// +// +// DeadCodeElimination - This pass is more powerful than DeadInstElimination, +// because it is worklist driven that can potentially revisit instructions when +// their other instructions become dead, to eliminate chains of dead +// computations. +// +FunctionPass *createDeadCodeEliminationPass(); + +//===----------------------------------------------------------------------===// +// +// DeadStoreElimination - This pass deletes stores that are post-dominated by +// must-aliased stores and are not loaded used between the stores. +// +FunctionPass *createDeadStoreEliminationPass(); + + +//===----------------------------------------------------------------------===// +// +// CallSiteSplitting - This pass split call-site based on its known argument +// values. +FunctionPass *createCallSiteSplittingPass(); + +//===----------------------------------------------------------------------===// +// +// AggressiveDCE - This pass uses the SSA based Aggressive DCE algorithm. This +// algorithm assumes instructions are dead until proven otherwise, which makes +// it more successful are removing non-obviously dead instructions. +// +FunctionPass *createAggressiveDCEPass(); + +//===----------------------------------------------------------------------===// +// +// GuardWidening - An optimization over the @llvm.experimental.guard intrinsic +// that (optimistically) combines multiple guards into one to have fewer checks +// at runtime. +// +FunctionPass *createGuardWideningPass(); + + +//===----------------------------------------------------------------------===// +// +// LoopGuardWidening - Analogous to the GuardWidening pass, but restricted to a +// single loop at a time for use within a LoopPassManager. Desired effect is +// to widen guards into preheader or a single guard within loop if that's not +// possible. +// +Pass *createLoopGuardWideningPass(); + + +//===----------------------------------------------------------------------===// +// +// 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(); + +//===----------------------------------------------------------------------===// +// +// InductiveRangeCheckElimination - Transform loops to elide range checks on +// linear functions of the induction variable. +// +Pass *createInductiveRangeCheckEliminationPass(); + +//===----------------------------------------------------------------------===// +// +// InductionVariableSimplify - Transform induction variables in a program to all +// use a single canonical induction variable per loop. +// +Pass *createIndVarSimplifyPass(); + +//===----------------------------------------------------------------------===// +// +// LICM - This pass is a loop invariant code motion and memory promotion pass. +// +Pass *createLICMPass(); +Pass *createLICMPass(unsigned LicmMssaOptCap, + unsigned LicmMssaNoAccForPromotionCap); + +//===----------------------------------------------------------------------===// +// +// LoopSink - This pass sinks invariants from preheader to loop body where +// frequency is lower than loop preheader. +// +Pass *createLoopSinkPass(); + +//===----------------------------------------------------------------------===// +// +// LoopPredication - This pass does loop predication on guards. +// +Pass *createLoopPredicationPass(); + +//===----------------------------------------------------------------------===// +// +// 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. +// +Pass *createLoopStrengthReducePass(); + +//===----------------------------------------------------------------------===// +// +// LoopUnswitch - This pass is a simple loop unswitching pass. +// +Pass *createLoopUnswitchPass(bool OptimizeForSize = false, + bool hasBranchDivergence = false); + +//===----------------------------------------------------------------------===// +// +// LoopInstSimplify - This pass simplifies instructions in a loop's body. +// +Pass *createLoopInstSimplifyPass(); + +//===----------------------------------------------------------------------===// +// +// LoopUnroll - This pass is a simple loop unrolling pass. +// +Pass *createLoopUnrollPass(int OptLevel = 2, bool OnlyWhenForced = false, + bool ForgetAllSCEV = false, int Threshold = -1, + int Count = -1, int AllowPartial = -1, + int Runtime = -1, int UpperBound = -1, + int AllowPeeling = -1); +// Create an unrolling pass for full unrolling that uses exact trip count only. +Pass *createSimpleLoopUnrollPass(int OptLevel = 2, bool OnlyWhenForced = false, + bool ForgetAllSCEV = false); + +//===----------------------------------------------------------------------===// +// +// LoopUnrollAndJam - This pass is a simple loop unroll and jam pass. +// +Pass *createLoopUnrollAndJamPass(int OptLevel = 2); + +//===----------------------------------------------------------------------===// +// +// LoopReroll - This pass is a simple loop rerolling pass. +// +Pass *createLoopRerollPass(); + +//===----------------------------------------------------------------------===// +// +// LoopRotate - This pass is a simple loop rotating pass. +// +Pass *createLoopRotatePass(int MaxHeaderSize = -1); + +//===----------------------------------------------------------------------===// +// +// LoopIdiom - This pass recognizes and replaces idioms in loops. +// +Pass *createLoopIdiomPass(); + +//===----------------------------------------------------------------------===// +// +// LoopVersioningLICM - This pass is a loop versioning pass for LICM. +// +Pass *createLoopVersioningLICMPass(); + +//===----------------------------------------------------------------------===// +// +// DemoteRegisterToMemoryPass - This pass is used to demote registers to memory +// references. In basically undoes the PromoteMemoryToRegister pass to make cfg +// hacking easier. +// +FunctionPass *createDemoteRegisterToMemoryPass(); +extern char &DemoteRegisterToMemoryID; + +//===----------------------------------------------------------------------===// +// +// Reassociate - This pass reassociates commutative expressions in an order that +// is designed to promote better constant propagation, GCSE, LICM, PRE... +// +// For example: 4 + (x + 5) -> x + (4 + 5) +// +FunctionPass *createReassociatePass(); + +//===----------------------------------------------------------------------===// +// +// 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 *createJumpThreadingPass(int Threshold = -1); + +//===----------------------------------------------------------------------===// +// +// CFGSimplification - Merge basic blocks, eliminate unreachable blocks, +// simplify terminator instructions, convert switches to lookup tables, etc. +// +FunctionPass *createCFGSimplificationPass( + unsigned Threshold = 1, bool ForwardSwitchCond = false, + bool ConvertSwitch = false, bool KeepLoops = true, bool SinkCommon = false, + std::function<bool(const Function &)> Ftor = nullptr); + +//===----------------------------------------------------------------------===// +// +// FlattenCFG - flatten CFG, reduce number of conditional branches by using +// parallel-and and parallel-or mode, etc... +// +FunctionPass *createFlattenCFGPass(); + +//===----------------------------------------------------------------------===// +// +// CFG Structurization - Remove irreducible control flow +// +/// +/// When \p SkipUniformRegions is true the structizer will not structurize +/// regions that only contain uniform branches. +Pass *createStructurizeCFGPass(bool SkipUniformRegions = false); + +//===----------------------------------------------------------------------===// +// +// TailCallElimination - This pass eliminates call instructions to the current +// function which occur immediately before return instructions. +// +FunctionPass *createTailCallEliminationPass(); + +//===----------------------------------------------------------------------===// +// +// EarlyCSE - This pass performs a simple and fast CSE pass over the dominator +// tree. +// +FunctionPass *createEarlyCSEPass(bool UseMemorySSA = false); + +//===----------------------------------------------------------------------===// +// +// GVNHoist - This pass performs a simple and fast GVN pass over the dominator +// tree to hoist common expressions from sibling branches. +// +FunctionPass *createGVNHoistPass(); + +//===----------------------------------------------------------------------===// +// +// GVNSink - This pass uses an "inverted" value numbering to decide the +// similarity of expressions and sinks similar expressions into successors. +// +FunctionPass *createGVNSinkPass(); + +//===----------------------------------------------------------------------===// +// +// 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 *createNewGVNPass(); + +//===----------------------------------------------------------------------===// +// +// DivRemPairs - Hoist/decompose integer division and remainder instructions. +// +FunctionPass *createDivRemPairsPass(); + +//===----------------------------------------------------------------------===// +// +// MemCpyOpt - This pass performs optimizations related to eliminating memcpy +// calls and/or combining multiple stores into memset's. +// +FunctionPass *createMemCpyOptPass(); + +//===----------------------------------------------------------------------===// +// +// LoopDeletion - This pass performs DCE of non-infinite loops that it +// can prove are dead. +// +Pass *createLoopDeletionPass(); + +//===----------------------------------------------------------------------===// +// +// ConstantHoisting - This pass prepares a function for expensive constants. +// +FunctionPass *createConstantHoistingPass(); + +//===----------------------------------------------------------------------===// +// +// Sink - Code Sinking +// +FunctionPass *createSinkingPass(); + +//===----------------------------------------------------------------------===// +// +// LowerAtomic - Lower atomic intrinsics to non-atomic form +// +Pass *createLowerAtomicPass(); + +//===----------------------------------------------------------------------===// +// +// LowerGuardIntrinsic - Lower guard intrinsics to normal control flow. +// +Pass *createLowerGuardIntrinsicPass(); + +//===----------------------------------------------------------------------===// +// +// LowerWidenableCondition - Lower widenable condition to i1 true. +// +Pass *createLowerWidenableConditionPass(); + +//===----------------------------------------------------------------------===// +// +// MergeICmps - Merge integer comparison chains into a memcmp +// +Pass *createMergeICmpsLegacyPass(); + +//===----------------------------------------------------------------------===// +// +// ValuePropagation - Propagate CFG-derived value information +// +Pass *createCorrelatedValuePropagationPass(); + +//===----------------------------------------------------------------------===// +// +// InferAddressSpaces - Modify users of addrspacecast instructions with values +// in the source address space if using the destination address space is slower +// on the target. If AddressSpace is left to its default value, it will be +// obtained from the TargetTransformInfo. +// +FunctionPass *createInferAddressSpacesPass(unsigned AddressSpace = ~0u); +extern char &InferAddressSpacesID; + +//===----------------------------------------------------------------------===// +// +// 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(); + +//===----------------------------------------------------------------------===// +// +// SeparateConstOffsetFromGEP - Split GEPs for better CSE +// +FunctionPass *createSeparateConstOffsetFromGEPPass(bool LowerGEP = false); + +//===----------------------------------------------------------------------===// +// +// SpeculativeExecution - Aggressively hoist instructions to enable +// speculative execution on targets where branches are expensive. +// +FunctionPass *createSpeculativeExecutionPass(); + +// Same as createSpeculativeExecutionPass, but does nothing unless +// TargetTransformInfo::hasBranchDivergence() is true. +FunctionPass *createSpeculativeExecutionIfHasBranchDivergencePass(); + +//===----------------------------------------------------------------------===// +// +// 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 *createRewriteStatepointsForGCLegacyPass(); + +//===----------------------------------------------------------------------===// +// +// Float2Int - Demote floats to ints where possible. +// +FunctionPass *createFloat2IntPass(); + +//===----------------------------------------------------------------------===// +// +// NaryReassociate - Simplify n-ary operations by reassociation. +// +FunctionPass *createNaryReassociatePass(); + +//===----------------------------------------------------------------------===// +// +// LoopDistribute - Distribute loops. +// +FunctionPass *createLoopDistributePass(); + +//===----------------------------------------------------------------------===// +// +// LoopFuse - Fuse loops. +// +FunctionPass *createLoopFusePass(); + +//===----------------------------------------------------------------------===// +// +// LoopLoadElimination - Perform loop-aware load elimination. +// +FunctionPass *createLoopLoadEliminationPass(); + +//===----------------------------------------------------------------------===// +// +// LoopVersioning - Perform loop multi-versioning. +// +FunctionPass *createLoopVersioningPass(); + +//===----------------------------------------------------------------------===// +// +// LoopDataPrefetch - Perform data prefetching in loops. +// +FunctionPass *createLoopDataPrefetchPass(); + +///===---------------------------------------------------------------------===// +ModulePass *createNameAnonGlobalPass(); +ModulePass *createCanonicalizeAliasesPass(); + +//===----------------------------------------------------------------------===// +// +// LibCallsShrinkWrap - Shrink-wraps a call to function if the result is not +// used. +// +FunctionPass *createLibCallsShrinkWrapPass(); + +//===----------------------------------------------------------------------===// +// +// LoopSimplifyCFG - This pass performs basic CFG simplification on loops, +// primarily to help other loop passes. +// +Pass *createLoopSimplifyCFGPass(); + +//===----------------------------------------------------------------------===// +// +// WarnMissedTransformations - This pass emits warnings for leftover forced +// transformations. +// +Pass *createWarnMissedTransformationsPass(); +} // End llvm namespace + +#endif |