//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#ifndef LLVM_TRANSFORMS_SCALAR_H
#define LLVM_TRANSFORMS_SCALAR_H
-#include <cstdlib>
-
namespace llvm {
class FunctionPass;
-class LoopPass;
class Pass;
class GetElementPtrInst;
class PassInfo;
//===----------------------------------------------------------------------===//
//
-// ScalarReplAggregates - Break up alloca's of aggregates into multiple allocas
-// if possible.
+// SROA - Replace aggregates or pieces of aggregates with scalar SSA values.
//
-FunctionPass *createScalarReplAggregatesPass();
+FunctionPass *createSROAPass(bool RequiresDomTree = true);
//===----------------------------------------------------------------------===//
//
-// GCSE - This pass is designed to be a very quick global transformation that
-// eliminates global common subexpressions from a function. It does this by
-// examining the SSA value graph of the function, instead of doing slow
-// bit-vector computations.
+// ScalarReplAggregates - Break up alloca's of aggregates into multiple allocas
+// if possible.
//
-FunctionPass *createGCSEPass();
+FunctionPass *createScalarReplAggregatesPass(signed Threshold = -1,
+ bool UseDomTree = true,
+ signed StructMemberThreshold = -1,
+ signed ArrayElementThreshold = -1,
+ signed ScalarLoadThreshold = -1);
//===----------------------------------------------------------------------===//
//
// InductionVariableSimplify - Transform induction variables in a program to all
// use a single canonical induction variable per loop.
//
-LoopPass *createIndVarSimplifyPass();
+Pass *createIndVarSimplifyPass();
//===----------------------------------------------------------------------===//
//
//
// LICM - This pass is a loop invariant code motion and memory promotion pass.
//
-LoopPass *createLICMPass();
+Pass *createLICMPass();
//===----------------------------------------------------------------------===//
//
// 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.
//
-LoopPass *createLoopStrengthReducePass(const TargetLowering *TLI = NULL);
+Pass *createLoopStrengthReducePass();
+
+Pass *createGlobalMergePass(const TargetLowering *TLI = 0);
//===----------------------------------------------------------------------===//
//
// LoopUnswitch - This pass is a simple loop unswitching pass.
//
-LoopPass *createLoopUnswitchPass();
+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.
//
-LoopPass *createLoopUnrollPass();
+Pass *createLoopUnrollPass(int Threshold = -1, int Count = -1, int AllowPartial = -1);
+//===----------------------------------------------------------------------===//
+//
+// LoopRotate - This pass is a simple loop rotating pass.
+//
+Pass *createLoopRotatePass();
+
+//===----------------------------------------------------------------------===//
+//
+// LoopIdiom - This pass recognizes and replaces idioms in loops.
+//
+Pass *createLoopIdiomPass();
+
//===----------------------------------------------------------------------===//
//
// PromoteMemoryToRegister - This pass is used to promote memory references to
// this pass is:
//
// FROM CODE TO CODE
-// %X = alloca int, uint 1 ret int 42
-// store int 42, int *%X
-// %Y = load int* %X
-// ret int %Y
+// %X = alloca i32, i32 1 ret i32 42
+// store i32 42, i32 *%X
+// %Y = load i32* %X
+// ret i32 %Y
//
FunctionPass *createPromoteMemoryToRegisterPass();
-extern const PassInfo *PromoteMemoryToRegisterID;
//===----------------------------------------------------------------------===//
//
// hacking easier.
//
FunctionPass *createDemoteRegisterToMemoryPass();
-extern const PassInfo *DemoteRegisterToMemoryID;
+extern char &DemoteRegisterToMemoryID;
//===----------------------------------------------------------------------===//
//
//===----------------------------------------------------------------------===//
//
-// CorrelatedExpressionElimination - This pass eliminates correlated
-// conditions, such as these:
-// if (X == 0)
-// if (X > 2) ; // Known false
-// else
-// Y = X * Z; // = 0
-//
-FunctionPass *createCorrelatedExpressionEliminationPass();
-
-//===----------------------------------------------------------------------===//
-//
-// CondPropagationPass - This pass propagates information about conditional
-// expressions through the program, allowing it to eliminate conditional
-// branches in some cases.
+// JumpThreading - Thread control through mult-pred/multi-succ blocks where some
+// preds always go to some succ.
//
-FunctionPass *createCondPropagationPass();
-
-//===----------------------------------------------------------------------===//
-//
-// TailDuplication - Eliminate unconditional branches through controlled code
-// duplication, creating simpler CFG structures.
-//
-FunctionPass *createTailDuplicationPass();
-
+FunctionPass *createJumpThreadingPass();
+
//===----------------------------------------------------------------------===//
//
// CFGSimplification - Merge basic blocks, eliminate unreachable blocks,
// (set, immediate dominators, tree, and frontier) information.
//
FunctionPass *createBreakCriticalEdgesPass();
-extern const PassInfo *BreakCriticalEdgesID;
+extern char &BreakCriticalEdgesID;
//===----------------------------------------------------------------------===//
//
//
// AU.addRequiredID(LoopSimplifyID);
//
-FunctionPass *createLoopSimplifyPass();
-extern const PassInfo *LoopSimplifyID;
-
-//===----------------------------------------------------------------------===//
-//
-// LowerSelect - This pass converts SelectInst instructions into conditional
-// branch and PHI instructions. If the OnlyFP flag is set to true, then only
-// floating point select instructions are lowered.
-//
-FunctionPass *createLowerSelectPass(bool OnlyFP = false);
-extern const PassInfo *LowerSelectID;
-
-//===----------------------------------------------------------------------===//
-//
-// LowerAllocations - Turn malloc and free instructions into %malloc and %free
-// calls.
-//
-// AU.addRequiredID(LowerAllocationsID);
-//
-Pass *createLowerAllocationsPass(bool LowerMallocArgToInteger = false);
-extern const PassInfo *LowerAllocationsID;
+Pass *createLoopSimplifyPass();
+extern char &LoopSimplifyID;
//===----------------------------------------------------------------------===//
//
// chained binary branch instructions.
//
FunctionPass *createLowerSwitchPass();
-extern const PassInfo *LowerSwitchID;
-
-//===----------------------------------------------------------------------===//
-//
-// LowerPacked - This pass converts VectorType operations into low-level scalar
-// operations.
-//
-FunctionPass *createLowerPackedPass();
+extern char &LowerSwitchID;
//===----------------------------------------------------------------------===//
//
// purpose "my LLVM-to-LLVM pass doesn't support the invoke instruction yet"
// lowering pass.
//
-FunctionPass *createLowerInvokePass(const TargetLowering *TLI = NULL);
-extern const PassInfo *LowerInvokePassID;
-
-//===----------------------------------------------------------------------===//
-//
-// LowerGCPass - This function returns an instance of the "lowergc" pass, which
-// lowers garbage collection intrinsics to normal LLVM code.
-//
-FunctionPass *createLowerGCPass();
+FunctionPass *createLowerInvokePass(const TargetLowering *TLI = 0);
+FunctionPass *createLowerInvokePass(const TargetLowering *TLI,
+ bool useExpensiveEHSupport);
+extern char &LowerInvokePassID;
//===----------------------------------------------------------------------===//
//
// LCSSA - This pass inserts phi nodes at loop boundaries to simplify other loop
// optimizations.
//
-FunctionPass *createLCSSAPass();
-extern const PassInfo *LCSSAID;
+Pass *createLCSSAPass();
+extern char &LCSSAID;
+
+//===----------------------------------------------------------------------===//
+//
+// EarlyCSE - This pass performs a simple and fast CSE pass over the dominator
+// tree.
+//
+FunctionPass *createEarlyCSEPass();
+
+//===----------------------------------------------------------------------===//
+//
+// GVN - This pass performs global value numbering and redundant load
+// elimination cotemporaneously.
+//
+FunctionPass *createGVNPass(bool NoLoads = false);
+
+//===----------------------------------------------------------------------===//
+//
+// 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();
+
+//===----------------------------------------------------------------------===//
+//
+/// createSimplifyLibCallsPass - This pass optimizes specific calls to
+/// specific well-known (library) functions.
+FunctionPass *createSimplifyLibCallsPass();
+
+//===----------------------------------------------------------------------===//
+//
+// CodeGenPrepare - This pass prepares a function for instruction selection.
+//
+FunctionPass *createCodeGenPreparePass(const TargetLowering *TLI = 0);
//===----------------------------------------------------------------------===//
//
-// PredicateSimplifier - This pass collapses duplicate variables into one
-// canonical form, and tries to simplify expressions along the way.
+// InstructionNamer - Give any unnamed non-void instructions "tmp" names.
+//
+FunctionPass *createInstructionNamerPass();
+extern char &InstructionNamerID;
+
+//===----------------------------------------------------------------------===//
+//
+// Sink - Code Sinking
+//
+FunctionPass *createSinkingPass();
+
+//===----------------------------------------------------------------------===//
+//
+// LowerAtomic - Lower atomic intrinsics to non-atomic form
+//
+Pass *createLowerAtomicPass();
+
+//===----------------------------------------------------------------------===//
//
-FunctionPass *createPredicateSimplifierPass();
+// ValuePropagation - Propagate CFG-derived value information
+//
+Pass *createCorrelatedValuePropagationPass();
+
+//===----------------------------------------------------------------------===//
+//
+// InstructionSimplifier - Remove redundant instructions.
+//
+FunctionPass *createInstructionSimplifierPass();
+extern char &InstructionSimplifierID;
+
+
+//===----------------------------------------------------------------------===//
+//
+// LowerExpectIntriniscs - Removes llvm.expect intrinsics and creates
+// "block_weights" metadata.
+FunctionPass *createLowerExpectIntrinsicPass();
+
} // End llvm namespace
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