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This also enables domain swizzling for AVX code which required a few trivial test changes. The pass will be moved to lib/CodeGen shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140659 91177308-0d34-0410-b5e6-96231b3b80d8
240 lines
9.1 KiB
C++
240 lines
9.1 KiB
C++
//===-- Passes.h - Target independent code generation passes ----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines interfaces to access the target independent code generation
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// passes provided by the LLVM backend.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_PASSES_H
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#define LLVM_CODEGEN_PASSES_H
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#include "llvm/Target/TargetMachine.h"
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#include <string>
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namespace llvm {
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class FunctionPass;
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class MachineFunctionPass;
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class PassInfo;
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class TargetLowering;
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class TargetRegisterClass;
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class raw_ostream;
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/// createUnreachableBlockEliminationPass - The LLVM code generator does not
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/// work well with unreachable basic blocks (what live ranges make sense for a
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/// block that cannot be reached?). As such, a code generator should either
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/// not instruction select unreachable blocks, or run this pass as its
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/// last LLVM modifying pass to clean up blocks that are not reachable from
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/// the entry block.
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FunctionPass *createUnreachableBlockEliminationPass();
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/// MachineFunctionPrinter pass - This pass prints out the machine function to
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/// the given stream as a debugging tool.
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MachineFunctionPass *
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createMachineFunctionPrinterPass(raw_ostream &OS,
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const std::string &Banner ="");
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/// MachineLoopInfo pass - This pass is a loop analysis pass.
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///
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extern char &MachineLoopInfoID;
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/// MachineLoopRanges pass - This pass is an on-demand loop coverage
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/// analysis pass.
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///
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extern char &MachineLoopRangesID;
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/// MachineDominators pass - This pass is a machine dominators analysis pass.
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///
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extern char &MachineDominatorsID;
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/// EdgeBundles analysis - Bundle machine CFG edges.
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///
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extern char &EdgeBundlesID;
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/// PHIElimination pass - This pass eliminates machine instruction PHI nodes
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/// by inserting copy instructions. This destroys SSA information, but is the
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/// desired input for some register allocators. This pass is "required" by
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/// these register allocator like this: AU.addRequiredID(PHIEliminationID);
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///
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extern char &PHIEliminationID;
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/// StrongPHIElimination pass - This pass eliminates machine instruction PHI
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/// nodes by inserting copy instructions. This destroys SSA information, but
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/// is the desired input for some register allocators. This pass is
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/// "required" by these register allocator like this:
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/// AU.addRequiredID(PHIEliminationID);
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/// This pass is still in development
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extern char &StrongPHIEliminationID;
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/// LiveStacks pass. An analysis keeping track of the liveness of stack slots.
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extern char &LiveStacksID;
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/// TwoAddressInstruction pass - This pass reduces two-address instructions to
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/// use two operands. This destroys SSA information but it is desired by
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/// register allocators.
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extern char &TwoAddressInstructionPassID;
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/// RegisteCoalescer pass - This pass merges live ranges to eliminate copies.
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extern char &RegisterCoalescerPassID;
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/// SpillPlacement analysis. Suggest optimal placement of spill code between
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/// basic blocks.
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///
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extern char &SpillPlacementID;
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/// UnreachableMachineBlockElimination pass - This pass removes unreachable
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/// machine basic blocks.
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extern char &UnreachableMachineBlockElimID;
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/// DeadMachineInstructionElim pass - This pass removes dead machine
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/// instructions.
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///
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FunctionPass *createDeadMachineInstructionElimPass();
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/// Creates a register allocator as the user specified on the command line, or
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/// picks one that matches OptLevel.
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///
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FunctionPass *createRegisterAllocator(CodeGenOpt::Level OptLevel);
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/// FastRegisterAllocation Pass - This pass register allocates as fast as
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/// possible. It is best suited for debug code where live ranges are short.
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///
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FunctionPass *createFastRegisterAllocator();
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/// BasicRegisterAllocation Pass - This pass implements a degenerate global
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/// register allocator using the basic regalloc framework.
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///
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FunctionPass *createBasicRegisterAllocator();
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/// Greedy register allocation pass - This pass implements a global register
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/// allocator for optimized builds.
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///
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FunctionPass *createGreedyRegisterAllocator();
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/// LinearScanRegisterAllocation Pass - This pass implements the linear scan
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/// register allocation algorithm, a global register allocator.
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///
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FunctionPass *createLinearScanRegisterAllocator();
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/// PBQPRegisterAllocation Pass - This pass implements the Partitioned Boolean
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/// Quadratic Prograaming (PBQP) based register allocator.
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///
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FunctionPass *createDefaultPBQPRegisterAllocator();
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/// PrologEpilogCodeInserter Pass - This pass inserts prolog and epilog code,
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/// and eliminates abstract frame references.
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///
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FunctionPass *createPrologEpilogCodeInserter();
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/// ExpandPostRAPseudos Pass - This pass expands pseudo instructions after
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/// register allocation.
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///
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FunctionPass *createExpandPostRAPseudosPass();
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/// createPostRAScheduler - This pass performs post register allocation
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/// scheduling.
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FunctionPass *createPostRAScheduler(CodeGenOpt::Level OptLevel);
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/// BranchFolding Pass - This pass performs machine code CFG based
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/// optimizations to delete branches to branches, eliminate branches to
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/// successor blocks (creating fall throughs), and eliminating branches over
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/// branches.
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FunctionPass *createBranchFoldingPass(bool DefaultEnableTailMerge);
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/// TailDuplicate Pass - Duplicate blocks with unconditional branches
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/// into tails of their predecessors.
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FunctionPass *createTailDuplicatePass(bool PreRegAlloc = false);
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/// IfConverter Pass - This pass performs machine code if conversion.
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FunctionPass *createIfConverterPass();
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/// Code Placement Pass - This pass optimize code placement and aligns loop
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/// headers to target specific alignment boundary.
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FunctionPass *createCodePlacementOptPass();
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/// IntrinsicLowering Pass - Performs target-independent LLVM IR
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/// transformations for highly portable strategies.
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FunctionPass *createGCLoweringPass();
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/// MachineCodeAnalysis Pass - Target-independent pass to mark safe points in
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/// machine code. Must be added very late during code generation, just prior
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/// to output, and importantly after all CFG transformations (such as branch
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/// folding).
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FunctionPass *createGCMachineCodeAnalysisPass();
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/// Deleter Pass - Releases GC metadata.
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///
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FunctionPass *createGCInfoDeleter();
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/// Creates a pass to print GC metadata.
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///
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FunctionPass *createGCInfoPrinter(raw_ostream &OS);
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/// createMachineCSEPass - This pass performs global CSE on machine
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/// instructions.
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FunctionPass *createMachineCSEPass();
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/// createMachineLICMPass - This pass performs LICM on machine instructions.
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///
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FunctionPass *createMachineLICMPass(bool PreRegAlloc = true);
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/// createMachineSinkingPass - This pass performs sinking on machine
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/// instructions.
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FunctionPass *createMachineSinkingPass();
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/// createPeepholeOptimizerPass - This pass performs peephole optimizations -
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/// like extension and comparison eliminations.
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FunctionPass *createPeepholeOptimizerPass();
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/// createOptimizePHIsPass - This pass optimizes machine instruction PHIs
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/// to take advantage of opportunities created during DAG legalization.
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FunctionPass *createOptimizePHIsPass();
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/// createStackSlotColoringPass - This pass performs stack slot coloring.
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FunctionPass *createStackSlotColoringPass(bool);
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/// createStackProtectorPass - This pass adds stack protectors to functions.
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FunctionPass *createStackProtectorPass(const TargetLowering *tli);
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/// createMachineVerifierPass - This pass verifies cenerated machine code
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/// instructions for correctness.
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FunctionPass *createMachineVerifierPass(const char *Banner = 0);
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/// createDwarfEHPass - This pass mulches exception handling code into a form
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/// adapted to code generation. Required if using dwarf exception handling.
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FunctionPass *createDwarfEHPass(const TargetMachine *tm);
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/// createSjLjEHPass - This pass adapts exception handling code to use
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/// the GCC-style builtin setjmp/longjmp (sjlj) to handling EH control flow.
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FunctionPass *createSjLjEHPass(const TargetLowering *tli);
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/// createLocalStackSlotAllocationPass - This pass assigns local frame
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/// indices to stack slots relative to one another and allocates
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/// base registers to access them when it is estimated by the target to
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/// be out of range of normal frame pointer or stack pointer index
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/// addressing.
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FunctionPass *createLocalStackSlotAllocationPass();
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/// createExpandISelPseudosPass - This pass expands pseudo-instructions.
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///
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FunctionPass *createExpandISelPseudosPass();
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/// createExecutionDependencyFixPass - This pass fixes execution time
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/// problems with dependent instructions, such as switching execution
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/// domains to match.
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///
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/// The pass will examine instructions using and defining registers in RC.
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///
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FunctionPass *createExecutionDependencyFixPass(const TargetRegisterClass *RC);
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} // End llvm namespace
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#endif
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