#ifndef LLVM_CODEGEN_PASSES_H
#define LLVM_CODEGEN_PASSES_H
-#include <iosfwd>
+#include "llvm/Target/TargetMachine.h"
#include <string>
namespace llvm {
class FunctionPass;
+ class MachineFunctionPass;
class PassInfo;
- class TargetMachine;
+ class TargetLowering;
class RegisterCoalescer;
+ class raw_ostream;
/// createUnreachableBlockEliminationPass - The LLVM code generator does not
/// work well with unreachable basic blocks (what live ranges make sense for a
/// block that cannot be reached?). As such, a code generator should either
- /// not instruction select unreachable blocks, or it can run this pass as it's
+ /// not instruction select unreachable blocks, or run this pass as its
/// last LLVM modifying pass to clean up blocks that are not reachable from
/// the entry block.
FunctionPass *createUnreachableBlockEliminationPass();
/// MachineFunctionPrinter pass - This pass prints out the machine function to
- /// standard error, as a debugging tool.
- FunctionPass *createMachineFunctionPrinterPass(std::ostream *OS,
- const std::string &Banner ="");
+ /// the given stream as a debugging tool.
+ MachineFunctionPass *
+ createMachineFunctionPrinterPass(raw_ostream &OS,
+ const std::string &Banner ="");
/// MachineLoopInfo pass - This pass is a loop analysis pass.
- ///
- extern const PassInfo *const MachineLoopInfoID;
+ ///
+ extern char &MachineLoopInfoID;
+
+ /// MachineLoopRanges pass - This pass is an on-demand loop coverage
+ /// analysis pass.
+ ///
+ extern char &MachineLoopRangesID;
/// MachineDominators pass - This pass is a machine dominators analysis pass.
- ///
- extern const PassInfo *const MachineDominatorsID;
+ ///
+ extern char &MachineDominatorsID;
+
+ /// EdgeBundles analysis - Bundle machine CFG edges.
+ ///
+ extern char &EdgeBundlesID;
/// PHIElimination pass - This pass eliminates machine instruction PHI nodes
/// by inserting copy instructions. This destroys SSA information, but is the
/// desired input for some register allocators. This pass is "required" by
/// these register allocator like this: AU.addRequiredID(PHIEliminationID);
///
- extern const PassInfo *const PHIEliminationID;
-
+ extern char &PHIEliminationID;
+
/// StrongPHIElimination pass - This pass eliminates machine instruction PHI
/// nodes by inserting copy instructions. This destroys SSA information, but
/// is the desired input for some register allocators. This pass is
/// "required" by these register allocator like this:
/// AU.addRequiredID(PHIEliminationID);
/// This pass is still in development
- extern const PassInfo *const StrongPHIEliminationID;
+ extern char &StrongPHIEliminationID;
+
+ extern char &PreAllocSplittingID;
+
+ /// LiveStacks pass. An analysis keeping track of the liveness of stack slots.
+ extern char &LiveStacksID;
/// SimpleRegisterCoalescing pass. Aggressively coalesces every register
/// copy it can.
///
- extern const PassInfo *const SimpleRegisterCoalescingID;
+ extern char &SimpleRegisterCoalescingID;
/// TwoAddressInstruction pass - This pass reduces two-address instructions to
/// use two operands. This destroys SSA information but it is desired by
/// register allocators.
- extern const PassInfo *const TwoAddressInstructionPassID;
+ extern char &TwoAddressInstructionPassID;
+
+ /// SpillPlacement analysis. Suggest optimal placement of spill code between
+ /// basic blocks.
+ ///
+ extern char &SpillPlacementID;
/// UnreachableMachineBlockElimination pass - This pass removes unreachable
/// machine basic blocks.
- extern const PassInfo *const UnreachableMachineBlockElimID;
+ extern char &UnreachableMachineBlockElimID;
/// DeadMachineInstructionElim pass - This pass removes dead machine
/// instructions.
///
FunctionPass *createDeadMachineInstructionElimPass();
- /// Creates a register allocator as the user specified on the command line.
+ /// Creates a register allocator as the user specified on the command line, or
+ /// picks one that matches OptLevel.
///
- FunctionPass *createRegisterAllocator();
+ FunctionPass *createRegisterAllocator(CodeGenOpt::Level OptLevel);
- /// SimpleRegisterAllocation Pass - This pass converts the input machine code
- /// from SSA form to use explicit registers by spilling every register. Wow,
- /// great policy huh?
+ /// FastRegisterAllocation Pass - This pass register allocates as fast as
+ /// possible. It is best suited for debug code where live ranges are short.
///
- FunctionPass *createSimpleRegisterAllocator();
+ FunctionPass *createFastRegisterAllocator();
- /// LocalRegisterAllocation Pass - This pass register allocates the input code
- /// a basic block at a time, yielding code better than the simple register
- /// allocator, but not as good as a global allocator.
+ /// BasicRegisterAllocation Pass - This pass implements a degenerate global
+ /// register allocator using the basic regalloc framework.
///
- FunctionPass *createLocalRegisterAllocator();
+ FunctionPass *createBasicRegisterAllocator();
- /// BigBlockRegisterAllocation Pass - The BigBlock register allocator
- /// munches single basic blocks at a time, like the local register
- /// allocator. While the BigBlock allocator is a little slower, and uses
- /// somewhat more memory than the local register allocator, it tends to
- /// yield the best allocations (of any of the allocators) for blocks that
- /// have hundreds or thousands of instructions in sequence.
+ /// Greedy register allocation pass - This pass implements a global register
+ /// allocator for optimized builds.
///
- FunctionPass *createBigBlockRegisterAllocator();
+ FunctionPass *createGreedyRegisterAllocator();
/// LinearScanRegisterAllocation Pass - This pass implements the linear scan
/// register allocation algorithm, a global register allocator.
///
FunctionPass *createLinearScanRegisterAllocator();
+ /// PBQPRegisterAllocation Pass - This pass implements the Partitioned Boolean
+ /// Quadratic Prograaming (PBQP) based register allocator.
+ ///
+ FunctionPass *createDefaultPBQPRegisterAllocator();
+
/// SimpleRegisterCoalescing Pass - Coalesce all copies possible. Can run
/// independently of the register allocator.
///
/// and eliminates abstract frame references.
///
FunctionPass *createPrologEpilogCodeInserter();
-
+
/// LowerSubregs Pass - This pass lowers subregs to register-register copies
/// which yields suboptimal, but correct code if the register allocator
/// cannot coalesce all subreg operations during allocation.
///
FunctionPass *createLowerSubregsPass();
- /// createPostRAScheduler - under development.
- FunctionPass *createPostRAScheduler();
+ /// createPostRAScheduler - This pass performs post register allocation
+ /// scheduling.
+ FunctionPass *createPostRAScheduler(CodeGenOpt::Level OptLevel);
/// BranchFolding Pass - This pass performs machine code CFG based
/// optimizations to delete branches to branches, eliminate branches to
/// branches.
FunctionPass *createBranchFoldingPass(bool DefaultEnableTailMerge);
+ /// TailDuplicate Pass - Duplicate blocks with unconditional branches
+ /// into tails of their predecessors.
+ FunctionPass *createTailDuplicatePass(bool PreRegAlloc = false);
+
/// IfConverter Pass - This pass performs machine code if conversion.
FunctionPass *createIfConverterPass();
- /// LoopAligner Pass - This pass aligns loop headers to target specific
- /// alignment boundary.
- FunctionPass *createLoopAlignerPass();
-
- /// DebugLabelFoldingPass - This pass prunes out redundant debug labels. This
- /// allows a debug emitter to determine if the range of two labels is empty,
- /// by seeing if the labels map to the same reduced label.
- FunctionPass *createDebugLabelFoldingPass();
-
- /// MachineCodeDeletion Pass - This pass deletes all of the machine code for
- /// the current function, which should happen after the function has been
- /// emitted to a .s file or to memory.
- FunctionPass *createMachineCodeDeleter();
-
- /// getRegisterAllocator - This creates an instance of the register allocator
- /// for the Sparc.
- FunctionPass *getRegisterAllocator(TargetMachine &T);
+ /// Code Placement Pass - This pass optimize code placement and aligns loop
+ /// headers to target specific alignment boundary.
+ FunctionPass *createCodePlacementOptPass();
/// IntrinsicLowering Pass - Performs target-independent LLVM IR
/// transformations for highly portable strategies.
FunctionPass *createGCLoweringPass();
-
+
/// MachineCodeAnalysis Pass - Target-independent pass to mark safe points in
/// machine code. Must be added very late during code generation, just prior
/// to output, and importantly after all CFG transformations (such as branch
/// folding).
FunctionPass *createGCMachineCodeAnalysisPass();
-
+
/// Deleter Pass - Releases GC metadata.
- ///
+ ///
FunctionPass *createGCInfoDeleter();
-
+
/// Creates a pass to print GC metadata.
- ///
- FunctionPass *createGCInfoPrinter(std::ostream &OS);
-
+ ///
+ FunctionPass *createGCInfoPrinter(raw_ostream &OS);
+
+ /// createMachineCSEPass - This pass performs global CSE on machine
+ /// instructions.
+ FunctionPass *createMachineCSEPass();
+
/// createMachineLICMPass - This pass performs LICM on machine instructions.
- ///
- FunctionPass *createMachineLICMPass();
+ ///
+ FunctionPass *createMachineLICMPass(bool PreRegAlloc = true);
/// createMachineSinkingPass - This pass performs sinking on machine
/// instructions.
FunctionPass *createMachineSinkingPass();
+ /// createPeepholeOptimizerPass - This pass performs peephole optimizations -
+ /// like extension and comparison eliminations.
+ FunctionPass *createPeepholeOptimizerPass();
+
+ /// createOptimizePHIsPass - This pass optimizes machine instruction PHIs
+ /// to take advantage of opportunities created during DAG legalization.
+ FunctionPass *createOptimizePHIsPass();
+
/// createStackSlotColoringPass - This pass performs stack slot coloring.
- FunctionPass *createStackSlotColoringPass();
-
+ FunctionPass *createStackSlotColoringPass(bool);
+
+ /// createStackProtectorPass - This pass adds stack protectors to functions.
+ FunctionPass *createStackProtectorPass(const TargetLowering *tli);
+
+ /// createMachineVerifierPass - This pass verifies cenerated machine code
+ /// instructions for correctness.
+ FunctionPass *createMachineVerifierPass(const char *Banner = 0);
+
+ /// createDwarfEHPass - This pass mulches exception handling code into a form
+ /// adapted to code generation. Required if using dwarf exception handling.
+ FunctionPass *createDwarfEHPass(const TargetMachine *tm);
+
+ /// createSjLjEHPass - This pass adapts exception handling code to use
+ /// the GCC-style builtin setjmp/longjmp (sjlj) to handling EH control flow.
+ FunctionPass *createSjLjEHPass(const TargetLowering *tli);
+
+ /// createLocalStackSlotAllocationPass - This pass assigns local frame
+ /// indices to stack slots relative to one another and allocates
+ /// base registers to access them when it is estimated by the target to
+ /// be out of range of normal frame pointer or stack pointer index
+ /// addressing.
+ FunctionPass *createLocalStackSlotAllocationPass();
+
+ /// createExpandISelPseudosPass - This pass expands pseudo-instructions.
+ ///
+ FunctionPass *createExpandISelPseudosPass();
+
} // End llvm namespace
#endif
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