namespace llvm {
class FunctionPass;
+ class MachineFunctionPass;
class PassInfo;
class TargetLowering;
class RegisterCoalescer;
/// 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
- /// the given stream, as a debugging tool.
- FunctionPass *createMachineFunctionPrinterPass(raw_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;
/// MachineDominators pass - This pass is a machine dominators analysis pass.
- ///
- extern const PassInfo *const MachineDominatorsID;
+ ///
+ extern char &MachineDominatorsID;
/// 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 const PassInfo *const PreAllocSplittingID;
+ extern char &PreAllocSplittingID;
/// 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;
/// 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);
- /// 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.
+ /// FastRegisterAllocation Pass - This pass register allocates as fast as
+ /// possible. It is best suited for debug code where live ranges are short.
///
- FunctionPass *createLocalRegisterAllocator();
+ FunctionPass *createFastRegisterAllocator();
/// LinearScanRegisterAllocation Pass - This pass implements the linear scan
/// register allocation algorithm, a global 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.
/// 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();
/// headers to target specific alignment boundary.
FunctionPass *createCodePlacementOptPass();
- /// 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();
-
- /// getRegisterAllocator - This creates an instance of the register allocator
- /// for the Sparc.
- FunctionPass *getRegisterAllocator(TargetMachine &T);
-
/// 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(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(bool);
/// createMachineVerifierPass - This pass verifies cenerated machine code
/// instructions for correctness.
- ///
- /// @param allowPhysDoubleDefs ignore double definitions of
- /// registers. Useful before LiveVariables has run.
- FunctionPass *createMachineVerifierPass(bool allowDoubleDefs);
+ FunctionPass *createMachineVerifierPass();
/// createDwarfEHPass - This pass mulches exception handling code into a form
/// adapted to code generation. Required if using dwarf exception handling.
- FunctionPass *createDwarfEHPass(const TargetLowering *tli, bool fast);
+ 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();
+
} // End llvm namespace
#endif
projects / oota-llvm.git / blobdiff