-//===-- Passes.h - Target independant code generation passes ----*- C++ -*-===//
+//===-- Passes.h - Target independent code generation passes ----*- C++ -*-===//
//
-// This file defines interfaces to access the target independant code generation
+// 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 defines interfaces to access the target independent code generation
// passes provided by the LLVM backend.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_PASSES_H
#define LLVM_CODEGEN_PASSES_H
-class FunctionPass;
-class PassInfo;
+#include <iosfwd>
+#include <string>
-// 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 *PHIEliminationID;
-
-/// SimpleRegisterAllocation Pass - This pass converts the input machine code
-/// from SSA form to use explicit registers by spilling every register. Wow,
-/// great policy huh?
-///
-FunctionPass *createSimpleRegisterAllocator();
-
-/// 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.
-///
-FunctionPass *createLocalRegisterAllocator();
-
-/// PrologEpilogCodeInserter Pass - This pass inserts prolog and epilog code,
-/// and eliminates abstract frame references.
-///
-FunctionPass *createPrologEpilogCodeInserter();
+namespace llvm {
+
+ class FunctionPass;
+ class PassInfo;
+ class TargetMachine;
+
+ /// 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
+ /// 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 ="");
+
+ /// 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 *PHIEliminationID;
+
+ /// 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 *TwoAddressInstructionPassID;
+
+ /// Creates a register allocator as the user specified on the command line.
+ ///
+ FunctionPass *createRegisterAllocator();
+
+ /// SimpleRegisterAllocation Pass - This pass converts the input machine code
+ /// from SSA form to use explicit registers by spilling every register. Wow,
+ /// great policy huh?
+ ///
+ FunctionPass *createSimpleRegisterAllocator();
+
+ /// 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.
+ ///
+ FunctionPass *createLocalRegisterAllocator();
+
+ /// LinearScanRegisterAllocation Pass - This pass implements the linear scan
+ /// register allocation algorithm, a global register allocator.
+ ///
+ FunctionPass *createLinearScanRegisterAllocator();
+
+ /// PriorityBasedGraphColoringRegisterAllocator Pass - This pass implements
+ /// the priority-based graph coloring register allocator by Chow & Hennessey,
+ /// a global register allocator.
+ FunctionPass *createGraphColoringRegisterAllocator();
+
+ /// PrologEpilogCodeInserter Pass - This pass inserts prolog and epilog code,
+ /// and eliminates abstract frame references.
+ ///
+ FunctionPass *createPrologEpilogCodeInserter();
+
+ /// BranchFolding Pass - This pass performs machine code CFG based
+ /// optimizations to delete branches to branches, eliminate branches to
+ /// successor blocks (creating fall throughs), and eliminating branches over
+ /// branches.
+ FunctionPass *createBranchFoldingPass();
+
+ /// 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);
+
+ //createModuloSchedulingPass - Creates the Swing Modulo Scheduling Pass
+ FunctionPass *createModuloSchedulingPass(TargetMachine & targ);
+
+ //createModuloSchedulingPass - Creates the Swing Modulo Scheduling Pass
+ FunctionPass *createModuloSchedulingSBPass(TargetMachine & targ);
+
+} // End llvm namespace
#endif
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