//===-- Passes.h - Target independent code generation passes ----*- C++ -*-===//
-//
+//
// 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
#ifndef LLVM_CODEGEN_PASSES_H
#define LLVM_CODEGEN_PASSES_H
-#include <iostream>
+#include <iosfwd>
+#include <string>
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 = &std::cerr,
+ FunctionPass *createMachineFunctionPrinterPass(std::ostream *OS,
const std::string &Banner ="");
/// PHIElimination pass - This pass eliminates machine instruction PHI nodes
/// 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 *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();
+
/// 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