llvm-6502/include/llvm/CodeGen/SchedulerRegistry.h
Bill Wendling 187361b056 Remove the '-disable-scheduling' flag and replace it with the 'source' option of
the '-pre-RA-sched' flag. It actually makes more sense to do it this way. Also,
keep track of the SDNode ordering by default. Eventually, we would like to make
this ordering a way to break a "tie" in the scheduler. However, doing that now
breaks the "CodeGen/X86/abi-isel.ll" test for 32-bit Linux.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94308 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23 10:26:57 +00:00

99 lines
3.5 KiB
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//===-- llvm/CodeGen/SchedulerRegistry.h ------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the implementation for instruction scheduler function
// pass registry (RegisterScheduler).
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGENSCHEDULERREGISTRY_H
#define LLVM_CODEGENSCHEDULERREGISTRY_H
#include "llvm/CodeGen/MachinePassRegistry.h"
#include "llvm/Target/TargetMachine.h"
namespace llvm {
//===----------------------------------------------------------------------===//
///
/// RegisterScheduler class - Track the registration of instruction schedulers.
///
//===----------------------------------------------------------------------===//
class SelectionDAGISel;
class ScheduleDAGSDNodes;
class SelectionDAG;
class MachineBasicBlock;
class RegisterScheduler : public MachinePassRegistryNode {
public:
typedef ScheduleDAGSDNodes *(*FunctionPassCtor)(SelectionDAGISel*,
CodeGenOpt::Level);
static MachinePassRegistry Registry;
RegisterScheduler(const char *N, const char *D, FunctionPassCtor C)
: MachinePassRegistryNode(N, D, (MachinePassCtor)C)
{ Registry.Add(this); }
~RegisterScheduler() { Registry.Remove(this); }
// Accessors.
//
RegisterScheduler *getNext() const {
return (RegisterScheduler *)MachinePassRegistryNode::getNext();
}
static RegisterScheduler *getList() {
return (RegisterScheduler *)Registry.getList();
}
static FunctionPassCtor getDefault() {
return (FunctionPassCtor)Registry.getDefault();
}
static void setDefault(FunctionPassCtor C) {
Registry.setDefault((MachinePassCtor)C);
}
static void setListener(MachinePassRegistryListener *L) {
Registry.setListener(L);
}
};
/// createBURRListDAGScheduler - This creates a bottom up register usage
/// reduction list scheduler.
ScheduleDAGSDNodes *createBURRListDAGScheduler(SelectionDAGISel *IS,
CodeGenOpt::Level OptLevel);
/// createTDRRListDAGScheduler - This creates a top down register usage
/// reduction list scheduler.
ScheduleDAGSDNodes *createTDRRListDAGScheduler(SelectionDAGISel *IS,
CodeGenOpt::Level OptLevel);
/// createBURRListDAGScheduler - This creates a bottom up register usage
/// reduction list scheduler that schedules in source code order when possible.
ScheduleDAGSDNodes *createSourceListDAGScheduler(SelectionDAGISel *IS,
CodeGenOpt::Level OptLevel);
/// createTDListDAGScheduler - This creates a top-down list scheduler with
/// a hazard recognizer.
ScheduleDAGSDNodes *createTDListDAGScheduler(SelectionDAGISel *IS,
CodeGenOpt::Level OptLevel);
/// createFastDAGScheduler - This creates a "fast" scheduler.
///
ScheduleDAGSDNodes *createFastDAGScheduler(SelectionDAGISel *IS,
CodeGenOpt::Level OptLevel);
/// createDefaultScheduler - This creates an instruction scheduler appropriate
/// for the target.
ScheduleDAGSDNodes *createDefaultScheduler(SelectionDAGISel *IS,
CodeGenOpt::Level OptLevel);
} // end namespace llvm
#endif