mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-21 12:02:58 +02:00
44de88f9fc
llvm-svn: 323394
49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
//===- llvm/CodeGen/GlobalISel/CombinerInfo.h ------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
/// Interface for Targets to specify which operations are combined how and when.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CODEGEN_GLOBALISEL_COMBINER_INFO_H
|
|
#define LLVM_CODEGEN_GLOBALISEL_COMBINER_INFO_H
|
|
|
|
#include <cassert>
|
|
namespace llvm {
|
|
|
|
class LegalizerInfo;
|
|
class MachineInstr;
|
|
class MachineIRBuilder;
|
|
class MachineRegisterInfo;
|
|
// Contains information relevant to enabling/disabling various combines for a
|
|
// pass.
|
|
class CombinerInfo {
|
|
public:
|
|
CombinerInfo(bool AllowIllegalOps, bool ShouldLegalizeIllegal,
|
|
LegalizerInfo *LInfo)
|
|
: IllegalOpsAllowed(AllowIllegalOps),
|
|
LegalizeIllegalOps(ShouldLegalizeIllegal), LInfo(LInfo) {
|
|
assert(((AllowIllegalOps || !LegalizeIllegalOps) || LInfo) &&
|
|
"Expecting legalizerInfo when illegalops not allowed");
|
|
}
|
|
virtual ~CombinerInfo() = default;
|
|
/// If \p IllegalOpsAllowed is false, the CombinerHelper will make use of
|
|
/// the legalizerInfo to check for legality before each transformation.
|
|
bool IllegalOpsAllowed; // TODO: Make use of this.
|
|
|
|
/// If \p LegalizeIllegalOps is true, the Combiner will also legalize the
|
|
/// illegal ops that are created.
|
|
bool LegalizeIllegalOps; // TODO: Make use of this.
|
|
const LegalizerInfo *LInfo;
|
|
virtual bool combine(MachineInstr &MI, MachineIRBuilder &B) const = 0;
|
|
};
|
|
} // namespace llvm
|
|
|
|
#endif
|