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diff --git a/linux-x64/clang/include/llvm/CodeGen/SelectionDAGTargetInfo.h b/linux-x64/clang/include/llvm/CodeGen/SelectionDAGTargetInfo.h
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+//==- llvm/CodeGen/SelectionDAGTargetInfo.h - SelectionDAG Info --*- C++ -*-==//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the SelectionDAGTargetInfo class, which targets can
+// subclass to parameterize the SelectionDAG lowering and instruction
+// selection process.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_SELECTIONDAGTARGETINFO_H
+#define LLVM_CODEGEN_SELECTIONDAGTARGETINFO_H
+
+#include "llvm/CodeGen/MachineMemOperand.h"
+#include "llvm/CodeGen/SelectionDAGNodes.h"
+#include "llvm/Support/CodeGen.h"
+#include <utility>
+
+namespace llvm {
+
+class SelectionDAG;
+
+//===----------------------------------------------------------------------===//
+/// Targets can subclass this to parameterize the
+/// SelectionDAG lowering and instruction selection process.
+///
+class SelectionDAGTargetInfo {
+public:
+ explicit SelectionDAGTargetInfo() = default;
+ SelectionDAGTargetInfo(const SelectionDAGTargetInfo &) = delete;
+ SelectionDAGTargetInfo &operator=(const SelectionDAGTargetInfo &) = delete;
+ virtual ~SelectionDAGTargetInfo();
+
+ /// Emit target-specific code that performs a memcpy.
+ /// This can be used by targets to provide code sequences for cases
+ /// that don't fit the target's parameters for simple loads/stores and can be
+ /// more efficient than using a library call. This function can return a null
+ /// SDValue if the target declines to use custom code and a different
+ /// lowering strategy should be used.
+ ///
+ /// If AlwaysInline is true, the size is constant and the target should not
+ /// emit any calls and is strongly encouraged to attempt to emit inline code
+ /// even if it is beyond the usual threshold because this intrinsic is being
+ /// expanded in a place where calls are not feasible (e.g. within the prologue
+ /// for another call). If the target chooses to decline an AlwaysInline
+ /// request here, legalize will resort to using simple loads and stores.
+ virtual SDValue EmitTargetCodeForMemcpy(SelectionDAG &DAG, const SDLoc &dl,
+ SDValue Chain, SDValue Op1,
+ SDValue Op2, SDValue Op3,
+ unsigned Align, bool isVolatile,
+ bool AlwaysInline,
+ MachinePointerInfo DstPtrInfo,
+ MachinePointerInfo SrcPtrInfo) const {
+ return SDValue();
+ }
+
+ /// Emit target-specific code that performs a memmove.
+ /// This can be used by targets to provide code sequences for cases
+ /// that don't fit the target's parameters for simple loads/stores and can be
+ /// more efficient than using a library call. This function can return a null
+ /// SDValue if the target declines to use custom code and a different
+ /// lowering strategy should be used.
+ virtual SDValue EmitTargetCodeForMemmove(
+ SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Op1,
+ SDValue Op2, SDValue Op3, unsigned Align, bool isVolatile,
+ MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const {
+ return SDValue();
+ }
+
+ /// Emit target-specific code that performs a memset.
+ /// This can be used by targets to provide code sequences for cases
+ /// that don't fit the target's parameters for simple stores and can be more
+ /// efficient than using a library call. This function can return a null
+ /// SDValue if the target declines to use custom code and a different
+ /// lowering strategy should be used.
+ virtual SDValue EmitTargetCodeForMemset(SelectionDAG &DAG, const SDLoc &dl,
+ SDValue Chain, SDValue Op1,
+ SDValue Op2, SDValue Op3,
+ unsigned Align, bool isVolatile,
+ MachinePointerInfo DstPtrInfo) const {
+ return SDValue();
+ }
+
+ /// Emit target-specific code that performs a memcmp, in cases where that is
+ /// faster than a libcall. The first returned SDValue is the result of the
+ /// memcmp and the second is the chain. Both SDValues can be null if a normal
+ /// libcall should be used.
+ virtual std::pair<SDValue, SDValue>
+ EmitTargetCodeForMemcmp(SelectionDAG &DAG, const SDLoc &dl, SDValue Chain,
+ SDValue Op1, SDValue Op2, SDValue Op3,
+ MachinePointerInfo Op1PtrInfo,
+ MachinePointerInfo Op2PtrInfo) const {
+ return std::make_pair(SDValue(), SDValue());
+ }
+
+ /// Emit target-specific code that performs a memchr, in cases where that is
+ /// faster than a libcall. The first returned SDValue is the result of the
+ /// memchr and the second is the chain. Both SDValues can be null if a normal
+ /// libcall should be used.
+ virtual std::pair<SDValue, SDValue>
+ EmitTargetCodeForMemchr(SelectionDAG &DAG, const SDLoc &dl, SDValue Chain,
+ SDValue Src, SDValue Char, SDValue Length,
+ MachinePointerInfo SrcPtrInfo) const {
+ return std::make_pair(SDValue(), SDValue());
+ }
+
+ /// Emit target-specific code that performs a strcpy or stpcpy, in cases
+ /// where that is faster than a libcall.
+ /// The first returned SDValue is the result of the copy (the start
+ /// of the destination string for strcpy, a pointer to the null terminator
+ /// for stpcpy) and the second is the chain. Both SDValues can be null
+ /// if a normal libcall should be used.
+ virtual std::pair<SDValue, SDValue>
+ EmitTargetCodeForStrcpy(SelectionDAG &DAG, const SDLoc &DL, SDValue Chain,
+ SDValue Dest, SDValue Src,
+ MachinePointerInfo DestPtrInfo,
+ MachinePointerInfo SrcPtrInfo, bool isStpcpy) const {
+ return std::make_pair(SDValue(), SDValue());
+ }
+
+ /// Emit target-specific code that performs a strcmp, in cases where that is
+ /// faster than a libcall.
+ /// The first returned SDValue is the result of the strcmp and the second is
+ /// the chain. Both SDValues can be null if a normal libcall should be used.
+ virtual std::pair<SDValue, SDValue>
+ EmitTargetCodeForStrcmp(SelectionDAG &DAG, const SDLoc &dl, SDValue Chain,
+ SDValue Op1, SDValue Op2,
+ MachinePointerInfo Op1PtrInfo,
+ MachinePointerInfo Op2PtrInfo) const {
+ return std::make_pair(SDValue(), SDValue());
+ }
+
+ virtual std::pair<SDValue, SDValue>
+ EmitTargetCodeForStrlen(SelectionDAG &DAG, const SDLoc &DL, SDValue Chain,
+ SDValue Src, MachinePointerInfo SrcPtrInfo) const {
+ return std::make_pair(SDValue(), SDValue());
+ }
+
+ virtual std::pair<SDValue, SDValue>
+ EmitTargetCodeForStrnlen(SelectionDAG &DAG, const SDLoc &DL, SDValue Chain,
+ SDValue Src, SDValue MaxLength,
+ MachinePointerInfo SrcPtrInfo) const {
+ return std::make_pair(SDValue(), SDValue());
+ }
+
+ // Return true when the decision to generate FMA's (or FMS, FMLA etc) rather
+ // than FMUL and ADD is delegated to the machine combiner.
+ virtual bool generateFMAsInMachineCombiner(CodeGenOpt::Level OptLevel) const {
+ return false;
+ }
+};
+
+} // end namespace llvm
+
+#endif // LLVM_CODEGEN_SELECTIONDAGTARGETINFO_H