#ifndef LLVM_CODEGEN_MACHINEMEMOPERAND_H
#define LLVM_CODEGEN_MACHINEMEMOPERAND_H
-#include "llvm/System/DataTypes.h"
+#include "llvm/ADT/PointerUnion.h"
+#include "llvm/CodeGen/PseudoSourceValue.h"
+#include "llvm/IR/Metadata.h"
+#include "llvm/IR/Value.h" // PointerLikeTypeTraits<Value*>
+#include "llvm/Support/DataTypes.h"
namespace llvm {
-class Value;
class FoldingSetNodeID;
+class MDNode;
class raw_ostream;
/// MachinePointerInfo - This class contains a discriminated union of
/// V - This is the IR pointer value for the access, or it is null if unknown.
/// If this is null, then the access is to a pointer in the default address
/// space.
- const Value *V;
-
+ PointerUnion<const Value *, const PseudoSourceValue *> V;
+
/// Offset - This is an offset from the base Value*.
int64_t Offset;
-
- explicit MachinePointerInfo(const Value *v, int64_t offset = 0)
+
+ explicit MachinePointerInfo(const Value *v = nullptr, int64_t offset = 0)
+ : V(v), Offset(offset) {}
+
+ explicit MachinePointerInfo(const PseudoSourceValue *v,
+ int64_t offset = 0)
: V(v), Offset(offset) {}
-
+
MachinePointerInfo getWithOffset(int64_t O) const {
- if (V == 0) return MachinePointerInfo(0, 0);
- return MachinePointerInfo(V, Offset+O);
+ if (V.isNull()) return MachinePointerInfo();
+ if (V.is<const Value*>())
+ return MachinePointerInfo(V.get<const Value*>(), Offset+O);
+ return MachinePointerInfo(V.get<const PseudoSourceValue*>(), Offset+O);
}
-
+
/// getAddrSpace - Return the LLVM IR address space number that this pointer
/// points into.
unsigned getAddrSpace() const;
+
+ /// getConstantPool - Return a MachinePointerInfo record that refers to the
+ /// constant pool.
+ static MachinePointerInfo getConstantPool();
+
+ /// getFixedStack - Return a MachinePointerInfo record that refers to the
+ /// the specified FrameIndex.
+ static MachinePointerInfo getFixedStack(int FI, int64_t offset = 0);
+
+ /// getJumpTable - Return a MachinePointerInfo record that refers to a
+ /// jump table entry.
+ static MachinePointerInfo getJumpTable();
+
+ /// getGOT - Return a MachinePointerInfo record that refers to a
+ /// GOT entry.
+ static MachinePointerInfo getGOT();
+
+ /// getStack - stack pointer relative access.
+ static MachinePointerInfo getStack(int64_t Offset);
};
-
-
+
+
//===----------------------------------------------------------------------===//
/// MachineMemOperand - A description of a memory reference used in the backend.
/// Instead of holding a StoreInst or LoadInst, this class holds the address
MachinePointerInfo PtrInfo;
uint64_t Size;
unsigned Flags;
+ AAMDNodes AAInfo;
+ const MDNode *Ranges;
public:
/// Flags values. These may be or'd together.
MOVolatile = 4,
/// The memory access is non-temporal.
MONonTemporal = 8,
+ /// The memory access is invariant.
+ MOInvariant = 16,
+ // Target hints allow target passes to annotate memory operations.
+ MOTargetStartBit = 5,
+ MOTargetNumBits = 3,
// This is the number of bits we need to represent flags.
- MOMaxBits = 4
+ MOMaxBits = 8
};
/// MachineMemOperand - Construct an MachineMemOperand object with the
/// specified PtrInfo, flags, size, and base alignment.
MachineMemOperand(MachinePointerInfo PtrInfo, unsigned flags, uint64_t s,
- unsigned base_alignment);
+ unsigned base_alignment,
+ const AAMDNodes &AAInfo = AAMDNodes(),
+ const MDNode *Ranges = nullptr);
const MachinePointerInfo &getPointerInfo() const { return PtrInfo; }
-
+
/// getValue - Return the base address of the memory access. This may either
/// be a normal LLVM IR Value, or one of the special values used in CodeGen.
/// Special values are those obtained via
/// other PseudoSourceValue member functions which return objects which stand
/// for frame/stack pointer relative references and other special references
/// which are not representable in the high-level IR.
- const Value *getValue() const { return PtrInfo.V; }
+ const Value *getValue() const { return PtrInfo.V.dyn_cast<const Value*>(); }
+
+ const PseudoSourceValue *getPseudoValue() const {
+ return PtrInfo.V.dyn_cast<const PseudoSourceValue*>();
+ }
+
+ const void *getOpaqueValue() const { return PtrInfo.V.getOpaqueValue(); }
/// getFlags - Return the raw flags of the source value, \see MemOperandFlags.
unsigned int getFlags() const { return Flags & ((1 << MOMaxBits) - 1); }
+ /// Bitwise OR the current flags with the given flags.
+ void setFlags(unsigned f) { Flags |= (f & ((1 << MOMaxBits) - 1)); }
+
/// getOffset - For normal values, this is a byte offset added to the base
/// address. For PseudoSourceValue::FPRel values, this is the FrameIndex
/// number.
int64_t getOffset() const { return PtrInfo.Offset; }
+ unsigned getAddrSpace() const { return PtrInfo.getAddrSpace(); }
+
/// getSize - Return the size in bytes of the memory reference.
uint64_t getSize() const { return Size; }
/// base address, without the offset.
uint64_t getBaseAlignment() const { return (1u << (Flags >> MOMaxBits)) >> 1; }
+ /// getAAInfo - Return the AA tags for the memory reference.
+ AAMDNodes getAAInfo() const { return AAInfo; }
+
+ /// getRanges - Return the range tag for the memory reference.
+ const MDNode *getRanges() const { return Ranges; }
+
bool isLoad() const { return Flags & MOLoad; }
bool isStore() const { return Flags & MOStore; }
bool isVolatile() const { return Flags & MOVolatile; }
bool isNonTemporal() const { return Flags & MONonTemporal; }
+ bool isInvariant() const { return Flags & MOInvariant; }
+
+ /// isUnordered - Returns true if this memory operation doesn't have any
+ /// ordering constraints other than normal aliasing. Volatile and atomic
+ /// memory operations can't be reordered.
+ ///
+ /// Currently, we don't model the difference between volatile and atomic
+ /// operations. They should retain their ordering relative to all memory
+ /// operations.
+ bool isUnordered() const { return !isVolatile(); }
/// refineAlignment - Update this MachineMemOperand to reflect the alignment
/// of MMO, if it has a greater alignment. This must only be used when the
/// should only be used when an object is being relocated and all references
/// to it are being updated.
void setValue(const Value *NewSV) { PtrInfo.V = NewSV; }
+ void setValue(const PseudoSourceValue *NewSV) { PtrInfo.V = NewSV; }
void setOffset(int64_t NewOffset) { PtrInfo.Offset = NewOffset; }
/// Profile - Gather unique data for the object.
///
void Profile(FoldingSetNodeID &ID) const;
+
+ friend bool operator==(const MachineMemOperand &LHS,
+ const MachineMemOperand &RHS) {
+ return LHS.getValue() == RHS.getValue() &&
+ LHS.getPseudoValue() == RHS.getPseudoValue() &&
+ LHS.getSize() == RHS.getSize() &&
+ LHS.getOffset() == RHS.getOffset() &&
+ LHS.getFlags() == RHS.getFlags() &&
+ LHS.getAAInfo() == RHS.getAAInfo() &&
+ LHS.getRanges() == RHS.getRanges() &&
+ LHS.getAlignment() == RHS.getAlignment() &&
+ LHS.getAddrSpace() == RHS.getAddrSpace();
+ }
+
+ friend bool operator!=(const MachineMemOperand &LHS,
+ const MachineMemOperand &RHS) {
+ return !(LHS == RHS);
+ }
};
raw_ostream &operator<<(raw_ostream &OS, const MachineMemOperand &MRO);
projects / oota-llvm.git / blobdiff