/usr/include/llvm-6.0/llvm/MC/MachineLocation.h is in llvm-6.0-dev 1:6.0-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | //===- llvm/MC/MachineLocation.h --------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// The MachineLocation class is used to represent a simple location in a machine
// frame. Locations will be one of two forms; a register or an address formed
// from a base address plus an offset. Register indirection can be specified by
// explicitly passing an offset to the constructor.
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MACHINELOCATION_H
#define LLVM_MC_MACHINELOCATION_H
#include <cstdint>
#include <cassert>
namespace llvm {
class MachineLocation {
private:
bool IsRegister = false; ///< True if location is a register.
unsigned Register = 0; ///< gcc/gdb register number.
public:
enum : uint32_t {
// The target register number for an abstract frame pointer. The value is
// an arbitrary value that doesn't collide with any real target register.
VirtualFP = ~0U
};
MachineLocation() = default;
/// Create a direct register location.
explicit MachineLocation(unsigned R, bool Indirect = false)
: IsRegister(!Indirect), Register(R) {}
bool operator==(const MachineLocation &Other) const {
return IsRegister == Other.IsRegister && Register == Other.Register;
}
// Accessors.
/// \return true iff this is a register-indirect location.
bool isIndirect() const { return !IsRegister; }
bool isReg() const { return IsRegister; }
unsigned getReg() const { return Register; }
void setIsRegister(bool Is) { IsRegister = Is; }
void setRegister(unsigned R) { Register = R; }
};
inline bool operator!=(const MachineLocation &LHS, const MachineLocation &RHS) {
return !(LHS == RHS);
}
} // end namespace llvm
#endif // LLVM_MC_MACHINELOCATION_H
|