1 //===-- llvm/CodeGen/PseudoSourceValue.h ------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the declaration of the PseudoSourceValue class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_CODEGEN_PSEUDOSOURCEVALUE_H
15 #define LLVM_CODEGEN_PSEUDOSOURCEVALUE_H
17 #include "llvm/Value.h"
20 /// PseudoSourceValue - Special value supplied for machine level alias
21 /// analysis. It indicates that the a memory access references the functions
22 /// stack frame (e.g., a spill slot), below the stack frame (e.g., argument
23 /// space), or constant pool.
24 class PseudoSourceValue : public Value {
27 explicit PseudoSourceValue(const char *_name);
29 virtual void print(std::ostream &OS) const;
31 /// classof - Methods for support type inquiry through isa, cast, and
34 static inline bool classof(const PseudoSourceValue *) { return true; }
35 static inline bool classof(const Value *V) {
36 return V->getValueID() == PseudoSourceValueVal;
39 /// A pseudo source value referencing to the stack frame of a function,
40 /// e.g., a spill slot.
41 static const PseudoSourceValue FPRel;
43 /// A source value referencing the area below the stack frame of a function,
44 /// e.g., the argument space.
45 static const PseudoSourceValue SPRel;
47 /// A source value referencing the global offset table (or something the
49 static const PseudoSourceValue GPRel;
51 /// A source value relative to some kind of thread id/pointer.
52 static const PseudoSourceValue TPRel;
54 /// A SV referencing the constant pool
55 static const PseudoSourceValue CPRel;
57 /// A SV referencing the jump table
58 static const PseudoSourceValue JTRel;
60 } // End llvm namespace