blob: 06394ffdc1e2947629dbd39570f37dc8231f7cfd (
plain)
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
|
//===-- CodeGen/MachineConstantPool.h - Abstract Constant Pool --*- C++ -*-===//
//
// The MachineConstantPool class keeps track of constants referenced by a
// function which must be spilled to memory. This is used for constants which
// are unable to be used directly as operands to instructions, which typically
// include floating point and large integer constants.
//
// Instructions reference the address of these constant pool constants through
// the use of MO_ConstantPoolIndex values. When emitting assembly or machine
// code, these virtual address references are converted to refer to the
// address of the function constant pool values.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_MACHINECONSTANTPOOL_H
#define LLVM_CODEGEN_MACHINECONSTANTPOOL_H
#include <vector>
class Constant;
class MachineConstantPool {
std::vector<Constant*> Constants;
public:
/// getConstantPoolIndex - Create a new entry in the constant pool or return
/// an existing one. This should eventually allow sharing of duplicate
/// objects in the constant pool, but this is adequate for now.
///
unsigned getConstantPoolIndex(Constant *C) {
Constants.push_back(C);
return Constants.size()-1;
}
const std::vector<Constant*> &getConstants() const { return Constants; }
/// print - Used by the MachineFunction printer to print information about
/// stack objects. Implemented in MachineFunction.cpp
///
void print(std::ostream &OS) const;
/// dump - Call print(std::cerr) to be called from the debugger.
void dump() const;
};
#endif
|
