blob: fbf29fdfc49cece9b348490bc31024563a1403d6 (
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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
//===----------------- LLVMContextImpl.h - Implementation ------*- 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 LLVMContextImpl, the opaque implementation
// of LLVMContext.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LLVMCONTEXT_IMPL_H
#define LLVM_LLVMCONTEXT_IMPL_H
#include "llvm/System/RWMutex.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/DenseMap.h"
namespace llvm {
class ConstantInt;
class LLVMContext;
class Type;
struct DenseMapAPIntKeyInfo {
struct KeyTy {
APInt val;
const Type* type;
KeyTy(const APInt& V, const Type* Ty) : val(V), type(Ty) {}
KeyTy(const KeyTy& that) : val(that.val), type(that.type) {}
bool operator==(const KeyTy& that) const {
return type == that.type && this->val == that.val;
}
bool operator!=(const KeyTy& that) const {
return !this->operator==(that);
}
};
static inline KeyTy getEmptyKey() { return KeyTy(APInt(1,0), 0); }
static inline KeyTy getTombstoneKey() { return KeyTy(APInt(1,1), 0); }
static unsigned getHashValue(const KeyTy &Key) {
return DenseMapInfo<void*>::getHashValue(Key.type) ^
Key.val.getHashValue();
}
static bool isEqual(const KeyTy &LHS, const KeyTy &RHS) {
return LHS == RHS;
}
static bool isPod() { return false; }
};
class LLVMContextImpl {
sys::SmartRWMutex<true> ConstantsLock;
typedef DenseMap<DenseMapAPIntKeyInfo::KeyTy, ConstantInt*,
DenseMapAPIntKeyInfo> IntMapTy;
IntMapTy IntConstants;
LLVMContext &Context;
LLVMContextImpl();
LLVMContextImpl(const LLVMContextImpl&);
public:
LLVMContextImpl(LLVMContext &C) : Context(C) { }
/// Return a ConstantInt with the specified value and an implied Type. The
/// type is the integer type that corresponds to the bit width of the value.
ConstantInt* getConstantInt(const APInt &V);
};
}
#endif
|
