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Issue 455593004: Subzero: Add a random number generator. (Closed) Base URL: https://gerrit.chromium.org/gerrit/p/native_client/pnacl-subzero.git@master
Patch Set: Rebase Created 6 years, 4 months ago
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1 //===- subzero/src/IceGlobalContext.h - Global context defs -----*- C++ -*-===// 1 //===- subzero/src/IceGlobalContext.h - Global context defs -----*- C++ -*-===//
2 // 2 //
3 // The Subzero Code Generator 3 // The Subzero Code Generator
4 // 4 //
5 // This file is distributed under the University of Illinois Open Source 5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details. 6 // License. See LICENSE.TXT for details.
7 // 7 //
8 //===----------------------------------------------------------------------===// 8 //===----------------------------------------------------------------------===//
9 // 9 //
10 // This file declares aspects of the compilation that persist across 10 // This file declares aspects of the compilation that persist across
11 // multiple functions. 11 // multiple functions.
12 // 12 //
13 //===----------------------------------------------------------------------===// 13 //===----------------------------------------------------------------------===//
14 14
15 #ifndef SUBZERO_SRC_ICEGLOBALCONTEXT_H 15 #ifndef SUBZERO_SRC_ICEGLOBALCONTEXT_H
16 #define SUBZERO_SRC_ICEGLOBALCONTEXT_H 16 #define SUBZERO_SRC_ICEGLOBALCONTEXT_H
17 17
18 #include "llvm/ADT/OwningPtr.h" 18 #include "llvm/ADT/OwningPtr.h"
19 #include "llvm/Support/Allocator.h" 19 #include "llvm/Support/Allocator.h"
20 #include "llvm/Support/raw_ostream.h" 20 #include "llvm/Support/raw_ostream.h"
21 21
22 #include "IceDefs.h" 22 #include "IceDefs.h"
23 #include "IceIntrinsics.h" 23 #include "IceIntrinsics.h"
24 #include "IceRNG.h"
24 #include "IceTypes.h" 25 #include "IceTypes.h"
25 26
26 namespace Ice { 27 namespace Ice {
27 28
28 class ClFlags; 29 class ClFlags;
29 30
30 // TODO: Accesses to all non-const fields of GlobalContext need to 31 // TODO: Accesses to all non-const fields of GlobalContext need to
31 // be synchronized, especially the constant pool, the allocator, and 32 // be synchronized, especially the constant pool, the allocator, and
32 // the output streams. 33 // the output streams.
33 class GlobalContext { 34 class GlobalContext {
(...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after
88 // constants of a given type. 89 // constants of a given type.
89 ConstantList getConstantPool(Type Ty) const; 90 ConstantList getConstantPool(Type Ty) const;
90 91
91 const ClFlags &getFlags() const { return Flags; } 92 const ClFlags &getFlags() const { return Flags; }
92 93
93 // Allocate data of type T using the global allocator. 94 // Allocate data of type T using the global allocator.
94 template <typename T> T *allocate() { return Allocator.Allocate<T>(); } 95 template <typename T> T *allocate() { return Allocator.Allocate<T>(); }
95 96
96 const Intrinsics &getIntrinsicsInfo() const { return IntrinsicsInfo; } 97 const Intrinsics &getIntrinsicsInfo() const { return IntrinsicsInfo; }
97 98
99 // TODO(wala,stichnot): Make the RNG play nicely with multithreaded
100 // translation.
101 RandomNumberGenerator &getRNG() { return RNG; }
102
98 private: 103 private:
99 Ostream *StrDump; // Stream for dumping / diagnostics 104 Ostream *StrDump; // Stream for dumping / diagnostics
100 Ostream *StrEmit; // Stream for code emission 105 Ostream *StrEmit; // Stream for code emission
101 106
102 llvm::BumpPtrAllocator Allocator; 107 llvm::BumpPtrAllocator Allocator;
103 VerboseMask VMask; 108 VerboseMask VMask;
104 llvm::OwningPtr<class ConstantPool> ConstPool; 109 llvm::OwningPtr<class ConstantPool> ConstPool;
105 Intrinsics IntrinsicsInfo; 110 Intrinsics IntrinsicsInfo;
106 const TargetArch Arch; 111 const TargetArch Arch;
107 const OptLevel Opt; 112 const OptLevel Opt;
108 const IceString TestPrefix; 113 const IceString TestPrefix;
109 const ClFlags &Flags; 114 const ClFlags &Flags;
110 bool HasEmittedFirstMethod; 115 bool HasEmittedFirstMethod;
116 RandomNumberGenerator RNG;
111 GlobalContext(const GlobalContext &) LLVM_DELETED_FUNCTION; 117 GlobalContext(const GlobalContext &) LLVM_DELETED_FUNCTION;
112 GlobalContext &operator=(const GlobalContext &) LLVM_DELETED_FUNCTION; 118 GlobalContext &operator=(const GlobalContext &) LLVM_DELETED_FUNCTION;
113 119
114 // Private helpers for mangleName() 120 // Private helpers for mangleName()
115 typedef llvm::SmallVector<char, 32> ManglerVector; 121 typedef llvm::SmallVector<char, 32> ManglerVector;
116 void incrementSubstitutions(ManglerVector &OldName) const; 122 void incrementSubstitutions(ManglerVector &OldName) const;
117 }; 123 };
118 124
119 } // end of namespace Ice 125 } // end of namespace Ice
120 126
121 #endif // SUBZERO_SRC_ICEGLOBALCONTEXT_H 127 #endif // SUBZERO_SRC_ICEGLOBALCONTEXT_H
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