| 1 | //===-- llvm/IR/Mangler.h - Self-contained name mangler ---------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // Unified name mangler for various backends. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #ifndef LLVM_IR_MANGLER_H |
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| 14 | #define LLVM_IR_MANGLER_H |
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| 15 | |
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| 16 | #include "llvm/ADT/DenseMap.h" |
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| 17 | |
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| 18 | namespace llvm { |
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| 19 | |
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| 20 | class DataLayout; |
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| 21 | class GlobalValue; |
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| 22 | template <typename T> class SmallVectorImpl; |
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| 23 | class Triple; |
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| 24 | class Twine; |
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| 25 | class raw_ostream; |
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| 26 | |
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| 27 | class Mangler { |
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| 28 | /// We need to give global values the same name every time they are mangled. |
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| 29 | /// This keeps track of the number we give to anonymous ones. |
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| 30 | mutable DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs; |
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| 31 | |
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| 32 | public: |
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| 33 | /// Print the appropriate prefix and the specified global variable's name. |
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| 34 | /// If the global variable doesn't have a name, this fills in a unique name |
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| 35 | /// for the global. |
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| 36 | void getNameWithPrefix(raw_ostream &OS, const GlobalValue *GV, |
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| 37 | bool CannotUsePrivateLabel) const; |
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| 38 | void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV, |
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| 39 | bool CannotUsePrivateLabel) const; |
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| 40 | |
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| 41 | /// Print the appropriate prefix and the specified name as the global variable |
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| 42 | /// name. GVName must not be empty. |
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| 43 | static void getNameWithPrefix(raw_ostream &OS, const Twine &GVName, |
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| 44 | const DataLayout &DL); |
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| 45 | static void getNameWithPrefix(SmallVectorImpl<char> &OutName, |
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| 46 | const Twine &GVName, const DataLayout &DL); |
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| 47 | }; |
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| 48 | |
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| 49 | void emitLinkerFlagsForGlobalCOFF(raw_ostream &OS, const GlobalValue *GV, |
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| 50 | const Triple &TT, Mangler &Mangler); |
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| 51 | |
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| 52 | void emitLinkerFlagsForUsedCOFF(raw_ostream &OS, const GlobalValue *GV, |
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| 53 | const Triple &T, Mangler &M); |
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| 54 | |
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| 55 | } // End llvm namespace |
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| 56 | |
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| 57 | #endif |
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| 58 | |
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