mirror of
https://github.com/ZDoom/qzdoom-gpl.git
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64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/*
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** SSA scope data
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** Copyright (c) 2016 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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*/
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#pragma once
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class SSAInt;
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class SSAScope
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{
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public:
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SSAScope(llvm::LLVMContext *context, llvm::Module *module, llvm::IRBuilder<> *builder);
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~SSAScope();
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static llvm::LLVMContext &context();
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static llvm::Module *module();
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static llvm::IRBuilder<> &builder();
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static llvm::Function *intrinsic(llvm::Intrinsic::ID id, llvm::ArrayRef<llvm::Type *> parameter_types = llvm::ArrayRef<llvm::Type*>());
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static llvm::Value *alloc_stack(llvm::Type *type);
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static llvm::Value *alloc_stack(llvm::Type *type, SSAInt size);
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static llvm::MDNode *constant_scope_list();
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static const std::string &hint();
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static void set_hint(const std::string &hint);
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private:
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static SSAScope *instance;
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llvm::LLVMContext *_context;
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llvm::Module *_module;
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llvm::IRBuilder<> *_builder;
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llvm::MDNode *_constant_scope_domain;
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llvm::MDNode *_constant_scope;
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llvm::MDNode *_constant_scope_list;
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std::string _hint;
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};
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class SSAScopeHint
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{
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public:
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SSAScopeHint() : old_hint(SSAScope::hint()) { }
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SSAScopeHint(const std::string &hint) : old_hint(SSAScope::hint()) { SSAScope::set_hint(hint); }
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~SSAScopeHint() { SSAScope::set_hint(old_hint); }
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void set(const std::string &hint) { SSAScope::set_hint(hint); }
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void clear() { SSAScope::set_hint(old_hint); }
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private:
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std::string old_hint;
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};
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