mirror of https://github.com/ZDoom/qzdoom.git
82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
/*
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** SSA value
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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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#include "precomp.h"
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#include "ssa_value.h"
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#include "ssa_int.h"
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#include "ssa_scope.h"
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SSAValue SSAValue::load(bool constantScopeDomain)
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{
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auto loadInst = SSAScope::builder().CreateLoad(v, false);
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if (constantScopeDomain)
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loadInst->setMetadata(llvm::LLVMContext::MD_alias_scope, SSAScope::constant_scope_list());
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return SSAValue::from_llvm(loadInst);
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}
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void SSAValue::store(llvm::Value *value)
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{
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auto inst = SSAScope::builder().CreateStore(value, v, false);
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inst->setMetadata(llvm::LLVMContext::MD_noalias, SSAScope::constant_scope_list());
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}
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SSAIndexLookup SSAValue::operator[](int index)
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{
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SSAIndexLookup result;
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result.v = v;
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result.indexes.push_back(SSAInt(index).v);
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return result;
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}
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SSAIndexLookup SSAValue::operator[](SSAInt index)
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{
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SSAIndexLookup result;
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result.v = v;
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result.indexes.push_back(index.v);
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return result;
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}
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/////////////////////////////////////////////////////////////////////////////
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SSAIndexLookup::operator SSAValue()
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{
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return SSAValue::from_llvm(SSAScope::builder().CreateGEP(v, indexes));
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}
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SSAIndexLookup SSAIndexLookup::operator[](int index)
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{
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SSAIndexLookup result;
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result.v = v;
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result.indexes = indexes;
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result.indexes.push_back(SSAInt(index).v);
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return result;
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}
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SSAIndexLookup SSAIndexLookup::operator[](SSAInt index)
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{
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SSAIndexLookup result;
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result.v = v;
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result.indexes = indexes;
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result.indexes.push_back(index.v);
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return result;
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}
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