mirror of https://github.com/ZDoom/qzdoom.git
112 lines
4.7 KiB
C++
112 lines
4.7 KiB
C++
/*
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** SSA int32 pointer
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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_int_ptr.h"
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#include "ssa_scope.h"
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#include "ssa_bool.h"
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SSAIntPtr::SSAIntPtr()
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: v(0)
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{
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}
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SSAIntPtr::SSAIntPtr(llvm::Value *v)
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: v(v)
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{
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}
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llvm::Type *SSAIntPtr::llvm_type()
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{
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return llvm::Type::getInt32PtrTy(SSAScope::context());
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}
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SSAIntPtr SSAIntPtr::operator[](SSAInt index) const
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{
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return SSAIntPtr::from_llvm(SSAScope::builder().CreateGEP(v, index.v, SSAScope::hint()));
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}
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SSAInt SSAIntPtr::load(bool constantScopeDomain) const
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{
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auto loadInst = SSAScope::builder().CreateLoad(v, false, SSAScope::hint());
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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 SSAInt::from_llvm(loadInst);
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}
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SSAVec4i SSAIntPtr::load_vec4i(bool constantScopeDomain) const
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{
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llvm::PointerType *m4xint32typeptr = llvm::VectorType::get(llvm::Type::getInt32Ty(SSAScope::context()), 4)->getPointerTo();
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auto loadInst = SSAScope::builder().CreateAlignedLoad(SSAScope::builder().CreateBitCast(v, m4xint32typeptr, SSAScope::hint()), 16, false, SSAScope::hint());
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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 SSAVec4i::from_llvm(loadInst);
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}
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SSAVec4i SSAIntPtr::load_unaligned_vec4i(bool constantScopeDomain) const
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{
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llvm::PointerType *m4xint32typeptr = llvm::VectorType::get(llvm::Type::getInt32Ty(SSAScope::context()), 4)->getPointerTo();
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auto loadInst = SSAScope::builder().CreateAlignedLoad(SSAScope::builder().CreateBitCast(v, m4xint32typeptr, SSAScope::hint()), 1, false, SSAScope::hint());
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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 SSAVec4i::from_llvm(loadInst);
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}
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void SSAIntPtr::store(const SSAInt &new_value)
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{
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auto inst = SSAScope::builder().CreateStore(new_value.v, v, false);
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inst->setMetadata(llvm::LLVMContext::MD_noalias, SSAScope::constant_scope_list());
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}
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void SSAIntPtr::store_vec4i(const SSAVec4i &new_value)
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{
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llvm::PointerType *m4xint32typeptr = llvm::VectorType::get(llvm::Type::getInt32Ty(SSAScope::context()), 4)->getPointerTo();
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auto inst = SSAScope::builder().CreateAlignedStore(new_value.v, SSAScope::builder().CreateBitCast(v, m4xint32typeptr, SSAScope::hint()), 16);
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inst->setMetadata(llvm::LLVMContext::MD_noalias, SSAScope::constant_scope_list());
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}
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void SSAIntPtr::store_unaligned_vec4i(const SSAVec4i &new_value)
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{
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llvm::PointerType *m4xint32typeptr = llvm::VectorType::get(llvm::Type::getInt32Ty(SSAScope::context()), 4)->getPointerTo();
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auto inst = SSAScope::builder().CreateAlignedStore(new_value.v, SSAScope::builder().CreateBitCast(v, m4xint32typeptr, SSAScope::hint()), 4);
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inst->setMetadata(llvm::LLVMContext::MD_noalias, SSAScope::constant_scope_list());
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}
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void SSAIntPtr::store_masked_vec4i(const SSAVec4i &new_value, SSABool mask[4])
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{
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// Create mask vector
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std::vector<llvm::Constant*> maskconstants;
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maskconstants.resize(4, llvm::ConstantInt::get(SSAScope::context(), llvm::APInt(1, 0, false)));
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llvm::Value *maskValue = llvm::ConstantVector::get(maskconstants);
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#if LLVM_VERSION_MAJOR < 3 || (LLVM_VERSION_MAJOR == 3 && LLVM_VERSION_MINOR < 9)
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for (int i = 0; i < 4; i++)
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maskValue = SSAScope::builder().CreateInsertElement(maskValue, mask[i].v, SSAInt(i).v, SSAScope::hint());
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#else
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for (int i = 0; i < 4; i++)
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maskValue = SSAScope::builder().CreateInsertElement(maskValue, mask[i].v, (uint64_t)i, SSAScope::hint());
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#endif
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llvm::PointerType *m4xint32typeptr = llvm::VectorType::get(llvm::Type::getInt32Ty(SSAScope::context()), 4)->getPointerTo();
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auto inst = SSAScope::builder().CreateMaskedStore(new_value.v, SSAScope::builder().CreateBitCast(v, m4xint32typeptr, SSAScope::hint()), 1, maskValue);
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inst->setMetadata(llvm::LLVMContext::MD_noalias, SSAScope::constant_scope_list());
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}
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