mirror of
https://github.com/ZDoom/qzdoom.git
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91 lines
3.7 KiB
C++
91 lines
3.7 KiB
C++
/*
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** SSA float32 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_float_ptr.h"
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#include "ssa_scope.h"
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SSAFloatPtr::SSAFloatPtr()
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: v(0)
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{
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}
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SSAFloatPtr::SSAFloatPtr(llvm::Value *v)
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: v(v)
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{
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}
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llvm::Type *SSAFloatPtr::llvm_type()
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{
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return llvm::Type::getFloatPtrTy(SSAScope::context());
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}
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SSAFloatPtr SSAFloatPtr::operator[](SSAInt index) const
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{
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return SSAFloatPtr::from_llvm(SSAScope::builder().CreateGEP(v, index.v, SSAScope::hint()));
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}
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SSAFloat SSAFloatPtr::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 SSAFloat::from_llvm(loadInst);
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}
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SSAVec4f SSAFloatPtr::load_vec4f(bool constantScopeDomain) const
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{
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llvm::PointerType *m4xfloattypeptr = llvm::VectorType::get(llvm::Type::getFloatTy(SSAScope::context()), 4)->getPointerTo();
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auto loadInst = SSAScope::builder().CreateAlignedLoad(SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, 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 SSAVec4f::from_llvm(loadInst);
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}
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SSAVec4f SSAFloatPtr::load_unaligned_vec4f(bool constantScopeDomain) const
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{
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llvm::PointerType *m4xfloattypeptr = llvm::VectorType::get(llvm::Type::getFloatTy(SSAScope::context()), 4)->getPointerTo();
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auto loadInst = SSAScope::builder().CreateAlignedLoad(SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, 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 SSAVec4f::from_llvm(loadInst);
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}
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void SSAFloatPtr::store(const SSAFloat &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 SSAFloatPtr::store_vec4f(const SSAVec4f &new_value)
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{
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llvm::PointerType *m4xfloattypeptr = llvm::VectorType::get(llvm::Type::getFloatTy(SSAScope::context()), 4)->getPointerTo();
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auto inst = SSAScope::builder().CreateAlignedStore(new_value.v, SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, 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 SSAFloatPtr::store_unaligned_vec4f(const SSAVec4f &new_value)
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{
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llvm::PointerType *m4xfloattypeptr = llvm::VectorType::get(llvm::Type::getFloatTy(SSAScope::context()), 4)->getPointerTo();
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auto inst = SSAScope::builder().CreateAlignedStore(new_value.v, SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, 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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