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Add aliasing meta data to loads and stores

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This commit is contained in:
Magnus Norddahl 2016-10-08 09:29:26 +02:00
commit fc07a25306
22 changed files with 260 additions and 189 deletions
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20
src/r_compiler/ssa/ssa_vec4f_ptr.cpp
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@ -23,22 +23,30 @@ SSAVec4fPtr SSAVec4fPtr::operator[](SSAInt index) const
return SSAVec4fPtr::from_llvm(SSAScope::builder().CreateGEP(v, index.v, SSAScope::hint()));
}
SSAVec4f SSAVec4fPtr::load() const
SSAVec4f SSAVec4fPtr::load(bool constantScopeDomain) const
{
return SSAVec4f::from_llvm(SSAScope::builder().CreateLoad(v, false, SSAScope::hint()));
auto loadInst = SSAScope::builder().CreateLoad(v, false, SSAScope::hint());
if (constantScopeDomain)
loadInst->setMetadata(llvm::LLVMContext::MD_alias_scope, SSAScope::constant_scope_list());
return SSAVec4f::from_llvm(loadInst);
}
SSAVec4f SSAVec4fPtr::load_unaligned() const
SSAVec4f SSAVec4fPtr::load_unaligned(bool constantScopeDomain) const
{
return SSAVec4f::from_llvm(SSAScope::builder().Insert(new llvm::LoadInst(v, SSAScope::hint(), false, 4), SSAScope::hint()));
auto loadInst = SSAScope::builder().CreateAlignedLoad(v, 4, false, SSAScope::hint());
if (constantScopeDomain)
loadInst->setMetadata(llvm::LLVMContext::MD_alias_scope, SSAScope::constant_scope_list());
return SSAVec4f::from_llvm(loadInst);
}
void SSAVec4fPtr::store(const SSAVec4f &new_value)
{
SSAScope::builder().CreateStore(new_value.v, v, false);
auto inst = SSAScope::builder().CreateStore(new_value.v, v, false);
inst->setMetadata(llvm::LLVMContext::MD_noalias, SSAScope::constant_scope_list());
}
void SSAVec4fPtr::store_unaligned(const SSAVec4f &new_value)
{
SSAScope::builder().CreateAlignedStore(new_value.v, v, 4, false);
auto inst = SSAScope::builder().CreateAlignedStore(new_value.v, v, 4, false);
inst->setMetadata(llvm::LLVMContext::MD_noalias, SSAScope::constant_scope_list());
}