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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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30
src/r_compiler/ssa/ssa_float_ptr.cpp
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@ -23,36 +23,48 @@ SSAFloatPtr SSAFloatPtr::operator[](SSAInt index) const
return SSAFloatPtr::from_llvm(SSAScope::builder().CreateGEP(v, index.v, SSAScope::hint()));
}
SSAFloat SSAFloatPtr::load() const
SSAFloat SSAFloatPtr::load(bool constantScopeDomain) const
{
return SSAFloat::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 SSAFloat::from_llvm(loadInst);
}
SSAVec4f SSAFloatPtr::load_vec4f() const
SSAVec4f SSAFloatPtr::load_vec4f(bool constantScopeDomain) const
{
llvm::PointerType *m4xfloattypeptr = llvm::VectorType::get(llvm::Type::getFloatTy(SSAScope::context()), 4)->getPointerTo();
return SSAVec4f::from_llvm(SSAScope::builder().CreateLoad(SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, SSAScope::hint()), false, SSAScope::hint()));
auto loadInst = SSAScope::builder().CreateLoad(SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, SSAScope::hint()), false, SSAScope::hint());
if (constantScopeDomain)
loadInst->setMetadata(llvm::LLVMContext::MD_alias_scope, SSAScope::constant_scope_list());
return SSAVec4f::from_llvm(loadInst);
}
SSAVec4f SSAFloatPtr::load_unaligned_vec4f() const
SSAVec4f SSAFloatPtr::load_unaligned_vec4f(bool constantScopeDomain) const
{
llvm::PointerType *m4xfloattypeptr = llvm::VectorType::get(llvm::Type::getFloatTy(SSAScope::context()), 4)->getPointerTo();
return SSAVec4f::from_llvm(SSAScope::builder().Insert(new llvm::LoadInst(SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, SSAScope::hint()), SSAScope::hint(), false, 4), SSAScope::hint()));
auto loadInst = SSAScope::builder().CreateAlignedLoad(SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, SSAScope::hint()), 4, false, SSAScope::hint());
if (constantScopeDomain)
loadInst->setMetadata(llvm::LLVMContext::MD_alias_scope, SSAScope::constant_scope_list());
return SSAVec4f::from_llvm(loadInst);
}
void SSAFloatPtr::store(const SSAFloat &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 SSAFloatPtr::store_vec4f(const SSAVec4f &new_value)
{
llvm::PointerType *m4xfloattypeptr = llvm::VectorType::get(llvm::Type::getFloatTy(SSAScope::context()), 4)->getPointerTo();
SSAScope::builder().CreateStore(new_value.v, SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, SSAScope::hint()));
auto inst = SSAScope::builder().CreateStore(new_value.v, SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, SSAScope::hint()));
inst->setMetadata(llvm::LLVMContext::MD_noalias, SSAScope::constant_scope_list());
}
void SSAFloatPtr::store_unaligned_vec4f(const SSAVec4f &new_value)
{
llvm::PointerType *m4xfloattypeptr = llvm::VectorType::get(llvm::Type::getFloatTy(SSAScope::context()), 4)->getPointerTo();
SSAScope::builder().CreateAlignedStore(new_value.v, SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, SSAScope::hint()), 4);
auto inst = SSAScope::builder().CreateAlignedStore(new_value.v, SSAScope::builder().CreateBitCast(v, m4xfloattypeptr, SSAScope::hint()), 4);
inst->setMetadata(llvm::LLVMContext::MD_noalias, SSAScope::constant_scope_list());
}