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llvm_utils.cpp
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#include "llvm_utils.h"
#include <functional>
#include <libasr/assert.h>
#include <libasr/codegen/llvm_utils.h>
#include <libasr/codegen/llvm_array_utils.h>
#include <libasr/asr_utils.h>
namespace LCompilers {
namespace LLVM {
llvm::Value* CreateLoad(llvm::IRBuilder<> &builder, llvm::Value *x) {
llvm::Type *t = x->getType();
LCOMPILERS_ASSERT(t->isPointerTy());
llvm::Type *t2 = t->getContainedType(0);
return builder.CreateLoad(t2, x);
}
llvm::Value* CreateStore(llvm::IRBuilder<> &builder, llvm::Value *x, llvm::Value *y) {
LCOMPILERS_ASSERT(y->getType()->isPointerTy());
return builder.CreateStore(x, y);
}
llvm::Value* CreateGEP(llvm::IRBuilder<> &builder, llvm::Value *x, std::vector<llvm::Value *> &idx) {
llvm::Type *t = x->getType();
LCOMPILERS_ASSERT(t->isPointerTy());
llvm::Type *t2 = t->getContainedType(0);
return builder.CreateGEP(t2, x, idx);
}
llvm::Value* CreateInBoundsGEP(llvm::IRBuilder<> &builder, llvm::Value *x, std::vector<llvm::Value *> &idx) {
llvm::Type *t = x->getType();
LCOMPILERS_ASSERT(t->isPointerTy());
llvm::Type *t2 = t->getContainedType(0);
return builder.CreateInBoundsGEP(t2, x, idx);
}
llvm::Value* lfortran_malloc(llvm::LLVMContext &context, llvm::Module &module,
llvm::IRBuilder<> &builder, llvm::Value* arg_size) {
std::string func_name = "_lfortran_malloc";
llvm::Function *fn = module.getFunction(func_name);
if (!fn) {
llvm::FunctionType *function_type = llvm::FunctionType::get(
llvm::Type::getInt8PtrTy(context), {
llvm::Type::getInt32Ty(context)
}, true);
fn = llvm::Function::Create(function_type,
llvm::Function::ExternalLinkage, func_name, module);
}
std::vector<llvm::Value*> args = {arg_size};
return builder.CreateCall(fn, args);
}
llvm::Value* lfortran_calloc(llvm::LLVMContext &context, llvm::Module &module,
llvm::IRBuilder<> &builder, llvm::Value* count, llvm::Value* type_size) {
std::string func_name = "_lfortran_calloc";
llvm::Function *fn = module.getFunction(func_name);
if (!fn) {
llvm::FunctionType *function_type = llvm::FunctionType::get(
llvm::Type::getInt8PtrTy(context), {
llvm::Type::getInt32Ty(context),
llvm::Type::getInt32Ty(context)
}, true);
fn = llvm::Function::Create(function_type,
llvm::Function::ExternalLinkage, func_name, module);
}
std::vector<llvm::Value*> args = {count, type_size};
return builder.CreateCall(fn, args);
}
llvm::Value* lfortran_realloc(llvm::LLVMContext &context, llvm::Module &module,
llvm::IRBuilder<> &builder, llvm::Value* ptr, llvm::Value* arg_size) {
std::string func_name = "_lfortran_realloc";
llvm::Function *fn = module.getFunction(func_name);
if (!fn) {
llvm::FunctionType *function_type = llvm::FunctionType::get(
llvm::Type::getInt8PtrTy(context), {
llvm::Type::getInt8PtrTy(context),
llvm::Type::getInt32Ty(context)
}, true);
fn = llvm::Function::Create(function_type,
llvm::Function::ExternalLinkage, func_name, module);
}
std::vector<llvm::Value*> args = {
builder.CreateBitCast(ptr, llvm::Type::getInt8PtrTy(context)),
arg_size
};
return builder.CreateCall(fn, args);
}
llvm::Value* lfortran_free(llvm::LLVMContext &context, llvm::Module &module,
llvm::IRBuilder<> &builder, llvm::Value* ptr) {
std::string func_name = "_lfortran_free";
llvm::Function *fn = module.getFunction(func_name);
if (!fn) {
llvm::FunctionType *function_type = llvm::FunctionType::get(
llvm::Type::getVoidTy(context), {
llvm::Type::getInt8PtrTy(context)
}, true);
fn = llvm::Function::Create(function_type,
llvm::Function::ExternalLinkage, func_name, module);
}
std::vector<llvm::Value*> args = {
builder.CreateBitCast(ptr, llvm::Type::getInt8PtrTy(context)),
};
return builder.CreateCall(fn, args);
}
} // namespace LLVM
LLVMUtils::LLVMUtils(llvm::LLVMContext& context,
llvm::IRBuilder<>* _builder, std::string& der_type_name_,
std::map<std::string, llvm::StructType*>& name2dertype_,
std::map<std::string, llvm::StructType*>& name2dercontext_,
std::vector<std::string>& struct_type_stack_,
std::map<std::string, std::string>& dertype2parent_,
std::map<std::string, std::map<std::string, int>>& name2memidx_,
CompilerOptions &compiler_options_,
std::unordered_map<std::uint32_t, std::unordered_map<std::string, llvm::Type*>>& arr_arg_type_cache_,
std::map<std::string, std::pair<llvm::Type*, llvm::Type*>>& fname2arg_type_):
context(context), builder(std::move(_builder)), str_cmp_itr(nullptr), der_type_name(der_type_name_),
name2dertype(name2dertype_), name2dercontext(name2dercontext_),
struct_type_stack(struct_type_stack_), dertype2parent(dertype2parent_),
name2memidx(name2memidx_), arr_arg_type_cache(arr_arg_type_cache_), fname2arg_type(fname2arg_type_),
dict_api_lp(nullptr), dict_api_sc(nullptr),
set_api_lp(nullptr), set_api_sc(nullptr), compiler_options(compiler_options_) {
std::vector<llvm::Type*> els_4 = {
llvm::Type::getFloatTy(context),
llvm::Type::getFloatTy(context)};
std::vector<llvm::Type*> els_8 = {
llvm::Type::getDoubleTy(context),
llvm::Type::getDoubleTy(context)};
std::vector<llvm::Type*> els_4_ptr = {
llvm::Type::getFloatPtrTy(context),
llvm::Type::getFloatPtrTy(context)};
std::vector<llvm::Type*> els_8_ptr = {
llvm::Type::getDoublePtrTy(context),
llvm::Type::getDoublePtrTy(context)};
complex_type_4 = llvm::StructType::create(context, els_4, "complex_4");
complex_type_8 = llvm::StructType::create(context, els_8, "complex_8");
complex_type_4_ptr = llvm::StructType::create(context, els_4_ptr, "complex_4_ptr");
complex_type_8_ptr = llvm::StructType::create(context, els_8_ptr, "complex_8_ptr");
character_type = llvm::Type::getInt8PtrTy(context);
}
void LLVMUtils::set_module(llvm::Module* module_) {
module = module_;
}
llvm::Type* LLVMUtils::getMemberType(ASR::ttype_t* mem_type, ASR::Variable_t* member,
llvm::Module* module) {
llvm::Type* llvm_mem_type = nullptr;
switch( mem_type->type ) {
case ASR::ttypeType::Integer: {
int a_kind = ASR::down_cast<ASR::Integer_t>(mem_type)->m_kind;
llvm_mem_type = getIntType(a_kind);
break;
}
case ASR::ttypeType::Real: {
int a_kind = ASR::down_cast<ASR::Real_t>(mem_type)->m_kind;
llvm_mem_type = getFPType(a_kind);
break;
}
case ASR::ttypeType::StructType: {
llvm_mem_type = getStructType(mem_type, module);
break;
}
case ASR::ttypeType::Enum: {
llvm_mem_type = llvm::Type::getInt32Ty(context);
break ;
}
case ASR::ttypeType::Union: {
llvm_mem_type = getUnionType(mem_type, module);
break;
}
case ASR::ttypeType::Allocatable: {
ASR::Allocatable_t* ptr_type = ASR::down_cast<ASR::Allocatable_t>(mem_type);
llvm_mem_type = getMemberType(ptr_type->m_type, member, module)->getPointerTo();
break;
}
case ASR::ttypeType::Pointer: {
ASR::Pointer_t* ptr_type = ASR::down_cast<ASR::Pointer_t>(mem_type);
llvm_mem_type = getMemberType(ptr_type->m_type, member, module)->getPointerTo();
break;
}
case ASR::ttypeType::Complex: {
int a_kind = ASR::down_cast<ASR::Complex_t>(mem_type)->m_kind;
llvm_mem_type = getComplexType(a_kind);
break;
}
case ASR::ttypeType::Character: {
llvm_mem_type = character_type;
break;
}
case ASR::ttypeType::CPtr: {
llvm_mem_type = llvm::Type::getVoidTy(context)->getPointerTo();
break;
}
default:
throw CodeGenError("Cannot identify the type of member, '" +
std::string(member->m_name) +
"' in derived type, '" + der_type_name + "'.",
member->base.base.loc);
}
return llvm_mem_type;
}
void LLVMUtils::createStructTypeContext(ASR::Struct_t* der_type) {
std::string der_type_name = std::string(der_type->m_name);
if (name2dercontext.find(der_type_name) == name2dercontext.end() ) {
llvm::StructType* der_type_llvm = llvm::StructType::create(context,
{},
der_type_name,
der_type->m_is_packed);
name2dercontext[der_type_name] = der_type_llvm;
if( der_type->m_parent != nullptr ) {
ASR::Struct_t *par_der_type = ASR::down_cast<ASR::Struct_t>(
ASRUtils::symbol_get_past_external(der_type->m_parent));
createStructTypeContext(par_der_type);
}
for( size_t i = 0; i < der_type->n_members; i++ ) {
std::string member_name = der_type->m_members[i];
ASR::symbol_t* sym = der_type->m_symtab->get_symbol(member_name);
if (ASR::is_a<ASR::Struct_t>(*sym)) {
ASR::Struct_t *d_type = ASR::down_cast<ASR::Struct_t>(sym);
createStructTypeContext(d_type);
}
}
}
}
llvm::Type* LLVMUtils::getStructType(ASR::Struct_t* der_type, llvm::Module* module, bool is_pointer) {
std::string der_type_name = std::string(der_type->m_name);
createStructTypeContext(der_type);
if (std::find(struct_type_stack.begin(), struct_type_stack.end(),
der_type_name) != struct_type_stack.end()) {
LCOMPILERS_ASSERT(name2dercontext.find(der_type_name) != name2dercontext.end());
return name2dercontext[der_type_name];
}
struct_type_stack.push_back(der_type_name);
llvm::StructType** der_type_llvm;
if (name2dertype.find(der_type_name) != name2dertype.end() ) {
der_type_llvm = &name2dertype[der_type_name];
} else {
der_type_llvm = &name2dercontext[der_type_name];
std::vector<llvm::Type*> member_types;
int member_idx = 0;
if( der_type->m_parent != nullptr ) {
ASR::Struct_t *par_der_type = ASR::down_cast<ASR::Struct_t>(
ASRUtils::symbol_get_past_external(der_type->m_parent));
llvm::Type* par_llvm = getStructType(par_der_type, module);
member_types.push_back(par_llvm);
dertype2parent[der_type_name] = std::string(par_der_type->m_name);
member_idx += 1;
}
for( size_t i = 0; i < der_type->n_members; i++ ) {
std::string member_name = der_type->m_members[i];
ASR::Variable_t* member = ASR::down_cast<ASR::Variable_t>(der_type->m_symtab->get_symbol(member_name));
llvm::Type* llvm_mem_type = get_type_from_ttype_t_util(member->m_type, module, member->m_abi);
member_types.push_back(llvm_mem_type);
name2memidx[der_type_name][std::string(member->m_name)] = member_idx;
member_idx++;
}
(*der_type_llvm)->setBody(member_types);
name2dertype[der_type_name] = *der_type_llvm;
}
struct_type_stack.pop_back();
if ( is_pointer ) {
return (*der_type_llvm)->getPointerTo();
}
return (llvm::Type*) *der_type_llvm;
}
llvm::Type* LLVMUtils::getStructType(ASR::ttype_t* _type, llvm::Module* module, bool is_pointer) {
ASR::Struct_t* der_type;
if( ASR::is_a<ASR::StructType_t>(*_type) ) {
ASR::StructType_t* der = ASR::down_cast<ASR::StructType_t>(_type);
ASR::symbol_t* der_sym = ASRUtils::symbol_get_past_external(der->m_derived_type);
der_type = ASR::down_cast<ASR::Struct_t>(der_sym);
} else if( ASR::is_a<ASR::Class_t>(*_type) ) {
ASR::Class_t* der = ASR::down_cast<ASR::Class_t>(_type);
ASR::symbol_t* der_sym = ASRUtils::symbol_get_past_external(der->m_class_type);
der_type = ASR::down_cast<ASR::Struct_t>(der_sym);
} else {
LCOMPILERS_ASSERT(false);
return nullptr; // silence a warning
}
llvm::Type* type = getStructType(der_type, module, is_pointer);
LCOMPILERS_ASSERT(type != nullptr);
return type;
}
llvm::Type* LLVMUtils::getUnionType(ASR::UnionType_t* union_type,
llvm::Module* module, bool is_pointer) {
std::string union_type_name = std::string(union_type->m_name);
llvm::StructType* union_type_llvm = nullptr;
if( name2dertype.find(union_type_name) != name2dertype.end() ) {
union_type_llvm = name2dertype[union_type_name];
} else {
const std::map<std::string, ASR::symbol_t*>& scope = union_type->m_symtab->get_scope();
llvm::DataLayout data_layout(module);
llvm::Type* max_sized_type = nullptr;
size_t max_type_size = 0;
for( auto itr = scope.begin(); itr != scope.end(); itr++ ) {
ASR::Variable_t* member = ASR::down_cast<ASR::Variable_t>(ASRUtils::symbol_get_past_external(itr->second));
llvm::Type* llvm_mem_type = getMemberType(member->m_type, member, module);
size_t type_size = data_layout.getTypeAllocSize(llvm_mem_type);
if( max_type_size < type_size ) {
max_sized_type = llvm_mem_type;
type_size = max_type_size;
}
}
union_type_llvm = llvm::StructType::create(context, {max_sized_type}, union_type_name);
name2dertype[union_type_name] = union_type_llvm;
}
if( is_pointer ) {
return union_type_llvm->getPointerTo();
}
return (llvm::Type*) union_type_llvm;
}
llvm::Type* LLVMUtils::getUnionType(ASR::ttype_t* _type, llvm::Module* module, bool is_pointer) {
ASR::Union_t* union_ = ASR::down_cast<ASR::Union_t>(_type);
ASR::symbol_t* union_sym = ASRUtils::symbol_get_past_external(union_->m_union_type);
ASR::UnionType_t* union_type = ASR::down_cast<ASR::UnionType_t>(union_sym);
return getUnionType(union_type, module, is_pointer);
}
llvm::Type* LLVMUtils::getClassType(ASR::ClassType_t* der_type, bool is_pointer) {
const std::map<std::string, ASR::symbol_t*>& scope = der_type->m_symtab->get_scope();
std::vector<llvm::Type*> member_types;
int member_idx = 0;
for( auto itr = scope.begin(); itr != scope.end(); itr++ ) {
if (!ASR::is_a<ASR::ClassProcedure_t>(*itr->second) &&
!ASR::is_a<ASR::GenericProcedure_t>(*itr->second) &&
!ASR::is_a<ASR::CustomOperator_t>(*itr->second)) {
ASR::Variable_t* member = ASR::down_cast<ASR::Variable_t>(itr->second);
llvm::Type* mem_type = nullptr;
switch( member->m_type->type ) {
case ASR::ttypeType::Integer: {
int a_kind = ASR::down_cast<ASR::Integer_t>(member->m_type)->m_kind;
mem_type = getIntType(a_kind);
break;
}
case ASR::ttypeType::Real: {
int a_kind = ASR::down_cast<ASR::Real_t>(member->m_type)->m_kind;
mem_type = getFPType(a_kind);
break;
}
case ASR::ttypeType::Class: {
mem_type = getClassType(member->m_type);
break;
}
case ASR::ttypeType::Complex: {
int a_kind = ASR::down_cast<ASR::Complex_t>(member->m_type)->m_kind;
mem_type = getComplexType(a_kind);
break;
}
default:
throw CodeGenError("Cannot identify the type of member, '" +
std::string(member->m_name) +
"' in derived type, '" + der_type_name + "'.",
member->base.base.loc);
}
member_types.push_back(mem_type);
name2memidx[der_type_name][std::string(member->m_name)] = member_idx;
member_idx++;
}
}
llvm::StructType* der_type_llvm = llvm::StructType::create(context, member_types, der_type_name);
name2dertype[der_type_name] = der_type_llvm;
if( is_pointer ) {
return der_type_llvm->getPointerTo();
}
return (llvm::Type*) der_type_llvm;
}
llvm::Type* LLVMUtils::getClassType(ASR::Struct_t* der_type, bool is_pointer) {
std::string der_type_name = std::string(der_type->m_name) + std::string("_polymorphic");
llvm::StructType* der_type_llvm = nullptr;
if( name2dertype.find(der_type_name) != name2dertype.end() ) {
der_type_llvm = name2dertype[der_type_name];
}
LCOMPILERS_ASSERT(der_type_llvm != nullptr);
if( is_pointer ) {
return der_type_llvm->getPointerTo();
}
return (llvm::Type*) der_type_llvm;
}
llvm::Type* LLVMUtils::getClassType(ASR::ttype_t* _type, bool is_pointer) {
ASR::Class_t* der = ASR::down_cast<ASR::Class_t>(_type);
ASR::symbol_t* der_sym = ASRUtils::symbol_get_past_external(der->m_class_type);
std::string der_sym_name = ASRUtils::symbol_name(der_sym);
std::string der_type_name = der_sym_name + std::string("_polymorphic");
llvm::StructType* der_type_llvm;
if( name2dertype.find(der_type_name) != name2dertype.end() ) {
der_type_llvm = name2dertype[der_type_name];
} else {
std::vector<llvm::Type*> member_types;
member_types.push_back(getIntType(8));
if( der_sym_name == "~abstract_type" ) {
member_types.push_back(llvm::Type::getVoidTy(context)->getPointerTo());
} else if( ASR::is_a<ASR::ClassType_t>(*der_sym) ) {
ASR::ClassType_t* class_type_t = ASR::down_cast<ASR::ClassType_t>(der_sym);
member_types.push_back(getClassType(class_type_t, is_pointer));
} else if( ASR::is_a<ASR::Struct_t>(*der_sym) ) {
ASR::Struct_t* struct_type_t = ASR::down_cast<ASR::Struct_t>(der_sym);
member_types.push_back(getStructType(struct_type_t, module, is_pointer));
}
der_type_llvm = llvm::StructType::create(context, member_types, der_type_name);
name2dertype[der_type_name] = der_type_llvm;
}
return (llvm::Type*) der_type_llvm;
}
llvm::Type* LLVMUtils::getFPType(int a_kind, bool get_pointer) {
llvm::Type* type_ptr = nullptr;
if( get_pointer ) {
switch(a_kind)
{
case 4:
type_ptr = llvm::Type::getFloatPtrTy(context);
break;
case 8:
type_ptr = llvm::Type::getDoublePtrTy(context);
break;
default:
throw CodeGenError("Only 32 and 64 bits real kinds are supported.");
}
} else {
switch(a_kind)
{
case 4:
type_ptr = llvm::Type::getFloatTy(context);
break;
case 8:
type_ptr = llvm::Type::getDoubleTy(context);
break;
default:
throw CodeGenError("Only 32 and 64 bits real kinds are supported.");
}
}
return type_ptr;
}
llvm::Type* LLVMUtils::getComplexType(int a_kind, bool get_pointer) {
llvm::Type* type = nullptr;
switch(a_kind)
{
case 4:
type = complex_type_4;
break;
case 8:
type = complex_type_8;
break;
default:
throw CodeGenError("Only 32 and 64 bits complex kinds are supported.");
}
if( type != nullptr ) {
if( get_pointer ) {
return type->getPointerTo();
} else {
return type;
}
}
return nullptr;
}
llvm::Type* LLVMUtils::get_el_type(ASR::ttype_t* m_type_, llvm::Module* module) {
int a_kind = ASRUtils::extract_kind_from_ttype_t(m_type_);
llvm::Type* el_type = nullptr;
bool is_pointer = LLVM::is_llvm_pointer(*m_type_);
switch(ASRUtils::type_get_past_pointer(m_type_)->type) {
case ASR::ttypeType::Integer: {
el_type = getIntType(a_kind, is_pointer);
break;
}
case ASR::ttypeType::UnsignedInteger: {
el_type = getIntType(a_kind, is_pointer);
break;
}
case ASR::ttypeType::Real: {
el_type = getFPType(a_kind, is_pointer);
break;
}
case ASR::ttypeType::Complex: {
el_type = getComplexType(a_kind, is_pointer);
break;
}
case ASR::ttypeType::Logical: {
el_type = llvm::Type::getInt1Ty(context);
break;
}
case ASR::ttypeType::StructType: {
el_type = getStructType(m_type_, module);
break;
}
case ASR::ttypeType::Union: {
el_type = getUnionType(m_type_, module);
break;
}
case ASR::ttypeType::Class: {
el_type = getClassType(m_type_);
break;
}
case ASR::ttypeType::Character: {
el_type = character_type;
break;
}
default:
LCOMPILERS_ASSERT(false);
break;
}
return el_type;
}
int32_t get_type_size(ASR::ttype_t* asr_type, llvm::Type* llvm_type,
int32_t a_kind, llvm::Module* module) {
if( LLVM::is_llvm_struct(asr_type) ||
ASR::is_a<ASR::Character_t>(*asr_type) ||
ASR::is_a<ASR::Complex_t>(*asr_type) ) {
llvm::DataLayout data_layout(module);
return data_layout.getTypeAllocSize(llvm_type);
}
return a_kind;
}
llvm::Type* LLVMUtils::get_dict_type(ASR::ttype_t* asr_type, llvm::Module* module) {
ASR::Dict_t* asr_dict = ASR::down_cast<ASR::Dict_t>(asr_type);
bool is_local_array_type = false, is_local_malloc_array_type = false;
bool is_local_list = false;
ASR::dimension_t* local_m_dims = nullptr;
int local_n_dims = 0;
int local_a_kind = -1;
ASR::storage_typeType local_m_storage = ASR::storage_typeType::Default;
llvm::Type* key_llvm_type = get_type_from_ttype_t(asr_dict->m_key_type, nullptr, local_m_storage,
is_local_array_type, is_local_malloc_array_type,
is_local_list, local_m_dims, local_n_dims,
local_a_kind, module);
int32_t key_type_size = get_type_size(asr_dict->m_key_type, key_llvm_type, local_a_kind, module);
llvm::Type* value_llvm_type = get_type_from_ttype_t(asr_dict->m_value_type, nullptr, local_m_storage,
is_local_array_type, is_local_malloc_array_type,
is_local_list, local_m_dims, local_n_dims,
local_a_kind, module);
int32_t value_type_size = get_type_size(asr_dict->m_value_type, value_llvm_type, local_a_kind, module);
std::string key_type_code = ASRUtils::get_type_code(asr_dict->m_key_type);
std::string value_type_code = ASRUtils::get_type_code(asr_dict->m_value_type);
set_dict_api(asr_dict);
return dict_api->get_dict_type(key_type_code, value_type_code, key_type_size,
value_type_size, key_llvm_type, value_llvm_type);
}
llvm::Type* LLVMUtils::get_set_type(ASR::ttype_t* asr_type, llvm::Module* module) {
ASR::Set_t* asr_set = ASR::down_cast<ASR::Set_t>(asr_type);
bool is_local_array_type = false, is_local_malloc_array_type = false;
bool is_local_list = false;
ASR::dimension_t* local_m_dims = nullptr;
int local_n_dims = 0;
int local_a_kind = -1;
ASR::storage_typeType local_m_storage = ASR::storage_typeType::Default;
llvm::Type* el_llvm_type = get_type_from_ttype_t(asr_set->m_type, nullptr, local_m_storage,
is_local_array_type, is_local_malloc_array_type,
is_local_list, local_m_dims, local_n_dims,
local_a_kind, module);
int32_t el_type_size = get_type_size(asr_set->m_type, el_llvm_type, local_a_kind, module);
std::string el_type_code = ASRUtils::get_type_code(asr_set->m_type);
set_set_api(asr_set);
return set_api->get_set_type(el_type_code, el_type_size,
el_llvm_type);
}
llvm::Type* LLVMUtils::get_arg_type_from_ttype_t(ASR::ttype_t* asr_type,
ASR::symbol_t *type_declaration, ASR::abiType m_abi, ASR::abiType arg_m_abi,
ASR::storage_typeType m_storage, bool arg_m_value_attr, int& n_dims,
int& a_kind, bool& is_array_type, ASR::intentType arg_intent, llvm::Module* module,
bool get_pointer) {
llvm::Type* type = nullptr;
#define handle_llvm_pointers2() bool is_pointer_ = ASR::is_a<ASR::Class_t>(*t2) || \
(ASR::is_a<ASR::Character_t>(*t2) && arg_m_abi != ASR::abiType::BindC); \
type = get_arg_type_from_ttype_t(t2, nullptr, m_abi, arg_m_abi, \
m_storage, arg_m_value_attr, n_dims, a_kind, \
is_array_type, arg_intent, module, get_pointer); \
if( !is_pointer_ ) { \
type = type->getPointerTo(); \
} \
switch (asr_type->type) {
case ASR::ttypeType::Array: {
ASR::Array_t* v_type = ASR::down_cast<ASR::Array_t>(asr_type);
switch( v_type->m_physical_type ) {
case ASR::array_physical_typeType::DescriptorArray: {
is_array_type = true;
llvm::Type* el_type = get_el_type(v_type->m_type, module);
type = arr_api->get_array_type(asr_type, el_type, get_pointer);
break;
}
case ASR::array_physical_typeType::PointerToDataArray: {
type = nullptr;
if( ASR::is_a<ASR::Complex_t>(*v_type->m_type) ) {
ASR::Complex_t* complex_t = ASR::down_cast<ASR::Complex_t>(v_type->m_type);
type = getComplexType(complex_t->m_kind, true);
}
if( type == nullptr ) {
type = get_type_from_ttype_t_util(v_type->m_type, module, arg_m_abi)->getPointerTo();
}
break;
}
case ASR::array_physical_typeType::UnboundedPointerToDataArray: {
type = nullptr;
if( ASR::is_a<ASR::Complex_t>(*v_type->m_type) ) {
ASR::Complex_t* complex_t = ASR::down_cast<ASR::Complex_t>(v_type->m_type);
type = getComplexType(complex_t->m_kind, true);
}
if( type == nullptr ) {
type = get_type_from_ttype_t_util(v_type->m_type, module, arg_m_abi)->getPointerTo();
}
break;
}
case ASR::array_physical_typeType::FixedSizeArray: {
type = llvm::ArrayType::get(get_el_type(v_type->m_type, module),
ASRUtils::get_fixed_size_of_array(
v_type->m_dims, v_type->n_dims))->getPointerTo();
break;
}
case ASR::array_physical_typeType::CharacterArraySinglePointer: {
// type = character_type->getPointerTo();
// is_array_type = true;
// llvm::Type* el_type = get_el_type(v_type->m_type, module);
// type = arr_api->get_array_type(asr_type, el_type, get_pointer);
// break;
if (ASRUtils::is_fixed_size_array(v_type->m_dims, v_type->n_dims)) {
// llvm_type = character_type; -- @character_01.c = internal global i8* null
// llvm_type = character_type->getPointerTo(); -- @character_01.c = internal global i8** null
// llvm_type = llvm::ArrayType::get(character_type,
// ASRUtils::get_fixed_size_of_array(v_type->m_dims, v_type->n_dims))->getPointerTo();
// -- @character_01 = internal global [2 x i8*]* zeroinitializer
type = llvm::ArrayType::get(character_type,
ASRUtils::get_fixed_size_of_array(v_type->m_dims, v_type->n_dims));
break;
} else if (ASRUtils::is_dimension_empty(v_type->m_dims, v_type->n_dims)) {
// Treat it as a DescriptorArray
is_array_type = true;
llvm::Type* el_type = character_type;
type = arr_api->get_array_type(asr_type, el_type);
break;
} else {
LCOMPILERS_ASSERT(false);
break;
}
}
default: {
LCOMPILERS_ASSERT(false);
}
}
break;
}
case (ASR::ttypeType::Integer) : {
ASR::Integer_t* v_type = ASR::down_cast<ASR::Integer_t>(asr_type);
a_kind = v_type->m_kind;
if (arg_m_abi == ASR::abiType::BindC
&& arg_m_value_attr) {
type = getIntType(a_kind, false);
} else {
type = getIntType(a_kind, true);
}
break;
}
case (ASR::ttypeType::UnsignedInteger) : {
ASR::UnsignedInteger_t* v_type = ASR::down_cast<ASR::UnsignedInteger_t>(asr_type);
a_kind = v_type->m_kind;
if (arg_m_abi == ASR::abiType::BindC
&& arg_m_value_attr) {
type = getIntType(a_kind, false);
} else {
type = getIntType(a_kind, true);
}
break;
}
case (ASR::ttypeType::Pointer) : {
ASR::ttype_t *t2 = ASRUtils::type_get_past_pointer(asr_type);
handle_llvm_pointers2()
break;
}
case (ASR::ttypeType::Allocatable) : {
ASR::ttype_t *t2 = ASRUtils::type_get_past_allocatable(asr_type);
handle_llvm_pointers2()
break;
}
case (ASR::ttypeType::Real) : {
ASR::Real_t* v_type = ASR::down_cast<ASR::Real_t>(asr_type);
a_kind = v_type->m_kind;
if (arg_m_abi == ASR::abiType::BindC
&& arg_m_value_attr) {
type = getFPType(a_kind, false);
} else {
type = getFPType(a_kind, true);
}
break;
}
case (ASR::ttypeType::Complex) : {
ASR::Complex_t* v_type = ASR::down_cast<ASR::Complex_t>(asr_type);
a_kind = v_type->m_kind;
if (m_abi != ASR::abiType::BindC) {
type = getComplexType(a_kind, true);
} else {
if (arg_m_abi == ASR::abiType::BindC
&& arg_m_value_attr) {
if (a_kind == 4) {
if (compiler_options.platform == Platform::Windows) {
// type_fx2 is i64
llvm::Type* type_fx2 = llvm::Type::getInt64Ty(context);
type = type_fx2;
} else if (compiler_options.platform == Platform::macOS_ARM) {
// type_fx2 is [2 x float]
llvm::Type* type_fx2 = llvm::ArrayType::get(llvm::Type::getFloatTy(context), 2);
type = type_fx2;
} else {
// type_fx2 is <2 x float>
llvm::Type* type_fx2 = FIXED_VECTOR_TYPE::get(llvm::Type::getFloatTy(context), 2);
type = type_fx2;
}
} else {
LCOMPILERS_ASSERT(a_kind == 8)
if (compiler_options.platform == Platform::Windows) {
// 128 bit aggregate type is passed by reference
type = getComplexType(a_kind, true);
} else {
// Pass by value
type = getComplexType(a_kind, false);
}
}
} else {
type = getComplexType(a_kind, true);
}
}
break;
}
case (ASR::ttypeType::Character) : {
ASR::Character_t* v_type = ASR::down_cast<ASR::Character_t>(asr_type);
a_kind = v_type->m_kind;
if (arg_m_abi == ASR::abiType::BindC) {
type = character_type;
} else {
type = character_type->getPointerTo();
}
break;
}
case (ASR::ttypeType::Logical) : {
ASR::Logical_t* v_type = ASR::down_cast<ASR::Logical_t>(asr_type);
a_kind = v_type->m_kind;
if (arg_m_abi == ASR::abiType::BindC
&& arg_m_value_attr) {
type = llvm::Type::getInt1Ty(context);
} else {
type = llvm::Type::getInt1PtrTy(context);
}
break;
}
case (ASR::ttypeType::StructType) : {
type = getStructType(asr_type, module, true);
break;
}
case (ASR::ttypeType::Class) : {
type = getClassType(asr_type, true)->getPointerTo();
break;
}
case (ASR::ttypeType::CPtr) : {
type = llvm::Type::getVoidTy(context)->getPointerTo();
break;
}
case (ASR::ttypeType::Tuple) : {
type = get_type_from_ttype_t_util(asr_type, module)->getPointerTo();
break;
}
case (ASR::ttypeType::List) : {
bool is_array_type = false, is_malloc_array_type = false;
bool is_list = true;
ASR::dimension_t *m_dims = nullptr;
ASR::List_t* asr_list = ASR::down_cast<ASR::List_t>(asr_type);
llvm::Type* el_llvm_type = get_type_from_ttype_t(asr_list->m_type, nullptr, m_storage,
is_array_type,
is_malloc_array_type,
is_list, m_dims, n_dims,
a_kind, module, m_abi);
int32_t type_size = -1;
if( LLVM::is_llvm_struct(asr_list->m_type) ||
ASR::is_a<ASR::Character_t>(*asr_list->m_type) ||
ASR::is_a<ASR::Complex_t>(*asr_list->m_type) ) {
llvm::DataLayout data_layout(module);
type_size = data_layout.getTypeAllocSize(el_llvm_type);
} else {
type_size = a_kind;
}
std::string el_type_code = ASRUtils::get_type_code(asr_list->m_type);
type = list_api->get_list_type(el_llvm_type, el_type_code, type_size)->getPointerTo();
break;
}
case ASR::ttypeType::Enum: {
if (arg_m_abi == ASR::abiType::BindC
&& arg_m_value_attr) {
type = llvm::Type::getInt32Ty(context);
} else {
type = llvm::Type::getInt32PtrTy(context);
}
break ;
}
case (ASR::ttypeType::Dict): {
ASR::Dict_t* asr_dict = ASR::down_cast<ASR::Dict_t>(asr_type);
std::string key_type_code = ASRUtils::get_type_code(asr_dict->m_key_type);
std::string value_type_code = ASRUtils::get_type_code(asr_dict->m_value_type);
bool is_array_type = false, is_malloc_array_type = false;
bool is_list = false;
ASR::dimension_t* m_dims = nullptr;
llvm::Type* key_llvm_type = get_type_from_ttype_t(asr_dict->m_key_type, type_declaration, m_storage,
is_array_type,
is_malloc_array_type,
is_list, m_dims, n_dims,
a_kind, module, m_abi);
llvm::Type* value_llvm_type = get_type_from_ttype_t(asr_dict->m_value_type, type_declaration, m_storage,
is_array_type,
is_malloc_array_type,
is_list, m_dims, n_dims,
a_kind, module, m_abi);
int32_t key_type_size = get_type_size(asr_dict->m_key_type, key_llvm_type, a_kind, module);
int32_t value_type_size = get_type_size(asr_dict->m_value_type, value_llvm_type, a_kind, module);
set_dict_api(asr_dict);
type = dict_api->get_dict_type(key_type_code, value_type_code,
key_type_size, value_type_size,
key_llvm_type, value_llvm_type)->getPointerTo();
break;
}
case (ASR::ttypeType::Set): {
ASR::Set_t* asr_set = ASR::down_cast<ASR::Set_t>(asr_type);
std::string el_type_code = ASRUtils::get_type_code(asr_set->m_type);
bool is_array_type = false, is_malloc_array_type = false;
bool is_list = false;
ASR::dimension_t* m_dims = nullptr;
llvm::Type* el_llvm_type = get_type_from_ttype_t(asr_set->m_type, type_declaration, m_storage,
is_array_type,
is_malloc_array_type,
is_list, m_dims, n_dims,
a_kind, module, m_abi);
int32_t el_type_size = get_type_size(asr_set->m_type, el_llvm_type, a_kind, module);
set_set_api(asr_set);
type = set_api->get_set_type(el_type_code, el_type_size, el_llvm_type)->getPointerTo();
break;
}
case ASR::ttypeType::FunctionType: {
ASR::Function_t* fn = ASR::down_cast<ASR::Function_t>(
ASRUtils::symbol_get_past_external(type_declaration));
type = get_function_type(*fn, module)->getPointerTo();
break ;
}
default :
LCOMPILERS_ASSERT(false);
}
return type;
}
void LLVMUtils::set_dict_api(ASR::Dict_t* dict_type) {
if( ASR::is_a<ASR::Character_t>(*dict_type->m_key_type) ) {
dict_api = dict_api_sc;
} else {
dict_api = dict_api_lp;
}
}
void LLVMUtils::set_set_api(ASR::Set_t* /*set_type*/) {
// As per benchmarks, separate chaining
// does not provide significant gains over
// linear probing.
set_api = set_api_lp;
}
std::vector<llvm::Type*> LLVMUtils::convert_args(const ASR::Function_t& x, llvm::Module* module) {
std::vector<llvm::Type*> args;
for (size_t i=0; i<x.n_args; i++) {
if (ASR::is_a<ASR::Variable_t>(*ASRUtils::symbol_get_past_external(
ASR::down_cast<ASR::Var_t>(x.m_args[i])->m_v))) {
ASR::Variable_t *arg = ASRUtils::EXPR2VAR(x.m_args[i]);
LCOMPILERS_ASSERT(ASRUtils::is_arg_dummy(arg->m_intent));
// We pass all arguments as pointers for now,
// except bind(C) value arguments that are passed by value
llvm::Type *type = nullptr, *type_original = nullptr;
int n_dims = 0, a_kind = 4;
bool is_array_type = false;
type_original = get_arg_type_from_ttype_t(arg->m_type,
arg->m_type_declaration,
ASRUtils::get_FunctionType(x)->m_abi,
arg->m_abi, arg->m_storage, arg->m_value_attr,
n_dims, a_kind, is_array_type, arg->m_intent,
module, false);
if( is_array_type ) {
type = type_original->getPointerTo();
} else {
type = type_original;
}
if( arg->m_intent == ASRUtils::intent_out &&
ASR::is_a<ASR::CPtr_t>(*arg->m_type) ) {
type = type->getPointerTo();
}
std::uint32_t m_h;
std::string m_name = std::string(x.m_name);
if( x.class_type == ASR::symbolType::Function ) {
ASR::Function_t* _func = (ASR::Function_t*)(&(x.base));
m_h = get_hash((ASR::asr_t*)_func);
}
if( is_array_type && !LLVM::is_llvm_pointer(*arg->m_type) ) {
if( ASRUtils::get_FunctionType(x)->m_abi == ASR::abiType::Source ) {
llvm::Type* orig_type = type_original;
type = arr_api->get_argument_type(orig_type, m_h, arg->m_name, arr_arg_type_cache);
is_array_type = false;
} else if( ASRUtils::get_FunctionType(x)->m_abi == ASR::abiType::Intrinsic &&
fname2arg_type.find(m_name) != fname2arg_type.end()) {
type = fname2arg_type[m_name].second;
is_array_type = false;
}
}
args.push_back(type);
} else if (ASR::is_a<ASR::Function_t>(*ASRUtils::symbol_get_past_external(
ASR::down_cast<ASR::Var_t>(x.m_args[i])->m_v))) {
/* This is likely a procedure passed as an argument. For the
type, we need to pass in a function pointer with the
correct call signature. */
ASR::Function_t* fn = ASR::down_cast<ASR::Function_t>(
ASRUtils::symbol_get_past_external(ASR::down_cast<ASR::Var_t>(
x.m_args[i])->m_v));
llvm::Type* type = get_function_type(*fn, module)->getPointerTo();
args.push_back(type);
} else {
throw CodeGenError("Argument type not implemented");
}
}
return args;
}
llvm::FunctionType* LLVMUtils::get_function_type(const ASR::Function_t &x, llvm::Module* module) {
llvm::Type *return_type;
if (x.m_return_var) {
ASR::ttype_t *return_var_type0 = ASRUtils::EXPR2VAR(x.m_return_var)->m_type;
ASR::ttypeType return_var_type = return_var_type0->type;
switch (return_var_type) {
case (ASR::ttypeType::Integer) : {
int a_kind = ASR::down_cast<ASR::Integer_t>(return_var_type0)->m_kind;
return_type = getIntType(a_kind);
break;
}
case (ASR::ttypeType::UnsignedInteger) : {
int a_kind = ASR::down_cast<ASR::UnsignedInteger_t>(return_var_type0)->m_kind;
return_type = getIntType(a_kind);
break;
}
case (ASR::ttypeType::Real) : {
int a_kind = ASR::down_cast<ASR::Real_t>(return_var_type0)->m_kind;
return_type = getFPType(a_kind);
break;
}
case (ASR::ttypeType::Complex) : {
int a_kind = ASR::down_cast<ASR::Complex_t>(return_var_type0)->m_kind;
if (a_kind == 4) {
if (ASRUtils::get_FunctionType(x)->m_abi == ASR::abiType::BindC) {
if (compiler_options.platform == Platform::Windows) {
// i64
return_type = llvm::Type::getInt64Ty(context);
} else if (compiler_options.platform == Platform::macOS_ARM) {
// {float, float}
return_type = getComplexType(a_kind);
} else {
// <2 x float>
return_type = FIXED_VECTOR_TYPE::get(llvm::Type::getFloatTy(context), 2);
}
} else {
return_type = getComplexType(a_kind);
}
} else {
LCOMPILERS_ASSERT(a_kind == 8)
if (ASRUtils::get_FunctionType(x)->m_abi == ASR::abiType::BindC) {
if (compiler_options.platform == Platform::Windows) {
// pass as subroutine
return_type = getComplexType(a_kind, true);
std::vector<llvm::Type*> args = convert_args(x, module);
args.insert(args.begin(), return_type);
llvm::FunctionType *function_type = llvm::FunctionType::get(
llvm::Type::getVoidTy(context), args, false);
return function_type;
} else {
return_type = getComplexType(a_kind);
}
} else {
return_type = getComplexType(a_kind);