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Added support for comparing symbolic expressions #2374

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merged 3 commits into from
Oct 8, 2023
Merged

Added support for comparing symbolic expressions #2374

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9959316
Added support for comparing symbolic expressions
anutosh491 Oct 8, 2023
b50013b
Added tests
anutosh491 Oct 8, 2023
4ec4a76
Improved test cases
anutosh491 Oct 8, 2023
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143 changes: 143 additions & 0 deletions src/libasr/pass/replace_symbolic.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -626,6 +626,96 @@ class ReplaceSymbolicVisitor : public PassUtils::PassVisitor<ReplaceSymbolicVisi
return module_scope->get_symbol(name);
}

ASR::symbol_t* declare_basic_eq_function(Allocator& al, const Location& loc, SymbolTable* module_scope) {
std::string name = "basic_eq";
symbolic_dependencies.push_back(name);
if (!module_scope->get_symbol(name)) {
std::string header = "symengine/cwrapper.h";
SymbolTable* fn_symtab = al.make_new<SymbolTable>(module_scope);

Vec<ASR::expr_t*> args;
args.reserve(al, 1);
ASR::symbol_t* arg1 = ASR::down_cast<ASR::symbol_t>(ASR::make_Variable_t(
al, loc, fn_symtab, s2c(al, "_lpython_return_variable"), nullptr, 0, ASR::intentType::ReturnVar,
nullptr, nullptr, ASR::storage_typeType::Default, ASRUtils::TYPE(ASR::make_Logical_t(al, loc, 4)),
nullptr, ASR::abiType::BindC, ASR::Public, ASR::presenceType::Required, false));
fn_symtab->add_symbol(s2c(al, "_lpython_return_variable"), arg1);
ASR::symbol_t* arg2 = ASR::down_cast<ASR::symbol_t>(ASR::make_Variable_t(
al, loc, fn_symtab, s2c(al, "x"), nullptr, 0, ASR::intentType::In,
nullptr, nullptr, ASR::storage_typeType::Default, ASRUtils::TYPE(ASR::make_CPtr_t(al, loc)),
nullptr, ASR::abiType::BindC, ASR::Public, ASR::presenceType::Required, true));
fn_symtab->add_symbol(s2c(al, "x"), arg2);
args.push_back(al, ASRUtils::EXPR(ASR::make_Var_t(al, loc, arg2)));
ASR::symbol_t* arg3 = ASR::down_cast<ASR::symbol_t>(ASR::make_Variable_t(
al, loc, fn_symtab, s2c(al, "y"), nullptr, 0, ASR::intentType::In,
nullptr, nullptr, ASR::storage_typeType::Default, ASRUtils::TYPE(ASR::make_CPtr_t(al, loc)),
nullptr, ASR::abiType::BindC, ASR::Public, ASR::presenceType::Required, true));
fn_symtab->add_symbol(s2c(al, "y"), arg3);
args.push_back(al, ASRUtils::EXPR(ASR::make_Var_t(al, loc, arg3)));

Vec<ASR::stmt_t*> body;
body.reserve(al, 1);

Vec<char*> dep;
dep.reserve(al, 1);

ASR::expr_t* return_var = ASRUtils::EXPR(ASR::make_Var_t(al, loc, fn_symtab->get_symbol("_lpython_return_variable")));
ASR::asr_t* subrout = ASRUtils::make_Function_t_util(al, loc,
fn_symtab, s2c(al, name), dep.p, dep.n, args.p, args.n, body.p, body.n,
return_var, ASR::abiType::BindC, ASR::accessType::Public,
ASR::deftypeType::Interface, s2c(al, name), false, false, false,
false, false, nullptr, 0, false, false, false, s2c(al, header));
ASR::symbol_t* symbol = ASR::down_cast<ASR::symbol_t>(subrout);
module_scope->add_symbol(s2c(al, name), symbol);
}
return module_scope->get_symbol(name);
}

ASR::symbol_t* declare_basic_neq_function(Allocator& al, const Location& loc, SymbolTable* module_scope) {
std::string name = "basic_neq";
symbolic_dependencies.push_back(name);
if (!module_scope->get_symbol(name)) {
std::string header = "symengine/cwrapper.h";
SymbolTable* fn_symtab = al.make_new<SymbolTable>(module_scope);

Vec<ASR::expr_t*> args;
args.reserve(al, 1);
ASR::symbol_t* arg1 = ASR::down_cast<ASR::symbol_t>(ASR::make_Variable_t(
al, loc, fn_symtab, s2c(al, "_lpython_return_variable"), nullptr, 0, ASR::intentType::ReturnVar,
nullptr, nullptr, ASR::storage_typeType::Default, ASRUtils::TYPE(ASR::make_Logical_t(al, loc, 4)),
nullptr, ASR::abiType::BindC, ASR::Public, ASR::presenceType::Required, false));
fn_symtab->add_symbol(s2c(al, "_lpython_return_variable"), arg1);
ASR::symbol_t* arg2 = ASR::down_cast<ASR::symbol_t>(ASR::make_Variable_t(
al, loc, fn_symtab, s2c(al, "x"), nullptr, 0, ASR::intentType::In,
nullptr, nullptr, ASR::storage_typeType::Default, ASRUtils::TYPE(ASR::make_CPtr_t(al, loc)),
nullptr, ASR::abiType::BindC, ASR::Public, ASR::presenceType::Required, true));
fn_symtab->add_symbol(s2c(al, "x"), arg2);
args.push_back(al, ASRUtils::EXPR(ASR::make_Var_t(al, loc, arg2)));
ASR::symbol_t* arg3 = ASR::down_cast<ASR::symbol_t>(ASR::make_Variable_t(
al, loc, fn_symtab, s2c(al, "y"), nullptr, 0, ASR::intentType::In,
nullptr, nullptr, ASR::storage_typeType::Default, ASRUtils::TYPE(ASR::make_CPtr_t(al, loc)),
nullptr, ASR::abiType::BindC, ASR::Public, ASR::presenceType::Required, true));
fn_symtab->add_symbol(s2c(al, "y"), arg3);
args.push_back(al, ASRUtils::EXPR(ASR::make_Var_t(al, loc, arg3)));

Vec<ASR::stmt_t*> body;
body.reserve(al, 1);

Vec<char*> dep;
dep.reserve(al, 1);

ASR::expr_t* return_var = ASRUtils::EXPR(ASR::make_Var_t(al, loc, fn_symtab->get_symbol("_lpython_return_variable")));
ASR::asr_t* subrout = ASRUtils::make_Function_t_util(al, loc,
fn_symtab, s2c(al, name), dep.p, dep.n, args.p, args.n, body.p, body.n,
return_var, ASR::abiType::BindC, ASR::accessType::Public,
ASR::deftypeType::Interface, s2c(al, name), false, false, false,
false, false, nullptr, 0, false, false, false, s2c(al, header));
ASR::symbol_t* symbol = ASR::down_cast<ASR::symbol_t>(subrout);
module_scope->add_symbol(s2c(al, name), symbol);
}
return module_scope->get_symbol(name);
}

ASR::expr_t* process_attributes(Allocator &al, const Location &loc, ASR::expr_t* expr,
SymbolTable* module_scope) {
if (ASR::is_a<ASR::IntrinsicScalarFunction_t>(*expr)) {
Expand Down Expand Up @@ -772,6 +862,33 @@ class ReplaceSymbolicVisitor : public PassUtils::PassVisitor<ReplaceSymbolicVisi
}
}
}
} else if (ASR::is_a<ASR::SymbolicCompare_t>(*x.m_value)) {
ASR::SymbolicCompare_t *s = ASR::down_cast<ASR::SymbolicCompare_t>(x.m_value);
if (s->m_op == ASR::cmpopType::Eq || s->m_op == ASR::cmpopType::NotEq) {
ASR::symbol_t* sym = nullptr;
if (s->m_op == ASR::cmpopType::Eq) {
sym = declare_basic_eq_function(al, x.base.base.loc, module_scope);
} else {
sym = declare_basic_neq_function(al, x.base.base.loc, module_scope);
}
ASR::expr_t* value1 = handle_argument(al, x.base.base.loc, s->m_left);
ASR::expr_t* value2 = handle_argument(al, x.base.base.loc, s->m_right);

Vec<ASR::call_arg_t> call_args;
call_args.reserve(al, 1);
ASR::call_arg_t call_arg1, call_arg2;
call_arg1.loc = x.base.base.loc;
call_arg1.m_value = value1;
call_args.push_back(al, call_arg1);
call_arg2.loc = x.base.base.loc;
call_arg2.m_value = value2;
call_args.push_back(al, call_arg2);

ASR::expr_t* function_call = ASRUtils::EXPR(ASRUtils::make_FunctionCall_t_util(al, x.base.base.loc,
sym, sym, call_args.p, call_args.n, ASRUtils::TYPE(ASR::make_Logical_t(al, x.base.base.loc, 4)), nullptr, nullptr));
ASR::stmt_t* stmt = ASRUtils::STMT(ASR::make_Assignment_t(al, x.base.base.loc, x.m_target, function_call, nullptr));
pass_result.push_back(al, stmt);
}
}
}

Expand Down Expand Up @@ -905,6 +1022,32 @@ class ReplaceSymbolicVisitor : public PassUtils::PassVisitor<ReplaceSymbolicVisi
basic_str_sym, basic_str_sym, call_args.p, call_args.n,
ASRUtils::TYPE(ASR::make_Character_t(al, x.base.base.loc, 1, -2, nullptr)), nullptr, nullptr));
print_tmp.push_back(function_call);
} else if (ASR::is_a<ASR::SymbolicCompare_t>(*val)) {
ASR::SymbolicCompare_t *s = ASR::down_cast<ASR::SymbolicCompare_t>(val);
if (s->m_op == ASR::cmpopType::Eq || s->m_op == ASR::cmpopType::NotEq) {
ASR::symbol_t* sym = nullptr;
if (s->m_op == ASR::cmpopType::Eq) {
sym = declare_basic_eq_function(al, x.base.base.loc, module_scope);
} else {
sym = declare_basic_neq_function(al, x.base.base.loc, module_scope);
}
ASR::expr_t* value1 = handle_argument(al, x.base.base.loc, s->m_left);
ASR::expr_t* value2 = handle_argument(al, x.base.base.loc, s->m_right);

Vec<ASR::call_arg_t> call_args;
call_args.reserve(al, 1);
ASR::call_arg_t call_arg1, call_arg2;
call_arg1.loc = x.base.base.loc;
call_arg1.m_value = value1;
call_args.push_back(al, call_arg1);
call_arg2.loc = x.base.base.loc;
call_arg2.m_value = value2;
call_args.push_back(al, call_arg2);

ASR::expr_t* function_call = ASRUtils::EXPR(ASRUtils::make_FunctionCall_t_util(al, x.base.base.loc,
sym, sym, call_args.p, call_args.n, ASRUtils::TYPE(ASR::make_Logical_t(al, x.base.base.loc, 4)), nullptr, nullptr));
print_tmp.push_back(function_call);
}
} else {
print_tmp.push_back(x.m_values[i]);
}
Expand Down
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