Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Implemented Lshift #2556

Draft
wants to merge 3 commits into
base: main
Choose a base branch
from
Draft

Implemented Lshift #2556

Show file tree
Hide file tree
Changes from 2 commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
3d37a9a
implemented lshift
Kishan-Ved Feb 26, 2024
9a90e0c
integration test added
Kishan-Ved Feb 27, 2024
8b461af
updated
Kishan-Ved Mar 7, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 1 addition & 0 deletions integration_tests/CMakeLists.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -816,6 +816,7 @@ RUN(NAME callback_04 IMPORT_PATH .. LABELS cpython)
# Intrinsic Functions
RUN(NAME intrinsics_01 LABELS cpython llvm NOFAST) # any
RUN(NAME intrinsics_02 LABELS cpython llvm c) # floordiv
RUN(NAME intrinsics_03 LABELS llvm) # lshift
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
RUN(NAME intrinsics_03 LABELS llvm) # lshift
RUN(NAME intrinsics_03 LABELS cpython llvm) # lshift

This verifies that the test works with python as well.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please check the comment below: #2556 (comment)


# lpython decorator
RUN(NAME lpython_decorator_01 LABELS cpython)
Expand Down
12 changes: 12 additions & 0 deletions integration_tests/intrinsics_03.py
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
from lpython import i32

a : i32
b : i32

a = 5
b = 2
print(lshift(a,b))
assert(lshift(a,b) == a<<b)

print(lshift(5,2))
assert(lshift(5,2) == 5<<2)
82 changes: 82 additions & 0 deletions src/libasr/pass/intrinsic_function_registry.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,7 @@ enum class IntrinsicScalarFunctions : int64_t {
FMA,
FlipSign,
Mod,
LShift,
Trailz,
FloorDiv,
ListIndex,
Expand Down Expand Up @@ -122,6 +123,7 @@ inline std::string get_intrinsic_name(int x) {
INTRINSIC_NAME_CASE(FlipSign)
INTRINSIC_NAME_CASE(FloorDiv)
INTRINSIC_NAME_CASE(Mod)
INTRINSIC_NAME_CASE(LShift)
INTRINSIC_NAME_CASE(Trailz)
INTRINSIC_NAME_CASE(ListIndex)
INTRINSIC_NAME_CASE(Partition)
Expand Down Expand Up @@ -2382,6 +2384,81 @@ namespace Mod {

} // namespace Mod

#define i_BitRshift(n, bits, t) EXPR(ASR::make_IntegerBinOp_t(al, loc, \
n, ASR::binopType::BitRShift, bits, t, nullptr))
#define i_BitLshift(n, bits, t) EXPR(ASR::make_IntegerBinOp_t(al, loc, \
n, ASR::binopType::BitLShift, bits, t, nullptr))
Kishan-Ved marked this conversation as resolved.
Show resolved Hide resolved

namespace LShift {

static inline void verify_args(const ASR::IntrinsicScalarFunction_t& x, diag::Diagnostics& diagnostics) {
ASRUtils::require_impl(x.n_args == 2,
"ASR Verify: Call to LShift must have exactly 2 arguments",
x.base.base.loc, diagnostics);
ASR::ttype_t *type1 = ASRUtils::expr_type(x.m_args[0]);
ASR::ttype_t *type2 = ASRUtils::expr_type(x.m_args[1]);
ASRUtils::require_impl((is_integer(*type1) && is_integer(*type2)),
"ASR Verify: Arguments to LShift must be of integer type",
x.base.base.loc, diagnostics);
}

static ASR::expr_t *eval_LShift(Allocator &al, const Location &loc,
ASR::ttype_t* t1, Vec<ASR::expr_t*> &args) {
int64_t a = ASR::down_cast<ASR::IntegerConstant_t>(args[0])->m_n;
int64_t b = ASR::down_cast<ASR::IntegerConstant_t>(args[1])->m_n;
int64_t val = a << b;
return make_ConstantWithType(make_IntegerConstant_t, val, t1, loc);
Kishan-Ved marked this conversation as resolved.
Show resolved Hide resolved
}

static inline ASR::asr_t* create_LShift(Allocator& al, const Location& loc,
Vec<ASR::expr_t*>& args,
const std::function<void (const std::string &, const Location &)> err) {
if (args.size() != 2) {
err("Intrinsic LShift function accepts exactly 2 arguments", loc);
}
ASR::ttype_t *type1 = ASRUtils::expr_type(args[0]);
ASR::ttype_t *type2 = ASRUtils::expr_type(args[1]);
if (!((ASRUtils::is_integer(*type1) && ASRUtils::is_integer(*type2)))) {
err("Argument of the LShift function must be Integer",
args[0]->base.loc);
}
ASR::expr_t *m_value = nullptr;
if (all_args_evaluated(args)) {
Vec<ASR::expr_t*> arg_values; arg_values.reserve(al, 2);
arg_values.push_back(al, expr_value(args[0]));
arg_values.push_back(al, expr_value(args[1]));
m_value = eval_LShift(al, loc, expr_type(args[1]), arg_values);
}
return ASR::make_IntrinsicScalarFunction_t(al, loc,
static_cast<int64_t>(IntrinsicScalarFunctions::LShift),
args.p, args.n, 0, ASRUtils::expr_type(args[0]), m_value);
}

static inline ASR::expr_t* instantiate_LShift(Allocator &al, const Location &loc,
SymbolTable *scope, Vec<ASR::ttype_t*>& arg_types, ASR::ttype_t *return_type,
Vec<ASR::call_arg_t>& new_args, int64_t /*overload_id*/) {
declare_basic_variables("_lcompilers_lshift_" + type_to_str_python(arg_types[1]));
fill_func_arg("a", arg_types[0]);
fill_func_arg("p", arg_types[1]);
auto result = declare(fn_name, return_type, ReturnVar);
/*
function LShifti32i32(a, p) result(d)
integer(int32) :: a
integer(int32) :: b
result = a << b
return result
end function
*/
body.push_back(al, b.Assignment(result, i_BitLshift(args[0], args[1], arg_types[0])));

ASR::symbol_t *f_sym = make_ASR_Function_t(fn_name, fn_symtab, dep, args,
body, result, ASR::abiType::Source, ASR::deftypeType::Implementation, nullptr);
scope->add_symbol(fn_name, f_sym);
return b.Call(f_sym, new_args, return_type, nullptr);
}

} // namespace LShift

namespace Trailz {

static inline void verify_args(const ASR::IntrinsicScalarFunction_t& x, diag::Diagnostics& diagnostics) {
Expand Down Expand Up @@ -3665,6 +3742,8 @@ namespace IntrinsicScalarFunctionRegistry {
{&FloorDiv::instantiate_FloorDiv, &FloorDiv::verify_args}},
{static_cast<int64_t>(IntrinsicScalarFunctions::Mod),
{&Mod::instantiate_Mod, &Mod::verify_args}},
{static_cast<int64_t>(IntrinsicScalarFunctions::LShift),
{&LShift::instantiate_LShift, &LShift::verify_args}},
{static_cast<int64_t>(IntrinsicScalarFunctions::Trailz),
{&Trailz::instantiate_Trailz, &Trailz::verify_args}},
{static_cast<int64_t>(IntrinsicScalarFunctions::Abs),
Expand Down Expand Up @@ -3793,6 +3872,8 @@ namespace IntrinsicScalarFunctionRegistry {
"floordiv"},
{static_cast<int64_t>(IntrinsicScalarFunctions::Mod),
"mod"},
{static_cast<int64_t>(IntrinsicScalarFunctions::LShift),
"lshift"},
{static_cast<int64_t>(IntrinsicScalarFunctions::Trailz),
"trailz"},
{static_cast<int64_t>(IntrinsicScalarFunctions::Expm1),
Expand Down Expand Up @@ -3901,6 +3982,7 @@ namespace IntrinsicScalarFunctionRegistry {
{"fma", {&FMA::create_FMA, &FMA::eval_FMA}},
{"floordiv", {&FloorDiv::create_FloorDiv, &FloorDiv::eval_FloorDiv}},
{"mod", {&Mod::create_Mod, &Mod::eval_Mod}},
{"lshift", {&LShift::create_LShift, &LShift::eval_LShift}},
{"trailz", {&Trailz::create_Trailz, &Trailz::eval_Trailz}},
{"list.index", {&ListIndex::create_ListIndex, &ListIndex::eval_list_index}},
{"list.reverse", {&ListReverse::create_ListReverse, &ListReverse::eval_list_reverse}},
Expand Down
Loading