LFortran Development Status¶

This page documents what Fortran features are supported by LFortran. For each feature we list a short description, the filename with the test and current status for each parts of the compiler:

AST: The code can be parsed to AST (lfortran --show-ast test.f90)
ASR: The code can be transformed to ASR (lfortran --show-asr test.f90)
LLVM: LFortran can generate LLVM IR (lfortran --show-llvm test.f90)
BIN: The LLVM IR can compile to a binary
RUN: The binary runs without errors

If all are green it means the feature fully works and you can use it in your codes. Otherwise you can see what the status is of each feature.

This page is generated automatically using the Compiler Tester repository which contains all the Fortran tests and scripts to run LFortran to produce the tables below. We are looking for contributors to contribute more tests. Our goal is to have a comprehensive Fortran testsuite that can be used to test any Fortran compiler.

Testing the LFortran compiler version:

$ lfortran --version
LFortran version: 0.12.0-491-gaf48ff273
Platform: macOS
Default target: x86_64-apple-darwin20.3.0

Topics¶

Full programs that compute something interesting¶

Basic Numerics¶

Directory: tests/programs/numerics

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`Pure Fortran sin(x) implementation`	✅	✅	✅	✅	✅	t01_sin_implementation.f90

Модули¶

Basic Usage¶

Directory: tests/modules/basic

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`Basic modules`	✅	✅	✅	✅	✅	t01.f90

Module Functions and Subroutines¶

Directory: tests/modules/procedures

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`Module functions`	✅	✅	✅	✅	✅	t01.f90
`Module subroutines`	✅	✅	✅	✅	✅	t02.f90
`Nested subroutines`	✅	✅	✅	✅	✅	t03.f90

Выражения¶

Arithmetic Operations¶

Directory: tests/expressions/arit

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`+,-,,/,*`	✅	✅	✅	✅	✅	basic_operations.f90

Integers¶

Directory: tests/expressions/integers

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`integers`	✅	✅	✅	✅	✅	integer_kind.f90
`relational operations`	✅	✅	✅	✅	✅	t01_rel_operations.f90
`logical operations`	✅	✅	✅	✅	✅	t02_logical_operations.f90

Real Numbers¶

Directory: tests/expressions/reals

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`single/double reals`	✅	✅	✅	✅	✅	real_kind.f90
`defined operator`	✅	❌	❌	❌	❌	t01_def_op.f90

Complex Numbers¶

Directory: tests/expressions/complex

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`single/double complex`	✅	✅	✅	✅	✅	complex_kind.f90

Strings¶

Directory: tests/expressions/character

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`character`	✅	✅	✅	✅	✅	t01_character.f90
`string concatenation`	✅	✅	✅	✅	✅	t02_concat_operation.f90

Производные типы данных¶

Directory: tests/expressions/derived_type

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`basic derived types`	✅	✅	✅	✅	✅	t01_derived_type.f90

Statements¶

Allocate Statement¶

Directory: tests/statements/allocate

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`allocate statement`	✅	✅	✅	✅	✅	t01.f90

Block Statement¶

Directory: tests/statements/block

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`block statement`	✅	❌	❌	❌	❌	t01.f90

Goto Statement¶

Directory: tests/statements/goto

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`computed go-to statement`	✅	❌	❌	❌	❌	t01.f90
`go-to statement`	✅	❌	❌	❌	❌	t02.f90

If Statement¶

Directory: tests/statements/if

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`Test .false.`	✅	✅	✅	✅	✅	if_01.f90
`single line if statement`	✅	✅	✅	✅	✅	if_02.f90
`multi line if statement`	✅	✅	✅	✅	✅	if_03.f90
`nested if statements`	✅	✅	✅	✅	✅	if_04.f90

While Statement¶

Directory: tests/statements/while

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`Simple while loops`	✅	✅	✅	✅	✅	while_01.f90
`exit / cycle in while loops`	✅	✅	✅	✅	✅	while_02.f90

Print Statement¶

Directory: tests/statements/print

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`Basic print`	✅	✅	✅	✅	✅	t01.f90

Open, Read, Write, Close Statement¶

Directory: tests/statements/file_io

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`open/read/write/close`	✅	✅	❌	❌	❌	t01.f90

Intrinsic Functions¶

abs¶

Directory: tests/intrinsic/abs

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	❌	❌	❌	❌	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

exp¶

Directory: tests/intrinsic/exp

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

log¶

Directory: tests/intrinsic/log

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

sqrt¶

Directory: tests/intrinsic/sqrt

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	❌	❌	❌	❌	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

sin¶

Directory: tests/intrinsic/sin

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	❌	❌	❌	❌	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

cos¶

Directory: tests/intrinsic/cos

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

tan¶

Directory: tests/intrinsic/tan

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

sinh¶

Directory: tests/intrinsic/sinh

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

cosh¶

Directory: tests/intrinsic/cosh

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

tanh¶

Directory: tests/intrinsic/tanh

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

asin¶

Directory: tests/intrinsic/asin

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

acos¶

Directory: tests/intrinsic/acos

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

atan¶

Directory: tests/intrinsic/atan

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90
`scalar single/double complex`	✅	✅	✅	✅	✅	t02_scalar_complex.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

modulo¶

Directory: tests/intrinsic/modulo

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	❌	❌	❌	❌	t01_scalar_real.f90
`array 1D single/double real`	✅	✅	❌	❌	❌	t03_array1d_real.f90

mod¶

Directory: tests/intrinsic/mod

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	❌	❌	❌	❌	t01_scalar_real.f90
`array 1D single/double real`	✅	❌	❌	❌	❌	t03_array1d_real.f90

min¶

Directory: tests/intrinsic/min

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	❌	❌	❌	t01_scalar_real.f90

max¶

Directory: tests/intrinsic/max

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	❌	❌	❌	t01_scalar_real.f90

int¶

Directory: tests/intrinsic/int

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	❌	❌	❌	❌	t01_scalar_real.f90

real¶

Directory: tests/intrinsic/real

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	✅	✅	✅	✅	t01_scalar_real.f90

floor¶

Directory: tests/intrinsic/floor

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	❌	❌	❌	❌	t01_scalar_real.f90

nint¶

Directory: tests/intrinsic/nint

Описание	AST	ASR	LLVM	BIN	RUN	Filename
`scalar single/double real`	✅	❌	❌	❌	❌	t01_scalar_real.f90