This commit is contained in:
Jeehoon Kang
2021-06-21 18:45:39 +00:00
parent 2d8d1e7fb4
commit 4535b2ef6f
28 changed files with 696 additions and 370 deletions

2
.github/bors.toml vendored Normal file
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delete_merged_branches = true
status = ["ci"]

36
.github/workflows/ci.yml vendored Normal file
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name: CI
on:
pull_request:
push:
branches:
- master
- staging
- trying
defaults:
run:
shell: bash
jobs:
ci:
name: ci
runs-on: [self-hosted, ubuntu-20.04]
steps:
- uses: actions/checkout@v2
- name: Install latest
uses: actions-rs/toolchain@v1
with:
profile: minimal
override: true
components: rust-src, rustfmt, clippy
- name: Rustfmt
run: cargo fmt --all -- --check
- name: Clippy
run: cargo clippy --all
- name: Check
run: cargo check --all
- name: Test (Debug)
run: RUST_MIN_STACK=8388608 cargo test -- --skip test_examples_asmgen
- name: Test (Release)
run: RUST_MIN_STACK=8388608 cargo test --release -- --skip test_examples_asmgen

47
.gitlab-ci.yml Normal file
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# Setup a cache to cache job parts between jobs to ensure faster builds
cache:
key: "$CI_JOB_NAME"
untracked: true
paths:
- $HOME/.cargo/
- target/
# Set any required environment variables here
variables:
RUST_BACKTRACE: "FULL"
image: "rust:latest"
stages:
- install
- test
install:
stage: install
script:
- rustup default stable
check:
stage: test
before_script:
- rustup component add rustfmt clippy
- cargo install cargo-audit
script:
- cargo check --verbose
- cargo fmt -- --check
- cargo clippy -- -D warnings
- cargo audit
debug:
stage: test
before_script:
- apt update && apt install -yy gcc-riscv64-linux-gnu g++-riscv64-linux-gnu qemu-user-static
script:
- RUST_MIN_STACK=8388608 cargo test
release:
stage: test
before_script:
- apt update && apt install -yy gcc-riscv64-linux-gnu g++-riscv64-linux-gnu qemu-user-static
script:
- RUST_MIN_STACK=8388608 cargo test --release

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version = "0.1.0"
authors = ["Chunmyong Park <chunmyong.park@kaist.ac.kr>", "Jeehoon Kang <jeehoon.kang@kaist.ac.kr>", "Hyunsu Kim <hyunsu.kim00@kaist.ac.kr>"]
authors = ["Chunmyong Park <chunmyong.park@kaist.ac.kr>", "Jeehoon Kang <jeehoon.kang@kaist.ac.kr>"]
edition = "2018"
default-run = "kecc"
@@ -18,19 +18,24 @@ path = "src/lib.rs"
[[bin]]
name = "kecc"
path = "bin/kecc.rs"
required-features = ["build-bin"]
[[bin]]
name = "fuzz"
path = "bin/fuzz.rs"
required-features = ["build-bin"]
[features]
build-bin = ["clap"]
[dependencies]
clap = { version = "2.33.0", features = ["yaml"] }
lang-c = "0.8.1"
itertools = "0.9.0"
failure = "0.1.7"
tempfile = "3.1.0"
ordered-float = "1.0"
clap = { version = "3.0.0-beta.2", features = ["yaml"], optional = true }
lang-c = "0.10.1"
itertools = "0.10.1"
failure = "0.1.8"
tempfile = "3.2.0"
ordered-float = "2.5.1"
hexf = "0.1.0"
wait-timeout = "0.2.0"
peg = "0.6.2"
rand = "0.7"
peg = "0.7.0"
rand = "0.8.4"

48
Jenkinsfile vendored
View File

@@ -1,48 +0,0 @@
def setupRust() {
sh "rustup component add rustfmt clippy"
sh "rustup install nightly"
sh "cargo update"
sh "cargo"
}
pipeline {
agent {
docker {
image 'rust:latest'
}
}
stages {
stage('Rustfmt') {
steps {
setupRust()
sh "cargo fmt --all -- --check"
}
}
stage('Clippy') {
steps {
setupRust()
sh "cargo clippy --all"
}
}
stage('Build') {
steps {
setupRust()
sh "cargo build"
sh "cargo build --release"
}
}
stage('Test') {
steps {
setupRust()
// When `cargo test` runs, the function `it_works()` is called in a new thread.
// The stack size of a new thread is `2 MiB` on Linux, and this small stack size
// can cause `stack-overflow` error when testing stack-intensive code.
// For this reason, we need to increase the default size of stack to `8 MiB`.
// TODO: delete `--skip test_examples_asmgen`
sh "RUST_MIN_STACK=8388608 cargo test -- --skip test_examples_asmgen"
sh "RUST_MIN_STACK=8388608 cargo test --release -- --skip test_examples_asmgen"
}
}
}
}

View File

@@ -16,15 +16,15 @@ cargo build --release # release build
## Run
```sh
cargo run -- -h # print options
cargo run -- -p examples/c/fibonacci.c # parse
cargo run -- -i examples/c/fibonacci.c # irgen
cargo run -- -O --iroutput examples/c/fibonacci.c # optimize
cargo run -- examples/c/fibonacci.c # compile
cargo run --features=build-bin -- -h # print options
cargo run --features=build-bin -- -p examples/c/fibonacci.c # parse
cargo run --features=build-bin -- -i examples/c/fibonacci.c # irgen
cargo run --features=build-bin -- -O --iroutput examples/c/fibonacci.c # optimize
cargo run --features=build-bin -- examples/c/fibonacci.c # compile
cargo run -- --irrun examples/c/fibonacci.c # interprets the IR
cargo run --features=build-bin -- --irrun examples/c/fibonacci.c # interprets the IR
cargo run --release -- examples/c/fibonacci.c # compile with release build
cargo run --features=build-bin --release -- examples/c/fibonacci.c # compile with release build
```
@@ -73,9 +73,8 @@ cat tests/test_reduced.c
### Install
```sh
# Ubuntu 18.04 or higher
apt install -y make cmake python3
apt install -y csmith libcsmith-dev creduce
# Ubuntu 20.04
sudo apt install -y make cmake python3 csmith libcsmith-dev creduce
```
### Run
@@ -113,8 +112,8 @@ reduces the program; check if the reduced program still fails on the test, and i
given program with the reduced one; repeat until you get a small enough buggy program. For more
information, we refer to the [Creduce](https://embed.cs.utah.edu/creduce/) homepage.
**[NOTICE]** The fuzzer supports Ubuntu 18.04 or 20.04 only. It may work for other platforms, but if it
doesn't, please run the fuzzer in Ubuntu 18.04 or 20.04.
**[NOTICE]** The fuzzer supports Ubuntu 20.04 only. It may work for other platforms, but if it
doesn't, please run the fuzzer in Ubuntu 20.04.
## Running RISC-V Binaries
@@ -122,18 +121,18 @@ doesn't, please run the fuzzer in Ubuntu 18.04 or 20.04.
### Install
```sh
# Ubuntu 20.04 or higher
apt install gcc-10-riscv64-linux-gnu g++-10-riscv64-linux-gnu qemu-user-static
# Ubuntu 20.04
sudo apt install gcc-riscv64-linux-gnu g++-riscv64-linux-gnu qemu-user-static
```
### Cross-Compilation and Architecture-Emulation
```sh
# Compile C source code into RISC-V assembly
riscv64-linux-gnu-gcc-10 hello.c -S -o hello.S
riscv64-linux-gnu-gcc hello.c -S -o hello.S
# Link to an RISC-V executable
riscv64-linux-gnu-gcc-10 -static hello.S -o hello
riscv64-linux-gnu-gcc -static hello.S -o hello
# Emulate the executable
qemu-riscv64-static ./hello

View File

@@ -1,5 +1,5 @@
CC=riscv64-linux-gnu-gcc-10
CXX=riscv64-linux-gnu-g++-10
CC=riscv64-linux-gnu-gcc
CXX=riscv64-linux-gnu-g++
KECC=../target/release/kecc
CFLAGS=-O
RM=rm -f

7
bench/remote.sh Executable file
View File

@@ -0,0 +1,7 @@
#!/usr/bin/env bash
set -e
sshpass -p 'sifive' scp bench-gcc hifiveu:/mnt/home/runner/cs420-final/bench-gcc
sshpass -p 'sifive' ssh hifiveu /usr/sbin/chroot /mnt "chown runner:runner /home/runner/cs420-final/bench-gcc"
sshpass -p 'sifive' ssh hifiveu /usr/sbin/chroot /mnt /bin/su - runner -c "/home/runner/cs420-final/bench-gcc"

View File

@@ -1,6 +1,4 @@
#[macro_use]
extern crate clap;
use clap::{crate_authors, crate_description, crate_version, App};
use clap::{crate_authors, crate_description, crate_version, load_yaml, App};
extern crate kecc;
@@ -9,7 +7,7 @@ use std::path::Path;
fn main() {
let yaml = load_yaml!("fuzz_cli.yml");
#[allow(deprecated)]
let matches = App::from_yaml(yaml)
let matches = App::from(yaml)
.version(crate_version!())
.about(crate_description!())
.author(crate_authors!(", "))

View File

@@ -1,8 +1,7 @@
use std::ffi::OsStr;
use std::path::Path;
#[macro_use]
extern crate clap;
use clap::{crate_authors, crate_description, crate_version, App};
use clap::{crate_authors, crate_description, crate_version, load_yaml, App};
use lang_c::ast::TranslationUnit;
@@ -17,7 +16,7 @@ use kecc::{
fn main() {
let yaml = load_yaml!("kecc_cli.yml");
#[allow(deprecated)]
let matches = App::from_yaml(yaml)
let matches = App::from(yaml)
.version(crate_version!())
.about(crate_description!())
.author(crate_authors!(", "))
@@ -26,7 +25,7 @@ fn main() {
let input = matches.value_of("INPUT").unwrap();
let input = Path::new(input);
let output = matches.value_of("output").unwrap_or_else(|| "-");
let output = matches.value_of("output").unwrap_or("-");
let mut output: Box<dyn ::std::io::Write> = if output == "-" {
Box::new(::std::io::stdout())
} else {
@@ -48,7 +47,7 @@ fn main() {
fn compile_c(
input: &TranslationUnit,
output: &mut dyn ::std::io::Write,
matches: &clap::ArgMatches<'_>,
matches: &clap::ArgMatches,
) {
if matches.is_present("parse") {
return;
@@ -78,7 +77,7 @@ fn compile_c(
fn compile_ir(
input: &mut ir::TranslationUnit,
output: &mut dyn ::std::io::Write,
matches: &clap::ArgMatches<'_>,
matches: &clap::ArgMatches,
) {
if matches.is_present("irparse") {
return;

View File

@@ -1,2 +0,0 @@
status = [ "continuous-integration/jenkins/branch" ]
delete_merged_branches = true

View File

@@ -1 +1 @@
1.44.0
1.53.0

View File

@@ -5,7 +5,7 @@ use crate::ir;
use core::convert::TryFrom;
#[derive(Debug, Clone, PartialEq)]
pub struct TODO {}
pub struct Todo {}
/// TODO
#[derive(Debug, Clone, PartialEq)]
@@ -616,9 +616,9 @@ impl Immediate {
#[derive(Debug, Clone, PartialEq)]
pub enum RelocationFunction {
/// %hi
HI20,
Hi20,
/// %lo
LO12,
Lo12,
}
/// `Label` is used as branch, unconditional jump targets and symbol offsets.
@@ -676,17 +676,11 @@ impl TryFrom<ir::Dtype> for DataSize {
impl DataSize {
pub fn is_integer(&self) -> bool {
match self {
Self::Byte | Self::Half | Self::Word | Self::Double => true,
_ => false,
}
matches!(self, Self::Byte | Self::Half | Self::Word | Self::Double)
}
pub fn is_floating_point(&self) -> bool {
match self {
Self::SinglePrecision | Self::DoublePrecision => true,
_ => false,
}
matches!(self, Self::SinglePrecision | Self::DoublePrecision)
}
fn word(self) -> Option<Self> {

View File

@@ -434,8 +434,8 @@ impl WriteString for Immediate {
impl WriteString for RelocationFunction {
fn write_string(&self) -> String {
match self {
Self::HI20 => "%hi",
Self::LO12 => "%lo",
Self::Hi20 => "%hi",
Self::Lo12 => "%lo",
}
.to_string()
}

View File

@@ -79,7 +79,7 @@ impl IsEquiv for DeclaratorKind {
(Self::Identifier(identifier), Self::Identifier(other_identifier)) => {
identifier.node.name == other_identifier.node.name
}
(Self::Declarator(decl), Self::Declarator(other_decl)) => decl.is_equiv(&other_decl),
(Self::Declarator(decl), Self::Declarator(other_decl)) => decl.is_equiv(other_decl),
_ => false,
}
}
@@ -104,7 +104,7 @@ impl IsEquiv for DerivedDeclarator {
params.is_equiv(other_params)
}
(Self::KRFunction(kr_func_decl), Self::KRFunction(other_kr_func_decl)) => {
kr_func_decl.is_equiv(&other_kr_func_decl)
kr_func_decl.is_equiv(other_kr_func_decl)
}
_ => false,
}
@@ -128,10 +128,10 @@ impl IsEquiv for ArraySize {
(Self::Unknown, Self::Unknown) => true,
(Self::VariableUnknown, Self::VariableUnknown) => true,
(Self::VariableExpression(expr), Self::VariableExpression(other_expr)) => {
expr.is_equiv(&other_expr)
expr.is_equiv(other_expr)
}
(Self::StaticExpression(expr), Self::StaticExpression(other_expr)) => {
expr.is_equiv(&other_expr)
expr.is_equiv(other_expr)
}
_ => false,
}
@@ -492,6 +492,7 @@ impl IsEquiv for Enumerator {
impl IsEquiv for TypeQualifier {
fn is_equiv(&self, other: &Self) -> bool {
#[allow(clippy::match_like_matches_macro)]
match (self, other) {
(Self::Const, Self::Const) => true,
_ => false,

View File

@@ -8,6 +8,7 @@ use lang_c::span::Node;
use crate::utils::AssertSupported;
use crate::Translate;
/// TODO(document)
#[derive(Debug)]
pub enum Error {
ParseError(ParseError),
@@ -15,7 +16,8 @@ pub enum Error {
Unsupported,
}
#[derive(Default)]
/// TODO(document)
#[derive(Default, Debug)]
pub struct Parse {}
impl<P: AsRef<Path>> Translate<P> for Parse {
@@ -182,7 +184,7 @@ impl AssertSupported for AlignmentSpecifier {
fn assert_supported(&self) {
match self {
Self::Type(typename) => typename.assert_supported(),
Self::Constant(_) => panic!(AlignmentSpecifier::Constant),
Self::Constant(_) => std::panic::panic_any(AlignmentSpecifier::Constant),
}
}
}
@@ -225,7 +227,7 @@ impl AssertSupported for DerivedDeclarator {
Self::Array(array_decl) => array_decl.assert_supported(),
Self::Function(func_decl) => func_decl.assert_supported(),
// Support when K&R function has no parameter
Self::KRFunction(kr_func_decl) => assert_eq!(true, kr_func_decl.is_empty()),
Self::KRFunction(kr_func_decl) => assert!(kr_func_decl.is_empty()),
}
}
}
@@ -513,6 +515,7 @@ impl AssertSupported for SpecifierQualifier {
match self {
Self::TypeSpecifier(type_specifier) => type_specifier.assert_supported(),
Self::TypeQualifier(type_qualifier) => type_qualifier.assert_supported(),
Self::Extension(_) => panic!("SpecifierQualifier::Extension"),
}
}
}
@@ -551,14 +554,14 @@ impl AssertSupported for Constant {
impl AssertSupported for Integer {
fn assert_supported(&self) {
assert_eq!(false, self.suffix.imaginary);
assert!(!self.suffix.imaginary);
}
}
impl AssertSupported for Float {
fn assert_supported(&self) {
self.suffix.format.assert_supported();
assert_eq!(false, self.suffix.imaginary);
assert!(!self.suffix.imaginary);
}
}

View File

@@ -12,14 +12,20 @@ use itertools::izip;
use crate::ir::*;
use crate::some_or;
/// TODO(document)
#[derive(Debug, PartialEq, Fail)]
pub enum DtypeError {
/// For uncommon error
#[fail(display = "{}", message)]
Misc { message: String },
Misc {
/// TODO(document)
message: String,
},
}
/// TODO(document)
pub trait HasDtype {
/// TODO(document)
fn dtype(&self) -> Dtype;
}
@@ -34,40 +40,77 @@ struct BaseDtype {
is_typedef: bool,
}
/// TODO(document)
#[derive(Debug, PartialEq, Eq, Hash, Clone)]
pub enum Dtype {
/// TODO(document)
Unit {
/// TODO(document)
is_const: bool,
},
/// TODO(document)
Int {
/// TODO(document)
width: usize,
/// TODO(document)
is_signed: bool,
/// TODO(document)
is_const: bool,
},
/// TODO(document)
Float {
/// TODO(document)
width: usize,
/// TODO(document)
is_const: bool,
},
/// TODO(document)
Pointer {
/// TODO(document)
inner: Box<Dtype>,
/// TODO(document)
is_const: bool,
},
/// TODO(document)
Array {
/// TODO(document)
inner: Box<Dtype>,
/// TODO(document)
size: usize,
},
/// TODO(document)
Struct {
/// TODO(document)
name: Option<String>,
/// TODO(document)
fields: Option<Vec<Named<Dtype>>>,
/// TODO(document)
is_const: bool,
/// TODO(document)
size_align_offsets: Option<(usize, usize, Vec<usize>)>,
},
/// TODO(document)
Function {
/// TODO(document)
ret: Box<Dtype>,
/// TODO(document)
params: Vec<Dtype>,
},
/// TODO(document)
Typedef {
/// TODO(document)
name: String,
/// TODO(document)
is_const: bool,
},
}
@@ -201,6 +244,7 @@ impl BaseDtype {
ast::SpecifierQualifier::TypeQualifier(type_qualifier) => {
self.apply_type_qualifier(&type_qualifier.node)?
}
ast::SpecifierQualifier::Extension(_) => panic!("unsupported specifier qualifier"),
}
Ok(())
@@ -464,40 +508,73 @@ impl TryFrom<&ast::ParameterDeclaration> for Dtype {
}
impl Dtype {
/// TODO(document)
pub const BITS_OF_BYTE: usize = 8;
/// TODO(document)
pub const SIZE_OF_BYTE: usize = 1;
/// TODO(document)
// TODO: consider architecture dependency (current: 64-bit architecture)
pub const SIZE_OF_POINTER: usize = 8;
/// TODO(document)
pub const SIZE_OF_CHAR: usize = 1;
/// TODO(document)
pub const SIZE_OF_SHORT: usize = 2;
/// TODO(document)
pub const SIZE_OF_INT: usize = 4;
/// TODO(document)
pub const SIZE_OF_LONG: usize = 8;
/// TODO(document)
pub const SIZE_OF_LONGLONG: usize = 8;
/// TODO(document)
pub const SIZE_OF_FLOAT: usize = 4;
/// TODO(document)
pub const SIZE_OF_DOUBLE: usize = 8;
/// TODO(document)
// signed option cannot be applied to boolean value
pub const BOOL: Self = Self::Int {
width: 1,
is_signed: false,
is_const: false,
};
/// TODO(document)
pub const CHAR: Self = Self::int(Self::SIZE_OF_CHAR * Self::BITS_OF_BYTE);
/// TODO(document)
pub const SHORT: Self = Self::int(Self::SIZE_OF_SHORT * Self::BITS_OF_BYTE);
/// TODO(document)
pub const INT: Self = Self::int(Self::SIZE_OF_INT * Self::BITS_OF_BYTE);
/// TODO(document)
pub const LONG: Self = Self::int(Self::SIZE_OF_LONG * Self::BITS_OF_BYTE);
/// TODO(document)
pub const LONGLONG: Self = Self::int(Self::SIZE_OF_LONGLONG * Self::BITS_OF_BYTE);
/// TODO(document)
pub const FLOAT: Self = Self::float(Self::SIZE_OF_FLOAT * Self::BITS_OF_BYTE);
/// TODO(document)
pub const DOUBLE: Self = Self::float(Self::SIZE_OF_DOUBLE * Self::BITS_OF_BYTE);
/// TODO(document)
#[inline]
pub const fn unit() -> Self {
Self::Unit { is_const: false }
}
/// TODO(document)
#[inline]
pub const fn int(width: usize) -> Self {
Self::Int {
@@ -507,6 +584,7 @@ impl Dtype {
}
}
/// TODO(document)
#[inline]
pub const fn float(width: usize) -> Self {
Self::Float {
@@ -515,6 +593,7 @@ impl Dtype {
}
}
/// TODO(document)
#[inline]
pub fn pointer(inner: Dtype) -> Self {
Self::Pointer {
@@ -523,9 +602,14 @@ impl Dtype {
}
}
// Suppose the C declaration is `int *a[2][3]`. Then `a`'s `ir::Dtype` should be `[2 x [3 x int*]]`.
// But in the AST, it is parsed as `Array(3, Array(2, Pointer(int)))`, reversing the order of `2` and `3`.
// In the recursive translation of declaration into Dtype, we need to insert `3` inside `[2 * int*]`.
/// TODO(document)
///
/// # Examples
///
/// Suppose the C declaration is `int *a[2][3]`. Then `a`'s `ir::Dtype` should be `[2 x [3 x
/// int*]]`. But in the AST, it is parsed as `Array(3, Array(2, Pointer(int)))`, reversing the
/// order of `2` and `3`. In the recursive translation of declaration into Dtype, we need to
/// insert `3` inside `[2 * int*]`.
pub fn array(base_dtype: Dtype, size: usize) -> Self {
match base_dtype {
Self::Array {
@@ -547,6 +631,7 @@ impl Dtype {
}
}
/// TODO(document)
#[inline]
pub fn structure(name: Option<String>, fields: Option<Vec<Named<Self>>>) -> Self {
Self::Struct {
@@ -1344,7 +1429,7 @@ fn check_no_duplicate_field(fields: &[Named<Dtype>], field_names: &mut HashSet<S
.expect("`field_dtype` must be struct type")
.as_ref()
.expect("struct type must have its definition");
if !check_no_duplicate_field(&fields, field_names) {
if !check_no_duplicate_field(fields, field_names) {
return false;
}
}

View File

@@ -4,7 +4,6 @@ use itertools::izip;
use crate::ir::*;
use crate::utils::IsEquiv;
use crate::*;
impl IsEquiv for TranslationUnit {
fn is_equiv(&self, other: &Self) -> bool {
@@ -30,7 +29,7 @@ impl IsEquiv for TranslationUnit {
}
}
impl IsEquiv for ir::Declaration {
impl IsEquiv for Declaration {
fn is_equiv(&self, other: &Self) -> bool {
match (self, other) {
(
@@ -328,7 +327,7 @@ fn is_equiv_arg(lhs: &JumpArg, rhs: &JumpArg, map: &HashMap<BlockId, BlockId>) -
true
}
impl IsEquiv for ir::FunctionDefinition {
impl IsEquiv for FunctionDefinition {
fn is_equiv(&self, other: &Self) -> bool {
if self.allocations != other.allocations {
return false;
@@ -348,7 +347,7 @@ impl IsEquiv for ir::FunctionDefinition {
let mut map = HashMap::new();
for (f, t) in izip!(&preorder, &preorder_other) {
map.insert(*f, *t);
let _ = map.insert(*f, *t);
}
if map.get(&self.bid_init) != Some(&other.bid_init) {

View File

@@ -703,7 +703,7 @@ mod calculator {
let value = (-(value as i128)) as u128;
trim_unnecessary_bits(value, width as u128)
};
Ok(Value::int(result as u128, width, is_signed))
Ok(Value::int(result, width, is_signed))
}
ast::UnaryOperator::Negate => {
// Check if it is boolean
@@ -781,11 +781,11 @@ mod calculator {
if value == 0 {
Ok(Value::pointer(None, 0, inner.deref().clone()))
} else {
panic!(format!(
panic!(
"calculate_typecast: not support case \
typecast int to pointer when `value` is {}",
value
))
)
}
}
(
@@ -1028,7 +1028,7 @@ impl Byte {
let size = value.dtype().size_align_of(structs).unwrap().0;
let value_bits: u128 = match size {
Dtype::SIZE_OF_FLOAT => (float_value.into_inner() as f32).to_bits() as u128,
Dtype::SIZE_OF_DOUBLE => (float_value.into_inner() as f64).to_bits() as u128,
Dtype::SIZE_OF_DOUBLE => (float_value.into_inner()).to_bits() as u128,
_ => panic!("value_to_bytes: {} is not a valid float size", size),
};
@@ -1073,7 +1073,7 @@ impl Byte {
izip!(fields, offsets).for_each(|(f, o)| {
let result = Self::value_to_bytes(f.deref(), structs);
let size_of_data = f.deref().dtype().size_align_of(structs).unwrap().0;
values.splice(*o..(*o + size_of_data), result.iter().cloned());
let _ = values.splice(*o..(*o + size_of_data), result.iter().cloned());
});
values
@@ -1143,7 +1143,7 @@ impl Memory {
let block = self.inner[bid].as_mut().unwrap();
if 0 <= offset && end <= block.len() {
block.splice(offset as usize..end, bytes.iter().cloned());
let _ = block.splice(offset as usize..end, bytes.iter().cloned());
Ok(())
} else {
Err(())
@@ -1163,16 +1163,16 @@ struct State<'i> {
}
impl<'i> State<'i> {
fn new(ir: &'i TranslationUnit, args: Vec<Value>) -> Result<State, InterpreterError> {
fn new(ir: &'i TranslationUnit, args: Vec<Value>) -> Result<State<'_>, InterpreterError> {
// Interpreter starts with the main function
let func_name = String::from("main");
let func = ir
.decls
.get(&func_name)
.ok_or_else(|| InterpreterError::NoMainFunction)?;
.ok_or(InterpreterError::NoMainFunction)?;
let (_, func_def) = func
.get_function()
.ok_or_else(|| InterpreterError::NoMainFunction)?;
.ok_or(InterpreterError::NoMainFunction)?;
let func_def = func_def
.as_ref()
.ok_or_else(|| InterpreterError::NoFunctionDefinition {
@@ -1218,7 +1218,7 @@ impl<'i> State<'i> {
},
)?
} else {
Value::default_from_dtype(&dtype, &self.ir.structs)
Value::default_from_dtype(dtype, &self.ir.structs)
.expect("default value must be derived from `dtype`")
};
@@ -1244,7 +1244,7 @@ impl<'i> State<'i> {
fn alloc_local_variables(&mut self) -> Result<(), InterpreterError> {
// add alloc register
for (id, allocation) in self.stack_frame.func_def.allocations.iter().enumerate() {
let bid = self.memory.alloc(&allocation, &self.ir.structs)?;
let bid = self.memory.alloc(allocation, &self.ir.structs)?;
let ptr = Value::pointer(Some(bid), 0, allocation.deref().clone());
let rid = RegisterId::local(id);
@@ -1407,7 +1407,7 @@ impl<'i> State<'i> {
let lhs = self.interp_operand(lhs.clone())?;
let rhs = self.interp_operand(rhs.clone())?;
calculator::calculate_binary_operator_expression(&op, lhs, rhs).map_err(|_| {
calculator::calculate_binary_operator_expression(op, lhs, rhs).map_err(|_| {
InterpreterError::Misc {
func_name: self.stack_frame.func_name.clone(),
pc: self.stack_frame.pc,
@@ -1418,7 +1418,7 @@ impl<'i> State<'i> {
Instruction::UnaryOp { op, operand, .. } => {
let operand = self.interp_operand(operand.clone())?;
calculator::calculate_unary_operator_expression(&op, operand).map_err(|_| {
calculator::calculate_unary_operator_expression(op, operand).map_err(|_| {
InterpreterError::Misc {
func_name: self.stack_frame.func_name.clone(),
pc: self.stack_frame.pc,
@@ -1517,7 +1517,7 @@ impl<'i> State<'i> {
let offset = prev_offset + value as isize;
assert!(0 <= offset);
Value::pointer(*bid, offset as isize, inner_dtype.clone())
Value::pointer(*bid, offset, inner_dtype.clone())
}
};

View File

@@ -1,6 +1,9 @@
//! The intermediate representation.
mod dtype;
mod equiv;
mod interp;
#[allow(clippy::all)]
mod parse;
mod write_ir;
@@ -247,11 +250,7 @@ impl HasDtype for Instruction {
impl Instruction {
pub fn is_pure(&self) -> bool {
match self {
Self::Store { .. } => false,
Self::Call { .. } => false,
_ => true,
}
!matches!(self, Self::Store { .. } | Self::Call { .. })
}
}
@@ -526,6 +525,7 @@ impl TryFrom<&ast::Constant> for Constant {
ast::IntegerBase::Decimal => Self::DECIMAL,
ast::IntegerBase::Octal => Self::OCTAL,
ast::IntegerBase::Hexadecimal => Self::HEXADECIMAL,
ast::IntegerBase::Binary => Self::BINARY,
};
let value = if integer.suffix.unsigned {
@@ -636,14 +636,11 @@ impl Constant {
const DECIMAL: u32 = 10;
const OCTAL: u32 = 8;
const HEXADECIMAL: u32 = 16;
const BINARY: u32 = 2;
#[inline]
pub fn is_integer_constant(&self) -> bool {
if let Self::Int { .. } = self {
true
} else {
false
}
matches!(self, Self::Int { .. })
}
#[inline]
@@ -730,17 +727,13 @@ impl Constant {
}
_ => panic!(
"constant value generated by `Constant::from_ast_expression` \
must be `Constant{{Int, Float}}`"
must be `Constant(Int, Float)`"
),
}
}
pub fn is_undef(&self) -> bool {
if let Self::Undef { .. } = self {
true
} else {
false
}
matches!(self, Self::Undef { .. })
}
pub fn typecast(self, target_dtype: Dtype) -> Self {

View File

@@ -660,7 +660,7 @@ pub enum Error {
ResolveError,
}
#[derive(Default)]
#[derive(Default, Debug)]
pub struct Parse {}
impl<P: AsRef<Path>> Translate<P> for Parse {

View File

@@ -1,9 +1,44 @@
//! KECC: KAIST Educational C Compiler.
// Tries to deny all lints (`rustc -W help`).
#![deny(warnings)]
// Neccessary for skeleton code.
#![deny(absolute_paths_not_starting_with_crate)]
#![deny(anonymous_parameters)]
// #![deny(box_pointers)]
#![deny(deprecated_in_future)]
#![deny(elided_lifetimes_in_paths)]
#![deny(explicit_outlives_requirements)]
#![deny(invalid_html_tags)]
#![deny(keyword_idents)]
#![deny(macro_use_extern_crate)]
#![deny(missing_debug_implementations)]
// #![deny(missing_docs)] TODO
#![deny(missing_doc_code_examples)]
#![deny(non_ascii_idents)]
#![deny(pointer_structural_match)]
// #![deny(single_use_lifetimes)]
#![deny(trivial_numeric_casts)]
#![deny(unaligned_references)]
// #![deny(unreachable_pub)]
#![deny(unstable_features)]
// Necessary for `build-bin` trick.
// #![deny(unused_crate_dependencies)]
#![deny(unused_extern_crates)]
#![deny(unused_import_braces)]
#![deny(unused_lifetimes)]
#![deny(unused_qualifications)]
#![deny(unused_results)]
// #![deny(variant_size_differences)]
#![deny(rust_2018_idioms)]
#![deny(rustdoc::all)]
// Necessary for skeleton code.
#![allow(unreachable_code)]
// Necessary to allow `iter.fold(false, |l, r| l || r)`. It's used when iteration should not be
// short-circuited.
#![allow(clippy::unnecessary_fold)]
#![allow(clippy::result_unit_err)]
#![allow(clippy::vec_init_then_push)]
#![allow(clippy::collapsible_match)]
mod tests;
mod utils;

View File

@@ -22,15 +22,15 @@ pub trait Optimize<T> {
pub type O0 = Null;
pub type O1 = Repeat<(SimplifyCfg, (Mem2reg, (Gvn, Deadcode)))>;
#[derive(Default)]
#[derive(Default, Debug)]
pub struct Null {}
#[derive(Default)]
#[derive(Default, Debug)]
pub struct Repeat<O> {
inner: O,
}
#[derive(Default)]
#[derive(Default, Debug)]
pub struct FunctionPass<T: Optimize<ir::FunctionDefinition>> {
inner: T,
}

View File

@@ -14,7 +14,8 @@ const NONCE_NAME: &str = "nonce";
fn modify_c(path: &Path, rand_num: i32) -> String {
let mut src = File::open(path).expect("`path` must exist");
let mut data = String::new();
src.read_to_string(&mut data)
let _ = src
.read_to_string(&mut data)
.expect("`src` must be converted to string");
drop(src);
@@ -69,8 +70,9 @@ fn modify_asm(unit: &mut asm::Asm, rand_num: i32) {
// Rust sets an exit code of 101 when the process panicked.
// So, we decide KECC sets an exit code of 102 after 101 when the test skipped.
pub const SKIP_TEST: i32 = 102;
const SKIP_TEST: i32 = 102;
/// Tests write_c.
pub fn test_write_c(path: &Path) {
// Check if the file has .c extension
assert_eq!(path.extension(), Some(std::ffi::OsStr::new("c")));
@@ -82,7 +84,7 @@ pub fn test_write_c(path: &Path) {
let temp_file_path = temp_dir.path().join("temp.c");
let mut temp_file = File::create(&temp_file_path).unwrap();
crate::write(&unit, &mut temp_file).unwrap();
write(&unit, &mut temp_file).unwrap();
let new_unit = c::Parse::default()
.translate(&temp_file_path.as_path())
@@ -92,6 +94,7 @@ pub fn test_write_c(path: &Path) {
temp_dir.close().expect("temp dir deletion failed");
}
/// Tests irgen.
pub fn test_irgen(path: &Path) {
// Check if the file has .c extension
assert_eq!(path.extension(), Some(std::ffi::OsStr::new("c")));
@@ -103,7 +106,7 @@ pub fn test_irgen(path: &Path) {
.translate(&unit)
.unwrap_or_else(|irgen_error| panic!("{}", irgen_error));
let rand_num = rand::thread_rng().gen_range(1, 100);
let rand_num = rand::thread_rng().gen_range(1..100);
let new_c = modify_c(path, rand_num);
modify_ir(&mut ir, rand_num);
@@ -151,7 +154,7 @@ pub fn test_irgen(path: &Path) {
{
println!("timeout occurs");
child.kill().unwrap();
child.wait().unwrap();
let _ = child.wait().unwrap();
::std::process::exit(SKIP_TEST);
}
);
@@ -187,6 +190,7 @@ pub fn test_irgen(path: &Path) {
assert_eq!(status as u8, value as u8);
}
/// Tests irparse.
pub fn test_irparse(path: &Path) {
// Check if the file has .c extension
assert_eq!(path.extension(), Some(std::ffi::OsStr::new("c")));
@@ -195,7 +199,7 @@ pub fn test_irparse(path: &Path) {
.unwrap_or_else(|_| panic!("parse failed {}", path.display()));
// Test parse
c::Parse::default()
let _ = c::Parse::default()
.translate(&path)
.expect("failed to parse the given program");
@@ -207,7 +211,7 @@ pub fn test_irparse(path: &Path) {
.unwrap_or_else(|irgen_error| panic!("{}", irgen_error));
let temp_file_path = temp_dir.path().join("ir0.ir");
let mut temp_file = File::create(&temp_file_path).unwrap();
crate::write(&ir, &mut temp_file).unwrap();
write(&ir, &mut temp_file).unwrap();
let ir0 = ir::Parse::default()
.translate(&temp_file_path.as_path())
@@ -233,9 +237,9 @@ fn test_irparse_for_optimized_ir<O: Optimize<ir::TranslationUnit>>(
temp_file_path: &Path,
mut opt: O,
) -> ir::TranslationUnit {
opt.optimize(&mut ir);
let _ = opt.optimize(&mut ir);
let mut temp_file = File::create(temp_file_path).unwrap();
crate::write(&ir, &mut temp_file).unwrap();
write(&ir, &mut temp_file).unwrap();
let optimized_ir = ir::Parse::default()
.translate(&temp_file_path)
@@ -246,6 +250,7 @@ fn test_irparse_for_optimized_ir<O: Optimize<ir::TranslationUnit>>(
optimized_ir
}
/// Tests optimizations.
pub fn test_opt<P1: AsRef<Path>, P2: AsRef<Path>, O: Optimize<ir::TranslationUnit>>(
from: &P1,
to: &P2,
@@ -258,7 +263,7 @@ pub fn test_opt<P1: AsRef<Path>, P2: AsRef<Path>, O: Optimize<ir::TranslationUni
let to = ir::Parse::default()
.translate(to)
.expect("parse failed while parsing the output from implemented printer");
opt.optimize(&mut ir);
let _ = opt.optimize(&mut ir);
if !ir.is_equiv(&to) {
stderr()
@@ -267,21 +272,22 @@ pub fn test_opt<P1: AsRef<Path>, P2: AsRef<Path>, O: Optimize<ir::TranslationUni
"[test_opt] actual outcome mismatches with the expected outcome.\n\n[before opt]"
))
.unwrap();
crate::write(&from, &mut stderr()).unwrap();
write(&from, &mut stderr()).unwrap();
stderr()
.lock()
.write_fmt(format_args!("\n[after opt]"))
.unwrap();
crate::write(&ir, &mut stderr()).unwrap();
write(&ir, &mut stderr()).unwrap();
stderr()
.lock()
.write_fmt(format_args!("\n[after opt (expected)]"))
.unwrap();
crate::write(&to, &mut stderr()).unwrap();
write(&to, &mut stderr()).unwrap();
panic!("[test_opt]");
}
}
/// Tests asmgen.
pub fn test_asmgen(path: &Path) {
// Check if the file has .ir extension
assert_eq!(path.extension(), Some(std::ffi::OsStr::new("ir")));
@@ -294,7 +300,7 @@ pub fn test_asmgen(path: &Path) {
.translate(&ir)
.expect("fail to create riscv assembly code");
let rand_num = rand::thread_rng().gen_range(1, 100);
let rand_num = rand::thread_rng().gen_range(1..100);
modify_ir(&mut ir, rand_num);
modify_asm(&mut asm, rand_num);
@@ -320,7 +326,7 @@ pub fn test_asmgen(path: &Path) {
write(&asm, &mut buffer).unwrap();
// Compile the assembly code
if !Command::new("riscv64-linux-gnu-gcc-10")
if !Command::new("riscv64-linux-gnu-gcc")
.args(&["-static", &asm_path_str, "-o", &bin_path_str])
.stderr(Stdio::null())
.status()
@@ -344,7 +350,7 @@ pub fn test_asmgen(path: &Path) {
{
println!("timeout occurs");
child.kill().unwrap();
child.wait().unwrap();
let _ = child.wait().unwrap();
::std::process::exit(SKIP_TEST);
}
);
@@ -368,6 +374,7 @@ pub fn test_asmgen(path: &Path) {
assert_eq!(value as u8, qemu_status as u8);
}
/// Tests end-to-end translation.
// TODO: test all the way down to assembly
pub fn test_end_to_end(path: &Path) {
// Check if the file has .c extension
@@ -377,7 +384,7 @@ pub fn test_end_to_end(path: &Path) {
.unwrap_or_else(|_| panic!("parse failed {}", path.display()));
// Test parse
c::Parse::default()
let _ = c::Parse::default()
.translate(&path)
.expect("failed to parse the given program");
@@ -412,7 +419,7 @@ pub fn test_end_to_end(path: &Path) {
.spawn()
.expect("failed to execute the compiled executable");
Command::new("rm")
let _ = Command::new("rm")
.arg(bin_path)
.status()
.expect("failed to remove compiled executable");
@@ -424,7 +431,7 @@ pub fn test_end_to_end(path: &Path) {
{
println!("timeout occurs");
child.kill().unwrap();
child.wait().unwrap();
let _ = child.wait().unwrap();
::std::process::exit(SKIP_TEST);
}
);
@@ -445,7 +452,7 @@ pub fn test_end_to_end(path: &Path) {
let mut ir = Irgen::default()
.translate(&unit)
.unwrap_or_else(|irgen_error| panic!("{}", irgen_error));
O1::default().optimize(&mut ir);
let _ = O1::default().optimize(&mut ir);
let args = Vec::new();
let result = ir::interp(&ir, args).unwrap_or_else(|interp_error| panic!("{}", interp_error));
// We only allow main function whose return type is `int`

View File

@@ -49,18 +49,27 @@ macro_rules! some_or_exit {
}};
}
/// TODO(document)
pub trait Translate<S> {
/// TODO(document)
type Target;
/// TODO(document)
type Error;
/// TODO(document)
fn translate(&mut self, source: &S) -> Result<Self::Target, Self::Error>;
}
/// TODO(document)
pub trait AssertSupported {
/// TODO(document)
fn assert_supported(&self);
}
/// TODO(document)
pub trait IsEquiv {
/// TODO(document)
fn is_equiv(&self, other: &Self) -> bool;
}

View File

@@ -1,22 +1,30 @@
use std::io::{Result, Write};
/// TODO(document)
#[inline]
pub fn write_indent(indent: usize, write: &mut dyn Write) -> Result<()> {
write!(write, "{}", " ".repeat(indent))
}
/// TODO(document)
pub trait WriteLine {
/// TODO(document)
fn write_line(&self, indent: usize, write: &mut dyn Write) -> Result<()>;
}
/// TODO(document)
pub trait WriteString {
/// TODO(document)
fn write_string(&self) -> String;
}
/// TODO(document)
pub trait WriteOp {
/// TODO(document)
fn write_operation(&self) -> String;
}
/// TODO(document)
pub fn write<T: WriteLine>(t: &T, write: &mut dyn Write) -> Result<()> {
t.write_line(0, write)
}

View File

@@ -224,7 +224,7 @@ def fuzz(tests_dir, fuzz_arg, num_iter):
dst.write(src_polished)
try:
args = ["cargo", "run", "--release", "--bin", "fuzz", "--", fuzz_arg, os.path.join(tests_dir, "test_polished.c")]
args = ["cargo", "run", "--features=build-bin", "--release", "--bin", "fuzz", "--", fuzz_arg, os.path.join(tests_dir, "test_polished.c")]
proc = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, cwd=tests_dir)
proc.communicate(timeout=60)