// checkFile performs a static semantic analysis check on the given file.
func compileFile(path string, output io.Writer, goccLexer bool) error {
// Lexical analysis
// Syntactic analysis
// Semantic analysis
// Intermediate representation generation
// Create lexer for the input.
buf, err := ioutilx.ReadFile(path)
if err != nil {
return errutil.Err(err)
}
if path == "-" {
path = "<stdin>"
}
fmt.Fprintf(os.Stderr, "Compiling %q\n", path)
var s parser.Scanner
if goccLexer {
s = goccscanner.NewFromBytes(buf)
} else {
s = handscanner.NewFromBytes(buf)
}
// Parse input.
p := parser.NewParser()
f, err := p.Parse(s)
if err != nil {
if err, ok := err.(*goccerrors.Error); ok {
// Unwrap Gocc error.
return parser.NewError(err)
}
return errutil.Err(err)
}
file := f.(*ast.File)
input := string(buf)
src := semerrors.NewSource(path, input)
info, err := sem.Check(file)
if err != nil {
if err, ok := err.(*errutil.ErrInfo); ok {
// Unwrap errutil error.
if err, ok := err.Err.(*semerrors.Error); ok {
// Unwrap semantic analysis error, and add input source information.
err.Src = src
return err
}
}
return errutil.Err(err)
}
// Generate LLVM IR module based on the syntax tree of the given file.
module := irgen.Gen(file, info)
if _, err := fmt.Fprint(output, module); err != nil {
return errutil.Err(err)
}
return nil
}
func TestGen(t *testing.T) {
golden := []struct {
path string
want string
}{
// Identifier usage.
{
path: "../testdata/extra/irgen/int_ident_use.c",
want: "../testdata/extra/irgen/int_ident_use.ll",
},
{
path: "../testdata/extra/irgen/int_ident_def.c",
want: "../testdata/extra/irgen/int_ident_def.ll",
},
{
path: "../testdata/extra/irgen/array_ident_use.c",
want: "../testdata/extra/irgen/array_ident_use.ll",
},
// NOTE: Not part of grammar for uC.
//{
// path: "../testdata/extra/irgen/array_ident_def.c",
// want: "../testdata/extra/irgen/array_ident_def.ll",
//},
{
path: "../testdata/extra/irgen/index_expr_use.c",
want: "../testdata/extra/irgen/index_expr_use.ll",
},
{
path: "../testdata/extra/irgen/index_expr_def.c",
want: "../testdata/extra/irgen/index_expr_def.ll",
},
{
path: "../testdata/extra/irgen/global_index_expr_use.c",
want: "../testdata/extra/irgen/global_index_expr_use.ll",
},
{
path: "../testdata/extra/irgen/global_index_expr_def.c",
want: "../testdata/extra/irgen/global_index_expr_def.ll",
},
// Global variable declarations.
{
path: "../testdata/extra/irgen/global_def.c",
want: "../testdata/extra/irgen/global_def.ll",
},
{
path: "../testdata/extra/irgen/tentative_def.c",
want: "../testdata/extra/irgen/tentative_def.ll",
},
// Return statements.
{
path: "../testdata/extra/irgen/void_ret.c",
want: "../testdata/extra/irgen/void_ret.ll",
},
{
path: "../testdata/extra/irgen/implicit_void_ret.c",
want: "../testdata/extra/irgen/implicit_void_ret.ll",
},
{
path: "../testdata/extra/irgen/int_ret.c",
want: "../testdata/extra/irgen/int_ret.ll",
},
{
path: "../testdata/extra/irgen/expr_ret.c",
want: "../testdata/extra/irgen/expr_ret.ll",
},
{
path: "../testdata/extra/irgen/global_ret.c",
want: "../testdata/extra/irgen/global_ret.ll",
},
// Local variable declarations.
{
path: "../testdata/extra/irgen/local_def.c",
want: "../testdata/extra/irgen/local_def.ll",
},
// If and if-else statements.
{
path: "../testdata/extra/irgen/if_stmt.c",
want: "../testdata/extra/irgen/if_stmt.ll",
},
{
path: "../testdata/extra/irgen/if_else_stmt.c",
want: "../testdata/extra/irgen/if_else_stmt.ll",
},
// Parenthesized expressions.
{
path: "../testdata/extra/irgen/paren_expr.c",
want: "../testdata/extra/irgen/paren_expr.ll",
},
// Unary expressions.
{
path: "../testdata/extra/irgen/unary_expr_sub.c",
want: "../testdata/extra/irgen/unary_expr_sub.ll",
},
{
path: "../testdata/extra/irgen/unary_expr_not.c",
want: "../testdata/extra/irgen/unary_expr_not.ll",
},
// Binary expressions.
{
path: "../testdata/extra/irgen/binary_expr_add.c",
want: "../testdata/extra/irgen/binary_expr_add.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_sub.c",
want: "../testdata/extra/irgen/binary_expr_sub.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_mul.c",
want: "../testdata/extra/irgen/binary_expr_mul.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_div.c",
want: "../testdata/extra/irgen/binary_expr_div.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_lt.c",
want: "../testdata/extra/irgen/binary_expr_lt.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_gt.c",
want: "../testdata/extra/irgen/binary_expr_gt.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_le.c",
want: "../testdata/extra/irgen/binary_expr_le.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_ge.c",
want: "../testdata/extra/irgen/binary_expr_ge.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_ne.c",
want: "../testdata/extra/irgen/binary_expr_ne.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_eq.c",
want: "../testdata/extra/irgen/binary_expr_eq.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_land.c",
want: "../testdata/extra/irgen/binary_expr_land.ll",
},
{
path: "../testdata/extra/irgen/binary_expr_assign.c",
want: "../testdata/extra/irgen/binary_expr_assign.ll",
},
{
path: "../testdata/extra/irgen/while_stmt.c",
want: "../testdata/extra/irgen/while_stmt.ll",
},
// Function parameters.
{
path: "../testdata/extra/irgen/func_param.c",
want: "../testdata/extra/irgen/func_param.ll",
},
// Nested variable declarations.
{
path: "../testdata/extra/irgen/nested_var_decl.c",
want: "../testdata/extra/irgen/nested_var_decl.ll",
},
// Call expressions.
{
path: "../testdata/extra/irgen/call_expr.c",
want: "../testdata/extra/irgen/call_expr.ll",
},
{
path: "../testdata/extra/irgen/call_expr_cast.c",
want: "../testdata/extra/irgen/call_expr_cast.ll",
},
// NOTE: Correct output. The only difference is that Clang emits all
// alloca instructions at the beginning of the entry block. Thus, disabled
// for now.
//{
// path: "../testdata/extra/irgen/call_expr_multi_args.c",
// want: "../testdata/extra/irgen/call_expr_multi_args.ll",
//},
// NOTE: Correct output. The only difference is that Clang emits all
// alloca instructions at the beginning of the entry block. Thus, disabled
// for now.
//{
// path: "../testdata/extra/irgen/call_expr_multi_args_cast.c",
// want: "../testdata/extra/irgen/call_expr_multi_args_cast.ll",
//},
// Expression statements.
{
path: "../testdata/extra/irgen/expr_stmt.c",
want: "../testdata/extra/irgen/expr_stmt.ll",
},
// Index expressions.
{
path: "../testdata/extra/irgen/index_expr.c",
want: "../testdata/extra/irgen/index_expr.ll",
},
// Array arguments.
{
path: "../testdata/extra/irgen/array_arg.c",
want: "../testdata/extra/irgen/array_arg.ll",
},
// Array parameters.
// TODO: Re-enable; https://github.com/mewmew/uc/issues/73
{
path: "../testdata/extra/irgen/array_param.c",
want: "../testdata/extra/irgen/array_param.ll",
},
// Bug fixes.
{
path: "../testdata/extra/irgen/issue_68_nested_if.c",
want: "../testdata/extra/irgen/issue_68_nested_if.ll",
},
{
path: "../testdata/extra/irgen/issue_68_nested_if_while.c",
want: "../testdata/extra/irgen/issue_68_nested_if_while.ll",
},
// TODO: Re-enable when better support for logical AND expressions have
// been implemented.
//{
// path: "../testdata/extra/irgen/issue_68_if_land.c",
// want: "../testdata/extra/irgen/issue_68_if_land.ll",
//},
{
path: "../testdata/extra/irgen/issue_68_while_land.c",
want: "../testdata/extra/irgen/issue_68_while_land.ll",
},
// NOTE: The test case "issue_70_if_ret.c" no longer panics on SetTerm
// with a nil basic block. The test case still doesn't pass, but this is
// simply because Clang allocates a dedicated variable for return values,
// which differs from how uclang does. Thus, the test case remains
// disabled for now.
//{
// path: "../testdata/extra/irgen/issue_70_if_ret.c",
// want: "../testdata/extra/irgen/issue_70_if_ret.ll",
//},
// NOTE: The test case "issue_70_while_ret.c" no longer panics on SetTerm
// with a nil basic block. The test case still doesn't pass, but this is
// simply because Clang allocates a dedicated variable for return values,
// which differs from how uclang does. Thus, the test case remains
// disabled for now.
//{
// path: "../testdata/extra/irgen/issue_70_while_ret.c",
// want: "../testdata/extra/irgen/issue_70_while_ret.ll",
//},
{
path: "../testdata/extra/irgen/issue_69_trunc_arg.c",
want: "../testdata/extra/irgen/issue_69_trunc_arg.ll",
},
// TODO: Re-enable; https://github.com/mewmew/uc/issues/73
{
path: "../testdata/extra/irgen/issue_73_pointer_pointer_use.c",
want: "../testdata/extra/irgen/issue_73_pointer_pointer_use.ll",
},
// TODO: Re-enable; https://github.com/mewmew/uc/issues/73
{
path: "../testdata/extra/irgen/issue_73_pointer_pointer_ref.c",
want: "../testdata/extra/irgen/issue_73_pointer_pointer_ref.ll",
},
{
path: "../testdata/extra/irgen/global_array_arg.c",
want: "../testdata/extra/irgen/global_array_arg.ll",
},
{
path: "../testdata/extra/irgen/global_array_ident_use.c",
want: "../testdata/extra/irgen/global_array_ident_use.ll",
},
// NOTE: Not part of grammar for uC.
// {
// path: "../testdata/extra/irgen/global_array_ident_def.c",
// want: "../testdata/extra/irgen/global_array_ident_def.ll",
// },
{
path: "../testdata/extra/irgen/global_array_param.c",
want: "../testdata/extra/irgen/global_array_param.ll",
},
}
for _, g := range golden {
// Lex input.
buf, err := ioutil.ReadFile(g.path)
if err != nil {
t.Errorf("%q: %v", g.path, err)
continue
}
input := string(buf)
s := scanner.NewFromString(input)
// Parse input.
p := parser.NewParser()
f, err := p.Parse(s)
if err != nil {
t.Errorf("%q: parse error: %v", g.path, err)
continue
}
file := f.(*ast.File)
// Verify input.
info, err := sem.Check(file)
if err != nil {
t.Errorf("%q: semantic analysis error: %v", g.path, err)
continue
}
// Generate IR.
// TODO: Remove debug output.
fmt.Printf("\n=== [ %s ] ====================================\n\n", g.want)
module := irgen.Gen(file, info)
// Compare generated module against gold standard.
buf, err = ioutil.ReadFile(g.want)
if err != nil {
t.Errorf("%q: %v", g.path, err)
continue
}
got, want := module.String(), string(buf)
if got != want {
t.Errorf("%q: module mismatch; expected `%v`, got `%v`", g.path, want, got)
// TODO: Remove debug output.
fmt.Println("### FAIL:", g.path)
continue
}
// TODO: Remove debug output.
fmt.Println("PASS:", g.path)
}
}
// checkFile performs a static semantic analysis check on the given file.
func compileFile(path string, outputPath string, goccLexer bool) error {
// Lexical analysis
// Syntactic analysis
// Semantic analysis
// Intermediate representation generation
// Create lexer for the input.
buf, err := ioutilx.ReadFile(path)
if err != nil {
return errutil.Err(err)
}
if path == "-" {
path = "<stdin>"
}
fmt.Fprintf(os.Stderr, "Compiling %q\n", path)
var s parser.Scanner
if goccLexer {
s = goccscanner.NewFromBytes(buf)
} else {
s = handscanner.NewFromBytes(buf)
}
// Parse input.
p := parser.NewParser()
f, err := p.Parse(s)
if err != nil {
if err, ok := err.(*goccerrors.Error); ok {
// Unwrap Gocc error.
return parser.NewError(err)
}
return errutil.Err(err)
}
file := f.(*ast.File)
input := string(buf)
src := semerrors.NewSource(path, input)
info, err := sem.Check(file)
if err != nil {
if err, ok := err.(*errutil.ErrInfo); ok {
// Unwrap errutil error.
if err, ok := err.Err.(*semerrors.Error); ok {
// Unwrap semantic analysis error, and add input source information.
err.Src = src
return err
}
}
return errutil.Err(err)
}
// Generate LLVM IR module based on the syntax tree of the given file.
module := irgen.Gen(file, info)
// Add path to uc lib.
lib, err := goutil.SrcDir("github.com/mewmew/uc/testdata")
if err != nil {
return errutil.Err(err)
}
lib = filepath.Join(lib, "uc.ll")
// Link and create binary through clang
clang := exec.Command("clang", "-o", outputPath, "-x", "ir", lib, "-")
clang.Stdin = strings.NewReader(module.String())
clang.Stderr = os.Stderr
clang.Stdout = os.Stdout
if err := clang.Run(); err != nil {
return errutil.Err(err)
}
return nil
}
