#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ printf(char *, char *);
int /*<<< orphan*/ test_output_add();
int /*<<< orphan*/ test_output_divide();
int /*<<< orphan*/ test_output_footer();
int /*<<< orphan*/ test_output_header();
int /*<<< orphan*/ test_output_multiply();
int /*<<< orphan*/ test_output_statements_complete();
int /*<<< orphan*/ test_output_subtract();
int main(int argc, char *argv[]) {
  if (argc > 1) {
    printf("%s takes no arguments\n", argv[0]);
    return 1;
  }
  test_output_header();
  test_output_statements_complete();
  test_output_footer();
  test_output_add();
  test_output_subtract();
  test_output_multiply();
  test_output_divide();
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x1,-0x8(%rbp)
jle    11bf <main+0x3f>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xe52(%rip),%rdi
call   1060 <printf@plt>
movl   $0x1,-0x4(%rbp)
jmp    11f7 <main+0x77>
mov    $0x0,%al
call   1050 <test_output_header@plt>
mov    $0x0,%al
call   1080 <test_output_statements_complete@plt>
mov    $0x0,%al
call   1030 <test_output_footer@plt>
mov    $0x0,%al
call   10a0 <test_output_add@plt>
mov    $0x0,%al
call   1040 <test_output_subtract@plt>
mov    $0x0,%al
call   1070 <test_output_multiply@plt>
mov    $0x0,%al
call   1090 <test_output_divide@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
cmp    $0x2,%edi
jl     119c <main+0x1c>
mov    (%rsi),%rsi
lea    0xe70(%rip),%rdi
call   1060 <printf@plt>
mov    $0x1,%ebx
jmp    11cf <main+0x4f>
xor    %ebx,%ebx
xor    %eax,%eax
call   1050 <test_output_header@plt>
xor    %eax,%eax
call   1080 <test_output_statements_complete@plt>
xor    %eax,%eax
call   1030 <test_output_footer@plt>
xor    %eax,%eax
call   10a0 <test_output_add@plt>
xor    %eax,%eax
call   1040 <test_output_subtract@plt>
xor    %eax,%eax
call   1070 <test_output_multiply@plt>
xor    %eax,%eax
call   1090 <test_output_divide@plt>
mov    %ebx,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [23 x i8] c"%s takes no arguments\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = load i32, i32* %4
%7 = icmp sgt i32 %6, 1
br i1 %7, label %8, label %13
8: ; preds = %2
%9 = load i8**, i8*** %5
%10 = getelementptr inbounds i8*, i8** %9, i64 0
%11 = load i8*, i8** %10
%12 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i64 0, i64 0), i8* %11)
store i32 1, i32* %3
br label %21
13: ; preds = %2
%14 = call i32 (...) @test_output_header()
%15 = call i32 (...) @test_output_statements_complete()
%16 = call i32 (...) @test_output_footer()
%17 = call i32 (...) @test_output_add()
%18 = call i32 (...) @test_output_subtract()
%19 = call i32 (...) @test_output_multiply()
%20 = call i32 (...) @test_output_divide()
store i32 0, i32* %3
br label %21
21: ; preds = %13, %8
%22 = load i32, i32* %3
ret i32 %22
}

LLVM IR (-O2):
@.str = [23 x i8] c"%s takes no arguments\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp sgt i32 %0, 1
br i1 %3, label %4, label %7
4: ; preds = %2
%5 = load i8*, i8** %1
%6 = tail call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i64 0, i64 0), i8* %5)
br label %15
7: ; preds = %2
%8 = tail call i32 (...) @test_output_header()
%9 = tail call i32 (...) @test_output_statements_complete()
%10 = tail call i32 (...) @test_output_footer()
%11 = tail call i32 (...) @test_output_add()
%12 = tail call i32 (...) @test_output_subtract()
%13 = tail call i32 (...) @test_output_multiply()
%14 = tail call i32 (...) @test_output_divide()
br label %15
15: ; preds = %7, %4
%16 = phi i32 [ 1, %4 ], [ 0, %7 ]
ret i32 %16
}