#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 *, ...);
int main(int argc, char *argv[]) {
  if (argc == 1) {
    printf("Hey! You will need to pass at least one argument!\n");
    return -1;
  }
  for (int i = 0; i < argc; i++) {
    printf("The argument %i is %s\n", i, argv[i]);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x1,-0x8(%rbp)
jne    114a <main+0x3a>
lea    0xec9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    118f <main+0x7f>
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    1188 <main+0x78>
mov    -0x14(%rbp),%esi
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,8),%rdx
lea    0xec0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1151 <main+0x41>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
cmp    $0x1,%edi
jne    1142 <main+0x22>
lea    0xee2(%rip),%rdi
call   1030 <puts@plt>
mov    $0xffffffff,%r14d
jmp    117e <main+0x5e>
jl     117b <main+0x5b>
mov    %rsi,%r12
mov    %edi,%r13d
xor    %r14d,%r14d
lea    0xeac(%rip),%r15
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
mov    (%r12,%rbx,8),%rdx
mov    %r15,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r13
jne    1160 <main+0x40>
jmp    117e <main+0x5e>
xor    %r14d,%r14d
mov    %r14d,%eax
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [51 x i8] c"Hey! You will need to pass at least one argument!\0A\00"
@.str.1 = [23 x i8] c"The argument %i is %s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp eq i32 %7, 1
br i1 %8, label %9, label %11
9: ; preds = %2
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str, i64 0, i64 0))
store i32 -1, i32* %3
br label %28
11: ; preds = %2
store i32 0, i32* %6
br label %12
12: ; preds = %24, %11
%13 = load i32, i32* %6
%14 = load i32, i32* %4
%15 = icmp slt i32 %13, %14
br i1 %15, label %16, label %27
16: ; preds = %12
%17 = load i32, i32* %6
%18 = load i8**, i8*** %5
%19 = load i32, i32* %6
%20 = sext i32 %19 to i64
%21 = getelementptr inbounds i8*, i8** %18, i64 %20
%22 = load i8*, i8** %21
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.1, i64 0, i64 0), i32 %17, i8* %22)
br label %24
24: ; preds = %16
%25 = load i32, i32* %6
%26 = add nsw i32 %25, 1
store i32 %26, i32* %6
br label %12
27: ; preds = %12
store i32 0, i32* %3
br label %28
28: ; preds = %27, %9
%29 = load i32, i32* %3
ret i32 %29
}

LLVM IR (-O2):
@.str.1 = [23 x i8] c"The argument %i is %s\0A\00"
@str = [50 x i8] c"Hey! You will need to pass at least one argument!\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 1
br i1 %3, label %8, label %4
4: ; preds = %2
%5 = icmp sgt i32 %0, 0
br i1 %5, label %6, label %18
6: ; preds = %4
%7 = zext i32 %0 to i64
br label %10
8: ; preds = %2
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([50 x i8], [50 x i8]* @str, i64 0, i64 0))
br label %18
10: ; preds = %6, %10
%11 = phi i64 [ 0, %6 ], [ %16, %10 ]
%12 = getelementptr inbounds i8*, i8** %1, i64 %11
%13 = load i8*, i8** %12
%14 = trunc i64 %11 to i32
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([23 x i8], [23 x i8]* @.str.1, i64 0, i64 0), i32 %14, i8* %13)
%16 = add nuw nsw i64 %11, 1
%17 = icmp eq i64 %16, %7
br i1 %17, label %18, label %10
18: ; preds = %10, %4, %8
%19 = phi i32 [ -1, %8 ], [ 0, %4 ], [ 0, %10 ]
ret i32 %19
}