#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*/ exit(int);
int /*<<< orphan*/ printf(char *, ...);
int main(int argc, char **argv) {
  int local_j = argc;
  char *s;
  printf("Hello from execd-prog...\n");
  if (argc != 2) {
    printf("expected one string argument\n");
    exit(-1);
  }
  s = argv[1];
  printf("argument received: %s\n", s);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    %rsi,-0x10(%rbp)
mov    -0x4(%rbp),%eax
mov    %eax,-0x14(%rbp)
lea    0xec4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cmpl   $0x2,-0x4(%rbp)
je     1165 <main+0x45>
lea    0xec6(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    $0xffffffff,%edi
call   1040 <exit@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x20(%rbp)
mov    -0x20(%rbp),%rsi
lea    0xebc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
mov    %rsi,%rbx
mov    %edi,%ebp
lea    0xed8(%rip),%rdi
call   1030 <puts@plt>
cmp    $0x2,%ebp
jne    1164 <main+0x34>
mov    0x8(%rbx),%rsi
lea    0xeac(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret
lea    0xec5(%rip),%rdi
call   1030 <puts@plt>
mov    $0xffffffff,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [26 x i8] c"Hello from execd-prog...\0A\00"
@.str.1 = [30 x i8] c"expected one string argument\0A\00"
@.str.2 = [23 x i8] c"argument received: %s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i8**
%5 = alloca i32
%6 = alloca i8*
store i32 %0, i32* %3
store i8** %1, i8*** %4
%7 = load i32, i32* %3
store i32 %7, i32* %5
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0))
%9 = load i32, i32* %3
%10 = icmp ne i32 %9, 2
br i1 %10, label %11, label %14
11: ; preds = %2
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.1, i64 0, i64 0))
%13 = call i32 @exit(i32 -1)
unreachable
14: ; preds = %2
%15 = load i8**, i8*** %4
%16 = getelementptr inbounds i8*, i8** %15, i64 1
%17 = load i8*, i8** %16
store i8* %17, i8** %6
%18 = load i8*, i8** %6
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0), i8* %18)
ret i32 0
}

LLVM IR (-O2):
@.str.2 = [23 x i8] c"argument received: %s\0A\00"
@str = [25 x i8] c"Hello from execd-prog...\00"
@str.3 = [29 x i8] c"expected one string argument\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @str, i64 0, i64 0))
%4 = icmp eq i32 %0, 2
br i1 %4, label %8, label %5
5: ; preds = %2
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @str.3, i64 0, i64 0))
%7 = tail call i32 @exit(i32 -1)
unreachable
8: ; preds = %2
%9 = getelementptr inbounds i8*, i8** %1, i64 1
%10 = load i8*, i8** %9
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0), i8* %10)
ret i32 0
}