#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*/ fprintf(int /*<<< orphan*/, char *);
int /*<<< orphan*/ help();
scalar_t__ malloc(int);
int /*<<< orphan*/ printf(char *, char *);
int /*<<< orphan*/ puts(char *);
int /*<<< orphan*/ stdout;
int /*<<< orphan*/ strcpy(char *, char *);
int main() {
  char *whoami = (char *)malloc(0xdead);
  strcpy(whoami, "I'm an ELF :-)");
  printf("%s", whoami);
  puts("...\n");
  help();
  fprintf(stdout, "\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    $0xdead,%edi
call   1070 <malloc@plt>
mov    %rax,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xe78(%rip),%rsi
call   1030 <strcpy@plt>
mov    -0x10(%rbp),%rsi
lea    0xe77(%rip),%rdi
call   1050 <printf@plt>
lea    0xe6e(%rip),%rdi
call   1040 <puts@plt>
mov    $0x0,%al
call   1080 <help@plt>
mov    0x2e29(%rip),%rax
mov    (%rax),%edi
lea    0xe55(%rip),%rsi
call   1060 <fprintf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    $0xdead,%edi
call   1070 <malloc@plt>
mov    %rax,%rbx
lea    0xe8b(%rip),%rsi
mov    %rax,%rdi
call   1030 <strcpy@plt>
lea    0xe8b(%rip),%rdi
mov    %rbx,%rsi
call   1050 <printf@plt>
lea    0xe7f(%rip),%rdi
call   1040 <puts@plt>
xor    %eax,%eax
call   1080 <help@plt>
mov    0x2e3a(%rip),%rax
mov    (%rax),%edi
lea    0xe66(%rip),%rsi
call   1060 <fprintf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [15 x i8] c"I'm an ELF :-)\00"
@.str.1 = [3 x i8] c"%s\00"
@.str.2 = [5 x i8] c"...\0A\00"
@stdout = global i32 0
@.str.3 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i8*
store i32 0, i32* %1
%3 = call i64 @malloc(i32 57005)
%4 = inttoptr i64 %3 to i8*
store i8* %4, i8** %2
%5 = load i8*, i8** %2
%6 = call i32 @strcpy(i8* %5, i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0))
%7 = load i8*, i8** %2
%8 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %7)
%9 = call i32 @puts(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0))
%10 = call i32 (...) @help()
%11 = load i32, i32* @stdout
%12 = call i32 @fprintf(i32 %11, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [15 x i8] c"I'm an ELF :-)\00"
@.str.1 = [3 x i8] c"%s\00"
@.str.2 = [5 x i8] c"...\0A\00"
@stdout = global i32 0
@.str.3 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = tail call i64 @malloc(i32 57005)
%2 = inttoptr i64 %1 to i8*
%3 = tail call i32 @strcpy(i8* %2, i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0))
%4 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %2)
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0))
%6 = tail call i32 (...) @help()
%7 = load i32, i32* @stdout
%8 = tail call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
ret i32 0
}