#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 */
char *duplica_string(char *);
int /*<<< orphan*/ free(char *);
int /*<<< orphan*/ printf(char *, char *);
char *voltea_string(char *);
int main(void) {
  char s[50] = "Campos verdes";
  char *s_duplicado;
  char *volteado;
  s_duplicado = duplica_string(s);
  printf("%s\n", s_duplicado);
  volteado = voltea_string(s);
  printf("%s\n", volteado);
  free(s_duplicado);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x50,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x40(%rbp),%rdi
lea    0xe96(%rip),%rsi
mov    $0x32,%edx
call   1060 <memcpy@plt>
lea    -0x40(%rbp),%rdi
call   1050 <duplica_string@plt>
mov    %rax,-0x48(%rbp)
mov    -0x48(%rbp),%rsi
lea    0xea6(%rip),%rdi
call   1040 <printf@plt>
lea    -0x40(%rbp),%rdi
call   1070 <voltea_string@plt>
mov    %rax,-0x50(%rbp)
mov    -0x50(%rbp),%rsi
lea    0xe89(%rip),%rdi
call   1040 <printf@plt>
mov    -0x48(%rbp),%rdi
call   1030 <free@plt>
xor    %eax,%eax
add    $0x50,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x40,%rsp
movaps 0xed0(%rip),%xmm0
movaps %xmm0,0x20(%rsp)
movaps 0xeb4(%rip),%xmm0
movaps %xmm0,0x10(%rsp)
movaps 0xe98(%rip),%xmm0
movaps %xmm0,(%rsp)
movw   $0x0,0x30(%rsp)
mov    %rsp,%r14
mov    %r14,%rdi
call   1050 <duplica_string@plt>
mov    %rax,%rbx
lea    0xeaa(%rip),%r15
mov    %r15,%rdi
mov    %rax,%rsi
call   1040 <printf@plt>
mov    %r14,%rdi
call   1060 <voltea_string@plt>
mov    %r15,%rdi
mov    %rax,%rsi
call   1040 <printf@plt>
mov    %rbx,%rdi
call   1030 <free@plt>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@__const.main.s = [50 x i8] c"Campos verdes\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00"
@.str = [4 x i8] c"%s\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [50 x i8]
%3 = alloca i8*
%4 = alloca i8*
store i32 0, i32* %1
%5 = bitcast [50 x i8]* %2 to i8*
%6 = getelementptr inbounds [50 x i8], [50 x i8]* %2, i64 0, i64 0
%7 = call i8* @duplica_string(i8* %6)
store i8* %7, i8** %3
%8 = load i8*, i8** %3
%9 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* %8)
%10 = getelementptr inbounds [50 x i8], [50 x i8]* %2, i64 0, i64 0
%11 = call i8* @voltea_string(i8* %10)
store i8* %11, i8** %4
%12 = load i8*, i8** %4
%13 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* %12)
%14 = load i8*, i8** %3
%15 = call i32 @free(i8* %14)
ret i32 0
}

LLVM IR (-O2):
@__const.main.s = [50 x i8] c"Campos verdes\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00"
@.str = [4 x i8] c"%s\0A\00"
define i32 @main() {
%1 = alloca [50 x i8]
%2 = getelementptr inbounds [50 x i8], [50 x i8]* %1, i64 0, i64 0
%3 = call i8* @duplica_string(i8* %2)
%4 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* %3)
%5 = call i8* @voltea_string(i8* %2)
%6 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* %5)
%7 = call i32 @free(i8* %3)
ret i32 0
}