#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 strlen(char *);
int main() {
  char myName[] = "Marti Serra";
  printf("Hello, my name is %s\n", myName);
  int index = strlen(myName) - 1;
  while (index > -1) {
    printf("%c", myName[index]);
    index = index - 1;
  }
  printf("\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    0xeca(%rip),%rax
mov    %rax,-0x10(%rbp)
mov    0xec8(%rip),%eax
mov    %eax,-0x8(%rbp)
lea    -0x10(%rbp),%rsi
lea    0xebe(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    -0x10(%rbp),%rdi
call   1030 <strlen@plt>
sub    $0x1,%eax
mov    %eax,-0x14(%rbp)
cmpl   $0xffffffff,-0x14(%rbp)
jle    1193 <main+0x73>
movslq -0x14(%rbp),%rax
movsbl -0x10(%rbp,%rax,1),%esi
lea    0xea4(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x14(%rbp),%eax
sub    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1164 <main+0x44>
lea    0xe86(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
movabs $0x655320697472614d,%rax
20 53 65
mov    %rax,(%rsp)
movl   $0x617272,0x8(%rsp)
lea    0xeba(%rip),%rdi
mov    %rsp,%rbx
mov    %rbx,%rsi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
call   1040 <strlen@plt>
test   %eax,%eax
jle    1196 <main+0x66>
mov    %eax,%ebx
add    $0x1,%rbx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
lea    -0x2(%rbx),%eax
movsbl (%rsp,%rax,1),%edi
call   1030 <putchar@plt>
add    $0xffffffffffffffff,%rbx
cmp    $0x1,%rbx
ja     1180 <main+0x50>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@__const.main.myName = [12 x i8] c"Marti Serra\00"
@.str = [22 x i8] c"Hello, my name is %s\0A\00"
@.str.1 = [3 x i8] c"%c\00"
@.str.2 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [12 x i8]
%3 = alloca i32
store i32 0, i32* %1
%4 = bitcast [12 x i8]* %2 to i8*
%5 = getelementptr inbounds [12 x i8], [12 x i8]* %2, i64 0, i64 0
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str, i64 0, i64 0), i8* %5)
%7 = getelementptr inbounds [12 x i8], [12 x i8]* %2, i64 0, i64 0
%8 = call i32 @strlen(i8* %7)
%9 = sub nsw i32 %8, 1
store i32 %9, i32* %3
br label %10
10: ; preds = %13, %0
%11 = load i32, i32* %3
%12 = icmp sgt i32 %11, -1
br i1 %12, label %13, label %22
13: ; preds = %10
%14 = load i32, i32* %3
%15 = sext i32 %14 to i64
%16 = getelementptr inbounds [12 x i8], [12 x i8]* %2, i64 0, i64 %15
%17 = load i8, i8* %16
%18 = sext i8 %17 to i32
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %18)
%20 = load i32, i32* %3
%21 = sub nsw i32 %20, 1
store i32 %21, i32* %3
br label %10
22: ; preds = %10
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@__const.main.myName = [12 x i8] c"Marti Serra\00"
@.str = [22 x i8] c"Hello, my name is %s\0A\00"
define i32 @main() {
%1 = alloca [12 x i8]
%2 = getelementptr inbounds [12 x i8], [12 x i8]* %1, i64 0, i64 0
%3 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @.str, i64 0, i64 0), i8* %2)
%4 = call i32 @strlen(i8* %2)
%5 = icmp sgt i32 %4, 0
br i1 %5, label %6, label %17
6: ; preds = %0
%7 = zext i32 %4 to i64
br label %8
8: ; preds = %6, %8
%9 = phi i64 [ %7, %6 ], [ %10, %8 ]
%10 = add nsw i64 %9, -1
%11 = and i64 %10, 4294967295
%12 = getelementptr inbounds [12 x i8], [12 x i8]* %1, i64 0, i64 %11
%13 = load i8, i8* %12
%14 = sext i8 %13 to i32
%15 = call i32 @putchar(i32 %14)
%16 = icmp ugt i64 %9, 1
br i1 %16, label %8, label %17
17: ; preds = %8, %0
%18 = call i32 @putchar(i32 10)
ret i32 0
}