#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 */
scalar_t__ is_palindrome(int);
int /*<<< orphan*/ printf(char *);
int scanf(char *, int *);
int main(void) {
  printf("Enter a number to see if it's a palindrome.\n");
  printf("> ");
  int v;
  while (scanf("%d", &v) == 1) {
    if (is_palindrome(v)) {
      printf("Yes.\n");
    } else {
      printf("No.\n");
    }
    printf("> ");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
call   1040 <printf@plt>
lea    0xedb(%rip),%rdi
call   1040 <printf@plt>
lea    0xed2(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
cmp    $0x1,%eax
jne    11b0 <main+0x80>
mov    -0x8(%rbp),%edi
call   1030 <is_palindrome@plt>
cmp    $0x0,%rax
je     1193 <main+0x63>
lea    0xeaa(%rip),%rdi
call   1040 <printf@plt>
jmp    119f <main+0x6f>
lea    0xe9f(%rip),%rdi
call   1040 <printf@plt>
lea    0xe87(%rip),%rdi
call   1040 <printf@plt>
jmp    1157 <main+0x27>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x10,%rsp
lea    0xeb2(%rip),%rdi
call   1030 <puts@plt>
lea    0xea0(%rip),%rdi
call   1050 <printf@plt>
lea    0xe97(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1060 <scanf@plt>
cmp    $0x1,%eax
jne    11d0 <main+0x90>
lea    0xeb0(%rip),%r12
lea    0xead(%rip),%r13
lea    0xe70(%rip),%r14
lea    0xe6c(%rip),%r15
lea    0xc(%rsp),%rbx
nopl   0x0(%rax)
mov    0xc(%rsp),%edi
call   1040 <is_palindrome@plt>
test   %rax,%rax
mov    %r13,%rdi
cmove  %r12,%rdi
call   1030 <puts@plt>
mov    %r14,%rdi
call   1050 <printf@plt>
mov    %r15,%rdi
mov    %rbx,%rsi
call   1060 <scanf@plt>
cmp    $0x1,%eax
je     11a0 <main+0x60>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [45 x i8] c"Enter a number to see if it's a palindrome.\0A\00"
@.str.1 = [3 x i8] c"> \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [6 x i8] c"Yes.\0A\00"
@.str.4 = [5 x i8] c"No.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 @printf(i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
br label %5
5: ; preds = %16, %0
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%7 = icmp eq i32 %6, 1
br i1 %7, label %8, label %18
8: ; preds = %5
%9 = load i32, i32* %2
%10 = call i64 @is_palindrome(i32 %9)
%11 = icmp ne i64 %10, 0
br i1 %11, label %12, label %14
12: ; preds = %8
%13 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0))
br label %16
14: ; preds = %8
%15 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0))
br label %16
16: ; preds = %14, %12
%17 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
br label %5
18: ; preds = %5
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"> \00"
@.str.2 = [3 x i8] c"%d\00"
@str = [44 x i8] c"Enter a number to see if it's a palindrome.\00"
@str.5 = [4 x i8] c"No.\00"
@str.6 = [5 x i8] c"Yes.\00"
define i32 @main() {
%1 = alloca i32
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([44 x i8], [44 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%4 = bitcast i32* %1 to i8*
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%6 = icmp eq i32 %5, 1
br i1 %6, label %7, label %16
7: ; preds = %0, %7
%8 = load i32, i32* %1
%9 = call i64 @is_palindrome(i32 %8)
%10 = icmp eq i64 %9, 0
%11 = select i1 %10, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @str.5, i64 0, i64 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @str.6, i64 0, i64 0)
%12 = call i32 @puts(i8* dereferenceable(1) %11)
%13 = call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%14 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%15 = icmp eq i32 %14, 1
br i1 %15, label %7, label %16
16: ; preds = %7, %0
ret i32 0
}