#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__ isPalindromic(int *, int);
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  printf("Enter number of elements in array\n");
  int N;
  scanf("%d", &N);
  printf("Enter elements of array\n");
  int arr[N], i;
  for (i = 0; i < N; i++)
    scanf("%d", &arr[i]);
  if (isPalindromic(arr, N))
    printf("The array is palindromic");
  else
    printf("The array is not palindromic");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
call   1030 <printf@plt>
lea    0xed1(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
lea    0xec4(%rip),%rdi
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
mov    %rsp,%rcx
mov    %rcx,-0x10(%rbp)
lea    0xf(,%rax,4),%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,-0x28(%rbp)
mov    %rcx,%rsp
mov    %rax,-0x18(%rbp)
movl   $0x0,-0x1c(%rbp)
mov    -0x1c(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    11ca <main+0x9a>
mov    -0x28(%rbp),%rsi
movslq -0x1c(%rbp),%rax
shl    $0x2,%rax
add    %rax,%rsi
lea    0xe6c(%rip),%rdi
call   1050 <scanf@plt>
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    1195 <main+0x65>
mov    -0x28(%rbp),%rdi
mov    -0x8(%rbp),%esi
call   1040 <isPalindromic@plt>
cmp    $0x0,%rax
je     11f1 <main+0xc1>
lea    0xe58(%rip),%rdi
call   1030 <printf@plt>
jmp    11fd <main+0xcd>
lea    0xe60(%rip),%rdi
call   1030 <printf@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x10(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
mov    %rbp,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
mov    %rsp,%rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
push   %rax
lea    0xee4(%rip),%rdi
call   1030 <puts@plt>
lea    0xe9f(%rip),%rdi
lea    -0x2c(%rbp),%rsi
call   1060 <scanf@plt>
lea    0xeea(%rip),%rdi
call   1030 <puts@plt>
mov    %rsp,%r12
mov    -0x2c(%rbp),%eax
mov    %rsp,%r14
lea    0xf(,%rax,4),%rax
and    $0xfffffffffffffff0,%rax
sub    %rax,%r14
mov    %r14,%rsp
mov    -0x2c(%rbp),%esi
test   %esi,%esi
jle    11cc <main+0x8c>
xor    %r13d,%r13d
lea    0xe5e(%rip),%r15
mov    %r14,%rbx
cs nopw 0x0(%rax,%rax,1)
nop
mov    %r15,%rdi
mov    %rbx,%rsi
call   1060 <scanf@plt>
add    $0x1,%r13
movslq -0x2c(%rbp),%rsi
add    $0x4,%rbx
cmp    %rsi,%r13
jl     11b0 <main+0x70>
mov    %r14,%rdi
call   1050 <isPalindromic@plt>
test   %rax,%rax
lea    0xe3e(%rip),%rax
lea    0xe1e(%rip),%rdi
cmove  %rax,%rdi
call   1040 <printf@plt>
mov    %r12,%rsp
xor    %eax,%eax
lea    -0x28(%rbp),%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [35 x i8] c"Enter number of elements in array\0A\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [25 x i8] c"Enter elements of array\0A\00"
@.str.3 = [25 x i8] c"The array is palindromic\00"
@.str.4 = [29 x i8] c"The array is not palindromic\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i8*
%4 = alloca i64
%5 = alloca i32
store i32 0, i32* %1
%6 = call i32 @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%8 = call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.2, i64 0, i64 0))
%9 = load i32, i32* %2
%10 = zext i32 %9 to i64
%11 = call i8* @llvm.stacksave()
store i8* %11, i8** %3
%12 = alloca i32, i64 %10
store i64 %10, i64* %4
store i32 0, i32* %5
br label %13
13: ; preds = %22, %0
%14 = load i32, i32* %5
%15 = load i32, i32* %2
%16 = icmp slt i32 %14, %15
br i1 %16, label %17, label %25
17: ; preds = %13
%18 = load i32, i32* %5
%19 = sext i32 %18 to i64
%20 = getelementptr inbounds i32, i32* %12, i64 %19
%21 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %20)
br label %22
22: ; preds = %17
%23 = load i32, i32* %5
%24 = add nsw i32 %23, 1
store i32 %24, i32* %5
br label %13
25: ; preds = %13
%26 = load i32, i32* %2
%27 = call i64 @isPalindromic(i32* %12, i32 %26)
%28 = icmp ne i64 %27, 0
br i1 %28, label %29, label %31
29: ; preds = %25
%30 = call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0))
br label %33
31: ; preds = %25
%32 = call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.4, i64 0, i64 0))
br label %33
33: ; preds = %31, %29
store i32 0, i32* %1
%34 = load i8*, i8** %3
%35 = load i32, i32* %1
ret i32 %35
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%d\00"
@.str.3 = [25 x i8] c"The array is palindromic\00"
@.str.4 = [29 x i8] c"The array is not palindromic\00"
@str = [34 x i8] c"Enter number of elements in array\00"
@str.5 = [24 x i8] c"Enter elements of array\00"
define i32 @main() {
%1 = alloca i32
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([34 x i8], [34 x i8]* @str, i64 0, i64 0))
%3 = bitcast i32* %1 to i8*
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%5 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @str.5, i64 0, i64 0))
%6 = load i32, i32* %1
%7 = zext i32 %6 to i64
%8 = call i8* @llvm.stacksave()
%9 = alloca i32, i64 %7
%10 = load i32, i32* %1
%11 = icmp sgt i32 %10, 0
br i1 %11, label %12, label %20
12: ; preds = %0, %12
%13 = phi i64 [ %16, %12 ], [ 0, %0 ]
%14 = getelementptr inbounds i32, i32* %9, i64 %13
%15 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %14)
%16 = add nuw nsw i64 %13, 1
%17 = load i32, i32* %1
%18 = sext i32 %17 to i64
%19 = icmp slt i64 %16, %18
br i1 %19, label %12, label %20
20: ; preds = %12, %0
%21 = phi i32 [ %10, %0 ], [ %17, %12 ]
%22 = call i64 @isPalindromic(i32* %9, i32 %21)
%23 = icmp eq i64 %22, 0
%24 = select i1 %23, i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.4, i64 0, i64 0), i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0)
%25 = call i32 @printf(i8* dereferenceable(1) %24)
ret i32 0
}