#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 *malloc(int);
int /*<<< orphan*/ print_reverse(int, int *);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  int n;
  scanf("%d", &n);
  int *arr = malloc(sizeof(int) * n);
  for (int arr_i = 0; arr_i < n; arr_i++) {
    scanf("%d", &arr[arr_i]);
  }
  print_reverse(n, arr);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movslq -0x8(%rbp),%rax
shl    $0x2,%rax
mov    %eax,%edi
call   1030 <malloc@plt>
mov    %rax,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    119e <main+0x6e>
mov    -0x10(%rbp),%rsi
movslq -0x14(%rbp),%rax
shl    $0x2,%rax
add    %rax,%rsi
lea    0xe75(%rip),%rdi
call   1040 <scanf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1169 <main+0x39>
mov    -0x8(%rbp),%edi
mov    -0x10(%rbp),%rsi
call   1050 <print_reverse@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x10,%rsp
lea    0xebc(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1040 <scanf@plt>
mov    0xc(%rsp),%r12d
lea    0x0(,%r12,4),%edi
call   1030 <malloc@plt>
mov    %rax,%r14
test   %r12d,%r12d
jle    119d <main+0x6d>
xor    %r13d,%r13d
lea    0xe8e(%rip),%r15
mov    %r14,%rbx
cs nopw 0x0(%rax,%rax,1)
nop
mov    %r15,%rdi
mov    %rbx,%rsi
call   1040 <scanf@plt>
add    $0x1,%r13
movslq 0xc(%rsp),%r12
add    $0x4,%rbx
cmp    %r12,%r13
jl     1180 <main+0x50>
mov    %r12d,%edi
mov    %r14,%rsi
call   1050 <print_reverse@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32*
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
%6 = load i32, i32* %2
%7 = sext i32 %6 to i64
%8 = mul i64 4, %7
%9 = trunc i64 %8 to i32
%10 = call i32* @malloc(i32 %9)
store i32* %10, i32** %3
store i32 0, i32* %4
br label %11
11: ; preds = %21, %0
%12 = load i32, i32* %4
%13 = load i32, i32* %2
%14 = icmp slt i32 %12, %13
br i1 %14, label %15, label %24
15: ; preds = %11
%16 = load i32*, i32** %3
%17 = load i32, i32* %4
%18 = sext i32 %17 to i64
%19 = getelementptr inbounds i32, i32* %16, i64 %18
%20 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %19)
br label %21
21: ; preds = %15
%22 = load i32, i32* %4
%23 = add nsw i32 %22, 1
store i32 %23, i32* %4
br label %11
24: ; preds = %11
%25 = load i32, i32* %2
%26 = load i32*, i32** %3
%27 = call i32 @print_reverse(i32 %25, i32* %26)
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%4 = load i32, i32* %1
%5 = shl i32 %4, 2
%6 = call i32* @malloc(i32 %5)
%7 = icmp sgt i32 %4, 0
br i1 %7, label %11, label %8
8: ; preds = %11, %0
%9 = phi i32 [ %4, %0 ], [ %16, %11 ]
%10 = call i32 @print_reverse(i32 %9, i32* %6)
ret i32 0
11: ; preds = %0, %11
%12 = phi i64 [ %15, %11 ], [ 0, %0 ]
%13 = getelementptr inbounds i32, i32* %6, i64 %12
%14 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %13)
%15 = add nuw nsw i64 %12, 1
%16 = load i32, i32* %1
%17 = sext i32 %16 to i64
%18 = icmp slt i64 %15, %17
br i1 %18, label %11, label %8
}