#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 */
typedef int /*<<< orphan*/ array;

/* Variables and functions */
int binarySearch(int *, int /*<<< orphan*/, int, int);
int /*<<< orphan*/ printf(char *, ...);
int main() {
  int array[] = {4, 6, 1, 7, 2};
  int n = sizeof(array) / sizeof(array[0]);
  int x = 2;
  int result = binarySearch(array, 0, n - 1, x);
  (result == -1) ? printf("No element found\n")
                 : printf("Element exists here: %d\n", result);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
mov    0xeca(%rip),%rax
mov    %rax,-0x20(%rbp)
mov    0xec7(%rip),%rax
mov    %rax,-0x18(%rbp)
mov    0xec5(%rip),%eax
mov    %eax,-0x10(%rbp)
movl   $0x5,-0x24(%rbp)
movl   $0x2,-0x28(%rbp)
lea    -0x20(%rbp),%rdi
mov    -0x24(%rbp),%edx
sub    $0x1,%edx
mov    -0x28(%rbp),%ecx
xor    %esi,%esi
call   1040 <binarySearch@plt>
mov    %eax,-0x2c(%rbp)
cmpl   $0xffffffff,-0x2c(%rbp)
jne    1190 <main+0x70>
lea    0xe90(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11a1 <main+0x81>
mov    -0x2c(%rbp),%esi
lea    0xe8c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
sub    $0x18,%rsp
mov    0xed6(%rip),%eax
mov    %eax,0x10(%rsp)
movaps 0xebb(%rip),%xmm0
movaps %xmm0,(%rsp)
mov    %rsp,%rdi
xor    %esi,%esi
mov    $0x4,%edx
mov    $0x2,%ecx
call   1050 <binarySearch@plt>
cmp    $0xffffffff,%eax
je     1174 <main+0x44>
lea    0xeab(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
jmp    1180 <main+0x50>
lea    0xeb2(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
add    $0x18,%rsp
ret

LLVM IR (-O0):
@__const.main.array = [5 x i32] [i32 4, i32 6, i32 1, i32 7, i32 2]
@.str = [18 x i8] c"No element found\0A\00"
@.str.1 = [25 x i8] c"Element exists here: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [5 x i32]
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
store i32 0, i32* %1
%6 = bitcast [5 x i32]* %2 to i8*
store i32 5, i32* %3
store i32 2, i32* %4
%7 = getelementptr inbounds [5 x i32], [5 x i32]* %2, i64 0, i64 0
%8 = load i32, i32* %3
%9 = sub nsw i32 %8, 1
%10 = load i32, i32* %4
%11 = call i32 @binarySearch(i32* %7, i32 0, i32 %9, i32 %10)
store i32 %11, i32* %5
%12 = load i32, i32* %5
%13 = icmp eq i32 %12, -1
br i1 %13, label %14, label %16
14: ; preds = %0
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str, i64 0, i64 0))
br label %19
16: ; preds = %0
%17 = load i32, i32* %5
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), i32 %17)
br label %19
19: ; preds = %16, %14
%20 = phi i32 [ %15, %14 ], [ %18, %16 ]
ret i32 0
}

LLVM IR (-O2):
@__const.main.array = [5 x i32] [i32 4, i32 6, i32 1, i32 7, i32 2]
@.str.1 = [25 x i8] c"Element exists here: %d\0A\00"
@str = [17 x i8] c"No element found\00"
define i32 @main() {
%1 = alloca [5 x i32]
%2 = bitcast [5 x i32]* %1 to i8*
%3 = getelementptr inbounds [5 x i32], [5 x i32]* %1, i64 0, i64 0
%4 = call i32 @binarySearch(i32* %3, i32 0, i32 4, i32 2)
%5 = icmp eq i32 %4, -1
br i1 %5, label %6, label %8
6: ; preds = %0
%7 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @str, i64 0, i64 0))
br label %10
8: ; preds = %0
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0), i32 %4)
br label %10
10: ; preds = %8, %6
ret i32 0
}