#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 linearSearch(int *, int, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  int arr[' '], arrSize, search, i;
  printf("Enter size of the array ::");
  scanf("%d", &arrSize);
  printf("\nEnter elements of the array ::\n");
  for (i = 0; i < arrSize; i++)
    scanf("%d", &arr[i]);
  printf("Enter the number to be searched ::\n");
  scanf("%d", &search);
  int c = linearSearch(arr, arrSize, search);
  if (c != -1)
    printf("%d is present at location %d.\n", search, c + 1);
  else
    printf("%d is not present in array.\n", search);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0xa0,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeb7(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xec4(%rip),%rdi
lea    -0x94(%rbp),%rsi
call   1050 <scanf@plt>
lea    0xeb4(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x0,-0x9c(%rbp)
mov    -0x9c(%rbp),%eax
cmp    -0x94(%rbp),%eax
jge    11c2 <main+0x92>
movslq -0x9c(%rbp),%rax
lea    -0x90(%rbp),%rsi
shl    $0x2,%rax
add    %rax,%rsi
lea    0xe72(%rip),%rdi
call   1050 <scanf@plt>
mov    -0x9c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x9c(%rbp)
jmp    117b <main+0x4b>
lea    0xe76(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xe44(%rip),%rdi
lea    -0x98(%rbp),%rsi
call   1050 <scanf@plt>
lea    -0x90(%rbp),%rdi
mov    -0x94(%rbp),%esi
mov    -0x98(%rbp),%edx
call   1030 <linearSearch@plt>
mov    %eax,-0xa0(%rbp)
cmpl   $0xffffffff,-0xa0(%rbp)
je     1230 <main+0x100>
mov    -0x98(%rbp),%esi
mov    -0xa0(%rbp),%edx
add    $0x1,%edx
lea    0xe3f(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
jmp    1244 <main+0x114>
mov    -0x98(%rbp),%esi
lea    0xe45(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0xa0,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x90,%rsp
lea    0xead(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xeba(%rip),%rdi
lea    0x8(%rsp),%rsi
call   1060 <scanf@plt>
lea    0xee8(%rip),%rdi
call   1040 <puts@plt>
cmpl   $0x0,0x8(%rsp)
jle    11ad <main+0x6d>
lea    0x10(%rsp),%r15
xor    %ebx,%ebx
lea    0xe8f(%rip),%r14
nopl   0x0(%rax)
mov    %r14,%rdi
mov    %r15,%rsi
call   1060 <scanf@plt>
add    $0x1,%rbx
movslq 0x8(%rsp),%rax
add    $0x4,%r15
cmp    %rax,%rbx
jl     1190 <main+0x50>
lea    0xec6(%rip),%rdi
call   1040 <puts@plt>
lea    0xe5b(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1060 <scanf@plt>
mov    0x8(%rsp),%esi
mov    0xc(%rsp),%edx
lea    0x10(%rsp),%rdi
call   1030 <linearSearch@plt>
mov    0xc(%rsp),%esi
cmp    $0xffffffff,%eax
je     11fa <main+0xba>
add    $0x1,%eax
lea    0xe2f(%rip),%rdi
mov    %eax,%edx
xor    %eax,%eax
call   1050 <printf@plt>
jmp    1208 <main+0xc8>
lea    0xe3c(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
xor    %eax,%eax
add    $0x90,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [27 x i8] c"Enter size of the array ::\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [33 x i8] c"\0AEnter elements of the array ::\0A\00"
@.str.3 = [36 x i8] c"Enter the number to be searched ::\0A\00"
@.str.4 = [31 x i8] c"%d is present at location %d.\0A\00"
@.str.5 = [29 x i8] c"%d is not present in array.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [32 x i32]
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
%6 = alloca i32
store i32 0, i32* %1
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.2, i64 0, i64 0))
store i32 0, i32* %5
br label %10
10: ; preds = %19, %0
%11 = load i32, i32* %5
%12 = load i32, i32* %3
%13 = icmp slt i32 %11, %12
br i1 %13, label %14, label %22
14: ; preds = %10
%15 = load i32, i32* %5
%16 = sext i32 %15 to i64
%17 = getelementptr inbounds [32 x i32], [32 x i32]* %2, i64 0, i64 %16
%18 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %17)
br label %19
19: ; preds = %14
%20 = load i32, i32* %5
%21 = add nsw i32 %20, 1
store i32 %21, i32* %5
br label %10
22: ; preds = %10
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str.3, i64 0, i64 0))
%24 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %4)
%25 = getelementptr inbounds [32 x i32], [32 x i32]* %2, i64 0, i64 0
%26 = load i32, i32* %3
%27 = load i32, i32* %4
%28 = call i32 @linearSearch(i32* %25, i32 %26, i32 %27)
store i32 %28, i32* %6
%29 = load i32, i32* %6
%30 = icmp ne i32 %29, -1
br i1 %30, label %31, label %36
31: ; preds = %22
%32 = load i32, i32* %4
%33 = load i32, i32* %6
%34 = add nsw i32 %33, 1
%35 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.4, i64 0, i64 0), i32 %32, i32 %34)
br label %39
36: ; preds = %22
%37 = load i32, i32* %4
%38 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.5, i64 0, i64 0), i32 %37)
br label %39
39: ; preds = %36, %31
ret i32 0
}

LLVM IR (-O2):
@.str = [27 x i8] c"Enter size of the array ::\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.4 = [31 x i8] c"%d is present at location %d.\0A\00"
@.str.5 = [29 x i8] c"%d is not present in array.\0A\00"
@str = [32 x i8] c"\0AEnter elements of the array ::\00"
@str.6 = [35 x i8] c"Enter the number to be searched ::\00"
define i32 @main() {
%1 = alloca [32 x i32]
%2 = alloca i32
%3 = alloca i32
%4 = bitcast [32 x i32]* %1 to i8*
%5 = bitcast i32* %2 to i8*
%6 = bitcast i32* %3 to i8*
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%9 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str, i64 0, i64 0))
%10 = load i32, i32* %2
%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 [32 x i32], [32 x i32]* %1, i64 0, 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* %2
%18 = sext i32 %17 to i64
%19 = icmp slt i64 %16, %18
br i1 %19, label %12, label %20
20: ; preds = %12, %0
%21 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @str.6, i64 0, i64 0))
%22 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%23 = getelementptr inbounds [32 x i32], [32 x i32]* %1, i64 0, i64 0
%24 = load i32, i32* %2
%25 = load i32, i32* %3
%26 = call i32 @linearSearch(i32* %23, i32 %24, i32 %25)
%27 = icmp eq i32 %26, -1
%28 = load i32, i32* %3
br i1 %27, label %32, label %29
29: ; preds = %20
%30 = add nuw nsw i32 %26, 1
%31 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str.4, i64 0, i64 0), i32 %28, i32 %30)
br label %34
32: ; preds = %20
%33 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.5, i64 0, i64 0), i32 %28)
br label %34
34: ; preds = %32, %29
ret i32 0
}