#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 /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ scanf(char *, char **);
int /*<<< orphan*/ search(char *, char *);
int main() {
  char text[256], pattern[256];
  printf("Enter the Text: ");
  scanf("%s", &text);
  printf("\nEnter the Pattern to Match: ");
  scanf("%s", &pattern);
  search(text, pattern);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x210,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeb7(%rip),%rdi
call   1030 <printf@plt>
lea    -0x110(%rbp),%rsi
lea    0xeb5(%rip),%rdi
call   1050 <scanf@plt>
lea    0xeac(%rip),%rdi
call   1030 <printf@plt>
lea    -0x210(%rbp),%rsi
lea    0xe96(%rip),%rdi
call   1050 <scanf@plt>
lea    -0x110(%rbp),%rdi
lea    -0x210(%rbp),%rsi
call   1040 <search@plt>
xor    %eax,%eax
add    $0x210,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x200,%rsp
lea    0xebd(%rip),%rdi
call   1030 <printf@plt>
lea    0xec2(%rip),%r15
lea    0x100(%rsp),%r14
mov    %r15,%rdi
mov    %r14,%rsi
call   1050 <scanf@plt>
lea    0xeab(%rip),%rdi
call   1030 <printf@plt>
mov    %rsp,%rbx
mov    %r15,%rdi
mov    %rbx,%rsi
call   1050 <scanf@plt>
mov    %r14,%rdi
mov    %rbx,%rsi
call   1040 <search@plt>
xor    %eax,%eax
add    $0x200,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [17 x i8] c"Enter the Text: \00"
@.str.1 = [3 x i8] c"%s\00"
@.str.2 = [30 x i8] c"\0AEnter the Pattern to Match: \00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [256 x i8]
%3 = alloca [256 x i8]
store i32 0, i32* %1
%4 = call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0))
%5 = bitcast [256 x i8]* %2 to i8**
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8** %5)
%7 = call i32 @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.2, i64 0, i64 0))
%8 = bitcast [256 x i8]* %3 to i8**
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8** %8)
%10 = getelementptr inbounds [256 x i8], [256 x i8]* %2, i64 0, i64 0
%11 = getelementptr inbounds [256 x i8], [256 x i8]* %3, i64 0, i64 0
%12 = call i32 @search(i8* %10, i8* %11)
ret i32 0
}

LLVM IR (-O2):
@.str = [17 x i8] c"Enter the Text: \00"
@.str.1 = [3 x i8] c"%s\00"
@.str.2 = [30 x i8] c"\0AEnter the Pattern to Match: \00"
define i32 @main() {
%1 = alloca [256 x i8]
%2 = alloca [256 x i8]
%3 = getelementptr inbounds [256 x i8], [256 x i8]* %1, i64 0, i64 0
%4 = getelementptr inbounds [256 x i8], [256 x i8]* %2, i64 0, i64 0
%5 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0))
%6 = bitcast [256 x i8]* %1 to i8**
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8** %6)
%8 = call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @.str.2, i64 0, i64 0))
%9 = bitcast [256 x i8]* %2 to i8**
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8** %9)
%11 = call i32 @search(i8* %3, i8* %4)
ret i32 0
}