#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__ strstr(char *, char *);
int exist_arg(char *str_to_find, int narg, char **arg) {
  int i;
  for (i = 0; i < narg; i++)
    if (strstr(arg[i], str_to_find))
      return 1;
  return 0;
}


x86 assembly (clang, -O0):
<exist_arg>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x10(%rbp)
mov    %esi,-0x14(%rbp)
mov    %rdx,-0x20(%rbp)
movl   $0x0,-0x24(%rbp)
mov    -0x24(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    1174 <exist_arg+0x64>
mov    -0x20(%rbp),%rax
movslq -0x24(%rbp),%rcx
mov    (%rax,%rcx,8),%rdi
mov    -0x10(%rbp),%rsi
call   1030 <strstr@plt>
cmp    $0x0,%rax
je     1161 <exist_arg+0x51>
movl   $0x1,-0x4(%rbp)
jmp    117b <exist_arg+0x6b>
jmp    1166 <exist_arg+0x56>
mov    -0x24(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x24(%rbp)
jmp    112a <exist_arg+0x1a>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<exist_arg>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
test   %esi,%esi
jle    114a <exist_arg+0x3a>
mov    %rdx,%r14
mov    %rdi,%r15
mov    %esi,%r12d
xor    %ebx,%ebx
nopw   0x0(%rax,%rax,1)
mov    (%r14,%rbx,8),%rdi
mov    %r15,%rsi
call   1030 <strstr@plt>
test   %rax,%rax
jne    114e <exist_arg+0x3e>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1130 <exist_arg+0x20>
xor    %eax,%eax
jmp    1153 <exist_arg+0x43>
mov    $0x1,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
define i32 @exist_arg(i8* %0, i32 %1, i8** %2) {
%4 = alloca i32
%5 = alloca i8*
%6 = alloca i32
%7 = alloca i8**
%8 = alloca i32
store i8* %0, i8** %5
store i32 %1, i32* %6
store i8** %2, i8*** %7
store i32 0, i32* %8
br label %9
9: ; preds = %24, %3
%10 = load i32, i32* %8
%11 = load i32, i32* %6
%12 = icmp slt i32 %10, %11
br i1 %12, label %13, label %27
13: ; preds = %9
%14 = load i8**, i8*** %7
%15 = load i32, i32* %8
%16 = sext i32 %15 to i64
%17 = getelementptr inbounds i8*, i8** %14, i64 %16
%18 = load i8*, i8** %17
%19 = load i8*, i8** %5
%20 = call i64 @strstr(i8* %18, i8* %19)
%21 = icmp ne i64 %20, 0
br i1 %21, label %22, label %23
22: ; preds = %13
store i32 1, i32* %4
br label %28
23: ; preds = %13
br label %24
24: ; preds = %23
%25 = load i32, i32* %8
%26 = add nsw i32 %25, 1
store i32 %26, i32* %8
br label %9
27: ; preds = %9
store i32 0, i32* %4
br label %28
28: ; preds = %27, %22
%29 = load i32, i32* %4
ret i32 %29
}

LLVM IR (-O2):
define i32 @exist_arg(i8* %0, i32 %1, i8** nocapture %2) {
%4 = icmp sgt i32 %1, 0
br i1 %4, label %5, label %16
5: ; preds = %3
%6 = zext i32 %1 to i64
br label %9
7: ; preds = %9
%8 = icmp eq i64 %15, %6
br i1 %8, label %16, label %9
9: ; preds = %5, %7
%10 = phi i64 [ 0, %5 ], [ %15, %7 ]
%11 = getelementptr inbounds i8*, i8** %2, i64 %10
%12 = load i8*, i8** %11
%13 = tail call i64 @strstr(i8* %12, i8* %0)
%14 = icmp eq i64 %13, 0
%15 = add nuw nsw i64 %10, 1
br i1 %14, label %7, label %16
16: ; preds = %9, %7, %3
%17 = phi i32 [ 0, %3 ], [ 0, %7 ], [ 1, %9 ]
ret i32 %17
}