#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*/ strchr(char *, char);
int strlen(char *);
int verify(char *string, char *valid) {
  int i;
  for (i = 0; i < strlen(string); i++)
    if (!strchr(valid, string[i]))
      return 1;
  return 0;
}


x86 assembly (clang, -O0):
<verify>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
movl   $0x0,-0x1c(%rbp)
mov    -0x1c(%rbp),%eax
mov    %eax,-0x20(%rbp)
mov    -0x10(%rbp),%rdi
call   1030 <strlen@plt>
mov    %eax,%ecx
mov    -0x20(%rbp),%eax
cmp    %ecx,%eax
jge    1190 <verify+0x70>
mov    -0x18(%rbp),%rdi
mov    -0x10(%rbp),%rax
movslq -0x1c(%rbp),%rcx
movsbl (%rax,%rcx,1),%esi
call   1040 <strchr@plt>
cmp    $0x0,%eax
jne    117d <verify+0x5d>
movl   $0x1,-0x4(%rbp)
jmp    1197 <verify+0x77>
jmp    1182 <verify+0x62>
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    1137 <verify+0x17>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<verify>:
push   %r15
push   %r14
push   %rbx
mov    %rsi,%r14
mov    %rdi,%r15
call   1030 <strlen@plt>
test   %eax,%eax
jle    1164 <verify+0x44>
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
movsbl (%r15,%rbx,1),%esi
mov    %r14,%rdi
call   1040 <strchr@plt>
test   %eax,%eax
je     1168 <verify+0x48>
add    $0x1,%rbx
mov    %r15,%rdi
call   1030 <strlen@plt>
cltq
cmp    %rax,%rbx
jl     1140 <verify+0x20>
xor    %eax,%eax
jmp    116d <verify+0x4d>
mov    $0x1,%eax
pop    %rbx
pop    %r14
pop    %r15
ret

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

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