#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*/ memcmp(char const *, char const *, int);
int nrg_ident_chunk(const char *chunk_id) {
  static const char *chunk[] = {"CUEX", "CUES", "DAOX", "DAOI", "SINF",
                                "ETNF", "ETN2", "END!", "NERO", "NER5",
                                "CUES", "DAOI", NULL};
  int x = 0;
  for (x = 0; chunk[x]; x++)
    if (!memcmp(chunk[x], chunk_id, 4))
      return (!0);
  return 0;
}


x86 assembly (clang, -O0):
<nrg_ident_chunk>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
movl   $0x0,-0x14(%rbp)
movslq -0x14(%rbp),%rcx
lea    0x2efb(%rip),%rax
cmpq   $0x0,(%rax,%rcx,8)
je     1185 <nrg_ident_chunk+0x75>
movslq -0x14(%rbp),%rcx
lea    0x2ee5(%rip),%rax
mov    (%rax,%rcx,8),%rdi
mov    -0x10(%rbp),%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
cmp    $0x0,%eax
jne    1172 <nrg_ident_chunk+0x62>
movl   $0x1,-0x4(%rbp)
jmp    118c <nrg_ident_chunk+0x7c>
jmp    1177 <nrg_ident_chunk+0x67>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    112a <nrg_ident_chunk+0x1a>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<nrg_ident_chunk>:
push   %rbp
push   %rbx
push   %rax
mov    %rdi,%rbx
lea    0xee3(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
mov    $0x1,%ebp
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xec7(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xeb0(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xe99(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xe82(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xe6b(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xe54(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xe41(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xe2e(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xe1b(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xddb(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
test   %eax,%eax
je     1257 <nrg_ident_chunk+0x147>
lea    0xdcd(%rip),%rdi
mov    %rbx,%rsi
mov    $0x4,%edx
call   1030 <memcmp@plt>
xor    %ebp,%ebp
test   %eax,%eax
sete   %bpl
mov    %ebp,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@nrg_ident_chunk.chunk = internal global [13 x i8*] [i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.5, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.7, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.8, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.9, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i32 0, i32 0), i8* null]
@.str = [5 x i8] c"CUEX\00"
@.str.1 = [5 x i8] c"CUES\00"
@.str.2 = [5 x i8] c"DAOX\00"
@.str.3 = [5 x i8] c"DAOI\00"
@.str.4 = [5 x i8] c"SINF\00"
@.str.5 = [5 x i8] c"ETNF\00"
@.str.6 = [5 x i8] c"ETN2\00"
@.str.7 = [5 x i8] c"END!\00"
@.str.8 = [5 x i8] c"NERO\00"
@.str.9 = [5 x i8] c"NER5\00"
define i32 @nrg_ident_chunk(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
%4 = alloca i32
store i8* %0, i8** %3
store i32 0, i32* %4
store i32 0, i32* %4
br label %5
5: ; preds = %21, %1
%6 = load i32, i32* %4
%7 = sext i32 %6 to i64
%8 = getelementptr inbounds [13 x i8*], [13 x i8*]* @nrg_ident_chunk.chunk, i64 0, i64 %7
%9 = load i8*, i8** %8
%10 = icmp ne i8* %9, null
br i1 %10, label %11, label %24
11: ; preds = %5
%12 = load i32, i32* %4
%13 = sext i32 %12 to i64
%14 = getelementptr inbounds [13 x i8*], [13 x i8*]* @nrg_ident_chunk.chunk, i64 0, i64 %13
%15 = load i8*, i8** %14
%16 = load i8*, i8** %3
%17 = call i32 @memcmp(i8* %15, i8* %16, i32 4)
%18 = icmp ne i32 %17, 0
br i1 %18, label %20, label %19
19: ; preds = %11
store i32 1, i32* %2
br label %25
20: ; preds = %11
br label %21
21: ; preds = %20
%22 = load i32, i32* %4
%23 = add nsw i32 %22, 1
store i32 %23, i32* %4
br label %5
24: ; preds = %5
store i32 0, i32* %2
br label %25
25: ; preds = %24, %19
%26 = load i32, i32* %2
ret i32 %26
}

LLVM IR (-O2):
@.str = [5 x i8] c"CUEX\00"
@.str.1 = [5 x i8] c"CUES\00"
@.str.2 = [5 x i8] c"DAOX\00"
@.str.3 = [5 x i8] c"DAOI\00"
@.str.4 = [5 x i8] c"SINF\00"
@.str.5 = [5 x i8] c"ETNF\00"
@.str.6 = [5 x i8] c"ETN2\00"
@.str.7 = [5 x i8] c"END!\00"
@.str.8 = [5 x i8] c"NERO\00"
@.str.9 = [5 x i8] c"NER5\00"
define i32 @nrg_ident_chunk(i8* %0) {
%2 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8* %0, i32 4)
%3 = icmp eq i32 %2, 0
br i1 %3, label %38, label %4
4: ; preds = %1
%5 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i8* %0, i32 4)
%6 = icmp eq i32 %5, 0
br i1 %6, label %38, label %7
7: ; preds = %4
%8 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i8* %0, i32 4)
%9 = icmp eq i32 %8, 0
br i1 %9, label %38, label %10
10: ; preds = %7
%11 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i8* %0, i32 4)
%12 = icmp eq i32 %11, 0
br i1 %12, label %38, label %13
13: ; preds = %10
%14 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.4, i64 0, i64 0), i8* %0, i32 4)
%15 = icmp eq i32 %14, 0
br i1 %15, label %38, label %16
16: ; preds = %13
%17 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.5, i64 0, i64 0), i8* %0, i32 4)
%18 = icmp eq i32 %17, 0
br i1 %18, label %38, label %19
19: ; preds = %16
%20 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i64 0, i64 0), i8* %0, i32 4)
%21 = icmp eq i32 %20, 0
br i1 %21, label %38, label %22
22: ; preds = %19
%23 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.7, i64 0, i64 0), i8* %0, i32 4)
%24 = icmp eq i32 %23, 0
br i1 %24, label %38, label %25
25: ; preds = %22
%26 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.8, i64 0, i64 0), i8* %0, i32 4)
%27 = icmp eq i32 %26, 0
br i1 %27, label %38, label %28
28: ; preds = %25
%29 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.9, i64 0, i64 0), i8* %0, i32 4)
%30 = icmp eq i32 %29, 0
br i1 %30, label %38, label %31
31: ; preds = %28
%32 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i8* %0, i32 4)
%33 = icmp eq i32 %32, 0
br i1 %33, label %38, label %34
34: ; preds = %31
%35 = tail call i32 @memcmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i8* %0, i32 4)
%36 = icmp eq i32 %35, 0
%37 = zext i1 %36 to i32
br label %38
38: ; preds = %34, %31, %28, %25, %22, %19, %16, %13, %10, %7, %4, %1
%39 = phi i32 [ 1, %1 ], [ 1, %4 ], [ 1, %7 ], [ 1, %10 ], [ 1, %13 ], [ 1, %16 ], [ 1, %19 ], [ 1, %22 ], [ 1, %25 ], [ 1, %28 ], [ 1, %31 ], [ %37, %34 ]
ret i32 %39
}