#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__ strcasecmp(char *, char *);
int check_stamp(char *stamp) {
  if (strcasecmp("none", stamp) == 0)
    return (0);
  else if (strcasecmp("unix", stamp) == 0)
    return (10);
  else if (strcasecmp("time", stamp) == 0)
    return (8);
  else if (strcasecmp("day", stamp) == 0)
    return (11);
  else if (strcasecmp("month", stamp) == 0)
    return (14);
  else if (strcasecmp("year", stamp) == 0)
    return (17);
  else if (strcasecmp("full", stamp) == 0)
    return (19);
  else
    return (-1);
}


x86 assembly (clang, -O0):
<check_stamp>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rsi
lea    0xed9(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    1142 <check_stamp+0x32>
movl   $0x0,-0x4(%rbp)
jmp    122d <check_stamp+0x11d>
mov    -0x10(%rbp),%rsi
lea    0xeb8(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    1168 <check_stamp+0x58>
movl   $0xa,-0x4(%rbp)
jmp    122d <check_stamp+0x11d>
mov    -0x10(%rbp),%rsi
lea    0xe97(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    118e <check_stamp+0x7e>
movl   $0x8,-0x4(%rbp)
jmp    122d <check_stamp+0x11d>
mov    -0x10(%rbp),%rsi
lea    0xe76(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    11b4 <check_stamp+0xa4>
movl   $0xb,-0x4(%rbp)
jmp    122d <check_stamp+0x11d>
mov    -0x10(%rbp),%rsi
lea    0xe54(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    11da <check_stamp+0xca>
movl   $0xe,-0x4(%rbp)
jmp    122d <check_stamp+0x11d>
mov    -0x10(%rbp),%rsi
lea    0xe34(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    1200 <check_stamp+0xf0>
movl   $0x11,-0x4(%rbp)
jmp    122d <check_stamp+0x11d>
mov    -0x10(%rbp),%rsi
lea    0xe13(%rip),%rdi
call   1030 <strcasecmp@plt>
cmp    $0x0,%rax
jne    1226 <check_stamp+0x116>
movl   $0x13,-0x4(%rbp)
jmp    122d <check_stamp+0x11d>
movl   $0xffffffff,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<check_stamp>:
push   %rbx
mov    %rdi,%rbx
lea    0xee5(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11a5 <check_stamp+0x95>
lea    0xed6(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11a9 <check_stamp+0x99>
lea    0xec7(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11b0 <check_stamp+0xa0>
lea    0xeb8(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11b7 <check_stamp+0xa7>
lea    0xea8(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11be <check_stamp+0xae>
lea    0xe9a(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
test   %rax,%rax
je     11c5 <check_stamp+0xb5>
lea    0xe8b(%rip),%rdi
mov    %rbx,%rsi
call   1030 <strcasecmp@plt>
neg    %rax
sbb    %eax,%eax
or     $0x13,%eax
pop    %rbx
ret
xor    %eax,%eax
pop    %rbx
ret
mov    $0xa,%eax
pop    %rbx
ret
mov    $0x8,%eax
pop    %rbx
ret
mov    $0xb,%eax
pop    %rbx
ret
mov    $0xe,%eax
pop    %rbx
ret
mov    $0x11,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [5 x i8] c"none\00"
@.str.1 = [5 x i8] c"unix\00"
@.str.2 = [5 x i8] c"time\00"
@.str.3 = [4 x i8] c"day\00"
@.str.4 = [6 x i8] c"month\00"
@.str.5 = [5 x i8] c"year\00"
@.str.6 = [5 x i8] c"full\00"
define i32 @check_stamp(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
store i8* %0, i8** %3
%4 = load i8*, i8** %3
%5 = call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8* %4)
%6 = icmp eq i64 %5, 0
br i1 %6, label %7, label %8
7: ; preds = %1
store i32 0, i32* %2
br label %39
8: ; preds = %1
%9 = load i8*, i8** %3
%10 = call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i8* %9)
%11 = icmp eq i64 %10, 0
br i1 %11, label %12, label %13
12: ; preds = %8
store i32 10, i32* %2
br label %39
13: ; preds = %8
%14 = load i8*, i8** %3
%15 = call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i8* %14)
%16 = icmp eq i64 %15, 0
br i1 %16, label %17, label %18
17: ; preds = %13
store i32 8, i32* %2
br label %39
18: ; preds = %13
%19 = load i8*, i8** %3
%20 = call i64 @strcasecmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i8* %19)
%21 = icmp eq i64 %20, 0
br i1 %21, label %22, label %23
22: ; preds = %18
store i32 11, i32* %2
br label %39
23: ; preds = %18
%24 = load i8*, i8** %3
%25 = call i64 @strcasecmp(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i8* %24)
%26 = icmp eq i64 %25, 0
br i1 %26, label %27, label %28
27: ; preds = %23
store i32 14, i32* %2
br label %39
28: ; preds = %23
%29 = load i8*, i8** %3
%30 = call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.5, i64 0, i64 0), i8* %29)
%31 = icmp eq i64 %30, 0
br i1 %31, label %32, label %33
32: ; preds = %28
store i32 17, i32* %2
br label %39
33: ; preds = %28
%34 = load i8*, i8** %3
%35 = call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i64 0, i64 0), i8* %34)
%36 = icmp eq i64 %35, 0
br i1 %36, label %37, label %38
37: ; preds = %33
store i32 19, i32* %2
br label %39
38: ; preds = %33
store i32 -1, i32* %2
br label %39
39: ; preds = %38, %37, %32, %27, %22, %17, %12, %7
%40 = load i32, i32* %2
ret i32 %40
}

LLVM IR (-O2):
@.str = [5 x i8] c"none\00"
@.str.1 = [5 x i8] c"unix\00"
@.str.2 = [5 x i8] c"time\00"
@.str.3 = [4 x i8] c"day\00"
@.str.4 = [6 x i8] c"month\00"
@.str.5 = [5 x i8] c"year\00"
@.str.6 = [5 x i8] c"full\00"
define i32 @check_stamp(i8* nocapture %0) {
%2 = tail call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8* %0)
%3 = icmp eq i64 %2, 0
br i1 %3, label %23, label %4
4: ; preds = %1
%5 = tail call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%6 = icmp eq i64 %5, 0
br i1 %6, label %23, label %7
7: ; preds = %4
%8 = tail call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i8* %0)
%9 = icmp eq i64 %8, 0
br i1 %9, label %23, label %10
10: ; preds = %7
%11 = tail call i64 @strcasecmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i8* %0)
%12 = icmp eq i64 %11, 0
br i1 %12, label %23, label %13
13: ; preds = %10
%14 = tail call i64 @strcasecmp(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i8* %0)
%15 = icmp eq i64 %14, 0
br i1 %15, label %23, label %16
16: ; preds = %13
%17 = tail call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.5, i64 0, i64 0), i8* %0)
%18 = icmp eq i64 %17, 0
br i1 %18, label %23, label %19
19: ; preds = %16
%20 = tail call i64 @strcasecmp(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.6, i64 0, i64 0), i8* %0)
%21 = icmp eq i64 %20, 0
%22 = select i1 %21, i32 19, i32 -1
br label %23
23: ; preds = %19, %16, %13, %10, %7, %4, %1
%24 = phi i32 [ 0, %1 ], [ 10, %4 ], [ 8, %7 ], [ 11, %10 ], [ 14, %13 ], [ 17, %16 ], [ %22, %19 ]
ret i32 %24
}