#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*/ strcasecmp(char *, char *);
int get_mth(char *mon) {
  if (!strcasecmp(mon, "Jan"))
    return 0;
  else if (!strcasecmp(mon, "Feb"))
    return 1;
  else if (!strcasecmp(mon, "Mar"))
    return 2;
  else if (!strcasecmp(mon, "Apr"))
    return 3;
  else if (!strcasecmp(mon, "May"))
    return 4;
  else if (!strcasecmp(mon, "Jun"))
    return 5;
  else if (!strcasecmp(mon, "Jul"))
    return 6;
  else if (!strcasecmp(mon, "Aug"))
    return 7;
  else if (!strcasecmp(mon, "Sep"))
    return 8;
  else if (!strcasecmp(mon, "Oct"))
    return 9;
  else if (!strcasecmp(mon, "Nov"))
    return 10;
  else if (!strcasecmp(mon, "Dec"))
    return 11;
  else
    return -1;
}


x86 assembly (clang, -O0):
<get_mth>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xed9(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    1141 <get_mth+0x31>
movl   $0x0,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xeb8(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    1166 <get_mth+0x56>
movl   $0x1,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xe97(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    118b <get_mth+0x7b>
movl   $0x2,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xe76(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    11b0 <get_mth+0xa0>
movl   $0x3,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xe55(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    11d5 <get_mth+0xc5>
movl   $0x4,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xe34(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    11fa <get_mth+0xea>
movl   $0x5,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xe13(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    121f <get_mth+0x10f>
movl   $0x6,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xdf2(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    1244 <get_mth+0x134>
movl   $0x7,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xdd1(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    1269 <get_mth+0x159>
movl   $0x8,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xdb0(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    128e <get_mth+0x17e>
movl   $0x9,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xd8f(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    12b3 <get_mth+0x1a3>
movl   $0xa,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
mov    -0x10(%rbp),%rdi
lea    0xd6e(%rip),%rsi
call   1030 <strcasecmp@plt>
cmp    $0x0,%eax
jne    12d8 <get_mth+0x1c8>
movl   $0xb,-0x4(%rbp)
jmp    12df <get_mth+0x1cf>
movl   $0xffffffff,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_mth>:
push   %rbx
mov    %rdi,%rbx
lea    0xee5(%rip),%rsi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     1216 <get_mth+0x106>
lea    0xed5(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     121a <get_mth+0x10a>
lea    0xec2(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     1221 <get_mth+0x111>
lea    0xeaf(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     1228 <get_mth+0x118>
lea    0xe9c(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     122f <get_mth+0x11f>
lea    0xe89(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     1236 <get_mth+0x126>
lea    0xe76(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     123d <get_mth+0x12d>
lea    0xe63(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     1244 <get_mth+0x134>
lea    0xe54(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     124b <get_mth+0x13b>
lea    0xe45(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     1252 <get_mth+0x142>
lea    0xe36(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
test   %eax,%eax
je     1259 <get_mth+0x149>
lea    0xe27(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcasecmp@plt>
neg    %eax
sbb    %eax,%eax
or     $0xb,%eax
pop    %rbx
ret
xor    %eax,%eax
pop    %rbx
ret
mov    $0x1,%eax
pop    %rbx
ret
mov    $0x2,%eax
pop    %rbx
ret
mov    $0x3,%eax
pop    %rbx
ret
mov    $0x4,%eax
pop    %rbx
ret
mov    $0x5,%eax
pop    %rbx
ret
mov    $0x6,%eax
pop    %rbx
ret
mov    $0x7,%eax
pop    %rbx
ret
mov    $0x8,%eax
pop    %rbx
ret
mov    $0x9,%eax
pop    %rbx
ret
mov    $0xa,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [4 x i8] c"Jan\00"
@.str.1 = [4 x i8] c"Feb\00"
@.str.2 = [4 x i8] c"Mar\00"
@.str.3 = [4 x i8] c"Apr\00"
@.str.4 = [4 x i8] c"May\00"
@.str.5 = [4 x i8] c"Jun\00"
@.str.6 = [4 x i8] c"Jul\00"
@.str.7 = [4 x i8] c"Aug\00"
@.str.8 = [4 x i8] c"Sep\00"
@.str.9 = [4 x i8] c"Oct\00"
@.str.10 = [4 x i8] c"Nov\00"
@.str.11 = [4 x i8] c"Dec\00"
define i32 @get_mth(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
store i8* %0, i8** %3
%4 = load i8*, i8** %3
%5 = call i32 @strcasecmp(i8* %4, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0))
%6 = icmp ne i32 %5, 0
br i1 %6, label %8, label %7
7: ; preds = %1
store i32 0, i32* %2
br label %64
8: ; preds = %1
%9 = load i8*, i8** %3
%10 = call i32 @strcasecmp(i8* %9, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
%11 = icmp ne i32 %10, 0
br i1 %11, label %13, label %12
12: ; preds = %8
store i32 1, i32* %2
br label %64
13: ; preds = %8
%14 = load i8*, i8** %3
%15 = call i32 @strcasecmp(i8* %14, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%16 = icmp ne i32 %15, 0
br i1 %16, label %18, label %17
17: ; preds = %13
store i32 2, i32* %2
br label %64
18: ; preds = %13
%19 = load i8*, i8** %3
%20 = call i32 @strcasecmp(i8* %19, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
%21 = icmp ne i32 %20, 0
br i1 %21, label %23, label %22
22: ; preds = %18
store i32 3, i32* %2
br label %64
23: ; preds = %18
%24 = load i8*, i8** %3
%25 = call i32 @strcasecmp(i8* %24, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0))
%26 = icmp ne i32 %25, 0
br i1 %26, label %28, label %27
27: ; preds = %23
store i32 4, i32* %2
br label %64
28: ; preds = %23
%29 = load i8*, i8** %3
%30 = call i32 @strcasecmp(i8* %29, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0))
%31 = icmp ne i32 %30, 0
br i1 %31, label %33, label %32
32: ; preds = %28
store i32 5, i32* %2
br label %64
33: ; preds = %28
%34 = load i8*, i8** %3
%35 = call i32 @strcasecmp(i8* %34, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.6, i64 0, i64 0))
%36 = icmp ne i32 %35, 0
br i1 %36, label %38, label %37
37: ; preds = %33
store i32 6, i32* %2
br label %64
38: ; preds = %33
%39 = load i8*, i8** %3
%40 = call i32 @strcasecmp(i8* %39, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.7, i64 0, i64 0))
%41 = icmp ne i32 %40, 0
br i1 %41, label %43, label %42
42: ; preds = %38
store i32 7, i32* %2
br label %64
43: ; preds = %38
%44 = load i8*, i8** %3
%45 = call i32 @strcasecmp(i8* %44, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.8, i64 0, i64 0))
%46 = icmp ne i32 %45, 0
br i1 %46, label %48, label %47
47: ; preds = %43
store i32 8, i32* %2
br label %64
48: ; preds = %43
%49 = load i8*, i8** %3
%50 = call i32 @strcasecmp(i8* %49, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.9, i64 0, i64 0))
%51 = icmp ne i32 %50, 0
br i1 %51, label %53, label %52
52: ; preds = %48
store i32 9, i32* %2
br label %64
53: ; preds = %48
%54 = load i8*, i8** %3
%55 = call i32 @strcasecmp(i8* %54, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.10, i64 0, i64 0))
%56 = icmp ne i32 %55, 0
br i1 %56, label %58, label %57
57: ; preds = %53
store i32 10, i32* %2
br label %64
58: ; preds = %53
%59 = load i8*, i8** %3
%60 = call i32 @strcasecmp(i8* %59, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.11, i64 0, i64 0))
%61 = icmp ne i32 %60, 0
br i1 %61, label %63, label %62
62: ; preds = %58
store i32 11, i32* %2
br label %64
63: ; preds = %58
store i32 -1, i32* %2
br label %64
64: ; preds = %63, %62, %57, %52, %47, %42, %37, %32, %27, %22, %17, %12, %7
%65 = load i32, i32* %2
ret i32 %65
}

LLVM IR (-O2):
@.str = [4 x i8] c"Jan\00"
@.str.1 = [4 x i8] c"Feb\00"
@.str.2 = [4 x i8] c"Mar\00"
@.str.3 = [4 x i8] c"Apr\00"
@.str.4 = [4 x i8] c"May\00"
@.str.5 = [4 x i8] c"Jun\00"
@.str.6 = [4 x i8] c"Jul\00"
@.str.7 = [4 x i8] c"Aug\00"
@.str.8 = [4 x i8] c"Sep\00"
@.str.9 = [4 x i8] c"Oct\00"
@.str.10 = [4 x i8] c"Nov\00"
@.str.11 = [4 x i8] c"Dec\00"
define i32 @get_mth(i8* nocapture %0) {
%2 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0))
%3 = icmp eq i32 %2, 0
br i1 %3, label %38, label %4
4: ; preds = %1
%5 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
%6 = icmp eq i32 %5, 0
br i1 %6, label %38, label %7
7: ; preds = %4
%8 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0))
%9 = icmp eq i32 %8, 0
br i1 %9, label %38, label %10
10: ; preds = %7
%11 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
%12 = icmp eq i32 %11, 0
br i1 %12, label %38, label %13
13: ; preds = %10
%14 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.4, i64 0, i64 0))
%15 = icmp eq i32 %14, 0
br i1 %15, label %38, label %16
16: ; preds = %13
%17 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0))
%18 = icmp eq i32 %17, 0
br i1 %18, label %38, label %19
19: ; preds = %16
%20 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.6, i64 0, i64 0))
%21 = icmp eq i32 %20, 0
br i1 %21, label %38, label %22
22: ; preds = %19
%23 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.7, i64 0, i64 0))
%24 = icmp eq i32 %23, 0
br i1 %24, label %38, label %25
25: ; preds = %22
%26 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.8, i64 0, i64 0))
%27 = icmp eq i32 %26, 0
br i1 %27, label %38, label %28
28: ; preds = %25
%29 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.9, i64 0, i64 0))
%30 = icmp eq i32 %29, 0
br i1 %30, label %38, label %31
31: ; preds = %28
%32 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.10, i64 0, i64 0))
%33 = icmp eq i32 %32, 0
br i1 %33, label %38, label %34
34: ; preds = %31
%35 = tail call i32 @strcasecmp(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.11, i64 0, i64 0))
%36 = icmp eq i32 %35, 0
%37 = select i1 %36, i32 11, i32 -1
br label %38
38: ; preds = %34, %31, %28, %25, %22, %19, %16, %13, %10, %7, %4, %1
%39 = phi i32 [ 0, %1 ], [ 1, %4 ], [ 2, %7 ], [ 3, %10 ], [ 4, %13 ], [ 5, %16 ], [ 6, %19 ], [ 7, %22 ], [ 8, %25 ], [ 9, %28 ], [ 10, %31 ], [ %37, %34 ]
ret i32 %39
}