int hdate_get_holyday_type(int holyday) {
  int holyday_type;
  switch (holyday) {
  case 0:
    holyday_type = 0;
    break;
  case 1:
  case 2:
  case 4:
  case 5:
  case 8:
  case 15:
  case 20:
  case 27:
  case 28:
  case 29:
  case 30:
  case 31:
  case 32:
    holyday_type = 1;
    break;
  case 37:
    holyday_type = 2;
    break;
  case 6:
  case 7:
  case 16:
    holyday_type = 3;
    break;
  case 9:
  case 13:
  case 14:
    holyday_type = 4;
    break;
  case 3:
  case 10:
  case 12:
  case 21:
  case 22:
    holyday_type = 5;
    break;
  case 17:
  case 26:
    holyday_type = 6;
    break;
  case 18:
  case 23:
  case 11:
    holyday_type = 7;
    break;
  case 24:
  case 25:
    holyday_type = 8;
    break;
  default:
    holyday_type = 9;
    break;
  }
  return holyday_type;
}


x86 assembly (clang, -O0):
<hdate_get_holyday_type>:
push   %rbp
mov    %rsp,%rbp
mov    %edi,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    %rax,-0x10(%rbp)
sub    $0x25,%rax
ja     1198 <hdate_get_holyday_type+0x98>
mov    -0x10(%rbp),%rax
lea    0xedd(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
movl   $0x0,-0x8(%rbp)
jmp    119f <hdate_get_holyday_type+0x9f>
movl   $0x1,-0x8(%rbp)
jmp    119f <hdate_get_holyday_type+0x9f>
movl   $0x2,-0x8(%rbp)
jmp    119f <hdate_get_holyday_type+0x9f>
movl   $0x3,-0x8(%rbp)
jmp    119f <hdate_get_holyday_type+0x9f>
movl   $0x4,-0x8(%rbp)
jmp    119f <hdate_get_holyday_type+0x9f>
movl   $0x5,-0x8(%rbp)
jmp    119f <hdate_get_holyday_type+0x9f>
movl   $0x6,-0x8(%rbp)
jmp    119f <hdate_get_holyday_type+0x9f>
movl   $0x7,-0x8(%rbp)
jmp    119f <hdate_get_holyday_type+0x9f>
movl   $0x8,-0x8(%rbp)
jmp    119f <hdate_get_holyday_type+0x9f>
movl   $0x9,-0x8(%rbp)
mov    -0x8(%rbp),%eax
pop    %rbp
ret

x86 assembly (clang, -O2):
<hdate_get_holyday_type>:
mov    $0x9,%eax
cmp    $0x25,%edi
ja     1117 <hdate_get_holyday_type+0x17>
movslq %edi,%rax
lea    0xeec(%rip),%rcx
mov    (%rcx,%rax,4),%eax
ret

LLVM IR (-O0):
define i32 @hdate_get_holyday_type(i32 %0) {
%2 = alloca i32
%3 = alloca i32
store i32 %0, i32* %2
%4 = load i32, i32* %2
switch i32 %4, label %14 [
i32 0, label %5
i32 1, label %6
i32 2, label %6
i32 4, label %6
i32 5, label %6
i32 8, label %6
i32 15, label %6
i32 20, label %6
i32 27, label %6
i32 28, label %6
i32 29, label %6
i32 30, label %6
i32 31, label %6
i32 32, label %6
i32 37, label %7
i32 6, label %8
i32 7, label %8
i32 16, label %8
i32 9, label %9
i32 13, label %9
i32 14, label %9
i32 3, label %10
i32 10, label %10
i32 12, label %10
i32 21, label %10
i32 22, label %10
i32 17, label %11
i32 26, label %11
i32 18, label %12
i32 23, label %12
i32 11, label %12
i32 24, label %13
i32 25, label %13
]
5: ; preds = %1
store i32 0, i32* %3
br label %15
6: ; preds = %1, %1, %1, %1, %1, %1, %1, %1, %1, %1, %1, %1, %1
store i32 1, i32* %3
br label %15
7: ; preds = %1
store i32 2, i32* %3
br label %15
8: ; preds = %1, %1, %1
store i32 3, i32* %3
br label %15
9: ; preds = %1, %1, %1
store i32 4, i32* %3
br label %15
10: ; preds = %1, %1, %1, %1, %1
store i32 5, i32* %3
br label %15
11: ; preds = %1, %1
store i32 6, i32* %3
br label %15
12: ; preds = %1, %1, %1
store i32 7, i32* %3
br label %15
13: ; preds = %1, %1
store i32 8, i32* %3
br label %15
14: ; preds = %1
store i32 9, i32* %3
br label %15
15: ; preds = %14, %13, %12, %11, %10, %9, %8, %7, %6, %5
%16 = load i32, i32* %3
ret i32 %16
}

LLVM IR (-O2):
@switch.table.hdate_get_holyday_type = [38 x i32] [i32 0, i32 1, i32 1, i32 5, i32 1, i32 1, i32 3, i32 3, i32 1, i32 4, i32 5, i32 7, i32 5, i32 4, i32 4, i32 1, i32 3, i32 6, i32 7, i32 9, i32 1, i32 5, i32 5, i32 7, i32 8, i32 8, i32 6, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 9, i32 9, i32 9, i32 9, i32 2]
define i32 @hdate_get_holyday_type(i32 %0) {
%2 = icmp ult i32 %0, 38
br i1 %2, label %3, label %7
3: ; preds = %1
%4 = sext i32 %0 to i64
%5 = getelementptr inbounds [38 x i32], [38 x i32]* @switch.table.hdate_get_holyday_type, i64 0, i64 %4
%6 = load i32, i32* %5
br label %7
7: ; preds = %1, %3
%8 = phi i32 [ %6, %3 ], [ 9, %1 ]
ret i32 %8
}