#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*/ printf(char *);
void decode_status(const int st) {
  switch (st) {
  case 0x0:
    printf(" (no status available)");
    break;
  case 0x1:
    printf(" (target port asym. state changed by SET TARGET PORT "
           "GROUPS command)");
    break;
  case 0x2:
    printf(" (target port asym. state changed by implicit lu "
           "behaviour)");
    break;
  default:
    printf(" (unknown status code)");
    break;
  }
}


x86 assembly (clang, -O0):
<decode_status>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %edi,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    %eax,-0x8(%rbp)
test   %eax,%eax
je     1150 <decode_status+0x40>
jmp    112e <decode_status+0x1e>
mov    -0x8(%rbp),%eax
sub    $0x1,%eax
je     1161 <decode_status+0x51>
jmp    113f <decode_status+0x2f>
mov    -0x8(%rbp),%eax
sub    $0x2,%eax
je     1172 <decode_status+0x62>
jmp    1183 <decode_status+0x73>
lea    0xea9(%rip),%rdi
call   1030 <printf@plt>
jmp    118f <decode_status+0x7f>
lea    0xeaf(%rip),%rdi
call   1030 <printf@plt>
jmp    118f <decode_status+0x7f>
lea    0xee3(%rip),%rdi
call   1030 <printf@plt>
jmp    118f <decode_status+0x7f>
lea    0xf0e(%rip),%rdi
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<decode_status>:
cmp    $0x2,%edi
ja     112b <decode_status+0x1b>
movslq %edi,%rax
lea    0xf91(%rip),%rcx
movslq (%rcx,%rax,4),%rdi
add    %rcx,%rdi
jmp    1030 <printf@plt>
lea    0xf66(%rip),%rdi
jmp    1030 <printf@plt>

LLVM IR (-O0):
@.str = [23 x i8] c" (no status available)\00"
@.str.1 = [69 x i8] c" (target port asym. state changed by SET TARGET PORT GROUPS command)\00"
@.str.2 = [60 x i8] c" (target port asym. state changed by implicit lu behaviour)\00"
@.str.3 = [23 x i8] c" (unknown status code)\00"
define void @decode_status(i32 %0) {
%2 = alloca i32
store i32 %0, i32* %2
%3 = load i32, i32* %2
switch i32 %3, label %10 [
i32 0, label %4
i32 1, label %6
i32 2, label %8
]
4: ; preds = %1
%5 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i64 0, i64 0))
br label %12
6: ; preds = %1
%7 = call i32 @printf(i8* getelementptr inbounds ([69 x i8], [69 x i8]* @.str.1, i64 0, i64 0))
br label %12
8: ; preds = %1
%9 = call i32 @printf(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @.str.2, i64 0, i64 0))
br label %12
10: ; preds = %1
%11 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.3, i64 0, i64 0))
br label %12
12: ; preds = %10, %8, %6, %4
ret void
}

LLVM IR (-O2):
@.str = [23 x i8] c" (no status available)\00"
@.str.1 = [69 x i8] c" (target port asym. state changed by SET TARGET PORT GROUPS command)\00"
@.str.2 = [60 x i8] c" (target port asym. state changed by implicit lu behaviour)\00"
@.str.3 = [23 x i8] c" (unknown status code)\00"
@reltable.decode_status = [3 x i32] [i32 trunc (i64 sub (i64 ptrtoint ([23 x i8]* @.str to i64), i64 ptrtoint ([3 x i32]* @reltable.decode_status to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([69 x i8]* @.str.1 to i64), i64 ptrtoint ([3 x i32]* @reltable.decode_status to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint ([60 x i8]* @.str.2 to i64), i64 ptrtoint ([3 x i32]* @reltable.decode_status to i64)) to i32)]
define void @decode_status(i32 %0) {
%2 = icmp ult i32 %0, 3
br i1 %2, label %3, label %7
3: ; preds = %1
%4 = sext i32 %0 to i64
%5 = shl i64 %4, 2
%6 = call i8* @llvm.load.relative.i64(i8* bitcast ([3 x i32]* @reltable.decode_status to i8*), i64 %5)
br label %7
7: ; preds = %1, %3
%8 = phi i8* [ %6, %3 ], [ getelementptr inbounds ([23 x i8], [23 x i8]* @.str.3, i64 0, i64 0), %1 ]
%9 = tail call i32 @printf(i8* dereferenceable(1) %8)
ret void
}