#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 detect();
int /*<<< orphan*/ printf(char *);
void get_cpuconfig(void) {
  int d = detect();
  switch (d) {
  case 0:
    printf("#define ZARCH_GENERIC\n");
    printf("#define DTB_DEFAULT_ENTRIES 64\n");
    break;
  case 1:
    printf("#define Z13\n");
    printf("#define DTB_DEFAULT_ENTRIES 64\n");
    break;
  }
}


x86 assembly (clang, -O0):
<get_cpuconfig>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
xor    %eax,%eax
call   1040 <detect@plt>
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
mov    %eax,-0x8(%rbp)
test   %eax,%eax
je     1156 <get_cpuconfig+0x36>
jmp    1145 <get_cpuconfig+0x25>
mov    -0x8(%rbp),%eax
sub    $0x1,%eax
je     1173 <get_cpuconfig+0x53>
jmp    118b <get_cpuconfig+0x6b>
lea    0xea3(%rip),%rdi
call   1030 <printf@plt>
lea    0xeae(%rip),%rdi
call   1030 <printf@plt>
jmp    118b <get_cpuconfig+0x6b>
lea    0xebd(%rip),%rdi
call   1030 <printf@plt>
lea    0xe91(%rip),%rdi
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<get_cpuconfig>:
push   %rax
xor    %eax,%eax
call   1040 <detect@plt>
test   %eax,%eax
je     113a <get_cpuconfig+0x1a>
cmp    $0x1,%eax
jne    1153 <get_cpuconfig+0x33>
lea    0xec8(%rip),%rdi
jmp    1141 <get_cpuconfig+0x21>
lea    0xecb(%rip),%rdi
call   1030 <puts@plt>
lea    0xed5(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>
pop    %rax
ret

LLVM IR (-O0):
@.str = [23 x i8] c"#define ZARCH_GENERIC\0A\00"
@.str.1 = [32 x i8] c"#define DTB_DEFAULT_ENTRIES 64\0A\00"
@.str.2 = [13 x i8] c"#define Z13\0A\00"
define void @get_cpuconfig() {
%1 = alloca i32
%2 = call i32 (...) @detect()
store i32 %2, i32* %1
%3 = load i32, i32* %1
switch i32 %3, label %10 [
i32 0, label %4
i32 1, label %7
]
4: ; preds = %0
%5 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.1, i64 0, i64 0))
br label %10
7: ; preds = %0
%8 = call i32 @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0))
%9 = call i32 @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.1, i64 0, i64 0))
br label %10
10: ; preds = %0, %7, %4
ret void
}

LLVM IR (-O2):
@str = [12 x i8] c"#define Z13\00"
@str.4 = [22 x i8] c"#define ZARCH_GENERIC\00"
@str.5 = [31 x i8] c"#define DTB_DEFAULT_ENTRIES 64\00"
define void @get_cpuconfig() {
%1 = tail call i32 (...) @detect()
switch i32 %1, label %8 [
i32 0, label %3
i32 1, label %2
]
2: ; preds = %0
br label %3
3: ; preds = %0, %2
%4 = phi i8* [ getelementptr inbounds ([12 x i8], [12 x i8]* @str, i64 0, i64 0), %2 ], [ getelementptr inbounds ([22 x i8], [22 x i8]* @str.4, i64 0, i64 0), %0 ]
%5 = phi i8* [ getelementptr inbounds ([31 x i8], [31 x i8]* @str.5, i64 0, i64 0), %2 ], [ getelementptr inbounds ([31 x i8], [31 x i8]* @str.5, i64 0, i64 0), %0 ]
%6 = tail call i32 @puts(i8* dereferenceable(1) %4)
%7 = tail call i32 @puts(i8* dereferenceable(1) %5)
br label %8
8: ; preds = %3, %0
ret void
}