#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 */
typedef int /*<<< orphan*/ va_list;

/* Variables and functions */
int /*<<< orphan*/ stderr;
int /*<<< orphan*/ strcat(char *, char *);
int /*<<< orphan*/ strcpy(char *, char const *);
int /*<<< orphan*/ strlen(char const *);
int vfprintf(int /*<<< orphan*/, char const *, int /*<<< orphan*/);
int netutils_error_default(char const *fmt, va_list args) {
  char fmtbuf[strlen(fmt) + 2];
  strcpy(fmtbuf, fmt);
  strcat(fmtbuf, "\n");
  return vfprintf(stderr, fmt, args);
}


x86 assembly (clang, -O0):
<netutils_error_default>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
mov    -0x8(%rbp),%rdi
call   1040 <strlen@plt>
add    $0x2,%eax
mov    %rsp,%rcx
mov    %rcx,-0x18(%rbp)
mov    %rax,%rcx
add    $0xf,%rcx
and    $0xfffffffffffffff0,%rcx
mov    %rsp,%rdi
sub    %rcx,%rdi
mov    %rdi,-0x28(%rbp)
mov    %rdi,%rsp
mov    %rax,-0x20(%rbp)
mov    -0x8(%rbp),%rsi
call   1030 <strcpy@plt>
mov    -0x28(%rbp),%rdi
lea    0xe6e(%rip),%rsi
call   1060 <strcat@plt>
mov    0x2e42(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rsi
mov    -0xc(%rbp),%edx
call   1050 <vfprintf@plt>
mov    -0x18(%rbp),%rcx
mov    %rcx,%rsp
mov    %rbp,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<netutils_error_default>:
push   %rbp
mov    %rsp,%rbp
push   %r15
push   %r14
push   %rbx
push   %rax
mov    %esi,%r14d
mov    %rdi,%r15
call   1040 <strlen@plt>
add    $0x2,%eax
mov    %rsp,%rbx
add    $0xf,%rax
and    $0xfffffffffffffff0,%rax
sub    %rax,%rbx
mov    %rbx,%rsp
mov    %rbx,%rdi
mov    %r15,%rsi
call   1030 <strcpy@plt>
lea    0xe85(%rip),%rsi
mov    %rbx,%rdi
call   1060 <strcat@plt>
mov    0x2e56(%rip),%rax
mov    (%rax),%edi
mov    %r15,%rsi
mov    %r14d,%edx
call   1050 <vfprintf@plt>
lea    -0x18(%rbp),%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [2 x i8] c"\0A\00"
@stderr = global i32 0
define i32 @netutils_error_default(i8* %0, i32 %1) {
%3 = alloca i8*
%4 = alloca i32
%5 = alloca i8*
%6 = alloca i64
store i8* %0, i8** %3
store i32 %1, i32* %4
%7 = load i8*, i8** %3
%8 = call i32 @strlen(i8* %7)
%9 = add nsw i32 %8, 2
%10 = zext i32 %9 to i64
%11 = call i8* @llvm.stacksave()
store i8* %11, i8** %5
%12 = alloca i8, i64 %10
store i64 %10, i64* %6
%13 = load i8*, i8** %3
%14 = call i32 @strcpy(i8* %12, i8* %13)
%15 = call i32 @strcat(i8* %12, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = load i8*, i8** %3
%18 = load i32, i32* %4
%19 = call i32 @vfprintf(i32 %16, i8* %17, i32 %18)
%20 = load i8*, i8** %5
ret i32 %19
}

LLVM IR (-O2):
@.str = [2 x i8] c"\0A\00"
@stderr = global i32 0
define i32 @netutils_error_default(i8* %0, i32 %1) {
%3 = tail call i32 @strlen(i8* %0)
%4 = add nsw i32 %3, 2
%5 = zext i32 %4 to i64
%6 = alloca i8, i64 %5
%7 = call i32 @strcpy(i8* %6, i8* %0)
%8 = call i32 @strcat(i8* %6, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%9 = load i32, i32* @stderr
%10 = call i32 @vfprintf(i32 %9, i8* %0, i32 %1)
ret i32 %10
}