#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 */
scalar_t__ errno;
int /*<<< orphan*/ exit(int);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, ...);
int /*<<< orphan*/ perror(char *);
int /*<<< orphan*/ stderr;
void usage(char *msg) {
  if (errno)
    perror("error: ");
  fprintf(stderr, "%s\n", msg);
  fprintf(stderr, "mutex_ft2csv [-d] FILE\n");
  exit(1);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2e95(%rip),%rax
cmpq   $0x0,(%rax)
je     1159 <usage+0x29>
lea    0xeac(%rip),%rdi
call   1040 <perror@plt>
mov    0x2e80(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xe9b(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e65(%rip),%rax
mov    (%rax),%edi
lea    0xe88(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1050 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%rbx
mov    0x2e9a(%rip),%rax
cmpq   $0x0,(%rax)
je     1150 <usage+0x20>
lea    0xeb5(%rip),%rdi
call   1040 <perror@plt>
mov    0x2e89(%rip),%r14
mov    (%r14),%edi
lea    0xea7(%rip),%rsi
mov    %rbx,%rdx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r14),%edi
lea    0xe97(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@errno = global i64 0
@.str = [8 x i8] c"error: \00"
@stderr = global i32 0
@.str.1 = [4 x i8] c"%s\0A\00"
@.str.2 = [24 x i8] c"mutex_ft2csv [-d] FILE\0A\00"
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i64, i64* @errno
%4 = icmp ne i64 %3, 0
br i1 %4, label %5, label %7
5: ; preds = %1
%6 = call i32 @perror(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
br label %7
7: ; preds = %5, %1
%8 = load i32, i32* @stderr
%9 = load i8*, i8** %2
%10 = call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %9)
%11 = load i32, i32* @stderr
%12 = call i32 (i32, i8*, ...) @fprintf(i32 %11, i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.2, i64 0, i64 0))
%13 = call i32 @exit(i32 1)
unreachable
}

LLVM IR (-O2):
@errno = global i64 0
@.str = [8 x i8] c"error: \00"
@stderr = global i32 0
@.str.1 = [4 x i8] c"%s\0A\00"
@.str.2 = [24 x i8] c"mutex_ft2csv [-d] FILE\0A\00"
define void @usage(i8* %0) {
%2 = load i64, i64* @errno
%3 = icmp eq i64 %2, 0
br i1 %3, label %6, label %4
4: ; preds = %1
%5 = tail call i32 @perror(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
br label %6
6: ; preds = %4, %1
%7 = load i32, i32* @stderr
%8 = tail call i32 (i32, i8*, ...) @fprintf(i32 %7, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%9 = load i32, i32* @stderr
%10 = tail call i32 (i32, i8*, ...) @fprintf(i32 %9, i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.2, i64 0, i64 0))
%11 = tail call i32 @exit(i32 1)
unreachable
}