#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*/ fprintf(int /*<<< orphan*/, char *, ...);
int /*<<< orphan*/ stderr;
void print_usage(char *prg) {
  fprintf(stderr, "\nUsage: %s [options]\n", prg);
  fprintf(stderr, "Options: -i <interface> (CAN interface. Default: '%s')\n",
          "vcan0");
  fprintf(stderr, "         -c <can_id>    (used CAN ID. Default: 0x%03X)\n",
          0x42);
  fprintf(stderr,
          "         -o <timeout>   (Timeout value in nsecs. Default: 0)\n");
  fprintf(stderr,
          "         -t <throttle>  (Throttle value in nsecs. Default: 0)\n");
  fprintf(stderr, "         -q <msgs>      (Quit after receiption of #msgs)\n");
  fprintf(stderr,
          "         -s             (set STARTTIMER flag. Default: off)\n");
  fprintf(stderr, "\n");
}


x86 assembly (clang, -O0):
<print_usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2ebd(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xed0(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2ea2(%rip),%rax
mov    (%rax),%edi
lea    0xecf(%rip),%rsi
lea    0xf00(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e84(%rip),%rax
mov    (%rax),%edi
lea    0xeef(%rip),%rsi
mov    $0x42,%edx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e68(%rip),%rax
mov    (%rax),%edi
lea    0xf0b(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e51(%rip),%rax
mov    (%rax),%edi
lea    0xf32(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e3a(%rip),%rax
mov    (%rax),%edi
lea    0xf5a(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e23(%rip),%rax
mov    (%rax),%edi
lea    0xf7d(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e0c(%rip),%rax
mov    (%rax),%edi
lea    0xe6f(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_usage>:
push   %rbx
mov    %rdi,%rdx
mov    0x2ec5(%rip),%rbx
mov    (%rbx),%edi
lea    0xedc(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xee2(%rip),%rsi
lea    0xf13(%rip),%rdx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf09(%rip),%rsi
mov    $0x42,%edx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf2c(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf5a(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf89(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xfb3(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xeac(%rip),%rsi
xor    %eax,%eax
pop    %rbx
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [22 x i8] c"\0AUsage: %s [options]\0A\00"
@.str.1 = [56 x i8] c"Options: -i <interface> (CAN interface. Default: '%s')\0A\00"
@.str.2 = [6 x i8] c"vcan0\00"
@.str.3 = [56 x i8] c" -c <can_id> (used CAN ID. Default: 0x%03X)\0A\00"
@.str.4 = [62 x i8] c" -o <timeout> (Timeout value in nsecs. Default: 0)\0A\00"
@.str.5 = [63 x i8] c" -t <throttle> (Throttle value in nsecs. Default: 0)\0A\00"
@.str.6 = [58 x i8] c" -q <msgs> (Quit after receiption of #msgs)\0A\00"
@.str.7 = [61 x i8] c" -s (set STARTTIMER flag. Default: off)\0A\00"
@.str.8 = [2 x i8] c"\0A\00"
define void @print_usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i32, i32* @stderr
%4 = load i8*, i8** %2
%5 = call i32 (i32, i8*, ...) @fprintf(i32 %3, i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str, i64 0, i64 0), i8* %4)
%6 = load i32, i32* @stderr
%7 = call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([56 x i8], [56 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%8 = load i32, i32* @stderr
%9 = call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([56 x i8], [56 x i8]* @.str.3, i64 0, i64 0), i32 66)
%10 = load i32, i32* @stderr
%11 = call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([62 x i8], [62 x i8]* @.str.4, i64 0, i64 0))
%12 = load i32, i32* @stderr
%13 = call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.5, i64 0, i64 0))
%14 = load i32, i32* @stderr
%15 = call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([58 x i8], [58 x i8]* @.str.6, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([61 x i8], [61 x i8]* @.str.7, i64 0, i64 0))
%18 = load i32, i32* @stderr
%19 = call i32 (i32, i8*, ...) @fprintf(i32 %18, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.8, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [22 x i8] c"\0AUsage: %s [options]\0A\00"
@.str.1 = [56 x i8] c"Options: -i <interface> (CAN interface. Default: '%s')\0A\00"
@.str.2 = [6 x i8] c"vcan0\00"
@.str.3 = [56 x i8] c" -c <can_id> (used CAN ID. Default: 0x%03X)\0A\00"
@.str.4 = [62 x i8] c" -o <timeout> (Timeout value in nsecs. Default: 0)\0A\00"
@.str.5 = [63 x i8] c" -t <throttle> (Throttle value in nsecs. Default: 0)\0A\00"
@.str.6 = [58 x i8] c" -q <msgs> (Quit after receiption of #msgs)\0A\00"
@.str.7 = [61 x i8] c" -s (set STARTTIMER flag. Default: off)\0A\00"
@.str.8 = [2 x i8] c"\0A\00"
define void @print_usage(i8* %0) {
%2 = load i32, i32* @stderr
%3 = tail call i32 (i32, i8*, ...) @fprintf(i32 %2, i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str, i64 0, i64 0), i8* %0)
%4 = load i32, i32* @stderr
%5 = tail call i32 (i32, i8*, ...) @fprintf(i32 %4, i8* getelementptr inbounds ([56 x i8], [56 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%6 = load i32, i32* @stderr
%7 = tail call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([56 x i8], [56 x i8]* @.str.3, i64 0, i64 0), i32 66)
%8 = load i32, i32* @stderr
%9 = tail call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([62 x i8], [62 x i8]* @.str.4, i64 0, i64 0))
%10 = load i32, i32* @stderr
%11 = tail call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.5, i64 0, i64 0))
%12 = load i32, i32* @stderr
%13 = tail call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([58 x i8], [58 x i8]* @.str.6, i64 0, i64 0))
%14 = load i32, i32* @stderr
%15 = tail call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([61 x i8], [61 x i8]* @.str.7, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = tail call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.8, i64 0, i64 0))
ret void
}