#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 SIGTERM;
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, ...);
int /*<<< orphan*/ stderr;
char *strsignal(int);
void usage(const char *argv0) {
  fprintf(stderr, "usage: %s [ options ] pid\n", argv0);
  fprintf(stderr, "available options:\n");
  fprintf(stderr,
          "\t-c, --count count: number of signals (default: 0 (continuous))\n");
  fprintf(stderr, "\t-s, --sig signum: specify signal (default: %d (%s))\n",
          SIGTERM, strsignal(SIGTERM));
  fprintf(stderr, "\t--version: print version info\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2ea5(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xec0(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e8a(%rip),%rax
mov    (%rax),%edi
lea    0xec4(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e73(%rip),%rax
mov    (%rax),%edi
lea    0xec1(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e5c(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x10(%rbp)
mov    0x2e60(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0xc(%rbp)
mov    0x2e54(%rip),%rax
mov    (%rax),%edi
call   1040 <strsignal@plt>
mov    -0x10(%rbp),%edi
mov    -0xc(%rbp),%edx
mov    %rax,%rcx
lea    0xec5(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e1f(%rip),%rax
mov    (%rax),%edi
lea    0xee4(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rbp
push   %r14
push   %rbx
mov    %rdi,%rdx
mov    0x2eaa(%rip),%r14
mov    (%r14),%edi
lea    0xec8(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r14),%edi
lea    0xed2(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r14),%edi
lea    0xed5(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r14),%ebx
mov    0x2e7d(%rip),%rax
mov    (%rax),%ebp
mov    %ebp,%edi
call   1040 <strsignal@plt>
lea    0xef5(%rip),%rsi
mov    %ebx,%edi
mov    %ebp,%edx
mov    %rax,%rcx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r14),%edi
lea    0xf13(%rip),%rsi
xor    %eax,%eax
pop    %rbx
pop    %r14
pop    %rbp
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [27 x i8] c"usage: %s [ options ] pid\0A\00"
@.str.1 = [20 x i8] c"available options:\0A\00"
@.str.2 = [65 x i8] c"\09-c, --count count: number of signals (default: 0 (continuous))\0A\00"
@.str.3 = [54 x i8] c"\09-s, --sig signum: specify signal (default: %d (%s))\0A\00"
@SIGTERM = global i32 0
@.str.4 = [32 x i8] c"\09--version: print version info\0A\00"
define void @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 ([27 x i8], [27 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 ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%8 = load i32, i32* @stderr
%9 = call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str.2, i64 0, i64 0))
%10 = load i32, i32* @stderr
%11 = load i32, i32* @SIGTERM
%12 = load i32, i32* @SIGTERM
%13 = call i8* @strsignal(i32 %12)
%14 = call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([54 x i8], [54 x i8]* @.str.3, i64 0, i64 0), i32 %11, i8* %13)
%15 = load i32, i32* @stderr
%16 = call i32 (i32, i8*, ...) @fprintf(i32 %15, i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.4, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [27 x i8] c"usage: %s [ options ] pid\0A\00"
@.str.1 = [20 x i8] c"available options:\0A\00"
@.str.2 = [65 x i8] c"\09-c, --count count: number of signals (default: 0 (continuous))\0A\00"
@.str.3 = [54 x i8] c"\09-s, --sig signum: specify signal (default: %d (%s))\0A\00"
@SIGTERM = global i32 0
@.str.4 = [32 x i8] c"\09--version: print version info\0A\00"
define void @usage(i8* %0) {
%2 = load i32, i32* @stderr
%3 = tail call i32 (i32, i8*, ...) @fprintf(i32 %2, i8* getelementptr inbounds ([27 x i8], [27 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 ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%6 = load i32, i32* @stderr
%7 = tail call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str.2, i64 0, i64 0))
%8 = load i32, i32* @stderr
%9 = load i32, i32* @SIGTERM
%10 = tail call i8* @strsignal(i32 %9)
%11 = tail call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([54 x i8], [54 x i8]* @.str.3, i64 0, i64 0), i32 %9, i8* %10)
%12 = load i32, i32* @stderr
%13 = tail call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.4, i64 0, i64 0))
ret void
}