#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*/ EXIT_SUCCESS;
int /*<<< orphan*/ exit(int /*<<< orphan*/);
int /*<<< orphan*/ printf(char *);
void usage(void) {
  printf("Usage: kill [options] <pid>\n\n");
  printf("Brief: Sends a signal to a process.\n\n");
  printf("Options:\n");
  printf("  --help             Display this information and exit\n");
  printf("  --signal <signame> Signal to be sent\n");
  printf("  --version          Display program version and exit\n");
  exit(EXIT_SUCCESS);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
lea    0xed5(%rip),%rdi
call   1030 <printf@plt>
lea    0xee7(%rip),%rdi
call   1030 <printf@plt>
lea    0xf01(%rip),%rdi
call   1030 <printf@plt>
lea    0xeff(%rip),%rdi
call   1030 <printf@plt>
lea    0xf2b(%rip),%rdi
call   1030 <printf@plt>
lea    0xf47(%rip),%rdi
call   1030 <printf@plt>
mov    0x2e6d(%rip),%rax
mov    (%rax),%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %rax
lea    0xed8(%rip),%rdi
call   1030 <puts@plt>
lea    0xee9(%rip),%rdi
call   1030 <puts@plt>
lea    0xf02(%rip),%rdi
call   1030 <puts@plt>
lea    0xeff(%rip),%rdi
call   1030 <puts@plt>
lea    0xf2a(%rip),%rdi
call   1030 <puts@plt>
lea    0xf45(%rip),%rdi
call   1030 <puts@plt>
mov    0x2e70(%rip),%rax
mov    (%rax),%edi
call   1040 <exit@plt>

LLVM IR (-O0):
@.str = [30 x i8] c"Usage: kill [options] <pid>\0A\0A\00"
@.str.1 = [38 x i8] c"Brief: Sends a signal to a process.\0A\0A\00"
@.str.2 = [10 x i8] c"Options:\0A\00"
@.str.3 = [56 x i8] c" --help Display this information and exit\0A\00"
@.str.4 = [40 x i8] c" --signal <signame> Signal to be sent\0A\00"
@.str.5 = [55 x i8] c" --version Display program version and exit\0A\00"
@EXIT_SUCCESS = global i32 0
define void @usage() {
%1 = call i32 @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([56 x i8], [56 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([55 x i8], [55 x i8]* @.str.5, i64 0, i64 0))
%7 = load i32, i32* @EXIT_SUCCESS
%8 = call i32 @exit(i32 %7)
unreachable
}

LLVM IR (-O2):
@EXIT_SUCCESS = global i32 0
@str = [29 x i8] c"Usage: kill [options] <pid>\0A\00"
@str.6 = [37 x i8] c"Brief: Sends a signal to a process.\0A\00"
@str.7 = [9 x i8] c"Options:\00"
@str.8 = [55 x i8] c" --help Display this information and exit\00"
@str.9 = [39 x i8] c" --signal <signame> Signal to be sent\00"
@str.10 = [54 x i8] c" --version Display program version and exit\00"
define void @usage() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 x i8]* @str.6, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @str.7, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([55 x i8], [55 x i8]* @str.8, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([39 x i8], [39 x i8]* @str.9, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([54 x i8], [54 x i8]* @str.10, i64 0, i64 0))
%7 = load i32, i32* @EXIT_SUCCESS
%8 = tail call i32 @exit(i32 %7)
unreachable
}