#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*/ stdout;
void usage_help(char *argv[]) {
  fprintf(stdout, "Usage:\n");
  fprintf(stdout, "%s list -- list all implemented system calls.\n", argv[0]);
  fprintf(stdout, "%s syscall_name -- execute specific system call.\n",
          argv[0]);
}


x86 assembly (clang, -O0):
<usage_help>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2ebd(%rip),%rax
mov    (%rax),%edi
lea    0xed4(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2ea6(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rax
mov    (%rax),%rdx
lea    0xebe(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e88(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rax
mov    (%rax),%rdx
lea    0xecf(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage_help>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%rbx
mov    0x2ec2(%rip),%r14
mov    (%r14),%edi
lea    0xed8(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r14),%edi
mov    (%rbx),%rdx
lea    0xecc(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r14),%edi
mov    (%rbx),%rdx
lea    0xee7(%rip),%rsi
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stdout = global i32 0
@.str = [8 x i8] c"Usage:\0A\00"
@.str.1 = [47 x i8] c"%s list -- list all implemented system calls.\0A\00"
@.str.2 = [50 x i8] c"%s syscall_name -- execute specific system call.\0A\00"
define void @usage_help(i8** %0) {
%2 = alloca i8**
store i8** %0, i8*** %2
%3 = load i32, i32* @stdout
%4 = call i32 (i32, i8*, ...) @fprintf(i32 %3, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%5 = load i32, i32* @stdout
%6 = load i8**, i8*** %2
%7 = getelementptr inbounds i8*, i8** %6, i64 0
%8 = load i8*, i8** %7
%9 = call i32 (i32, i8*, ...) @fprintf(i32 %5, i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str.1, i64 0, i64 0), i8* %8)
%10 = load i32, i32* @stdout
%11 = load i8**, i8*** %2
%12 = getelementptr inbounds i8*, i8** %11, i64 0
%13 = load i8*, i8** %12
%14 = call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.2, i64 0, i64 0), i8* %13)
ret void
}

LLVM IR (-O2):
@stdout = global i32 0
@.str = [8 x i8] c"Usage:\0A\00"
@.str.1 = [47 x i8] c"%s list -- list all implemented system calls.\0A\00"
@.str.2 = [50 x i8] c"%s syscall_name -- execute specific system call.\0A\00"
define void @usage_help(i8** nocapture %0) {
%2 = load i32, i32* @stdout
%3 = tail call i32 (i32, i8*, ...) @fprintf(i32 %2, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%4 = load i32, i32* @stdout
%5 = load i8*, i8** %0
%6 = tail call i32 (i32, i8*, ...) @fprintf(i32 %4, i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str.1, i64 0, i64 0), i8* %5)
%7 = load i32, i32* @stdout
%8 = load i8*, i8** %0
%9 = tail call i32 (i32, i8*, ...) @fprintf(i32 %7, i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.2, i64 0, i64 0), i8* %8)
ret void
}