#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*/ printf(char *, ...);
void usage(char *app) {
  printf("usage: %s [flags] [command-string]*\n", app);
  printf("-h                 this help\n");
  printf("-v                 increase verbosity\n");
  printf("-q                 run quietly\n");
  printf("return codes:\n");
  printf("0     command completed successfully\n");
  printf("1     command failed\n");
  printf("2     usage problems\n");
  printf("4     internal errors\n");
  printf("notes:\n");
  printf(
      "  command and parameters have to be given as single quoted strings\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rsi
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf00(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf19(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf2b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf2c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf44(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf4c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf54(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf5d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf57(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rax
mov    %rdi,%rsi
lea    0xed5(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeec(%rip),%rdi
call   1030 <puts@plt>
lea    0xefd(%rip),%rdi
call   1030 <puts@plt>
lea    0xf17(%rip),%rdi
call   1030 <puts@plt>
lea    0xf2a(%rip),%rdi
call   1030 <puts@plt>
lea    0xf2c(%rip),%rdi
call   1030 <puts@plt>
lea    0xf45(%rip),%rdi
call   1030 <puts@plt>
lea    0xf4e(%rip),%rdi
call   1030 <puts@plt>
lea    0xf57(%rip),%rdi
call   1030 <puts@plt>
lea    0xf61(%rip),%rdi
call   1030 <puts@plt>
lea    0xf5c(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [37 x i8] c"usage: %s [flags] [command-string]*\0A\00"
@.str.1 = [30 x i8] c"-h this help\0A\00"
@.str.2 = [39 x i8] c"-v increase verbosity\0A\00"
@.str.3 = [32 x i8] c"-q run quietly\0A\00"
@.str.4 = [15 x i8] c"return codes:\0A\00"
@.str.5 = [38 x i8] c"0 command completed successfully\0A\00"
@.str.6 = [22 x i8] c"1 command failed\0A\00"
@.str.7 = [22 x i8] c"2 usage problems\0A\00"
@.str.8 = [23 x i8] c"4 internal errors\0A\00"
@.str.9 = [8 x i8] c"notes:\0A\00"
@.str.10 = [68 x i8] c" command and parameters have to be given as single quoted strings\0A\00"
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i8*, i8** %2
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str, i64 0, i64 0), i8* %3)
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([39 x i8], [39 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.5, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.6, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.7, i64 0, i64 0))
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.8, i64 0, i64 0))
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.9, i64 0, i64 0))
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([68 x i8], [68 x i8]* @.str.10, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str = [37 x i8] c"usage: %s [flags] [command-string]*\0A\00"
@str = [29 x i8] c"-h this help\00"
@str.11 = [38 x i8] c"-v increase verbosity\00"
@str.12 = [31 x i8] c"-q run quietly\00"
@str.13 = [14 x i8] c"return codes:\00"
@str.14 = [37 x i8] c"0 command completed successfully\00"
@str.15 = [21 x i8] c"1 command failed\00"
@str.16 = [21 x i8] c"2 usage problems\00"
@str.17 = [22 x i8] c"4 internal errors\00"
@str.18 = [7 x i8] c"notes:\00"
@str.19 = [67 x i8] c" command and parameters have to be given as single quoted strings\00"
define void @usage(i8* %0) {
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 x i8]* @.str, i64 0, i64 0), i8* %0)
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([38 x i8], [38 x i8]* @str.11, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @str.12, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @str.13, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 x i8]* @str.14, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @str.15, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @str.16, i64 0, i64 0))
%10 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @str.17, i64 0, i64 0))
%11 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str.18, i64 0, i64 0))
%12 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([67 x i8], [67 x i8]* @str.19, i64 0, i64 0))
ret void
}