#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(int);
int /*<<< orphan*/ printf(char *, ...);
void usage(const char *prog) {
  printf("usage: %s [-vh] [-s N] [-n N] [sudoku_file...]\n", prog);
  printf("  --help, -h       - this usage message.\n");
  printf("  --verbose, -v    - increase verbosity - show sudoku.\n");
  printf("  --sudoku, -s NUM - solve specified puzzle.\n");
  printf("  --number, -n NUM - solve NUM of puzzles (default %u).\n",
         (4096 * 4));
  exit(2);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rsi
lea    0xec9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeeb(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf07(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf31(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf51(%rip),%rdi
mov    $0x4000,%esi
mov    $0x0,%al
call   1030 <printf@plt>
mov    $0x2,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %rax
mov    %rdi,%rsi
lea    0xec5(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf20(%rip),%rdi
call   1030 <puts@plt>
lea    0xf3d(%rip),%rdi
call   1030 <puts@plt>
lea    0xf68(%rip),%rdi
call   1030 <puts@plt>
lea    0xec3(%rip),%rdi
mov    $0x4000,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0x2,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [48 x i8] c"usage: %s [-vh] [-s N] [-n N] [sudoku_file...]\0A\00"
@.str.1 = [42 x i8] c" --help, -h - this usage message.\0A\00"
@.str.2 = [56 x i8] c" --verbose, -v - increase verbosity - show sudoku.\0A\00"
@.str.3 = [46 x i8] c" --sudoku, -s NUM - solve specified puzzle.\0A\00"
@.str.4 = [57 x i8] c" --number, -n NUM - solve NUM of puzzles (default %u).\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 ([48 x i8], [48 x i8]* @.str, i64 0, i64 0), i8* %3)
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([56 x i8], [56 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str.4, i64 0, i64 0), i32 16384)
%9 = call i32 @exit(i32 2)
unreachable
}

LLVM IR (-O2):
@.str = [48 x i8] c"usage: %s [-vh] [-s N] [-n N] [sudoku_file...]\0A\00"
@.str.4 = [57 x i8] c" --number, -n NUM - solve NUM of puzzles (default %u).\0A\00"
@str = [41 x i8] c" --help, -h - this usage message.\00"
@str.5 = [55 x i8] c" --verbose, -v - increase verbosity - show sudoku.\00"
@str.6 = [45 x i8] c" --sudoku, -s NUM - solve specified puzzle.\00"
define void @usage(i8* %0) {
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([48 x i8], [48 x i8]* @.str, i64 0, i64 0), i8* %0)
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([41 x i8], [41 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([55 x i8], [55 x i8]* @str.5, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([45 x i8], [45 x i8]* @str.6, i64 0, i64 0))
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([57 x i8], [57 x i8]* @.str.4, i64 0, i64 0), i32 16384)
%7 = tail call i32 @exit(i32 2)
unreachable
}