#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 *, char const *);
int /*<<< orphan*/ puts(char *);
void print_usage(const char *prog) {
  printf("Usage: %s [-DsbdlHOLC3B]\n", prog);
  puts(
      "  -D --device   device to use (default /dev/spidev0.0)\n"
      "  -s --speed	max speed (Hz)\n"
      "  -d --delay	delay (usec)\n"
      "  -b --bpw	  bits per word\n"
      "  -i --input	input data from a file (e.g. \"test.bin\")\n"
      "  -o --output   output data to a file (e.g. \"results.bin\")\n"
      "  -l --loop	 loopback\n"
      "  -H --cpha	 clock phase\n"
      "  -O --cpol	 clock polarity\n"
      "  -L --lsb	  least significant bit first\n"
      "  -C --cs-high  chip select active high\n"
      "  -3 --3wire	SI/SO signals shared\n"
      "  -v --verbose  Verbose (show tx buffer)\n"
      "  -p			Send data (e.g. \"1234\\xde\\xad\")\n"
      "  -N --no-cs	no chip select\n"
      "  -R --ready	slave pulls low to pause\n"
      "  -2 --dual	 dual transfer\n"
      "  -4 --quad	 quad transfer\n"
      "  -B  --backup   backup whole chip to a file (eg. \"backup.bin\") \n"
      "  -r   --read [addr]:[lenth(byte)]   read some data with length a addr\n"
      "\t\teg. -r 0x000025:1024 means read 1024 byte data at 0x000025\n");
  exit(1);
}


x86 assembly (clang, -O0):
<print_usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rsi
lea    0xeb9(%rip),%rdi
call   1040 <printf@plt>
lea    0xec7(%rip),%rdi
call   1030 <puts@plt>
mov    $0x1,%edi
call   1050 <exit@plt>

x86 assembly (clang, -O2):
<print_usage>:
push   %rax
mov    %rdi,%rsi
lea    0xec5(%rip),%rdi
call   1040 <printf@plt>
lea    0xed3(%rip),%rdi
call   1030 <puts@plt>
mov    $0x1,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [26 x i8] c"Usage: %s [-DsbdlHOLC3B]\0A\00"
@.str.1 = [837 x i8] c" -D --device device to use (default /dev/spidev0.0)\0A -s --speed\09max speed (Hz)\0A -d --delay\09delay (usec)\0A -b --bpw\09 bits per word\0A -i --input\09input data from a file (e.g. \22test.bin\22)\0A -o --output output data to a file (e.g. \22results.bin\22)\0A -l --loop\09 loopback\0A -H --cpha\09 clock phase\0A -O --cpol\09 clock polarity\0A -L --lsb\09 least significant bit first\0A -C --cs-high chip select active high\0A -3 --3wire\09SI/SO signals shared\0A -v --verbose Verbose (show tx buffer)\0A -p\09\09\09Send data (e.g. \221234\\xde\\xad\22)\0A -N --no-cs\09no chip select\0A -R --ready\09slave pulls low to pause\0A -2 --dual\09 dual transfer\0A -4 --quad\09 quad transfer\0A -B --backup backup whole chip to a file (eg. \22backup.bin\22) \0A -r --read [addr]:[lenth(byte)] read some data with length a addr\0A\09\09eg. -r 0x000025:1024 means read 1024 byte data at 0x000025\0A\00"
define void @print_usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i8*, i8** %2
%4 = call i32 @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0), i8* %3)
%5 = call i32 @puts(i8* getelementptr inbounds ([837 x i8], [837 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @exit(i32 1)
unreachable
}

LLVM IR (-O2):
@.str = [26 x i8] c"Usage: %s [-DsbdlHOLC3B]\0A\00"
@.str.1 = [837 x i8] c" -D --device device to use (default /dev/spidev0.0)\0A -s --speed\09max speed (Hz)\0A -d --delay\09delay (usec)\0A -b --bpw\09 bits per word\0A -i --input\09input data from a file (e.g. \22test.bin\22)\0A -o --output output data to a file (e.g. \22results.bin\22)\0A -l --loop\09 loopback\0A -H --cpha\09 clock phase\0A -O --cpol\09 clock polarity\0A -L --lsb\09 least significant bit first\0A -C --cs-high chip select active high\0A -3 --3wire\09SI/SO signals shared\0A -v --verbose Verbose (show tx buffer)\0A -p\09\09\09Send data (e.g. \221234\\xde\\xad\22)\0A -N --no-cs\09no chip select\0A -R --ready\09slave pulls low to pause\0A -2 --dual\09 dual transfer\0A -4 --quad\09 quad transfer\0A -B --backup backup whole chip to a file (eg. \22backup.bin\22) \0A -r --read [addr]:[lenth(byte)] read some data with length a addr\0A\09\09eg. -r 0x000025:1024 means read 1024 byte data at 0x000025\0A\00"
define void @print_usage(i8* %0) {
%2 = tail call i32 @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0), i8* %0)
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([837 x i8], [837 x i8]* @.str.1, i64 0, i64 0))
%4 = tail call i32 @exit(i32 1)
unreachable
}