#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 *prog) {
  printf("Usage: %s [-b 0/1] image_filename \n", prog);
  printf("       update checksums for firmware file\n");
  printf("Usage: %s [-b 0/1] [-j erasesize_in_kibytes] [-e] kernel filesystem "
         "image_filename \n",
         prog);
  printf("       generate firmware file and update checksums\n");
  printf("--------------------------------------------------\n");
  printf("       -e - generate header for web upload\n");
  printf("       -b 0/1 - clear/update bootloader checksum\n");
  printf("       -j erasesize_in_kibytes - generate header for jffs2 "
         "filesystem\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    0xeef(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xf08(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf4f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf75(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf9b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xfb9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xfdd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    %rdi,%rbx
lea    0xed5(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf3d(%rip),%rdi
call   1030 <puts@plt>
lea    0xedc(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf4a(%rip),%rdi
call   1030 <puts@plt>
lea    0xf71(%rip),%rdi
call   1030 <puts@plt>
lea    0xf98(%rip),%rdi
call   1030 <puts@plt>
lea    0xfb7(%rip),%rdi
call   1030 <puts@plt>
lea    0xfdc(%rip),%rdi
pop    %rbx
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [36 x i8] c"Usage: %s [-b 0/1] image_filename \0A\00"
@.str.1 = [43 x i8] c" update checksums for firmware file\0A\00"
@.str.2 = [85 x i8] c"Usage: %s [-b 0/1] [-j erasesize_in_kibytes] [-e] kernel filesystem image_filename \0A\00"
@.str.3 = [52 x i8] c" generate firmware file and update checksums\0A\00"
@.str.4 = [52 x i8] c"--------------------------------------------------\0A\00"
@.str.5 = [44 x i8] c" -e - generate header for web upload\0A\00"
@.str.6 = [50 x i8] c" -b 0/1 - clear/update bootloader checksum\0A\00"
@.str.7 = [71 x i8] c" -j erasesize_in_kibytes - generate header for jffs2 filesystem\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 ([36 x i8], [36 x i8]* @.str, i64 0, i64 0), i8* %3)
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([43 x i8], [43 x i8]* @.str.1, i64 0, i64 0))
%6 = load i8*, i8** %2
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([85 x i8], [85 x i8]* @.str.2, i64 0, i64 0), i8* %6)
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.3, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.4, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str.5, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.6, i64 0, i64 0))
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([71 x i8], [71 x i8]* @.str.7, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str = [36 x i8] c"Usage: %s [-b 0/1] image_filename \0A\00"
@.str.2 = [85 x i8] c"Usage: %s [-b 0/1] [-j erasesize_in_kibytes] [-e] kernel filesystem image_filename \0A\00"
@str = [42 x i8] c" update checksums for firmware file\00"
@str.8 = [51 x i8] c" generate firmware file and update checksums\00"
@str.9 = [51 x i8] c"--------------------------------------------------\00"
@str.10 = [43 x i8] c" -e - generate header for web upload\00"
@str.11 = [49 x i8] c" -b 0/1 - clear/update bootloader checksum\00"
@str.12 = [70 x i8] c" -j erasesize_in_kibytes - generate header for jffs2 filesystem\00"
define void @usage(i8* %0) {
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([36 x i8], [36 x i8]* @.str, i64 0, i64 0), i8* %0)
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([42 x i8], [42 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([85 x i8], [85 x i8]* @.str.2, i64 0, i64 0), i8* %0)
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @str.8, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @str.9, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([43 x i8], [43 x i8]* @str.10, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str.11, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([70 x i8], [70 x i8]* @str.12, i64 0, i64 0))
ret void
}