#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*/ fprintf(int /*<<< orphan*/, char *, ...);
int /*<<< orphan*/ stderr;
usage(char *s) {
  fprintf(stderr, "usage: reed_sol_03 k w - Does a simple RAID-6 coding "
                  "example in GF(2^w).\n");
  fprintf(stderr, "       \n");
  fprintf(stderr, "       w must be 8, 16 or 32.  k+2 must be <= 2^w.  It sets "
                  "up a classic\n");
  fprintf(stderr, "       RAID-6 coding matrix based on Anvin's optimization "
                  "and encodes\n");
  fprintf(stderr, "       %d-byte devices with it.  Then it decodes.\n",
          sizeof(long));
  fprintf(stderr, "       \n");
  fprintf(stderr, "This demonstrates: reed_sol_r6_encode()\n");
  fprintf(stderr, "                   reed_sol_r6_coding_matrix()\n");
  fprintf(stderr, "                   jerasure_matrix_decode()\n");
  fprintf(stderr, "                   jerasure_print_matrix()\n");
  if (s != NULL)
    fprintf(stderr, "%s\n", s);
  exit(1);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2ead(%rip),%rax
mov    (%rax),%edi
lea    0xec4(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e96(%rip),%rax
mov    (%rax),%edi
lea    0xef7(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e7f(%rip),%rax
mov    (%rax),%edi
lea    0xee9(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e68(%rip),%rax
mov    (%rax),%edi
lea    0xf1c(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e51(%rip),%rax
mov    (%rax),%edi
lea    0xf4c(%rip),%rsi
mov    $0x8,%edx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e35(%rip),%rax
mov    (%rax),%edi
lea    0xe96(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e1e(%rip),%rax
mov    (%rax),%edi
lea    0xf4c(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e07(%rip),%rax
mov    (%rax),%edi
lea    0xf5e(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2df0(%rip),%rax
mov    (%rax),%edi
lea    0xf77(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2dd9(%rip),%rax
mov    (%rax),%edi
lea    0xf8d(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
cmpq   $0x0,-0x8(%rbp)
je     123d <usage+0x11d>
mov    0x2db7(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xf93(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %r15
push   %r14
push   %rbx
mov    %rdi,%r14
mov    0x2eb1(%rip),%rbx
mov    (%rbx),%edi
lea    0xec8(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf02(%rip),%r15
mov    %r15,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xef8(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf32(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf69(%rip),%rsi
mov    $0x8,%edx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
mov    %r15,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf7b(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf94(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xfb4(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xfd1(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
test   %r14,%r14
je     11eb <usage+0xcb>
mov    (%rbx),%edi
lea    0xfe8(%rip),%rsi
mov    %r14,%rdx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1040 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [74 x i8] c"usage: reed_sol_03 k w - Does a simple RAID-6 coding example in GF(2^w).\0A\00"
@.str.1 = [9 x i8] c" \0A\00"
@.str.2 = [74 x i8] c" w must be 8, 16 or 32. k+2 must be <= 2^w. It sets up a classic\0A\00"
@.str.3 = [71 x i8] c" RAID-6 coding matrix based on Anvin's optimization and encodes\0A\00"
@.str.4 = [51 x i8] c" %d-byte devices with it. Then it decodes.\0A\00"
@.str.5 = [41 x i8] c"This demonstrates: reed_sol_r6_encode()\0A\00"
@.str.6 = [48 x i8] c" reed_sol_r6_coding_matrix()\0A\00"
@.str.7 = [45 x i8] c" jerasure_matrix_decode()\0A\00"
@.str.8 = [44 x i8] c" jerasure_print_matrix()\0A\00"
@.str.9 = [4 x i8] c"%s\0A\00"
define i32 @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i32, i32* @stderr
%4 = call i32 (i32, i8*, ...) @fprintf(i32 %3, i8* getelementptr inbounds ([74 x i8], [74 x i8]* @.str, i64 0, i64 0))
%5 = load i32, i32* @stderr
%6 = call i32 (i32, i8*, ...) @fprintf(i32 %5, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0))
%7 = load i32, i32* @stderr
%8 = call i32 (i32, i8*, ...) @fprintf(i32 %7, i8* getelementptr inbounds ([74 x i8], [74 x i8]* @.str.2, i64 0, i64 0))
%9 = load i32, i32* @stderr
%10 = call i32 (i32, i8*, ...) @fprintf(i32 %9, i8* getelementptr inbounds ([71 x i8], [71 x i8]* @.str.3, i64 0, i64 0))
%11 = load i32, i32* @stderr
%12 = call i32 (i32, i8*, ...) @fprintf(i32 %11, i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.4, i64 0, i64 0), i64 8)
%13 = load i32, i32* @stderr
%14 = call i32 (i32, i8*, ...) @fprintf(i32 %13, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0))
%15 = load i32, i32* @stderr
%16 = call i32 (i32, i8*, ...) @fprintf(i32 %15, i8* getelementptr inbounds ([41 x i8], [41 x i8]* @.str.5, i64 0, i64 0))
%17 = load i32, i32* @stderr
%18 = call i32 (i32, i8*, ...) @fprintf(i32 %17, i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.6, i64 0, i64 0))
%19 = load i32, i32* @stderr
%20 = call i32 (i32, i8*, ...) @fprintf(i32 %19, i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str.7, i64 0, i64 0))
%21 = load i32, i32* @stderr
%22 = call i32 (i32, i8*, ...) @fprintf(i32 %21, i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str.8, i64 0, i64 0))
%23 = load i8*, i8** %2
%24 = icmp ne i8* %23, null
br i1 %24, label %25, label %29
25: ; preds = %1
%26 = load i32, i32* @stderr
%27 = load i8*, i8** %2
%28 = call i32 (i32, i8*, ...) @fprintf(i32 %26, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.9, i64 0, i64 0), i8* %27)
br label %29
29: ; preds = %25, %1
%30 = call i32 @exit(i32 1)
unreachable
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [74 x i8] c"usage: reed_sol_03 k w - Does a simple RAID-6 coding example in GF(2^w).\0A\00"
@.str.1 = [9 x i8] c" \0A\00"
@.str.2 = [74 x i8] c" w must be 8, 16 or 32. k+2 must be <= 2^w. It sets up a classic\0A\00"
@.str.3 = [71 x i8] c" RAID-6 coding matrix based on Anvin's optimization and encodes\0A\00"
@.str.4 = [51 x i8] c" %d-byte devices with it. Then it decodes.\0A\00"
@.str.5 = [41 x i8] c"This demonstrates: reed_sol_r6_encode()\0A\00"
@.str.6 = [48 x i8] c" reed_sol_r6_coding_matrix()\0A\00"
@.str.7 = [45 x i8] c" jerasure_matrix_decode()\0A\00"
@.str.8 = [44 x i8] c" jerasure_print_matrix()\0A\00"
@.str.9 = [4 x i8] c"%s\0A\00"
define i32 @usage(i8* %0) {
%2 = load i32, i32* @stderr
%3 = tail call i32 (i32, i8*, ...) @fprintf(i32 %2, i8* getelementptr inbounds ([74 x i8], [74 x i8]* @.str, i64 0, i64 0))
%4 = load i32, i32* @stderr
%5 = tail call i32 (i32, i8*, ...) @fprintf(i32 %4, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0))
%6 = load i32, i32* @stderr
%7 = tail call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([74 x i8], [74 x i8]* @.str.2, i64 0, i64 0))
%8 = load i32, i32* @stderr
%9 = tail call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([71 x i8], [71 x i8]* @.str.3, i64 0, i64 0))
%10 = load i32, i32* @stderr
%11 = tail call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.4, i64 0, i64 0), i64 8)
%12 = load i32, i32* @stderr
%13 = tail call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0))
%14 = load i32, i32* @stderr
%15 = tail call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([41 x i8], [41 x i8]* @.str.5, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = tail call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.6, i64 0, i64 0))
%18 = load i32, i32* @stderr
%19 = tail call i32 (i32, i8*, ...) @fprintf(i32 %18, i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str.7, i64 0, i64 0))
%20 = load i32, i32* @stderr
%21 = tail call i32 (i32, i8*, ...) @fprintf(i32 %20, i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str.8, i64 0, i64 0))
%22 = icmp eq i8* %0, null
br i1 %22, label %26, label %23
23: ; preds = %1
%24 = load i32, i32* @stderr
%25 = tail call i32 (i32, i8*, ...) @fprintf(i32 %24, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.9, i64 0, i64 0), i8* %0)
br label %26
26: ; preds = %23, %1
%27 = tail call i32 @exit(i32 1)
unreachable
}