#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;
void usage(char *s) {
  fprintf(stderr,
          "usage: gf_add a b w - does addition of a and b in GF(2^w)\n");
  fprintf(stderr, "       If w has an h on the end, treat a, b and the sum as "
                  "hexadecimal (no 0x required)\n");
  fprintf(stderr, "\n");
  fprintf(stderr, "       legal w are: 1-32, 64 and 128\n");
  fprintf(stderr,
          "       128 is hex only (i.e. '128' will be an error - do '128h')\n");
  if (s != NULL)
    fprintf(stderr, "%s", 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    0xee8(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e7f(%rip),%rax
mov    (%rax),%edi
lea    0xf90(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e68(%rip),%rax
mov    (%rax),%edi
lea    0xf13(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e51(%rip),%rax
mov    (%rax),%edi
lea    0xf22(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
cmpq   $0x0,-0x8(%rbp)
je     11c5 <usage+0xa5>
mov    0x2e2f(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xf3e(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%r14
mov    0x2eb2(%rip),%rbx
mov    (%rbx),%edi
lea    0xec9(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xef4(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xfa3(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf2d(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf43(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
test   %r14,%r14
je     1196 <usage+0x76>
mov    (%rbx),%edi
lea    0xf70(%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 = [59 x i8] c"usage: gf_add a b w - does addition of a and b in GF(2^w)\0A\00"
@.str.1 = [89 x i8] c" If w has an h on the end, treat a, b and the sum as hexadecimal (no 0x required)\0A\00"
@.str.2 = [2 x i8] c"\0A\00"
@.str.3 = [38 x i8] c" legal w are: 1-32, 64 and 128\0A\00"
@.str.4 = [66 x i8] c" 128 is hex only (i.e. '128' will be an error - do '128h')\0A\00"
@.str.5 = [3 x i8] c"%s\00"
define void @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 ([59 x i8], [59 x i8]* @.str, i64 0, i64 0))
%5 = load i32, i32* @stderr
%6 = call i32 (i32, i8*, ...) @fprintf(i32 %5, i8* getelementptr inbounds ([89 x i8], [89 x i8]* @.str.1, i64 0, i64 0))
%7 = load i32, i32* @stderr
%8 = call i32 (i32, i8*, ...) @fprintf(i32 %7, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
%9 = load i32, i32* @stderr
%10 = call i32 (i32, i8*, ...) @fprintf(i32 %9, i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.3, i64 0, i64 0))
%11 = load i32, i32* @stderr
%12 = call i32 (i32, i8*, ...) @fprintf(i32 %11, i8* getelementptr inbounds ([66 x i8], [66 x i8]* @.str.4, i64 0, i64 0))
%13 = load i8*, i8** %2
%14 = icmp ne i8* %13, null
br i1 %14, label %15, label %19
15: ; preds = %1
%16 = load i32, i32* @stderr
%17 = load i8*, i8** %2
%18 = call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.5, i64 0, i64 0), i8* %17)
br label %19
19: ; preds = %15, %1
%20 = call i32 @exit(i32 1)
unreachable
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [59 x i8] c"usage: gf_add a b w - does addition of a and b in GF(2^w)\0A\00"
@.str.1 = [89 x i8] c" If w has an h on the end, treat a, b and the sum as hexadecimal (no 0x required)\0A\00"
@.str.2 = [2 x i8] c"\0A\00"
@.str.3 = [38 x i8] c" legal w are: 1-32, 64 and 128\0A\00"
@.str.4 = [66 x i8] c" 128 is hex only (i.e. '128' will be an error - do '128h')\0A\00"
@.str.5 = [3 x i8] c"%s\00"
define void @usage(i8* %0) {
%2 = load i32, i32* @stderr
%3 = tail call i32 (i32, i8*, ...) @fprintf(i32 %2, i8* getelementptr inbounds ([59 x i8], [59 x i8]* @.str, i64 0, i64 0))
%4 = load i32, i32* @stderr
%5 = tail call i32 (i32, i8*, ...) @fprintf(i32 %4, i8* getelementptr inbounds ([89 x i8], [89 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 ([2 x i8], [2 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 ([38 x i8], [38 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 ([66 x i8], [66 x i8]* @.str.4, i64 0, i64 0))
%12 = icmp eq i8* %0, null
br i1 %12, label %16, label %13
13: ; preds = %1
%14 = load i32, i32* @stderr
%15 = tail call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.5, i64 0, i64 0), i8* %0)
br label %16
16: ; preds = %13, %1
%17 = tail call i32 @exit(i32 1)
unreachable
}