#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 */
unsigned char rj_sbox(unsigned char);
void aes_subBytes(unsigned char *buf) {
  register unsigned char i;
  for (i = 0; i < 16; i++)
    buf[i] = rj_sbox(buf[i]);
}


x86 assembly (clang, -O0):
<aes_subBytes>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movb   $0x0,-0x9(%rbp)
movzbl -0x9(%rbp),%eax
cmp    $0x10,%eax
jge    1158 <aes_subBytes+0x48>
mov    -0x8(%rbp),%rax
movzbl -0x9(%rbp),%ecx
movzbl (%rax,%rcx,1),%edi
call   1030 <rj_sbox@plt>
mov    %al,%dl
mov    -0x8(%rbp),%rax
movzbl -0x9(%rbp),%ecx
mov    %dl,(%rax,%rcx,1)
mov    -0x9(%rbp),%al
add    $0x1,%al
mov    %al,-0x9(%rbp)
jmp    1120 <aes_subBytes+0x10>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<aes_subBytes>:
push   %rbx
mov    %rdi,%rbx
movzbl (%rdi),%edi
call   1030 <rj_sbox@plt>
mov    %al,(%rbx)
movzbl 0x1(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0x1(%rbx)
movzbl 0x2(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0x2(%rbx)
movzbl 0x3(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0x3(%rbx)
movzbl 0x4(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0x4(%rbx)
movzbl 0x5(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0x5(%rbx)
movzbl 0x6(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0x6(%rbx)
movzbl 0x7(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0x7(%rbx)
movzbl 0x8(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0x8(%rbx)
movzbl 0x9(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0x9(%rbx)
movzbl 0xa(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0xa(%rbx)
movzbl 0xb(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0xb(%rbx)
movzbl 0xc(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0xc(%rbx)
movzbl 0xd(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0xd(%rbx)
movzbl 0xe(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0xe(%rbx)
movzbl 0xf(%rbx),%edi
call   1030 <rj_sbox@plt>
mov    %al,0xf(%rbx)
pop    %rbx
ret

LLVM IR (-O0):
define void @aes_subBytes(i8* %0) {
%2 = alloca i8*
%3 = alloca i8
store i8* %0, i8** %2
store i8 0, i8* %3
br label %4
4: ; preds = %19, %1
%5 = load i8, i8* %3
%6 = zext i8 %5 to i32
%7 = icmp slt i32 %6, 16
br i1 %7, label %8, label %22
8: ; preds = %4
%9 = load i8*, i8** %2
%10 = load i8, i8* %3
%11 = zext i8 %10 to i64
%12 = getelementptr inbounds i8, i8* %9, i64 %11
%13 = load i8, i8* %12
%14 = call zeroext i8 @rj_sbox(i8 zeroext %13)
%15 = load i8*, i8** %2
%16 = load i8, i8* %3
%17 = zext i8 %16 to i64
%18 = getelementptr inbounds i8, i8* %15, i64 %17
store i8 %14, i8* %18
br label %19
19: ; preds = %8
%20 = load i8, i8* %3
%21 = add i8 %20, 1
store i8 %21, i8* %3
br label %4
22: ; preds = %4
ret void
}

LLVM IR (-O2):
define void @aes_subBytes(i8* nocapture %0) {
%2 = load i8, i8* %0
%3 = tail call zeroext i8 @rj_sbox(i8 zeroext %2)
store i8 %3, i8* %0
%4 = getelementptr inbounds i8, i8* %0, i64 1
%5 = load i8, i8* %4
%6 = tail call zeroext i8 @rj_sbox(i8 zeroext %5)
store i8 %6, i8* %4
%7 = getelementptr inbounds i8, i8* %0, i64 2
%8 = load i8, i8* %7
%9 = tail call zeroext i8 @rj_sbox(i8 zeroext %8)
store i8 %9, i8* %7
%10 = getelementptr inbounds i8, i8* %0, i64 3
%11 = load i8, i8* %10
%12 = tail call zeroext i8 @rj_sbox(i8 zeroext %11)
store i8 %12, i8* %10
%13 = getelementptr inbounds i8, i8* %0, i64 4
%14 = load i8, i8* %13
%15 = tail call zeroext i8 @rj_sbox(i8 zeroext %14)
store i8 %15, i8* %13
%16 = getelementptr inbounds i8, i8* %0, i64 5
%17 = load i8, i8* %16
%18 = tail call zeroext i8 @rj_sbox(i8 zeroext %17)
store i8 %18, i8* %16
%19 = getelementptr inbounds i8, i8* %0, i64 6
%20 = load i8, i8* %19
%21 = tail call zeroext i8 @rj_sbox(i8 zeroext %20)
store i8 %21, i8* %19
%22 = getelementptr inbounds i8, i8* %0, i64 7
%23 = load i8, i8* %22
%24 = tail call zeroext i8 @rj_sbox(i8 zeroext %23)
store i8 %24, i8* %22
%25 = getelementptr inbounds i8, i8* %0, i64 8
%26 = load i8, i8* %25
%27 = tail call zeroext i8 @rj_sbox(i8 zeroext %26)
store i8 %27, i8* %25
%28 = getelementptr inbounds i8, i8* %0, i64 9
%29 = load i8, i8* %28
%30 = tail call zeroext i8 @rj_sbox(i8 zeroext %29)
store i8 %30, i8* %28
%31 = getelementptr inbounds i8, i8* %0, i64 10
%32 = load i8, i8* %31
%33 = tail call zeroext i8 @rj_sbox(i8 zeroext %32)
store i8 %33, i8* %31
%34 = getelementptr inbounds i8, i8* %0, i64 11
%35 = load i8, i8* %34
%36 = tail call zeroext i8 @rj_sbox(i8 zeroext %35)
store i8 %36, i8* %34
%37 = getelementptr inbounds i8, i8* %0, i64 12
%38 = load i8, i8* %37
%39 = tail call zeroext i8 @rj_sbox(i8 zeroext %38)
store i8 %39, i8* %37
%40 = getelementptr inbounds i8, i8* %0, i64 13
%41 = load i8, i8* %40
%42 = tail call zeroext i8 @rj_sbox(i8 zeroext %41)
store i8 %42, i8* %40
%43 = getelementptr inbounds i8, i8* %0, i64 14
%44 = load i8, i8* %43
%45 = tail call zeroext i8 @rj_sbox(i8 zeroext %44)
store i8 %45, i8* %43
%46 = getelementptr inbounds i8, i8* %0, i64 15
%47 = load i8, i8* %46
%48 = tail call zeroext i8 @rj_sbox(i8 zeroext %47)
store i8 %48, i8* %46
ret void
}