#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 */
typedef int /*<<< orphan*/ uint8_t;

/* Variables and functions */
int /*<<< orphan*/ gf_pow(int, int);
void gen_encoding_matrix(uint8_t *encodingMatrix, int row, int col) {
  int i;
  int j;
  for (i = 0; i < row; i++) {
    for (j = 0; j < col; j++) {
      encodingMatrix[i * col + j] = gf_pow((j + 1) % 256, i);
    }
  }
}


x86 assembly (clang, -O0):
<gen_encoding_matrix>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
mov    %edx,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1197 <gen_encoding_matrix+0x87>
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x10(%rbp),%eax
jge    1184 <gen_encoding_matrix+0x74>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    $0x100,%ecx
cltd
idiv   %ecx
mov    %edx,%edi
mov    -0x14(%rbp),%esi
call   1030 <gf_pow@plt>
mov    %eax,%edx
mov    -0x8(%rbp),%rax
mov    -0x14(%rbp),%ecx
imul   -0x10(%rbp),%ecx
add    -0x18(%rbp),%ecx
movslq %ecx,%rcx
mov    %edx,(%rax,%rcx,4)
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    113c <gen_encoding_matrix+0x2c>
jmp    1189 <gen_encoding_matrix+0x79>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1129 <gen_encoding_matrix+0x19>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<gen_encoding_matrix>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x18,%rsp
mov    %edx,0xc(%rsp)
test   %esi,%esi
jle    117d <gen_encoding_matrix+0x6d>
mov    %rdi,%rbx
movslq 0xc(%rsp),%r15
mov    %esi,%eax
mov    %rax,0x10(%rsp)
mov    %r15d,%r13d
shl    $0x2,%r15
xor    %ebp,%ebp
jmp    114e <gen_encoding_matrix+0x3e>
add    $0x1,%rbp
add    %r15,%rbx
cmp    0x10(%rsp),%rbp
je     117d <gen_encoding_matrix+0x6d>
cmpl   $0x0,0xc(%rsp)
jle    1140 <gen_encoding_matrix+0x30>
xor    %r14d,%r14d
nopl   0x0(%rax,%rax,1)
lea    0x1(%r14),%r12
movzbl %r12b,%edi
mov    %ebp,%esi
call   1030 <gf_pow@plt>
mov    %eax,(%rbx,%r14,4)
mov    %r12,%r14
cmp    %r12,%r13
jne    1160 <gen_encoding_matrix+0x50>
jmp    1140 <gen_encoding_matrix+0x30>
add    $0x18,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
define void @gen_encoding_matrix(i32* %0, i32 %1, i32 %2) {
%4 = alloca i32*
%5 = alloca i32
%6 = alloca i32
%7 = alloca i32
%8 = alloca i32
store i32* %0, i32** %4
store i32 %1, i32* %5
store i32 %2, i32* %6
store i32 0, i32* %7
br label %9
9: ; preds = %36, %3
%10 = load i32, i32* %7
%11 = load i32, i32* %5
%12 = icmp slt i32 %10, %11
br i1 %12, label %13, label %39
13: ; preds = %9
store i32 0, i32* %8
br label %14
14: ; preds = %32, %13
%15 = load i32, i32* %8
%16 = load i32, i32* %6
%17 = icmp slt i32 %15, %16
br i1 %17, label %18, label %35
18: ; preds = %14
%19 = load i32, i32* %8
%20 = add nsw i32 %19, 1
%21 = srem i32 %20, 256
%22 = load i32, i32* %7
%23 = call i32 @gf_pow(i32 %21, i32 %22)
%24 = load i32*, i32** %4
%25 = load i32, i32* %7
%26 = load i32, i32* %6
%27 = mul nsw i32 %25, %26
%28 = load i32, i32* %8
%29 = add nsw i32 %27, %28
%30 = sext i32 %29 to i64
%31 = getelementptr inbounds i32, i32* %24, i64 %30
store i32 %23, i32* %31
br label %32
32: ; preds = %18
%33 = load i32, i32* %8
%34 = add nsw i32 %33, 1
store i32 %34, i32* %8
br label %14
35: ; preds = %14
br label %36
36: ; preds = %35
%37 = load i32, i32* %7
%38 = add nsw i32 %37, 1
store i32 %38, i32* %7
br label %9
39: ; preds = %9
ret void
}

LLVM IR (-O2):
define void @gen_encoding_matrix(i32* nocapture writeonly %0, i32 %1, i32 %2) {
%4 = icmp sgt i32 %1, 0
br i1 %4, label %5, label %27
5: ; preds = %3
%6 = icmp sgt i32 %2, 0
%7 = sext i32 %2 to i64
%8 = zext i32 %1 to i64
%9 = zext i32 %2 to i64
br label %10
10: ; preds = %5, %24
%11 = phi i64 [ 0, %5 ], [ %25, %24 ]
br i1 %6, label %12, label %24
12: ; preds = %10
%13 = mul nsw i64 %11, %7
%14 = trunc i64 %11 to i32
br label %15
15: ; preds = %12, %15
%16 = phi i64 [ 0, %12 ], [ %17, %15 ]
%17 = add nuw nsw i64 %16, 1
%18 = trunc i64 %17 to i32
%19 = and i32 %18, 255
%20 = tail call i32 @gf_pow(i32 %19, i32 %14)
%21 = add nsw i64 %16, %13
%22 = getelementptr inbounds i32, i32* %0, i64 %21
store i32 %20, i32* %22
%23 = icmp eq i64 %17, %9
br i1 %23, label %24, label %15
24: ; preds = %15, %10
%25 = add nuw nsw i64 %11, 1
%26 = icmp eq i64 %25, %8
br i1 %26, label %27, label %10
27: ; preds = %24, %3
ret void
}