#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*/ fetch_execute_cycle();
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ read_bytecode(char *);
int main(int argc, char *argv[]) {
  if (argc < 2) {
    printf("usage: %s <bytecode-file>\n", argv[0]);
    return 1;
  }
  read_bytecode(argv[1]);
  printf("[ INFO ] Debug mode enabled. Pres INTRO to execute next INST.\n");
  fetch_execute_cycle();
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
jge    1171 <main+0x41>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xea2(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x1,-0x4(%rbp)
jmp    119a <main+0x6a>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1030 <read_bytecode@plt>
lea    0xe96(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    $0x0,%al
call   1050 <fetch_execute_cycle@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
cmp    $0x1,%edi
jg     115e <main+0x1e>
mov    (%rsi),%rsi
lea    0xeb0(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
mov    $0x1,%ebx
jmp    117c <main+0x3c>
mov    0x8(%rsi),%rdi
call   1040 <read_bytecode@plt>
lea    0xead(%rip),%rdi
call   1030 <puts@plt>
xor    %ebx,%ebx
xor    %eax,%eax
call   1060 <fetch_execute_cycle@plt>
mov    %ebx,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [27 x i8] c"usage: %s <bytecode-file>\0A\00"
@.str.1 = [63 x i8] c"[ INFO ] Debug mode enabled. Pres INTRO to execute next INST.\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = load i32, i32* %4
%7 = icmp slt i32 %6, 2
br i1 %7, label %8, label %13
8: ; preds = %2
%9 = load i8**, i8*** %5
%10 = getelementptr inbounds i8*, i8** %9, i64 0
%11 = load i8*, i8** %10
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0), i8* %11)
store i32 1, i32* %3
br label %20
13: ; preds = %2
%14 = load i8**, i8*** %5
%15 = getelementptr inbounds i8*, i8** %14, i64 1
%16 = load i8*, i8** %15
%17 = call i32 @read_bytecode(i8* %16)
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.1, i64 0, i64 0))
%19 = call i32 (...) @fetch_execute_cycle()
store i32 0, i32* %3
br label %20
20: ; preds = %13, %8
%21 = load i32, i32* %3
ret i32 %21
}

LLVM IR (-O2):
@.str = [27 x i8] c"usage: %s <bytecode-file>\0A\00"
@str = [62 x i8] c"[ INFO ] Debug mode enabled. Pres INTRO to execute next INST.\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 2
br i1 %3, label %4, label %7
4: ; preds = %2
%5 = load i8*, i8** %1
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([27 x i8], [27 x i8]* @.str, i64 0, i64 0), i8* %5)
br label %13
7: ; preds = %2
%8 = getelementptr inbounds i8*, i8** %1, i64 1
%9 = load i8*, i8** %8
%10 = tail call i32 @read_bytecode(i8* %9)
%11 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([62 x i8], [62 x i8]* @str, i64 0, i64 0))
%12 = tail call i32 (...) @fetch_execute_cycle()
br label %13
13: ; preds = %7, %4
%14 = phi i32 [ 1, %4 ], [ 0, %7 ]
ret i32 %14
}