#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*/ getchar();
int /*<<< orphan*/ pause();
int /*<<< orphan*/ printf(char *, ...);
int main(void) {
  int x;
  for (x = 10; x > 0; x--) {
    printf("%d\n", x);
    pause();
  }
  printf("\nBlast Off!");
  getchar();
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0xa,-0x8(%rbp)
cmpl   $0x0,-0x8(%rbp)
jle    1176 <main+0x46>
mov    -0x8(%rbp),%esi
lea    0xea6(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    $0x0,%al
call   1050 <pause@plt>
mov    -0x8(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,-0x8(%rbp)
jmp    1146 <main+0x16>
lea    0xe87(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    $0x0,%al
call   1040 <getchar@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xec8(%rip),%rbx
mov    %rbx,%rdi
mov    $0xa,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
mov    %rbx,%rdi
mov    $0x9,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
mov    %rbx,%rdi
mov    $0x8,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
mov    %rbx,%rdi
mov    $0x7,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
mov    %rbx,%rdi
mov    $0x6,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
mov    %rbx,%rdi
mov    $0x5,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
mov    %rbx,%rdi
mov    $0x4,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
mov    %rbx,%rdi
mov    $0x3,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
mov    %rbx,%rdi
mov    $0x1,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <pause@plt>
lea    0xde9(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <getchar@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%d\0A\00"
@.str.1 = [12 x i8] c"\0ABlast Off!\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
store i32 10, i32* %2
br label %3
3: ; preds = %10, %0
%4 = load i32, i32* %2
%5 = icmp sgt i32 %4, 0
br i1 %5, label %6, label %13
6: ; preds = %3
%7 = load i32, i32* %2
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %7)
%9 = call i32 (...) @pause()
br label %10
10: ; preds = %6
%11 = load i32, i32* %2
%12 = add nsw i32 %11, -1
store i32 %12, i32* %2
br label %3
13: ; preds = %3
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0))
%15 = call i32 (...) @getchar()
ret i32 0
}

LLVM IR (-O2):
@.str = [4 x i8] c"%d\0A\00"
@.str.1 = [12 x i8] c"\0ABlast Off!\00"
define i32 @main() {
%1 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 10)
%2 = tail call i32 (...) @pause()
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 9)
%4 = tail call i32 (...) @pause()
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 8)
%6 = tail call i32 (...) @pause()
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 7)
%8 = tail call i32 (...) @pause()
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 6)
%10 = tail call i32 (...) @pause()
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 5)
%12 = tail call i32 (...) @pause()
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 4)
%14 = tail call i32 (...) @pause()
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 3)
%16 = tail call i32 (...) @pause()
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 2)
%18 = tail call i32 (...) @pause()
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 1)
%20 = tail call i32 (...) @pause()
%21 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0))
%22 = tail call i32 (...) @getchar()
ret i32 0
}