#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*/ printf(char *, int);
int /*<<< orphan*/ system(char *);
int main() {
  int a;
  a = 0;
  while (a <= 50) {
    printf("%d\n", a);
    a = a + 2;
  }
  system("PAUSE");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
cmpl   $0x32,-0x8(%rbp)
jg     115d <main+0x3d>
mov    -0x8(%rbp),%esi
lea    0xeb6(%rip),%rdi
call   1040 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x2,%eax
mov    %eax,-0x8(%rbp)
jmp    1136 <main+0x16>
lea    0xea0(%rip),%rdi
call   1030 <system@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xed8(%rip),%rbx
mov    %rbx,%rdi
xor    %esi,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x4,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x6,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x8,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0xa,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0xc,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0xe,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x10,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x12,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x14,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x16,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x18,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x1a,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x1c,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x1e,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x20,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x22,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x24,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x26,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x28,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x2a,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x2c,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x2e,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x30,%esi
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x32,%esi
call   1040 <printf@plt>
lea    0xd86(%rip),%rdi
call   1030 <system@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%d\0A\00"
@.str.1 = [6 x i8] c"PAUSE\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
br label %3
3: ; preds = %6, %0
%4 = load i32, i32* %2
%5 = icmp sle i32 %4, 50
br i1 %5, label %6, label %11
6: ; preds = %3
%7 = load i32, i32* %2
%8 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %7)
%9 = load i32, i32* %2
%10 = add nsw i32 %9, 2
store i32 %10, i32* %2
br label %3
11: ; preds = %3
%12 = call i32 @system(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [4 x i8] c"%d\0A\00"
@.str.1 = [6 x i8] c"PAUSE\00"
define i32 @main() {
%1 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 0)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 2)
%3 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 4)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 6)
%5 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 8)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 10)
%7 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 12)
%8 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 14)
%9 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 16)
%10 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 18)
%11 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 20)
%12 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 22)
%13 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 24)
%14 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 26)
%15 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 28)
%16 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 30)
%17 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 32)
%18 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 34)
%19 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 36)
%20 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 38)
%21 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 40)
%22 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 42)
%23 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 44)
%24 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 46)
%25 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 48)
%26 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 50)
%27 = tail call i32 @system(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0))
ret i32 0
}