#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 /*<<< orphan*/ scanf(char *, int *, int *);
int main() {
  int a;
  int b;
  int i;
  scanf("%d %d", &a, &b);
  for (i = a; i <= b; i++)
    printf(" %d ", i);
  printf("\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    %eax,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jg     1174 <main+0x54>
mov    -0x10(%rbp),%esi
lea    0xea7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1149 <main+0x29>
lea    0xe90(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
lea    0xec5(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
call   1050 <scanf@plt>
mov    0x4(%rsp),%ebx
cmp    (%rsp),%ebx
jg     1176 <main+0x46>
lea    0xeae(%rip),%r14
nopl   0x0(%rax,%rax,1)
mov    %r14,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x1(%rbx),%eax
cmp    (%rsp),%ebx
mov    %eax,%ebx
jl     1160 <main+0x30>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [6 x i8] c"%d %d\00"
@.str.1 = [5 x i8] c" %d \00"
@.str.2 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32* %2, i32* %3)
%6 = load i32, i32* %2
store i32 %6, i32* %4
br label %7
7: ; preds = %14, %0
%8 = load i32, i32* %4
%9 = load i32, i32* %3
%10 = icmp sle i32 %8, %9
br i1 %10, label %11, label %17
11: ; preds = %7
%12 = load i32, i32* %4
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32 %12)
br label %14
14: ; preds = %11
%15 = load i32, i32* %4
%16 = add nsw i32 %15, 1
store i32 %16, i32* %4
br label %7
17: ; preds = %7
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [6 x i8] c"%d %d\00"
@.str.1 = [5 x i8] c" %d \00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
%4 = bitcast i32* %2 to i8*
%5 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32* %1, i32* %2)
%6 = load i32, i32* %1
%7 = load i32, i32* %2
%8 = icmp sgt i32 %6, %7
br i1 %8, label %15, label %9
9: ; preds = %0, %9
%10 = phi i32 [ %12, %9 ], [ %6, %0 ]
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32 %10)
%12 = add nsw i32 %10, 1
%13 = load i32, i32* %2
%14 = icmp slt i32 %10, %13
br i1 %14, label %9, label %15
15: ; preds = %9, %0
%16 = call i32 @putchar(i32 10)
ret i32 0
}