#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 EOF;
int getchar();
int /*<<< orphan*/ putchar(int);
int main() {
  int c, state;
  state = 0;
  while ((c = getchar()) != EOF) {
    if (c == ' ' || c == '\t') {
      state = 0;
      c = '\n';
    } else if (state == 0) {
      state = 1;
    }
    putchar(c);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0xc(%rbp)
mov    $0x0,%al
call   1040 <getchar@plt>
mov    %eax,-0x8(%rbp)
mov    0x2ea1(%rip),%rcx
cmp    (%rcx),%eax
je     1199 <main+0x79>
cmpl   $0x20,-0x8(%rbp)
je     1163 <main+0x43>
cmpl   $0x9,-0x8(%rbp)
jne    1176 <main+0x56>
movl   $0x0,-0xc(%rbp)
movl   $0xa,-0x8(%rbp)
jmp    118c <main+0x6c>
cmpl   $0x0,-0xc(%rbp)
jne    1187 <main+0x67>
movl   $0x1,-0xc(%rbp)
jmp    118c <main+0x6c>
mov    -0x8(%rbp),%edi
call   1030 <putchar@plt>
jmp    1136 <main+0x16>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
xor    %eax,%eax
call   1040 <getchar@plt>
mov    0x2eb9(%rip),%rbx
jmp    114c <main+0x2c>
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
call   1030 <putchar@plt>
xor    %eax,%eax
call   1040 <getchar@plt>
cmp    (%rbx),%eax
je     1163 <main+0x43>
mov    $0xa,%edi
cmp    $0x9,%eax
je     1140 <main+0x20>
cmp    $0x20,%eax
je     1140 <main+0x20>
mov    %eax,%edi
jmp    1140 <main+0x20>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@EOF = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %3
br label %4
4: ; preds = %20, %0
%5 = call i32 (...) @getchar()
store i32 %5, i32* %2
%6 = load i32, i32* @EOF
%7 = icmp ne i32 %5, %6
br i1 %7, label %8, label %23
8: ; preds = %4
%9 = load i32, i32* %2
%10 = icmp eq i32 %9, 32
br i1 %10, label %14, label %11
11: ; preds = %8
%12 = load i32, i32* %2
%13 = icmp eq i32 %12, 9
br i1 %13, label %14, label %15
14: ; preds = %11, %8
store i32 0, i32* %3
store i32 10, i32* %2
br label %20
15: ; preds = %11
%16 = load i32, i32* %3
%17 = icmp eq i32 %16, 0
br i1 %17, label %18, label %19
18: ; preds = %15
store i32 1, i32* %3
br label %19
19: ; preds = %18, %15
br label %20
20: ; preds = %19, %14
%21 = load i32, i32* %2
%22 = call i32 @putchar(i32 %21)
br label %4
23: ; preds = %4
ret i32 0
}

LLVM IR (-O2):
@EOF = global i32 0
define i32 @main() {
%1 = tail call i32 (...) @getchar()
%2 = load i32, i32* @EOF
%3 = icmp eq i32 %1, %2
br i1 %3, label %13, label %4
4: ; preds = %0, %7
%5 = phi i32 [ %10, %7 ], [ %1, %0 ]
switch i32 %5, label %6 [
i32 32, label %7
i32 9, label %7
]
6: ; preds = %4
br label %7
7: ; preds = %4, %4, %6
%8 = phi i32 [ %5, %6 ], [ 10, %4 ], [ 10, %4 ]
%9 = tail call i32 @putchar(i32 %8)
%10 = tail call i32 (...) @getchar()
%11 = load i32, i32* @EOF
%12 = icmp eq i32 %10, %11
br i1 %12, label %13, label %4
13: ; preds = %7, %0
ret i32 0
}