#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(void) {
  int ret = 1;
  int c = 0;
  int state = 0;
  while ((c = getchar()) != EOF) {
    if (c == ' ' || c == '\n' || c == '\t') {
      if (state == 1)
        putchar('\n');
      state = 0;
    } else {
      state = 1;
      putchar(c);
    }
  }
  return ret;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x1,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
mov    $0x0,%al
call   1040 <getchar@plt>
mov    %eax,-0xc(%rbp)
mov    0x2e93(%rip),%rcx
cmp    (%rcx),%eax
je     11af <main+0x8f>
cmpl   $0x20,-0xc(%rbp)
je     117b <main+0x5b>
cmpl   $0xa,-0xc(%rbp)
je     117b <main+0x5b>
cmpl   $0x9,-0xc(%rbp)
jne    119b <main+0x7b>
cmpl   $0x1,-0x10(%rbp)
jne    118f <main+0x6f>
mov    $0xa,%edi
call   1030 <putchar@plt>
movl   $0x0,-0x10(%rbp)
jmp    11aa <main+0x8a>
movl   $0x1,-0x10(%rbp)
mov    -0xc(%rbp),%edi
call   1030 <putchar@plt>
jmp    1144 <main+0x24>
mov    -0x8(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r14
push   %rbx
xor    %eax,%eax
call   1040 <getchar@plt>
mov    0x2eb6(%rip),%rbx
cmp    (%rbx),%eax
jne    1140 <main+0x20>
mov    $0x1,%eax
pop    %rbx
pop    %r14
pop    %rbp
ret
movabs $0x100000600,%r14
xor    %ecx,%ecx
jmp    1164 <main+0x44>
xchg   %ax,%ax
mov    %eax,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
call   1040 <getchar@plt>
mov    %ebp,%ecx
cmp    (%rbx),%eax
je     1136 <main+0x16>
mov    $0x1,%ebp
cmp    $0x20,%eax
ja     1150 <main+0x30>
mov    %eax,%edx
bt     %rdx,%r14
jae    1150 <main+0x30>
xor    %ebp,%ebp
mov    $0xa,%eax
cmp    $0x1,%ecx
je     1150 <main+0x30>
jmp    1157 <main+0x37>

LLVM IR (-O0):
@EOF = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
store i32 1, i32* %2
store i32 0, i32* %3
store i32 0, i32* %4
br label %5
5: ; preds = %27, %0
%6 = call i32 (...) @getchar()
store i32 %6, i32* %3
%7 = load i32, i32* @EOF
%8 = icmp ne i32 %6, %7
br i1 %8, label %9, label %28
9: ; preds = %5
%10 = load i32, i32* %3
%11 = icmp eq i32 %10, 32
br i1 %11, label %18, label %12
12: ; preds = %9
%13 = load i32, i32* %3
%14 = icmp eq i32 %13, 10
br i1 %14, label %18, label %15
15: ; preds = %12
%16 = load i32, i32* %3
%17 = icmp eq i32 %16, 9
br i1 %17, label %18, label %24
18: ; preds = %15, %12, %9
%19 = load i32, i32* %4
%20 = icmp eq i32 %19, 1
br i1 %20, label %21, label %23
21: ; preds = %18
%22 = call i32 @putchar(i32 10)
br label %23
23: ; preds = %21, %18
store i32 0, i32* %4
br label %27
24: ; preds = %15
store i32 1, i32* %4
%25 = load i32, i32* %3
%26 = call i32 @putchar(i32 %25)
br label %27
27: ; preds = %24, %23
br label %5
28: ; preds = %5
%29 = load i32, i32* %2
ret i32 %29
}

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 %18, label %4
4: ; preds = %0, %13
%5 = phi i32 [ %15, %13 ], [ %1, %0 ]
%6 = phi i32 [ %14, %13 ], [ 0, %0 ]
switch i32 %5, label %9 [
i32 32, label %7
i32 10, label %7
i32 9, label %7
]
7: ; preds = %4, %4, %4
%8 = icmp eq i32 %6, 1
br i1 %8, label %9, label %13
9: ; preds = %4, %7
%10 = phi i32 [ 10, %7 ], [ %5, %4 ]
%11 = phi i32 [ 0, %7 ], [ 1, %4 ]
%12 = tail call i32 @putchar(i32 %10)
br label %13
13: ; preds = %9, %7
%14 = phi i32 [ 0, %7 ], [ %11, %9 ]
%15 = tail call i32 (...) @getchar()
%16 = load i32, i32* @EOF
%17 = icmp eq i32 %15, %16
br i1 %17, label %18, label %4
18: ; preds = %13, %0
ret i32 1
}