#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 EXIT_SUCCESS;
int getchar();
int /*<<< orphan*/ printf(char *, int);
int main(int argc, char *argv[]) {
  int offset = 0;
  int c;
  while ((c = getchar()) != EOF) {
    if (c == '\n')
      printf("%d\n", offset);
    offset++;
  }
  return EXIT_SUCCESS;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
mov    $0x0,%al
call   1040 <getchar@plt>
mov    %eax,-0x18(%rbp)
mov    0x2e9a(%rip),%rcx
cmp    (%rcx),%eax
je     117d <main+0x5d>
cmpl   $0xa,-0x18(%rbp)
jne    116f <main+0x4f>
mov    -0x14(%rbp),%esi
lea    0xe96(%rip),%rdi
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    113d <main+0x1d>
mov    0x2e54(%rip),%rax
mov    (%rax),%eax
add    $0x20,%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    1144 <main+0x24>
mov    0x2e9b(%rip),%rax
mov    (%rax),%eax
pop    %rbx
pop    %r14
pop    %rbp
ret
lea    0xeb5(%rip),%r14
xor    %ebp,%ebp
jmp    115e <main+0x3e>
nop
add    $0x1,%ebp
xor    %eax,%eax
call   1040 <getchar@plt>
cmp    (%rbx),%eax
je     1136 <main+0x16>
cmp    $0xa,%eax
jne    1150 <main+0x30>
mov    %r14,%rdi
mov    %ebp,%esi
call   1030 <printf@plt>
jmp    1150 <main+0x30>

LLVM IR (-O0):
@EOF = global i32 0
@.str = [4 x i8] c"%d\0A\00"
@EXIT_SUCCESS = global i32 0
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store i32 0, i32* %6
br label %8
8: ; preds = %18, %2
%9 = call i32 (...) @getchar()
store i32 %9, i32* %7
%10 = load i32, i32* @EOF
%11 = icmp ne i32 %9, %10
br i1 %11, label %12, label %21
12: ; preds = %8
%13 = load i32, i32* %7
%14 = icmp eq i32 %13, 10
br i1 %14, label %15, label %18
15: ; preds = %12
%16 = load i32, i32* %6
%17 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %16)
br label %18
18: ; preds = %15, %12
%19 = load i32, i32* %6
%20 = add nsw i32 %19, 1
store i32 %20, i32* %6
br label %8
21: ; preds = %8
%22 = load i32, i32* @EXIT_SUCCESS
ret i32 %22
}

LLVM IR (-O2):
@EOF = global i32 0
@.str = [4 x i8] c"%d\0A\00"
@EXIT_SUCCESS = global i32 0
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 (...) @getchar()
%4 = load i32, i32* @EOF
%5 = icmp eq i32 %3, %4
br i1 %5, label %17, label %6
6: ; preds = %2, %12
%7 = phi i32 [ %14, %12 ], [ %3, %2 ]
%8 = phi i32 [ %13, %12 ], [ 0, %2 ]
%9 = icmp eq i32 %7, 10
br i1 %9, label %10, label %12
10: ; preds = %6
%11 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %8)
br label %12
12: ; preds = %10, %6
%13 = add nuw nsw i32 %8, 1
%14 = tail call i32 (...) @getchar()
%15 = load i32, i32* @EOF
%16 = icmp eq i32 %14, %15
br i1 %16, label %17, label %6
17: ; preds = %12, %2
%18 = load i32, i32* @EXIT_SUCCESS
ret i32 %18
}