#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*/ assert(int);
int count_1_bits(char *);
void test_count_1_bits(void) {
  assert(count_1_bits("0") == 0);
  assert(count_1_bits("1") == 1);
  assert(count_1_bits("10101") == 3);
  assert(count_1_bits("abc") == 0);
  assert(count_1_bits("") == 0);
  return;
}


x86 assembly (clang, -O0):
<test_count_1_bits>:
push   %rbp
mov    %rsp,%rbp
lea    0xed5(%rip),%rdi
call   1030 <count_1_bits@plt>
cmp    $0x0,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1040 <assert@plt>
lea    0xebf(%rip),%rdi
call   1030 <count_1_bits@plt>
cmp    $0x1,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1040 <assert@plt>
lea    0xe9f(%rip),%rdi
call   1030 <count_1_bits@plt>
cmp    $0x3,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1040 <assert@plt>
lea    0xe89(%rip),%rdi
call   1030 <count_1_bits@plt>
cmp    $0x0,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1040 <assert@plt>
lea    0xe66(%rip),%rdi
call   1030 <count_1_bits@plt>
cmp    $0x0,%eax
sete   %al
and    $0x1,%al
movzbl %al,%edi
call   1040 <assert@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<test_count_1_bits>:
push   %rax
lea    0xed8(%rip),%rdi
call   1030 <count_1_bits@plt>
xor    %edi,%edi
test   %eax,%eax
sete   %dil
call   1040 <assert@plt>
lea    0xec5(%rip),%rdi
call   1030 <count_1_bits@plt>
xor    %edi,%edi
cmp    $0x1,%eax
sete   %dil
call   1040 <assert@plt>
lea    0xea7(%rip),%rdi
call   1030 <count_1_bits@plt>
xor    %edi,%edi
cmp    $0x3,%eax
sete   %dil
call   1040 <assert@plt>
lea    0xe93(%rip),%rdi
call   1030 <count_1_bits@plt>
xor    %edi,%edi
test   %eax,%eax
sete   %dil
call   1040 <assert@plt>
lea    0xe73(%rip),%rdi
call   1030 <count_1_bits@plt>
xor    %edi,%edi
test   %eax,%eax
sete   %dil
pop    %rax
jmp    1040 <assert@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"0\00"
@.str.1 = [2 x i8] c"1\00"
@.str.2 = [6 x i8] c"10101\00"
@.str.3 = [4 x i8] c"abc\00"
@.str.4 = [1 x i8] zeroinitializer
define void @test_count_1_bits() {
%1 = call i32 @count_1_bits(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%2 = icmp eq i32 %1, 0
%3 = zext i1 %2 to i32
%4 = call i32 @assert(i32 %3)
%5 = call i32 @count_1_bits(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%6 = icmp eq i32 %5, 1
%7 = zext i1 %6 to i32
%8 = call i32 @assert(i32 %7)
%9 = call i32 @count_1_bits(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%10 = icmp eq i32 %9, 3
%11 = zext i1 %10 to i32
%12 = call i32 @assert(i32 %11)
%13 = call i32 @count_1_bits(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
%14 = icmp eq i32 %13, 0
%15 = zext i1 %14 to i32
%16 = call i32 @assert(i32 %15)
%17 = call i32 @count_1_bits(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.4, i64 0, i64 0))
%18 = icmp eq i32 %17, 0
%19 = zext i1 %18 to i32
%20 = call i32 @assert(i32 %19)
ret void
}

LLVM IR (-O2):
@.str = [2 x i8] c"0\00"
@.str.1 = [2 x i8] c"1\00"
@.str.2 = [6 x i8] c"10101\00"
@.str.3 = [4 x i8] c"abc\00"
@.str.4 = [1 x i8] zeroinitializer
define void @test_count_1_bits() {
%1 = tail call i32 @count_1_bits(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%2 = icmp eq i32 %1, 0
%3 = zext i1 %2 to i32
%4 = tail call i32 @assert(i32 %3)
%5 = tail call i32 @count_1_bits(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%6 = icmp eq i32 %5, 1
%7 = zext i1 %6 to i32
%8 = tail call i32 @assert(i32 %7)
%9 = tail call i32 @count_1_bits(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%10 = icmp eq i32 %9, 3
%11 = zext i1 %10 to i32
%12 = tail call i32 @assert(i32 %11)
%13 = tail call i32 @count_1_bits(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
%14 = icmp eq i32 %13, 0
%15 = zext i1 %14 to i32
%16 = tail call i32 @assert(i32 %15)
%17 = tail call i32 @count_1_bits(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.4, i64 0, i64 0))
%18 = icmp eq i32 %17, 0
%19 = zext i1 %18 to i32
%20 = tail call i32 @assert(i32 %19)
ret void
}