#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, int);
int problem1(void) {
  int i, sum = 0;
  for (i = 1; i < 1000; i++)
    if (i % 3 == 0 || i % 5 == 0)
      sum += i;
  printf("The sum of all multiples of 3 or 5 below %d is %d\n", 1000, sum);
  return 0;
}


x86 assembly (clang, -O0):
<problem1>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x8(%rbp)
movl   $0x1,-0x4(%rbp)
cmpl   $0x3e8,-0x4(%rbp)
jge    1177 <problem1+0x67>
mov    -0x4(%rbp),%eax
mov    $0x3,%ecx
cltd
idiv   %ecx
cmp    $0x0,%edx
je     115b <problem1+0x4b>
mov    -0x4(%rbp),%eax
mov    $0x5,%ecx
cltd
idiv   %ecx
cmp    $0x0,%edx
jne    1164 <problem1+0x54>
mov    -0x4(%rbp),%eax
add    -0x8(%rbp),%eax
mov    %eax,-0x8(%rbp)
jmp    1169 <problem1+0x59>
mov    -0x4(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x4(%rbp)
jmp    1126 <problem1+0x16>
mov    -0x8(%rbp),%edx
lea    0xe7f(%rip),%rdi
mov    $0x3e8,%esi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<problem1>:
push   %rax
movdqa 0xee6(%rip),%xmm8
movdqa 0xeee(%rip),%xmm1
pxor   %xmm2,%xmm2
mov    $0x3e0,%eax
movdqa 0xf0c(%rip),%xmm15
movdqa 0xf13(%rip),%xmm10
movdqa 0xf1a(%rip),%xmm11
movdqa 0xf22(%rip),%xmm3
movdqa 0xf29(%rip),%xmm12
movdqa 0xf30(%rip),%xmm13
movdqa 0xf37(%rip),%xmm14
pxor   %xmm6,%xmm6
pxor   %xmm4,%xmm4
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
movdqa %xmm8,%xmm0
pmullw 0xea3(%rip),%xmm0
movdqa %xmm0,%xmm5
psubusw %xmm15,%xmm5
pcmpeqw %xmm2,%xmm5
movdqa %xmm8,%xmm7
pmullw %xmm11,%xmm7
movdqa %xmm7,%xmm9
psubusw %xmm3,%xmm9
pcmpeqw %xmm2,%xmm9
por    %xmm5,%xmm9
paddw  %xmm10,%xmm0
psubusw %xmm15,%xmm0
pcmpeqw %xmm2,%xmm0
paddw  %xmm12,%xmm7
psubusw %xmm3,%xmm7
pcmpeqw %xmm2,%xmm7
por    %xmm0,%xmm7
movdqa %xmm1,%xmm0
paddd  0xe3d(%rip),%xmm0
punpcklwd %xmm7,%xmm5
psrad  $0x10,%xmm5
pand   %xmm0,%xmm5
paddd  %xmm5,%xmm4
punpcklwd %xmm9,%xmm0
psrad  $0x10,%xmm0
pand   %xmm1,%xmm0
paddd  %xmm0,%xmm6
paddd  %xmm13,%xmm1
paddw  %xmm14,%xmm8
add    $0xfffffff8,%eax
jne    1180 <problem1+0x70>
paddd  %xmm6,%xmm4
pshufd $0xee,%xmm4,%xmm0
paddd  %xmm4,%xmm0
pshufd $0x55,%xmm0,%xmm1
paddd  %xmm0,%xmm1
movd   %xmm1,%edx
add    $0xf8f,%edx
lea    0xe70(%rip),%rdi
mov    $0x3e8,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [51 x i8] c"The sum of all multiples of 3 or 5 below %d is %d\0A\00"
define i32 @problem1() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %2
store i32 1, i32* %1
br label %3
3: ; preds = %19, %0
%4 = load i32, i32* %1
%5 = icmp slt i32 %4, 1000
br i1 %5, label %6, label %22
6: ; preds = %3
%7 = load i32, i32* %1
%8 = srem i32 %7, 3
%9 = icmp eq i32 %8, 0
br i1 %9, label %14, label %10
10: ; preds = %6
%11 = load i32, i32* %1
%12 = srem i32 %11, 5
%13 = icmp eq i32 %12, 0
br i1 %13, label %14, label %18
14: ; preds = %10, %6
%15 = load i32, i32* %1
%16 = load i32, i32* %2
%17 = add nsw i32 %16, %15
store i32 %17, i32* %2
br label %18
18: ; preds = %14, %10
br label %19
19: ; preds = %18
%20 = load i32, i32* %1
%21 = add nsw i32 %20, 1
store i32 %21, i32* %1
br label %3
22: ; preds = %3
%23 = load i32, i32* %2
%24 = call i32 @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str, i64 0, i64 0), i32 1000, i32 %23)
ret i32 0
}

LLVM IR (-O2):
@.str = [51 x i8] c"The sum of all multiples of 3 or 5 below %d is %d\0A\00"
define i32 @problem1() {
br label %1
1: ; preds = %1, %0
%2 = phi i32 [ 0, %0 ], [ %23, %1 ]
%3 = phi <4 x i32> [ zeroinitializer, %0 ], [ %21, %1 ]
%4 = phi <4 x i32> [ zeroinitializer, %0 ], [ %22, %1 ]
%5 = phi <4 x i32> [ <i32 1, i32 2, i32 3, i32 4>, %0 ], [ %24, %1 ]
%6 = phi <4 x i16> [ <i16 1, i16 2, i16 3, i16 4>, %0 ], [ %25, %1 ]
%7 = add <4 x i32> %5, <i32 4, i32 4, i32 4, i32 4>
%8 = add <4 x i16> %6, <i16 4, i16 4, i16 4, i16 4>
%9 = urem <4 x i16> %6, <i16 3, i16 3, i16 3, i16 3>
%10 = urem <4 x i16> %8, <i16 3, i16 3, i16 3, i16 3>
%11 = icmp eq <4 x i16> %9, zeroinitializer
%12 = icmp eq <4 x i16> %10, zeroinitializer
%13 = urem <4 x i16> %6, <i16 5, i16 5, i16 5, i16 5>
%14 = urem <4 x i16> %8, <i16 5, i16 5, i16 5, i16 5>
%15 = icmp eq <4 x i16> %13, zeroinitializer
%16 = icmp eq <4 x i16> %14, zeroinitializer
%17 = or <4 x i1> %11, %15
%18 = or <4 x i1> %12, %16
%19 = select <4 x i1> %17, <4 x i32> %5, <4 x i32> zeroinitializer
%20 = select <4 x i1> %18, <4 x i32> %7, <4 x i32> zeroinitializer
%21 = add <4 x i32> %19, %3
%22 = add <4 x i32> %20, %4
%23 = add nuw i32 %2, 8
%24 = add <4 x i32> %5, <i32 8, i32 8, i32 8, i32 8>
%25 = add <4 x i16> %6, <i16 8, i16 8, i16 8, i16 8>
%26 = icmp eq i32 %23, 992
br i1 %26, label %27, label %1
27: ; preds = %1
%28 = add <4 x i32> %22, %21
%29 = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %28)
%30 = add nuw nsw i32 %29, 3983
%31 = tail call i32 @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str, i64 0, i64 0), i32 1000, i32 %30)
ret i32 0
}