#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 */
scalar_t__ ispower(int, int);
int /*<<< orphan*/ printf(char *, int);
int main(int argc, char *argv[]) {
  int i;
  int sum = 0;
  for (i = 2; i < 1000000; ++i) {
    if (ispower(i, 5)) {
      printf("%d\n", i);
      sum += i;
    }
  }
  printf("sum=%d\n", sum);
  return 0;
}


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,-0x18(%rbp)
movl   $0x2,-0x14(%rbp)
cmpl   $0xf4240,-0x14(%rbp)
jge    1193 <main+0x73>
mov    -0x14(%rbp),%edi
mov    $0x5,%esi
call   1040 <ispower@plt>
cmp    $0x0,%rax
je     1180 <main+0x60>
mov    -0x14(%rbp),%esi
lea    0xe92(%rip),%rdi
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    -0x18(%rbp),%eax
mov    %eax,-0x18(%rbp)
jmp    1185 <main+0x65>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1144 <main+0x24>
mov    -0x18(%rbp),%esi
lea    0xe63(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r14
push   %rbx
mov    $0x2,%ebp
xor    %ebx,%ebx
lea    0xed2(%rip),%r14
jmp    114b <main+0x2b>
cs nopw 0x0(%rax,%rax,1)
xchg   %ax,%ax
add    $0x1,%ebp
cmp    $0xf4240,%ebp
je     116a <main+0x4a>
mov    %ebp,%edi
mov    $0x5,%esi
call   1040 <ispower@plt>
test   %rax,%rax
je     1140 <main+0x20>
mov    %r14,%rdi
mov    %ebp,%esi
call   1030 <printf@plt>
add    %ebp,%ebx
jmp    1140 <main+0x20>
lea    0xe8f(%rip),%rdi
mov    %ebx,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
pop    %r14
pop    %rbp
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%d\0A\00"
@.str.1 = [8 x i8] c"sum=%d\0A\00"
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* %7
store i32 2, i32* %6
br label %8
8: ; preds = %22, %2
%9 = load i32, i32* %6
%10 = icmp slt i32 %9, 1000000
br i1 %10, label %11, label %25
11: ; preds = %8
%12 = load i32, i32* %6
%13 = call i64 @ispower(i32 %12, i32 5)
%14 = icmp ne i64 %13, 0
br i1 %14, label %15, label %21
15: ; preds = %11
%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)
%18 = load i32, i32* %6
%19 = load i32, i32* %7
%20 = add nsw i32 %19, %18
store i32 %20, i32* %7
br label %21
21: ; preds = %15, %11
br label %22
22: ; preds = %21
%23 = load i32, i32* %6
%24 = add nsw i32 %23, 1
store i32 %24, i32* %6
br label %8
25: ; preds = %8
%26 = load i32, i32* %7
%27 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i32 %26)
ret i32 0
}

LLVM IR (-O2):
@.str = [4 x i8] c"%d\0A\00"
@.str.1 = [8 x i8] c"sum=%d\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
br label %3
3: ; preds = %2, %11
%4 = phi i32 [ 0, %2 ], [ %12, %11 ]
%5 = phi i32 [ 2, %2 ], [ %13, %11 ]
%6 = tail call i64 @ispower(i32 %5, i32 5)
%7 = icmp eq i64 %6, 0
br i1 %7, label %11, label %8
8: ; preds = %3
%9 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %5)
%10 = add nsw i32 %4, %5
br label %11
11: ; preds = %3, %8
%12 = phi i32 [ %10, %8 ], [ %4, %3 ]
%13 = add nuw nsw i32 %5, 1
%14 = icmp eq i32 %13, 1000000
br i1 %14, label %15, label %3
15: ; preds = %11
%16 = tail call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i32 %12)
ret i32 0
}