#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 printf(char *, ...);
int main(int argc, char **argv) {
  for (int i = 0; i <= 5; ++i) {
    int x = printf("Hello World!\n") * 5;
    printf("print returned %d\n", x);
  }
  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,-0x14(%rbp)
cmpl   $0x5,-0x14(%rbp)
jg     116a <main+0x5a>
lea    0xec2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
imul   $0x5,%eax,%eax
mov    %eax,-0x18(%rbp)
mov    -0x18(%rbp),%esi
lea    0xeb9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    112d <main+0x1d>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
lea    0xee5(%rip),%r14
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    (%rax,%rax,4),%esi
lea    0xedf(%rip),%rbx
mov    %rbx,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    (%rax,%rax,4),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    (%rax,%rax,4),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    (%rax,%rax,4),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    (%rax,%rax,4),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    (%rax,%rax,4),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [14 x i8] c"Hello World!\0A\00"
@.str.1 = [19 x i8] c"print returned %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* %6
br label %8
8: ; preds = %16, %2
%9 = load i32, i32* %6
%10 = icmp sle i32 %9, 5
br i1 %10, label %11, label %19
11: ; preds = %8
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%13 = mul nsw i32 %12, 5
store i32 %13, i32* %7
%14 = load i32, i32* %7
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %14)
br label %16
16: ; preds = %11
%17 = load i32, i32* %6
%18 = add nsw i32 %17, 1
store i32 %18, i32* %6
br label %8
19: ; preds = %8
ret i32 0
}

LLVM IR (-O2):
@.str = [14 x i8] c"Hello World!\0A\00"
@.str.1 = [19 x i8] c"print returned %d\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%4 = mul nsw i32 %3, 5
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %4)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%7 = mul nsw i32 %6, 5
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %7)
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%10 = mul nsw i32 %9, 5
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %10)
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%13 = mul nsw i32 %12, 5
%14 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %13)
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%16 = mul nsw i32 %15, 5
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %16)
%18 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%19 = mul nsw i32 %18, 5
%20 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %19)
ret i32 0
}