#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 *, ...);
void frag_three() {
  printf("for (i = 0; i < N; a[++i] = i);\n");
  int a[] = {23, 42, 12, 44, 55, 76};
  int i;
  for (i = 0; i < 6; a[++i] = i)
    ;
  for (i = 0; i < 6; ++i)
    printf("%d", a[i]);
  printf("\n");
}


x86 assembly (clang, -O0):
<frag_three>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
lea    0xee1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    0xf03(%rip),%rax
mov    %rax,-0x20(%rbp)
mov    0xf00(%rip),%rax
mov    %rax,-0x18(%rbp)
mov    0xefd(%rip),%rax
mov    %rax,-0x10(%rbp)
movl   $0x0,-0x24(%rbp)
cmpl   $0x6,-0x24(%rbp)
jge    1174 <frag_three+0x64>
jmp    115d <frag_three+0x4d>
mov    -0x24(%rbp),%ecx
mov    -0x24(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x24(%rbp)
cltq
mov    %ecx,-0x20(%rbp,%rax,4)
jmp    114e <frag_three+0x3e>
movl   $0x0,-0x24(%rbp)
cmpl   $0x6,-0x24(%rbp)
jge    11a9 <frag_three+0x99>
movslq -0x24(%rbp),%rax
mov    -0x20(%rbp,%rax,4),%esi
lea    0xe8d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x24(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x24(%rbp)
jmp    117b <frag_three+0x6b>
lea    0xe6f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<frag_three>:
push   %rbx
lea    0xecb(%rip),%rdi
call   1040 <puts@plt>
lea    0xebc(%rip),%rbx
mov    %rbx,%rdi
mov    $0x17,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
xor    %esi,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x1,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x3,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    %rbx,%rdi
mov    $0x4,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    $0xa,%edi
pop    %rbx
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [33 x i8] c"for (i = 0; i < N; a[++i] = i);\0A\00"
@__const.frag_three.a = [6 x i32] [i32 23, i32 42, i32 12, i32 44, i32 55, i32 76]
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [2 x i8] c"\0A\00"
define void @frag_three() {
%1 = alloca [6 x i32]
%2 = alloca i32
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str, i64 0, i64 0))
%4 = bitcast [6 x i32]* %1 to i8*
store i32 0, i32* %2
br label %5
5: ; preds = %9, %0
%6 = load i32, i32* %2
%7 = icmp slt i32 %6, 6
br i1 %7, label %8, label %15
8: ; preds = %5
br label %9
9: ; preds = %8
%10 = load i32, i32* %2
%11 = load i32, i32* %2
%12 = add nsw i32 %11, 1
store i32 %12, i32* %2
%13 = sext i32 %12 to i64
%14 = getelementptr inbounds [6 x i32], [6 x i32]* %1, i64 0, i64 %13
store i32 %10, i32* %14
br label %5
15: ; preds = %5
store i32 0, i32* %2
br label %16
16: ; preds = %25, %15
%17 = load i32, i32* %2
%18 = icmp slt i32 %17, 6
br i1 %18, label %19, label %28
19: ; preds = %16
%20 = load i32, i32* %2
%21 = sext i32 %20 to i64
%22 = getelementptr inbounds [6 x i32], [6 x i32]* %1, i64 0, i64 %21
%23 = load i32, i32* %22
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %23)
br label %25
25: ; preds = %19
%26 = load i32, i32* %2
%27 = add nsw i32 %26, 1
store i32 %27, i32* %2
br label %16
28: ; preds = %16
%29 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%d\00"
@str = [32 x i8] c"for (i = 0; i < N; a[++i] = i);\00"
define void @frag_three() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 23)
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 0)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 1)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 2)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 3)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 4)
%8 = tail call i32 @putchar(i32 10)
ret void
}