#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 print_arr(int arr[], size_t arr_len) {
  printf("arr = [ ");
  if (arr_len > 0)
    printf("%d", arr[0]);
  size_t i;
  for (i = 1; i < arr_len; i++)
    printf(", %d", arr[i]);
  printf(" ];");
}


x86 assembly (clang, -O0):
<print_arr>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cmpq   $0x0,-0x10(%rbp)
jbe    114d <print_arr+0x3d>
mov    -0x8(%rbp),%rax
mov    (%rax),%esi
lea    0xec5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movq   $0x1,-0x18(%rbp)
mov    -0x18(%rbp),%rax
cmp    -0x10(%rbp),%rax
jae    118d <print_arr+0x7d>
mov    -0x8(%rbp),%rax
mov    -0x18(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe94(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%rax
add    $0x1,%rax
mov    %rax,-0x18(%rbp)
jmp    1155 <print_arr+0x45>
lea    0xe7a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_arr>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rsi,%r12
mov    %rdi,%r14
lea    0xedb(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
test   %r12,%r12
je     1177 <print_arr+0x67>
mov    (%r14),%esi
lea    0xed0(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
cmp    $0x1,%r12
je     1177 <print_arr+0x67>
mov    $0x1,%ebx
lea    0xeb5(%rip),%r15
cs nopw 0x0(%rax,%rax,1)
xchg   %ax,%ax
mov    (%r14,%rbx,4),%esi
mov    %r15,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1160 <print_arr+0x50>
lea    0xe90(%rip),%rdi
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
jmp    1030 <printf@plt>

LLVM IR (-O0):
@.str = [9 x i8] c"arr = [ \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [5 x i8] c", %d\00"
@.str.3 = [4 x i8] c" ];\00"
define void @print_arr(i32* %0, i64 %1) {
%3 = alloca i32*
%4 = alloca i64
%5 = alloca i64
store i32* %0, i32** %3
store i64 %1, i64* %4
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
%7 = load i64, i64* %4
%8 = icmp ugt i64 %7, 0
br i1 %8, label %9, label %14
9: ; preds = %2
%10 = load i32*, i32** %3
%11 = getelementptr inbounds i32, i32* %10, i64 0
%12 = load i32, i32* %11
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %12)
br label %14
14: ; preds = %9, %2
store i64 1, i64* %5
br label %15
15: ; preds = %25, %14
%16 = load i64, i64* %5
%17 = load i64, i64* %4
%18 = icmp ult i64 %16, %17
br i1 %18, label %19, label %28
19: ; preds = %15
%20 = load i32*, i32** %3
%21 = load i64, i64* %5
%22 = getelementptr inbounds i32, i32* %20, i64 %21
%23 = load i32, i32* %22
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i32 %23)
br label %25
25: ; preds = %19
%26 = load i64, i64* %5
%27 = add i64 %26, 1
store i64 %27, i64* %5
br label %15
28: ; preds = %15
%29 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
ret void
}

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