#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);
void print_array(int *arr, int len) {
  int i;
  if (len == 0)
    return;
  for (i = 0; i < len - 1; i++)
    printf("%d ", arr[i]);
  printf("%d\n", arr[len - 1]);
}


x86 assembly (clang, -O0):
<print_array>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
cmpl   $0x0,-0xc(%rbp)
jne    112e <print_array+0x1e>
jmp    1187 <print_array+0x77>
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
mov    -0xc(%rbp),%ecx
sub    $0x1,%ecx
cmp    %ecx,%eax
jge    116b <print_array+0x5b>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xea8(%rip),%rdi
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1135 <print_array+0x25>
mov    -0x8(%rbp),%rax
mov    -0xc(%rbp),%ecx
sub    $0x1,%ecx
movslq %ecx,%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe82(%rip),%rdi
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_array>:
test   %esi,%esi
je     1170 <print_array+0x60>
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
mov    %rdi,%r12
lea    -0x1(%rsi),%r15d
cmp    $0x2,%esi
jl     1155 <print_array+0x45>
mov    %r15d,%ebp
xor    %ebx,%ebx
lea    0xecc(%rip),%r14
cs nopw 0x0(%rax,%rax,1)
xchg   %ax,%ax
mov    (%r12,%rbx,4),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%rbp
jne    1140 <print_array+0x30>
movslq %r15d,%rax
mov    (%r12,%rax,4),%esi
lea    0xea1(%rip),%rdi
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1030 <printf@plt>
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%d \00"
@.str.1 = [4 x i8] c"%d\0A\00"
define void @print_array(i32* %0, i32 %1) {
%3 = alloca i32*
%4 = alloca i32
%5 = alloca i32
store i32* %0, i32** %3
store i32 %1, i32* %4
%6 = load i32, i32* %4
%7 = icmp eq i32 %6, 0
br i1 %7, label %8, label %9
8: ; preds = %2
br label %33
9: ; preds = %2
store i32 0, i32* %5
br label %10
10: ; preds = %22, %9
%11 = load i32, i32* %5
%12 = load i32, i32* %4
%13 = sub nsw i32 %12, 1
%14 = icmp slt i32 %11, %13
br i1 %14, label %15, label %25
15: ; preds = %10
%16 = load i32*, i32** %3
%17 = load i32, i32* %5
%18 = sext i32 %17 to i64
%19 = getelementptr inbounds i32, i32* %16, i64 %18
%20 = load i32, i32* %19
%21 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %20)
br label %22
22: ; preds = %15
%23 = load i32, i32* %5
%24 = add nsw i32 %23, 1
store i32 %24, i32* %5
br label %10
25: ; preds = %10
%26 = load i32*, i32** %3
%27 = load i32, i32* %4
%28 = sub nsw i32 %27, 1
%29 = sext i32 %28 to i64
%30 = getelementptr inbounds i32, i32* %26, i64 %29
%31 = load i32, i32* %30
%32 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %31)
br label %33
33: ; preds = %25, %8
ret void
}

LLVM IR (-O2):
@.str = [4 x i8] c"%d \00"
@.str.1 = [4 x i8] c"%d\0A\00"
define void @print_array(i32* nocapture %0, i32 %1) {
%3 = icmp eq i32 %1, 0
br i1 %3, label %21, label %4
4: ; preds = %2
%5 = add i32 %1, -1
%6 = icmp sgt i32 %1, 1
br i1 %6, label %7, label %16
7: ; preds = %4
%8 = zext i32 %5 to i64
br label %9
9: ; preds = %7, %9
%10 = phi i64 [ 0, %7 ], [ %14, %9 ]
%11 = getelementptr inbounds i32, i32* %0, i64 %10
%12 = load i32, i32* %11
%13 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %12)
%14 = add nuw nsw i64 %10, 1
%15 = icmp eq i64 %14, %8
br i1 %15, label %16, label %9
16: ; preds = %9, %4
%17 = sext i32 %5 to i64
%18 = getelementptr inbounds i32, i32* %0, i64 %17
%19 = load i32, i32* %18
%20 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %19)
br label %21
21: ; preds = %2, %16
ret void
}