#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_array(int *U, int n) {
  int i;
  printf("[");
  for (i = 0; i < n; i++) {
    if (i == n - 1)
      printf("%d", U[i]);
    else
      printf("%d, ", U[i]);
  }
  printf("]\n");
}


x86 assembly (clang, -O0):
<print_array>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
lea    0xeda(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    119b <print_array+0x8b>
mov    -0x10(%rbp),%eax
mov    -0xc(%rbp),%ecx
sub    $0x1,%ecx
cmp    %ecx,%eax
jne    116f <print_array+0x5f>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe9f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1188 <print_array+0x78>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe84(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    118d <print_array+0x7d>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1134 <print_array+0x24>
lea    0xe68(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_array>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
push   %rax
mov    %esi,%r14d
mov    %rdi,%r15
mov    $0x5b,%edi
call   1030 <putchar@plt>
test   %r14d,%r14d
jle    118e <print_array+0x5e>
lea    -0x1(%r14),%r12d
mov    %r14d,%ebx
lea    0xea2(%rip),%r14
lea    0xe9e(%rip),%r13
xor    %ebp,%ebp
nopw   0x0(%rax,%rax,1)
cmp    %rbp,%r12
mov    %r13,%rdi
cmove  %r14,%rdi
mov    (%r15,%rbp,4),%esi
xor    %eax,%eax
call   1050 <printf@plt>
add    $0x1,%rbp
cmp    %rbp,%rbx
jne    1170 <print_array+0x40>
lea    0xe73(%rip),%rdi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
jmp    1040 <puts@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"[\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [5 x i8] c"%d, \00"
@.str.3 = [3 x i8] c"]\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 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32 0, i32* %5
br label %7
7: ; preds = %31, %2
%8 = load i32, i32* %5
%9 = load i32, i32* %4
%10 = icmp slt i32 %8, %9
br i1 %10, label %11, label %34
11: ; preds = %7
%12 = load i32, i32* %5
%13 = load i32, i32* %4
%14 = sub nsw i32 %13, 1
%15 = icmp eq i32 %12, %14
br i1 %15, label %16, label %23
16: ; preds = %11
%17 = load i32*, i32** %3
%18 = load i32, i32* %5
%19 = sext i32 %18 to i64
%20 = getelementptr inbounds i32, i32* %17, i64 %19
%21 = load i32, i32* %20
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %21)
br label %30
23: ; preds = %11
%24 = load i32*, i32** %3
%25 = load i32, i32* %5
%26 = sext i32 %25 to i64
%27 = getelementptr inbounds i32, i32* %24, i64 %26
%28 = load i32, i32* %27
%29 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i32 %28)
br label %30
30: ; preds = %23, %16
br label %31
31: ; preds = %30
%32 = load i32, i32* %5
%33 = add nsw i32 %32, 1
store i32 %33, i32* %5
br label %7
34: ; preds = %7
%35 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [5 x i8] c"%d, \00"
@str = [2 x i8] c"]\00"
define void @print_array(i32* nocapture %0, i32 %1) {
%3 = tail call i32 @putchar(i32 91)
%4 = icmp sgt i32 %1, 0
br i1 %4, label %5, label %18
5: ; preds = %2
%6 = add nsw i32 %1, -1
%7 = zext i32 %6 to i64
%8 = zext i32 %1 to i64
br label %9
9: ; preds = %5, %9
%10 = phi i64 [ 0, %5 ], [ %16, %9 ]
%11 = icmp eq i64 %10, %7
%12 = getelementptr inbounds i32, i32* %0, i64 %10
%13 = select i1 %11, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0)
%14 = load i32, i32* %12
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) %13, i32 %14)
%16 = add nuw nsw i64 %10, 1
%17 = icmp eq i64 %16, %8
br i1 %17, label %18, label %9
18: ; preds = %9, %2
%19 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([2 x i8], [2 x i8]* @str, i64 0, i64 0))
ret void
}