#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 *get_arr();
int /*<<< orphan*/ printf(char *, ...);
void print_arr(const char *descrip) {
  int *arr = get_arr();
  int i;
  printf("%s", descrip);
  for (i = 0; i < 50000; ++i)
    printf("%d\t", arr[i]);
  printf("\n");
}


x86 assembly (clang, -O0):
<print_arr>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    $0x0,%al
call   1030 <get_arr@plt>
mov    %rax,-0x10(%rbp)
mov    -0x8(%rbp),%rsi
lea    0xebe(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movl   $0x0,-0x14(%rbp)
cmpl   $0xc350,-0x14(%rbp)
jge    1184 <print_arr+0x64>
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe94(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1150 <print_arr+0x30>
lea    0xe7c(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_arr>:
push   %r15
push   %r14
push   %rbx
mov    %rdi,%r14
xor    %eax,%eax
call   1040 <get_arr@plt>
mov    %rax,%r15
lea    0xeb7(%rip),%rdi
mov    %r14,%rsi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xea9(%rip),%r14
xor    %ebx,%ebx
nopl   0x0(%rax)
mov    (%r15,%rbx,4),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
add    $0x1,%rbx
cmp    $0xc350,%rbx
jne    1160 <print_arr+0x30>
mov    $0xa,%edi
pop    %rbx
pop    %r14
pop    %r15
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [3 x i8] c"%s\00"
@.str.1 = [4 x i8] c"%d\09\00"
@.str.2 = [2 x i8] c"\0A\00"
define void @print_arr(i8* %0) {
%2 = alloca i8*
%3 = alloca i32*
%4 = alloca i32
store i8* %0, i8** %2
%5 = call i32* (...) @get_arr()
store i32* %5, i32** %3
%6 = load i8*, i8** %2
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %6)
store i32 0, i32* %4
br label %8
8: ; preds = %18, %1
%9 = load i32, i32* %4
%10 = icmp slt i32 %9, 50000
br i1 %10, label %11, label %21
11: ; preds = %8
%12 = load i32*, i32** %3
%13 = load i32, i32* %4
%14 = sext i32 %13 to i64
%15 = getelementptr inbounds i32, i32* %12, i64 %14
%16 = load i32, i32* %15
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %16)
br label %18
18: ; preds = %11
%19 = load i32, i32* %4
%20 = add nsw i32 %19, 1
store i32 %20, i32* %4
br label %8
21: ; preds = %8
%22 = 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 = [3 x i8] c"%s\00"
@.str.1 = [4 x i8] c"%d\09\00"
define void @print_arr(i8* %0) {
%2 = tail call i32* (...) @get_arr()
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %0)
br label %4
4: ; preds = %1, %4
%5 = phi i64 [ 0, %1 ], [ %9, %4 ]
%6 = getelementptr inbounds i32, i32* %2, i64 %5
%7 = load i32, i32* %6
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %7)
%9 = add nuw nsw i64 %5, 1
%10 = icmp eq i64 %9, 50000
br i1 %10, label %11, label %4
11: ; preds = %4
%12 = tail call i32 @putchar(i32 10)
ret void
}