#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 *malloc(int);
int rand();
int /*<<< orphan*/ srand(int /*<<< orphan*/);
int /*<<< orphan*/ time(int /*<<< orphan*/ *);
int *generate_array(int size, int max) {
  int *array;
  int i;
  srand(time(NULL));
  array = malloc(sizeof(int) * size);
  for (i = 0; i < size; i++)
    array[i] = rand() % max;
  return array;
}


x86 assembly (clang, -O0):
<generate_array>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x4(%rbp)
mov    %esi,-0x8(%rbp)
xor    %eax,%eax
mov    %eax,%edi
call   1040 <time@plt>
mov    %eax,%edi
call   1030 <srand@plt>
movslq -0x4(%rbp),%rax
shl    $0x2,%rax
mov    %eax,%edi
call   1050 <malloc@plt>
mov    %rax,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x4(%rbp),%eax
jge    11a8 <generate_array+0x68>
mov    $0x0,%al
call   1060 <rand@plt>
cltd
idivl  -0x8(%rbp)
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
mov    %edx,(%rax,%rcx,4)
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1178 <generate_array+0x38>
mov    -0x10(%rbp),%rax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<generate_array>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
mov    %esi,%r15d
mov    %edi,%r14d
xor    %edi,%edi
call   1040 <time@plt>
mov    %eax,%edi
call   1030 <srand@plt>
lea    0x0(,%r14,4),%edi
call   1050 <malloc@plt>
mov    %rax,%r12
test   %r14d,%r14d
jle    1198 <generate_array+0x58>
mov    %r14d,%ebp
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
xor    %eax,%eax
call   1060 <rand@plt>
cltd
idiv   %r15d
mov    %edx,(%r12,%rbx,4)
add    $0x1,%rbx
cmp    %rbx,%rbp
jne    1180 <generate_array+0x40>
mov    %r12,%rax
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
define i32* @generate_array(i32 %0, i32 %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32*
%6 = alloca i32
store i32 %0, i32* %3
store i32 %1, i32* %4
%7 = call i32 @time(i32* null)
%8 = call i32 @srand(i32 %7)
%9 = load i32, i32* %3
%10 = sext i32 %9 to i64
%11 = mul i64 4, %10
%12 = trunc i64 %11 to i32
%13 = call i32* @malloc(i32 %12)
store i32* %13, i32** %5
store i32 0, i32* %6
br label %14
14: ; preds = %26, %2
%15 = load i32, i32* %6
%16 = load i32, i32* %3
%17 = icmp slt i32 %15, %16
br i1 %17, label %18, label %29
18: ; preds = %14
%19 = call i32 (...) @rand()
%20 = load i32, i32* %4
%21 = srem i32 %19, %20
%22 = load i32*, i32** %5
%23 = load i32, i32* %6
%24 = sext i32 %23 to i64
%25 = getelementptr inbounds i32, i32* %22, i64 %24
store i32 %21, i32* %25
br label %26
26: ; preds = %18
%27 = load i32, i32* %6
%28 = add nsw i32 %27, 1
store i32 %28, i32* %6
br label %14
29: ; preds = %14
%30 = load i32*, i32** %5
ret i32* %30
}

LLVM IR (-O2):
define noalias i32* @generate_array(i32 %0, i32 %1) {
%3 = tail call i32 @time(i32* null)
%4 = tail call i32 @srand(i32 %3)
%5 = shl i32 %0, 2
%6 = tail call i32* @malloc(i32 %5)
%7 = icmp sgt i32 %0, 0
br i1 %7, label %8, label %17
8: ; preds = %2
%9 = zext i32 %0 to i64
br label %10
10: ; preds = %8, %10
%11 = phi i64 [ 0, %8 ], [ %15, %10 ]
%12 = tail call i32 (...) @rand()
%13 = srem i32 %12, %1
%14 = getelementptr inbounds i32, i32* %6, i64 %11
store i32 %13, i32* %14
%15 = add nuw nsw i64 %11, 1
%16 = icmp eq i64 %15, %9
br i1 %16, label %17, label %10
17: ; preds = %10, %2
ret i32* %6
}