#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*/ change_int_array(int *, int);
int /*<<< orphan*/ printf(char *, int, int);
int main() {
  int a[10];
  int *ap = (int *)&a;
  change_int_array(ap, 10);
  for (int i = 0; i < 10; i++) {
    printf("a[%d]: %d\n", i, a[i]);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x30(%rbp),%rax
mov    %rax,-0x38(%rbp)
mov    -0x38(%rbp),%rdi
mov    $0xa,%esi
call   1040 <change_int_array@plt>
movl   $0x0,-0x3c(%rbp)
cmpl   $0xa,-0x3c(%rbp)
jge    117b <main+0x5b>
mov    -0x3c(%rbp),%esi
movslq -0x3c(%rbp),%rax
mov    -0x30(%rbp,%rax,4),%edx
lea    0xe98(%rip),%rdi
call   1030 <printf@plt>
mov    -0x3c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x3c(%rbp)
jmp    114c <main+0x2c>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x30,%rsp
mov    %rsp,%rdi
mov    $0xa,%esi
call   1040 <change_int_array@plt>
mov    (%rsp),%edx
lea    0xec4(%rip),%rbx
mov    %rbx,%rdi
xor    %esi,%esi
call   1030 <printf@plt>
mov    0x4(%rsp),%edx
mov    %rbx,%rdi
mov    $0x1,%esi
call   1030 <printf@plt>
mov    0x8(%rsp),%edx
mov    %rbx,%rdi
mov    $0x2,%esi
call   1030 <printf@plt>
mov    0xc(%rsp),%edx
mov    %rbx,%rdi
mov    $0x3,%esi
call   1030 <printf@plt>
mov    0x10(%rsp),%edx
mov    %rbx,%rdi
mov    $0x4,%esi
call   1030 <printf@plt>
mov    0x14(%rsp),%edx
mov    %rbx,%rdi
mov    $0x5,%esi
call   1030 <printf@plt>
mov    0x18(%rsp),%edx
mov    %rbx,%rdi
mov    $0x6,%esi
call   1030 <printf@plt>
mov    0x1c(%rsp),%edx
mov    %rbx,%rdi
mov    $0x7,%esi
call   1030 <printf@plt>
mov    0x20(%rsp),%edx
mov    %rbx,%rdi
mov    $0x8,%esi
call   1030 <printf@plt>
mov    0x24(%rsp),%edx
mov    %rbx,%rdi
mov    $0x9,%esi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [11 x i8] c"a[%d]: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [10 x i32]
%3 = alloca i32*
%4 = alloca i32
store i32 0, i32* %1
%5 = bitcast [10 x i32]* %2 to i32*
store i32* %5, i32** %3
%6 = load i32*, i32** %3
%7 = call i32 @change_int_array(i32* %6, i32 10)
store i32 0, i32* %4
br label %8
8: ; preds = %18, %0
%9 = load i32, i32* %4
%10 = icmp slt i32 %9, 10
br i1 %10, label %11, label %21
11: ; preds = %8
%12 = load i32, i32* %4
%13 = load i32, i32* %4
%14 = sext i32 %13 to i64
%15 = getelementptr inbounds [10 x i32], [10 x i32]* %2, i64 0, i64 %14
%16 = load i32, i32* %15
%17 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 %12, 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
ret i32 0
}

LLVM IR (-O2):
@.str = [11 x i8] c"a[%d]: %d\0A\00"
define i32 @main() {
%1 = alloca [10 x i32]
%2 = bitcast [10 x i32]* %1 to i8*
%3 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 0
%4 = call i32 @change_int_array(i32* %3, i32 10)
%5 = load i32, i32* %3
%6 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 0, i32 %5)
%7 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 1
%8 = load i32, i32* %7
%9 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 1, i32 %8)
%10 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 2
%11 = load i32, i32* %10
%12 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 2, i32 %11)
%13 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 3
%14 = load i32, i32* %13
%15 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 3, i32 %14)
%16 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 4
%17 = load i32, i32* %16
%18 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 4, i32 %17)
%19 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 5
%20 = load i32, i32* %19
%21 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 5, i32 %20)
%22 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 6
%23 = load i32, i32* %22
%24 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 6, i32 %23)
%25 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 7
%26 = load i32, i32* %25
%27 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 7, i32 %26)
%28 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 8
%29 = load i32, i32* %28
%30 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 8, i32 %29)
%31 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 9
%32 = load i32, i32* %31
%33 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0), i32 9, i32 %32)
ret i32 0
}