#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, int);
int /*<<< orphan*/ reverse_array(int *, int);
int main() {
  int x[5];
  int i = 0;
  for (i = 0; i < 5; i++)
    x[i] = i + 1;
  reverse_array(x, 5);
  for (i = 0; i < 5; i++)
    printf("x[%d]=%d\n", i, x[i]);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x24(%rbp)
movl   $0x0,-0x24(%rbp)
cmpl   $0x5,-0x24(%rbp)
jge    1163 <main+0x43>
mov    -0x24(%rbp),%ecx
add    $0x1,%ecx
movslq -0x24(%rbp),%rax
mov    %ecx,-0x20(%rbp,%rax,4)
mov    -0x24(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x24(%rbp)
jmp    113d <main+0x1d>
lea    -0x20(%rbp),%rdi
mov    $0x5,%esi
call   1040 <reverse_array@plt>
movl   $0x0,-0x24(%rbp)
cmpl   $0x5,-0x24(%rbp)
jge    11a7 <main+0x87>
mov    -0x24(%rbp),%esi
movslq -0x24(%rbp),%rax
mov    -0x20(%rbp,%rax,4),%edx
lea    0xe6c(%rip),%rdi
call   1030 <printf@plt>
mov    -0x24(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x24(%rbp)
jmp    1178 <main+0x58>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x20,%rsp
movaps 0xed4(%rip),%xmm0
movaps %xmm0,(%rsp)
movl   $0x5,0x10(%rsp)
mov    %rsp,%rdi
mov    $0x5,%esi
call   1040 <reverse_array@plt>
mov    (%rsp),%edx
lea    0xec1(%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>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbx
ret

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

LLVM IR (-O2):
@.str = [10 x i8] c"x[%d]=%d\0A\00"
define i32 @main() {
%1 = alloca [5 x i32]
%2 = bitcast [5 x i32]* %1 to i8*
%3 = getelementptr inbounds [5 x i32], [5 x i32]* %1, i64 0, i64 0
%4 = getelementptr inbounds [5 x i32], [5 x i32]* %1, i64 0, i64 1
%5 = getelementptr inbounds [5 x i32], [5 x i32]* %1, i64 0, i64 2
%6 = getelementptr inbounds [5 x i32], [5 x i32]* %1, i64 0, i64 3
%7 = bitcast [5 x i32]* %1 to <4 x i32>*
store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, <4 x i32>* %7
%8 = getelementptr inbounds [5 x i32], [5 x i32]* %1, i64 0, i64 4
store i32 5, i32* %8
%9 = call i32 @reverse_array(i32* %3, i32 5)
%10 = load i32, i32* %3
%11 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), i32 0, i32 %10)
%12 = load i32, i32* %4
%13 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), i32 1, i32 %12)
%14 = load i32, i32* %5
%15 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), i32 2, i32 %14)
%16 = load i32, i32* %6
%17 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), i32 3, i32 %16)
%18 = load i32, i32* %8
%19 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), i32 4, i32 %18)
ret i32 0
}