#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 /*<<< orphan*/ scanf(char *, int *);
int /*<<< orphan*/ system(char *);
int main() {
  int x, num[10];
  for (x = 0; x < 10; x++) {
    printf("Inserire il numero dell'array ");
    scanf("%d", &num[x]);
  }
  for (x = 9; x >= 0; x--) {
    if (num[x] != 0) {
      printf("\nIl numero dell'array e' %d\n", num[x]);
    }
  }
  system("PAUSE");
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
cmpl   $0xa,-0x8(%rbp)
jge    1187 <main+0x57>
lea    0xea9(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
movslq -0x8(%rbp),%rax
lea    -0x30(%rbp),%rsi
shl    $0x2,%rax
add    %rax,%rsi
lea    0xeab(%rip),%rdi
call   1050 <scanf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1146 <main+0x16>
movl   $0x9,-0x8(%rbp)
cmpl   $0x0,-0x8(%rbp)
jl     11d0 <main+0xa0>
movslq -0x8(%rbp),%rax
cmpl   $0x0,-0x30(%rbp,%rax,4)
je     11bd <main+0x8d>
movslq -0x8(%rbp),%rax
mov    -0x30(%rbp,%rax,4),%esi
lea    0xe6c(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
jmp    11c2 <main+0x92>
mov    -0x8(%rbp),%eax
add    $0xffffffff,%eax
mov    %eax,-0x8(%rbp)
jmp    118e <main+0x5e>
lea    0xe68(%rip),%rdi
call   1030 <system@plt>
mov    -0x4(%rbp),%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
sub    $0x28,%rsp
lea    0xec2(%rip),%r14
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xed0(%rip),%rbx
mov    %rsp,%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x4(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x10(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x14(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x18(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x1c(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x20(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x24(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    0x24(%rsp),%esi
test   %esi,%esi
je     123f <main+0x10f>
lea    0xdea(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x20(%rsp),%esi
test   %esi,%esi
je     1255 <main+0x125>
lea    0xdd4(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x1c(%rsp),%esi
test   %esi,%esi
je     126b <main+0x13b>
lea    0xdbe(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x18(%rsp),%esi
test   %esi,%esi
je     1281 <main+0x151>
lea    0xda8(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x14(%rsp),%esi
test   %esi,%esi
je     1297 <main+0x167>
lea    0xd92(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x10(%rsp),%esi
test   %esi,%esi
je     12ad <main+0x17d>
lea    0xd7c(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0xc(%rsp),%esi
test   %esi,%esi
je     12c3 <main+0x193>
lea    0xd66(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x8(%rsp),%esi
test   %esi,%esi
je     12d9 <main+0x1a9>
lea    0xd50(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x4(%rsp),%esi
test   %esi,%esi
je     12ef <main+0x1bf>
lea    0xd3a(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    (%rsp),%esi
test   %esi,%esi
je     1304 <main+0x1d4>
lea    0xd25(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xd34(%rip),%rdi
call   1030 <system@plt>
xor    %eax,%eax
add    $0x28,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [31 x i8] c"Inserire il numero dell'array \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [29 x i8] c"\0AIl numero dell'array e' %d\0A\00"
@.str.3 = [6 x i8] c"PAUSE\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca [10 x i32]
store i32 0, i32* %1
store i32 0, i32* %2
br label %4
4: ; preds = %13, %0
%5 = load i32, i32* %2
%6 = icmp slt i32 %5, 10
br i1 %6, label %7, label %16
7: ; preds = %4
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%9 = load i32, i32* %2
%10 = sext i32 %9 to i64
%11 = getelementptr inbounds [10 x i32], [10 x i32]* %3, i64 0, i64 %10
%12 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %11)
br label %13
13: ; preds = %7
%14 = load i32, i32* %2
%15 = add nsw i32 %14, 1
store i32 %15, i32* %2
br label %4
16: ; preds = %4
store i32 9, i32* %2
br label %17
17: ; preds = %33, %16
%18 = load i32, i32* %2
%19 = icmp sge i32 %18, 0
br i1 %19, label %20, label %36
20: ; preds = %17
%21 = load i32, i32* %2
%22 = sext i32 %21 to i64
%23 = getelementptr inbounds [10 x i32], [10 x i32]* %3, i64 0, i64 %22
%24 = load i32, i32* %23
%25 = icmp ne i32 %24, 0
br i1 %25, label %26, label %32
26: ; preds = %20
%27 = load i32, i32* %2
%28 = sext i32 %27 to i64
%29 = getelementptr inbounds [10 x i32], [10 x i32]* %3, i64 0, i64 %28
%30 = load i32, i32* %29
%31 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %30)
br label %32
32: ; preds = %26, %20
br label %33
33: ; preds = %32
%34 = load i32, i32* %2
%35 = add nsw i32 %34, -1
store i32 %35, i32* %2
br label %17
36: ; preds = %17
%37 = call i32 @system(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0))
%38 = load i32, i32* %1
ret i32 %38
}

LLVM IR (-O2):
@.str = [31 x i8] c"Inserire il numero dell'array \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [29 x i8] c"\0AIl numero dell'array e' %d\0A\00"
@.str.3 = [6 x i8] c"PAUSE\00"
define i32 @main() {
%1 = alloca [10 x i32]
%2 = bitcast [10 x i32]* %1 to i8*
%3 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%4 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 0
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %4)
%6 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%7 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 1
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %7)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%10 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 2
%11 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %10)
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%13 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 3
%14 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %13)
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%16 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 4
%17 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %16)
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%19 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 5
%20 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %19)
%21 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%22 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 6
%23 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %22)
%24 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%25 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 7
%26 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %25)
%27 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%28 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 8
%29 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %28)
%30 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str, i64 0, i64 0))
%31 = getelementptr inbounds [10 x i32], [10 x i32]* %1, i64 0, i64 9
%32 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %31)
%33 = load i32, i32* %31
%34 = icmp eq i32 %33, 0
br i1 %34, label %37, label %35
35: ; preds = %0
%36 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %33)
br label %37
37: ; preds = %0, %35
%38 = load i32, i32* %28
%39 = icmp eq i32 %38, 0
br i1 %39, label %42, label %40
40: ; preds = %37
%41 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %38)
br label %42
42: ; preds = %40, %37
%43 = load i32, i32* %25
%44 = icmp eq i32 %43, 0
br i1 %44, label %47, label %45
45: ; preds = %42
%46 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %43)
br label %47
47: ; preds = %45, %42
%48 = load i32, i32* %22
%49 = icmp eq i32 %48, 0
br i1 %49, label %52, label %50
50: ; preds = %47
%51 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %48)
br label %52
52: ; preds = %50, %47
%53 = load i32, i32* %19
%54 = icmp eq i32 %53, 0
br i1 %54, label %57, label %55
55: ; preds = %52
%56 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %53)
br label %57
57: ; preds = %55, %52
%58 = load i32, i32* %16
%59 = icmp eq i32 %58, 0
br i1 %59, label %62, label %60
60: ; preds = %57
%61 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %58)
br label %62
62: ; preds = %60, %57
%63 = load i32, i32* %13
%64 = icmp eq i32 %63, 0
br i1 %64, label %67, label %65
65: ; preds = %62
%66 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %63)
br label %67
67: ; preds = %65, %62
%68 = load i32, i32* %10
%69 = icmp eq i32 %68, 0
br i1 %69, label %72, label %70
70: ; preds = %67
%71 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %68)
br label %72
72: ; preds = %70, %67
%73 = load i32, i32* %7
%74 = icmp eq i32 %73, 0
br i1 %74, label %77, label %75
75: ; preds = %72
%76 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %73)
br label %77
77: ; preds = %75, %72
%78 = load i32, i32* %4
%79 = icmp eq i32 %78, 0
br i1 %79, label %82, label %80
80: ; preds = %77
%81 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0), i32 %78)
br label %82
82: ; preds = %80, %77
%83 = call i32 @system(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0))
ret i32 0
}