#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*/ getch();
int /*<<< orphan*/ printf(char *, int);
int /*<<< orphan*/ scanf(char *, int *);
main() {
  int const LINHA = 3, COLUNA = 4;
  int i, j, matriz[LINHA][COLUNA];
  for (i = 0; i < LINHA; i++) {
    printf("\n%dª Linha:\n", i + 1);
    for (j = 0; j < COLUNA; j++)
      scanf("%d", &matriz[i][j]);
  }
  for (i = 0; i < LINHA; i++) {
    for (j = 0; j < COLUNA; j++)
      printf(" %d", matriz[i][j]);
  }
  getch();
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x50,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x3,-0x8(%rbp)
movl   $0x4,-0xc(%rbp)
mov    %rsp,%rax
mov    %rax,-0x20(%rbp)
movl   $0x0,-0x10(%rbp)
cmpl   $0x3,-0x10(%rbp)
jge    11d3 <main+0xa3>
mov    -0x10(%rbp),%esi
add    $0x1,%esi
lea    0xe8e(%rip),%rdi
call   1030 <printf@plt>
movl   $0x0,-0x14(%rbp)
cmpl   $0x4,-0x14(%rbp)
jge    11c0 <main+0x90>
movslq -0x10(%rbp),%rax
shl    $0x2,%rax
lea    -0x50(%rbp),%rsi
shl    $0x2,%rax
add    %rax,%rsi
movslq -0x14(%rbp),%rax
shl    $0x2,%rax
add    %rax,%rsi
lea    0xe62(%rip),%rdi
call   1040 <scanf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    117e <main+0x4e>
jmp    11c5 <main+0x95>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    115b <main+0x2b>
movl   $0x0,-0x10(%rbp)
cmpl   $0x3,-0x10(%rbp)
jge    123c <main+0x10c>
movl   $0x0,-0x14(%rbp)
cmpl   $0x4,-0x14(%rbp)
jge    1229 <main+0xf9>
movslq -0x10(%rbp),%rcx
shl    $0x2,%rcx
lea    -0x50(%rbp),%rax
shl    $0x2,%rcx
add    %rcx,%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xdf8(%rip),%rdi
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    11eb <main+0xbb>
jmp    122e <main+0xfe>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    11da <main+0xaa>
mov    $0x0,%al
call   1050 <getch@plt>
mov    -0x20(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
add    $0x50,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
sub    $0x38,%rsp
lea    0xec2(%rip),%r14
mov    %r14,%rdi
mov    $0x1,%esi
call   1030 <printf@plt>
lea    0xebd(%rip),%rbx
mov    %rsp,%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x4(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    %r14,%rdi
mov    $0x2,%esi
call   1030 <printf@plt>
lea    0x10(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x14(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x18(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x1c(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    %r14,%rdi
mov    $0x3,%esi
call   1030 <printf@plt>
lea    0x20(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x24(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x28(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x2c(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    (%rsp),%esi
lea    0xdfe(%rip),%rbx
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x4(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x8(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0xc(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x10(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x14(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x18(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x1c(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x20(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x24(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x28(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
mov    0x2c(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
xor    %eax,%eax
call   1050 <getch@plt>
xor    %eax,%eax
add    $0x38,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [14 x i8] c"\0A%d\C2\AA Linha:\0A\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [4 x i8] c" %d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
%6 = alloca i8*
store i32 0, i32* %1
store i32 3, i32* %2
store i32 4, i32* %3
%7 = call i8* @llvm.stacksave()
store i8* %7, i8** %6
%8 = alloca i32, i64 12
store i32 0, i32* %4
br label %9
9: ; preds = %32, %0
%10 = load i32, i32* %4
%11 = icmp slt i32 %10, 3
br i1 %11, label %12, label %35
12: ; preds = %9
%13 = load i32, i32* %4
%14 = add nsw i32 %13, 1
%15 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0), i32 %14)
store i32 0, i32* %5
br label %16
16: ; preds = %28, %12
%17 = load i32, i32* %5
%18 = icmp slt i32 %17, 4
br i1 %18, label %19, label %31
19: ; preds = %16
%20 = load i32, i32* %4
%21 = sext i32 %20 to i64
%22 = mul nsw i64 %21, 4
%23 = getelementptr inbounds i32, i32* %8, i64 %22
%24 = load i32, i32* %5
%25 = sext i32 %24 to i64
%26 = getelementptr inbounds i32, i32* %23, i64 %25
%27 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %26)
br label %28
28: ; preds = %19
%29 = load i32, i32* %5
%30 = add nsw i32 %29, 1
store i32 %30, i32* %5
br label %16
31: ; preds = %16
br label %32
32: ; preds = %31
%33 = load i32, i32* %4
%34 = add nsw i32 %33, 1
store i32 %34, i32* %4
br label %9
35: ; preds = %9
store i32 0, i32* %4
br label %36
36: ; preds = %57, %35
%37 = load i32, i32* %4
%38 = icmp slt i32 %37, 3
br i1 %38, label %39, label %60
39: ; preds = %36
store i32 0, i32* %5
br label %40
40: ; preds = %53, %39
%41 = load i32, i32* %5
%42 = icmp slt i32 %41, 4
br i1 %42, label %43, label %56
43: ; preds = %40
%44 = load i32, i32* %4
%45 = sext i32 %44 to i64
%46 = mul nsw i64 %45, 4
%47 = getelementptr inbounds i32, i32* %8, i64 %46
%48 = load i32, i32* %5
%49 = sext i32 %48 to i64
%50 = getelementptr inbounds i32, i32* %47, i64 %49
%51 = load i32, i32* %50
%52 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %51)
br label %53
53: ; preds = %43
%54 = load i32, i32* %5
%55 = add nsw i32 %54, 1
store i32 %55, i32* %5
br label %40
56: ; preds = %40
br label %57
57: ; preds = %56
%58 = load i32, i32* %4
%59 = add nsw i32 %58, 1
store i32 %59, i32* %4
br label %36
60: ; preds = %36
%61 = call i32 (...) @getch()
%62 = load i8*, i8** %6
%63 = load i32, i32* %1
ret i32 %63
}

LLVM IR (-O2):
@.str = [14 x i8] c"\0A%d\C2\AA Linha:\0A\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [4 x i8] c" %d\00"
define i32 @main() {
%1 = alloca [12 x i32]
%2 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0), i32 1)
%3 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 0
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%5 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 1
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %5)
%7 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 2
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %7)
%9 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 3
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %9)
%11 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0), i32 2)
%12 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 4
%13 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %12)
%14 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 5
%15 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %14)
%16 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 6
%17 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %16)
%18 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 7
%19 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %18)
%20 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0), i32 3)
%21 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 8
%22 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %21)
%23 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 9
%24 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %23)
%25 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 10
%26 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %25)
%27 = getelementptr inbounds [12 x i32], [12 x i32]* %1, i64 0, i64 11
%28 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %27)
%29 = load i32, i32* %3
%30 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %29)
%31 = load i32, i32* %5
%32 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %31)
%33 = load i32, i32* %7
%34 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %33)
%35 = load i32, i32* %9
%36 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %35)
%37 = load i32, i32* %12
%38 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %37)
%39 = load i32, i32* %14
%40 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %39)
%41 = load i32, i32* %16
%42 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %41)
%43 = load i32, i32* %18
%44 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %43)
%45 = load i32, i32* %21
%46 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %45)
%47 = load i32, i32* %23
%48 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %47)
%49 = load i32, i32* %25
%50 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %49)
%51 = load i32, i32* %27
%52 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %51)
%53 = call i32 (...) @getch()
ret i32 0
}