#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 *, ...);
void matrix_print(int **M, int n) {
  int i, j;
  printf("0x%x = [\n", (unsigned int)M);
  for (i = 0; i < n; ++i) {
    printf("%d: ", i);
    for (j = 0; j < n; ++j) {
      printf("%4d ", M[i][j]);
    }
    printf("\n");
  }
  printf("]\n");
}


x86 assembly (clang, -O0):
<matrix_print>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
mov    -0x8(%rbp),%rax
mov    %eax,%esi
lea    0xed4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    11b5 <matrix_print+0xa5>
mov    -0x10(%rbp),%esi
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1199 <matrix_print+0x89>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,8),%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe8b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    115e <matrix_print+0x4e>
lea    0xe68(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    113a <matrix_print+0x2a>
lea    0xe58(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<matrix_print>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
push   %rax
mov    %esi,%ebx
mov    %rdi,%r12
lea    0xeb9(%rip),%rdi
mov    %r12d,%esi
xor    %eax,%eax
call   1050 <printf@plt>
test   %ebx,%ebx
jle    11ad <matrix_print+0x7d>
mov    %ebx,%r13d
lea    0xeab(%rip),%r14
lea    0xea9(%rip),%r15
xor    %ebx,%ebx
nopl   0x0(%rax,%rax,1)
mov    %r14,%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1050 <printf@plt>
xor    %ebp,%ebp
xchg   %ax,%ax
mov    (%r12,%rbx,8),%rax
mov    (%rax,%rbp,4),%esi
mov    %r15,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
add    $0x1,%rbp
cmp    %rbp,%r13
jne    1180 <matrix_print+0x50>
mov    $0xa,%edi
call   1030 <putchar@plt>
add    $0x1,%rbx
cmp    %r13,%rbx
jne    1170 <matrix_print+0x40>
lea    0xe60(%rip),%rdi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
jmp    1040 <puts@plt>

LLVM IR (-O0):
@.str = [10 x i8] c"0x%x = [\0A\00"
@.str.1 = [5 x i8] c"%d: \00"
@.str.2 = [5 x i8] c"%4d \00"
@.str.3 = [2 x i8] c"\0A\00"
@.str.4 = [3 x i8] c"]\0A\00"
define void @matrix_print(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 = load i32**, i32*** %3
%8 = ptrtoint i32** %7 to i32
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), i32 %8)
store i32 0, i32* %5
br label %10
10: ; preds = %37, %2
%11 = load i32, i32* %5
%12 = load i32, i32* %4
%13 = icmp slt i32 %11, %12
br i1 %13, label %14, label %40
14: ; preds = %10
%15 = load i32, i32* %5
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32 %15)
store i32 0, i32* %6
br label %17
17: ; preds = %32, %14
%18 = load i32, i32* %6
%19 = load i32, i32* %4
%20 = icmp slt i32 %18, %19
br i1 %20, label %21, label %35
21: ; preds = %17
%22 = load i32**, i32*** %3
%23 = load i32, i32* %5
%24 = sext i32 %23 to i64
%25 = getelementptr inbounds i32*, i32** %22, i64 %24
%26 = load i32*, i32** %25
%27 = load i32, i32* %6
%28 = sext i32 %27 to i64
%29 = getelementptr inbounds i32, i32* %26, i64 %28
%30 = load i32, i32* %29
%31 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i32 %30)
br label %32
32: ; preds = %21
%33 = load i32, i32* %6
%34 = add nsw i32 %33, 1
store i32 %34, i32* %6
br label %17
35: ; preds = %17
%36 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
br label %37
37: ; preds = %35
%38 = load i32, i32* %5
%39 = add nsw i32 %38, 1
store i32 %39, i32* %5
br label %10
40: ; preds = %10
%41 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.4, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str = [10 x i8] c"0x%x = [\0A\00"
@.str.1 = [5 x i8] c"%d: \00"
@.str.2 = [5 x i8] c"%4d \00"
@str = [2 x i8] c"]\00"
define void @matrix_print(i32** %0, i32 %1) {
%3 = ptrtoint i32** %0 to i64
%4 = trunc i64 %3 to i32
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i64 0, i64 0), i32 %4)
%6 = icmp sgt i32 %1, 0
br i1 %6, label %7, label %26
7: ; preds = %2
%8 = zext i32 %1 to i64
br label %9
9: ; preds = %22, %7
%10 = phi i64 [ 0, %7 ], [ %24, %22 ]
%11 = trunc i64 %10 to i32
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32 %11)
%13 = getelementptr inbounds i32*, i32** %0, i64 %10
br label %14
14: ; preds = %9, %14
%15 = phi i64 [ 0, %9 ], [ %20, %14 ]
%16 = load i32*, i32** %13
%17 = getelementptr inbounds i32, i32* %16, i64 %15
%18 = load i32, i32* %17
%19 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i32 %18)
%20 = add nuw nsw i64 %15, 1
%21 = icmp eq i64 %20, %8
br i1 %21, label %22, label %14
22: ; preds = %14
%23 = tail call i32 @putchar(i32 10)
%24 = add nuw nsw i64 %10, 1
%25 = icmp eq i64 %24, %8
br i1 %25, label %26, label %9
26: ; preds = %22, %2
%27 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([2 x i8], [2 x i8]* @str, i64 0, i64 0))
ret void
}