#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 debug_matrix(int *a, int num) {
  int i = 0;
  for (i = 0; i < num * num; i++) {
    if (i % num == 0)
      printf("\n");
    printf("%d\t", *(a + i));
  }
  printf("\n");
}


x86 assembly (clang, -O0):
<debug_matrix>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
mov    -0xc(%rbp),%ecx
imul   -0xc(%rbp),%ecx
cmp    %ecx,%eax
jge    1184 <debug_matrix+0x74>
mov    -0x10(%rbp),%eax
cltd
idivl  -0xc(%rbp)
cmp    $0x0,%edx
jne    115d <debug_matrix+0x4d>
lea    0xeaa(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe93(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    112d <debug_matrix+0x1d>
lea    0xe75(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<debug_matrix>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
mov    %esi,%eax
imul   %esi,%eax
test   %eax,%eax
je     117d <debug_matrix+0x5d>
mov    %esi,%r12d
mov    %rdi,%r14
mov    %eax,%ebp
lea    0xec0(%rip),%r15
xor    %ebx,%ebx
jmp    1167 <debug_matrix+0x47>
cs nopw 0x0(%rax,%rax,1)
xchg   %ax,%ax
mov    (%r14,%rbx,4),%esi
mov    %r15,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%rbp
je     117d <debug_matrix+0x5d>
mov    %ebx,%eax
cltd
idiv   %r12d
test   %edx,%edx
jne    1150 <debug_matrix+0x30>
mov    $0xa,%edi
call   1030 <putchar@plt>
jmp    1150 <debug_matrix+0x30>
mov    $0xa,%edi
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"\0A\00"
@.str.1 = [4 x i8] c"%d\09\00"
define void @debug_matrix(i32* %0, i32 %1) {
%3 = alloca i32*
%4 = alloca i32
%5 = alloca i32
store i32* %0, i32** %3
store i32 %1, i32* %4
store i32 0, i32* %5
store i32 0, i32* %5
br label %6
6: ; preds = %26, %2
%7 = load i32, i32* %5
%8 = load i32, i32* %4
%9 = load i32, i32* %4
%10 = mul nsw i32 %8, %9
%11 = icmp slt i32 %7, %10
br i1 %11, label %12, label %29
12: ; preds = %6
%13 = load i32, i32* %5
%14 = load i32, i32* %4
%15 = srem i32 %13, %14
%16 = icmp eq i32 %15, 0
br i1 %16, label %17, label %19
17: ; preds = %12
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
br label %19
19: ; preds = %17, %12
%20 = load i32*, i32** %3
%21 = load i32, i32* %5
%22 = sext i32 %21 to i64
%23 = getelementptr inbounds i32, i32* %20, i64 %22
%24 = load i32, i32* %23
%25 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %24)
br label %26
26: ; preds = %19
%27 = load i32, i32* %5
%28 = add nsw i32 %27, 1
store i32 %28, i32* %5
br label %6
29: ; preds = %6
%30 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c"%d\09\00"
define void @debug_matrix(i32* nocapture %0, i32 %1) {
%3 = mul i32 %1, %1
%4 = icmp eq i32 %3, 0
br i1 %4, label %20, label %5
5: ; preds = %2
%6 = zext i32 %3 to i64
br label %7
7: ; preds = %5, %14
%8 = phi i64 [ 0, %5 ], [ %18, %14 ]
%9 = trunc i64 %8 to i32
%10 = srem i32 %9, %1
%11 = icmp eq i32 %10, 0
br i1 %11, label %12, label %14
12: ; preds = %7
%13 = tail call i32 @putchar(i32 10)
br label %14
14: ; preds = %12, %7
%15 = getelementptr inbounds i32, i32* %0, i64 %8
%16 = load i32, i32* %15
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %16)
%18 = add nuw nsw i64 %8, 1
%19 = icmp eq i64 %18, %6
br i1 %19, label %20, label %7
20: ; preds = %14, %2
%21 = tail call i32 @putchar(i32 10)
ret void
}