#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 array_print(int a[20][20], int n) {
  int i, j;
  for (i = 0; i < n; i++) {
    for (j = 0; j < n; j++)
      printf("%3d", a[i][j]);
    printf("\n");
  }
}


x86 assembly (clang, -O0):
<array_print>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1193 <array_print+0x83>
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1177 <array_print+0x67>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
imul   $0x50,%rcx,%rcx
add    %rcx,%rax
movslq -0x14(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe9e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1139 <array_print+0x29>
lea    0xe86(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1126 <array_print+0x16>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<array_print>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
test   %esi,%esi
jle    117f <array_print+0x5f>
mov    %rdi,%r13
mov    %esi,%r15d
lea    0xec6(%rip),%r14
xor    %r12d,%r12d
nopl   (%rax)
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
mov    0x0(%r13,%rbx,4),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r15
jne    1150 <array_print+0x30>
mov    $0xa,%edi
call   1030 <putchar@plt>
add    $0x1,%r12
add    $0x50,%r13
cmp    %r15,%r12
jne    1140 <array_print+0x20>
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

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

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