#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 print2D(int *ptr, int r, int c) {
  for (int i = 0; i < r; i++) {
    for (int j = 0; j < c; j++) {
      printf("%4d ", ptr[i * c + j]);
    }
    printf("\n");
  }
}


x86 assembly (clang, -O0):
<print2D>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
mov    %edx,-0x10(%rbp)
movl   $0x0,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1194 <print2D+0x84>
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x10(%rbp),%eax
jge    1178 <print2D+0x68>
mov    -0x8(%rbp),%rax
mov    -0x14(%rbp),%ecx
imul   -0x10(%rbp),%ecx
add    -0x18(%rbp),%ecx
movslq %ecx,%rcx
mov    (%rax,%rcx,4),%esi
lea    0xe9d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    113c <print2D+0x2c>
lea    0xe86(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1129 <print2D+0x19>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print2D>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x18,%rsp
mov    %edx,0xc(%rsp)
test   %esi,%esi
jle    11a9 <print2D+0x89>
mov    %rdi,%rbx
movslq 0xc(%rsp),%r15
mov    %esi,%eax
mov    %rax,0x10(%rsp)
mov    %r15d,%ebp
shl    $0x2,%r15
lea    0xead(%rip),%r13
xor    %r14d,%r14d
jmp    1178 <print2D+0x58>
nopl   0x0(%rax,%rax,1)
mov    $0xa,%edi
call   1030 <putchar@plt>
add    $0x1,%r14
add    %r15,%rbx
cmp    0x10(%rsp),%r14
je     11a9 <print2D+0x89>
cmpl   $0x0,0xc(%rsp)
jle    1160 <print2D+0x40>
xor    %r12d,%r12d
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
mov    (%rbx,%r12,4),%esi
mov    %r13,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%r12
cmp    %r12,%rbp
jne    1190 <print2D+0x70>
jmp    1160 <print2D+0x40>
add    $0x18,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [5 x i8] c"%4d \00"
@.str.1 = [2 x i8] c"\0A\00"
define void @print2D(i32* %0, i32 %1, i32 %2) {
%4 = alloca i32*
%5 = alloca i32
%6 = alloca i32
%7 = alloca i32
%8 = alloca i32
store i32* %0, i32** %4
store i32 %1, i32* %5
store i32 %2, i32* %6
store i32 0, i32* %7
br label %9
9: ; preds = %34, %3
%10 = load i32, i32* %7
%11 = load i32, i32* %5
%12 = icmp slt i32 %10, %11
br i1 %12, label %13, label %37
13: ; preds = %9
store i32 0, i32* %8
br label %14
14: ; preds = %29, %13
%15 = load i32, i32* %8
%16 = load i32, i32* %6
%17 = icmp slt i32 %15, %16
br i1 %17, label %18, label %32
18: ; preds = %14
%19 = load i32*, i32** %4
%20 = load i32, i32* %7
%21 = load i32, i32* %6
%22 = mul nsw i32 %20, %21
%23 = load i32, i32* %8
%24 = add nsw i32 %22, %23
%25 = sext i32 %24 to i64
%26 = getelementptr inbounds i32, i32* %19, i64 %25
%27 = load i32, i32* %26
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i32 %27)
br label %29
29: ; preds = %18
%30 = load i32, i32* %8
%31 = add nsw i32 %30, 1
store i32 %31, i32* %8
br label %14
32: ; preds = %14
%33 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
br label %34
34: ; preds = %32
%35 = load i32, i32* %7
%36 = add nsw i32 %35, 1
store i32 %36, i32* %7
br label %9
37: ; preds = %9
ret void
}

LLVM IR (-O2):
@.str = [5 x i8] c"%4d \00"
define void @print2D(i32* nocapture %0, i32 %1, i32 %2) {
%4 = icmp sgt i32 %1, 0
br i1 %4, label %5, label %14
5: ; preds = %3
%6 = icmp sgt i32 %2, 0
%7 = sext i32 %2 to i64
%8 = zext i32 %1 to i64
%9 = zext i32 %2 to i64
br label %10
10: ; preds = %5, %15
%11 = phi i64 [ 0, %5 ], [ %17, %15 ]
br i1 %6, label %12, label %15
12: ; preds = %10
%13 = mul nsw i64 %11, %7
br label %19
14: ; preds = %15, %3
ret void
15: ; preds = %19, %10
%16 = tail call i32 @putchar(i32 10)
%17 = add nuw nsw i64 %11, 1
%18 = icmp eq i64 %17, %8
br i1 %18, label %14, label %10
19: ; preds = %12, %19
%20 = phi i64 [ 0, %12 ], [ %25, %19 ]
%21 = add nsw i64 %20, %13
%22 = getelementptr inbounds i32, i32* %0, i64 %21
%23 = load i32, i32* %22
%24 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i32 %23)
%25 = add nuw nsw i64 %20, 1
%26 = icmp eq i64 %25, %9
br i1 %26, label %15, label %19
}