import torch
import torch.nn as nn


def IoU(logit, truth, smooth=1):
    prob = torch.sigmoid(logit)
    intersection = torch.sum(prob * truth)
    union = torch.sum(prob + truth)
    iou = (2 * intersection + smooth) / (union + smooth)
    return iou


class DiceLoss(nn.Module):

    def __init__(self, smooth=1):
        super(DiceLoss, self).__init__()
        self.smooth = smooth

    def forward(self, logit, truth):
        iou = IoU(logit, truth, self.smooth)
        loss = 1 - iou
        return loss


def get_inputs():
    return [torch.rand([4, 4, 4, 4]), torch.rand([4, 4, 4, 4])]


def get_init_inputs():
    return [[], {}]

import torch
import triton
import triton.language as tl
from torch._inductor.runtime.triton_heuristics import grid
from torch._C import _cuda_getCurrentRawStream as get_raw_stream
from torch._inductor.runtime import triton_helpers
import torch.nn as nn
assert_size_stride = torch._C._dynamo.guards.assert_size_stride
empty_strided_cuda = torch._C._dynamo.guards._empty_strided_cuda


@triton.jit
def triton_per_fused_add_div_mul_rsub_sigmoid_sum_0(in_out_ptr0, in_ptr0,
    in_ptr1, xnumel, rnumel):
    XBLOCK: tl.constexpr = 1
    RBLOCK: tl.constexpr = 256
    xoffset = tl.program_id(0) * XBLOCK
    tl.full([1], xoffset, tl.int32)
    tl.full([RBLOCK], True, tl.int1)
    rindex = tl.arange(0, RBLOCK)[:]
    tl.full([RBLOCK], True, tl.int1)
    r0 = rindex
    tmp0 = tl.load(in_ptr0 + r0, None)
    tmp2 = tl.load(in_ptr1 + r0, None)
    tmp1 = tl.sigmoid(tmp0)
    tmp3 = tmp1 * tmp2
    tmp4 = tl.broadcast_to(tmp3, [RBLOCK])
    tmp6 = triton_helpers.promote_to_tensor(tl.sum(tmp4, 0))
    tmp7 = tmp1 + tmp2
    tmp8 = tl.broadcast_to(tmp7, [RBLOCK])
    tmp10 = triton_helpers.promote_to_tensor(tl.sum(tmp8, 0))
    tmp11 = 2.0
    tmp12 = tmp6 * tmp11
    tmp13 = 1.0
    tmp14 = tmp12 + tmp13
    tmp15 = tmp10 + tmp13
    tmp16 = tmp14 / tmp15
    tmp17 = tmp13 - tmp16
    tl.debug_barrier()
    tl.store(in_out_ptr0 + tl.full([1], 0, tl.int32), tmp17, None)


def call(args):
    arg0_1, arg1_1 = args
    args.clear()
    assert_size_stride(arg0_1, (4, 4, 4, 4), (64, 16, 4, 1))
    assert_size_stride(arg1_1, (4, 4, 4, 4), (64, 16, 4, 1))
    with torch.cuda._DeviceGuard(0):
        torch.cuda.set_device(0)
        buf0 = empty_strided_cuda((), (), torch.float32)
        buf2 = buf0
        del buf0
        get_raw_stream(0)
        triton_per_fused_add_div_mul_rsub_sigmoid_sum_0[grid(1)](buf2,
            arg0_1, arg1_1, 1, 256, num_warps=2, num_stages=1)
        del arg0_1
        del arg1_1
    return buf2,


def IoU(logit, truth, smooth=1):
    prob = torch.sigmoid(logit)
    intersection = torch.sum(prob * truth)
    union = torch.sum(prob + truth)
    iou = (2 * intersection + smooth) / (union + smooth)
    return iou


class DiceLossNew(nn.Module):

    def __init__(self, smooth=1):
        super(DiceLossNew, self).__init__()
        self.smooth = smooth

    def forward(self, input_0, input_1):
        arg0_1 = input_0
        arg1_1 = input_1
        output = call([arg0_1, arg1_1])
        return output[0]
