From 7ec2d03465ebbb8aaa766acedc7710238a30eab7 Mon Sep 17 00:00:00 2001
From: nihuini <nihuini@tencent.com>
Date: Tue, 5 Aug 2025 19:59:14 +0800
Subject: [PATCH] flip

---
 tools/pnnx/src/pass_level2/torch_flip.cpp | 7 -------
 tools/pnnx/tests/onnx/test_torch_flip.py  | 4 ++++
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/tools/pnnx/src/pass_level2/torch_flip.cpp b/tools/pnnx/src/pass_level2/torch_flip.cpp
index 01ba7524b..862a58e12 100644
--- a/tools/pnnx/src/pass_level2/torch_flip.cpp
+++ b/tools/pnnx/src/pass_level2/torch_flip.cpp
@@ -55,10 +55,7 @@ pnnx.Output             output      1 0 out
             int step = captured_params.at("steps").i;
 
             if (axis == 0 && start == -1 && end == INT_MIN + 1 && step == -1)
-            {
-                fprintf(stderr, "aaa %d %d %d\n", start, end, step);
                 return true;
-            }
         }
         else // if (captured_params.at("axes").type == 5)
         {
@@ -70,14 +67,10 @@ pnnx.Output             output      1 0 out
             for (size_t i = 0; i < axes.size(); i++)
             {
                 if (starts[i] != -1 || ends[i] != INT_MIN + 1 || steps[i] != -1)
-                {
-                    fprintf(stderr, "%d %d %d\n", starts[i], ends[i], steps[i]);
                     return false;
-                }
             }
         }
 
-        fprintf(stderr, "bbb\n");
         return true;
     }
 
diff --git a/tools/pnnx/tests/onnx/test_torch_flip.py b/tools/pnnx/tests/onnx/test_torch_flip.py
index 8fcaecd55..15b20bb77 100644
--- a/tools/pnnx/tests/onnx/test_torch_flip.py
+++ b/tools/pnnx/tests/onnx/test_torch_flip.py
@@ -4,6 +4,7 @@
 import torch
 import torch.nn as nn
 import torch.nn.functional as F
+from packaging import version
 
 class Model(nn.Module):
     def __init__(self):
@@ -44,6 +45,9 @@ class Model(nn.Module):
         return x0, y0, y1, y2, z0, z1, z2, z3, z4, z5, z6, w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14
 
 def test():
+    if version.parse(torch.__version__) < version.parse('1.12'):
+        return True
+
     net = Model()
     net.eval()