From 6b0ac6ae4ad98a6265de78b867c6871c8d4c5cb6 Mon Sep 17 00:00:00 2001
From: Lutz Roeder <lutzroeder@users.noreply.github.com>
Date: Thu, 9 Dec 2021 16:31:37 -0500
Subject: [PATCH] Add TorchScript test file (#842)

---
 source/pytorch.js | 21 +++++++++++++++++++++
 test/models.json  |  7 +++++++
 2 files changed, 28 insertions(+)

diff --git a/source/pytorch.js b/source/pytorch.js
index e1d17b9228..1542927d9e 100644
--- a/source/pytorch.js
+++ b/source/pytorch.js
@@ -1561,11 +1561,17 @@ pytorch.Execution = class extends python.Execution {
                 return left === right;
             }
             if (typeof left === 'number' && typeof right === 'number') {
+                if (isNaN(left) && isNaN(right)) {
+                    return true;
+                }
                 return left === right;
             }
             if (left === undefined || right === undefined) {
                 return true;
             }
+            if (Array.isArray(left) && Array.isArray(right)) {
+                return left.length === right.length && left.every((item, index) => item === right[index]);
+            }
             throw new pytorch.Error("Unknown 'torch.eq' expression type.");
         });
         this.registerFunction('torch.floor', function(value) {
@@ -2995,6 +3001,7 @@ pytorch.Container.Zip.Execution = class extends pytorch.Execution {
                                         case 'torch.batch_norm':
                                         case 'torch.gelu':
                                         case 'torch.relu':
+                                        case 'torch.clamp_':
                                         case 'torch.hardswish_': {
                                             const input = this.expression(args[0], context);
                                             if (pytorch.Utility.isTensor(input) && Array.isArray(input.size())) {
@@ -3320,6 +3327,20 @@ pytorch.Container.Zip.Execution = class extends pytorch.Execution {
                     tensor.resize_([ NaN, NaN, NaN, NaN ]);
                 }
             }
+            if (statement.type === '=' &&
+                statement.expression.type === 'call' && statement.expression.arguments.length > 0 &&
+                pytorch.Utility.isCall(statement.expression.arguments[0], 'torch.size', 2)) {
+                const tensor = this.expression(statement.expression.arguments[0].arguments[0], context);
+                const dim = this.expression(statement.expression.arguments[0].arguments[1], context);
+                if (pytorch.Utility.isTensor(tensor) && Number.isInteger(dim)) {
+                    if (tensor.shape === undefined) {
+                        tensor.resize_(Array(dim + 1).fill(NaN));
+                    }
+                    else if (Array.isArray(tensor.shape) && tensor.shape.length <= dim) {
+                        tensor.resize_(tensor.shape.concat(Array(dim + 1 - tensor.shape.length).fill(NaN)));
+                    }
+                }
+            }
             const value = this.statement(statement, context);
             if (value !== undefined) {
                 return value;
diff --git a/test/models.json b/test/models.json
index 3918fba639..058a18d824 100644
--- a/test/models.json
+++ b/test/models.json
@@ -4922,6 +4922,13 @@
     "format": "TorchScript v1.5",
     "link":   "https://github.com/lutzroeder/netron/issues/546"
   },
+  {
+    "type":   "pytorch",
+    "target": "torchscript_resnet50_fp32.pth",
+    "source": "https://github.com/lutzroeder/netron/files/7688572/torchscript_resnet50_fp32.pth.zip[torchscript_resnet50_fp32.pth]",
+    "format": "TorchScript v1.6",
+    "link":   "https://github.com/lutzroeder/netron/issues/842"
+  },  
   {
     "type":   "pytorch",
     "target": "tutorial_bidirectional_recurrent_neural_network.pth",