From a96b45e6aa214f817c9d1e955e40499a86f62707 Mon Sep 17 00:00:00 2001
From: kevinlam92 <kevin.lam92@gmail.com>
Date: Tue, 3 Mar 2026 22:46:32 -0800
Subject: [PATCH 1/4] [React Native] Fix float16 tensor crash by mapping to
 Uint16Array

Hermes does not support Float16Array (ES2024). The React Native binding
maps ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT16 to "Float16Array" which
causes a crash when the JSI global lookup returns undefined.

Change to "Uint16Array" to match the approach taken in the Node.js
binding fix (#27327).
---
 js/react_native/cpp/TensorUtils.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/js/react_native/cpp/TensorUtils.cpp b/js/react_native/cpp/TensorUtils.cpp
index 79d270d883294..658e98491e17b 100644
--- a/js/react_native/cpp/TensorUtils.cpp
+++ b/js/react_native/cpp/TensorUtils.cpp
@@ -54,7 +54,7 @@ static const std::unordered_map<ONNXTensorElementDataType, const char*>
         {ONNX_TENSOR_ELEMENT_DATA_TYPE_INT8, "Int8Array"},
         {ONNX_TENSOR_ELEMENT_DATA_TYPE_UINT16, "Uint16Array"},
         {ONNX_TENSOR_ELEMENT_DATA_TYPE_INT16, "Int16Array"},
-        {ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT16, "Float16Array"},
+        {ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT16, "Uint16Array"},
         {ONNX_TENSOR_ELEMENT_DATA_TYPE_STRING, "Array"},
         {ONNX_TENSOR_ELEMENT_DATA_TYPE_BOOL, "Uint8Array"},
 };

From 768c80afbf49ad205c5c6552b5b6396bb2b7db91 Mon Sep 17 00:00:00 2001
From: kevinlam92 <kevin.lam92@gmail.com>
Date: Tue, 10 Mar 2026 00:44:33 -0700
Subject: [PATCH 2/4] Add float16 e2e test to BasicTypesTest

---
 .../app/src/main/assets/test_types_float16.ort   | Bin 0 -> 1936 bytes
 js/react_native/e2e/src/BasicTypesTest.tsx       |  13 +++++++++++++
 js/react_native/e2e/src/test_types_float16.ort   | Bin 0 -> 1936 bytes
 3 files changed, 13 insertions(+)
 create mode 100644 js/react_native/e2e/android/app/src/main/assets/test_types_float16.ort
 create mode 100644 js/react_native/e2e/src/test_types_float16.ort

diff --git a/js/react_native/e2e/android/app/src/main/assets/test_types_float16.ort b/js/react_native/e2e/android/app/src/main/assets/test_types_float16.ort
new file mode 100644
index 0000000000000000000000000000000000000000..ec66bb420b978896125cf75ce1dce13d840055e5
GIT binary patch
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HcmV?d00001

diff --git a/js/react_native/e2e/src/BasicTypesTest.tsx b/js/react_native/e2e/src/BasicTypesTest.tsx
index 0995f57a6872b..1bda629c6d4fd 100644
--- a/js/react_native/e2e/src/BasicTypesTest.tsx
+++ b/js/react_native/e2e/src/BasicTypesTest.tsx
@@ -39,6 +39,12 @@ const TEST_MODELS: TestModel[] = [
     dataType: 'float32',
     description: 'Test float32 data type',
   },
+  {
+    name: 'Float16',
+    asset: 'test_types_float16.ort',
+    dataType: 'float16',
+    description: 'Test float16 data type',
+  },
   {
     name: 'Double',
     asset: 'test_types_double.onnx',
@@ -211,6 +217,13 @@ export default class BasicTypesTest extends React.PureComponent<{}, State> {
         }
         return data;
       }
+      case 'float16': {
+        const data = new Uint16Array(size);
+        for (let i = 0; i < size; i++) {
+          data[i] = i;
+        }
+        return data;
+      }
       case 'float64': {
         const data = new Float64Array(size);
         for (let i = 0; i < size; i++) {
diff --git a/js/react_native/e2e/src/test_types_float16.ort b/js/react_native/e2e/src/test_types_float16.ort
new file mode 100644
index 0000000000000000000000000000000000000000..ec66bb420b978896125cf75ce1dce13d840055e5
GIT binary patch
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literal 0
HcmV?d00001


From 4ee137eddf28e9df37cf4475d7238e80fb220d63 Mon Sep 17 00:00:00 2001
From: kevinlam92 <kevin.lam92@gmail.com>
Date: Tue, 10 Mar 2026 01:38:54 -0700
Subject: [PATCH 3/4] Add float16 model to iOS

---
 .../ios/OnnxruntimeModuleExample.xcodeproj/project.pbxproj    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/js/react_native/e2e/ios/OnnxruntimeModuleExample.xcodeproj/project.pbxproj b/js/react_native/e2e/ios/OnnxruntimeModuleExample.xcodeproj/project.pbxproj
index 70a5fcdd33cad..57e12e9bbdcef 100644
--- a/js/react_native/e2e/ios/OnnxruntimeModuleExample.xcodeproj/project.pbxproj
+++ b/js/react_native/e2e/ios/OnnxruntimeModuleExample.xcodeproj/project.pbxproj
@@ -15,6 +15,7 @@
 		3ADD0A3E2EBB64D200761D6F /* ../src/test_types_int32.ort in Resources */ = {isa = PBXBuildFile; fileRef = 3ADD0A392EBB64D200761D6F /* ../src/test_types_int32.ort */; };
 		3ADD0A3F2EBB64D200761D6F /* ../src/test_types_float.ort in Resources */ = {isa = PBXBuildFile; fileRef = 3ADD0A372EBB64D200761D6F /* ../src/test_types_float.ort */; };
 		3ADD0A402EBB64D200761D6F /* ../src/test_types_uint8.ort in Resources */ = {isa = PBXBuildFile; fileRef = 3ADD0A3B2EBB64D200761D6F /* ../src/test_types_uint8.ort */; };
+		3ADD0A462EBB64D200761D6F /* ../src/test_types_float16.ort in Resources */ = {isa = PBXBuildFile; fileRef = 3ADD0A452EBB64D200761D6F /* ../src/test_types_float16.ort */; };
 		3ADD0A422EBB677300761D6F /* test_types_double.onnx in Resources */ = {isa = PBXBuildFile; fileRef = 3ADD0A412EBB677300761D6F /* test_types_double.onnx */; };
 		3ADD0A442EBB679A00761D6F /* test_types_bool.onnx in Resources */ = {isa = PBXBuildFile; fileRef = 3ADD0A432EBB679A00761D6F /* test_types_bool.onnx */; };
 		81AB9BB82411601600AC10FF /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 81AB9BB72411601600AC10FF /* LaunchScreen.storyboard */; };
@@ -62,6 +63,7 @@
 		3ADD0A392EBB64D200761D6F /* ../src/test_types_int32.ort */ = {isa = PBXFileReference; lastKnownFileType = file; path = ../src/test_types_int32.ort; sourceTree = "<group>"; };
 		3ADD0A3A2EBB64D200761D6F /* ../src/test_types_int64.ort */ = {isa = PBXFileReference; lastKnownFileType = file; path = ../src/test_types_int64.ort; sourceTree = "<group>"; };
 		3ADD0A3B2EBB64D200761D6F /* ../src/test_types_uint8.ort */ = {isa = PBXFileReference; lastKnownFileType = file; path = ../src/test_types_uint8.ort; sourceTree = "<group>"; };
+		3ADD0A452EBB64D200761D6F /* ../src/test_types_float16.ort */ = {isa = PBXFileReference; lastKnownFileType = file; path = ../src/test_types_float16.ort; sourceTree = "<group>"; };
 		3ADD0A412EBB677300761D6F /* test_types_double.onnx */ = {isa = PBXFileReference; lastKnownFileType = file; path = ../src/test_types_double.onnx; sourceTree = "<group>"; };
 		3ADD0A432EBB679A00761D6F /* test_types_bool.onnx */ = {isa = PBXFileReference; lastKnownFileType = file; path = ../src/test_types_bool.onnx; sourceTree = "<group>"; };
 		81AB9BB72411601600AC10FF /* LaunchScreen.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; name = LaunchScreen.storyboard; path = OnnxruntimeModuleExample/LaunchScreen.storyboard; sourceTree = "<group>"; };
@@ -149,6 +151,7 @@
 				3ADD0A392EBB64D200761D6F /* ../src/test_types_int32.ort */,
 				3ADD0A3A2EBB64D200761D6F /* ../src/test_types_int64.ort */,
 				3ADD0A3B2EBB64D200761D6F /* ../src/test_types_uint8.ort */,
+				3ADD0A452EBB64D200761D6F /* ../src/test_types_float16.ort */,
 				DBA8BA86267293C4008CC55A /* mnist.ort */,
 				DBBF7413263B8CCB00487C77 /* 3.jpg */,
 				13B07FAE1A68108700A75B9A /* OnnxruntimeModuleExample */,
@@ -275,6 +278,7 @@
 				3ADD0A3E2EBB64D200761D6F /* ../src/test_types_int32.ort in Resources */,
 				3ADD0A3F2EBB64D200761D6F /* ../src/test_types_float.ort in Resources */,
 				3ADD0A402EBB64D200761D6F /* ../src/test_types_uint8.ort in Resources */,
+				3ADD0A462EBB64D200761D6F /* ../src/test_types_float16.ort in Resources */,
 				E329E1162D3728940016B599 /* PrivacyInfo.xcprivacy in Resources */,
 				13B07FBF1A68108700A75B9A /* Images.xcassets in Resources */,
 			);

From 087c97c351b8035b50256c239bf57fb21dfa8e13 Mon Sep 17 00:00:00 2001
From: kevinlam92 <kevin.lam92@gmail.com>
Date: Tue, 10 Mar 2026 02:42:58 -0700
Subject: [PATCH 4/4] Fix test model shape

---
 .../src/main/assets/test_types_float16.ort    | Bin 1936 -> 1384 bytes
 .../e2e/src/test_types_float16.ort            | Bin 1936 -> 1384 bytes
 2 files changed, 0 insertions(+), 0 deletions(-)

diff --git a/js/react_native/e2e/android/app/src/main/assets/test_types_float16.ort b/js/react_native/e2e/android/app/src/main/assets/test_types_float16.ort
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GIT binary patch
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