From 3a917e49fb09e0e6542370bfbcf13d64c4115d1e Mon Sep 17 00:00:00 2001
From: Wanming Lin <wanming.lin@intel.com>
Date: Tue, 25 Jun 2024 00:52:12 +0800
Subject: [PATCH] [WebNN EP] Support 4 more ops for TFLite backend (#21134)

Recently WebNN TFLite backend supports gelu, expand, softsign,
reciprocal.
---
 js/web/docs/webnn-operators.md                     | 8 ++++----
 onnxruntime/core/providers/webnn/builders/helper.h | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/js/web/docs/webnn-operators.md b/js/web/docs/webnn-operators.md
index 508f85377a3a..a49759b9a93c 100644
--- a/js/web/docs/webnn-operators.md
+++ b/js/web/docs/webnn-operators.md
@@ -29,11 +29,11 @@ operators and the supported opset domain/versions in **WebNN EP** by ONNX Runtim
 | Equal | ai.onnx(7-10, 11-12, 13-18, 19+) | equal | ✓ | ✓ | |
 | Erf | ai.onnx(7-9, 10-12, 13+) | erf | ✗ | ✓ | |
 | Exp | ai.onnx(7-12, 13+) | exp | ✓ | ✓ | |
-| Expand | ai.onnx(8-12, 13+) | expand | ✗ | ✓ | 'shape' input should be a constant |
+| Expand | ai.onnx(8-12, 13+) | expand | ✓ | ✓ | 'shape' input should be a constant |
 | Flatten | ai.onnx(7-8, 9-10, 11-12, 13-20, 21+) | reshape | ✓ | ✓ | |
 | Floor | ai.onnx(7-12, 13+) | floor | ✓ | ✓ | |
 | Gather | ai.onnx(7-10, 11-12, 13+) | gather | ✓ | ✓ | |
-| Gelu | ai.onnx(20+) | gelu | ✗ | ✓ | |
+| Gelu | ai.onnx(20+) | gelu | ✓ | ✓ | |
 | Gemm | ai.onnx(7-8, 9-10, 11-12, 13+) | gemm | ✓ | ✓ | Only supports 1-D 'C' input |
 | GlobalAveragePool | ai.onnx(7+) | averagePool2d | ✓ | ✓ | Only supports 4-D input |
 | GlobalMaxPool | ai.onnx(7+) | maxPool2d | ✓ | ✓ | Only supports 4-D input |
@@ -60,7 +60,7 @@ operators and the supported opset domain/versions in **WebNN EP** by ONNX Runtim
 | Pad | ai.onnx(7-10, 11-12, 13-17, 18, 19-20, 21+) | pad | ✓ | ✓ | modes == 'wrap' is not supported |
 | Pow | ai.onnx(7-11, 12, 13-14, 15+) | pow | ✓ | ✓ | |
 | PRelu | ai.onnx(7-8, 9-15, 16+) | prelu | ✓ | ✓ | WebNN CPU backend restricts the last dimension of input and slope to be same (Chromium issue: https://issues.chromium.org/issues/335517470) |
-| Reciprocal | ai.onnx(7-12, 13+) | reciprocal | ✗ | ✓ | |
+| Reciprocal | ai.onnx(7-12, 13+) | reciprocal | ✓ | ✓ | |
 | ReduceL1 | ai.onnx(7-10, 11-12, 13-17, 18+) | reduceL1 | ✗ | ✓ | Input 'axes' if present should be a constant |
 | ReduceL2 | ai.onnx(7-10, 11-12, 13-17, 18+) | reduceL2 | ✗ | ✓ | Input 'axes' if present should be a constant |
 | ReduceLogSum| ai.onnx(7-10, 11-12, 13-17, 18+) | reduceLogSum| ✗ | ✓ | Input 'axes' if present should be a constant |
@@ -77,7 +77,7 @@ operators and the supported opset domain/versions in **WebNN EP** by ONNX Runtim
 | Shape | ai.onnx(7-12, 13-14, 15-18, 19-20, 21+) | slice | ✓ | ✓ | |
 | Sigmoid | ai.onnx(7-12, 13+) | sigmoid | ✓ | ✓ | |
 | Softplus | ai.onnx(7+) | softplus | ✓ | ✓ | |
-| Softsign | ai.onnx(7+) | softsign | ✗ | ✓ | |
+| Softsign | ai.onnx(7+) | softsign | ✓ | ✓ | |
 | Sin | ai.onnx(7+) | sin | ✓ | ✓ | |
 | Slice | ai.onnx(7-9, 10, 11-12, 13+) | slice | ✓ | ✓ | Input 'starts', 'ends', 'axes', and 'steps' if present must be a constant, only supports 'steps' value 1 |
 | Softmax | ai.onnx(7-10, 11-12, 13+) | softmax | ✓ | ✓ | |
diff --git a/onnxruntime/core/providers/webnn/builders/helper.h b/onnxruntime/core/providers/webnn/builders/helper.h
index 7240fa37d9cc..401d2eaa0912 100644
--- a/onnxruntime/core/providers/webnn/builders/helper.h
+++ b/onnxruntime/core/providers/webnn/builders/helper.h
@@ -176,11 +176,11 @@ static const InlinedHashMap<std::string, WebnnOpInfo> op_map = {
     {"Equal", {"equal", true}},
     {"Erf", {"erf", false}},
     {"Exp", {"exp", true}},
-    {"Expand", {"expand", false}},
+    {"Expand", {"expand", true}},
     {"Flatten", {"reshape", true}},
     {"Floor", {"floor", true}},
     {"Gather", {"gather", true}},
-    {"Gelu", {"gelu", false}},
+    {"Gelu", {"gelu", true}},
     {"Gemm", {"gemm", true}},
     {"GlobalAveragePool", {"averagePool2d", true}},
     {"GlobalMaxPool", {"maxPool2d", true}},
@@ -208,7 +208,7 @@ static const InlinedHashMap<std::string, WebnnOpInfo> op_map = {
     {"Pad", {"pad", true}},
     {"Pow", {"pow", true}},
     {"PRelu", {"prelu", true}},
-    {"Reciprocal", {"reciprocal", false}},
+    {"Reciprocal", {"reciprocal", true}},
     {"ReduceL1", {"reduceL1", false}},
     {"ReduceL2", {"reduceL2", false}},
     {"ReduceLogSum", {"reduceLogSum", false}},
@@ -225,7 +225,7 @@ static const InlinedHashMap<std::string, WebnnOpInfo> op_map = {
     {"Shape", {"slice", true}},
     {"Sigmoid", {"sigmoid", true}},
     {"Softplus", {"softplus", true}},
-    {"Softsign", {"softsign", false}},
+    {"Softsign", {"softsign", true}},
     {"Sin", {"sin", true}},
     {"Slice", {"slice", true}},
     {"Softmax", {"softmax", true}},