From c5f646a16bc9fd47f2fa22829e6331e2b48f6b67 Mon Sep 17 00:00:00 2001
From: Tanner Gooding <tagoo@outlook.com>
Date: Fri, 17 Jul 2026 07:39:00 -0700
Subject: [PATCH] Add wasm HardwareIntrinsics PR pipeline

The wasm HardwareIntrinsics tests only compile when TargetArchitecture is
wasm, so no PR-triggered intrinsics pipeline exercised them -- letting build
breaks like #130962 slip through. Mirror hardware-intrinsics-arm64.yml with a
browser_wasm leg filtered on src/coreclr/jit/*wasm*, building the tests for
coverage only (browser/V8 can't run them yet).

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
---
 .../coreclr/hardware-intrinsics-wasm.yml      | 28 +++++++++++++
 .../jit-hardware-intrinsics-wasm.yml          | 39 +++++++++++++++++++
 2 files changed, 67 insertions(+)
 create mode 100644 eng/pipelines/coreclr/hardware-intrinsics-wasm.yml
 create mode 100644 eng/pipelines/coreclr/templates/jit-hardware-intrinsics-wasm.yml

diff --git a/eng/pipelines/coreclr/hardware-intrinsics-wasm.yml b/eng/pipelines/coreclr/hardware-intrinsics-wasm.yml
new file mode 100644
index 00000000000000..141684261b9e7e
--- /dev/null
+++ b/eng/pipelines/coreclr/hardware-intrinsics-wasm.yml
@@ -0,0 +1,28 @@
+trigger: none
+pr:
+  branches:
+    include:
+    - main
+  paths:
+    include:
+    - eng/pipelines/coreclr/hardware-intrinsics-wasm.yml
+    - eng/pipelines/coreclr/templates/jit-hardware-intrinsics-wasm.yml
+    - src/coreclr/jit/*wasm*
+    - src/tests/JIT/HardwareIntrinsics/Wasm/**
+
+variables:
+  - template: /eng/pipelines/common/variables.yml
+  - template: /eng/pipelines/helix-platforms.yml
+
+extends:
+  template:  /eng/pipelines/common/templates/pipeline-with-resources.yml
+  parameters:
+    isOfficialBuild: false
+    stages:
+    - stage: Build
+      jobs:
+      - template: /eng/pipelines/coreclr/templates/jit-hardware-intrinsics-wasm.yml
+        parameters:
+          platforms:
+            - browser_wasm
+          testBuildArgs: '/p:EnableWasmHWIntrinsicsTests=true -tree:JIT/HardwareIntrinsics/Wasm'
diff --git a/eng/pipelines/coreclr/templates/jit-hardware-intrinsics-wasm.yml b/eng/pipelines/coreclr/templates/jit-hardware-intrinsics-wasm.yml
new file mode 100644
index 00000000000000..6f93f83e3ac603
--- /dev/null
+++ b/eng/pipelines/coreclr/templates/jit-hardware-intrinsics-wasm.yml
@@ -0,0 +1,39 @@
+parameters:
+  - name: platforms
+    type: object
+  - name: testBuildArgs
+    type: string
+
+jobs:
+# Build CoreCLR + libraries for wasm and compile the wasm HardwareIntrinsics
+# tests. Browser/V8 can't execute these tests yet (wasm SIMD support is
+# incomplete), so this is build-only coverage -- sendToHelix is false. See the
+# note in build-runtime-tests-and-send-to-helix.yml.
+- template: /eng/pipelines/common/platform-matrix.yml
+  parameters:
+    jobTemplate: /eng/pipelines/common/global-build-job.yml
+    helixQueuesTemplate: /eng/pipelines/coreclr/templates/helix-queues-setup.yml
+    buildConfig: Release
+    runtimeFlavor: coreclr
+    platforms: ${{ parameters.platforms }}
+    variables:
+      - name: timeoutPerTestInMinutes
+        value: 60
+      - name: timeoutPerTestCollectionInMinutes
+        value: 180
+    jobParameters:
+      testGroup: outerloop
+      nameSuffix: CoreCLR
+      buildArgs: -s clr+libs+packs -c $(_BuildConfig) /p:TestAssemblies=false
+      timeoutInMinutes: 180
+      postBuildSteps:
+        - template: /eng/pipelines/common/templates/runtimes/build-runtime-tests-and-send-to-helix.yml
+          parameters:
+            creator: dotnet-bot
+            testBuildArgs: ${{ parameters.testBuildArgs }}
+            testRunNamePrefixSuffix: CoreCLR
+            sendToHelix: false
+      extraVariablesTemplates:
+        - template: /eng/pipelines/common/templates/runtimes/test-variables.yml
+          parameters:
+            testGroup: outerloop