From b8ffc16f2dfe97684533d75179f8cdd97c65b58d Mon Sep 17 00:00:00 2001
From: Milos Kotlar <kotlarmilos@users.noreply.github.com>
Date: Fri, 29 May 2026 14:51:26 +0200
Subject: [PATCH] Switch iOS device legs in runtime.yml to iossimulator_arm64

The three ios_arm64 (device) library-test legs in runtime.yml currently
target the osx.15.amd64.iphone.open Helix queue, which is failing to
enumerate devices (issue #125135).

Temporarily switch the Mono Full-AOT smoke, NativeAOT smoke, and CoreCLR
smoke legs from ios_arm64 to iossimulator_arm64 so the main runtime
pipeline keeps producing iOS test signal while the device queue is being
fixed. Build args are left intact so the change is trivial to revert.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 eng/pipelines/runtime.yml | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/eng/pipelines/runtime.yml b/eng/pipelines/runtime.yml
index 6c3951315d1fcb..420b8fc7bd044f 100644
--- a/eng/pipelines/runtime.yml
+++ b/eng/pipelines/runtime.yml
@@ -1149,8 +1149,10 @@ extends:
                     eq(variables['isRollingBuild'], true))
 
       #
-      # iOS devices - Full AOT + AggressiveTrimming to reduce size
+      # iOS simulators - Full AOT + AggressiveTrimming to reduce size
       # Build the whole product using Mono and run libraries tests
+      # Temporarily switched from ios_arm64 (devices) to iossimulator_arm64 due to
+      # device queue infrastructure failure: https://github.com/dotnet/runtime/issues/125135
       #
       - template: /eng/pipelines/common/platform-matrix.yml
         parameters:
@@ -1159,7 +1161,7 @@ extends:
           buildConfig: Release
           runtimeFlavor: mono
           platforms:
-            - ios_arm64
+            - iossimulator_arm64
           variables:
             # map dependencies variables to local variables
             - name: librariesContainsChange
@@ -1195,8 +1197,10 @@ extends:
                     eq(variables['isRollingBuild'], true))
 
       #
-      # iOS devices
+      # iOS simulators
       # Build the whole product using Native AOT and run libraries tests
+      # Temporarily switched from ios_arm64 (devices) to iossimulator_arm64 due to
+      # device queue infrastructure failure: https://github.com/dotnet/runtime/issues/125135
       #
       - template: /eng/pipelines/common/platform-matrix.yml
         parameters:
@@ -1205,7 +1209,7 @@ extends:
           buildConfig: Release
           runtimeFlavor: coreclr
           platforms:
-            - ios_arm64
+            - iossimulator_arm64
           variables:
             # map dependencies variables to local variables
             - name: librariesContainsChange
@@ -1238,8 +1242,10 @@ extends:
                     eq(variables['isRollingBuild'], true))
 
       #
-      # iOS devices
+      # iOS simulators
       # Build the whole product using CoreCLR and run libraries tests
+      # Temporarily switched from ios_arm64 (devices) to iossimulator_arm64 due to
+      # device queue infrastructure failure: https://github.com/dotnet/runtime/issues/125135
       #
       - template: /eng/pipelines/common/platform-matrix.yml
         parameters:
@@ -1248,7 +1254,7 @@ extends:
           buildConfig: Release
           runtimeFlavor: coreclr
           platforms:
-            - ios_arm64
+            - iossimulator_arm64
           variables:
             # map dependencies variables to local variables
             - name: librariesContainsChange