Test hot/cold splitting in runtime-coreclr crossgen2 pipeline (#91217)

Adds job to runtime-coreclr crossgen2 that runs the innerloop test group
with hot/cold splitting enabled in Crossgen2.

eng/pipelines/common/templates/runtimes/run-test-job.yml

@@ -7,6 +7,7 @@ parameters:
   testGroup: ''
   crossBuild: false
   readyToRun: false
+  hotColdSplitting: false
   liveLibrariesBuildConfig: ''
   compositeBuildMode: false
   useCodeFlowEnforcement: ''
@@ -119,6 +120,9 @@ jobs:
           value: 'composite'
         - name: LogNamePrefix
           value: TestRunLogs_R2R_CG2_Composite
+      - ${{ if eq(parameters.hotColdSplitting, true) }}:
+        - name: LogNamePrefix
+          value: TestRunLogs_R2R_CG2_HotColdSplitting
 
     - name: testTreeFilterArg
       value: ''
@@ -349,6 +353,7 @@ jobs:
         compositeBuildMode: ${{ parameters.compositeBuildMode }}
         runInUnloadableContext: ${{ parameters.runInUnloadableContext }}
         tieringTest: ${{ parameters.tieringTest }}
+        hotColdSplitting: ${{ parameters.hotColdSplitting }}
 
         ${{ if eq(variables['System.TeamProject'], 'internal') }}:
           # Access token variable for internal project from the

eng/pipelines/common/templates/runtimes/send-to-helix-step.yml

@@ -22,6 +22,7 @@ parameters:
   helixProjectArguments: ''
   runInUnloadableContext: ''
   tieringTest: ''
+  hotColdSplitting: ''
   nativeAotTest: ''
   longRunningGcTests: ''
   gcSimulatorTests: ''
@@ -55,6 +56,7 @@ steps:
       _CompositeBuildMode: ${{ parameters.compositeBuildMode }}
       _RunInUnloadableContext: ${{ parameters.runInUnloadableContext }}
       _TieringTest: ${{ parameters.tieringTest }}
+      _HotColdSplitting: ${{ parameters.hotColdSplitting }}
       _NativeAotTest: ${{ parameters.nativeAotTest }}
       _LongRunningGcTests: ${{ parameters.longRunningGcTests }}
       _GcSimulatorTests: ${{ parameters.gcSimulatorTests }}

eng/pipelines/coreclr/crossgen2.yml

@@ -56,3 +56,21 @@ extends:
             readyToRun: true
             displayNameArgs: R2R_CG2
             liveLibrariesBuildConfig: Release
+
+      # Run pri0 tests with hot/cold splitting enabled (only supported on x64 at the moment)
+      # TODO: test on arm64 once supported
+      - template: /eng/pipelines/common/platform-matrix.yml
+        parameters:
+          jobTemplate: /eng/pipelines/common/templates/runtimes/run-test-job.yml
+          helixQueuesTemplate: /eng/pipelines/coreclr/templates/helix-queues-setup.yml
+          buildConfig: checked
+          platforms:
+          - linux_x64
+          - osx_x64
+          - windows_x64
+          jobParameters:
+            testGroup: innerloop
+            readyToRun: true
+            hotColdSplitting: true
+            displayNameArgs: R2R_CG2_HotColdSplitting
+            liveLibrariesBuildConfig: Release

src/tests/Common/CLRTest.CrossGen.targets

@@ -111,6 +111,9 @@ if [ ! -z ${RunCrossGen2+x} ]%3B then
             echo --synthesize-random-mibc>>$__ResponseFile
             echo --embed-pgo-data>>$__ResponseFile
         fi
+        if [ ! -z ${HotColdSplitting+x} ]%3B then
+            echo --hot-cold-splitting>>$__ResponseFile
+        fi
         echo --targetarch:$(TargetArchitecture)>>$__ResponseFile
         echo --targetos:$(TargetOS)>>$__ResponseFile
 
@@ -257,6 +260,9 @@ if defined RunCrossGen2 (
         echo --synthesize-random-mibc>>!__ResponseFile!
         echo --embed-pgo-data>>!__ResponseFile!
     )
+    if defined HotColdSplitting (
+        echo --hot-cold-splitting>>!__ResponseFile!
+    )
     echo -r:!CORE_ROOT!\System.*.dll>>!__ResponseFile!
     echo -r:!CORE_ROOT!\Microsoft.*.dll>>!__ResponseFile!
     echo -r:!CORE_ROOT!\xunit.*.dll>>!__ResponseFile!

src/tests/Common/helixpublishwitharcade.proj

@@ -40,6 +40,7 @@
     <_GcSimulatorTests>false</_GcSimulatorTests>
     <_RunInUnloadableContext>false</_RunInUnloadableContext>
     <_TieringTest>false</_TieringTest>
+    <_HotColdSplitting>false</_HotColdSplitting>
     <_NativeAotTest>false</_NativeAotTest>
     <_TimeoutPerTestCollectionInMinutes>123</_TimeoutPerTestCollectionInMinutes>
     <_TimeoutPerTestInMinutes>234</_TimeoutPerTestInMinutes>
@@ -99,6 +100,7 @@
         GcSimulatorTests=$(_GcSimulatorTests);
         RunInUnloadableContext=$(_RunInUnloadableContext);
         TieringTest=$(_TieringTest);
+        HotColdSplitting=$(_HotColdSplitting);
         NativeAotTest=$(_NativeAotTest);
         TimeoutPerTestCollectionInMinutes=$(_TimeoutPerTestCollectionInMinutes);
         TimeoutPerTestInMinutes=$(_TimeoutPerTestInMinutes);
@@ -668,6 +670,7 @@
     <HelixPreCommand Include="set RunningGCSimulatorTests=1" Condition=" '$(GcSimulatorTests)' == 'true' " />
     <HelixPreCommand Include="set RunInUnloadableContext=1" Condition=" '$(RunInUnloadableContext)' == 'true' " />
     <HelixPreCommand Include="set RunTieringTest=1" Condition=" '$(TieringTest)' == 'true' " />
+    <HelixPreCommand Include="set HotColdSplitting=1" Condition=" '$(HotColdSplitting)' == 'true' " />
     <HelixPreCommand Include="set CLRCustomTestLauncher=%HELIX_CORRELATION_PAYLOAD%\runincontext.cmd" Condition=" '$(RunInUnloadableContext)' == 'true' " />
     <HelixPreCommand Include="set CLRCustomTestLauncher=%HELIX_CORRELATION_PAYLOAD%\tieringtest.cmd" Condition=" '$(TieringTest)' == 'true' " />
     <HelixPreCommand Include="set CLRCustomTestLauncher=%HELIX_CORRELATION_PAYLOAD%\nativeaottest.cmd" Condition=" '$(NativeAotTest)' == 'true' " />
@@ -720,6 +723,7 @@
     <HelixPreCommand Include="export RunningGCSimulatorTests=1" Condition=" '$(GcSimulatorTests)' == 'true' " />
     <HelixPreCommand Include="export RunInUnloadableContext=1" Condition=" '$(RunInUnloadableContext)' == 'true' " />
     <HelixPreCommand Include="export RunTieringTest=1" Condition=" '$(TieringTest)' == 'true' " />
+    <HelixPreCommand Include="export HotColdSplitting=1" Condition=" '$(HotColdSplitting)' == 'true' " />
     <HelixPreCommand Include="export CLRCustomTestLauncher=$HELIX_CORRELATION_PAYLOAD/runincontext.sh" Condition=" '$(RunInUnloadableContext)' == 'true' " />
     <HelixPreCommand Include="export CLRCustomTestLauncher=$HELIX_CORRELATION_PAYLOAD/tieringtest.sh" Condition=" '$(TieringTest)' == 'true' " />
     <HelixPreCommand Include="export CLRCustomTestLauncher=$HELIX_CORRELATION_PAYLOAD/nativeaottest.sh" Condition=" '$(NativeAotTest)' == 'true' " />