condition upload to lavapipe

Author: joaosaffran-zz

azure-pipelines.yml

@@ -20,7 +20,29 @@ resources:
 - repo: self
 
 stages:
+
+- stage: OffloadGate
+  dependsOn: []
+  jobs:
+  - job: gate
+    pool:
+      vmImage: ubuntu-latest
+    steps:
+    - checkout: none
+    - bash: |
+        run=true
+        if [ "$(Build.Reason)" = "PullRequest" ]; then
+          run=false
+          labels=$(curl -sf "https://api.github.com/repos/$(Build.Repository.Name)/issues/$(System.PullRequest.PullRequestNumber)/labels" | python3 -c "import sys, json; print(' '.join(l['name'] for l in json.load(sys.stdin)))")
+          for l in $labels; do [ "$l" = "run-offload-tests" ] && run=true; done
+        fi
+        echo "Build.Reason=$(Build.Reason) run=$run"
+        echo "##vso[task.setvariable variable=run;isOutput=true]$run"
+      name: decide
+
 - stage: Build
+  dependsOn:
+    - OffloadGate
   jobs:
   - job: Windows
     timeoutInMinutes: 180
@@ -32,6 +54,7 @@ stages:
       HLSL_SRC_DIR: '$(Build.SourcesDirectory)'
       HLSL_BLD_DIR: '$(Agent.BuildDirectory)'
       platform: x64
+      uploadArtifact: $[ stageDependencies.OffloadGate.gate.outputs['decide.run'] ]
 
     strategy:
       matrix:
@@ -105,7 +128,7 @@ stages:
       condition: and(succeeded(), ne(variables['artifactName'], ''))
     - task: PublishPipelineArtifact@1
       displayName: 'Publish DXC binaries'
-      condition: and(succeeded(), ne(variables['artifactName'], ''))
+      condition: and(succeeded(), ne(variables['artifactName'], ''), eq(variables['uploadArtifact'], 'true'))
       inputs:
         targetPath: '$(Build.ArtifactStagingDirectory)\dxc'
         artifact: '$(artifactName)'
@@ -211,25 +234,6 @@ stages:
         testResultsFiles: '**/testresults.xunit.xml'
       condition: succeededOrFailed()
 
-- stage: OffloadGate
-  dependsOn: []
-  jobs:
-  - job: gate
-    pool:
-      vmImage: ubuntu-latest
-    steps:
-    - checkout: none
-    - bash: |
-        run=true
-        if [ "$(Build.Reason)" = "PullRequest" ]; then
-          run=false
-          labels=$(curl -sf "https://api.github.com/repos/$(Build.Repository.Name)/issues/$(System.PullRequest.PullRequestNumber)/labels" | python3 -c "import sys, json; print(' '.join(l['name'] for l in json.load(sys.stdin)))")
-          for l in $labels; do [ "$l" = "run-offload-tests" ] && run=true; done
-        fi
-        echo "Build.Reason=$(Build.Reason) run=$run"
-        echo "##vso[task.setvariable variable=run;isOutput=true]$run"
-      name: decide
-
 - stage: OffloadTests
   displayName: 'Offload tests'
   dependsOn: