CI (code coverage): run some tests in serial

Author: DilumAluthge

.buildkite/0_webui.yml

@@ -21,4 +21,4 @@ steps:
           # verifies the treehash of the pipeline itself and the inputs listed in `inputs`
           signed_pipelines:
             - pipeline: .buildkite/signed_pipeline_test.yml
-              signature: "U2FsdGVkX18aZgryp6AJTArgD2uOnVWyFFGVOP5qsY4WbGQ/LVAcYiMEp9cweV+2iht+vmEF949CuuGTeQPA1fKlhPwkG3nZ688752DUB6en9oM2nuL31NoDKWHhpygZ"
+              signature: "U2FsdGVkX18WegQJwFlZTNyNUdfVPq8MbBwk0Rx2jACUYnV00pS5EI6dqEB5O0/c04VDzwtFtYnC72CrJpmf6orX8l+DPaYIQdXtjDcquKhkTlvLDIq0ZejZ7jCQm6+s"

.buildkite/coverage-linux64/0_webui.yml

@@ -13,4 +13,4 @@ steps:
           # verifies the treehash of the pipeline itself and the inputs listed in `inputs`
           signed_pipelines:
             - pipeline: .buildkite/coverage-linux64/pipeline.yml
-              signature: "U2FsdGVkX18eQWpd3hMYLO5Kd+6K+oBoLk1I6J3qIw7lc6g5/jaeWyq/wralosZCfTzyjS4NstNKFvhQf3KDPEBVElipNvTxoWOjVLRVOrfBqqvTkQN4xVosY/r026Gy"
+              signature: "U2FsdGVkX1/18TqRN/VWuX0JJAZZ+iy5hVtrjBXr60JchjD9LUpZ0GGY1JUnhcOmsOl7snLiO7kEv6F2b651qF+ZOCsc+AsFr9+Medxlfr6WL34qsx3sWrCjYRy4L0cZ"

.buildkite/coverage-linux64/pipeline.yml

@@ -31,8 +31,17 @@ steps:
       # this is necessary to make sure that the LibGit2 tests passes
       git config --global init.defaultBranch master
 
-      echo "--- Run Julia tests with code coverage enabled"
-      # Run the actual tests
+      echo "--- Run some Julia tests in serial"
+      ./julia --code-coverage=all --sysimage-native-code=no test/compiler/codegen.jl
+      ./julia --code-coverage=all --sysimage-native-code=no test/compiler/contextual.jl
+      ./julia --code-coverage=all --sysimage-native-code=no test/compiler/inference.jl
+      ./julia --code-coverage=all --sysimage-native-code=no test/compiler/inline.jl
+      ./julia --code-coverage=all --sysimage-native-code=no test/compiler/interpreter_exec.jl
+      ./julia --code-coverage=all --sysimage-native-code=no test/compiler/irpasses.jl
+      ./julia --code-coverage=all --sysimage-native-code=no test/compiler/ssair.jl
+      ./julia --code-coverage=all --sysimage-native-code=no test/compiler/validation.jl
+
+      echo "--- Run Julia tests in parallel with code coverage enabled"
       ./julia --code-coverage=all --sysimage-native-code=no .buildkite/coverage-linux64/run_tests_base.jl
 
       echo "--- Process and upload coverage information"