[libc++][ci] Add a job to run the vanilla configuration on Apple

Previously, we'd only have jobs testing the Apple cache on Apple platforms,
but libc++ should also work out-of-the-box.

Author: ldionne

libcxx/utils/ci/buildkite-pipeline.yml

@@ -16,65 +16,70 @@
 
 steps:
   - label: "C++03"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-cxx03 | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-cxx03 | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "C++11"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-cxx11 | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-cxx11 | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "C++14"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-cxx14 | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-cxx14 | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "C++17"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-cxx17 | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-cxx17 | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "C++20"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-cxx2a | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-cxx2a | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "-fno-exceptions"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-noexceptions | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-noexceptions | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "GCC/C++20"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-gcc | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-gcc | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "ASAN"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-asan | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-asan | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "TSAN"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-tsan | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-tsan | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "UBSAN"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-ubsan | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-ubsan | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "With LLVM's libunwind"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-with_llvm_unwinder | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-with_llvm_unwinder | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
   - label: "Single-threaded"
-    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-ubuntu-singlethreaded | libcxx/utils/ci/phabricator-report"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-singlethreaded | libcxx/utils/ci/phabricator-report"
     agents:
       queue: "libcxx-builders"
 
+  - label: "MacOS C++20"
+    command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh generic-cxx2a | libcxx/utils/ci/phabricator-report"
+    agents:
+      queue: "libcxx-macos-builders"
+
   # Build with the configuration we use to generate libc++.dylib on Apple platforms
   - label: "Apple system"
     command: "set -o pipefail && libcxx/utils/ci/run-buildbot.sh x86_64-apple-system | libcxx/utils/ci/phabricator-report"

libcxx/utils/ci/run-buildbot.sh

@@ -18,83 +18,83 @@ args+=("-DLLVM_ENABLE_PROJECTS=libcxx;libunwind;libcxxabi")
 args+=("-DLIBCXX_CXX_ABI=libcxxabi")
 
 case "${BUILDER}" in
-x86_64-ubuntu-cxx03)
+generic-cxx03)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported --param=std=c++03")
 ;;
-x86_64-ubuntu-cxx11)
+generic-cxx11)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported --param=std=c++11")
 ;;
-x86_64-ubuntu-cxx14)
+generic-cxx14)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported --param=std=c++14")
 ;;
-x86_64-ubuntu-cxx17)
+generic-cxx17)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported --param=std=c++17")
 ;;
-x86_64-ubuntu-cxx2a)
+generic-cxx2a)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported --param=std=c++2a")
 ;;
-x86_64-ubuntu-noexceptions)
+generic-noexceptions)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported")
     args+=("-DLIBCXX_ENABLE_EXCEPTIONS=OFF")
     args+=("-DLIBCXXABI_ENABLE_EXCEPTIONS=OFF")
 ;;
-x86_64-ubuntu-32bit)
+generic-32bit)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported")
     args+=("-DLLVM_BUILD_32_BITS=ON")
 ;;
-x86_64-ubuntu-gcc)
+generic-gcc)
     export CC=gcc
     export CXX=g++
     # FIXME: Re-enable experimental testing on GCC. GCC cares about the order
     #        in which we link -lc++experimental, which causes issues.
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported --param enable_experimental=False")
 ;;
-x86_64-ubuntu-asan)
+generic-asan)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_USE_SANITIZER=Address")
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported")
 ;;
-x86_64-ubuntu-msan)
+generic-msan)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_USE_SANITIZER=MemoryWithOrigins")
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported")
 ;;
-x86_64-ubuntu-tsan)
+generic-tsan)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_USE_SANITIZER=Thread")
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported")
 ;;
-x86_64-ubuntu-ubsan)
+generic-ubsan)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_USE_SANITIZER=Undefined")
     args+=("-DLIBCXX_ABI_UNSTABLE=ON")
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported")
 ;;
-x86_64-ubuntu-with_llvm_unwinder)
+generic-with_llvm_unwinder)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported")
     args+=("-DLIBCXXABI_USE_LLVM_UNWINDER=ON")
 ;;
-x86_64-ubuntu-singlethreaded)
+generic-singlethreaded)
     export CC=clang
     export CXX=clang++
     args+=("-DLLVM_LIT_ARGS=-sv --show-unsupported")