Add generic integration test suite gating

Related: rhbz#1931719

gating.yaml

@@ -10,3 +10,9 @@ product_versions:
 decision_context: bodhi_update_push_stable
 rules:
   - !PassingTestCaseRule {test_case_name: fedora-ci.koji-build.tier0.functional}
+--- !Policy
+product_versions:
+  - rhel-9
+decision_context: osci_compose_gate
+rules:
+  - !PassingTestCaseRule {test_case_name: baseos-ci.brew-build.tier0.functional}

tests/integration-test-suite/runtest.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+usage() {
+    echo "usage `basename $0` [OPTIONS]"
+    echo "  --threads NUM       The number of threads to use for running tests."
+}
+
+thread_args=""
+repo_url=https://github.com/opencollab/llvm-toolchain-integration-test-suite
+
+while [ $# -gt 0 ]; do
+    case $1 in
+        --threads)
+            shift
+            threads="$1"
+            ;;
+        * )
+            echo "unknown option: $1"
+            echo ""
+            usage
+            exit 1
+            ;;
+    esac
+    shift
+done
+
+if [ -n "$threads" ]; then
+  thread_args="-j$threads"
+fi
+
+set -xe
+
+cd $(mktemp -d -p /var/tmp)
+git clone $repo_url
+cd llvm-toolchain-integration-test-suite
+mkdir _build && cd _build
+cmake .. -GNinja
+ninja $thread_args check

tests/tests.yml

@@ -26,6 +26,23 @@
       - redhat-rpm-config
       # Required for clang-format-diff
       - clang-tools-extra
+      # the requirements below are for the integration suite
+      - cmake
+      - llvm-devel
+      - clang
+      - clang-analyzer
+      - clang-tools-extra
+      - compiler-rt
+      - ninja-build
+      - libcxx-devel
+      - libomp-devel
+      - python-lit
+      - lld
+      - lldb
+      - git
+      - make
+      - libstdc++-static
+      - clang-devel
 
     repositories:
     - repo: "https://src.fedoraproject.org/rpms/llvm-test-suite.git"
@@ -43,3 +60,4 @@
       - fedora-flags
       - toolchains
       - clang-format-diff
+      - integration-test-suite