Init repo.

* Init tmt
* Add sanity test
* Add gating fmf plan

.fmf/version

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+1

build-gating.fmf

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+#
+# Build/PR gating tests for libomp
+#
+# Compatible with various LLVM distributions:
+#
+#   * Fedora (ursine packages)
+#   * Centos 9 stream (ursine packages)
+#   * RHEL-9 (ursine packages)
+#   * RHEL-8 (Red Hat module)
+#   * RHEL-7 (software collection)
+#
+
+summary: libomp tests for build/PR gating
+adjust:
+  - because: "Plan to be ran when either executed locally, or executed by CI system to gate a build or PR."
+    when: >-
+      trigger is defined
+      and trigger != commit
+      and trigger != build
+    enabled: false
+
+  - because: "When testing SCL-ized LLVM, the collection must be enabled first"
+    environment+:
+      WITH_SCL: "scl enable llvm-toolset-13.0 rust-toolset-1.58"
+    when: "collection == llvm-toolset-13.0"
+  - because: "When testing SCL-ized LLVM, the collection must be enabled first"
+    environment+:
+      WITH_SCL: "scl enable llvm-toolset-14.0 rust-toolset-1.62"
+    when: "collection == llvm-toolset-14.0"
+
+discover:
+    - name: libomp-tests
+      how: fmf
+execute:
+    how: tmt
+provision:
+  hardware:
+    memory: ">= 4 GiB"

sanity/main.fmf

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+summary: libomp sanity test
+test: "$WITH_SCL ./test.sh"
+framework: shell
+
+adjust:
+  - because: "libomp is not supported in s390x"
+    when: arch == s390x
+    enabled: false
+
+  # Common requirements when LLVM is not SCL-ized
+  - require:
+      - clang
+      - clang-libs
+      - libomp
+      - libomp-devel
+    when: "collection is not defined"
+
+  # Requirements for SCL-ized LLVM
+  - require:
+      - llvm-toolset-13.0-clang
+      - llvm-toolset-13.0-clang-libs
+      - llvm-toolset-13.0-libomp
+      - llvm-toolset-13.0-libomp-devel
+    when: "collection == llvm-toolset-13.0"
+  - require:
+      - llvm-toolset-14.0-clang
+      - llvm-toolset-14.0-clang-libs
+      - llvm-toolset-14.0-libomp
+      - llvm-toolset-14.0-libomp-devel
+    when: "collection == llvm-toolset-14.0"

sanity/openmp-compile-link-test.c

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+#include <omp.h>
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+  int nthreads = omp_get_num_threads();
+  printf("Num Threads: %d\n", nthreads);
+  return 0;
+}

sanity/test.sh

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+#!/bin/bash
+
+set -exo pipefail
+
+clang -fopenmp openmp-compile-link-test.c
+
+./a.out | grep "Num Threads: 1"