[perf] Start writing subset benchmarks.
diff --git a/perf/meson.build b/perf/meson.build
index 084b902..e7681bf 100644
--- a/perf/meson.build
+++ b/perf/meson.build
@@ -40,3 +40,13 @@
   link_with: [libharfbuzz],
   install: false,
 ), workdir: meson.current_source_dir() / '..', timeout: 100)
+
+benchmark('benchmark-subset', executable('benchmark-subset', 'benchmark-subset.cc',
+  dependencies: [
+    google_benchmark_dep,
+  ],
+  cpp_args: [],
+  include_directories: [incconfig, incsrc],
+  link_with: [libharfbuzz, libharfbuzz_subset],
+  install: false,
+), workdir: meson.current_source_dir() / '..', timeout: 100)