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-rw-r--r--tools/perf/tests/workloads/inlineloop.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/tools/perf/tests/workloads/inlineloop.c b/tools/perf/tests/workloads/inlineloop.c
new file mode 100644
index 000000000000..bc82dfc7c410
--- /dev/null
+++ b/tools/perf/tests/workloads/inlineloop.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <pthread.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <unistd.h>
+#include <linux/compiler.h>
+#include "../tests.h"
+
+static volatile int a;
+static volatile sig_atomic_t done;
+
+static void sighandler(int sig __maybe_unused)
+{
+ done = 1;
+}
+
+static inline void __attribute__((always_inline)) leaf(int b)
+{
+again:
+ a += b;
+ if (!done)
+ goto again;
+}
+
+static inline void __attribute__((always_inline)) middle(int b)
+{
+ leaf(b);
+}
+
+static noinline void parent(int b)
+{
+ middle(b);
+}
+
+static int inlineloop(int argc, const char **argv)
+{
+ int sec = 1;
+
+ pthread_setname_np(pthread_self(), "perf-inlineloop");
+ if (argc > 0)
+ sec = atoi(argv[0]);
+
+ signal(SIGINT, sighandler);
+ signal(SIGALRM, sighandler);
+ alarm(sec);
+
+ parent(sec);
+
+ return 0;
+}
+
+DEFINE_WORKLOAD(inlineloop);