perf test: Convert clang tests to test cases.

Use null terminated array of test cases rather than the previous sub
test functions.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Daniel Latypov <dlatypov@google.com>
Cc: David Gow <davidgow@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20211104064208.3156807-13-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 17 insertions, 40 deletions

diff --git a/tools/perf/tests/clang.c b/tools/perf/tests/clang.c
index a499fcf37bf9..ba06a2257574 100644
--- a/tools/perf/tests/clang.c
+++ b/tools/perf/tests/clang.c
@@ -3,54 +3,31 @@
 #include "c++/clang-c.h"
 #include <linux/kernel.h>
 
-static struct {
-	int (*func)(void);
-	const char *desc;
-} clang_testcase_table[] = {
-#ifdef HAVE_LIBCLANGLLVM_SUPPORT
-	{
-		.func = test__clang_to_IR,
-		.desc = "builtin clang compile C source to IR",
-	},
-	{
-		.func = test__clang_to_obj,
-		.desc = "builtin clang compile C source to ELF object",
-	},
-#endif
-};
-
-static int test__clang_subtest_get_nr(void)
-{
-	return (int)ARRAY_SIZE(clang_testcase_table);
-}
-
-static const char *test__clang_subtest_get_desc(int i)
-{
-	if (i < 0 || i >= (int)ARRAY_SIZE(clang_testcase_table))
-		return NULL;
-	return clang_testcase_table[i].desc;
-}
-
 #ifndef HAVE_LIBCLANGLLVM_SUPPORT
-static int test__clang(struct test_suite *test __maybe_unused, int i __maybe_unused)
+static int test__clang_to_IR(struct test_suite *test __maybe_unused,
+			     int subtest __maybe_unused)
 {
 	return TEST_SKIP;
 }
-#else
-static int test__clang(struct test_suite *test __maybe_unused, int i)
+
+static int test__clang_to_obj(struct test_suite *test __maybe_unused,
+			      int subtest __maybe_unused)
 {
-	if (i < 0 || i >= (int)ARRAY_SIZE(clang_testcase_table))
-		return TEST_FAIL;
-	return clang_testcase_table[i].func();
+	return TEST_SKIP;
 }
 #endif
 
+static struct test_case clang_tests[] = {
+	TEST_CASE_REASON("builtin clang compile C source to IR", clang_to_IR,
+			 "not compiled in"),
+	TEST_CASE_REASON("builtin clang compile C source to ELF object",
+			 clang_to_obj,
+			 "not compiled in"),
+	{ .name = NULL, }
+};
+
 struct test_suite suite__clang = {
 	.desc = "builtin clang support",
-	.func = test__clang,
-	.subtest = {
-		.skip_if_fail	= true,
-		.get_nr		= test__clang_subtest_get_nr,
-		.get_desc	= test__clang_subtest_get_desc,
-	}
+	.test_cases = clang_tests,
+	.subtest = { .skip_if_fail = true, },
 };