00b86691c7
Add basic clang support in clang.cpp and test__clang() testcase. The first testcase checks if builtin clang is able to generate LLVM IR. tests/clang.c is a proxy. Real testcase resides in utils/c++/clang-test.cpp in c++ and exports C interface to perf test subsystem. Test result: $ perf test -v clang 51: builtin clang support : 51.1: Test builtin clang compile C source to IR : --- start --- test child forked, pid 13215 test child finished with 0 ---- end ---- Test builtin clang support subtest 0: Ok Committer note: Make sure you've enabled CLANG and LLVM builtin support by setting the LIBCLANGLLVM variable on the make command line, e.g.: make LIBCLANGLLVM=1 O=/tmp/build/perf -C tools/perf install-bin Otherwise you'll get this when trying to do the 'perf test' call above: # perf test clang 51: builtin clang support : Skip (not compiled in) # Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexei Starovoitov <ast@fb.com> Cc: He Kuang <hekuang@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Joe Stringer <joe@ovn.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/20161126070354.141764-11-wangnan0@huawei.com [ Removed "Test" from descriptions, redundant and already removed from all the other entries ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
43 lines
817 B
C
43 lines
817 B
C
#include "tests.h"
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#include "debug.h"
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#include "util.h"
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#include "c++/clang-c.h"
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static struct {
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int (*func)(void);
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const char *desc;
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} clang_testcase_table[] = {
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#ifdef HAVE_LIBCLANGLLVM_SUPPORT
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{
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.func = test__clang_to_IR,
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.desc = "builtin clang compile C source to IR",
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},
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#endif
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};
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int test__clang_subtest_get_nr(void)
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{
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return (int)ARRAY_SIZE(clang_testcase_table);
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}
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const char *test__clang_subtest_get_desc(int i)
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{
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if (i < 0 || i >= (int)ARRAY_SIZE(clang_testcase_table))
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return NULL;
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return clang_testcase_table[i].desc;
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}
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#ifndef HAVE_LIBCLANGLLVM_SUPPORT
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int test__clang(int i __maybe_unused)
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{
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return TEST_SKIP;
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}
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#else
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int test__clang(int i __maybe_unused)
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{
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if (i < 0 || i >= (int)ARRAY_SIZE(clang_testcase_table))
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return TEST_FAIL;
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return clang_testcase_table[i].func();
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}
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#endif
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