1 # Tests for compatibility between llvm-cov and gcov. These work by
2 # comparing llvm-cov against reference outputs generated by gcov 4.2.
4 # "cd" and globbing are unsupported in lit internal runner.
10 RUN: cp %p/Inputs/test* .
12 # Basic behaviour with no flags
13 RUN: llvm-cov test.c | diff -u test_no_options.output -
14 RUN: diff -aub test_no_options.cpp.gcov test.cpp.gcov
15 RUN: diff -aub test_no_options.h.gcov test.h.gcov
17 # Same, but specifying the object directory
18 RUN: mkdir -p %t/objdir
19 RUN: cp test.gcno test.gcda %t/objdir
20 RUN: llvm-cov -o objdir test.c | diff -u test_no_options.output -
21 RUN: diff -aub test_objdir.cpp.gcov test.cpp.gcov
22 RUN: diff -aub test_objdir.h.gcov test.h.gcov
24 # Specifying an object file
25 RUN: llvm-cov -o objdir/test.o test.c | diff -u test_no_options.output -
26 RUN: diff -aub test_objdir.cpp.gcov test.cpp.gcov
27 RUN: diff -aub test_objdir.h.gcov test.h.gcov
29 # Specifying an object file that could be ambiguous with a directory
30 RUN: llvm-cov -o objdir/test test.c | diff -u test_no_options.output -
31 RUN: diff -aub test_objdir.cpp.gcov test.cpp.gcov
32 RUN: diff -aub test_objdir.h.gcov test.h.gcov
34 # Preserve paths. This mangles the output filenames.
35 RUN: mkdir -p %t/srcdir/nested_dir
36 RUN: cp test.cpp test.h %t/srcdir
37 RUN: llvm-cov -p test_paths.cpp | diff -u test_preserve_paths.output -
38 RUN: diff -aub test_paths.cpp.gcov srcdir#nested_dir#^#test.cpp.gcov
39 RUN: diff -aub test_paths.h.gcov srcdir#nested_dir#^#test.h.gcov
41 # Don't preserve paths. Same results as preserve paths, but no mangling.
42 RUN: llvm-cov test_paths.cpp | diff -u test_no_preserve_paths.output -
43 RUN: diff -aub test_paths.cpp.gcov test.cpp.gcov
44 RUN: diff -aub test_paths.h.gcov test.h.gcov
46 # Function summaries. This changes stdout, but not the gcov files.
47 RUN: llvm-cov test.c -f | diff -u test_-f.output -
48 RUN: diff -aub test_no_options.cpp.gcov test.cpp.gcov
49 RUN: diff -aub test_no_options.h.gcov test.h.gcov
51 # All blocks. This doesn't affect stdout, only the gcov files.
52 RUN: llvm-cov test.c -a | diff -u test_no_options.output -
53 RUN: diff -aub test_-a.cpp.gcov test.cpp.gcov
54 RUN: diff -aub test_-a.h.gcov test.h.gcov
56 # Branch probabilities.
57 RUN: llvm-cov test.c -a -b | diff -u test_-b.output -
58 RUN: diff -aub test_-a_-b.cpp.gcov test.cpp.gcov
59 RUN: diff -aub test_-a_-b.h.gcov test.h.gcov
61 # Function summaries including branch probabilities.
63 # FIXME: We don't correctly handle calls when -b and -f are used
64 # together, so our output differs from gcov. Remove the 'not' from
65 # this test once this is fixed.
66 RUN: llvm-cov test.c -a -b -f | not diff -u test_-b_-f.output - >/dev/null
67 RUN: diff -aub test_-a_-b.cpp.gcov test.cpp.gcov
68 RUN: diff -aub test_-a_-b.h.gcov test.h.gcov
70 # Summarize unconditional branches too.
71 RUN: llvm-cov test.c -a -b -u | diff -u test_-b.output -
72 RUN: diff -aub test_-a_-b_-u.cpp.gcov test.cpp.gcov
73 RUN: diff -aub test_-a_-b_-u.h.gcov test.h.gcov
75 # Absolute counts for branches.
76 RUN: llvm-cov test.c -a -b -c -u | diff -u test_-b.output -
77 RUN: diff -aub test_-a_-b_-c_-u.cpp.gcov test.cpp.gcov
78 RUN: diff -aub test_-a_-b_-c_-u.h.gcov test.h.gcov
80 # Missing gcda file just gives 0 counts.
81 RUN: llvm-cov test.c -gcda=no_such_gcda_file | diff -u test_no_gcda.output -
82 RUN: diff -aub test_no_gcda.cpp.gcov test.cpp.gcov
83 RUN: diff -aub test_no_gcda.h.gcov test.h.gcov
86 RUN: not llvm-cov test.c -gcno=test_read_fail.gcno
88 # Bad file checksum on gcda.
89 RUN: not llvm-cov test.c -gcda=test_file_checksum_fail.gcda
91 # Bad function checksum on gcda
92 RUN: not llvm-cov test.c -gcda=test_func_checksum_fail.gcda
94 XFAIL: powerpc64, s390x, mips, sparc