X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=test%2Ftools%2Fllvm-cov%2Fllvm-cov.test;h=8f57d9a189312533a204d991a461f5ebd284cefe;hb=56d05e468cdfd4ad195f264974f1b841bc4ca785;hp=e2a21e1889e32838ee74c195a6ea458212e74121;hpb=2575bc901b0a1cf1f13ff8609ca7a47a3f21ac29;p=oota-llvm.git

diff --git a/test/tools/llvm-cov/llvm-cov.test b/test/tools/llvm-cov/llvm-cov.test
index e2a21e1889e..8f57d9a1893 100644
--- a/test/tools/llvm-cov/llvm-cov.test
+++ b/test/tools/llvm-cov/llvm-cov.test
@@ -1,16 +1,107 @@
+# Tests for compatibility between llvm-cov and gcov. These work by
+# comparing llvm-cov against reference outputs generated by gcov 4.2.
+
 # "cd" and globbing are unsupported in lit internal runner.
 REQUIRES: shell
+
 RUN: rm -rf %t
 RUN: mkdir %t
 RUN: cd %t
 RUN: cp %p/Inputs/test* .
 
-RUN: llvm-cov -gcno=test.gcno -gcda=test.gcda
-RUN: diff -aub test.cpp.gcov test.cpp.llcov
-RUN: rm test.cpp.llcov
+# Basic behaviour with no flags
+RUN: llvm-cov test.c | diff -u test_no_options.output -
+RUN: diff -aub test_no_options.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_no_options.h.gcov test.h.gcov
+
+# Same, but specifying the object directory
+RUN: mkdir -p %t/objdir
+RUN: cp test.gcno test.gcda %t/objdir
+RUN: llvm-cov -o objdir test.c | diff -u test_no_options.output -
+RUN: diff -aub test_objdir.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_objdir.h.gcov test.h.gcov
+
+# Specifying an object file
+RUN: llvm-cov -o objdir/test.o test.c | diff -u test_no_options.output -
+RUN: diff -aub test_objdir.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_objdir.h.gcov test.h.gcov
+
+# Specifying an object file that could be ambiguous with a directory
+RUN: llvm-cov -o objdir/test test.c | diff -u test_no_options.output -
+RUN: diff -aub test_objdir.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_objdir.h.gcov test.h.gcov
+
+# With gcov output disabled
+RUN: llvm-cov -n test.c | diff -u test_no_output.output -
+
+# Preserve paths. This mangles the output filenames.
+RUN: mkdir -p %t/srcdir/nested_dir
+RUN: cp test.cpp test.h %t/srcdir
+RUN: llvm-cov -p test_paths.cpp | diff -u test_preserve_paths.output -
+RUN: diff -aub test_paths.cpp.gcov srcdir#nested_dir#^#test.cpp.gcov
+RUN: diff -aub test_paths.h.gcov srcdir#nested_dir#^#test.h.gcov
+
+# Don't preserve paths. Same results as preserve paths, but no mangling.
+RUN: llvm-cov test_paths.cpp | diff -u test_no_preserve_paths.output -
+RUN: diff -aub test_paths.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_paths.h.gcov test.h.gcov
+
+# Long file names.
+RUN: llvm-cov -l test_paths.cpp | diff -u test_long_file_names.output -
+RUN: diff -aub test_paths.cpp.gcov test_paths.cpp##test.cpp.gcov
+RUN: diff -aub test_paths.h.gcov test_paths.cpp##test.h.gcov
+
+# Long file names and preserve paths.
+RUN: llvm-cov -lp -gcno test_paths.gcno -gcda test_paths.gcda srcdir/../test_paths.cpp | diff -u test_long_paths.output -
+RUN: diff -aub test_paths.cpp.gcov srcdir#^#test_paths.cpp##srcdir#nested_dir#^#test.cpp.gcov
+RUN: diff -aub test_paths.h.gcov srcdir#^#test_paths.cpp##srcdir#nested_dir#^#test.h.gcov
+
+# Function summaries. This changes stdout, but not the gcov files.
+RUN: llvm-cov test.c -f | diff -u test_-f.output -
+RUN: diff -aub test_no_options.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_no_options.h.gcov test.h.gcov
+
+# All blocks. This doesn't affect stdout, only the gcov files.
+RUN: llvm-cov test.c -a | diff -u test_no_options.output -
+RUN: diff -aub test_-a.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_-a.h.gcov test.h.gcov
+
+# Branch probabilities.
+RUN: llvm-cov test.c -a -b | diff -u test_-b.output -
+RUN: diff -aub test_-a_-b.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_-a_-b.h.gcov test.h.gcov
+
+# Function summaries including branch probabilities.
+
+# FIXME: We don't correctly handle calls when -b and -f are used
+# together, so our output differs from gcov. Remove the 'not' from
+# this test once this is fixed.
+RUN: llvm-cov test.c -a -b -f | not diff -u test_-b_-f.output - >/dev/null
+RUN: diff -aub test_-a_-b.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_-a_-b.h.gcov test.h.gcov
+
+# Summarize unconditional branches too.
+RUN: llvm-cov test.c -a -b -u | diff -u test_-b.output -
+RUN: diff -aub test_-a_-b_-u.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_-a_-b_-u.h.gcov test.h.gcov
+
+# Absolute counts for branches.
+RUN: llvm-cov test.c -a -b -c -u | diff -u test_-b.output -
+RUN: diff -aub test_-a_-b_-c_-u.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_-a_-b_-c_-u.h.gcov test.h.gcov
+
+# Missing gcda file just gives 0 counts.
+RUN: llvm-cov test.c -gcda=no_such_gcda_file | diff -u test_no_gcda.output -
+RUN: diff -aub test_no_gcda.cpp.gcov test.cpp.gcov
+RUN: diff -aub test_no_gcda.h.gcov test.h.gcov
+
+# Invalid gcno file.
+RUN: not llvm-cov test.c -gcno=test_read_fail.gcno
 
-RUN: not llvm-cov -gcno=test_read_fail.gcno -gcda=test.gcda
+# Bad file checksum on gcda.
+RUN: not llvm-cov test.c -gcda=test_file_checksum_fail.gcda
 
-RUN: not llvm-cov -gcno=test.gcno -gcda=test_checksum_mismatch.gcda
+# Bad function checksum on gcda
+RUN: not llvm-cov test.c -gcda=test_func_checksum_fail.gcda
 
-XFAIL: powerpc64, s390x, mips
+XFAIL: powerpc64, s390x, mips-, mips64-, sparc