llvm-cov: Print coverage summary to STDOUT.

File summaries will now be optionally outputted which will give line,
branching and call coverage info. Unfortunately, clang's current
instrumentation does not give enough information to deduce function
calls, something that gcc is able to do. Thus, no calls are always
outputted to be consistent with gcov output.

Also updated tests.

llvm-svn: 197606

2 files changed, 21 insertions, 0 deletions

diff --git a/llvm/test/tools/llvm-cov/Inputs/test_-b.output b/llvm/test/tools/llvm-cov/Inputs/test_-b.output
new file mode 100644
index 00000000000..4003ce8e692
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/test_-b.output
@@ -0,0 +1,13 @@
+File 'test.cpp'
+Lines executed:84.21% of 38
+Branches executed:100.00% of 15
+Taken at least once:86.67% of 15
+No calls
+test.cpp:creating 'test.cpp.gcov'
+
+File './test.h'
+Lines executed:100.00% of 1
+No branches
+No calls
+./test.h:creating './test.h.gcov'
+
diff --git a/llvm/test/tools/llvm-cov/Inputs/test_no_options.output b/llvm/test/tools/llvm-cov/Inputs/test_no_options.output
new file mode 100644
index 00000000000..93ea726720a
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/test_no_options.output
@@ -0,0 +1,8 @@
+File 'test.cpp'
+Lines executed:84.21% of 38
+test.cpp:creating 'test.cpp.gcov'
+
+File './test.h'
+Lines executed:100.00% of 1
+./test.h:creating './test.h.gcov'
+