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Commit Graph

38 Commits

Author SHA1 Message Date
Justin Bogner
6f40bf9196 llvm-cov: Add support for gcov's --long-file-names option
GCOV provides an option to prepend output file names with the source
file name, to disambiguate between covered data that's included from
multiple sources. Add a flag to llvm-cov that does the same.

llvm-svn: 207035
2014-04-23 21:44:55 +00:00
Justin Bogner
ed5cd7f12e llvm-cov: Allow short options to be grouped
llvm-svn: 207034
2014-04-23 21:44:48 +00:00
Ahmed Charles
52ce0c101e Replace OwningPtr<T> with std::unique_ptr<T>.
This compiles with no changes to clang/lld/lldb with MSVC and includes
overloads to various functions which are used by those projects and llvm
which have OwningPtr's as parameters. This should allow out of tree
projects some time to move. There are also no changes to libs/Target,
which should help out of tree targets have time to move, if necessary.

llvm-svn: 203083
2014-03-06 05:51:42 +00:00
Justin Bogner
008ac0494e llvm-cov: Support gcov's extermely lenient treatment of -o
In gcov, the -o flag can accept either a directory or a file name.
When given a directory, the gcda and gcno files are expected to be in
that directory. When given a file, the gcda and gcno files are
expected to be named based on the stem of that file. Non-existent
paths are treated as files.

This implements compatible behaviour.

llvm-svn: 201555
2014-02-18 09:19:48 +00:00
Justin Bogner
8f223c891e llvm-cov: Implement the preserve-paths flag
Until now, when a path in a gcno file included a directory, we would
emit our .gcov file in that directory, whereas gcov always emits the
file in the current directory. In doing so, this implements gcov's
strange name-mangling -p flag, which is needed to avoid clobbering
files when two with the same name exist in different directories.

The path mangling is a bit ugly and only handles unix-like paths, but
it's simple, and it doesn't make any guesses as to how it should
behave outside of what gcov documents. If we decide this should be
cross platform later, we can consider the compatibility implications
then.

llvm-svn: 200754
2014-02-04 10:45:02 +00:00
Justin Bogner
65de807c11 llvm-cov: Implement the object-directory flag
llvm-svn: 200741
2014-02-04 06:41:43 +00:00
Justin Bogner
f5d6ae5d00 llvm-cov: Ignore missing .gcda files
When gcov is run without gcda data, it acts as if the counts are all
zero and labels the file as - to indicate that there was no data. We
should do the same.

llvm-svn: 200740
2014-02-04 06:41:39 +00:00
Justin Bogner
d84fb7d44a llvm-cov: Accept the long forms of gcov options
This is a bit imperfect, as these options don't show up in the help as
is and single dash variants are accepted, which differs from gcov.
Unfortunately, this seems to be as good as it gets with the cl::opt
machinery, so it'll do as an incremental step.

llvm-svn: 200419
2014-01-29 21:31:47 +00:00
Justin Bogner
f2934ce45c llvm-cov: Improve help message text
This Properly capitalizes and clarifies the help output from
llvm-cov. It also puts the llvm-only / non-gcov-compatible options in
their own category.

llvm-svn: 200418
2014-01-29 21:31:45 +00:00
Justin Bogner
25e1dc7514 llvm-cov: Expect a source file as a positional parameter
Currently, llvm-cov isn't command-line compatible with gcov, which
accepts a source file name as its first parameter and infers the gcno
and gcda file names from that. This change keeps our -gcda and -gcno
options available for convenience in overriding this behaviour, but
adds the required parameter and inference behaviour as a compatible
default.

llvm-svn: 200417
2014-01-29 21:31:34 +00:00
Yuchen Wu
a7b83f0a43 llvm-cov: Added -f option for function summaries.
Similar to the file summaries, the function summaries output line,
branching and call statistics. The file summaries have been moved
outside the initial loop so that all of the function summaries can be
outputted before file summaries.

Also updated test cases.

llvm-svn: 197633
2013-12-19 00:29:25 +00:00
Yuchen Wu
fabdd3701d llvm-cov: Added -c option for branch counts.
This will cause llvm-cov to output branch counts instead of branch
probabilities. -b must be enabled.

Also updated tests.

llvm-svn: 197594
2013-12-18 18:40:15 +00:00
Yuchen Wu
20daa1c2fa llvm-cov: Added -u option for unconditional branch info.
Outputs branch information for unconditional branches in addition to
conditional branches. -b option must be enabled.

Also updated tests.

llvm-svn: 197432
2013-12-16 22:14:02 +00:00
Yuchen Wu
698f3e12b7 llvm-cov: Added -b option for branch probabilities.
This option tells llvm-cov to print out branch probabilities when
a basic block contains multiple branches. It also prints out some
function summary info including the number of times the function enters,
the percent of time it returns, and how many blocks were executed.

Also updated tests.

llvm-svn: 197198
2013-12-13 01:15:07 +00:00
Yuchen Wu
9e73c842ad llvm-cov: Added -a option for block data.
Similar to gcov, llvm-cov will now print out the block count at the end
of each block. Multiple blocks can end on the same line.

One computational difference is by using -a, llvm-cov will no longer
simply add the block counts together to form a line count. Instead, it
will take the maximum of the block counts on that line. This has a
similar effect to what gcov does, but generates more correct counts in
certain scenarios.

Also updated tests.

llvm-svn: 196856
2013-12-10 01:02:07 +00:00
Yuchen Wu
d29823e2c3 llvm-cov: Conformed headers.
llvm-svn: 196541
2013-12-05 22:02:29 +00:00
Yuchen Wu
0b08e75d64 llvm-cov: Split GCOVFile's read into GCNO and GCDA.
This splits the file-scope read() function into readGCNO() and
readGCDA(). Also broke file format read into functions that first read
the file type, then check the version.

llvm-svn: 196353
2013-12-04 04:49:23 +00:00
Yuchen Wu
cd7628e981 llvm-cov: Removed output to STDOUT/specified file.
Instead of asking the user to specify a single file to output coverage
info and defaulting to STDOUT, llvm-cov now creates files for each
source file with a naming system of: <source filename> + ".llcov".

This is what gcov does and although it can clutter the working directory
with numerous coverage files, it will be easier to hook the llvm-cov
output to tools which operate on this assumption (such as lcov).

llvm-svn: 196184
2013-12-03 00:57:11 +00:00
Benjamin Kramer
0207e765c7 llvm-cov: Clean up memory leaks.
llvm-svn: 194799
2013-11-15 09:44:17 +00:00
NAKAMURA Takumi
03017d65ec llvm-cov requires IR and Support as libraries. Instrumentation would be overkill.
llvm-svn: 194695
2013-11-14 11:45:16 +00:00
Yuchen Wu
2ca00e3a3d Revert "llvm-cov: Added command-line option to change dir."
This reverts commit d8acf0078cf363252727acff00f85ae8074f95b3.

llvm-svn: 194040
2013-11-05 01:56:29 +00:00
Yuchen Wu
f41fb5a06a llvm-cov: Added command-line option to change dir.
This will allow for much easier testing when the input files are in a
different folder from the test script.

llvm-svn: 194034
2013-11-05 01:20:41 +00:00
Yuchen Wu
c01bdb27f5 Added command-line option to output llvm-cov to file.
Added -o option to llvm-cov. If no output file is specified, it defaults
to STDOUT.

llvm-svn: 193899
2013-11-02 00:09:17 +00:00
Yuchen Wu
bd5d7e04ef Updated llvm-cov's OVERVIEW description
llvm-svn: 193732
2013-10-31 02:01:24 +00:00
Bob Wilson
dfa90927ed Change llvm-cov output formatting to be more similar to gcov.
- Replaced tabs with proper padding
- print() takes two arguments, which are the GCNO and GCDA filenames
- Files are listed at the top of output, appended by line 0
- Stripped strings of trailing \0s
- Removed last two lines of whitespace in output

Patch by Yuchen Wu!

llvm-svn: 193148
2013-10-22 05:09:41 +00:00
Bob Wilson
1a96904c72 Move the printing of llvm-cov information out from collectLineCounts().
collectLineCounts() should only organize the output data. This is done in
anticipation of subsequent changes which will pass in GCNO and GCDA filenames
into the print function where it is printed similar to the gcov output.

Patch by Yuchen Wu!

llvm-svn: 193134
2013-10-22 00:09:03 +00:00
Bill Wendling
f455fc4cc9 Remove accidental commit.
llvm-svn: 167544
2012-11-07 18:39:32 +00:00
Bill Wendling
7c037952d4 Add comment describing what's going on here.
llvm-svn: 167525
2012-11-07 05:19:04 +00:00
Daniel Dunbar
30d6a45140 LLVMBuild: Remove trailing newline, which irked me.
llvm-svn: 146409
2011-12-12 19:48:00 +00:00
Daniel Dunbar
efa02a0c3d LLVMBuild: Add description files for the LLVM tools.
llvm-svn: 144417
2011-11-11 22:59:39 +00:00
Daniel Dunbar
81780d9982 build: Tidy up a bunch of tool Makefiles, and simplify where possible using the
new all-targets pseudo-component.

llvm-svn: 142401
2011-10-18 19:27:24 +00:00
Devang Patel
196ef2ac28 Update cmake list.
llvm-svn: 141104
2011-10-04 19:38:16 +00:00
Devang Patel
90c78f84f2 Put GCOVFile and other related interface in a common header so that llvm-cov tool can share it with GCOV writer.
llvm-svn: 141095
2011-10-04 17:24:48 +00:00
Devang Patel
e5a1e5b655 Simplify.
llvm-svn: 140789
2011-09-29 17:06:40 +00:00
Devang Patel
b1bef6ba30 Clarify comments.
llvm-svn: 140787
2011-09-29 16:52:53 +00:00
Devang Patel
0729c18444 Remove unnecessary and unused data member.
llvm-svn: 140786
2011-09-29 16:48:44 +00:00
Devang Patel
204df6030c Cosmetic changes, as per Nick's review.
llvm-svn: 140785
2011-09-29 16:46:47 +00:00
Devang Patel
3605f8423f Introduce llvm-cov.
Add llvm-cov skeleton. It has initial support to read coverage info generated by GCOVProfiling.cpp. 
Today, you can do
prompt> clang a.c -ftest-coverage -fprofile-arcs -o a
prompt> ./a
prompt> llvm-cov -gcno a.gcno -gcda a.gcda 
a.c
 :	#include "a.h"
 :	
 :	int main() {
 :		int i = 0;
 :		if (i) {
1:			int j = 0;
1:			j = 1;
1:		} else {
 :			int k = 1;
 :			k = 2;
 :		}
1:		return 0;
 :	}
 :	
 :	

llvm-svn: 140712
2011-09-28 18:50:00 +00:00