Commit Graph

127 Commits

Author SHA1 Message Date
Ying Yi 84dc971ee2 [llvm-cov] Add the project summary to each source file coverage report.
This patch includes the following changes:
- Included header "Code coverage report" and include the date that the report was created.
- Included title (as specified in a command line option, (i.e llvm-cov  -project-title="Simple Test")
- In the summary, list the elf files that the source code file has contributed to.
- Used column heading for "Line No.", "Count No.", Source".

Differential Revision: https://reviews.llvm.org/D23345

llvm-svn: 279628
2016-08-24 14:27:23 +00:00
Vedant Kumar ad547d361e [llvm-cov] Add some documentation for the -tab-size option
Also, un-hide the cl::opt.

llvm-svn: 277741
2016-08-04 18:00:42 +00:00
Ying Yi 0ef31b7960 [LLVM-COV]Replace tabs to the space indentations in the HTML coverage report.
When using orbis-llvm-cov.exe to generate the HTML report, the HTML report 
can look quite different to the source file if it includes tabs.The default
tab size is 2 spaces instead of 8 spaces. A command line switch is
be added to set the tab size.

Differential Revision: https://reviews.llvm.org/D23087

llvm-svn: 277715
2016-08-04 10:39:43 +00:00
Vedant Kumar 7101d73c71 Retry: [llvm-cov] Add support for exporting coverage data to JSON
This enables users to export coverage information as portable JSON for use by
analysis tools and storage in document based databases.

The export sub-command is invoked just like the others:

  llvm-cov export -instr-profile path/to/foo.profdata path/to/foo.binary

The resulting JSON contains a list of files and functions. Every file object
contains a list of segments, expansions, and a summary of the file's region,
function, and line coverage. Every function object contains the function's name
and regions. There is also a total summary for the entire object file.

Changes since the initial commit (r276813):

  - Fixed the regexes in the tests to handle Windows filepaths.

Patch by Eddie Hurtig!

Differential Revision: https://reviews.llvm.org/D22651

llvm-svn: 276818
2016-07-26 22:50:58 +00:00
Vedant Kumar e85353b849 Revert "[llvm-cov] Add support for exporting coverage data to JSON"
This reverts commit r276813. The Windows bots are complaining about some
of the filename regexes in the tests:

  http://bb.pgr.jp/builders/ninja-clang-i686-msc19-R/builds/5299

llvm-svn: 276816
2016-07-26 21:55:39 +00:00
Vedant Kumar d5b7436c1f [llvm-cov] Add support for exporting coverage data to JSON
This enables users to export coverage information as portable JSON for use by
analysis tools and storage in document based databases.

The export sub-command is invoked just like the others:

  llvm-cov export -instr-profile path/to/foo.profdata path/to/foo.binary

The resulting JSON contains a list of files and functions. Every file object
contains a list of segments, expansions, and a summary of the file's region,
function, and line coverage. Every function object contains the function's name
and regions. There is also a total summary for the entire object file.

Patch by Eddie Hurtig!

Differential Revision: https://reviews.llvm.org/D22651

llvm-svn: 276813
2016-07-26 21:35:43 +00:00
Vedant Kumar 2ab08da0e3 [llvm-cov] Re-write a very opaque comment (NFC)
llvm-svn: 275843
2016-07-18 18:02:54 +00:00
Vedant Kumar b30206304a [llvm-cov] Clean up error reporting (NFC)
Use CodeCoverageTool::{error,warning} everywhere.

llvm-svn: 275837
2016-07-18 17:53:12 +00:00
Vedant Kumar 38202c02f0 [llvm-cov] Attempt to appease an older builder
It's using a version of clang which can't (or won't) deduce an implicit
conversion from a SmallString to a StringRef. Write the conversion out
explicitly:

  http://lab.llvm.org:8011/builders/lldb-x86_64-ubuntu-14.04-buildserver/builds/8574

llvm-svn: 275647
2016-07-15 23:15:35 +00:00
Vedant Kumar 554357b623 [llvm-cov] Attempt to appease Windows bots
They appear to reject r275640 because stdin is held open during an
ExecuteAndWait in which it's redirected:

  http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/8390

llvm-svn: 275642
2016-07-15 23:08:22 +00:00
Vedant Kumar 424f51bb04 [llvm-cov] Optionally use a symbol demangler when preparing reports
Add an option to specify a symbol demangler (as well as options to the
demangler). This can be used to make reports more human-readable.

This option is especially useful in -output-dir mode, since it isn't as
easy to manually pipe reports into a demangler in this mode.

llvm-svn: 275640
2016-07-15 22:44:57 +00:00
Vedant Kumar 6ab6b36475 [llvm-cov] Document a few private fields of CodeCoverageTool (NFC)
llvm-svn: 275639
2016-07-15 22:44:54 +00:00
Vedant Kumar b95dc4608d [llvm-cov] Improve error messages
While we're at it, extend an existing test to make sure that error
messages look reasonable.

llvm-svn: 275520
2016-07-15 01:53:39 +00:00
Vedant Kumar 615b85d9b4 [llvm-cov] Fix a use-after-free
Taking a lock before appending to a vector does no good unless threads
reading from the vector also take the lock, because the vector could be
re-sized.

I don't have a good isolated test for this. I found the issue with ASan
while testing a large project.  I'm working on a bot that does this.

llvm-svn: 275516
2016-07-15 01:19:36 +00:00
Vedant Kumar 84c452dea3 [llvm-cov] Clean up an awkward capture-by-reference (NFC)
Writing `for (StringRef &SourceFile : ...)` is strange to begin with.
Subsequently capturing "SourceFile" by reference is even stranger. Just
copy the StringRef, since that's cheap to do.

llvm-svn: 275515
2016-07-15 01:19:35 +00:00
Vedant Kumar f681e2e506 [Coverage] Mark a few more methods const (NFC)
llvm-svn: 275514
2016-07-15 01:19:33 +00:00
Vedant Kumar 86b2ac6390 [llvm-cov] Use a thread pool to speed up report generation (NFC)
It's safe to print out source coverage views using multiple threads when
using the -output-dir mode of the `llvm-cov show` sub-command.

While testing this on my development machine, I observed that the speed
up is roughly linear with the number of available cores. Avg. time for
`llvm-cov show ./llvm-as -show-line-counts-or-regions`:

    1 thread: 7.79s user 0.33s system 98% cpu 8.228 total
    4 threads: 7.82s user 0.34s system 283% cpu 2.880 total

llvm-svn: 275321
2016-07-13 21:38:36 +00:00
Vedant Kumar 4c01092a25 [llvm-cov] Add support for creating html reports
Based on a patch by Harlan Haskins!

Differential Revision: http://reviews.llvm.org/D18278

llvm-svn: 274688
2016-07-06 21:44:05 +00:00
Vedant Kumar 8d74cb27e8 [llvm-cov] Minor cleanups to prepare for the html format patch
- Add renderView{Header,Footer}, renderLineSuffix, and hasSubViews to
  support creating tables with nested views.

- Move the 'Format' cl::opt to make it easier to extend.

- Just create one function view file, instead of overwriting the same
  file for every new function. Add a regression test for this.

llvm-svn: 274086
2016-06-29 00:38:21 +00:00
Vedant Kumar 9cbad2c2b8 [llvm-cov] Create an index of reports in -output-dir mode
This index lists the reports available in the 'coverage' sub-directory.
This will help navigate coverage output from large projects.

This commit factors the file creation code out of SourceCoverageView and
into CoveragePrinter.

llvm-svn: 274029
2016-06-28 16:12:24 +00:00
Vedant Kumar 64d8a029e9 [llvm-cov] Minor cleanups (NFC)
- Test the '-o' alias for -output-dir.
- Use a helper method in a conditional.
- Add a period.

llvm-svn: 274028
2016-06-28 16:12:20 +00:00
Vedant Kumar cef440f7a7 [llvm-cov] Avoid copying file paths multiple times (NFC)
llvm-svn: 274027
2016-06-28 16:12:18 +00:00
Vedant Kumar ebe8401638 [llvm-cov] Rename ShowFormat to Format (NFC)
This makes it a bit more generic, in case we want to emit summary
reports in different formats in the future.

llvm-svn: 274026
2016-06-28 16:12:15 +00:00
Vedant Kumar 72e0fe9c12 [llvm-cov] Simplify; NFC
llvm-svn: 273988
2016-06-28 03:37:56 +00:00
Vedant Kumar 7937ef3796 Reapply "[llvm-cov] Add an -output-dir option for the show sub-command""
Passing -output-dir path/to/dir to llvm-cov show creates path/to/dir if
it doesn't already exist, and prints reports into that directory.

In function view mode, all views are written into
path/to/dir/functions.$EXTENSION. In file view mode, all views are
written into path/to/dir/coverage/$PATH.$EXTENSION.

Changes since the initial commit:

- Avoid accidentally closing stdout twice.

llvm-svn: 273985
2016-06-28 02:09:39 +00:00
Vedant Kumar a48d9fe86a Revert "[llvm-cov] Add an -output-dir option for the show sub-command"
This reverts commit r273971. test/profile/instrprof-visibility.cpp is
failing because of an uncaught error in SafelyCloseFileDescriptor.

llvm-svn: 273978
2016-06-28 01:14:04 +00:00
Vedant Kumar 02507c435c [llvm-cov] Add an -output-dir option for the show sub-command
Passing -output-dir path/to/dir to llvm-cov show creates path/to/dir if
it doesn't already exist, and prints reports into that directory.

In function view mode, all views are written into
path/to/dir/functions.$EXTENSION. In file view mode, all views are
written into path/to/dir/coverage/$PATH.$EXTENSION.

llvm-svn: 273971
2016-06-28 00:18:57 +00:00
Vedant Kumar 727549ee74 [llvm-cov] clang-format a line, NFC
llvm-svn: 273969
2016-06-28 00:18:51 +00:00
Vedant Kumar 635c83c1b4 [llvm-cov] Add a format option for the 'show' sub-command (mostly NFC)
llvm-svn: 273968
2016-06-28 00:15:54 +00:00
Vedant Kumar f9151b9372 [llvm-cov] Separate presentation logic from formatting logic, NFC
This makes it easier to add renderers for new kinds of output formats.

- Define and document a pure-virtual coverage rendering interface.
- Move the text-based rendering logic into its a new file.
- Re-work the API to better reflect the presentation/formatting split.

llvm-svn: 273767
2016-06-25 02:58:30 +00:00
Vedant Kumar 2c96e88ed4 [llvm-cov] Fix two warnings
They were using output streams inconsistently. One also had a grammar
bug.

I noticed these while trying to pare down D18278.

llvm-svn: 273642
2016-06-24 02:33:01 +00:00
Vedant Kumar 9d70d0b5ff [llvm-cov] Add SourceNames to SourceCoverageViews, NFC
A SourceName can be a file or a function. It makes sense to attach this
information to a SourceCoverageView, seeing as views (1) already point
to the text corresponding to the relevant source code and (2) are
already used to render that text along with the SourceNames.

This is a nice cleanup which is independent of the upcoming html patch.

While we're at it, document the fields in SourceCoverageView.

llvm-svn: 273634
2016-06-24 00:34:51 +00:00
Richard Smith 2ad6d48b0c Search for llvm-symbolizer binary in the same directory as argv[0], before
looking for it along $PATH. This allows installs of LLVM tools outside of
$PATH to find the symbolizer and produce pretty backtraces if they crash.

llvm-svn: 272232
2016-06-09 00:53:21 +00:00
Benjamin Kramer c321e53402 Apply most suggestions of clang-tidy's performance-unnecessary-value-param
Avoids unnecessary copies. All changes audited & pass tests with asan.
No functional change intended.

llvm-svn: 272190
2016-06-08 19:09:22 +00:00
Vedant Kumar 9152fd17e9 Retry^3 "[ProfileData] (llvm) Use Error in InstrProf and Coverage, NFC"
Transition InstrProf and Coverage over to the stricter Error/Expected
interface.

Changes since the initial commit:
- Fix error message printing in llvm-profdata.
- Check errors in loadTestingFormat() + annotateAllFunctions().
- Defer error handling in InstrProfIterator to InstrProfReader.
- Remove the base ProfError class to work around an MSVC ICE.

Differential Revision: http://reviews.llvm.org/D19901

llvm-svn: 270020
2016-05-19 03:54:45 +00:00
Vedant Kumar 85c973d3f0 Revert "Retry^2 "[ProfileData] (llvm) Use Error in InstrProf and Coverage, NFC""
This reverts commit r269694. MSVC says:

error C2086: 'char llvm::ProfErrorInfoBase<enum llvm::instrprof_error>::ID' : redefinition

llvm-svn: 269700
2016-05-16 21:03:38 +00:00
Vedant Kumar 7cb2fd5904 Retry^2 "[ProfileData] (llvm) Use Error in InstrProf and Coverage, NFC"
Transition InstrProf and Coverage over to the stricter Error/Expected
interface.

Changes since the initial commit:
- Address undefined-var-template warning.
- Fix error message printing in llvm-profdata.
- Check errors in loadTestingFormat() + annotateAllFunctions().
- Defer error handling in InstrProfIterator to InstrProfReader.

Differential Revision: http://reviews.llvm.org/D19901

llvm-svn: 269694
2016-05-16 20:49:39 +00:00
Chandler Carruth 5957375902 Revert "Retry "[ProfileData] (llvm) Use Error in InstrProf and Coverage, NFC""
This reverts commit r269491. It triggers warnings with Clang, breaking
builds for -Werror users including several build bots.

llvm-svn: 269547
2016-05-14 05:26:26 +00:00
Vedant Kumar df41bd89a5 Retry "[ProfileData] (llvm) Use Error in InstrProf and Coverage, NFC"
Transition InstrProf and Coverage over to the stricter Error/Expected
interface.

Changes since the initial commit:
- Fix error message printing in llvm-profdata.
- Check errors in loadTestingFormat() + annotateAllFunctions().
- Defer error handling in InstrProfIterator to InstrProfReader.

Differential Revision: http://reviews.llvm.org/D19901

llvm-svn: 269491
2016-05-13 21:50:56 +00:00
Vedant Kumar 064535c1ea Revert "(HEAD -> master, origin/master, origin/HEAD) [ProfileData] (llvm) Use Error in InstrProf and Coverage, NFC"
This reverts commit r269462. It fails two llvm-profdata tests.

llvm-svn: 269466
2016-05-13 20:09:39 +00:00
Vedant Kumar ac25219d20 [ProfileData] (llvm) Use Error in InstrProf and Coverage, NFC
Transition InstrProf and Coverage over to the stricter Error/Expected
interface.

Differential Revision: http://reviews.llvm.org/D19901

llvm-svn: 269462
2016-05-13 20:01:27 +00:00
Easwaran Raman dc7071226b Move coverage related code into a separate library.
Differential Revision: http://reviews.llvm.org/D19333

llvm-svn: 268089
2016-04-29 18:53:05 +00:00
Frederic Riss ebc162a766 [Object] Search for architecures by name in MachOUniversalBinary::getObjectForArch()
The reason we need to search by name rather than by Triple::ArchType
is to handle subarchitecture correclty. There is no different ArchType
for the x86_64h architecture (it identifies itself as x86_64), or for
the various ARM subarches. The only way to get to the subarch slice
in an universal binary is to search by name.

This issue led to hard to debug and transient symbolication failures
in Asan tests (it mostly works, because the files are very similar).

This also affects the Profiling infrastucture as it is the other user
of that API.

Reviewers: samsonov, bogner

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10604

llvm-svn: 240339
2015-06-22 21:33:24 +00:00
Benjamin Kramer f5e2fc474d Replace push_back(Constructor(foo)) with emplace_back(foo) for non-trivial types
If the type isn't trivially moveable emplace can skip a potentially
expensive move. It also saves a couple of characters.


Call sites were found with the ASTMatcher + some semi-automated cleanup.

memberCallExpr(
    argumentCountIs(1), callee(methodDecl(hasName("push_back"))),
    on(hasType(recordDecl(has(namedDecl(hasName("emplace_back")))))),
    hasArgument(0, bindTemporaryExpr(
                       hasType(recordDecl(hasNonTrivialDestructor())),
                       has(constructExpr()))),
    unless(isInTemplateInstantiation()))

No functional change intended.

llvm-svn: 238602
2015-05-29 19:43:39 +00:00
Justin Bogner 65337d1f3a llvm-cov: Warn if object file is newer than profile
Looking at coverage with an out of date profile can be confusing.
Provide a little hint that something might be wrong.

llvm-svn: 236408
2015-05-04 04:09:38 +00:00
Justin Bogner 9deb1d406f llvm-cov: Rename -color={always|never} to -use-color[=0]
This is an ugly hack to fix the configure --enable-shared build. It
turns out that *every cl::opt in LLVM* shows up in *every tool* in
that configuration, which is hopelessly broken. This skirts around the
issue by not colliding with another option's name, for now.

I've also simplified the option implementation - the other "color"
option used cl::boolOrDefault and was much nicer than what I'd written
before.

llvm-svn: 232704
2015-03-19 04:45:16 +00:00
Justin Bogner efa427823e llvm-cov: Continue trying to appease a bot
This bot doesn't like me. I don't know why:

    http://lab.llvm.org:8011/builders/clang-hexagon-elf/builds/24425

Move the color option enum's definition out of the function that
creates the cl::opt.

llvm-svn: 232700
2015-03-19 02:00:54 +00:00
Justin Bogner 58e2492f93 llvm-cov: Try to appease a bot
The clang-hexagon elf bot was complaining that "Option 'color'
registered more than once!":

    http://lab.llvm.org:8011/builders/clang-hexagon-elf/builds/24425

I don't understand why this error is happening, and I don't see it on
any other bots or on my own machine, so I'm kind of grasping at
straws. Try using an unscoped enum and specifying a cl::init to see if
they help.

llvm-svn: 232698
2015-03-19 01:07:22 +00:00
Justin Bogner cfb53e49b6 llvm-cov: Only emit colour by default if the output is a tty
This replaces the -no-color flag with a -color={auto|always|never}
option, with auto as the default, which is much saner.

llvm-svn: 232693
2015-03-19 00:02:23 +00:00
Justin Bogner 4379535e3f InstrProf: Teach llvm-cov to handle universal binaries when given -arch
llvm-svn: 231902
2015-03-11 02:30:51 +00:00
Justin Bogner 0ef7a2a250 llvm-cov: Actually use the command line arguments when reporting
This code didn't really make sense as is. If a filename is passed in,
the user obviously wants the coverage *for that file*, not *for
everything*.

llvm-svn: 229217
2015-02-14 02:05:05 +00:00
Justin Bogner f91bc6cdd8 llvm-cov: Simplify coverage reports, fixing PR22575 in the process
PR22575 occurred because we were unsafely storing references into a
std::vector. If the vector moved because it grew, we'd be left
iterating through garbage memory. This avoids the issue by simplifying
the logic to gather coverage information as we go, rather than storing
it and iterating over it.

I'm relying on the existing tests showing that this is semantically
NFC, since it's difficult to hit the issue this fixes without
relatively large covered programs.

llvm-svn: 229215
2015-02-14 02:01:24 +00:00
Justin Bogner 94695c4b87 InstrProf: Remove an unused header (NFC)
llvm-svn: 227881
2015-02-02 22:38:39 +00:00
Chandler Carruth d9903888d9 [cleanup] Re-sort all the #include lines in LLVM using
utils/sort_includes.py.

I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the InstrProf library that I've
added. No functionality changed here, just mechanical cleanup of the
include order.

llvm-svn: 225974
2015-01-14 11:23:27 +00:00
Rafael Espindola 839353bca0 Remove unused includes and out of date comment. NFC.
llvm-svn: 224413
2014-12-17 03:07:20 +00:00
Justin Bogner d5fca92425 llvm-cov: Sink some reporting logic into CoverageMapping
This teaches CoverageMapping::getCoveredFunctions to filter to a
particular file and uses that to replace most of the logic found in
llvm-cov report.

llvm-svn: 221962
2014-11-14 01:50:32 +00:00
Justin Bogner d249a3b3b2 llvm-cov: Follow LLVM naming conventions
This renames a few things that are using an unusual naming convention.

llvm-svn: 220929
2014-10-30 20:57:49 +00:00
Justin Bogner f6c5055764 llvm-cov: Don't manually parse an option for no reason
We're using cl::opt here, but for some reason we're reading out one
particular option by hand instead. This makes -help and the like
behave rather poorly, so let's not do it this way.

llvm-svn: 220928
2014-10-30 20:51:24 +00:00
Justin Bogner 19a93ba814 llvm-cov: Allow creating CoverageMappings from filenames
llvm-svn: 218185
2014-09-20 17:19:52 +00:00
Justin Bogner 953e2407ed llvm-cov: Disentangle the coverage data logic from the display (NFC)
This splits the logic for actually looking up coverage information
from the logic that displays it. These were tangled rather thoroughly
so this change is a bit large, but it mostly consists of moving things
around. The coverage lookup logic itself now lives in the library,
rather than being spread between the library and the tool.

llvm-svn: 218184
2014-09-20 15:31:56 +00:00
Justin Bogner f584649ae3 llvm-cov: Move some reader debug output out of the tool.
This debug output is really for testing CoverageMappingReader, not the
llvm-cov tool. Move it to where it can be more useful.

llvm-svn: 218183
2014-09-20 15:31:51 +00:00
Justin Bogner 5a6edad3d8 llvm-cov: Return unique_ptrs instead of filling objects (NFC)
Having create* functions return the object they create is more
readable than using an in-out parameter.

llvm-svn: 218139
2014-09-19 19:07:17 +00:00
Justin Bogner 116c16642d llvm-cov: Generalize -filename-equivalence
The filename-equivalence flag allows you to show coverage when your
source files don't have the same full paths as those that generated
the data. This is mostly useful for writing tests in a cross-platform
way.

This wasn't triggering in cases where the filename was derived
directly from the coverage data, which meant certain types of test
case were impossible to write. This patch fixes that, and following
patches involve tests that need this.

llvm-svn: 218108
2014-09-19 08:13:12 +00:00
Justin Bogner 1ae21d1367 llvm-cov: Simplify FunctionInstantiationSetCollector (NFC)
- Replace std::unordered_map with DenseMap
- Use std::pair instead of manually combining two unsigneds
- Assert if insert is called with invalid arguments
- Avoid an unnecessary copy of a std::vector

llvm-svn: 218074
2014-09-18 20:31:26 +00:00
Justin Bogner 5cbed6e09e llvm-cov: Push some more debug output into the View (NFC)
llvm-svn: 217984
2014-09-17 21:48:52 +00:00
Justin Bogner fe357c003f llvm-cov: Rework the API for getting the coverage of a file (NFC)
This encapsulates how we handle the coverage regions of a file or
function. In the old model, the user had to deal with nested regions,
so they needed to maintain their own auxiliary data structures to get
any useful information out of this. The new API provides a sequence of
non-overlapping coverage segments, which makes it possible to render
coverage information in a single pass and avoids a fair amount of
extra work.

llvm-svn: 217975
2014-09-17 18:23:47 +00:00
Justin Bogner 5e1400a81c llvm-cov: Distinguish expansion/instantiation from SourceCoverageView
SourceCoverageView currently has "Kind" and a list of child views, all
of which must have either an expansion or an instantiation Kind. In
addition to being an error-prone design, this makes it awkward to
differentiate between the two child types and adds a number of
optionally used members to the type.

Split the subview types into their own separate objects, and maintain
lists of each rather than one combined "Children" list.

llvm-svn: 217940
2014-09-17 05:33:20 +00:00
Justin Bogner 92bb302314 llvm-cov: Make debug output more consistent
This changes the debug output of the llvm-cov tool to consistently
write to stderr, and moves the highlighting output closer to where
it's relevant.

llvm-svn: 217838
2014-09-15 22:23:29 +00:00
Justin Bogner 7dad93bec2 llvm-cov: Clean up some redundancy in the view API (NFC)
This removes the need to pass a starting and ending line when creating
a SourceCoverageView, since these are easy to determine.

llvm-svn: 217746
2014-09-15 03:41:04 +00:00
Justin Bogner 15562d00c1 llvm-cov: Move FunctionCoverageMapping into CoverageMapping.h (NFC)
llvm-svn: 217657
2014-09-12 06:52:44 +00:00
Justin Bogner 3d7260e7b2 Revert "llvm-cov: Remove an overly system specific test"
This fixes a call to sys::fs::equivalent that should've been to
CodeCoverageTool::equivalentFiles, which lets us restore the test of
r217476 that was removed in r217478.

This reverts r217478, but the test works this time.

llvm-svn: 217646
2014-09-11 23:20:48 +00:00
Justin Bogner e53be0662a llvm-cov: Combine two types that were nearly identical (NFC)
llvm-cov had a SourceRange type that was nearly identical to a
CountedRegion except that it shaved off a couple of fields. There
aren't likely to be enough of these for the minor memory savings to be
worth the extra complexity here.

llvm-svn: 217417
2014-09-09 05:32:18 +00:00
Justin Bogner 8e8aa3ff90 llvm-cov: Rename MappingRegion to coverage::CountedRegion (NFC)
This name was too similar to CoverageMappingRegion, and the type
really belongs in the coverage library anyway.

llvm-svn: 217416
2014-09-09 05:32:14 +00:00
Justin Bogner 85b0a03a69 llvm-cov: Use ErrorOr rather than an error_code* (NFC)
llvm-svn: 217404
2014-09-08 21:04:00 +00:00
Justin Bogner 84ae925f7a llvm-cov: Remove dead code
FunctionCoverageMapping::PrettyName was from a version of the tool
during review, and isn't actually used currently.

llvm-svn: 217398
2014-09-08 19:51:21 +00:00
Justin Bogner bc1dc578cb llvm-cov: Don't pointlessly create a unique_ptr (NFC)
There's no ownership going on here, and no reason to heap allocate
this object.

llvm-svn: 217113
2014-09-04 00:04:54 +00:00
Alex Lorenz e82d89cc37 llvm-cov: add code coverage tool that's based on coverage mapping format and clang's pgo.
This commit expands llvm-cov's functionality by adding support for a new code coverage
tool that uses LLVM's coverage mapping format and clang's instrumentation based profiling.
The gcov compatible tool can be invoked by supplying the 'gcov' command as the first argument,
or by modifying the tool's name to end with 'gcov'.

Differential Revision: http://reviews.llvm.org/D4445

llvm-svn: 216300
2014-08-22 22:56:03 +00:00