29 Commits

Author SHA1 Message Date
Vedant Kumar
b1f881cc44 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
f80d958e78 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
edf8350f15 [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
Vedant Kumar
76590792bb [unittests] Use coveragemap_error in CoverageMappingReaderMock (NFC)
llvm-svn: 269324
2016-05-12 19:01:11 +00:00
Igor Kudrin
f5fc8f3eae [Coverage] Combine counts of expansion regions if there are no code regions for the same area.
Differential Revision: http://reviews.llvm.org/D18831

llvm-svn: 268620
2016-05-05 09:39:45 +00:00
Vedant Kumar
6ae4c28888 [ProfileData] Assert NoError in CoverageMappingTest
Check for success values in the CoverageMappingTest unit test file.

This is part of a series of patches to transition ProfileData over to
the stricter Error/Expected interface.

llvm-svn: 268420
2016-05-03 18:49:41 +00:00
Easwaran Raman
bf879068e7 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
Igor Kudrin
7e40f64026 [Coverage] Restore the correct count value after processing a nested region in case of combined regions.
If several regions cover the same area of code, we have to restore
the combined value for that area when return from a nested region.

This patch achieves that by combining regions before calling buildSegments.

Differential Revision: http://reviews.llvm.org/D18610

llvm-svn: 267390
2016-04-25 09:43:37 +00:00
Igor Kudrin
32058f8126 Reapply "[Coverage] Prevent detection of false instantiations in case of macro expansion."
The root of the problem was that findMainViewFileID(File, Function)
could return some ID for any given file, even though that file
was not the main file for that function.

This patch ensures that the result of this function is conformed
with the result of findMainViewFileID(Function).

This commit reapplies r266436, which was reverted by r266458,
with the .covmapping file serialized in v1 format.

Differential Revision: http://reviews.llvm.org/D18787

llvm-svn: 266620
2016-04-18 15:36:30 +00:00
Mehdi Amini
9ff867f98c [NFC] Header cleanup
Removed some unused headers, replaced some headers with forward class declarations.

Found using simple scripts like this one:
clear && ack --cpp -l '#include "llvm/ADT/IndexedMap.h"' | xargs grep -L 'IndexedMap[<]' | xargs grep -n --color=auto 'IndexedMap'

Patch by Eugene Kosov <claprix@yandex.ru>

Differential Revision: http://reviews.llvm.org/D19219

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 266595
2016-04-18 09:17:29 +00:00
Igor Kudrin
6d8bf78f13 Revert "[Coverage] Prevent detection of false instantiations in case of macro expansion."
This reverts commit r266436 as it broke buildbot.

llvm-svn: 266458
2016-04-15 17:53:48 +00:00
Igor Kudrin
4f06b09bd9 [Coverage] Prevent detection of false instantiations in case of macro expansion.
The root of the problem was that findMainViewFileID(File, Function)
could return some ID for any given file, even though that file
was not the main file for that function.

This patch ensures that the result of this function is conformed
with the result of findMainViewFileID(Function).

Differential Revision: http://reviews.llvm.org/D18787

llvm-svn: 266436
2016-04-15 14:56:50 +00:00
Igor Kudrin
8c661fd7cc [Coverage] Add support for making test data for more than one function.
Differential Revision: http://reviews.llvm.org/D18758

llvm-svn: 266434
2016-04-15 14:46:31 +00:00
Igor Kudrin
dde32a28b6 [Coverage] Update testing methods to support more than two files
Differential Revision: http://reviews.llvm.org/D18757

llvm-svn: 266289
2016-04-14 10:43:37 +00:00
Vedant Kumar
8c50bbf8c8 [Coverage] Strip <unknown> from PGO names if no filenames are available
Patch suggested by David Li!

llvm-svn: 264586
2016-03-28 15:49:08 +00:00
Vedant Kumar
2cee1f1ff7 [Coverage] Fix the way we load "<unknown>:func" records
When emitting coverage mappings for functions with local linkage and an
unknown filename, we use "<unknown>:func" for the PGO function name. The
problem is that we don't strip "<unknown>" from the name when loading
coverage data, like we do for other file names. Fix that and add a test.

llvm-svn: 264559
2016-03-28 01:16:12 +00:00
Vedant Kumar
e1a3d86600 [Profiling] Add a -sparse mode to llvm-profdata merge
Add an option to llvm-profdata merge for writing out sparse indexed
profiles. These profiles omit InstrProfRecords for functions which are
never executed.

Differential Revision: http://reviews.llvm.org/D16727

llvm-svn: 259258
2016-01-29 22:54:45 +00:00
Justin Bogner
b34b76538a InstrProf: Support for value profiling in the indexed profile format
Add support to the indexed instrprof reader and writer for the format
that will be used for value profiling.

Patch by Betul Buyukkurt, with minor modifications.

llvm-svn: 248833
2015-09-29 22:13:58 +00:00
Justin Bogner
ca8e06d93f InstrProf: Treat functions with a coverage map but no profile as unreached
If we have a coverage mapping but no profile data for a function,
calling it mismatched is misleading. This can just as easily be
unreachable code that was stripped from the binary. Instead, treat
these the same as functions where we have an explicit "zero" coverage
map by setting the count to zero for each mapped region.

llvm-svn: 237298
2015-05-13 22:03:04 +00:00
Justin Bogner
8d160aaf1d InstrProf: Strip filename prefixes from the names we display for coverage
For consumers of coverage data, any filename prefixes we store in the
profile data are just noise. Strip this prefix if it exists.

llvm-svn: 236558
2015-05-05 23:44:48 +00:00
Justin Bogner
485508085b InstrProf: Don't combine expansion regions with code regions
This was leading to duplicate counts when a code region happened to
overlap exactly with an expansion. The combining behaviour only makes
sense for code regions.

llvm-svn: 229723
2015-02-18 19:01:06 +00:00
Justin Bogner
8ab6d199d1 InstrProf: Handle unknown functions if they consist only of zero-regions
This comes up when we generate coverage for a function but don't end
up emitting the function at all - dead static functions or inline
functions that aren't referenced in a particular TU, for example. In
these cases we'd like to show that the function was never called,
which is trivially true.

llvm-svn: 229717
2015-02-18 18:40:46 +00:00
Justin Bogner
dfdc3baaba InstrProf: Make CoverageMapping testable and add a basic unit test
Make CoverageMapping easier to create, so that we can write targeted
unit tests for its internals, and add a some infrastructure to write
these tests. Finally, add a simple unit test for basic functionality.

llvm-svn: 229709
2015-02-18 18:01:14 +00:00
Justin Bogner
b4e0972ae0 Re-apply "InstrProf: Use a test fixture in the coverage mapping tests"
This time we use a helper to format the assertion so we can just use
ASSERT_TRUE instead of relying on ASSERT_EQ being able to deal with
conversions between enum types.

This reverts r229496, re-applying r229473.

llvm-svn: 229547
2015-02-17 21:33:43 +00:00
Aaron Ballman
7fad43a0a3 Reverting r229473; it does not compile with MSVC 2013, and I suspect it was meant to be reverted in r229483.
llvm-svn: 229496
2015-02-17 13:18:43 +00:00
Justin Bogner
4045791521 InstrProf: Use a test fixture in the coverage mapping tests
llvm-svn: 229473
2015-02-17 06:56:49 +00:00
Justin Bogner
0b39e02c0c InstrProf: Avoid using std::to_string
Apparently std::to_string doesn't exist in mingw32:

    http://lab.llvm.org:8011/builders/clang-native-mingw32-win7/builds/7990
    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52015

llvm-svn: 228340
2015-02-05 19:54:27 +00:00
Justin Bogner
42fc7ccb77 InstrProf: std::to_string needs to #include <string>
llvm-svn: 228136
2015-02-04 11:19:16 +00:00
Justin Bogner
ce308f54ec InstrProf: Add some unit tests for CoverageMapping
The llvm-level tests for coverage mapping need a binary input file,
which means they're hard to understand, hard to update, and it's
difficult to add new ones. By adding some unit tests that build up the
coverage data structures in C++, we can write more meaningful and
targeted tests.

llvm-svn: 228084
2015-02-04 00:15:12 +00:00