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* [PGO] eliminate use of static variableXinliang David Li2016-01-221-55/+60
| | | | llvm-svn: 258486
* Fix a bug in testXinliang David Li2016-01-201-2/+2
| | | | llvm-svn: 258276
* [PGO] Add a new interface to be used by Indirect Call PromotionXinliang David Li2016-01-201-0/+36
| | | | llvm-svn: 258271
* InstrProfTest.cpp: Fix a warning. [-Wsign-compare]NAKAMURA Takumi2016-01-081-1/+1
| | | | llvm-svn: 257157
* Add value site truncation unit testXinliang David Li2016-01-081-10/+56
| | | | llvm-svn: 257153
* [PGO] Ensure vp data in indexed profile always sortedXinliang David Li2016-01-081-28/+0
| | | | | | | | | Done in InstrProfWriter to eliminate the need for client code to do the sorting. The operation is done once and reused many times so it is more efficient. Update unit test to remove sorting. Also update expected output of affected tests. llvm-svn: 257145
* [PGO] Fix a bug in InstProfWriter addRecordXinliang David Li2016-01-081-0/+56
| | | | | | | | | | For a new record with weight != 1, only edge profiling counters are scaled, VP data is not properly scaled. This patch refactors the code and fixes the problem. Also added sort by count interface (for follow up patch). llvm-svn: 257143
* Add explicit string checks in testXinliang David Li2016-01-041-2/+15
| | | | llvm-svn: 256796
* [PGO]: Implement Func PGO name string compressionXinliang David Li2015-12-311-0/+61
| | | | | | | | | | This is part of the effort/prepration to reduce the size instr-pgo (object, binary, memory footprint, and raw data). The functionality is currently off by default and not yet used by any clients. llvm-svn: 256667
* InstrProfTest.cpp: Don't assume string literals are always merged.NAKAMURA Takumi2015-12-271-29/+37
| | | | | | | MSC18 Debug didn't merge them. FIXME: I tweaked just to appease a builder. Almost string literals should be addressed identically there. llvm-svn: 256459
* Improve InstrProfSymtab test coverageXinliang David Li2015-12-191-0/+27
| | | | llvm-svn: 256099
* [PGO] Add hash to name mapping in InstrProfSymtabXinliang David Li2015-12-191-0/+24
| | | | | | | | | Creator and lookup interfaces are added to this symtab class. The new interfaces will be used by InstrProf Readers and writer. A unit test is also added for the new APIs. llvm-svn: 256092
* [PGO] Handle and report overflow during profile merge for all types of dataNathan Slingerland2015-12-162-29/+68
| | | | | | | | | | | | Summary: Surface counter overflow when merging profile data. Merging still occurs on overflow but counts saturate to the maximum representable value. Overflow is reported to the user. Reviewers: davidxl, dnovillo, silvas Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D15547 llvm-svn: 255825
* [llvm-profdata] Add support for weighted merge of profile data (2nd try)Nathan Slingerland2015-12-151-2/+27
| | | | | | | | | | | | | | | | | | | | Summary: This change adds support for specifying a weight when merging profile data with the llvm-profdata tool. Weights are specified by using the --weighted-input=<weight>,<filename> option. Input files not specified with this option (normal positional list after options) are given a default weight of 1. Adding support for arbitrary weighting of input profile data allows for relative importance to be placed on the input data from multiple training runs. Both sampled and instrumented profiles are supported. Reviewers: davidxl, dnovillo, bogner, silvas Subscribers: silvas, davidxl, llvm-commits Differential Revision: http://reviews.llvm.org/D15306 llvm-svn: 255659
* [ProfileData] Add unit test infrastructure for sample profile reader/writerNathan Slingerland2015-12-102-0/+103
| | | | | | | | | | | | | | | Summary: Adds support for in-memory round-trip of sample profile data along with basic round trip unit tests. This will also make it easier to include unit tests for future changes to sample profiling. Reviewers: davidxl, dnovillo, silvas Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D15211 llvm-svn: 255264
* Revert "[llvm-profdata] Add support for weighted merge of profile data"Nathan Slingerland2015-12-041-20/+0
| | | | | | | | This reverts commit b7250858d96b8ce567681214273ac0e62713c661. Reverting in order to investigate Windows test failure. llvm-svn: 254687
* [llvm-profdata] Add support for weighted merge of profile dataNathan Slingerland2015-12-041-0/+20
| | | | | | | | | | | | | | | | | | This change adds support for an optional weight when merging profile data with the llvm-profdata tool. Weights are specified by adding an option ':<weight>' suffix to the input file names. Adding support for arbitrary weighting of input profile data allows for relative importance to be placed on the input data from multiple training runs. Both sampled and instrumented profiles are supported. Reviewers: dnovillo, bogner, davidxl Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D14547 llvm-svn: 254669
* [llvm-profdata] Change instr prof counter overflow to saturate rather than ↵Nathan Slingerland2015-12-021-1/+4
| | | | | | | | | | | | | | discard Summary: This changes overflow handling during instrumentation profile merge. Rathar than throwing away records that would result in counter overflow, merged counts are instead clamped to the maximum representable value. A warning about counter overflow is still surfaced to the user as before. Reviewers: dnovillo, davidxl, silvas Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D14893 llvm-svn: 254525
* Use nullptr (NFC)Xinliang David Li2015-12-011-1/+1
| | | | llvm-svn: 254447
* [PGO] Allow value profile writer interface to allocated target buffer Xinliang David Li2015-11-281-1/+1
| | | | | | | | | Raw profile writer needs to write all data of one kind in one continuous block, so the buffer needs to be pre-allocated and passed to the writer method in pieces for function profile data. The change adds the support for raw value data writing. llvm-svn: 254219
* [PGO] Implement ValueProfiling Closure interfaces for runtime value profile dataXinliang David Li2015-11-251-0/+92
| | | | | | | | | | | | | | | | This is one of the many steps to commonize value profiling support between profile runtime and compiler/llvm tools. After this change, profiler runtime now can share the same C APIs to do VP serialization/deseriazation with LLVM host tools (and produces value data in identical format between indexed and raw profile). It is not yet enabled in profiler runtime yet. Also added a unit test case to test runtime profile data serialization/deserialization interfaces implemented using common closure code. llvm-svn: 254110
* Revert the revert 253497 and 253539 - These commits aren't the cause of the ↵Daniel Sanders2015-11-201-0/+32
| | | | | | | | clang-cmake-mips failures. Sorry for the noise. llvm-svn: 253662
* Revert 253497 and 253539 to try to fix clang-cmake-mips buildbot.Daniel Sanders2015-11-201-32/+0
| | | | | | | | | | It caused link errors of the form: InstrProfiling.c:(.text.__llvm_profile_instrument_target+0x1c0): undefined reference to `__sync_fetch_and_add_8' We had a network outage at the time of the commit so the first build to show a problem is http://lab.llvm.org:8011/builders/clang-cmake-mips/builds/10827 llvm-svn: 253656
* [llvm-profdata] Add SaturatingAdd/SaturatingMultiply Helper Functions (2nd try)Nathan Slingerland2015-11-181-0/+32
| | | | | | | | | | | | | Summary: This change adds MathExtras helper functions for handling unsigned, saturating addition and multiplication. It also updates the instrumentation and sample profile merge implementations to use them. Reviewers: dnovillo, bogner, davidxl Subscribers: davidxl, llvm-commits Differential Revision: http://reviews.llvm.org/D14720 llvm-svn: 253497
* [PGO] Make indexed value profile data more compactXinliang David Li2015-11-101-1/+58
| | | | | | | | | | | | | | | | - Make indexed value profile data more compact by peeling out the per-site value count field into its own smaller sized array. - Introduced formal data structure definitions to specify value profile data layout in indexed format. Previously the layout of the data is only assumed in the client code (scattered in three different places : size computation, EmitData, and ReadData - The new data structure serves as a central place for layout documentation. - Add interfaces to force BE output for value profile data (testing purpose) - Add byte swap unit tests Differential Revision: http://reviews.llvm.org/D14401 llvm-svn: 252563
* Fix some Clang-tidy modernize warnings, other minor fixes.Eugene Zelenko2015-11-041-15/+15
| | | | | | | | Fixed warnings are: modernize-use-override, modernize-use-nullptr and modernize-redundant-void-arg. Differential revision: http://reviews.llvm.org/D14312 llvm-svn: 252087
* [PGO] Value profiling (index format) code cleanup and testingXinliang David Li2015-11-021-0/+199
| | | | | | | | | | | | | | | | | 1. Added a set of public interfaces in InstrProfRecord class to access (read/write) value profile data. 2. Changed IndexedProfile reader and writer code to use the newly defined interfaces and hide implementation details. 3. Added a couple of unittests for value profiling: - Test new interfaces to get and set value profile data - Test value profile data merging with various scenarios. No functional change is expected. The new interfaces will also make it possible to change on-disk format of value prof data to be more compact (to be submitted). llvm-svn: 251771
* InstrProf: Support for value profiling in the indexed profile formatJustin Bogner2015-09-292-10/+20
| | | | | | | | | 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
* InstrProf: Add a test for multiple copies of the same with different hashesJustin Bogner2015-06-221-0/+6
| | | | | | | | This functionality wasn't being tested. Patch by Betul Buyukkurt. llvm-svn: 240359
* InstrProf: Treat functions with a coverage map but no profile as unreachedJustin Bogner2015-05-131-0/+15
| | | | | | | | | | 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
* InstrProf: Strip filename prefixes from the names we display for coverageJustin Bogner2015-05-051-0/+14
| | | | | | | 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
* InstrProf: Don't combine expansion regions with code regionsJustin Bogner2015-02-181-0/+37
| | | | | | | | 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
* InstrProf: Handle unknown functions if they consist only of zero-regionsJustin Bogner2015-02-181-0/+13
| | | | | | | | | | 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
* InstrProf: Make CoverageMapping testable and add a basic unit testJustin Bogner2015-02-181-0/+82
| | | | | | | | 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
* Re-apply "InstrProf: Add unit tests for the profile reader and writer"Justin Bogner2015-02-182-0/+99
| | | | | | | | | | | | | | Have the InstrProfWriter return a MemoryBuffer instead of a std::string. This fixes the alignment issues the reader would hit, and it's a more appropriate type for this anyway. I've also removed an ugly helper function that's not needed since we're allowing initializer lists now, and updated some error code checks based on MSVC's issues with r229473. This reverts r229483, reapplying r229478. llvm-svn: 229602
* Re-apply "InstrProf: Use a test fixture in the coverage mapping tests"Justin Bogner2015-02-171-67/+81
| | | | | | | | | | 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
* Reverting r229473; it does not compile with MSVC 2013, and I suspect it was ↵Aaron Ballman2015-02-171-77/+69
| | | | | | meant to be reverted in r229483. llvm-svn: 229496
* Revert "InstrProf: Add unit tests for the profile reader and writer"Justin Bogner2015-02-172-98/+0
| | | | | | | | | | This added API to the InstrProfWriter to write to a string so I could write unittests without using temp files. This doesn't really work, since the format has tighter alignment requirements than a char. This reverts r229478 and its follow-up, r229481. llvm-svn: 229483
* InstrProf: Add missing header from r229478Justin Bogner2015-02-171-0/+2
| | | | llvm-svn: 229481
* Re-apply "InstrProf: Add unit tests for the profile reader and writer"Justin Bogner2015-02-172-0/+96
| | | | | | | | Add these tests again, but use va_list instead of initializer lists. This reverts r229456, reapplying r229455. llvm-svn: 229478
* InstrProf: Use a test fixture in the coverage mapping testsJustin Bogner2015-02-171-69/+77
| | | | llvm-svn: 229473
* Revert "InstrProf: Add unit tests for the profile reader and writer"Justin Bogner2015-02-162-89/+0
| | | | | | | | Looks like the bots don't like my initializer lists. This reverts r229455 llvm-svn: 229456
* InstrProf: Add unit tests for the profile reader and writerJustin Bogner2015-02-162-0/+89
| | | | | | | | | | This required some minor API to be added to these types to avoid needing temp files. Also, I've used initializer lists in the tests, as MSVC 2013 claims to support them. I'll redo this without them if the bots complain. llvm-svn: 229455
* InstrProf: Avoid using std::to_stringJustin Bogner2015-02-051-2/+4
| | | | | | | | | 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
* InstrProf: std::to_string needs to #include <string>Justin Bogner2015-02-041-0/+2
| | | | llvm-svn: 228136
* InstrProf: Add some unit tests for CoverageMappingJustin Bogner2015-02-043-0/+136
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
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