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* llvm-cov: Removed output to STDOUT/specified file.Yuchen Wu2013-12-03
| | | | | | | | | | | | 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). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196184 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Store blocks rather than counts per line.Yuchen Wu2013-12-03
| | | | | | | | | Each line stores all the blocks that execute on that line, instead of only storing the line counts previously accumulated. This provides more information for each line, and will be useful for options in enabling block and branch information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196177 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Added edge struct for traversal in block.Yuchen Wu2013-12-03
| | | | | | | | | | | | | Added GCOVEdge which are simple structs owned by the GCOVFunction that stores the source and destination GCOVBlocks, as well as the counts. Changed GCOVBlocks so that it stores a vector of source GCOVEdges and a vector of destination GCOVEdges, rather than just the block number. Storing the block number was only useful for knowing the number of edges and for debug info. Using a struct is useful for traversing the edges, especially back edges which may be needed later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196175 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Split up reading of GCNO and GCDA files.Yuchen Wu2013-12-03
| | | | | | There are now two functions: readGCNO() and readGCDA(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196173 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: Move the constant for Debug Info Version from Dwarf.h to Metadata.h.Manman Ren2013-12-02
| | | | | | | Suggested by Eric. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196144 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: add a constant for debug info version number.Manman Ren2013-11-22
| | | | | | | This will be used to output the debug info version number as a module flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195494 91177308-0d34-0410-b5e6-96231b3b80d8
* YAML I/O add support for validate()Nick Kledzik2013-11-21
| | | | | | | | | MappingTrait template specializations can now have a validate() method which performs semantic checking. For details, see <http://llvm.org/docs/YamlIO.html>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195286 91177308-0d34-0410-b5e6-96231b3b80d8
* revert r194655Nick Kledzik2013-11-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195285 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Added file checksum to gcno and gcda files.Yuchen Wu2013-11-20
| | | | | | | | | | | | Instead of permanently outputting "MVLL" as the file checksum, clang will create gcno and gcda checksums by hashing the destination block numbers of every arc. This allows for llvm-cov to check if the two gcov files are synchronized. Regenerated the test files so they contain the checksum. Also added negative test to ensure error when the checksums don't match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195191 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Added constness property to methods.Yuchen Wu2013-11-19
| | | | | | | Added constness to methods that shouldn't modify objects. Replaced operator[] lookup in maps with find() instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195151 91177308-0d34-0410-b5e6-96231b3b80d8
* YAML I/O - Added default trait support for std:string. Making another ↵John Thompson2013-11-19
| | | | | | attempt at this, this time doing a clean build on Linux, and running the LLVM, clang, and extra tests, to try to make sure there's no problems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195134 91177308-0d34-0410-b5e6-96231b3b80d8
* [weak vtables] Remove a bunch of weak vtablesJuergen Ributzka2013-11-19
| | | | | | | | | | | | This patch removes most of the trivial cases of weak vtables by pinning them to a single object file. The memory leaks in this version have been fixed. Thanks Alexey for pointing them out. Differential Revision: http://llvm-reviews.chandlerc.com/D2068 Reviewed by Andy git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195064 91177308-0d34-0410-b5e6-96231b3b80d8
* Recover gracefully when deserializing invalid YAML input.Alexander Kornienko2013-11-18
| | | | | | | | | | Fixes http://llvm.org/PR16221, http://llvm.org/PR15927 Phabricator: http://llvm-reviews.chandlerc.com/D1236 Patch by Andrew Tulloch! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195016 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r194865 and r194874.Alexey Samsonov2013-11-18
| | | | | | | | | | | | | This change is incorrect. If you delete virtual destructor of both a base class and a subclass, then the following code: Base *foo = new Child(); delete foo; will not cause the destructor for members of Child class. As a result, I observe plently of memory leaks. Notable examples I investigated are: ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194997 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugLoc defines LineCol as 32 bit in comment but unsigned in code.Yaron Keren2013-11-17
| | | | | | | | | | This patch modifies LineCol to be a uint32_t. See http://llvm.org/bugs/show_bug.cgi?id=17957 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194957 91177308-0d34-0410-b5e6-96231b3b80d8
* [block-freq] Add BlockFrequency::scale that returns a remainder from the ↵Michael Gottesman2013-11-17
| | | | | | | | | | | | | | | | | | | | | | | | | | division and make the private scale in BlockFrequency more performant. This change is the first in a series of changes improving LLVM's Block Frequency propogation implementation to not lose probability mass in branchy code when propogating block frequency information from a basic block to its successors. This patch is a simple infrastructure improvement that does not actually modify the block frequency algorithm. The specific changes are: 1. Changes the division algorithm used when scaling block frequencies by branch probabilities to a short division algorithm. This gives us the remainder for free as well as provides a nice speed boost. When I benched the old routine and the new routine on a Sandy Bridge iMac with disabled turbo mode performing 8192 iterations on an array of length 32768, I saw ~600% increase in speed in mean/median performance. 2. Exposes a scale method that returns a remainder. This is important so we can ensure that when we scale a block frequency by some branch probability BP = N/D, the remainder from the division by D can be retrieved and propagated to other children to ensure no probability mass is lost (more to come on this). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194950 91177308-0d34-0410-b5e6-96231b3b80d8
* X86: Encode the 'h' cpu subtype in the MachO header for x86.Jim Grosbach2013-11-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194906 91177308-0d34-0410-b5e6-96231b3b80d8
* [weak vtables] Remove a bunch of weak vtablesJuergen Ributzka2013-11-15
| | | | | | | | | | | This patch removes most of the trivial cases of weak vtables by pinning them to a single object file. Differential Revision: http://llvm-reviews.chandlerc.com/D2068 Reviewed by Andy git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194865 91177308-0d34-0410-b5e6-96231b3b80d8
* Path: Recognize COFF import library file magic.Rui Ueyama2013-11-15
| | | | | | | | | | | | Summary: Make identify_magic to recognize COFF import file. Reviewers: Bigcheese CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2165 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194852 91177308-0d34-0410-b5e6-96231b3b80d8
* Include raw_ostream.h.Rui Ueyama2013-11-15
| | | | | | | | | | | Including only Debug.h did not cause a compilation error, but you couldn't do anything (like writing something with <<) to raw_ostreams returned by llvm::dbgs() or llvm::errs() without including raw_ostream.h. So including it from Debug.h should make sense. Differential Revision: http://llvm-reviews.chandlerc.com/D2183 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194759 91177308-0d34-0410-b5e6-96231b3b80d8
* Add dyn_cast<> support to YAML I/O's IO classNick Kledzik2013-11-14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194655 91177308-0d34-0410-b5e6-96231b3b80d8
* Add simple support for tags in YAML I/ONick Kledzik2013-11-14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194644 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Slightly improved error checking.Yuchen Wu2013-11-14
| | | | | | | | - readInt() should check all 4 bytes can be read, not just 1. - In the event of false data in the gcno file, it was possible to index into a non-existent index of SmallVector, causing assertion error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194639 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Removed StringMap holding GCOVLines.Yuchen Wu2013-11-14
| | | | | | | | | | | | | | | | | According to the hazy gcov documentation, it appeared to be technically possible for lines within a block to belong to different source files. However, upon further investigation, gcov does not actually support multiple source files for a single block. This change removes a level of separation between blocks and lines by replacing the StringMap of GCOVLines with a SmallVector of ints representing line numbers. This also means that the GCOVLines class is no longer needed. This paves the way for supporting the "-a" option, which will output block information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194637 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Replaced asserts with proper error handling.Yuchen Wu2013-11-14
| | | | | | | | | | | | | | Unified the interface for read functions. They all return a boolean indicating if the read from file succeeded. Functions that previously returned the read value now store it into a variable that is passed in by reference instead. Callers will need to check the return value to detect if an error occurred. Also added a new test which ensures that no assertions occur when file contains invalid data. llvm-cov should return with error code 1 upon failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194635 91177308-0d34-0410-b5e6-96231b3b80d8
* Removing llvm::huge_vald and llvm::huge_vall because they are not currently ↵Aaron Ballman2013-11-13
| | | | | | used, and HUGE_VALD does not appear to be supported everywhere anyways. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194535 91177308-0d34-0410-b5e6-96231b3b80d8
* Replacing HUGE_VALF with llvm::huge_valf in order to work around a warning ↵Aaron Ballman2013-11-13
| | | | | | | | triggered in MSVC 12. Patch reviewed by Reid Kleckner and Jim Grosbach. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194533 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Remove unused variable."Rafael Espindola2013-11-12
| | | | | | | | | This reverts commit r194485. The variable is unused in some macro instantiations, but not others. We should probably fix clang to not warn on this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194486 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused variable.Rafael Espindola2013-11-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194485 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't universally enable initialiser lists on GCC. Thanks for catching this ↵Pete Cooper2013-11-11
| | | | | | Chandler git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194365 91177308-0d34-0410-b5e6-96231b3b80d8
* Add LLVM_HAS_INITIALIZER_LISTS for upcoming C++11 support. Use it in ArrayRefPete Cooper2013-11-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194362 91177308-0d34-0410-b5e6-96231b3b80d8
* Add DT_VERSYM dynamic table entry tag definition.Simon Atanasyan2013-11-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194149 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove another unused, and IMHO, not very desirable feature of ErrorOr.Rafael Espindola2013-11-05
| | | | | | | | | | | | | | | | | | One of the uses of the IsValid flag is to support default constructing a ErrorOr that is not a Error or a Value. There is not much value in doing that IMHO. If ErrorOr was to have a default constructor, it should be implemented by default constructing the value, but even that looks unnecessary. The other use is to avoid calling destructors on moved objects. This looks wrong. If the data being moved has non trivial treatment of moves (an std::vector for example), it is its destructor that should handle it, not ~ErrorOr. With this change ErrorOr becomes a fairly simple wrapper and should always be better than using an error_code + value in an API. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194109 91177308-0d34-0410-b5e6-96231b3b80d8
* Support for reading run counts in llvm-cov.Yuchen Wu2013-11-05
| | | | | | | | | | | | This patch enables llvm-cov to correctly output the run count stored in the GCDA file. GCOVProfiling currently does not generate this information, so the GCDA run data had to be hacked on from a GCDA file generated by gcc. This is corrected by a subsequent patch. With the run and program data included, both llvm-cov and gcov produced the same output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194033 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix MSVC build by not putting an error_code directly in a union.Rafael Espindola2013-11-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194032 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify ErrorOr.Rafael Espindola2013-11-05
| | | | | | | | | | | | | | | | ErrorOr had quiet a bit of complexity and indirection to be able to hold a user type with the error. That feature is not used anymore. This patch removes it, it will live in svn history if we ever need it again. If we do need it again, IMHO there is one thing that should be done differently: Holding extra info in the error is not a property a function also returning a value or not. The ability to hold extra info should be in the error type and ErrorOr templated over it so that we don't need the funny looking ErrorOr<void>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194030 91177308-0d34-0410-b5e6-96231b3b80d8
* Support for microMIPS branch instructions.Zoran Jovanovic2013-11-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193992 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the pretty stack trace be an opt-in, rather than opt-out, facility. ↵Filip Pizlo2013-11-04
| | | | | | | | | | | Enable pretty stack traces by default if you use PrettyStackTraceProgram, so that existing LLVM-based tools will continue to get it without any changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193971 91177308-0d34-0410-b5e6-96231b3b80d8
* Added command-line option to output llvm-cov to file.Yuchen Wu2013-11-02
| | | | | | | Added -o option to llvm-cov. If no output file is specified, it defaults to STDOUT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193899 91177308-0d34-0410-b5e6-96231b3b80d8
* [Mips] Add more SHF_MIPS_xxx ELF section flags.Simon Atanasyan2013-10-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193713 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove declared but not implemented function.Rafael Espindola2013-10-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193637 91177308-0d34-0410-b5e6-96231b3b80d8
* Support for microMIPS jump instructionsZoran Jovanovic2013-10-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193623 91177308-0d34-0410-b5e6-96231b3b80d8
* Change MemoryBuffer::getFile to take a Twine.Rafael Espindola2013-10-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193429 91177308-0d34-0410-b5e6-96231b3b80d8
* DIEHash: Summary hashing of nested typesDavid Blaikie2013-10-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193427 91177308-0d34-0410-b5e6-96231b3b80d8
* Support for reading program counts in llvm-cov.Yuchen Wu2013-10-25
| | | | | | | | | | | | | llvm-cov will now be able to read program counts from the GCDA file and output it in the same format as gcov. The program summary tag was identified from gcov-io.h as "\0\0\0\a3". There is currently a bug in GCOVProfiling.cpp which does not generate the run- or program-counting IR, so this change was tested manually by modifying the GCDA file and comparing the gcov and llvm-cov outputs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193389 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverting my r193344 checkin due to build breakage.John Thompson2013-10-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193350 91177308-0d34-0410-b5e6-96231b3b80d8
* Added std::string as a built-in type for mapping.John Thompson2013-10-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193344 91177308-0d34-0410-b5e6-96231b3b80d8
* Include missing Compiler.h for using LLVM_ENUM_INT_TYPE.Zonr Chang2013-10-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193315 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed llvm-cov to count edges instead of blocks.Yuchen Wu2013-10-24
| | | | | | | | | | | | | | | | | This was a fundamental flaw in llvm-cov where it treated the values in the GCDA files as block counts instead of edge counts. This created incorrect line counts when branching was present. Instead, the edge counts should be summed to obtain the correct block count. The fix was tested using custom test files as well as single source files from the test-suite directory. The behaviour can be verified by reading the GCOV documentation that describes the GCDA spec ("ARC_COUNTS gives the counter values for those arcs that are instrumented") and the header description provided by GCOVProfiling.cpp ("instruments the code that runs to records (sic) the edges between blocks that run and emit a complementary "gcda" file on exit"). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193299 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a map instead of vector to store line counts.Yuchen Wu2013-10-23
| | | | | | | | | | | | There are a few motivations for this: - Using a map allows for checking if line is in map. This differentiates unexecutable lines (such as comments) from unexecuted logical lines of code. "#####" is now outputted in this case, in line with gcov. - Source files are no longer read in twice: once when storing the line counts, and once when outputting the data. - Greatly simplifies the function FileInfo::addLineCount(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193264 91177308-0d34-0410-b5e6-96231b3b80d8
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