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path: root/lib/Transforms/Instrumentation/GCOVProfiling.cpp
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* Revert "Introduce a string_ostream string builder facilty"Alp Toker2014-06-26
| | | | | | Temporarily back out commits r211749, r211752 and r211754. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211814 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce a string_ostream string builder faciltyAlp Toker2014-06-26
| | | | | | | | | | | | | | | | | | | | string_ostream is a safe and efficient string builder that combines opaque stack storage with a built-in ostream interface. small_string_ostream<bytes> additionally permits an explicit stack storage size other than the default 128 bytes to be provided. Beyond that, storage is transferred to the heap. This convenient class can be used in most places an std::string+raw_string_ostream pair or SmallString<>+raw_svector_ostream pair would previously have been used, in order to guarantee consistent access without byte truncation. The patch also converts much of LLVM to use the new facility. These changes include several probable bug fixes for truncated output, a programming error that's no longer possible with the new interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211749 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix coverage for files with global constructors again. Adds a testcase to ↵Nick Lewycky2014-06-05
| | | | | | the commit from r206671, as requested by David Blaikie. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210239 91177308-0d34-0410-b5e6-96231b3b80d8
* Explain why we skip DbgInfoIntrinsics when looking at line numbers in .gcno ↵Nick Lewycky2014-06-04
| | | | | | file emission. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210218 91177308-0d34-0410-b5e6-96231b3b80d8
* Ignore line numbers on debug intrinsics. Add an assert to ensure that we ↵Nick Lewycky2014-06-03
| | | | | | aren't emitting line number zero, the .gcno format uses this to indicate that the next field is a filename. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210068 91177308-0d34-0410-b5e6-96231b3b80d8
* [Modules] Fix potential ODR violations by sinking the DEBUG_TYPEChandler Carruth2014-04-22
| | | | | | | | | | | | | | | | | definition below all of the header #include lines, lib/Transforms/... edition. This one is tricky for two reasons. We again have a couple of passes that define something else before the includes as well. I've sunk their name macros with the DEBUG_TYPE. Also, InstCombine contains headers that need DEBUG_TYPE, so now those headers #define and #undef DEBUG_TYPE around their code, leaving them well formed modular headers. Fixing these headers was a large motivation for all of these changes, as "leaky" macros of this form are hard on the modules implementation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206844 91177308-0d34-0410-b5e6-96231b3b80d8
* Use unique_ptr to handle ownership of GCOVFunctions in GCOVProfiler.David Blaikie2014-04-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206786 91177308-0d34-0410-b5e6-96231b3b80d8
* Check whether functions have any lines associated before emitting coverage ↵Nick Lewycky2014-04-18
| | | | | | info for them. This isn't just a size/time saving, gcov may crash on these. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206671 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup whitespaceDuncan P. N. Exon Smith2014-03-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203529 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace OwningPtr<T> with std::unique_ptr<T>.Ahmed Charles2014-03-06
| | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203083 91177308-0d34-0410-b5e6-96231b3b80d8
* [Layering] Move DebugInfo.h into the IR library where its implementationChandler Carruth2014-03-06
| | | | | | already lives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203046 91177308-0d34-0410-b5e6-96231b3b80d8
* [Layering] Move DebugLoc.h into the IR library. The implementationChandler Carruth2014-03-05
| | | | | | | | | | | already lived there and it is where it belongs -- this is the in-memory debug location representation. This is just cleanup -- Modules can actually cope with this, but that doesn't make it right. After chatting with folks that have out-of-tree stuff, going ahead and moving the rest of the headers seems preferable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202960 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++11] Add 'override' keyword to virtual methods that override their base ↵Craig Topper2014-03-05
| | | | | | class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202953 91177308-0d34-0410-b5e6-96231b3b80d8
* [Modules] Move InstIterator out of the Support library, where it had noChandler Carruth2014-03-04
| | | | | | | | | | | | | business. This header includes Function and BasicBlock and directly uses the interfaces of both classes. It has to do with the IR, it even has that in the name. =] Put it in the library it belongs to. This is one step toward making LLVM's Support library survive a C++ modules bootstrap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202814 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++11] Replace llvm::next and llvm::prior with std::next and std::prev.Benjamin Kramer2014-03-02
| | | | | | Remove the old functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202636 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that we have C++11, turn simple functors into lambdas and remove a ton ↵Benjamin Kramer2014-03-01
| | | | | | | | of boilerplate. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202588 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace the F_Binary flag with a F_Text one.Rafael Espindola2014-02-24
| | | | | | | | | After this I will set the default back to F_None. The advantage is that before this patch forgetting to set F_Binary would corrupt a file on windows. Forgetting to set F_Text produces one that cannot be read in notepad, which is a better failure mode :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202052 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in gcov instrumentation introduced by r195513. <rdar://15930350>Bob Wilson2014-01-31
| | | | | | | | | | The entry block of a function starts with all the static allocas. The change in r195513 splits the block before those allocas, which has the effect of turning them into dynamic allocas. That breaks all sorts of things. Change to split after the initial allocas, and also add a comment explaining why the block is split. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200515 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Replace size() with empty() in bool check.Yuchen Wu2013-12-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196400 91177308-0d34-0410-b5e6-96231b3b80d8
* Un-revert r196358: "llvm-cov: Added support for function checksums."Daniel Jasper2013-12-04
| | | | | | And add the proper fix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196367 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r196358: "llvm-cov: Added support for function checksums."Daniel Jasper2013-12-04
| | | | | | | This currently breaks clang/test/CodeGen/code-coverage.c. The root cause is that the newly introduced access to Funcs[j] is out of bounds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196365 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Added support for function checksums.Yuchen Wu2013-12-04
| | | | | | | The function checksums are hashed from the concatenation of the function name and line number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196358 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Split entry blocks in GCNOProfiling.cpp.Yuchen Wu2013-11-22
| | | | | | | | | | | | | gcov expects every function to contain an entry block that unconditionally branches into the next block. clang does not implement basic blocks in this manner, so gcov did not output correct branch info if the entry block branched to multiple blocks. This change splits every function's entry block into an empty block and a block with the rest of the instructions. The instrumentation code will take care of the rest. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195513 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Don't assume FileChecksum was generated.Yuchen Wu2013-11-21
| | | | | | | For cases where emitProfileArcs() was called but emitProfileNotes() was not, set the CfgChecksum to 0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195311 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-cov: Fixed some bugs related to file checksum.Yuchen Wu2013-11-21
| | | | | | | Added call to update CfgChecksum. Made FileChecksum a vector, separate for each source file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195309 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 call to update run/program counts.Yuchen Wu2013-11-12
| | | | | | Also updated test files that were generated from this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194453 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed comment typo in GCOVProfiling.cppYuchen Wu2013-10-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193268 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove lib/Transforms/Instrumentation/ProfilingUtils.*Rafael Espindola2013-10-14
| | | | | | | | They were leftover from the old profiling support. Patch by Alastair Murray. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192605 91177308-0d34-0410-b5e6-96231b3b80d8
* Move registering the execution of a basic block to the beginning rather than ↵Bill Wendling2013-08-20
| | | | | | | | | | | | | | | | | | the end. There are situations which can affect the correctness (or at least expectation) of the gcov output. For instance, if a call to __gcov_flush() occurs within a block before the execution count is registered and then the program aborts in some way, then that block will not be marked as executed. This is not normally what the user expects. If we move the code that's registering when a block is executed to the beginning, we can catch these types of situations. PR16893 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188849 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark a method 'const' and another 'static'.Craig Topper2013-07-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186485 91177308-0d34-0410-b5e6-96231b3b80d8
* Make a few more static string pointers constant.Craig Topper2013-07-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186484 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a wrapper for open.Rafael Espindola2013-07-16
| | | | | | | This centralizes the handling of O_BINARY and opens the way for hiding more differences (like how open behaves with directories). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186447 91177308-0d34-0410-b5e6-96231b3b80d8
* Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid ↵Craig Topper2013-07-04
| | | | | | specifying the vector size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185606 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: clean up usage of Verify.Manman Ren2013-06-28
| | | | | | | | | | | | No functionality change. It should suffice to check the type of a debug info metadata, instead of calling Verify. For cases where we know the type of a DI metadata, use assert. Also update testing cases to make them conform to the format of DI classes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185135 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Debug Info: clean up usage of Verify." as it's breaking bots.Eric Christopher2013-06-26
| | | | | | This reverts commit r185020 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185032 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: clean up usage of Verify.Manman Ren2013-06-26
| | | | | | | | | No functionality change. It should suffice to check the type of a debug info metadata, instead of calling Verify. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185020 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix nondeterminism in .gcno file generation.Nick Lewycky2013-06-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184174 91177308-0d34-0410-b5e6-96231b3b80d8
* Move PathV2.h to Path.hRafael Espindola2013-06-11
| | | | | | | Most clients have already been moved from Path V1 to V2. The ones using V1 now include PathV1.h explicitly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183801 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor simplification.Bill Wendling2013-03-28
| | | | | | | Go ahead and use the full path for both the .gcno and .gcda files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178302 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the full path when outputting the `.gcda' file.Bill Wendling2013-03-26
| | | | | | | | | | | | | | | If we compile a single source program, the `.gcda' file will be generated where the program was executed. This isn't desirable, because that place may be at an unpredictable place (the program could call `chdir' for instance). Instead, we will output the `.gcda' file in the same place we output the `.gcno' file. I.e., the directory where the executable was generated. This matches GCC's behavior. <rdar://problem/13061072> & PR11809 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178084 91177308-0d34-0410-b5e6-96231b3b80d8
* Call the new llvm_gcov_init function to register the environment.Bill Wendling2013-03-20
| | | | | | | | | | | | Use the new `llvm_gcov_init' function to register the writeout and flush functions. The initialization function will also call `atexit' for some cleanups and final writout calls. But it does this only once. This is better than checking for the `main' function, because in a library that function may not exist. <rdar://problem/12439551> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177579 91177308-0d34-0410-b5e6-96231b3b80d8
* Register the GCOV writeout functions so that they're emitted serially.Bill Wendling2013-03-19
| | | | | | | | | | We don't want to write out >1000 files at the same time. That could make things prohibitively expensive. Instead, register the "writeout" function so that it's emitted serially. <rdar://problem/12439551> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177437 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit the linkage name instead of the function name, when available. This meansNick Lewycky2013-03-19
| | | | | | | that we'll prefer to emit the mangled C++ name (pending a clang change). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177371 91177308-0d34-0410-b5e6-96231b3b80d8
* Register the flush function for each compile unit.Bill Wendling2013-03-18
| | | | | | | | | | | For each compile unit, we want to register a function that will flush that compile unit. Otherwise, __gcov_flush() would only flush the counters within the current compile unit, and not any outside of it. PR15191 & <rdar://problem/13167507> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177340 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove accidentally committed debug line.Nick Lewycky2013-03-14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177005 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor GCOV's six constructor arguments into a struct with a getter thatNick Lewycky2013-03-14
| | | | | | | | | | | constructs default arguments. It can now take default arguments from cl::opt'ions. Add a new -default-gcov-version=... option, and actually test it! Sink the reverse-order of the version into GCOVProfiling, hiding it from our users. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177002 91177308-0d34-0410-b5e6-96231b3b80d8
* No functionality change. Rename emitGCNO() to the more sensibleNick Lewycky2013-03-13
| | | | | | | | | | emitProfileNotes(), similar to emitProfileArcs(). Also update its comment. Also add a comment on Version[4] (there will be another comment in clang later), and compress lines that exceeded 80 columns. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176994 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the correct index variable. This is the meat of what was supposed to be inNick Lewycky2013-03-09
| | | | | | | r176751. Also, learn a lesson about applying patches by hand/eyeball. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176764 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix bug introduced in r176616 when making function identifier numbers stable.Nick Lewycky2013-03-09
| | | | | | | Count the subprograms, not the compile units. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176751 91177308-0d34-0410-b5e6-96231b3b80d8
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