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* [ThinLTO] Add option to emit imports files for distributed backendsTeresa Johnson2016-05-102-0/+44
| | | | | | | | | | | | | | | | | | | | | Summary: Add support for emission of plaintext lists of the imported files for each distributed backend compilation. Used for distributed build file staging. Invoked with new gold-plugin thinlto-emit-imports-files option, which is only valid with thinlto-index-only (i.e. for distributed builds), or from llvm-lto with new -thinlto-action=emitimports value. Depends on D19556. Reviewers: joker.eph Subscribers: llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D19636 llvm-svn: 269067
* Restore "[ThinLTO] Emit individual index files for distributed backends"Teresa Johnson2016-05-102-29/+107
| | | | | | | | | | | | | | | | | | | This restores commit r268627: Summary: When launching ThinLTO backends in a distributed build (currently supported in gold via the thinlto-index-only plugin option), emit an individual index file for each backend process as described here: http://lists.llvm.org/pipermail/llvm-dev/2016-April/098272.html ... Differential Revision: http://reviews.llvm.org/D19556 Address msan failures by avoiding std::prev on map.end(), the theory is that this is causing issues due to some known UB problems in __tree. llvm-svn: 269059
* llc: Print+Verify machine function after loading itMatthias Braun2016-05-101-0/+1
| | | | | | | | In -run-pass mode verify/print machine function immediately after loading the .mir file if -verify-machineinstr/-print-machineinstrs option is specified. llvm-svn: 269014
* CodeGen: Move TargetPassConfig from Passes.h to an own header; NFCMatthias Braun2016-05-101-0/+1
| | | | | | | | Many files include Passes.h but only a fraction needs to know about the TargetPassConfig class. Move it into an own header. Also rename Passes.cpp to TargetPassConfig.cpp while we are at it. llvm-svn: 269011
* Try to appease clang-x64-ninja-win7 bot.Matthias Braun2016-05-101-0/+1
| | | | | | | Looks like you need the complete definition of "X" when calling a "X &func()" declared function even when not using the result further. llvm-svn: 269006
* llc: Rework -run-pass optionMatthias Braun2016-05-101-8/+35
| | | | | | | | | | | | We now construct a custom pass pipeline instead of injecting start-before/stop-after into the default pipeline construction. This allows to specify any pass known to the pass registry. Previously specifying indirectly added analysis passes or passes not added to the pipeline add all would not be added and we would silently do nothing. This also restricts the -run-pass option to cases with .mir input. llvm-svn: 269003
* Fix build error with ambiguity of size_t.Zachary Turner2016-05-091-1/+1
| | | | llvm-svn: 268948
* [pdb] Parse the module info stream for each module.Zachary Turner2016-05-091-11/+31
| | | | | | | Differential Revision: http://reviews.llvm.org/D20026 Reviewed By: rnk llvm-svn: 268942
* Make TypeIterator generic so it can iterate symbols too.Zachary Turner2016-05-091-1/+1
| | | | | | | Reviewed By: amccarth Differential Revision: http://reviews.llvm.org/D20038 llvm-svn: 268941
* [dsymutil] Prevent use-after-freeFrederic Riss2016-05-092-2/+5
| | | | | | | | | | | | The BinaryHolder would query the archive member MemoryBuffer name to check if the current open archive also contains the next requested objectfile. This comparison was using a StringRef to a temporary buffer. It only happened with fat archives. This commit adds long-lived storage along with the MemoryBuffers for the fat archive filename. The added test would fail during an ASAN build without the fix. llvm-svn: 268924
* Fix bug where temporary file would be left behind every time an archive was ↵Rafael Espindola2016-05-091-7/+13
| | | | | | | | | | | | | | | | | | | updated. When updating an existing archive, llvm-ar opens the old archive into a `MemoryBuffer`, does its thing, and writes the results to a temporary file. That file is then renamed to the original archive filename, thus replacing it with the updated contents. However, on Windows at least, what would happen is that the `MemoryBuffer` for the old archive would actually be an mmap'ed view of the file, so when it came time to do the rename via Win32's `ReplaceFile`, it would succeed but would be unable to fully replace the file since there would still be a handle open on it; instead, the old version got renamed to a random temporary name and left behind. Patch by Cameron! llvm-svn: 268916
* [dsymutil] Fix -arch option for thumb variants.Frederic Riss2016-05-091-1/+5
| | | | | | | | | | r267249 removed the dual ARM/Thumb interface from MachOObjectFile, simplifying llvm-dsymutil's code. This unfortunately also regressed llvm-dsymutil's ability to select thumb slices, because the simplified code was also dealing with the discrepency between the slice arch (eg. armv7m) and the triple arch name (eg. thumbv7m). llvm-svn: 268894
* [Orc] Fix missing rename from r268845.Lang Hames2016-05-071-1/+1
| | | | llvm-svn: 268846
* [Orc] Rename OrcArchitectureSupport to OrcABISupport and add Win32 ABI support.Lang Hames2016-05-072-9/+22
| | | | | | | | This enables lazy JITing on Windows x86-64. Patch by David. Thanks David! llvm-svn: 268845
* Make llvm-pdbdump print CV type recordsZachary Turner2016-05-062-10/+17
| | | | | | | | | | This reuses the CVTypeDumper from libcodeview to dump full information about type records within a PDB file. Differential Revision: http://reviews.llvm.org/D20022 Reviewed By: rnk llvm-svn: 268808
* Port DebugInfoPDB over to using llvm::Error.Zachary Turner2016-05-061-65/+75
| | | | | | | Differential Revision: http://reviews.llvm.org/D19940 Reviewed By: rnk llvm-svn: 268791
* Revert "[ThinLTO] Emit individual index files for distributed backends"Vitaly Buka2016-05-052-107/+29
| | | | | | | | | MemorySanitizer: use-of-uninitialized-value in lib/Bitcode/Writer/BitcodeWriter.cpp:364:70 http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/12544/steps/check-llvm%20msan/logs/stdio This reverts commit 0c4a898ea550699d1b2f4fe3767251c8f9a48d52. llvm-svn: 268660
* Clean up the specific error message for a malformed Mach-O files with bad ↵Kevin Enderby2016-05-051-2/+2
| | | | | | | | | | | | | | | | | | | | | segment load commands. The existing test case in test/Object/macho-invalid.test for macho-invalid-too-small-segment-load-command has a cmdsize of 55, while being too small also it is not a multiple of 4. So when that check is added this test case will produce a different error. So I constructed a new test case that will trigger the intended error. I also changed the error message to be consistent with the other malformed Mach-O file error messages which prints the load command index. I also removed both object_error::macho_load_segment_too_small and object_error::macho_load_segment_too_many_sections from Object/Error.h as they are not needed and can just use object_error::parse_failed and let the error message string distinguish the specific error. llvm-svn: 268652
* llvm-lto: add a -thinlto-module-id that enables to force the Module identifier.Mehdi Amini2016-05-051-0/+11
| | | | | | | | | | | | ThinLTO is using the Module Identifier to find the corresponding entry in the index. However when reproducing part of the flow from temporary files generated from the linker, you'd like to process a file and force llvm-lto to use another module identifier than the current filename. The alternative would be to tweak the index, which would be more involved. From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 268643
* [ThinLTO] Emit individual index files for distributed backendsTeresa Johnson2016-05-052-29/+107
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: When launching ThinLTO backends in a distributed build (currently supported in gold via the thinlto-index-only plugin option), emit an individual index file for each backend process as described here: http://lists.llvm.org/pipermail/llvm-dev/2016-April/098272.html The individual index file encodes the summary and module information required for implementing the importing/exporting decisions made for a given module in the thin link step. This is in place of the current mechanism that uses the combined index to make importing decisions in each back end independently. It is an enabler for doing global summary based optimizations in the thin link step (which will be recorded in the individual index files), and reduces the size of the index that must be sent to each backend process, and the amount of work to scan it in the backends. Rather than create entirely new ModuleSummaryIndex structures (and all the included unique_ptrs) for each backend index file, a map is created to record all of the GUID and summary pointers needed for a particular index file. The IndexBitcodeWriter walks this map instead of the full index (hiding the details of managing the appropriate summary iteration in a new iterator subclass). This is more efficient than walking the entire combined index and filtering out just the needed summaries during each backend bitcode index write. Depends on D19481. Reviewers: joker.eph Subscribers: llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D19556 llvm-svn: 268627
* [codeview] Move dumper into lib/DebugInfo/CodeViewReid Kleckner2016-05-052-811/+9
| | | | | | So that we can call it from llvm-pdbdump. llvm-svn: 268580
* Move pdb code into pdb namespace.Zachary Turner2016-05-0420-8/+37
| | | | llvm-svn: 268544
* [codeview] Add a type visitor to help abstract away type stream handlingReid Kleckner2016-05-041-485/+448
| | | | | | | | | | | | | | | | | | Summary: Port the dumper in llvm-readobj over to it. I'm planning to use this visitor to power type stream merging. While we're at it, try to switch from StringRef to ArrayRef<uint8_t> in some places. Reviewers: zturner, amccarth Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D19899 llvm-svn: 268535
* Reland "Use ScopedPrinter in llvm-pdbdump"Reid Kleckner2016-05-041-139/+169
| | | | | | | This reverts r268508 and reinstates r268506 with an additional cast from TypeLeafKind to unsigned to allow conversion to HexNumber. llvm-svn: 268517
* Revert "Use ScopedPrinter in llvm-pdbdump"Chad Rosier2016-05-041-169/+139
| | | | | | This reverts commit r268506 due to build breakage. llvm-svn: 268508
* Use ScopedPrinter in llvm-pdbdumpZachary Turner2016-05-041-139/+169
| | | | | | | | | | | | | | | | When printing raw PDB file fields, streams, and records, use the ScopedPrinter class so we have consistency with llvm-readobj's output format. For the most part this is pretty mechanical, but I had to fix up the test file to conform to the new YAMLesque output format. i added a few additional helper functions to the ScopedPrinter such as one to print a dotted version, etc. Differential Revision: http://reviews.llvm.org/D19897 Reviewed By: rnk llvm-svn: 268506
* [llvm-readobj] Print MIPS .MIPS.options section contentSimon Atanasyan2016-05-043-7/+68
| | | | | | | | | .MIPS.options section specifies miscellaneous options to be applied to an object file. LLVM as well as modern versions of GNU tools emit the only type of the options - ODK_REGINFO. The patch teaches llvm-readobj to print details of the ODK_REGINFO and skip contents of other options. llvm-svn: 268478
* [GlobalDCE, Misc] Don't remove functions referenced by ifuncsDavid Majnemer2016-05-042-2/+10
| | | | | | | | | | | | We forgot to consider the target of ifuncs when considering if a function was alive or dead. N.B. Also update a few auxiliary tools like bugpoint and verify-uselistorder. This fixes PR27593. llvm-svn: 268468
* llvm-pdbdump: Update libdeps.NAKAMURA Takumi2016-05-031-1/+2
| | | | llvm-svn: 268464
* Fix template type deduction error on some compilers.Zachary Turner2016-05-031-1/+1
| | | | llvm-svn: 268458
* Move CodeViewTypeStream to DebugInfo/CodeViewZachary Turner2016-05-032-153/+27
| | | | | | | | | | | | | Ability to parse codeview type streams is also needed by DebugInfoPDB for parsing PDBs, so moving this into a library gives us this option. Since DebugInfoPDB had already hand rolled some code to do this, that code is now convereted over to using this common abstraction. Differential Revision: http://reviews.llvm.org/D19887 Reviewed By: dblaikie, amccarth llvm-svn: 268454
* Remove unused header, NFCVedant Kumar2016-05-031-1/+0
| | | | llvm-svn: 268361
* [codeview] Maintain the type enum-to-classname mapping in the .def fileReid Kleckner2016-05-031-23/+5
| | | | | | This way it will be easy to stamp out something like a type visitor. llvm-svn: 268347
* Parse the TPI (type information) stream of PDB files.Zachary Turner2016-05-031-0/+34
| | | | | | | | | | | | | | | This parses the TPI stream (stream 2) from the PDB file. This stream contains some header information followed by a series of codeview records. There is some additional complexity here in that alongside this stream of codeview records is a serialized hash table in order to efficiently query the types. We parse the necessary bookkeeping information to allow us to reconstruct the hash table, but we do not actually construct it yet as there are still a few things that need to be understood first. Differential Revision: http://reviews.llvm.org/D19840 Reviewed By: ruiu, rnk llvm-svn: 268343
* Move llvm-readobj/StreamWriter to Support.Zachary Turner2016-05-0314-485/+55
| | | | | | | | | We wish to re-use this from llvm-pdbdump, and it provides a nice way to print structured data in scoped format that could prove useful for many other dumping tools as well. Moving to support and changing name to ScopedPrinter to better reflect its purpose. llvm-svn: 268342
* NFC: An iterator for stepping through CodeView type stream in llvm-readobjAdrian McCarthy2016-05-021-39/+125
| | | | | | | | | | | | This is a small refactoring step toward moving CodeView type stream logic from llvm-readobj to a library. It abstracts the logic of stepping through the stream into an iterator class and updates llvm-readobj to use that iterator. This has no functional change; llvm-readobj produces identical output. The next step is to abstract the parsing of the different leaf types and then move that and the iterator into a library. Since this is my first contrib outside LLDB, please let me know if I'm messing up on any of the LLVM style guidelines, idioms, or patterns. Differential Revision: http://reviews.llvm.org/D19746 llvm-svn: 268334
* Simplify. NFC.Rafael Espindola2016-05-021-4/+1
| | | | llvm-svn: 268326
* Fix llvm-size to exit with non zero when it can’t open a file.Kevin Enderby2016-05-021-1/+5
| | | | | | rdar://26027819 llvm-svn: 268313
* Don't try to create thin bsd archives.Rafael Espindola2016-05-021-1/+3
| | | | | | Not such variant has been specified yet. llvm-svn: 268305
* [dsymutil] Create the temporary files in the system temp directory.Frederic Riss2016-05-021-3/+6
| | | | | | | | | | llvm-dsymutil used to create the temporary files in the output directory. This works fine except when the output directory contains a '%' char, which is then replaced by llvm::sys::fs::createUniqueFile() generating an invalid path. Just use the default temp dir for those files. llvm-svn: 268304
* [codeview] Isolate type dumping from object file stateReid Kleckner2016-05-021-18/+38
| | | | | | | | | | | | | | This isolates the state we use for type dumping from the knowledge of object files. We can use CVTypeDumper to dump types from anywhere in memory now. NFC Reviewers: zturner Differential Revision: http://reviews.llvm.org/D19824 llvm-svn: 268300
* Thread Expected<...> up from libObject’s getType() for symbols to allow ↵Kevin Enderby2016-05-0210-57/+129
| | | | | | | | | | | | | | | | | | | | | | llvm-objdump to produce a good error message. Produce another specific error message for a malformed Mach-O file when a symbol’s section index is more than the number of sections. The existing test case in test/Object/macho-invalid.test for macho-invalid-section-index-getSectionRawName now reports the error with the message indicating that a symbol at a specific index has a bad section index and that bad section index value. Again converting interfaces to Expected<> from ErrorOr<> does involve touching a number of places. Where the existing code reported the error with a string message or an error code it was converted to do the same. Also there some were bugs in the existing code that did not deal with the old ErrorOr<> return values.  So now with Expected<> since they must be checked and the error handled, I added a TODO and a comment: "// TODO: Actually report errors helpfully" and a call something like consumeError(NameOrErr.takeError()) so the buggy code will not crash since needed to deal with the Error. llvm-svn: 268298
* [codeview] Don't dump type stream bytes unless asked toReid Kleckner2016-05-021-1/+2
| | | | llvm-svn: 268271
* Parse PDB Name Hash TableZachary Turner2016-05-021-25/+9
| | | | | | | | | | | | | PDB has a lot of similar data structures. We already have code for parsing a Name Map, but PDB seems to have a different but very similar structure that is a hash table. This is the beginning of code needed in order to parse the name hash table, but it is not yet complete. It parses the basic metadata of the hash table, the bucket array, and the names buffer, but doesn't use any of these fields yet as the data structure requires a non-trivial amount of work to understand. llvm-svn: 268268
* [llvm-readobj] Dump hash as part of -version-info.Davide Italiano2016-05-021-0/+1
| | | | llvm-svn: 268210
* [CMake] [Xcode] Improving Xcode toolchain generation to support distribution ↵Chris Bieneman2016-04-291-0/+20
| | | | | | | | targets This adds a new target `install-distribution-toolchain` which will install an Xcode toolchain featuring just the LLVM components specified in LLVM_DISTRIBUTION_COMPONENTS. llvm-svn: 268125
* Move coverage related code into a separate library.Easwaran Raman2016-04-296-7/+7
| | | | | | Differential Revision: http://reviews.llvm.org/D19333 llvm-svn: 268089
* Put PDB parsing code into a pdb namespace.Zachary Turner2016-04-291-22/+22
| | | | llvm-svn: 268072
* Refactor the PDB Stream reading interface.Zachary Turner2016-04-291-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | The motivation for this change is that PDB has the notion of streams and substreams. Substreams often consist of variable length structures that are convenient to be able to treat as guaranteed, contiguous byte arrays, whereas the streams they are contained in are not necessarily so, as a single stream could be spread across many discontiguous blocks. So, when processing data from a substream, we want to be able to assume that we have a contiguous byte array so that we can cast pointers to variable length arrays and such. This leads to the question of how to be able to read the same data structure from either a stream or a substream using the same interface, which is where this patch comes in. We separate out the stream's read state from the underlying representation, and introduce a `StreamReader` class. Then we change the name of `PDBStream` to `MappedBlockStream`, and introduce a second kind of stream called a `ByteStream` which is simply a sequence of contiguous bytes. Finally, we update all of the std::vectors in `PDBDbiStream` to use `ByteStream` instead as a proof of concept. llvm-svn: 268071
* Remove leftoverTobias Grosser2016-04-291-4/+0
| | | | llvm-svn: 268049
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