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* CMake: Make most target symbols hidden by defaultTom Stellard2020-01-141-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: For builds with LLVM_BUILD_LLVM_DYLIB=ON and BUILD_SHARED_LIBS=OFF this change makes all symbols in the target specific libraries hidden by default. A new macro called LLVM_EXTERNAL_VISIBILITY has been added to mark symbols in these libraries public, which is mainly needed for the definitions of the LLVMInitialize* functions. This patch reduces the number of public symbols in libLLVM.so by about 25%. This should improve load times for the dynamic library and also make abi checker tools, like abidiff require less memory when analyzing libLLVM.so One side-effect of this change is that for builds with LLVM_BUILD_LLVM_DYLIB=ON and LLVM_LINK_LLVM_DYLIB=ON some unittests that access symbols that are no longer public will need to be statically linked. Before and after public symbol counts (using gcc 8.2.1, ld.bfd 2.31.1): nm before/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l 36221 nm after/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l 26278 Reviewers: chandlerc, beanz, mgorny, rnk, hans Reviewed By: rnk, hans Subscribers: merge_guards_bot, luismarques, smeenai, ldionne, lenary, s.egerton, pzheng, sameer.abuasal, MaskRay, wuzish, echristo, Jim, hiraditya, michaelplatings, chapuni, jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, javed.absar, sbc100, jgravelle-google, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, mgrang, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, kristina, jsji, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D54439
* [Disassembler] Delete the VStream parameter of MCDisassembler::getInstruction()Fangrui Song2020-01-111-4/+2
| | | | | | | | | | The argument is llvm::null() everywhere except llvm::errs() in llvm-objdump in -DLLVM_ENABLE_ASSERTIONS=On builds. It is used by no target but X86 in -DLLVM_ENABLE_ASSERTIONS=On builds. If we ever have the needs to add verbose log to disassemblers, we can record log with a member function, instead of passing it around as an argument.
* [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries"Tom Stellard2019-11-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Most libraries are defined in the lib/ directory but there are also a few libraries defined in tools/ e.g. libLLVM, libLTO. I'm defining "Component Libraries" as libraries defined in lib/ that may be included in libLLVM.so. Explicitly marking the libraries in lib/ as component libraries allows us to remove some fragile checks that attempt to differentiate between lib/ libraries and tools/ libraires: 1. In tools/llvm-shlib, because llvm_map_components_to_libnames(LIB_NAMES "all") returned a list of all libraries defined in the whole project, there was custom code needed to filter out libraries defined in tools/, none of which should be included in libLLVM.so. This code assumed that any library defined as static was from lib/ and everything else should be excluded. With this change, llvm_map_components_to_libnames(LIB_NAMES, "all") only returns libraries that have been added to the LLVM_COMPONENT_LIBS global cmake property, so this custom filtering logic can be removed. Doing this also fixes the build with BUILD_SHARED_LIBS=ON and LLVM_BUILD_LLVM_DYLIB=ON. 2. There was some code in llvm_add_library that assumed that libraries defined in lib/ would not have LLVM_LINK_COMPONENTS or ARG_LINK_COMPONENTS set. This is only true because libraries defined lib lib/ use LLVMBuild.txt and don't set these values. This code has been fixed now to check if the library has been explicitly marked as a component library, which should now make it easier to remove LLVMBuild at some point in the future. I have tested this patch on Windows, MacOS and Linux with release builds and the following combinations of CMake options: - "" (No options) - -DLLVM_BUILD_LLVM_DYLIB=ON - -DLLVM_LINK_LLVM_DYLIB=ON - -DBUILD_SHARED_LIBS=ON - -DBUILD_SHARED_LIBS=ON -DLLVM_BUILD_LLVM_DYLIB=ON - -DBUILD_SHARED_LIBS=ON -DLLVM_LINK_LLVM_DYLIB=ON Reviewers: beanz, smeenai, compnerd, phosek Reviewed By: beanz Subscribers: wuzish, jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, mgorny, mehdi_amini, sbc100, jgravelle-google, hiraditya, aheejin, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, steven_wu, rogfer01, MartinMosbeck, brucehoult, the_o, dexonsmith, PkmX, jocewei, jsji, dang, Jim, lenary, s.egerton, pzheng, sameer.abuasal, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70179
* [WebAssembly] Allow multivalue types in block signature operandsThomas Lively2019-10-152-3/+23
| | | | | | | | | | | | | | | | | | | | | | | | | Summary: Renames `ExprType` to the more apt `BlockType` and adds a variant for multivalue blocks. Currently non-void blocks are only generated at the end of functions where the block return type needs to agree with the function return type, and that remains true for multivalue blocks. That invariant means that the actual signature does not need to be stored in the block signature `MachineOperand` because it can be inferred by `WebAssemblyMCInstLower` from the return type of the parent function. `WebAssemblyMCInstLower` continues to lower block signature operands to immediates when possible but lowers multivalue signatures to function type symbols. The AsmParser and Disassembler are updated to handle multivalue block types as well. Reviewers: aheejin, dschuff, aardappel Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D68889 llvm-svn: 374933
* Revert CMake: Make most target symbols hidden by defaultTom Stellard2019-06-111-1/+1
| | | | | | | | | | | | | | | This reverts r362990 (git commit 374571301dc8e9bc9fdd1d70f86015de198673bd) This was causing linker warnings on Darwin: ld: warning: direct access in function 'llvm::initializeEvexToVexInstPassPass(llvm::PassRegistry&)' from file '../../lib/libLLVMX86CodeGen.a(X86EvexToVex.cpp.o)' to global weak symbol 'void std::__1::__call_once_proxy<std::__1::tuple<void* (&)(llvm::PassRegistry&), std::__1::reference_wrapper<llvm::PassRegistry>&&> >(void*)' from file '../../lib/libLLVMCore.a(Verifier.cpp.o)' means the weak symbol cannot be overridden at runtime. This was likely caused by different translation units being compiled with different visibility settings. llvm-svn: 363028
* CMake: Make most target symbols hidden by defaultTom Stellard2019-06-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: For builds with LLVM_BUILD_LLVM_DYLIB=ON and BUILD_SHARED_LIBS=OFF this change makes all symbols in the target specific libraries hidden by default. A new macro called LLVM_EXTERNAL_VISIBILITY has been added to mark symbols in these libraries public, which is mainly needed for the definitions of the LLVMInitialize* functions. This patch reduces the number of public symbols in libLLVM.so by about 25%. This should improve load times for the dynamic library and also make abi checker tools, like abidiff require less memory when analyzing libLLVM.so One side-effect of this change is that for builds with LLVM_BUILD_LLVM_DYLIB=ON and LLVM_LINK_LLVM_DYLIB=ON some unittests that access symbols that are no longer public will need to be statically linked. Before and after public symbol counts (using gcc 8.2.1, ld.bfd 2.31.1): nm before/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l 36221 nm after/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l 26278 Reviewers: chandlerc, beanz, mgorny, rnk, hans Reviewed By: rnk, hans Subscribers: Jim, hiraditya, michaelplatings, chapuni, jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, javed.absar, sbc100, jgravelle-google, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, mgrang, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, kristina, jsji, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D54439 llvm-svn: 362990
* [WebAssembly] Create a TargetInfo header. NFCRichard Trieu2019-05-151-0/+1
| | | | | | | | Move the declarations of getThe<Name>Target() functions into a new header in TargetInfo and make users of these functions include this new header. This fixes a layering problem. llvm-svn: 360735
* [WebAssembly] Add dependency on WebAssemblyDesc to fix BUILD_SHARED_LIBS=on ↵Fangrui Song2019-05-131-1/+1
| | | | | | | | | | | builds after rL360550 This fixes the link error ld.lld: error: undefined symbol: llvm::WebAssembly::anyTypeToString(unsigned int) >>> referenced by WebAssemblyDisassembler.cpp llvm-svn: 360558
* [WebAssembly] Move InstPrinter files to MCTargetDesc. NFCDavid L. Jones2019-05-132-2/+2
| | | | | | | | | For some targets, there is a circular dependency between InstPrinter and MCTargetDesc. Merging them together will fix this. For the other targets, the merging is to maintain consistency so all targets will have the same structure. llvm-svn: 360550
* [WebAssembly] Fixed disassembler not knowing about OPERAND_EVENTWouter van Oortmerssen2019-02-201-0/+1
| | | | | | | | | | | | Reviewers: aheejin Subscribers: dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D58414 llvm-svn: 354416
* [WebAssembly] Fix parseImmediate's memory alignment requirementHeejin Ahn2019-02-081-1/+1
| | | | | | | This fixes the current failure in the x86-64 ubsan bot caused by r353496. llvm-svn: 353499
* [WebAssembly] Fixed Disassembler ignoring endian swap on big endian.Wouter van Oortmerssen2019-02-081-3/+2
| | | | | | | | | | | | | | Summary: This fixes: https://bugs.llvm.org/show_bug.cgi?id=40620 Reviewers: aheejin Subscribers: dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D57933 llvm-svn: 353496
* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-192-8/+6
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
* [WebAssembly] Fixed objdump not parsing function headers.Wouter van Oortmerssen2019-01-172-3/+43
| | | | | | | | | | | | | | | | | | | | | | | Summary: objdump was interpreting the function header containing the locals declaration as instructions. To parse these without injecting target specific code in objdump, MCDisassembler::onSymbolStart was added to be implemented by the WebAssembly implemention. WasmObjectFile now returns a code offset for the "address" of a symbol, rather than the index. This is also more in-line with what other targets do. Also ensured that the AsmParser correctly puts each function in its own segment to enable this test case. Reviewers: sbc100, dschuff Subscribers: jgravelle-google, aheejin, sunfish, rupprecht, llvm-commits Differential Revision: https://reviews.llvm.org/D56684 llvm-svn: 351460
* [WebAssembly] Fixed disassembler not knowing about new brlist operandWouter van Oortmerssen2019-01-031-1/+15
| | | | | | | | | | | | | | Summary: The previously introduced new operand type for br_table didn't have a disassembler implementation, causing an assert. Reviewers: dschuff, aheejin Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D56227 llvm-svn: 350366
* [WebAssembly] made assembler parse block_typeWouter van Oortmerssen2019-01-021-2/+7
| | | | | | | | | | | | | | | Summary: This was previously ignored and an incorrect value generated. Also fixed Disassembler's handling of block_type. Reviewers: dschuff, aheejin Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D56092 llvm-svn: 350270
* [WebAssembly] Fix return type of nextByteThomas Lively2018-11-151-2/+2
| | | | | | | | | | | | | | Summary: The old return type did not allow for correct error reporting and was causing a compiler warning. Reviewers: aheejin Subscribers: dschuff, sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D54586 llvm-svn: 346979
* [WebAssembly] Hotfix of WebAssemblyInstructionTableSize after rL346465Fangrui Song2018-11-091-0/+2
| | | | llvm-svn: 346535
* [WebAssembly] Read prefixed opcodes as ULEB128sThomas Lively2018-11-091-11/+21
| | | | | | | | | | | | Summary: Depends on D54126. Reviewers: aheejin, dschuff, aardappel Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D54138 llvm-svn: 346465
* [Target] Untangle disassemblersBenjamin Kramer2018-09-101-1/+0
| | | | | | | Disassemblers cannot depend on main target headers. The same is true for MCTargetDesc, but there's a lot more cleanup needed for that. llvm-svn: 341822
* [WebAssembly] Made disassembler only use stack instructions.Wouter van Oortmerssen2018-08-301-10/+7
| | | | | | | | | | | | | | | | | | | | | | | | Summary: Now uses the StackBased bit from the tablegen defs to identify stack instructions (and ignore register based or non-wasm instructions). Also changed how we store operands, since we now have up to 16 of them per instruction. To not cause static data bloat, these are compressed into a tiny table. + a few other cleanups. Tested: - MCTest - llvm-lit -v `find test -name WebAssembly` Reviewers: dschuff, jgravelle-google, sunfish, tlively Subscribers: sbc100, aheejin, llvm-commits Differential Revision: https://reviews.llvm.org/D51320 llvm-svn: 341081
* [WebAssembly] v128.constThomas Lively2018-08-211-4/+29
| | | | | | | | | | | | | | | | Summary: This CL implements v128.const for each vector type. New operand types are added to ensure the vector contents can be serialized without LEB encoding. Tests are added for instruction selection, encoding, assembly and disassembly. Reviewers: aheejin, dschuff, aardappel Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D50873 llvm-svn: 340336
* [WebAssembly] Initial Disassembler.Sam Clegg2018-05-101-5/+121
| | | | | | | | | | | | | | | | | | | | | This implements a new table-gen emitter to create tables for a wasm disassembler, and a dissassembler to use them. Comes with 2 tests, that tests a few instructions manually. Is also able to disassemble large .wasm files with objdump reasonably. Not working so well, to be addressed in followups: - objdump appears to be passing an incorrect starting point. - since the disassembler works an instruction at a time, and it is disassembling stack instruction, it has no idea of pseudo register assignments. These registers are required for the instruction printing code that follows. For now, all such registers appear in the output as $0. Patch by Wouter van Oortmerssen Differential Revision: https://reviews.llvm.org/D45848 llvm-svn: 332052
* Remove \brief commands from doxygen comments.Adrian Prantl2018-05-011-1/+1
| | | | | | | | | | | | | | | | We've been running doxygen with the autobrief option for a couple of years now. This makes the \brief markers into our comments redundant. Since they are a visual distraction and we don't want to encourage more \brief markers in new code either, this patch removes them all. Patch produced by for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done Differential Revision: https://reviews.llvm.org/D46290 llvm-svn: 331272
* Sort the remaining #include lines in include/... and lib/....Chandler Carruth2017-06-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | I did this a long time ago with a janky python script, but now clang-format has built-in support for this. I fed clang-format every line with a #include and let it re-sort things according to the precise LLVM rules for include ordering baked into clang-format these days. I've reverted a number of files where the results of sorting includes isn't healthy. Either places where we have legacy code relying on particular include ordering (where possible, I'll fix these separately) or where we have particular formatting around #include lines that I didn't want to disturb in this patch. This patch is *entirely* mechanical. If you get merge conflicts or anything, just ignore the changes in this patch and run clang-format over your #include lines in the files. Sorry for any noise here, but it is important to keep these things stable. I was seeing an increasing number of patches with irrelevant re-ordering of #include lines because clang-format was used. This patch at least isolates that churn, makes it easy to skip when resolving conflicts, and gets us to a clean baseline (again). llvm-svn: 304787
* [WebAssembly] Remove old experimental disassemler code.Dan Gohman2017-02-111-84/+2
| | | | | | | Remove support for disassembling an old experimental wasm binary format, which is no longer in use anywhere. llvm-svn: 294809
* [WebAssembly] Add instruction definitions for drop and get/set_global.Dan Gohman2017-02-021-0/+1
| | | | llvm-svn: 293922
* [WebAssembly] Add an option to make get_local/set_local explicit.Dan Gohman2016-10-241-0/+1
| | | | | | | | | | This patch adds a pass, controlled by an option and off by default for now, for making implicit get_local/set_local explicit. This simplifies emitting wasm with MC. Differential Revision: https://reviews.llvm.org/D25836 llvm-svn: 285009
* Move the global variables representing each Target behind accessor functionMehdi Amini2016-10-091-2/+2
| | | | | | | | This avoids "static initialization order fiasco" Differential Revision: https://reviews.llvm.org/D25412 llvm-svn: 283702
* [WebAssembly] Rename OPERAND_FP32IMM to OPERAND_F32IMM.Dan Gohman2016-10-031-2/+2
| | | | | | | WebAssembly documentation consistently says "f32" rather than "fp32" to describe 32-bit floating-point. llvm-svn: 283146
* [WebAssembly] Implement support for custom NaN bit patterns.Dan Gohman2016-02-161-1/+2
| | | | llvm-svn: 260968
* Remove autoconf supportChris Bieneman2016-01-261-16/+0
| | | | | | | | | | | | | | | | Summary: This patch is provided in preparation for removing autoconf on 1/26. The proposal to remove autoconf on 1/26 was discussed on the llvm-dev thread here: http://lists.llvm.org/pipermail/llvm-dev/2016-January/093875.html "I felt a great disturbance in the [build system], as if millions of [makefiles] suddenly cried out in terror and were suddenly silenced. I fear something [amazing] has happened." - Obi Wan Kenobi Reviewers: chandlerc, grosbach, bob.wilson, tstellarAMD, echristo, whitequark Subscribers: chfast, simoncook, emaste, jholewinski, tberghammer, jfb, danalbert, srhines, arsenm, dschuff, jyknight, dsanders, joker.eph, llvm-commits Differential Revision: http://reviews.llvm.org/D16471 llvm-svn: 258861
* Update wasm target for r258819.Benjamin Kramer2016-01-261-1/+1
| | | | llvm-svn: 258827
* [WebAssembly] Implement unaligned loads and stores.Dan Gohman2016-01-261-0/+1
| | | | | | Differential Revision: http://reviews.llvm.org/D16534 llvm-svn: 258779
* [WebAssembly] Implement a prototype instruction encoder and disassembler.Dan Gohman2016-01-124-0/+190
This is using an extremely simple temporary made-up binary format, not the official binary format (which isn't defined yet). llvm-svn: 257440
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