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* [CommandLine] Add long option flag for cl::ParseCommandLineOptions . Part 5 of 5Don Hinton2019-05-111-1/+2
| | | | | | | | | | | | | | | | | | | Summary: If passed, the long option flag makes the CommandLine parser mimic the behavior or GNU getopt_long. Short options are a single character prefixed by a single dash, and long options are multiple characters prefixed by a double dash. This patch was motivated by the discussion in the following thread: http://lists.llvm.org/pipermail/llvm-dev/2019-April/131786.html Reviewed By: MaskRay Tags: #llvm Differential Revision: https://reviews.llvm.org/D61294 llvm-svn: 360532
* [ThinLTO] Auto-hide prevailing linkonce_odr only when all copies eligibleTeresa Johnson2019-05-103-8/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: We hit undefined references building with ThinLTO when one source file contained explicit instantiations of a template method (weak_odr) but there were also implicit instantiations in another file (linkonce_odr), and the latter was the prevailing copy. In this case the symbol was marked hidden when the prevailing linkonce_odr copy was promoted to weak_odr. It led to unsats when the resulting shared library was linked with other code that contained a reference (expecting to be resolved due to the explicit instantiation). Add a CanAutoHide flag to the GV summary to allow the thin link to identify when all copies are eligible for auto-hiding (because they were all originally linkonce_odr global unnamed addr), and only do the auto-hide in that case. Most of the changes here are due to plumbing the new flag through the bitcode and llvm assembly, and resulting test changes. I augmented the existing auto-hide test to check for this situation. Reviewers: pcc Subscribers: mehdi_amini, inglorion, eraman, dexonsmith, arphaman, dang, llvm-commits, steven_wu, wmi Tags: #llvm Differential Revision: https://reviews.llvm.org/D59709 llvm-svn: 360466
* DebugInfo: Only move types out of type units if they're named or type unitedDavid Blaikie2019-05-101-0/+5
| | | | | | | | | | | | | | | | | | Follow up to r359122, after a bug was reported in it - the original change too aggressively tried to move related types out of type units, which included unnamed types (like array types) which can't reasonably be declared-but-not-defined. A step beyond that is that some types in type units can be anonymous, if they are types with a name for linkage purposes (eg: "typedef struct { } x;"). So ensure those don't get turned into plain declarations (without signatures) because, lacking names, they can't be resolved to the definition. [Also include a fix for llvm-dwarfdump/libDebugInfoDWARF to pretty print types in type units] llvm-svn: 360458
* Adjust MachineScheduler to use ProcResource countsMomchil Velikov2019-05-101-1/+9
| | | | | | | | | | | | | | This fix allows the scheduler to take into account the number of instances of each ProcResource specified. Previously a declaration in a scheduler of ProcResource<1> would be treated identically to a declaration of ProcResource<2>. Now the hazard recognizer would report a hazard only after all of the resource instances are busy. Patch by Jackson Woodruff and Momchil Velikov. Differential Revision: https://reviews.llvm.org/D51160 llvm-svn: 360441
* [Object] Move ELF specific ObjectFile::getBuildAttributes to ELFObjectFileBaseFangrui Song2019-05-102-27/+23
| | | | | | | Change the return type from std::error_code to Error and make the function protected. llvm-svn: 360416
* [Object] Change SymbolicFile::printSymbolName to use ErrorFangrui Song2019-05-104-10/+7
| | | | llvm-svn: 360414
* Remove an unnecessary header from SROA.h.Eric Christopher2019-05-101-1/+0
| | | | llvm-svn: 360410
* llvm-dwarfdump: Add dwo parsing to --statistics.Caroline Tice2019-05-091-0/+7
| | | | | | | | | | | Add check for, and parsing of, .dwo files to Statistics.cpp; create a new getNon SkeletonUnitDie function for DWARFUnit.h Reviewers: dblaikie Differential Revision: https://review.llvm.org/D61755 llvm-svn: 360380
* MinidumpYAML: add support for the ThreadList streamPavel Labath2019-05-091-22/+48
| | | | | | | | | | | | | | | | | | | Summary: The implementation is a pretty straightforward extension of the pattern used for (de)serializing the ModuleList stream. Since there are other streams which use the same format (MemoryList and MemoryList64, at least). I tried to generalize the code a bit so that adding future streams of this type can be done with less code. Reviewers: amccarth, jhenderson, clayborg Subscribers: markmentovai, lldb-commits, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61423 llvm-svn: 360350
* Fix local variable shadow warning in SmallVectorBase constructor. NFCI.Simon Pilgrim2019-05-091-2/+2
| | | | llvm-svn: 360337
* Fix uninitialized value warnings in StatepointBase constructors. NFCI.Simon Pilgrim2019-05-091-5/+2
| | | | llvm-svn: 360335
* [SPIR] Simplified target checking.Anastasia Stulova2019-05-091-0/+5
| | | | | | | | | | Added Triple::isSPIR() helper to simplify code. Patch by kpet (Kevin Petit)! Differential revision: https://reviews.llvm.org/D61639 llvm-svn: 360323
* [FileCheck] Fix code style of method commentsThomas Preud'homme2019-05-081-34/+75
| | | | | | | | | | | | | | | | | | | | | Summary: Fix various issues in code style of method comments: 1) Move all heading comments to all non-static methods near their declaration in the FileCheck.h header file. 2) Harmonize the action verb in doxygen comments for methods to always be in third person 3) Use \returns instead of free text "return" and "returns". 4) Document a couple more parameters while at it. Reviewers: jhenderson, probinson, arichardson Subscribers: javed.absar, kristof.beyls, hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61445 llvm-svn: 360288
* [SCEV] Suppress hoisting insertion point of binops when unsafeWarren Ristow2019-05-081-2/+4
| | | | | | | | | | | | | | InsertBinop tries to move insertion-points out of loops for expressions that are loop-invariant. This patch adds a new parameter, IsSafeToHost, to guard that hoisting. This allows callers to suppress that hoisting for unsafe situations, such as divisions that may have a zero denominator. This fixes PR38697. Differential Revision: https://reviews.llvm.org/D55232 llvm-svn: 360280
* [NewPassManager] Add tuning option: SLPVectorization [NFC].Alina Sbirlea2019-05-082-0/+6
| | | | | | | | | | | | | | Summary: Mirror tuning option from old pass manager in new pass manager. Reviewers: chandlerc Subscribers: mehdi_amini, jlebar, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61616 llvm-svn: 360276
* [MemorySSA] Teach LoopSimplify to preserve MemorySSA.Alina Sbirlea2019-05-085-8/+32
| | | | | | | | | | | | | | | Summary: Preserve MemorySSA in LoopSimplify, in the old pass manager, if the analysis is available. Do not preserve it in the new pass manager. Update tests. Subscribers: nemanjai, jlebar, javed.absar, Prazek, kbarton, zzheng, jsji, llvm-commits, george.burgess.iv, chandlerc Tags: #llvm Differential Revision: https://reviews.llvm.org/D60833 llvm-svn: 360270
* [ADT] SmallVector::set_size - fix Wdocumentation. NFCI.Simon Pilgrim2019-05-081-3/+3
| | | | | | Also fixes a Wshadow warning on MSVC. llvm-svn: 360255
* [Support] Add error handling to sys::Process::getPageSize().Lang Hames2019-05-083-6/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes the return type of sys::Process::getPageSize to Expected<unsigned> to account for the fact that the underlying syscalls used to obtain the page size may fail (see below). For clients who use the page size as an optimization only this patch adds a new method, getPageSizeEstimate, which calls through to getPageSize but discards any error returned and substitues a "reasonable" page size estimate estimate instead. All existing LLVM clients are updated to call getPageSizeEstimate rather than getPageSize. On Unix, sys::Process::getPageSize is implemented in terms of getpagesize or sysconf, depending on which macros are set. The sysconf call is documented to return -1 on failure. On Darwin getpagesize is implemented in terms of sysconf and may also fail (though the manpage documentation does not mention this). These failures have been observed in practice when highly restrictive sandbox permissions have been applied. Without this patch, the result is that getPageSize returns -1, which wreaks havoc on any subsequent code that was assuming a sane page size value. <rdar://problem/41654857> Reviewers: dblaikie, echristo Subscribers: kristina, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D59107 llvm-svn: 360221
* Reapply r360194 "[JITLink] Add support for MachO .alt_entry atoms." with fixes.Lang Hames2019-05-071-1/+1
| | | | | | | | | This patch modifies MachOAtomGraphBuilder to use setLayoutNext rather than addEdge, and fixes a bug in the section layout algorithm that could result in atoms appearing more than once in the section ordering (which resulted in those atoms being assigned invalid addresses during layout). llvm-svn: 360205
* [CommandLine] Allow Options to specify multiple OptionCategory's.Don Hinton2019-05-071-5/+8
| | | | | | | | | | | | | | | | | | Summary: It's not uncommon for separate components to share common Options, e.g., it's common for related Passes to share Options in addition to the Pass specific ones. With this change, components can use OptionCategory's to simply help output even if some of the options are shared. Reviewed By: MaskRay Tags: #llvm Differential Revision: https://reviews.llvm.org/D61574 llvm-svn: 360179
* [SCEV] Add explicit representations of umin/sminKeno Fischer2019-05-073-22/+112
| | | | | | | | | | | | | | | | | | Summary: Currently we express umin as `~umax(~x, ~y)`. However, this becomes a problem for operands in non-integral pointer spaces, because `~x` is not something we can compute for `x` non-integral. However, since comparisons are generally still allowed, we are actually able to express `umin(x, y)` directly as long as we don't try to express is as a umax. Support this by adding an explicit umin/smin representation to SCEV. We do this by factoring the existing getUMax/getSMax functions into a new function that does all four. The previous two functions were largely identical. Reviewed By: sanjoy Differential Revision: https://reviews.llvm.org/D50167 llvm-svn: 360159
* [llvm-objdump] - Print relocation record in a GNU format.George Rimar2019-05-071-2/+24
| | | | | | | | | | | | | | | This fixes the https://bugs.llvm.org/show_bug.cgi?id=41355. Previously with -r we printed relocation section name instead of the target section name. It was like this: "RELOCATION RECORDS FOR [.rel.text]" Now it is: "RELOCATION RECORDS FOR [.text]" Also when relocation target section has more than one relocation section, we did not combine the output. Now we do. Differential revision: https://reviews.llvm.org/D61312 llvm-svn: 360143
* [yaml2obj] - Allow setting st_value explicitly for Symbol.George Rimar2019-05-071-0/+1
| | | | | | | | | | In some cases it is useful to explicitly set symbol's st_name value. For example, I am using it in a patch for LLD to remove the broken binary from a test case and replace it with a YAML test. Differential revision: https://reviews.llvm.org/D61180 llvm-svn: 360137
* [FastISel][X86] If selectFNeg fails, fall back to SelectionDAG not treating ↵Craig Topper2019-05-071-1/+1
| | | | | | | | | | | | | | | | | | | | | it as an fsub. Summary: If fneg lowering for fsub -0.0, x fails we currently fall back to treating it as an fsub. This has different behavior for nans than the xor with sign bit trick we normally try to do. On X86, the xor trick for double fails fast-isel in 32-bit mode with sse2 due to 64 bit integer types not being available. With -O2 we would always use an xorpd for this case. If we use subsd, this creates an observable behavior difference between -O0 and -O2. So fall back to SelectionDAG if we can't fast-isel it, that way SelectionDAG will use the xorpd. I believe this patch is restoring the behavior prior to r345295 from last October. This was missed then because our fast isel case in 32-bit mode aborted fast-isel earlier for another reason. But I've added new tests to cover that. Reviewers: andrew.w.kaylor, cameron.mcinally, spatel, efriedma Reviewed By: cameron.mcinally Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61622 llvm-svn: 360111
* [DebugInfo] Delete TypedDINodeRefFangrui Song2019-05-072-111/+65
| | | | | | | | | | | | | TypedDINodeRef<T> is a redundant wrapper of Metadata * that is actually a T *. Accordingly, change DI{Node,Scope,Type}Ref uses to DI{Node,Scope,Type} * or their const variants. This allows us to delete many resolve() calls that clutter the code. Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D61369 llvm-svn: 360108
* Refactor UnaryOperator classCameron McInally2019-05-072-65/+63
| | | | | | | | | | The UnaryOperator class was originally placed in llvm/IR/Instructions.h, with the other UnaryInstructions. However, I'm now thinking that it makes more sense for it to live in llvm/IR/InstrTypes.h, with BinaryOperator. It is more similar to BinaryOperator than any of the other UnaryInstructions. NFCI Differential Revision: https://reviews.llvm.org/D61614 llvm-svn: 360103
* [ConstantRange] Add srem() supportNikita Popov2019-05-061-0/+5
| | | | | | | | | | | | | | | Add support for srem() to ConstantRange so we can use it in LVI. For srem the sign of the result matches the sign of the LHS. For the RHS only the absolute value is important. Apart from that the logic is like urem. Just like for urem this is only an approximate implementation. The tests check a few specific cases and run an exhaustive test for conservative correctness (but not exactness). Differential Revision: https://reviews.llvm.org/D61207 llvm-svn: 360055
* Add FNeg support to InstructionSimplifyCameron McInally2019-05-061-0/+13
| | | | | | Differential Revision: https://reviews.llvm.org/D61573 llvm-svn: 360053
* [Analysis] Remove duplicated std::move from LocRange constructorSimon Pilgrim2019-05-061-1/+1
| | | | | | scan-build was reporting that we were referencing a moved variable - in fact we were moving it twice..... llvm-svn: 360025
* [SimplifyLibCalls] Simplify bcmp too.Clement Courbet2019-05-061-0/+2
| | | | | | | | | | | | | | Summary: Fixes PR40699. Reviewers: gchatelet Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61585 llvm-svn: 360021
* Enable AVX512_BF16 instructions, which are supported for BFLOAT16 in Cooper LakeLuo, Yuanke2019-05-061-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | Summary: 1. Enable infrastructure of AVX512_BF16, which is supported for BFLOAT16 in Cooper Lake; 2. Enable VCVTNE2PS2BF16, VCVTNEPS2BF16 and DPBF16PS instructions, which are Vector Neural Network Instructions supporting BFLOAT16 inputs and conversion instructions from IEEE single precision. VCVTNE2PS2BF16: Convert Two Packed Single Data to One Packed BF16 Data. VCVTNEPS2BF16: Convert Packed Single Data to Packed BF16 Data. VDPBF16PS: Dot Product of BF16 Pairs Accumulated into Packed Single Precision. For more details about BF16 isa, please refer to the latest ISE document: https://software.intel.com/en-us/download/intel-architecture-instruction-set-extensions-programming-reference Author: LiuTianle Reviewers: craig.topper, smaslov, LuoYuanke, wxiao3, annita.zhang, RKSimon, spatel Reviewed By: craig.topper Subscribers: kristina, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60550 llvm-svn: 360017
* [llvm-c] Make LLVMGetStringErrorTypeId a proper prototypeAnders Waldenborg2019-05-061-1/+1
| | | | | | | | | | | | In C a function declaration with an empty argument list isn't a real prototype, it will allow calling the function with any number of arguments. It will also cause warnings when used in C code compiled with '-Wstrict-prototypes' Reviewed By: whitequark Differential Revision: https://reviews.llvm.org/D61568 llvm-svn: 360012
* [TargetLowering] getValueType - use dyn_cast directly to find VectorType. NFCI.Simon Pilgrim2019-05-051-10/+9
| | | | | | | | Matches what we do in other getValueType functions and fixes a null dereference warning in scan-build. Also cleans up the rest of the function - use auto and standardize the variable names. llvm-svn: 360000
* [NFC] BasicBlock: generalize replaceSuccessorsPhiUsesWith(), take Old bbRoman Lebedev2019-05-051-0/+4
| | | | | | | | | | Thus it does not assume that the old basic block is the basic block for which we are looking at successors. Not reviewed, but seems rather trivial, in line with the rest of previous few patches. llvm-svn: 359997
* [NFC] BasicBlock: refactor changePhiUses() out of replacePhiUsesWith(), use itRoman Lebedev2019-05-051-0/+4
| | | | | | | | | | | | | | | | | | | | | Summary: It is a common thing to loop over every `PHINode` in some `BasicBlock` and change old `BasicBlock` incoming block to a new `BasicBlock` incoming block. `replaceSuccessorsPhiUsesWith()` already had code to do that, it just wasn't a function. So outline it into a new function, and use it. Reviewers: chandlerc, craig.topper, spatel, danielcdh Reviewed By: craig.topper Subscribers: llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61013 llvm-svn: 359996
* [NFC] PHINode: introduce replaceIncomingBlockWith() function, use itRoman Lebedev2019-05-051-0/+8
| | | | | | | | | | | | | | | | | | | | Summary: There is `PHINode::getBasicBlockIndex()`, `PHINode::setIncomingBlock()` and `PHINode::getNumOperands()`, but no function to replace every specified `BasicBlock*` predecessor with some other specified `BasicBlock*`. Clearly, there are a lot of places that could use that functionality. Reviewers: chandlerc, craig.topper, spatel, danielcdh Reviewed By: craig.topper Subscribers: llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61011 llvm-svn: 359995
* [NFC] Instruction: introduce replaceSuccessorWith() function, use itRoman Lebedev2019-05-051-0/+4
| | | | | | | | | | | | | | | | | | | | Summary: There is `Instruction::getNumSuccessors()`, `Instruction::getSuccessor()` and `Instruction::setSuccessor()`, but no function to replace every specified `BasicBlock*` successor with some other specified `BasicBlock*`. I've found one place where it should clearly be used. Reviewers: chandlerc, craig.topper, spatel, danielcdh Reviewed By: craig.topper Subscribers: llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61010 llvm-svn: 359994
* [MCA] Notify event listeners when instructions transition to the Pending ↵Andrea Di Biagio2019-05-053-3/+13
| | | | | | state. NFCI llvm-svn: 359983
* Add FNeg IR constant folding supportCameron McInally2019-05-051-0/+6
| | | | llvm-svn: 359982
* [JITLink] Add two useful Section operations: find by name, get address range.Lang Hames2019-05-041-0/+71
| | | | | | | | These operations were already used in eh-frame registration, and are likely to be used in other runtime registrations, so this commit moves them into a header where they can be re-used. llvm-svn: 359950
* Update PatternMatcher for FNegCameron McInally2019-05-031-11/+19
| | | | | | | | Match both FNeg(X) and FSub(+-0.0, X) in FNeg_match Differential Revision: https://reviews.llvm.org/D61520 llvm-svn: 359936
* [COFF, ARM64] Fix ABI implementation of struct returnsMandeep Singh Grang2019-05-031-0/+3
| | | | | | | | | | | | | | | | | | | Summary: Refer the ABI doc at: https://docs.microsoft.com/en-us/cpp/build/arm64-windows-abi-conventions?view=vs-2019#return-values Related clang patch: D60349 Reviewers: rnk, efriedma, TomTan, ssijaric Reviewed By: rnk, efriedma Subscribers: mstorsjo, javed.absar, kristof.beyls, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60348 llvm-svn: 359934
* [CommandLine] Enable Grouping for short options by default. Part 4 of 5Don Hinton2019-05-031-1/+5
| | | | | | | | | | | | | | | | | | | Summary: This change enables `cl::Grouping` for short options -- options with names of a single character. This is consistent with GNU getopt behavior. Reviewers: rnk, MaskRay Reviewed By: MaskRay Subscribers: thopre, cfe-commits, MaskRay, rupprecht, hiraditya, llvm-commits Tags: #llvm, #clang Differential Revision: https://reviews.llvm.org/D61270 llvm-svn: 359917
* [llvm] Revert r231274: "Devirtualize ~parser<T> by making it protected in ↵Don Hinton2019-05-031-16/+11
| | | | | | | | | | | | | | | | | | | | | | | | base classes and making derived classes final" Summary: This patch was previously applied in r231221, and reverted in r231254 because it broke self-hosting. It was subsequently fixed and reapplied in r231274. Unfortunately, making the `parser<T>` classes final prevents inheritance which makes it impossible to implement custom parsers. Reverting r231221 restores the ability to customize parsers. Reviewers: dblaikie Reviewed By: dblaikie Subscribers: craig.topper, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60955 llvm-svn: 359902
* [Object][XCOFF] Add an XCOFF dumper for llvm-readobj.Sean Fertile2019-05-031-1/+12
| | | | | | | | | | | Patch adds support for dumping of file headers with llvm-readobj. XCOFF object files are added to test dumping a well formed file, and dumping both negative timestamps and negative symbol counts, both of which are allowed in the XCOFF definition. Differential Revision: https://reviews.llvm.org/D60878 llvm-svn: 359878
* [MemorySSA] Refactor removing multiple trivial phis [NFC].Alina Sbirlea2019-05-021-0/+1
| | | | | | | | | | | | | | Summary: Create a method to clean up multiple potentially trivial phis, since we will need this often. Reviewers: george.burgess.iv Subscribers: jlebar, Prazek, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61471 llvm-svn: 359842
* lld-link: Add /force:multipleres extension to make dupe resource diag non-fatalNico Weber2019-05-021-1/+1
| | | | | | | As a side benefit, lld-link now reports more than one duplicate resource entry before exiting with an error even if the new flag is not passed. llvm-svn: 359829
* Typo Functino->Function.Eric Christopher2019-05-021-1/+1
| | | | llvm-svn: 359821
* [SelectionDAG] remove constant folding limitations based on FP exceptionsSanjay Patel2019-05-021-15/+0
| | | | | | | | | | | | | | | | | We don't have FP exception limits in the IR constant folder for the binops (apart from strict ops), so it does not make sense to have them here in the DAG either. Nothing else in the backend tries to preserve exceptions (again outside of strict ops), so I don't see how this could have ever worked for real code that cares about FP exceptions. There are still cases (examples: unary opcodes in SDAG, FMA in IR) where we are trying (at least partially) to preserve exceptions without even asking if the target supports FP exceptions. Those should be corrected in subsequent patches. Real support for FP exceptions requires several changes to handle the constrained/strict FP ops. Differential Revision: https://reviews.llvm.org/D61331 llvm-svn: 359791
* [LTO] Migrate typedef to usingFangrui Song2019-05-023-12/+11
| | | | | | using has been used in several places in the file. Migrate the rest for consistency. llvm-svn: 359776
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