DeForest Richards [Fri, 20 Sep 2019 20:51:33 +0000 (20:51 +0000)]
[Docs] Move topics to new categories
This commit moves several topics to new categories.
llvm-svn: 372428
Saleem Abdulrasool [Fri, 20 Sep 2019 20:46:33 +0000 (20:46 +0000)]
Unwind: avoid warning about unused typedef
Move the definition of Elf_Addr typedef to the only place it is used, to avoid:
```
llvm-project/libunwind/src/AddressSpace.hpp:501:28: warning: unused typedef 'Elf_Addr' [-Wunused-local-typedef]
```
when compiling for Android with _LIBUNWIND_ARM_EHABI defined and
_LIBUNWIND_SUPPORT_DWARF_UNWIND not defined.
Patch by Joel Klinghed!
llvm-svn: 372427
Jinsong Ji [Fri, 20 Sep 2019 20:31:37 +0000 (20:31 +0000)]
[NFC][PowerPC] Consolidate testing of common linkage symbols
Add a new file to test the code gen for common linkage symbol.
Remove common linkage in some other testcases to avoid distraction.
llvm-svn: 372426
Mitch Phillips [Fri, 20 Sep 2019 20:25:16 +0000 (20:25 +0000)]
Revert "[MachinePipeliner] Improve the TargetInstrInfo API analyzeLoop/reduceLoopCount"
This commit broke the ASan buildbot. See comments in rL372376 for more
information.
This reverts commit
15e27b0b6d9d51362fad85dbe95ac5b3fadf0a06.
llvm-svn: 372425
Jan Kratochvil [Fri, 20 Sep 2019 20:19:18 +0000 (20:19 +0000)]
[lldb] Process formatters in reverse-chronological order
If one reverts D66398 then the TestDataFormatterStdList does fail - as the C++
formatters are initialized in the opposite order. But the current state of
trunk does not mind the order for C++ formatters.
It is using now a single std::vector as suggested by Pavel Labath.
Differential Revision: https://reviews.llvm.org/D66654
llvm-svn: 372424
Matt Morehouse [Fri, 20 Sep 2019 19:39:50 +0000 (19:39 +0000)]
[docs] Update structure-aware-fuzzing link.
The document has been moved to the google/fuzzing GitHub repo.
llvm-svn: 372423
Erich Keane [Fri, 20 Sep 2019 19:17:31 +0000 (19:17 +0000)]
Ensure AtomicExpr goes through SEMA checking after TreeTransform
RebuildAtomicExpr was skipping doing semantic analysis which broke in
the cases where the expressions were not dependent. This resulted in the
ImplicitCastExpr from an array to a pointer being lost, causing a crash
in IR CodeGen.
Differential Revision: https://reviews.llvm.org/D67854
llvm-svn: 372422
Michael Trent [Fri, 20 Sep 2019 19:13:24 +0000 (19:13 +0000)]
Can't pass .dSYM directory to llvm-objdump -dsym= (and error message is wrong)
Summary:
Allow users to pass the path to a .dSYM directory to llvm-objdump's -dsym
flag rather than requiring users to find the DWARF DSYM Mach-O within the
bundle structure by hand.
rdar://
46873333
Reviewers: pete, lhames, friss, aprantl
Reviewed By: pete, aprantl
Subscribers: MaskRay, aprantl, rupprecht, seiya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67780
llvm-svn: 372421
Craig Topper [Fri, 20 Sep 2019 18:52:49 +0000 (18:52 +0000)]
[Mips] Remove immarg test for intrinsics that no longer have an immarg after r372409.
llvm-svn: 372420
Kristof Umann [Fri, 20 Sep 2019 18:28:04 +0000 (18:28 +0000)]
Fix a documentation error
llvm-svn: 372419
Simon Pilgrim [Fri, 20 Sep 2019 18:21:31 +0000 (18:21 +0000)]
Fix -Wdocumentation warning. NFCI.
llvm-svn: 372418
Jinsong Ji [Fri, 20 Sep 2019 18:21:07 +0000 (18:21 +0000)]
[NFC][PowerPC] Refactor classifyGlobalReference
We always(and only) check the NLP flag after calling
classifyGlobalReference to see whether it is accessed
indirectly.
Refactor to code to use isGVIndirectSym instead.
llvm-svn: 372417
Simon Pilgrim [Fri, 20 Sep 2019 18:10:17 +0000 (18:10 +0000)]
Fix MSVC "not all control paths return a value" warning. NFCI.
llvm-svn: 372416
Richard Smith [Fri, 20 Sep 2019 18:09:05 +0000 (18:09 +0000)]
[www] Turn 'Clang 9' boxes green in C++ status pages now Clang 9 is
released.
llvm-svn: 372415
Kristof Umann [Fri, 20 Sep 2019 17:59:20 +0000 (17:59 +0000)]
Reland '[analyzer][MallocChecker][NFC] Document and reorganize some functions'
Differential Revision: https://reviews.llvm.org/D54823
llvm-svn: 372414
Roman Lebedev [Fri, 20 Sep 2019 17:43:46 +0000 (17:43 +0000)]
[NFC][InstCombine] Fixup newly-added tests
llvm-svn: 372413
Evgeniy Stepanov [Fri, 20 Sep 2019 17:36:27 +0000 (17:36 +0000)]
[MTE] Handle MTE instructions in AArch64LoadStoreOptimizer.
Summary: Generate pre- and post-indexed forms of ST*G and STGP when possible.
Reviewers: ostannard, vitalybuka
Subscribers: kristof.beyls, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67741
llvm-svn: 372412
Adrian Prantl [Fri, 20 Sep 2019 17:15:57 +0000 (17:15 +0000)]
Doxygenify comments.
llvm-svn: 372411
Yitzhak Mandelbaum [Fri, 20 Sep 2019 17:11:03 +0000 (17:11 +0000)]
[libTooling] Add `ifBound`, `elseBranch` RangeSelector combinators.
Summary:
Adds two new combinators and corresponding tests to the RangeSelector library.
* `ifBound` -- conditional evaluation of range-selectors, based on whether a
given node id is bound in the match.
* `elseBranch` -- selects the source range of the else and its statement.
Reviewers: gribozavr
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67621
llvm-svn: 372410
Craig Topper [Fri, 20 Sep 2019 16:49:51 +0000 (16:49 +0000)]
[SelectionDAG][Mips][Sparc] Don't allow SimplifyDemandedBits to constant fold TargetConstant nodes to a Constant.
Summary:
After the switch in SimplifyDemandedBits, it tries to create a
constant when possible. If the original node is a TargetConstant
the default in the switch will call computeKnownBits on the
TargetConstant which will succeed. This results in the
TargetConstant becoming a Constant. But TargetConstant exists to
avoid being changed.
I've fixed the two cases that relied on this in tree by explicitly
making the nodes constant instead of target constant. The Sparc
case is an old bug. The Mips case was recently introduced now that
ImmArg on intrinsics gets turned into a TargetConstant when the
SelectionDAG is created. I've removed the ImmArg since it lowers
to generic code.
Reviewers: arsenm, RKSimon, spatel
Subscribers: jyknight, sdardis, wdng, arichardson, hiraditya, fedor.sergeev, jrtc27, atanasyan, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67802
llvm-svn: 372409
Sebastian Pop [Fri, 20 Sep 2019 16:33:33 +0000 (16:33 +0000)]
[aarch64] add def-pats for dot product
This patch adds the patterns to select the dot product instructions.
Tested on aarch64-linux with make check-all.
Differential Revision: https://reviews.llvm.org/D67645
llvm-svn: 372408
Saleem Abdulrasool [Fri, 20 Sep 2019 15:53:42 +0000 (15:53 +0000)]
Unwind: prevent unw_get_proc_info from returning stale data
If unwind info is not available at the current IP, unw_get_proc_info should
return a zero-filled structure rather than the info of the previous IP.
This change also makes unw_get_proc_info return UNW_ENOINFO instead of
UNW_ESUCCESS.
Patch by Amanieu d'Antras!
llvm-svn: 372407
Stanislav Mekhanoshin [Fri, 20 Sep 2019 15:26:10 +0000 (15:26 +0000)]
Remove assert from MachineLoop::getLoopPredecessor()
According to the documentation method returns predecessor
if the given loop's header has exactly one unique predecessor
outside the loop. Otherwise return null.
In reality it asserts if there is no predecessor outside of
the loop.
The testcase has the loop where predecessors outside of the
loop were not identified as analyzeBranch() was unable to
process the mask branch and returned true. That is also not
correct to assert for the truly dead loops.
Differential Revision: https://reviews.llvm.org/D67634
llvm-svn: 372405
Krzysztof Parzyszek [Fri, 20 Sep 2019 15:19:20 +0000 (15:19 +0000)]
[MVT] Add v256i1 to MachineValueType
This type can show up when lowering some HVX vector code on Hexagon.
llvm-svn: 372403
Roman Lebedev [Fri, 20 Sep 2019 15:06:47 +0000 (15:06 +0000)]
[InstCombine] Tests for (a+b)<=a && (a+b)!=0 fold (PR43259)
https://rise4fun.com/Alive/knp
https://rise4fun.com/Alive/ALap
llvm-svn: 372402
Oliver Cruickshank [Fri, 20 Sep 2019 15:03:44 +0000 (15:03 +0000)]
[ARM] Fix CTTZ not generating correct instructions MVE
CTTZ intrinsic should have been set to Custom, not Expand
llvm-svn: 372401
Fangrui Song [Fri, 20 Sep 2019 15:03:21 +0000 (15:03 +0000)]
[ELF] Error if the linked-to section of a SHF_LINK_ORDER section is discarded
Summary:
If st_link(A)=B, and A has the SHF_LINK_ORDER flag, we may dereference
a null pointer if B is garbage collected (PR43147):
1. In Wrter.cpp:compareByFilePosition, `aOut->sectionIndex` or `bOut->sectionIndex`
2. In OutputSections::finalize, `d->getParent()->sectionIndex`
Simply error and bail out to avoid null pointer dereferences. ld.bfd has
a similar error:
sh_link of section `.bar' points to discarded section `.foo0' of `a.o'
ld.bfd is more permissive in that it just checks whether the linked-to
section of the first input section is discarded. This is likely because
it sets sh_link of the output section according to the first input
section.
Reviewed By: grimar
Differential Revision: https://reviews.llvm.org/D67761
llvm-svn: 372400
Francesco Petrogalli [Fri, 20 Sep 2019 15:02:32 +0000 (15:02 +0000)]
[docs] Remove training whitespaces. NFC
Subscribers: jfb, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67835
llvm-svn: 372399
David Stenberg [Fri, 20 Sep 2019 14:41:41 +0000 (14:41 +0000)]
Add a missing space in a MIR parser error message
llvm-svn: 372398
GN Sync Bot [Fri, 20 Sep 2019 14:39:52 +0000 (14:39 +0000)]
gn build: Merge r372396
llvm-svn: 372397
Cyndy Ishida [Fri, 20 Sep 2019 14:32:34 +0000 (14:32 +0000)]
[TextAPI] Arch&Platform to Target
Summary:
This is a patch for updating TextAPI/Macho to read in targets as opposed to arch/platform.
This is because in previous versions tbd files only supported a single platform but that is no longer the case,
so, now its tracked by unique triples.
This precedes a seperate patch that will add the TBD-v4 format
Reviewers: ributzka, steven_wu, plotfi, compnerd, smeenai
Reviewed By: ributzka
Subscribers: mgorny, hiraditya, dexonsmith, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67527
llvm-svn: 372396
Fangrui Song [Fri, 20 Sep 2019 14:31:42 +0000 (14:31 +0000)]
Use llvm::StringLiteral instead of StringRef in few places
llvm-svn: 372395
Yaxun Liu [Fri, 20 Sep 2019 14:28:09 +0000 (14:28 +0000)]
[CUDA][HIP] Fix hostness of defaulted constructor
Clang does not respect the explicit device host attributes of defaulted special members.
Also clang does not respect the hostness of special members determined by their
first declarations.
Clang also adds duplicate implicit device or host attributes in certain cases.
This patch fixes that.
Differential Revision: https://reviews.llvm.org/D67509
llvm-svn: 372394
Sanjay Patel [Fri, 20 Sep 2019 14:17:00 +0000 (14:17 +0000)]
[SLPVectorizer] add tests for bogus reductions; NFC
https://bugs.llvm.org/show_bug.cgi?id=42708
https://bugs.llvm.org/show_bug.cgi?id=43146
llvm-svn: 372393
David Zarzycki [Fri, 20 Sep 2019 13:52:47 +0000 (13:52 +0000)]
[Testing] Python 3 requires `print` to use parens
llvm-svn: 372392
Luis Marques [Fri, 20 Sep 2019 13:48:02 +0000 (13:48 +0000)]
[RISCV] Fix static analysis issues
Unlikely to be problematic but still worth fixing.
Differential Revision: https://reviews.llvm.org/D67640
llvm-svn: 372391
Guillaume Chatelet [Fri, 20 Sep 2019 13:40:31 +0000 (13:40 +0000)]
[Alignment][NFC] migrate DataLayout internal struct to llvm::Align
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
With this patch the PointerAlignElem struct goes from 20B to 16B.
Reviewers: courbet
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67400
llvm-svn: 372390
David Tellenbach [Fri, 20 Sep 2019 13:22:59 +0000 (13:22 +0000)]
[FastISel] Fix insertion of unconditional branches during FastISel
The insertion of an unconditional branch during FastISel can differ depending on
building with or without debug information. This happens because FastISel::fastEmitBranch
emits an unconditional branch depending on the size of the current basic block
without distinguishing between debug and non-debug instructions.
This patch fixes this issue by ignoring debug instructions when getting the size
of the basic block.
Reviewers: aprantl
Reviewed By: aprantl
Subscribers: ormris, aprantl, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67703
llvm-svn: 372389
Dmitri Gribenko [Fri, 20 Sep 2019 13:19:32 +0000 (13:19 +0000)]
[clang-tidy] Fix relative path in header-filter.
Summary:
Clang-tidy supports output diagnostics from header files if user
specifies --header-filter. But it can't handle relative path well.
For example, the folder structure of a project is:
```
// a.h is in /src/a/a.h
// b.h is in /src/b/b.h
...
// c.cpp is in /src/c.cpp
```
Now, we set --header-filter as --header-filter=/a/. That means we only
want to check header files under /src/a/ path, and ignore header files
uder /src/b/ path, but in current implementation, clang-tidy will check
/src/b/b.h also, because the name of b.h used in clang-tidy is
/src/a/../b/b.h.
This change tries to fix this issue.
Reviewers: alexfh, hokein, aaron.ballman, gribozavr
Reviewed By: gribozavr
Subscribers: MyDeveloperDay, xazax.hun, cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D67501
Patch by Yubo Xie.
llvm-svn: 372388
Jonas Paulsson [Fri, 20 Sep 2019 13:13:50 +0000 (13:13 +0000)]
[SystemZ] Add SystemZ as supporting target in help text for -mfentry.
=> "Insert calls to fentry at function entry (x86/SystemZ only)"
Review: Ulrich Weigand
llvm-svn: 372387
Benjamin Kramer [Fri, 20 Sep 2019 12:59:29 +0000 (12:59 +0000)]
[StaticAnalyzer] Use llvm::StringLiteral instead of StringRef in few places
StringRef's constexpr constructor seems to be extremely slow in MSVC
2017, so don't use it for generated tables. Should make PR43369 a bit
better, no functionality change.
llvm-svn: 372386
Raphael Isemann [Fri, 20 Sep 2019 12:52:55 +0000 (12:52 +0000)]
Move decl completion out of the ASTImporterDelegate and document it [NFC]
Summary:
The ASTImporterDelegate is currently responsible for both recording and also completing
types. This patch moves the actual completion and recording code outside the ASTImporterDelegate
to reduce the amount of responsibilities the ASTImporterDelegate has to fulfill.
As I anyway had to touch the code when moving I also documented and refactored most of it
(e.g. no more asserts that we call the deporting start/end function always as a pair).
Note that I had to make the ASTImporterDelegate and it's related functions public now so that
I can move out the functionality in another class (that doesn't need to be in the header).
Reviewers: shafik, aprantl, martong, a.sidorin
Reviewed By: martong
Subscribers: rnkovacs, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D61478
llvm-svn: 372385
Bjorn Pettersson [Fri, 20 Sep 2019 12:13:12 +0000 (12:13 +0000)]
[AMDGPU] Use std::make_tuple to make some toolchains happy again
My toolchain stopped working (LLVM 8.0 , libstdc++ 5.4.0) after
r372338.
The same problem was seen in clang-cuda-build buildbots:
clang-cuda-build/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp:763:12:
error: chosen constructor is explicit in copy-initialization
return {Reg, 0, nullptr};
^~~~~~~~~~~~~~~~~
/usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/c++/5.4.0/tuple:479:19:
note: explicit constructor declared here
constexpr tuple(_UElements&&... __elements)
^
This commit adds explicit calls to std::make_tuple to work around
the problem.
llvm-svn: 372384
Nico Weber [Fri, 20 Sep 2019 12:05:29 +0000 (12:05 +0000)]
Revert r372366 "Use getTargetConstant for BLENDI, and add a test to catch it."
This reverts commit
52621307bcab2013e8833f3317cebd63a6db3885.
Tests have been failing all night with
[0/2] ACTION //llvm/test:check-llvm(//llvm/utils/gn/build/toolchain:unix)
-- Testing: 33647 tests, 64 threads --
Testing: 0 .. 10..
UNRESOLVED: LLVM :: CodeGen/AMDGPU/GlobalISel/isel-blendi-gettargetconstant.ll (6943 of 33647)
******************** TEST 'LLVM :: CodeGen/AMDGPU/GlobalISel/isel-blendi-gettargetconstant.ll' FAILED ********************
Test has no run line!
********************
Since there were other concerns on https://reviews.llvm.org/D67785,
I'm just reverting for now.
llvm-svn: 372383
Raphael Isemann [Fri, 20 Sep 2019 10:30:38 +0000 (10:30 +0000)]
[lldb][NFC] Remove unused include in TestLineEntry.cpp
llvm-svn: 372381
Kerry McLaughlin [Fri, 20 Sep 2019 09:48:21 +0000 (09:48 +0000)]
[IntrinsicEmitter] Add overloaded types for SVE intrinsics (Subdivide2 & Subdivide4)
Summary:
Both match the type of another intrinsic parameter of a vector type, but where each element is subdivided to form a vector with more elements of a smaller type.
Subdivide2Argument allows intrinsics such as the following to be defined:
- declare <vscale x 4 x i32> @llvm.something.nxv4i32(<vscale x 8 x i16>)
Subdivide4Argument allows intrinsics such as:
- declare <vscale x 4 x i32> @llvm.something.nxv4i32(<vscale x 16 x i8>)
Tests are included in follow up patches which add intrinsics using these types.
Reviewers: sdesmalen, SjoerdMeijer, greened, rovka
Reviewed By: sdesmalen
Subscribers: rovka, tschuett, jdoerfert, cfe-commits, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67549
llvm-svn: 372380
David Tellenbach [Fri, 20 Sep 2019 09:43:31 +0000 (09:43 +0000)]
[NFC] Test commit, deleting some whitespace
llvm-svn: 372379
Djordje Todorovic [Fri, 20 Sep 2019 09:25:11 +0000 (09:25 +0000)]
[llvm-dwarfdump] Adjust Windows path to be acceptable by JSON
Backslash is a special character according to JSON specification,
so we should avoid that when printing a file path with the
--statistics option.
Differential Revision: https://reviews.llvm.org/D67699
llvm-svn: 372378
George Rimar [Fri, 20 Sep 2019 09:15:36 +0000 (09:15 +0000)]
[yaml2obj/obj2yaml] - Do not trigger llvm_unreachable when dumping/parsing relocations and e_machine is unsupported.
Currently when e_machine is set to something that is not supported by YAML lib,
then tools fail with llvm_unreachable.
In this patch I allow them to handle relocations in this case.
It can be used to dump and create objects for broken or unsupported targets.
Differential revision: https://reviews.llvm.org/D67657
llvm-svn: 372377
James Molloy [Fri, 20 Sep 2019 08:57:46 +0000 (08:57 +0000)]
[MachinePipeliner] Improve the TargetInstrInfo API analyzeLoop/reduceLoopCount
The way MachinePipeliner uses these target hooks is stateful - we reduce trip
count by one per call to reduceLoopCount. It's a little overfit for hardware
loops, where we don't have to worry about stitching a loop induction variable
across prologs and epilogs (the induction variable is implicit).
This patch introduces a new API:
/// Analyze loop L, which must be a single-basic-block loop, and if the
/// conditions can be understood enough produce a PipelinerLoopInfo object.
virtual std::unique_ptr<PipelinerLoopInfo>
analyzeLoopForPipelining(MachineBasicBlock *LoopBB) const;
The return value is expected to be an implementation of the abstract class:
/// Object returned by analyzeLoopForPipelining. Allows software pipelining
/// implementations to query attributes of the loop being pipelined.
class PipelinerLoopInfo {
public:
virtual ~PipelinerLoopInfo();
/// Return true if the given instruction should not be pipelined and should
/// be ignored. An example could be a loop comparison, or induction variable
/// update with no users being pipelined.
virtual bool shouldIgnoreForPipelining(const MachineInstr *MI) const = 0;
/// Create a condition to determine if the trip count of the loop is greater
/// than TC.
///
/// If the trip count is statically known to be greater than TC, return
/// true. If the trip count is statically known to be not greater than TC,
/// return false. Otherwise return nullopt and fill out Cond with the test
/// condition.
virtual Optional<bool>
createTripCountGreaterCondition(int TC, MachineBasicBlock &MBB,
SmallVectorImpl<MachineOperand> &Cond) = 0;
/// Modify the loop such that the trip count is
/// OriginalTC + TripCountAdjust.
virtual void adjustTripCount(int TripCountAdjust) = 0;
/// Called when the loop's preheader has been modified to NewPreheader.
virtual void setPreheader(MachineBasicBlock *NewPreheader) = 0;
/// Called when the loop is being removed.
virtual void disposed() = 0;
};
The Pipeliner (ModuloSchedule.cpp) can use this object to modify the loop while
allowing the target to hold its own state across all calls. This API, in
particular the disjunction of creating a trip count check condition and
adjusting the loop, improves the code quality in ModuloSchedule.cpp.
llvm-svn: 372376
Florian Hahn [Fri, 20 Sep 2019 08:33:11 +0000 (08:33 +0000)]
[CallSiteSplitting] Remove unused includes (NFC).
llvm-svn: 372375
Owen Reynolds [Fri, 20 Sep 2019 08:10:14 +0000 (08:10 +0000)]
Reapply [llvm-ar] Include a line number when failing to parse an MRI script
Reapply r372309
Errors that occur when reading an MRI script now include a corresponding
line number.
Differential Revision: https://reviews.llvm.org/D67449
llvm-svn: 372374
Craig Topper [Fri, 20 Sep 2019 07:00:22 +0000 (07:00 +0000)]
[X86] Convert tbm_bextri_u32/tbm_bextri_u64 intrinsics TargetConstant argument to a regular Constant during lowering.
We reuse an ISD opcode here that can be reached from BMI that
doesn't require it to be an immediate. Our isel patterns to match
the TBM immediate form require a Constant and not a TargetConstant.
We were accidentally getting the Constant due to a quirk of
combineBEXTR calling SimplifyDemandedBits. The call to
SimplifyDemandedBits ended up constant folding the TargetConstant
to a regular Constant. But we should probably instead be asserting
if SimplifyDemandedBits on a TargetConstant so we shouldn't rely
on this behavior.
llvm-svn: 372373
Yuanfang Chen [Fri, 20 Sep 2019 06:33:03 +0000 (06:33 +0000)]
[llvm-readobj] flush output before crash
Otherwise the output could be lost.
llvm-svn: 372372
Craig Topper [Fri, 20 Sep 2019 06:00:35 +0000 (06:00 +0000)]
[X86] Use timm in MMX pinsrw/pextrw isel patterns. Add missing test cases.
This fixes an isel failure after r372338.
llvm-svn: 372371
Fangrui Song [Fri, 20 Sep 2019 04:40:44 +0000 (04:40 +0000)]
[llvm-ar] Removes repetition in the error message
As per bug 40244, fixed an error where the error message was repeated.
Differential Revision: https://reviews.llvm.org/D67038
Patch by Yu Jian (wyjw)
llvm-svn: 372370
Fangrui Song [Fri, 20 Sep 2019 04:40:38 +0000 (04:40 +0000)]
[Object] Uncapitalize an error message
Test case will be added by my next commit.
llvm-svn: 372369
Richard Smith [Fri, 20 Sep 2019 03:29:19 +0000 (03:29 +0000)]
Finish building the full-expression for a static_assert expression
before evaluating it rather than afterwards.
This is groundwork for C++20's P0784R7, where non-trivial destructors
can be constexpr, so we need ExprWithCleanups markers in constant
expressions.
No significant functionality change intended (though this fixes a bug
only visible through libclang / -ast-dump / tooling: we now store the
converted condition on the StaticAssertDecl rather than the original).
llvm-svn: 372368
Nico Weber [Fri, 20 Sep 2019 03:13:16 +0000 (03:13 +0000)]
llvm-undname: Delete an empty, unused method.
llvm-svn: 372367
Sterling Augustine [Fri, 20 Sep 2019 02:29:16 +0000 (02:29 +0000)]
Use getTargetConstant for BLENDI, and add a test to catch it.
Summary: This fixes a crasher introduced by r372338.
Reviewers: echristo, arsenm
Subscribers: jvesely, wdng, nhaehnle, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67785
Tighten up the test case.
llvm-svn: 372366
Craig Topper [Fri, 20 Sep 2019 01:49:46 +0000 (01:49 +0000)]
[X86] Remove the special isBuildVectorOfConstantSDNodes handling from LowerBUILD_VECTORvXi1.
The later code that generates a constant when there are
some non-const elements works basically the same and doesn't
require there to be any non-const elements.
llvm-svn: 372365
Haibo Huang [Fri, 20 Sep 2019 00:45:26 +0000 (00:45 +0000)]
Revert "Fix swig python package path"
Summary: This reverts commit
5a115e81cdd40c758b10c382aeffc0c8de6930e2.
Reviewers: JDevlieghere, ZeGentzy
Subscribers: mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67781
llvm-svn: 372364
Alex Langford [Fri, 20 Sep 2019 00:16:32 +0000 (00:16 +0000)]
[NFCI] Always initialize const members of AttributeCommonInfo
Some compilers require that const fields of an object must be explicitly
initialized by the constructor. I ran into this issue building with
clang 3.8 on Ubuntu 16.04.
llvm-svn: 372363
Matt Arsenault [Fri, 20 Sep 2019 00:09:15 +0000 (00:09 +0000)]
MachineScheduler: Fix missing dependency with multiple subreg defs
If an instruction had multiple subregister defs, and one of them was
undef, this would improperly conclude all other lanes are
killed. There could still be other defs of those read-undef lanes in
other operands. This would improperly remove register uses from
CurrentVRegUses, so the visitation of later operands would not find
the necessary register dependency. This would also mean this would
fail or not depending on how different subregister def operands were
ordered.
On an undef subregister def, scan the instruction for other
subregister defs and avoid killing those.
This possibly should be deferring removing anything from
CurrentVRegUses until the entire instruction has been processed
instead.
llvm-svn: 372362
Nicholas Allegra [Thu, 19 Sep 2019 23:00:31 +0000 (23:00 +0000)]
[Consumed] Treat by-value class arguments as consuming by default, like rvalue refs.
Differential Revision: https://reviews.llvm.org/D67743
llvm-svn: 372361
Alex Lorenz [Thu, 19 Sep 2019 22:39:24 +0000 (22:39 +0000)]
Fix for stringized function-macro args continued across lines
In case of certain #define'd macros, there's a space just before line continuation
that the minimized-source lexer was missing to include, resulting in invalid stringize.
Patch by: kousikk (Kousik Kumar)
Differential Revision: https://reviews.llvm.org/D67635
llvm-svn: 372360
Richard Smith [Thu, 19 Sep 2019 22:00:16 +0000 (22:00 +0000)]
Model converted constant expressions as full-expressions.
This is groundwork for C++20's P0784R7, where non-trivial destructors
can be constexpr, so we need ExprWithCleanups markers in constant
expressions.
No functionality change intended.
llvm-svn: 372359
Thomas Lively [Thu, 19 Sep 2019 21:51:52 +0000 (21:51 +0000)]
[WebAssembly][NFC] Remove unnecessary braces
llvm-svn: 372358
Evandro Menezes [Thu, 19 Sep 2019 21:48:22 +0000 (21:48 +0000)]
[AArch64] Fix formatting (NFC)
llvm-svn: 372357
Michael Liao [Thu, 19 Sep 2019 21:26:18 +0000 (21:26 +0000)]
[CUDA][HIP] Re-apply part of r372318.
- r372318 causes violation of `use-of-uninitialized-value` detected by
MemorySanitizer. Once `Viable` field is set to false, `FailureKind`
needs setting as well as it will be checked during destruction if
`Viable` is not true.
- Revert the part trying to skip `std::vector` erasing.
llvm-svn: 372356
Mitch Phillips [Thu, 19 Sep 2019 21:11:28 +0000 (21:11 +0000)]
Revert "[CUDA][HIP] Fix typo in `BestViableFunction`"
Broke the msan buildbots (see comments on rL372318 for more details).
This reverts commit
eb231d15825ac345b546f4c99372d1cac8f14f02.
llvm-svn: 372353
Akira Hatanaka [Thu, 19 Sep 2019 20:58:51 +0000 (20:58 +0000)]
[ObjC][ARC] Skip debug instructions when computing the insert point of
objc_release calls
This fixes a bug where the presence of debug instructions would cause
ARC optimizer to change the order of retain and release calls.
rdar://problem/
55319419
llvm-svn: 372352
Mitch Phillips [Thu, 19 Sep 2019 20:44:12 +0000 (20:44 +0000)]
Don't false-positive match against binary path.
copy-rel-abs.s uses llvm-objdump to generate output that's then run
through FileCheck. llvm-objdump prints the file path at the top of the
file, which means that any build path that contains 'zed' will get
false-matched. Ensure that 'zed' is only matched after the 'SYMBOL
TABLE:' output, preventing this from failing if your build directory is
~/build/sanitized-xxx/, or similar.
llvm-svn: 372351
Stanislav Mekhanoshin [Thu, 19 Sep 2019 20:09:04 +0000 (20:09 +0000)]
[AMDGPU] fixed underflow in getOccupancyWithNumVGPRs
The function could return zero if an extreme number or
registers were used. Minimal possible occupancy is 1.
Differential Revision: https://reviews.llvm.org/D67771
llvm-svn: 372350
David Blaikie [Thu, 19 Sep 2019 20:04:04 +0000 (20:04 +0000)]
llvm-reduce: Follow-up to 372280, now with more-better msan fixing
llvm-svn: 372349
Evgeniy Stepanov [Thu, 19 Sep 2019 19:52:57 +0000 (19:52 +0000)]
[lsan] Fix deadlock in dl_iterate_phdr.
Summary:
Do not grab the allocator lock before calling dl_iterate_phdr. This may
cause a lock order inversion with (valid) user code that uses malloc
inside a dl_iterate_phdr callback.
Reviewers: vitalybuka, hctim
Subscribers: jfb, #sanitizers, llvm-commits
Tags: #sanitizers, #llvm
Differential Revision: https://reviews.llvm.org/D67738
llvm-svn: 372348
Jakub Kuderski [Thu, 19 Sep 2019 19:39:42 +0000 (19:39 +0000)]
Don't use invalidated iterators in FlattenCFGPass
Summary:
FlattenCFG may erase unnecessary blocks, which also invalidates iterators to those erased blocks.
Before this patch, `iterativelyFlattenCFG` could try to increment a BB iterator after that BB has been removed and crash.
This patch makes FlattenCFGPass use `WeakVH` to skip over erased blocks.
Reviewers: dblaikie, tstellar, davide, sanjoy, asbirlea, grosser
Reviewed By: asbirlea
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67672
llvm-svn: 372347
Shoaib Meenai [Thu, 19 Sep 2019 18:21:32 +0000 (18:21 +0000)]
[Analysis] Allow -scalar-evolution-max-iterations more than once
At present, `-scalar-evolution-max-iterations` is a `cl::Optional`
option, which means it demands to be passed exactly zero or one times.
Our build system makes it pretty tricky to guarantee this. We often
accidentally pass the flag more than once (but always with the same
value) which results in an error, after which compilation fails:
```
clang (LLVM option parsing): for the -scalar-evolution-max-iterations option: may only occur zero or one times!
```
It seems reasonable to allow -scalar-evolution-max-iterations to be
passed more than once. Quoting the [[ http://llvm.org/docs/CommandLine.html#controlling-the-number-of-occurrences-required-and-allowed | documentation ]]:
> The cl::ZeroOrMore modifier ... indicates that your program will allow the option to be specified zero or more times.
> ...
> If an option is specified multiple times for an option of the cl::opt class, only the last value will be retained.
Original patch by: Enrico Bern Hardy Tanuwidjaja <etanuwid@fb.com>
Differential Revision: https://reviews.llvm.org/D67512
llvm-svn: 372346
Jinsong Ji [Thu, 19 Sep 2019 18:18:18 +0000 (18:18 +0000)]
[NFC][PowerPC] Fast-isel VSX support test
We have fixed most of the VSX limitation in Fast-isel,
so we can remove the -mattr=-vsx for most testcases now.
llvm-svn: 372345
GN Sync Bot [Thu, 19 Sep 2019 17:53:03 +0000 (17:53 +0000)]
gn build: Merge r372343
llvm-svn: 372344
Francesco Petrogalli [Thu, 19 Sep 2019 17:47:32 +0000 (17:47 +0000)]
[SVFS] Vector Function ABI demangling.
This patch implements the demangling functionality as described in the
Vector Function ABI. This patch will be used to implement the
SearchVectorFunctionSystem (SVFS) as described in the RFC:
http://lists.llvm.org/pipermail/llvm-dev/2019-June/133484.html
A fuzzer is added to test the demangling utility.
Patch by Sumedh Arani <sumedh.arani@arm.com>
Differential revision: https://reviews.llvm.org/D66024
llvm-svn: 372343
Roman Lebedev [Thu, 19 Sep 2019 17:25:19 +0000 (17:25 +0000)]
[InstCombine] Simplify @llvm.usub.with.overflow+non-zero check (PR43251)
Summary:
This is again motivated by D67122 sanitizer check enhancement.
That patch seemingly worsens `-fsanitize=pointer-overflow`
overhead from 25% to 50%, which strongly implies missing folds.
In this particular case, given
```
char* test(char& base, unsigned long offset) {
return &base - offset;
}
```
it will end up producing something like
https://godbolt.org/z/luGEju
which after optimizations reduces down to roughly
```
declare void @use64(i64)
define i1 @test(i8* dereferenceable(1) %base, i64 %offset) {
%base_int = ptrtoint i8* %base to i64
%adjusted = sub i64 %base_int, %offset
call void @use64(i64 %adjusted)
%not_null = icmp ne i64 %adjusted, 0
%no_underflow = icmp ule i64 %adjusted, %base_int
%no_underflow_and_not_null = and i1 %not_null, %no_underflow
ret i1 %no_underflow_and_not_null
}
```
Without D67122 there was no `%not_null`,
and in this particular case we can "get rid of it", by merging two checks:
Here we are checking: `Base u>= Offset && (Base u- Offset) != 0`, but that is simply `Base u> Offset`
Alive proofs:
https://rise4fun.com/Alive/QOs
The `@llvm.usub.with.overflow` pattern itself is not handled here
because this is the main pattern, that we currently consider canonical.
https://bugs.llvm.org/show_bug.cgi?id=43251
Reviewers: spatel, nikic, xbolva00, majnemer
Reviewed By: xbolva00, majnemer
Subscribers: vsk, majnemer, xbolva00, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67356
llvm-svn: 372341
Alexander Timofeev [Thu, 19 Sep 2019 16:44:38 +0000 (16:44 +0000)]
[AMDGPU] Unnecessary -amdgpu-scalarize-global-loads=false flag removed from min/max lit tests.
Reviewers: arsenm
Differential Revision: https://reviews.llvm.org/D67712
llvm-svn: 372340
Sanjay Patel [Thu, 19 Sep 2019 16:31:17 +0000 (16:31 +0000)]
[Float2Int] avoid crashing on unreachable code (PR38502)
In the example from:
https://bugs.llvm.org/show_bug.cgi?id=38502
...we hit infinite looping/crashing because we have non-standard IR -
an instruction operand is used before defined.
This and other unusual constructs are allowed in unreachable blocks,
so avoid the problem by using DominatorTree to step around landmines.
Differential Revision: https://reviews.llvm.org/D67766
llvm-svn: 372339
Matt Arsenault [Thu, 19 Sep 2019 16:26:14 +0000 (16:26 +0000)]
Reapply r372285 "GlobalISel: Don't materialize immarg arguments to intrinsics"
This reverts r372314, reapplying r372285 and the commits which depend
on it (r372286-r372293, and r372296-r372297)
This was missing one switch to getTargetConstant in an untested case.
llvm-svn: 372338
Andrea Di Biagio [Thu, 19 Sep 2019 16:05:11 +0000 (16:05 +0000)]
[MCA] Improved cost computation for loop carried dependencies in the bottleneck analysis.
This patch introduces a cut-off threshold for dependency edge frequences with
the goal of simplifying the critical sequence computation. This patch also
removes the cost normalization for loop carried dependencies. We didn't really
need to artificially amplify the cost of loop-carried dependencies since it is
already computed as the integral over time of the delay (in cycle).
In the absence of backend stalls there is no need for computing a critical
sequence. With this patch we early exit from the critical sequence computation
if no bottleneck was reported during the simulation.
llvm-svn: 372337
Chris Bieneman [Thu, 19 Sep 2019 15:45:12 +0000 (15:45 +0000)]
Make appendCallNB lambda mutable
Lambdas are by deafult const so that they produce the same output every time they are run. This lambda needs to set the value on a captured promise which is a mutating operation, so it must be mutable.
llvm-svn: 372336
Matt Arsenault [Thu, 19 Sep 2019 15:44:00 +0000 (15:44 +0000)]
X86: Add missing test for vshli SimplifyDemandedBitsForTargetNode
This would have caught this regression which triggered the revert of
r372285: https://bugs.chromium.org/p/chromium/issues/detail?id=1005750
llvm-svn: 372335
Aaron Ballman [Thu, 19 Sep 2019 15:10:51 +0000 (15:10 +0000)]
Revert r372325 - Reverting r372323 because it broke color tests on Linux.
This corrects the testing issues.
llvm-svn: 372334
Simon Pilgrim [Thu, 19 Sep 2019 15:02:47 +0000 (15:02 +0000)]
[DAG][X86] Convert isNegatibleForFree/GetNegatedExpression to a target hook (PR42863)
This patch converts the DAGCombine isNegatibleForFree/GetNegatedExpression into overridable TLI hooks and includes a demonstration X86 implementation.
The intention is to let us extend existing FNEG combines to work more generally with negatible float ops, allowing it work with target specific combines and opcodes (e.g. X86's FMA variants).
Unlike the SimplifyDemandedBits, we can't just handle target nodes through a Target callback, we need to do this as an override to allow targets to handle generic opcodes as well. This does mean that the target implementations has to duplicate some checks (recursion depth etc.).
I've only begun to replace X86's FNEG handling here, handling FMADDSUB/FMSUBADD negation and some low impact codegen changes (some FMA negatation propagation). We can build on this in future patches.
Differential Revision: https://reviews.llvm.org/D67557
llvm-svn: 372333
Amaury Sechet [Thu, 19 Sep 2019 14:22:11 +0000 (14:22 +0000)]
[DAGCombiner] Add node to the worklist in topological order in scalarizeExtractedVectorLoad
Summary: As per title.
Reviewers: craig.topper, efriedma, RKSimon, lebedev.ri
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66661
llvm-svn: 372327
Francesco Petrogalli [Thu, 19 Sep 2019 14:19:32 +0000 (14:19 +0000)]
[docs] Break long (>80) line. NFC
llvm-svn: 372326
Aaron Ballman [Thu, 19 Sep 2019 13:59:53 +0000 (13:59 +0000)]
Reverting r372323 because it broke color tests on Linux.
http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/17919
llvm-svn: 372325
Sanjay Patel [Thu, 19 Sep 2019 13:58:15 +0000 (13:58 +0000)]
[Float2Int] auto-generate complete test checks; NFC
llvm-svn: 372324
Aaron Ballman [Thu, 19 Sep 2019 13:51:50 +0000 (13:51 +0000)]
Remove an unsafe member variable that wasn't needed; NFC.
People use the AST dumping interface while debugging, so it's not safe to assume that a declaration will be dumped before a constant expression is dumped. This means the Context member may not get set properly and problems would happen. Rather than rely on the interface that requires the ASTContext, call the generic dump() interface instead; this allows us to remove the Context member variable.
llvm-svn: 372323
Sven van Haastregt [Thu, 19 Sep 2019 13:41:51 +0000 (13:41 +0000)]
[OpenCL] Add version handling and add vector ld/st builtins
Allow setting a MinVersion, stating from which OpenCL version a
builtin function is available, and a MaxVersion, stating from which
OpenCL version a builtin function should not be available anymore.
Guard some definitions of the "work-item" builtin functions according
to the OpenCL versions from which they are available.
Add the "vector data load and store" builtin functions (e.g.
vload/vstore), whose signatures differ before and after OpenCL 2.0 in
the pointer argument address spaces.
Patch by Pierre Gondois and Sven van Haastregt.
Differential Revision: https://reviews.llvm.org/D63504
llvm-svn: 372321
James Molloy [Thu, 19 Sep 2019 13:39:54 +0000 (13:39 +0000)]
[TableGen] Support encoding per-HwMode
Much like ValueTypeByHwMode/RegInfoByHwMode, this patch allows targets
to modify an instruction's encoding based on HwMode. When the
EncodingInfos field is non-empty the Inst and Size fields of the Instruction
are ignored and taken from EncodingInfos instead.
As part of this promote getHwMode() from TargetSubtargetInfo to MCSubtargetInfo.
This is NFC for all existing targets - new code is generated only if targets
use EncodingByHwMode.
llvm-svn: 372320
Benjamin Kramer [Thu, 19 Sep 2019 13:35:27 +0000 (13:35 +0000)]
Clean out unused diagnostics. NFC.
llvm-svn: 372319
Michael Liao [Thu, 19 Sep 2019 13:14:03 +0000 (13:14 +0000)]
[CUDA][HIP] Fix typo in `BestViableFunction`
Summary:
- Should consider viable ones only when checking SameSide candidates.
- Replace erasing with clearing viable flag to reduce data
moving/copying.
- Add one and revise another one as the diagnostic message are more
relevant compared to previous one.
Reviewers: tra
Subscribers: cfe-commits, yaxunl
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67730
llvm-svn: 372318
Yitzhak Mandelbaum [Thu, 19 Sep 2019 13:12:05 +0000 (13:12 +0000)]
[clang-tidy] Fix bugprone-argument-comment-check to correctly ignore implicit constructors.
Summary:
After revision 370919, this check incorrectly flags certain cases of implicit
constructors. Specifically, if an argument is annotated with an
argument-comment and the argument expression triggers an implicit constructor,
then the argument comment is associated with argument of the implicit
constructor.
However, this only happens when the constructor has more than one argument.
This revision fixes the check for implicit constructors and adds a regression
test for this case.
Note: r370919 didn't cause this bug, it simply uncovered it by fixing another
bug that was masking the behavior.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67744
llvm-svn: 372317