Lawrence D'Anna [Thu, 3 Oct 2019 04:31:46 +0000 (04:31 +0000)]
factor out an abstract base class for File
Summary:
This patch factors out File as an abstract base
class and moves most of its actual functionality into
a subclass called NativeFile. In the next patch,
I'm going to be adding subclasses of File that
don't necessarily have any connection to actual OS files,
so they will not inherit from NativeFile.
This patch was split out as a prerequisite for
https://reviews.llvm.org/D68188
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68317
llvm-svn: 373564
Lawrence D'Anna [Thu, 3 Oct 2019 04:04:48 +0000 (04:04 +0000)]
SBDebugger::SetInputFile, SetOutputFile, etc.
Summary:
Add new methods to SBDebugger to set IO files as SBFiles instead of
as FILE* streams.
In future commits, the FILE* methods will be deprecated and these
will become the primary way to set the debugger I/O streams.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68181
llvm-svn: 373563
Lawrence D'Anna [Thu, 3 Oct 2019 04:01:07 +0000 (04:01 +0000)]
new api class: SBFile
Summary:
SBFile is a scripting API wrapper for lldb_private::File
This is the first step in a project to enable arbitrary python
io.IOBase file objects -- including those that override the read()
and write() methods -- to be used as the main debugger IOStreams.
Currently this is impossible because python file objects must first
be converted into FILE* streams by SWIG in order to be passed into
the debugger.
full prototype: https://github.com/smoofra/llvm-project/tree/files
Reviewers: JDevlieghere, jasonmolenda, zturner, jingham, labath
Reviewed By: labath
Subscribers: labath, mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67793
llvm-svn: 373562
Yaxun Liu [Thu, 3 Oct 2019 03:27:43 +0000 (03:27 +0000)]
[HIP] Support -emit-llvm for device compilation
Sometimes it is useful to compile HIP device code to LLVM BC. It is not convenient to use clang -cc1 since
there are lots of options needed.
This patch allows clang driver to compile HIP device code to LLVM BC with -emit-llvm -c.
Differential Revision: https://reviews.llvm.org/D68284
llvm-svn: 373561
Craig Topper [Thu, 3 Oct 2019 03:16:27 +0000 (03:16 +0000)]
[X86] Add broadcast load folding patterns to NoVLX VPMULLQ/VPMAXSQ/VPMAXUQ/VPMINSQ/VPMINUQ patterns.
More fixes for PR36191.
llvm-svn: 373560
Craig Topper [Thu, 3 Oct 2019 03:16:21 +0000 (03:16 +0000)]
[X86] Remove a couple redundant isel patterns that look to have been copy/pasted from right above them. NFC
llvm-svn: 373559
GN Sync Bot [Thu, 3 Oct 2019 02:43:27 +0000 (02:43 +0000)]
gn build: Merge r373556
llvm-svn: 373558
Nico Weber [Thu, 3 Oct 2019 02:38:43 +0000 (02:38 +0000)]
Revert 373538 and follow-ups 373549 and 373552.
They break tests on (at least) macOS.
llvm-svn: 373556
Daniel Sanders [Thu, 3 Oct 2019 01:49:04 +0000 (01:49 +0000)]
[gicombiner] Make rL373551 compatible with older cmakes
Newer cmakes appear to be more flexible w.r.t object libraries. Convert to
a static library so that it works with older cmakes too
llvm-svn: 373555
Nico Weber [Thu, 3 Oct 2019 01:32:51 +0000 (01:32 +0000)]
gn build: (manually) merge r373551
llvm-svn: 373554
Richard Smith [Thu, 3 Oct 2019 01:20:27 +0000 (01:20 +0000)]
PR43519: don't inject a diagnostic when constant-evaulation of a
pointer-to-member call can't determine a callee.
We will have produced a diagnostic already if the callee is known to be
unevaluatable, and diagnosing here rejects valid code during potential
constant expression checking.
llvm-svn: 373553
Puyan Lotfi [Thu, 3 Oct 2019 01:19:51 +0000 (01:19 +0000)]
Fixing broken builds due to r373538, issues with filepath and hexagon toolchain.
It appears there are some issues with the hexagon toolchain, and also the file
path for the library file. If this doesn't fix the remaining breakages I will
attempt a revert.
llvm-svn: 373552
Daniel Sanders [Thu, 3 Oct 2019 01:04:42 +0000 (01:04 +0000)]
[gicombiner] Add a CodeExpander to handle C++ fragments with variable expansion
Summary:
This will handle expansion of C++ fragments in the declarative combiner
including custom predicates, and escapes into C++ to aid the migration
effort.
Reviewers: bogner, volkan
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68288
llvm-svn: 373551
GN Sync Bot [Thu, 3 Oct 2019 00:47:13 +0000 (00:47 +0000)]
gn build: Merge r373538
llvm-svn: 373550
Puyan Lotfi [Thu, 3 Oct 2019 00:41:13 +0000 (00:41 +0000)]
Fixing broken builds due to r373538 due to test that should have been deleted.
test/InterfaceStubs/object.cpp should have been deleted.
llvm-svn: 373549
Richard Smith [Thu, 3 Oct 2019 00:39:37 +0000 (00:39 +0000)]
Mark P0784R7 as complete and start defining its feature-test macro.
Note that this only covers the language side of this feature. (The
library side has its own feature test macro.)
llvm-svn: 373548
Richard Smith [Thu, 3 Oct 2019 00:39:35 +0000 (00:39 +0000)]
For P0784R7: support placement new-expressions in constant evaluation.
For now, we restrict this support to use from within the standard
library implementation, since we're required to make parts of the
standard library that use placement new work, but not permitted to
make uses of placement new from user code work.
llvm-svn: 373547
Richard Smith [Thu, 3 Oct 2019 00:39:33 +0000 (00:39 +0000)]
For P0784R7: allow direct calls to operator new / operator delete from
std::allocator::{allocate,deallocate} in constant evaluation.
llvm-svn: 373546
Daniel Sanders [Wed, 2 Oct 2019 23:38:06 +0000 (23:38 +0000)]
[gicombiner] Fix windows issue where single quotes in the command are passed through to tablegen
llvm-svn: 373545
Stanislav Mekhanoshin [Wed, 2 Oct 2019 23:23:46 +0000 (23:23 +0000)]
[AMDGPU] Fix illegal agpr use by VALU
When SIFixSGPRCopies attempts to fix an illegal copy from vector to
scalar register it calls moveToVALU(). A copy from an agpr to sgpr
becomes a copy from agpr to agpr, which may result in the illegal
register class at a use of this copy.
Solution is to copy it always into a vgpr. This may result in a
subsequent copy into an agpr if that is what really needed, however
should not happen too often and likely will be folded later.
The opposite situation may not happen because an sgpr is always
illegal where agpr is legal, so such user instructions may not
exist.
Differential Revision: https://reviews.llvm.org/D68358
llvm-svn: 373544
Daniel Sanders [Wed, 2 Oct 2019 23:03:21 +0000 (23:03 +0000)]
[gicombiner] Fix a nullptr dereference when -combiners is given a name that isn't defined
This is unlikely to be the root cause for the windows bot failures but
it would explain the stack trace seen.
llvm-svn: 373543
Roman Lebedev [Wed, 2 Oct 2019 23:02:12 +0000 (23:02 +0000)]
[InstCombine] Bypass high bit extract before variable sign-extension (PR43523)
https://rise4fun.com/Alive/8BY - valid for lshr+trunc+variable sext
https://rise4fun.com/Alive/7jk - the variable sext can be redundant
https://rise4fun.com/Alive/Qslu - 'exact'-ness of first shift can be preserver
https://rise4fun.com/Alive/IF63 - without trunc we could view this as
more general "drop redundant mask before right-shift",
but let's handle it here for now
https://rise4fun.com/Alive/iip - likewise, without trunc, variable sext can be redundant.
There's more patterns for sure - e.g. we can have 'lshr' as the final shift,
but that might be best handled by some more generic transform, e.g.
"drop redundant masking before right-shift" (PR42456)
I'm singling-out this sext patch because you can only extract
high bits with `*shr` (unlike abstract bit masking),
and i *know* this fold is wanted by existing code.
I don't believe there is much to review here,
so i'm gonna opt into post-review mode here.
https://bugs.llvm.org/show_bug.cgi?id=43523
llvm-svn: 373542
Roman Lebedev [Wed, 2 Oct 2019 23:01:58 +0000 (23:01 +0000)]
[NFC][InstCombine] Add tests for 'variable sext of variable high bit extract' pattern (PR43523)
https://bugs.llvm.org/show_bug.cgi?id=43523
llvm-svn: 373541
David Blaikie [Wed, 2 Oct 2019 22:58:02 +0000 (22:58 +0000)]
DebugInfo: Rename DebugLocStream::Entry::Begin/EndSym to just Begin/End
Brings this struct in line with the RangeSpan class so they might
eventually be used by common template code for generating range/loc
lists with less duplicate code.
llvm-svn: 373540
Matt Morehouse [Wed, 2 Oct 2019 22:57:37 +0000 (22:57 +0000)]
Move SanitizerInitializeUnwinder outside anonymous namespace.
Fixes the Android build breakage introduced in r373528.
llvm-svn: 373539
Puyan Lotfi [Wed, 2 Oct 2019 22:50:07 +0000 (22:50 +0000)]
[clang][ifs] Clang Interface Stubs ToolChain plumbing.
This patch enables end to end support for generating ELF interface stubs
directly from clang. Now the following:
clang -emit-interface-stubs -o libfoo.so a.cpp b.cpp c.cpp
will product an ELF binary with visible symbols populated. Visibility attributes
and -fvisibility can be used to control what gets populated.
* Adding ToolChain support for clang Driver IFS Merge Phase
* Implementing a default InterfaceStubs Merge clang Tool, used by ToolChain
* Adds support for the clang Driver to involve llvm-ifs on ifs files.
* Adds -emit-merged-ifs flag, to tell llvm-ifs to emit a merged ifs text file
instead of the final object format (normally ELF)
Differential Revision: https://reviews.llvm.org/D63978
llvm-svn: 373538
David Bolvansky [Wed, 2 Oct 2019 22:49:20 +0000 (22:49 +0000)]
[InstCombine] Transform bcopy to memmove
bcopy is still widely used mainly for network apps. Sadly, LLVM has no optimizations for bcopy, but there are some for memmove.
Since bcopy == memmove, it is profitable to transform bcopy to memmove and use current optimizations for memmove for free here.
llvm-svn: 373537
Craig Topper [Wed, 2 Oct 2019 22:35:03 +0000 (22:35 +0000)]
[X86] Add test cases for suboptimal vselect+setcc splitting.
If the vselect result type needs to be split, it will try to
also try to split the condition if it happens to be a setcc.
With avx512 where k-registers are legal, its probably better
to just use a kshift to split the mask register.
llvm-svn: 373536
Craig Topper [Wed, 2 Oct 2019 22:34:49 +0000 (22:34 +0000)]
[LegalizeTypes] Check for already split condition before calilng SplitVecRes_SETCC in SplitRes_SELECT.
No point in manually splitting the SETCC if it was already done.
llvm-svn: 373535
Nico Weber [Wed, 2 Oct 2019 22:33:07 +0000 (22:33 +0000)]
gn build: (manually) merge r373527
llvm-svn: 373534
David Blaikie [Wed, 2 Oct 2019 22:27:24 +0000 (22:27 +0000)]
DebugInfo: Simplify RangeSpan to be a plain struct
This is an effort to make RangeSpan and DebugLocStream::Entry more
similar to share code for their emission (to reuse the more complicated
code for using (& choosing when to use) base address selection entries,
etc).
It didn't seem like this struct was worth the complexity of
encapsulation - when the members could be initialized by the ctor to any
value (no validation) and the type is assignable (so there's no
mutability or other constraint being implemented by its interface).
llvm-svn: 373533
Matt Morehouse [Wed, 2 Oct 2019 22:00:29 +0000 (22:00 +0000)]
[sanitizer_common] Declare __sanitizer_on_print in Windows interception.
Speculative fix for Windows bot.
llvm-svn: 373532
Matt Morehouse [Wed, 2 Oct 2019 21:38:22 +0000 (21:38 +0000)]
[sanitizer_common] Disable onprint.cpp on Android.
The test fails to find the written file on Android.
llvm-svn: 373531
Matt Morehouse [Wed, 2 Oct 2019 21:21:18 +0000 (21:21 +0000)]
[sanitizer_common] Add __sanitizer_on_print to interface list.
Should fix the current Windows buildbot failure.
llvm-svn: 373530
Vitaly Buka [Wed, 2 Oct 2019 21:20:37 +0000 (21:20 +0000)]
[compiler-rt] Use GetNextInstructionPc in signal handlers
Summary:
All other stack trace callers assume that PC contains return address.
HWAsan already use GetNextInstructionPc in similar code.
PR43339
Reviewers: eugenis, kcc, jfb
Subscribers: dexonsmith, dberris, #sanitizers, llvm-commits
Tags: #sanitizers, #llvm
Differential Revision: https://reviews.llvm.org/D68313
llvm-svn: 373529
Vitaly Buka [Wed, 2 Oct 2019 21:20:32 +0000 (21:20 +0000)]
NFC: add namespace {}
llvm-svn: 373528
Daniel Sanders [Wed, 2 Oct 2019 21:13:07 +0000 (21:13 +0000)]
[gicombiner] Add the boring boilerplate for the declarative combiner
Summary:
This is the first of a series of patches extracted from a much bigger WIP
patch. It merely establishes the tblgen pass and the way empty combiner
helpers are declared and integrated into a combiner info.
The tablegen pass takes a -combiners option to select the combiner helper
that will be generated. This can be given multiple values to generate
multiple combiner helpers at once. Doing so helps to minimize parsing
overhead.
The reason for creating a GlobalISel subdirectory in utils/TableGen is that
there will be quite a lot of non-pass files (~15) by the time the patch
series is done.
Reviewers: volkan
Subscribers: mgorny, hiraditya, simoncook, Petar.Avramovic, s.egerton, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68286
llvm-svn: 373527
Simon Pilgrim [Wed, 2 Oct 2019 21:05:21 +0000 (21:05 +0000)]
Fix uninitialized variable warning in CodeGenPGO constructor. NFCI.
llvm-svn: 373526
Simon Pilgrim [Wed, 2 Oct 2019 20:45:16 +0000 (20:45 +0000)]
ItaniumCXXABI - silence static analyzer getAs<RecordType> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but we should be able to use castAs<RecordType> directly and if not assert will fire for us.
llvm-svn: 373525
Louis Dionne [Wed, 2 Oct 2019 20:45:06 +0000 (20:45 +0000)]
[NFC][libc++abi] Convert stray tabs to spaces
llvm-svn: 373524
Sergey Dmitriev [Wed, 2 Oct 2019 20:44:45 +0000 (20:44 +0000)]
[Clang][Driver][NFC] Corrected DeviceActionBuilder methods' comments.
Differential Revision: https://reviews.llvm.org/D68355
llvm-svn: 373523
Florian Hahn [Wed, 2 Oct 2019 20:40:13 +0000 (20:40 +0000)]
Recommit "[GlobalOpt] Pass DTU to removeUnreachableBlocks instead of recomputing."
The cause for the revert should be fixed by r373513 /
a80b6c15425f82521c624ff24c5c0a34cd534d54
This reverts commit
47dbcbd8ec6bf6c0b9cbe5811e81a37cc55e73ef.
llvm-svn: 373522
Simon Pilgrim [Wed, 2 Oct 2019 20:30:37 +0000 (20:30 +0000)]
CGObjCMac - silence static analyzer dyn_cast<>/getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but we should be able to use cast<>/castAs<> directly and if not assert will fire for us.
llvm-svn: 373520
Yi-Hong Lyu [Wed, 2 Oct 2019 20:25:16 +0000 (20:25 +0000)]
[PowerPC] Fix SH field overflow issue
Store rlwinm Rx, Ry, 32, 0, 31 as rlwinm Rx, Ry, 0, 0, 31 and store
rldicl Rx, Ry, 64, 0 as rldicl Rx, Ry, 0, 0. Otherwise SH field is overflow and
fails assertion in assembly printing stage.
Differential Revision: https://reviews.llvm.org/D66991
llvm-svn: 373519
Matt Morehouse [Wed, 2 Oct 2019 20:13:21 +0000 (20:13 +0000)]
[sanitizer_common] Rename OnPrint to __sanitizer_on_print.
Summary:
https://reviews.llvm.org/D28596 exposed OnPrint in the global namespace,
which can cause collisions with user-defined OnPrint() functions.
Reviewers: vitalybuka, dvyukov
Reviewed By: vitalybuka, dvyukov
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67987
llvm-svn: 373518
Louis Dionne [Wed, 2 Oct 2019 20:07:01 +0000 (20:07 +0000)]
[libc++] Use functions instead of global variables to set libc++ build flags
This commit follows the trend of doing things per-target instead of
modifying the C++ flags globally. It does so for visibility-related
flags, other basic build flags and Windows-specific flags.
llvm-svn: 373517
Daniel Sanders [Wed, 2 Oct 2019 19:56:04 +0000 (19:56 +0000)]
Fix inconsistent indentation in TableGen.cpp
The anonymous namespace starts out (incorrectly) indented but isn't
indented from the TimeRegionsOpt declaration onwards.
llvm-svn: 373516
Evgeniy Stepanov [Wed, 2 Oct 2019 19:53:19 +0000 (19:53 +0000)]
Handle llvm.launder.invariant.group in msan.
Summary:
[MSan] handle llvm.launder.invariant.group
Msan used to give false-positives in
class Foo {
public:
virtual ~Foo() {};
};
// Return true iff *x is set.
bool f1(void **x, bool flag);
Foo* f() {
void *p;
bool found;
found = f1(&p,flag);
if (found) {
// p is always set here.
return static_cast<Foo*>(p); // False positive here.
}
return nullptr;
}
Patch by Ilya Tokar.
Reviewers: #sanitizers, eugenis
Reviewed By: #sanitizers, eugenis
Subscribers: eugenis, Prazek, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68236
llvm-svn: 373515
Evandro Menezes [Wed, 2 Oct 2019 19:44:53 +0000 (19:44 +0000)]
[TableGen] Improve error reporting of overlapping definitions (NFC)
llvm-svn: 373514
Florian Hahn [Wed, 2 Oct 2019 19:38:24 +0000 (19:38 +0000)]
[Local] Handle terminators with users in removeUnreachableBlocks.
Terminators like invoke can have users outside the current basic block.
We have to replace those users with undef, before replacing the
terminator.
This fixes a crash exposed by rL373430.
Reviewers: brzycki, asbirlea, davide, spatel
Reviewed By: asbirlea
Differential Revision: https://reviews.llvm.org/D68327
llvm-svn: 373513
Louis Dionne [Wed, 2 Oct 2019 19:31:30 +0000 (19:31 +0000)]
[libc++] Use a function to set warning flags per target
This is part of a larger shift to move to per-target settings and
eradicate global variables from the CMake build. I'm starting small
with warnings only because those are easy to transition over and I
want to see how it pans out, but we can handle all flags like exceptions
and RTTI in the future.
llvm-svn: 373511
Davide Italiano [Wed, 2 Oct 2019 19:20:24 +0000 (19:20 +0000)]
[ARM64] XPC services are unsupported on device.
While around, clean up support for a 8 years old OS.
<rdar://problem/
55916729>
llvm-svn: 373510
Davide Italiano [Wed, 2 Oct 2019 19:20:21 +0000 (19:20 +0000)]
[RegisterContextDarwin_arm64] Include the headers for getsysctlbyname.
This code is only used under __arm64__, use the correct guard.
<rdar://problem/
55916729>
llvm-svn: 373509
Davide Italiano [Wed, 2 Oct 2019 19:20:18 +0000 (19:20 +0000)]
[ObjectFileMachO] FileSpec::SetFile() now takes the style as arg.
Another block that's only compiled on __arm64__ and wasn't
updated.
<rdar://problem/
55916729>
llvm-svn: 373508
Davide Italiano [Wed, 2 Oct 2019 19:20:15 +0000 (19:20 +0000)]
[ObjectFileMachO] Catch up with FileDesc changes.
This didn't show up because nobody built __arm64__ in a while.
<rdar://problem/
55916729>
llvm-svn: 373507
Louis Dionne [Wed, 2 Oct 2019 19:11:08 +0000 (19:11 +0000)]
[libc++] Revert to using PUBLIC instead of PRIVATE when linking system libs
It turns out the benchmarks need to link against those libraries
explicitly too, so CMake's propagation of PUBLIC dependencies is
used.
llvm-svn: 373506
Alina Sbirlea [Wed, 2 Oct 2019 18:42:33 +0000 (18:42 +0000)]
[MemorySSA] Update Phi creation when inserting a Def.
MemoryPhis should be added in the IDF of the blocks newly gaining Defs.
This includes the blocks that gained a Phi and the block gaining a Def,
if the block did not have one before.
Resolves PR43427.
llvm-svn: 373505
Benjamin Kramer [Wed, 2 Oct 2019 18:33:44 +0000 (18:33 +0000)]
[Stencil] Hide implementaion detai. NFC.
llvm-svn: 373504
Benjamin Kramer [Wed, 2 Oct 2019 18:20:24 +0000 (18:20 +0000)]
[ARM] Make helpers static. NFC.
llvm-svn: 373503
Alexey Bataev [Wed, 2 Oct 2019 18:19:02 +0000 (18:19 +0000)]
[OPENMP50]Add parsing/sema analysis for declare variant score.
Context selectors may include optional score clause in format
`score(<expr>):`, where `<expr>` must be a constant integer expression.
Added parsing/sema analysis only.
llvm-svn: 373502
Jonas Devlieghere [Wed, 2 Oct 2019 18:02:36 +0000 (18:02 +0000)]
[JSON] Remove Utility/JSON.{h|cpp}
This patch is the final step in my quest to get rid of the JSON parser
in LLDB. Vedant's coverage report [1] shows that it was mostly untested.
Furthermore, the LLVM implementation has a much nicer API and using it
means one less thing to maintain for LLDB.
[1] http://lab.llvm.org:8080/coverage/coverage-reports/index.html
Differential revision: https://reviews.llvm.org/D68305
llvm-svn: 373501
Jonas Devlieghere [Wed, 2 Oct 2019 18:02:32 +0000 (18:02 +0000)]
[JSON] Use LLVM's library for encoding JSON in GDBRemoteCommunicationServerCommon
This patch replaces the LLDB's JSON implementation with the one from
LLVM in GDBRemoteCommunicationServerCommon.
Differential revision: https://reviews.llvm.org/D68304
llvm-svn: 373500
Jonas Devlieghere [Wed, 2 Oct 2019 18:02:29 +0000 (18:02 +0000)]
[JSON] Use LLVM's library for encoding JSON in GDBRemoteCommunicationServerPlatform
This patch replaces the LLDB's JSON implementation with the one from
LLVM in GDBRemoteCommunicationServerPlatform.
Differential revision: https://reviews.llvm.org/D68302
llvm-svn: 373499
Jonas Devlieghere [Wed, 2 Oct 2019 18:02:26 +0000 (18:02 +0000)]
[JSON] Use LLVM's library for encoding JSON in GDBRemoteCommunicationClient
This patch replaces the LLDB's JSON implementation with the one from
LLVM in GDBRemoteCommunicationClient.
Differential revision: https://reviews.llvm.org/D68301
llvm-svn: 373498
Jonas Devlieghere [Wed, 2 Oct 2019 18:02:23 +0000 (18:02 +0000)]
[JSON] Use LLVM's library for encoding JSON in GDBRemoteCommunicationServerLLGS
This patch replaces the LLDB's JSON implementation with the one from
LLVM in GDBRemoteCommunicationServerLLGS.
Differential revision: https://reviews.llvm.org/D68299
llvm-svn: 373497
Craig Topper [Wed, 2 Oct 2019 17:47:09 +0000 (17:47 +0000)]
[X86] Rewrite to the vXi1 subvector insertion code to not rely on the value of bits that might be undef
The previous code tried to do a trick where we would extract the subvector from the location we were inserting. Then xor that with the new value. Take the xored value and clear out the bits above the subvector size. Then shift that xored subvector to the insert location. And finally xor that with the original vector. Since the old subvector was used in both xors, this would leave just the new subvector at the inserted location. Since the surrounding bits had been zeroed no other bits of the original vector would be modified.
Unfortunately, if the old subvector came from undef we might aggressively propagate the undef. Then we end up with the XORs not cancelling because they aren't using the same value for the two uses of the old subvector. @bkramer gave me a case that demonstrated this, but we haven't reduced it enough to make it easily readable to see what's happening.
This patch uses a safer, but more costly approach. It isolate the bits above the insertion and bits below the insert point and ORs those together leaving 0 for the insertion location. Then widens the subvector with 0s in the upper bits, shifts it into position with 0s in the lower bits. Then we do another OR.
Differential Revision: https://reviews.llvm.org/D68311
llvm-svn: 373495
Aditya Kumar [Wed, 2 Oct 2019 17:35:06 +0000 (17:35 +0000)]
Fix: Actually erase remove the elements from AssumeHandles
Reviewers: sdmitriev, tejohnson
Reviewed by: tejohnson
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68318
llvm-svn: 373494
Thomas Lively [Wed, 2 Oct 2019 17:34:44 +0000 (17:34 +0000)]
[WebAssembly] Error when using wasm64 for ISel
Summary:
64-bit WebAssembly (wasm64) is not specified and not supported in the
WebAssembly backend. We do have support for it in clang, however, and
we would like to keep that support because we expect wasm64 to be
specified and supported in the future. For now add an error when
trying to use wasm64 from the backend to minimize user confusion from
unexplained crashes.
Reviewers: aheejin, dschuff, sunfish
Subscribers: sbc100, jgravelle-google, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68254
llvm-svn: 373493
GN Sync Bot [Wed, 2 Oct 2019 17:23:41 +0000 (17:23 +0000)]
gn build: Merge r373489
llvm-svn: 373492
Piotr Sobczak [Wed, 2 Oct 2019 17:22:36 +0000 (17:22 +0000)]
[AMDGPU] Extend buffer intrinsics with swizzling
Summary:
Extend cachepolicy operand in the new VMEM buffer intrinsics
to supply information whether the buffer data is swizzled.
Also, propagate this information to MIR.
Intrinsics updated:
int_amdgcn_raw_buffer_load
int_amdgcn_raw_buffer_load_format
int_amdgcn_raw_buffer_store
int_amdgcn_raw_buffer_store_format
int_amdgcn_raw_tbuffer_load
int_amdgcn_raw_tbuffer_store
int_amdgcn_struct_buffer_load
int_amdgcn_struct_buffer_load_format
int_amdgcn_struct_buffer_store
int_amdgcn_struct_buffer_store_format
int_amdgcn_struct_tbuffer_load
int_amdgcn_struct_tbuffer_store
Furthermore, disable merging of VMEM buffer instructions
in SI Load/Store optimizer, if the "swizzled" bit on the instruction
is on.
The default value of the bit is 0, meaning that data in buffer
is linear and buffer instructions can be merged.
There is no difference in the generated code with this commit.
However, in the future it will be expected that front-ends
use buffer intrinsics with correct "swizzled" bit set.
Reviewers: arsenm, nhaehnle, tpr
Reviewed By: nhaehnle
Subscribers: arsenm, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, arphaman, jfb, Petar.Avramovic, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68200
llvm-svn: 373491
Aaron Ballman [Wed, 2 Oct 2019 17:18:57 +0000 (17:18 +0000)]
Add the misc-init-local-variables check.
This checks finds all primitive type local variables (integers, doubles, pointers) that are declared without an initial value. Includes fixit functionality to initialize said variables with a default value. This is zero for most types and NaN for floating point types. The use of NaNs is copied from the D programming language.
Patch by Jussi Pakkanen.
llvm-svn: 373489
Florian Hahn [Wed, 2 Oct 2019 16:58:13 +0000 (16:58 +0000)]
[Local] Remove unused LazyValueInfo pointer from removeUnreachableBlock.
There are no users that pass in LazyValueInfo, so we can simplify the
function a bit.
Reviewers: brzycki, asbirlea, davide
Reviewed By: davide
Differential Revision: https://reviews.llvm.org/D68297
llvm-svn: 373488
Louis Dionne [Wed, 2 Oct 2019 16:51:42 +0000 (16:51 +0000)]
[libc++] Use PRIVATE instead of PUBLIC when linking against system libs
llvm-svn: 373487
Teresa Johnson [Wed, 2 Oct 2019 16:36:59 +0000 (16:36 +0000)]
[ThinLTO/WPD] Ensure devirtualized targets use promoted symbol when necessary
Summary:
This fixes a hole in the handling of devirtualized targets that were
local but need promoting due to devirtualization in another module. We
were not correctly referencing the promoted symbol in some cases. Make
sure the code that updates the name also looks at the ExportedGUIDs set
by utilizing a callback that checks all conditions (the callback
utilized by the internalization/promotion code).
Reviewers: pcc, davidxl, hiraditya
Subscribers: mehdi_amini, Prazek, inglorion, steven_wu, dexonsmith, dang, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68159
llvm-svn: 373485
Simon Pilgrim [Wed, 2 Oct 2019 16:20:28 +0000 (16:20 +0000)]
[CodeGen] Remove unused MachineMemOperand::print wrappers (PR41772)
As noted on PR41772, the static analyzer reports that the MachineMemOperand::print partial wrappers set a number of args to null pointers that were then dereferenced in the actual implementation.
It turns out that these wrappers are not being used at all (hence why we're not seeing any crashes), so I'd like to propose we just get rid of them.
Differential Revision: https://reviews.llvm.org/D68208
llvm-svn: 373484
Sanjay Patel [Wed, 2 Oct 2019 16:12:42 +0000 (16:12 +0000)]
[SLP] add test for vectorization of different widths (PR28457); NFC
llvm-svn: 373483
Michal Gorny [Wed, 2 Oct 2019 16:06:50 +0000 (16:06 +0000)]
[llvm] [cmake] Add install targets for missing distribution components
Add install targets as necessary to include all files normally installed
in LLVM_DISTRIBUTION_COMPONENTS. This includes targets for Sphinx docs,
opt-viewer Python modules and TableGens.
Differential Revision: https://reviews.llvm.org/D68339
llvm-svn: 373482
Simon Pilgrim [Wed, 2 Oct 2019 16:03:45 +0000 (16:03 +0000)]
LowerExpectIntrinsic handlePhiDef - silence static analyzer dyn_cast<PHINode> null dereference warning. NFCI.
The static analyzer is warning about a potential null dereference, but we should be able to use cast<PHINode> directly and if not assert will fire for us.
llvm-svn: 373481
Simon Pilgrim [Wed, 2 Oct 2019 16:03:36 +0000 (16:03 +0000)]
Type - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.
llvm-svn: 373480
Aditya Kumar [Wed, 2 Oct 2019 15:36:39 +0000 (15:36 +0000)]
[CodeExtractor] NFC: Refactor sanity checks into isEligible
Reviewers: fhahn
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68331
llvm-svn: 373479
Simon Pilgrim [Wed, 2 Oct 2019 15:31:25 +0000 (15:31 +0000)]
Silence static analyzer getAs<VectorType> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<VectorType> directly and if not assert will fire for us.
llvm-svn: 373478
Hans Wennborg [Wed, 2 Oct 2019 14:35:06 +0000 (14:35 +0000)]
Reapply r373431 "Switch lowering: omit range check for bit tests when default is unreachable (PR43129)"
This was reverted in r373454 due to breaking the expensive-checks bot.
This version addresses that by omitting the addSuccessorWithProb() call
when omitting the range check.
> Switch lowering: omit range check for bit tests when default is unreachable (PR43129)
>
> This is modeled after the same functionality for jump tables, which was
> added in r357067.
>
> Differential revision: https://reviews.llvm.org/D68131
llvm-svn: 373477
George Rimar [Wed, 2 Oct 2019 14:11:35 +0000 (14:11 +0000)]
[llvm-readelf] - Report a warning when .hash section contains a chain with a cycle.
It is possible to craft a .hash section that triggers an infinite loop
in llvm-readelf code. This patch fixes the issue and introduces
a warning.
Differential revision: https://reviews.llvm.org/D68086
llvm-svn: 373476
Simon Pilgrim [Wed, 2 Oct 2019 14:02:27 +0000 (14:02 +0000)]
SemaOverload - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.
llvm-svn: 373475
Simon Pilgrim [Wed, 2 Oct 2019 14:02:18 +0000 (14:02 +0000)]
SemaInit - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.
llvm-svn: 373474
George Rimar [Wed, 2 Oct 2019 13:52:37 +0000 (13:52 +0000)]
[yaml2obj] - Alow Size tag for describing SHT_HASH sections.
This is a follow-up for D68085 which allows using "Size"
tag together with "Content" tag or alone.
Differential revision: https://reviews.llvm.org/D68216
llvm-svn: 373473
Shaurya Gupta [Wed, 2 Oct 2019 13:52:14 +0000 (13:52 +0000)]
[Clangd] ExtractFunction: Don't extract body of enclosing function.
Summary:
This patch disable extraction of the body of the enclosing function.
`void f() [[{}]]`
Extracting this CompoundStmt would leave the enclosing function without
a body.
Reviewers: sammccall, kadircet
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68245
llvm-svn: 373472
Shaurya Gupta [Wed, 2 Oct 2019 13:51:06 +0000 (13:51 +0000)]
[Clangd] Ensure children are always RootStmt in ExtractFunction (Fixes #153)
Summary:
We weren't always checking if children are RootStmts in ExtractFunction.
For `void f([[int a]]);`, the ParmVarDecl appeared as a RootStmt since
we didn't perform the check and ended up being casted to a (null) Stmt.
Reviewers: sammccall, kadircet
Subscribers: kristof.beyls, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68182
llvm-svn: 373471
Raphael Isemann [Wed, 2 Oct 2019 13:46:17 +0000 (13:46 +0000)]
[lldb] Fix evaluation of nested classes with parent from other CU
This makes sure that we associate DIEs that are imported from other CUs with the appropriate decl context.
Without this fix, nested classes can be dumped directly into their CU context if their parent was imported from another CU.
Reviewed By: teemperor, labath
Differential Revision: https://reviews.llvm.org/D68278
Patch by Jaroslav Sevcik!
llvm-svn: 373470
Djordje Todorovic [Wed, 2 Oct 2019 13:24:45 +0000 (13:24 +0000)]
[llvm-dwarfdump] Fix dumping of wrong locstats map
llvm-svn: 373469
Kerry McLaughlin [Wed, 2 Oct 2019 13:09:54 +0000 (13:09 +0000)]
[AArch64][SVE] Implement int_aarch64_sve_cnt intrinsic
Summary: This patch includes tests for the VecOfBitcastsToInt type added by D68021
Reviewers: c-rhodes, sdesmalen, rovka
Reviewed By: c-rhodes
Subscribers: tschuett, kristof.beyls, hiraditya, rkruppe, psnobl, llvm-commits, cfe-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68023
llvm-svn: 373468
Simon Pilgrim [Wed, 2 Oct 2019 13:09:12 +0000 (13:09 +0000)]
MemorySSAUpdater::applyInsertUpdates - silence static analyzer dyn_cast<MemoryAccess> null dereference warning. NFCI.
The static analyzer is warning about a potential null dereference, but we should be able to use cast<MemoryAccess> directly and if not assert will fire for us.
llvm-svn: 373467
Simon Pilgrim [Wed, 2 Oct 2019 13:09:04 +0000 (13:09 +0000)]
MemorySSA tryOptimizePhi - assert that we've found a DefChainEnd. NFCI.
Silences static analyzer null dereference warning.
llvm-svn: 373466
Simon Pilgrim [Wed, 2 Oct 2019 13:08:56 +0000 (13:08 +0000)]
LoopAccessAnalysis isConsecutiveAccess() - silence static analyzer dyn_cast<SCEVConstant> null dereference warning. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use cast<SCEVConstant> directly and if not assert will fire for us.
llvm-svn: 373465
Simon Pilgrim [Wed, 2 Oct 2019 13:08:46 +0000 (13:08 +0000)]
AsmPrinter - emitGlobalConstantFP - silence static analyzer null dereference warning. NFCI.
All the calls to emitGlobalConstantFP should provide a nonnull Type for the float.
llvm-svn: 373464
GN Sync Bot [Wed, 2 Oct 2019 12:51:47 +0000 (12:51 +0000)]
gn build: Merge r373462
llvm-svn: 373463
James Molloy [Wed, 2 Oct 2019 12:46:44 +0000 (12:46 +0000)]
[ModuloSchedule] Peel out prologs and epilogs, generate actual code
Summary:
This extends the PeelingModuloScheduleExpander to generate prolog and epilog code,
and correctly stitch uses through the prolog, kernel, epilog DAG.
The key concept in this patch is to ensure that all transforms are *local*; only a
function of a block and its immediate predecessor and successor. By defining the problem in this way
we can inductively rewrite the entire DAG using only local knowledge that is easy to
reason about.
For example, we assume that all prologs and epilogs are near-perfect clones of the
steady-state kernel. This means that if a block has an instruction that is predicated out,
we can redirect all users of that instruction to that equivalent instruction in our
immediate predecessor. As all blocks are clones, every instruction must have an equivalent in
every other block.
Similarly we can make the assumption by construction that if a value defined in a block is used
outside that block, the only possible user is its immediate successors. We maintain this
even for values that are used outside the loop by creating a limited form of LCSSA.
This code isn't small, but it isn't complex.
Enabled a bunch of testing from Hexagon. There are a couple of tests not enabled yet;
I'm about 80% sure there isn't buggy codegen but the tests are checking for patterns
that we don't produce. Those still need a bit more investigation. In the meantime we
(Google) are happy with the code produced by this on our downstream SMS implementation,
and believe it generates correct code.
Subscribers: mgorny, hiraditya, jsji, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68205
llvm-svn: 373462
Fangrui Song [Wed, 2 Oct 2019 12:41:25 +0000 (12:41 +0000)]
[llvm-objcopy] Add --set-section-alignment
Fixes PR43181. This option was recently added to GNU objcopy (binutils
PR24942).
`llvm-objcopy -I binary -O elf64-x86-64 --set-section-alignment .data=8` can set the alignment of .data.
Reviewed By: grimar, jhenderson, rupprecht
Differential Revision: https://reviews.llvm.org/D67656
llvm-svn: 373461
Raphael Isemann [Wed, 2 Oct 2019 12:38:04 +0000 (12:38 +0000)]
[lldb][NFC] Remove ClangASTContext::Clear
We now only use this function directly after initialization. As Clear()
resets the ASTContext back to its initial state, this is just a no-op.
There are no other users for this and we no longer can set the ASTContext
after construction, so Clear has no useful purpose anymore. It's also
mostly copy-pasted from Finalize().
llvm-svn: 373460
Florian Hahn [Wed, 2 Oct 2019 12:32:52 +0000 (12:32 +0000)]
[InstCombine] Simplify fma multiplication to nan for undef or nan operands.
In similar fashion to D67721, we can simplify FMA multiplications if any
of the operands is NaN or undef. In instcombine, we will simplify the
FMA to an fadd with a NaN operand, which in turn gets folded to NaN.
Note that this just changes SimplifyFMAFMul, so we still not catch the
case where only the Add part of the FMA is Nan/Undef.
Reviewers: cameron.mcinally, mcberg2017, spatel, arsenm
Reviewed By: cameron.mcinally
Differential Revision: https://reviews.llvm.org/D68265
llvm-svn: 373459