Igor Kudrin [Thu, 14 Jan 2021 08:03:44 +0000 (15:03 +0700)]
[libcxx testing] Fix UB in tests for std::lock_guard
If mutex::try_lock() is called in a thread that already owns the mutex,
the behavior is undefined. The patch fixes the issue by creating another
thread, where the call is allowed.
Differential Revision: https://reviews.llvm.org/D94656
Amara Emerson [Fri, 15 Jan 2021 08:57:51 +0000 (00:57 -0800)]
[AArch64][GlobalISel] Fix fallbacks introduced for G_SITOFP in
8f283cafddfa8d6d01a94b48cdc5d25817569e91
If we have an integer->fp convert that has differing sizes, e.g. s32 to s64,
then don't try to convert it to AArch64::G_SITOF since it won't select.
Georgii Rymar [Fri, 15 Jan 2021 08:57:32 +0000 (11:57 +0300)]
[llvm-readobj] - Fix the compilation with GCC < 7.0.
This addressed post commit comments for D93900.
GCC had an issue and requires placing a specialization of
`printUnwindInfo` to a namespace to compile:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56480
Qiu Chaofan [Fri, 15 Jan 2021 08:40:41 +0000 (16:40 +0800)]
[Clang] Mutate long-double math builtins into f128 under IEEE-quad
Under -mabi=ieeelongdouble on PowerPC, IEEE-quad floating point semantic
is used for long double. This patch mutates call to related builtins
into f128 version on PowerPC. And in theory, this should be applied to
other targets when their backend supports IEEE 128-bit style libcalls.
GCC already has these mutations except nansl, which is not available on
PowerPC along with other variants (nans, nansf).
Reviewed By: RKSimon, nemanjai
Differential Revision: https://reviews.llvm.org/D92080
Nikita Popov [Fri, 15 Jan 2021 07:59:17 +0000 (08:59 +0100)]
Revert "Reapply "ADT: Fix reference invalidation in SmallVector::push_back and single-element insert""
This reverts commit
260a856c2abcef49c7cb3bdcd999701db3e2af38.
This reverts commit
3043e5a5c33c4c871f4a1dfd621a8839f9a1f0b3.
This reverts commit
49142991a685bd427d7e877c29c77371dfb7634c.
This change had a larger than anticipated compile-time impact,
possibly because the small value optimization is not working as
intended. See D93779.
Andy Wingo [Thu, 14 Jan 2021 09:15:56 +0000 (10:15 +0100)]
[WebAssembly] Add support for table linking to wasm-ld
This patch adds support to wasm-ld for linking multiple table references
together, in a manner similar to wasm globals. The indirect function
table is synthesized as needed.
To manage the transitional period in which the compiler doesn't yet
produce TABLE_NUMBER relocations and doesn't residualize table symbols,
the linker will detect object files which have table imports or
definitions, but no table symbols. In that case it will synthesize
symbols for the defined and imported tables.
As a change, relocatable objects are now written with table symbols,
which can cause symbol renumbering in some of the tests. If no object
file requires an indirect function table, none will be written to the
file. Note that for legacy ObjFile inputs, this test is conservative: as
we don't have relocs for each use of the indirecy function table, we
just assume that any incoming indirect function table should be
propagated to the output.
Differential Revision: https://reviews.llvm.org/D91870
KAWASHIMA Takahiro [Mon, 4 Jan 2021 02:25:42 +0000 (11:25 +0900)]
[AArch64] Add Fujitsu A64FX scheduling model
Basic support of A64FX was added in D75594 but its scheduling model
was missing. This commit adds the scheduling model. Also, this commit
amends/adds some subtarget parameters of A64FX.
The A64FX Microarchitecture Manual, which is source information of
this commit, is on GitHub.
https://github.com/fujitsu/A64FX/
Differential Revision: https://reviews.llvm.org/D93791
Jan Svoboda [Wed, 13 Jan 2021 11:50:19 +0000 (12:50 +0100)]
[clang][cli] Specify KeyPath prefixes via TableGen classes
It turns out we need to handle `LangOptions` separately from the rest of the options. `LangOptions` used to be conditionally parsed only when `!(DashX.getFormat() == InputKind::Precompiled || DashX.getLanguage() == Language::LLVM_IR)` and we need to restore this order (for more info, see D94682).
We could do this similarly to how `DiagnosticOptions` are handled: via a counterpart to the `IsDiag` mix-in (e.g. `IsLang`). These mix-ins would prefix the option key path with the appropriate `CompilerInvocation::XxxOpts` member. However, this solution would be problematic, as we'd now have two kinds of options (`Lang` and `Diag`) with seemingly incomplete key paths in the same file. To understand what `CompilerInvocation` member an option affects, one would need to read the whole option definition and notice the `IsDiag` or `IsLang` class.
Instead, this patch introduces more robust way to handle different kinds of options separately: via the `KeyPathAndMacroPrefix` class. We have one specialization of that class per `CompilerInvocation` member (e.g. `LangOpts`, `DiagnosticOpts`, etc.). Now, instead of specifying a key path with `"LangOpts->UndefPrefixes"`, we use `LangOpts<"UndefPrefixes">`. This keeps the readability intact (you don't have to look for the `IsLang` mix-in, the key path is complete on its own) and allows us to specify a custom macro prefix within `LangOpts`.
Reviewed By: Bigcheese
Differential Revision: https://reviews.llvm.org/D94676
Jan Svoboda [Thu, 14 Jan 2021 07:34:17 +0000 (08:34 +0100)]
[clang][cli] NFC: Decrease the scope of ParseCodeGenArgs parameters
Instead of passing the whole `TargetOptions` and `FrontendOptions` to `ParseCodeGenArgs` give it only the necessary members.
This makes tracking the dependencies between various parsers and option groups easier.
Reviewed By: Bigcheese
Differential Revision: https://reviews.llvm.org/D94675
Jan Svoboda [Thu, 14 Jan 2021 07:26:12 +0000 (08:26 +0100)]
[clang][cli] NFC: Decrease the scope of ParseLangArgs parameters
Instead of passing the whole `TargetOptions` and `PreprocessorOptions` to `ParseLangArgs` give it only the necessary members.
This makes tracking the dependencies between various parsers and option groups easier.
Reviewed By: Bigcheese
Differential Revision: https://reviews.llvm.org/D94674
Aart Bik [Thu, 14 Jan 2021 20:04:49 +0000 (12:04 -0800)]
[mlir][sparse] retry sparse-only for cyclic iteration graphs
This is a very minor improvement during iteration graph construction.
If the first attempt considering the dimension order of all tensors fails,
a second attempt is made using the constraints of sparse tensors only.
Dense tensors prefer dimension order (locality) but provide random access
if needed, enabling the compilation of more sparse kernels.
Reviewed By: penpornk
Differential Revision: https://reviews.llvm.org/D94709
Yashaswini [Fri, 15 Jan 2021 05:42:49 +0000 (11:12 +0530)]
Add Semantic check for Flang OpenMP 4.5 - 2.7.1 Do Loop restrictions on single directive and firstprivate clause.
Semantic checks added to check the worksharing 'single' region closely nested inside a worksharing 'do' region. And also to check whether the 'do' iteration variable is a variable in 'Firstprivate' clause.
Files:
check-directive-structure.h
check-omp-structure.h
check-omp-structure.cpp
Testcases:
omp-do01-positivecase.f90
omp-do01.f90
omp-do05-positivecase.f90
omp-do05.f90
Reviewed by: Kiran Chandramohan @kiranchandramohan , Valentin Clement @clementval
Differential Revision: https://reviews.llvm.org/D93205
Kazu Hirata [Fri, 15 Jan 2021 04:30:34 +0000 (20:30 -0800)]
[llvm] Remove redundant return and continue statements (NFC)
Identified with readability-redundant-control-flow.
Kazu Hirata [Fri, 15 Jan 2021 04:30:32 +0000 (20:30 -0800)]
[llvm] Use llvm::drop_begin (NFC)
Kazu Hirata [Fri, 15 Jan 2021 04:30:31 +0000 (20:30 -0800)]
[CodeGen, Transforms] Use llvm::sort (NFC)
Cheng Wang [Wed, 25 Nov 2020 13:12:48 +0000 (21:12 +0800)]
[libc] Add memmove implementation.
Use `memcpy` rather than copying bytes one by one, for there might be large
size structs to move.
Reviewed By: gchatelet, sivachandra
Differential Revision: https://reviews.llvm.org/D93195
Amara Emerson [Thu, 14 Jan 2021 18:56:04 +0000 (10:56 -0800)]
[AArch64][GlobalISel] Add selection support for fpr bank source variants of G_SITOFP and G_UITOFP.
In order to import patterns for these, we need to define new ops that can map to
the AArch64ISD::[SU]ITOF nodes. We then transform fpr->fpr variants of the generic
opcodes to these custom opcodes in preisel-lowering. We have to do it here and
not the PostLegalizer combiner because this has to run after regbankselect.
Differential Revision: https://reviews.llvm.org/D94702
Yitzhak Mandelbaum [Tue, 22 Dec 2020 15:02:56 +0000 (15:02 +0000)]
[libTooling] Change `addInclude` to use expansion locs.
This patch changes the default range used to anchor the include insertion to use
an expansion loc. This ensures that the location is valid, when the user relies
on the default range.
Driveby: extend a FIXME for a problem that was emphasized by this change; fix some spellings.
Differential Revision: https://reviews.llvm.org/D93703
Jon Chesterfield [Fri, 15 Jan 2021 02:16:32 +0000 (02:16 +0000)]
[libomptarget][nvptx] Reduce calls to cuda header
[libomptarget][nvptx] Reduce calls to cuda header
Remove use of clock_t in favour of a builtin. Drop a preprocessor branch.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D94731
Jian Cai [Fri, 15 Jan 2021 01:33:20 +0000 (17:33 -0800)]
Reland "[AsmParser] make .ascii support spaces as separators"
This relands commit
e0963ae274be5b071d1e1b00f5e4e019483c09e9, which was
reverted on commit
82c4153e66fa284729da86a8d6c302d4b8cec86c due to a
test failure, which turned out to be a false positive.
Amara Emerson [Thu, 14 Jan 2021 18:53:56 +0000 (10:53 -0800)]
[AArch64][GlobalISel] Assign FPR banks to loads which are used by integer->float conversions.
G_[US]ITOFP users of loads on AArch64 can operate on both gpr and fpr banks for scalars.
Because of this, if their source is a load, then that load can be assigned to an fpr
bank and therefore avoid having to do a cross bank copy via a gpr->fpr conversion.
Differential Revision: https://reviews.llvm.org/D94701
Tim Keith [Fri, 15 Jan 2021 00:31:48 +0000 (16:31 -0800)]
[flang] Fix use-associated procedure in generic
When a use-associated procedure was included in a generic, we weren't
correctly recording that fact. The ultimate symbol was added rather than
the local symbol.
Also, improve the message emitted for the specific procedure by
mentioning the module it came from.
This fixes one of the problems in https://bugs.llvm.org/show_bug.cgi?id=48648.
Differential Revision: https://reviews.llvm.org/D94696
Jon Chesterfield [Fri, 15 Jan 2021 00:19:48 +0000 (00:19 +0000)]
[libomptarget][nvptx][nfc] Move target_impl functions out of header
[libomptarget][nvptx][nfc] Move target_impl functions out of header
This removes most of the differences between the two target_impl.h.
Also change name mangling from C to C++ for __kmpc_impl_*_lock.
Reviewed By: tianshilei1992
Differential Revision: https://reviews.llvm.org/D94728
MaheshRavishankar [Thu, 14 Jan 2021 23:41:12 +0000 (15:41 -0800)]
[mlir][Linalg] NFC: Verify tiling on linalg.generic operation on tensors.
With the recent changes to linalg on tensor semantics, the tiling
operations works out-of-the-box for generic operations. Add a test to
verify that and some minor refactoring.
Differential Revision: https://reviews.llvm.org/D93077
MaheshRavishankar [Thu, 14 Jan 2021 23:41:04 +0000 (15:41 -0800)]
[mlir][Linalg] Add canonicalization of linalg op -> dim op.
Add canonicalization to replace use of the result of a linalg
operation on tensors in a dim operation, to use one of the operands of
the linalg operations instead. This allows the linalg op itself to be
deleted when all its non-dim uses are removed (say through tiling, etc.)
Differential Revision: https://reviews.llvm.org/D93076
Shilei Tian [Fri, 15 Jan 2021 00:14:19 +0000 (19:14 -0500)]
[OpenMP] Remove omptarget-nvptx from deps as it is no longer a valid target
`omptarget-nvptx` is still a dependence for `check-libomptarget-nvtpx`
although it has been removed by D94573.
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D94725
Sanjay Patel [Thu, 14 Jan 2021 22:26:48 +0000 (17:26 -0500)]
[SLP] remove unnecessary state in matching reductions
This is NFC-intended. I'm still trying to figure out
how the loop where this is used works. It does not
seem like we require this data at all, but it's
hard to confirm given the complicated predicates.
MaheshRavishankar [Thu, 14 Jan 2021 22:58:04 +0000 (14:58 -0800)]
[mlir][Linalg] Add canonicalization to remove no-op linalg operations.
linalg.generic/indexed_generic operations on tensors whose body is
just yielding the (non-induction variable) arguments of the operation
can be canonicalized by replacing uses of the result with the
corresponding arguments.
Differential Revision: https://reviews.llvm.org/D94581
Sam McCall [Thu, 14 Jan 2021 22:54:51 +0000 (23:54 +0100)]
[clangd] Reduce logspam for CDB scanning
Andrew Young [Thu, 14 Jan 2021 10:07:29 +0000 (02:07 -0800)]
[mlir] Remove over specified memory effects
The standard and gpu dialect both have `alloc` operations which use the
memory effect `MemAlloc`. In both cases, it is specified on both the
operation itself and on the result. This results in two memory effects
being created for these operations. When `MemAlloc` is defined on an
operation, it represents some background effect which the compiler
cannot reason about, and inhibits the ability of the compiler to
remove dead `std.alloc` operations. This change removes the uneeded
`MemAlloc` effect from these operations and leaves the effect on the
result, which allows dead allocs to be erased.
There is the same problem, but to a lesser extent, with MemFree, MemRead
and MemWrite. Over-specifying these traits is not currently inhibiting
any optimization.
Differential Revision: https://reviews.llvm.org/D94662
Sam Elliott [Thu, 14 Jan 2021 22:32:17 +0000 (22:32 +0000)]
[RISCV][NFC] Regenerate Calling Convention Tests
This regenerates these tests using utils/update_llc_test_checks.py so
that future changes in this area don't have the noise of lots of `@plt`
lines being added.
I also removed the `nounwind`s from the stack-realignment.ll test to
increase coverage on the generated call frame information.
Teresa Johnson [Thu, 14 Jan 2021 22:07:11 +0000 (14:07 -0800)]
[LTO] Test format fix (NFC)
As requested in D91583, use ';;' instead of ';' to preceed comments in
lld test. I did this in the equivalent gold test as well.
Alexandre Ganea [Thu, 14 Jan 2021 22:03:13 +0000 (17:03 -0500)]
Re-land [Support] On Windows, take the affinity mask into account
The number of hardware threads available to a ThreadPool can be limited if setting an affinity mask.
For example:
> start /B /AFFINITY 0xF lld-link.exe ...
Would let LLD only use 4 hyper-threads.
Previously, there was an outstanding issue on Windows Server 2019 on dual-CPU machines, which was preventing from using both CPU sockets. In normal conditions, when no affinity mask was set, ProcessorGroup::AllThreads was different from ProcessorGroup::UsableThreads. The previous code in llvm/lib/Support/Windows/Threading.inc L201 was improperly assuming those two values to be equal, and consequently was limiting the execution to only one CPU socket.
Differential Revision: https://reviews.llvm.org/D92419
Craig Topper [Thu, 14 Jan 2021 21:41:35 +0000 (13:41 -0800)]
[RISCV] Optimize select_cc after fp compare expansion
Some FP compares expand to a sequence ending with (xor X, 1) to invert the result. If
the consumer is a select_cc we can likely get rid of this xor by fixing
up the select_cc condition.
This patch combines (select_cc (xor X, 1), 0, setne, trueV, falseV) -
(select_cc X, 0, seteq, trueV, falseV) if we can prove X is 0/1.
Reviewed By: lenary
Differential Revision: https://reviews.llvm.org/D94546
Douglas Yung [Thu, 14 Jan 2021 21:26:21 +0000 (13:26 -0800)]
Add -fexceptions to test as it uses them and fails on platforms where it is not on by default (like the PS4).
Roland McGrath [Thu, 14 Jan 2021 01:22:45 +0000 (17:22 -0800)]
[libc] Use #undef isascii in specific header
Standard C allows all standard headers to declare macros for all
their functions. So after possibly including any standard header
like <ctype.h>, it's perfectly normal for any and all of the
functions it declares to be defined as macros. Standard C requires
explicit `#undef` before using that identifier in a way that is not
compatible with function-like macro definitions.
The C standard's rules for this are extended to POSIX as well for
the interfaces it defines, and it's the expected norm for
nonstandard extensions declared by standard C library headers too.
So far the only place this has come up for llvm-libc's code is with
the isascii function in Fuchsia's libc. But other cases can arise
for any standard (or common extension) function names that source
code in llvm-libc is using in nonstandard ways, i.e. as C++
identifiers.
The only correct and robust way to handle the possible inclusion of
standard C library headers when building llvm-libc source code is to
use `#undef` explicitly for each identifier before using it. The
easy and obvious place to do that is in the per-function header.
This requires that all code, such as test code, that might include
any standard C library headers, e.g. via utils/UnitTest/Test.h, make
sure to include those *first* before the per-function header.
This change does that for isascii and its test. But it should be
done uniformly for all the code and documented as a consistent
convention so new implementation files are sure to get this right.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D94642
Nico Weber [Thu, 14 Jan 2021 21:19:25 +0000 (16:19 -0500)]
[gn build] (manually) port
387d3c24792f
Jinsong Ji [Thu, 14 Jan 2021 20:35:56 +0000 (20:35 +0000)]
[PowerPC] Only use some extend mne if assembler is modern enough
Legacy AIX assembly might not support all extended mnes,
add one feature bit to control the generation in MC,
and avoid generating them by default on AIX.
Reviewed By: sfertile
Differential Revision: https://reviews.llvm.org/D94458
Sean Silva [Sat, 9 Jan 2021 00:25:47 +0000 (16:25 -0800)]
[mlir][docs] Bring bufferization docs up to date.
This spilts out BufferDeallocationInternals.md, since buffer
deallocation is not part of bufferization per se.
Differential Revision: https://reviews.llvm.org/D94351
Adam Czachorowski [Thu, 14 Jan 2021 19:54:16 +0000 (20:54 +0100)]
[clang] Do not crash when CXXRecordDecl has a non-CXXRecordDecl base.
This can happen on some invalid code, like the included test case.
Differential Revision: https://reviews.llvm.org/D94704
Tres Popp [Thu, 14 Jan 2021 20:04:37 +0000 (21:04 +0100)]
[mlir] Remove TosaToLinalg dependency on all Passes
TosaToLinalg was depending on its header file indirectly through
Passes.h rather than directly. This removes that indirection.
Differential Revision: https://reviews.llvm.org/D94706
River Riddle [Thu, 14 Jan 2021 19:57:17 +0000 (11:57 -0800)]
[mlir][PatternRewriter] Add a new hook to selectively replace uses of an operation
This revision adds a new `replaceOpWithIf` hook that replaces uses of an operation that satisfy a given functor. If all uses are replaced, the operation gets erased in a similar manner to `replaceOp`. DialectConversion support will be added in a followup as this requires adjusting how replacements are tracked there.
Differential Revision: https://reviews.llvm.org/D94632
Craig Topper [Thu, 14 Jan 2021 19:44:02 +0000 (11:44 -0800)]
[RISCV] Merge Utils library into MCTargetDesc
MCTargetDesc includes headers from Utils and Utils includes headers
from MCTargetDesc. So from a library layering perspective it makes sense
for them to be in the same library. I guess the other option might be to
move the tablegen includes from RISCVMCTargetDesc.h to RISCVBaseInfo.h
so that RISCVBaseInfo.h didn't need to include RISCVMCTargetDesc.h.
Everything else that depends on Utils also depends on MCTargetDesc so
having one library seemed simpler.
Differential Revision: https://reviews.llvm.org/D93168
Fangrui Song [Thu, 14 Jan 2021 19:46:22 +0000 (11:46 -0800)]
[Driver] -gsplit-dwarf: Produce .dwo regardless of -gN for IR input
This generalizes D94647 to IR input, as suggested by @tejohnson.
Ideally the driver should just forward split dwarf options, but doing this currently will cause `clang -gsplit-dwarf -c a.c` to create a .dwo with just `.strtab`.
Reviewed By: dblaikie, tejohnson
Differential Revision: https://reviews.llvm.org/D94655
River Riddle [Thu, 14 Jan 2021 19:35:15 +0000 (11:35 -0800)]
[mlir][OpFormatGen] Format enum attribute cases as keywords when possible
In the overwhelmingly common case, enum attribute case strings represent valid identifiers in MLIR syntax. This revision updates the format generator to format as a keyword in these cases, removing the need to wrap values in a string. The parser still retains the ability to parse the string form, but the printer will use the keyword form when applicable.
Differential Revision: https://reviews.llvm.org/D94575
River Riddle [Thu, 14 Jan 2021 19:34:55 +0000 (11:34 -0800)]
[mlir][ODS] Add new RangedTypesMatchWith operation predicate
This is a variant of TypesMatchWith that provides support for variadic arguments. This is necessary because ranges generally can't use the default operator== comparators for checking equality.
Differential Revision: https://reviews.llvm.org/D94574
Nikita Popov [Tue, 10 Nov 2020 19:43:46 +0000 (20:43 +0100)]
[BasicAA] Handle recursive queries more efficiently
An alias query currently works out roughly like this:
* Look up location pair in cache.
* Perform BasicAA logic (including cache lookup and insertion...)
* Perform a recursive query using BestAAResults.
* Look up location pair in cache (and thus do not recurse into BasicAA)
* Query all the other AA providers.
* Query all the other AA providers.
This is a lot of unnecessary work, all ultimately caused by the
BestAAResults query at the end of aliasCheck(). The reason we perform
it, is that aliasCheck() is getting called recursively, and we of
course want those recursive queries to also make use of other AA
providers, not just BasicAA. We can solve this by making the recursive
queries directly use BestAAResults (which will check both BasicAA
and other providers), rather than recursing into aliasCheck().
There are some tradeoffs:
* We can no longer pass through the precomputed underlying object
to aliasCheck(). This is not a major concern, because nowadays
getUnderlyingObject() is quite cheap.
* Results from other AA providers are no longer cached inside
BasicAA. The way this worked was already a bit iffy, in that a
result could be cached, but if it was MayAlias, we'd still end
up re-querying other providers anyway. If we want to cache
non-BasicAA results, we should do that in a more principled manner.
In any case, despite those tradeoffs, this works out to be a decent
compile-time improvment. I think it also simplifies the mental model
of how BasicAA works. It took me quite a while to fully understand
how these things interact.
Differential Revision: https://reviews.llvm.org/D90094
Mehdi Amini [Thu, 14 Jan 2021 19:28:49 +0000 (19:28 +0000)]
Add newline to terminate debug message (NFC)
Rob Suderman [Tue, 5 Jan 2021 22:26:48 +0000 (14:26 -0800)]
[MLIR][TOSA] First lowerings from Tosa to Linalg
Initial commit to add support for lowering from TOSA to Linalg. The focus is on
the essential infrastructure for these lowerings and integration with existing
passes.
Includes lowerings for a subset of operations including:
abs, add, sub, pow, and, or, xor, left shift, right shift, tanh
Lit tests are used to validate correctness.
Differential Revision: https://reviews.llvm.org/D94247
Erich Keane [Thu, 14 Jan 2021 19:00:49 +0000 (11:00 -0800)]
[NFC] Update test to not check for 'opaque' in the file name.
The intent presumably is to avoid generating 'opaque' in the IR, but the
header contains the filename. Thus, having the workspace in a directory
with opaque in it causes this test to fail.
This just adds a 'CHECK' line on target-triple, which is the last line
of the IR-header.
Valentin Clement [Thu, 14 Jan 2021 19:19:35 +0000 (14:19 -0500)]
[openacc] Rename generated file from ACC.cpp.inc to ACC.inc to match D92955
This patch rename the tablegen generated file ACC.cpp.inc to ACC.inc in order
to match what was done in D92955. This file is included in header file as well as .cpp
file so it make more sense.
Reviewed By: sameeranjoshi
Differential Revision: https://reviews.llvm.org/D93485
Mitch Phillips [Thu, 14 Jan 2021 01:28:10 +0000 (17:28 -0800)]
[GWP-ASan] Minor refactor of optional components.
In preparation for the inbuilt options parser, this is a minor refactor
of optional components including:
- Putting certain optional elements in the right header files,
according to their function and their dependencies.
- Cleaning up some old and mostly-dead code.
- Moving some functions into anonymous namespaces to prevent symbol
export.
Reviewed By: cryptoad, eugenis
Differential Revision: https://reviews.llvm.org/D94117
Shilei Tian [Thu, 14 Jan 2021 18:55:05 +0000 (13:55 -0500)]
[OpenMP] Dropped unnecessary define when compiling deviceRTLs for NVPTX
The comment said CUDA 9 header files use the `nv_weak` attribute which
`clang` is not yet prepared to handle. It's three years ago and now things have
changed. Based on my test, removing the definition doesn't have any problem on
my machine with CUDA 11.1 installed.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D94700
Hiroshi Yamauchi [Mon, 11 Jan 2021 19:02:37 +0000 (11:02 -0800)]
[X86] Add the FSRM feature (Fast Short Rep Mov) to Zen3.
Note -x86-use-fsrm-for-memcpy is still disabled by default and there's no
default behavior change.
Differential Revision: https://reviews.llvm.org/D94436
Zequan Wu [Thu, 14 Jan 2021 03:14:25 +0000 (19:14 -0800)]
[clang][MSVC] Fix missing MSInheritanceAttr in template specialization.
Fix PR48687.
Differential Revision: https://reviews.llvm.org/D94646
Shilei Tian [Thu, 14 Jan 2021 18:34:18 +0000 (13:34 -0500)]
[OpenMP] Drop the static library libomptarget-nvptx
For NVPTX target, OpenMP provides a static library `libomptarget-nvptx`
built by NVCC, and another bitcode `libomptarget-nvptx-sm_{$sm}.bc` generated by
Clang. When compiling an OpenMP program, the `.bc` file will be fed to `clang`
in the second run on the program that compiles the target part. Then the generated
PTX file will be fed to `ptxas` to generate the object file, and finally the driver
invokes `nvlink` to generate the binary, where the static library will be appened
to `nvlink`.
One question is, why do we need two libraries? The only difference is, the static
library contains `omp_data.cu` and the bitcode library doesn't. It's unclear why
they were implemented in this way, but per D94565, there is no issue if we also
include the file into the bitcode library. Therefore, we can safely drop the
static library.
This patch is about the change in OpenMP. The driver will be updated as well if
this patch is accepted.
Reviewed By: jdoerfert, JonChesterfield
Differential Revision: https://reviews.llvm.org/D94573
Arjun P [Thu, 14 Jan 2021 18:29:51 +0000 (19:29 +0100)]
Support emptiness checks for unbounded FlatAffineConstraints.
With this, we have complete support for emptiness checks. This also paves the way for future support to check if two FlatAffineConstraints are equal.
Reviewed By: ftynse
Differential Revision: https://reviews.llvm.org/D94272
Aaron En Ye Shi [Thu, 14 Jan 2021 17:52:27 +0000 (17:52 +0000)]
[HIP] Add signbit(long double) decl
An _MSC_VER version of signbit(long double) is required for MSVC headers.
Fixes: SWDEV-256409
Differential Revision: https://reviews.llvm.org/D93062
Joseph Tremoulet [Thu, 14 Jan 2021 18:17:02 +0000 (13:17 -0500)]
[LLDB] MinidumpParser: Prefer executable module even at higher address
When a program maps one of its own modules for reading, and then
crashes, breakpad can emit two entries for that module in the
ModuleList. We have logic to identify this case by checking permissions
on mapped memory regions and report just the module with an executable
region. As currently written, though, the check is asymmetric -- the
entry with the executable region must be the second one encountered for
the preference to kick in.
This change makes the logic symmetric, so that the first-encountered
module will similarly be preferred if it has an executable region but
the second-encountered module does not. This happens for example when
the module in question is the executable itself, which breakpad likes to
report first -- we need to ignore the other entry for that module when
we see it later, even though it may be mapped at a lower virtual
address.
Reviewed By: clayborg
Differential Revision: https://reviews.llvm.org/D94629
Jay Foad [Thu, 3 Sep 2020 18:22:33 +0000 (19:22 +0100)]
[SelectionDAG] Remove an early-out from computeKnownBits for smin/smax
Even if we know nothing about LHS, it can still be useful to know that
smax(LHS, RHS) >= RHS and smin(LHS, RHS) <= RHS.
Differential Revision: https://reviews.llvm.org/D87145
Jon Chesterfield [Thu, 14 Jan 2021 18:13:22 +0000 (18:13 +0000)]
[libomptarget][amdgpu] Fix kernel launch tracing to match previous behavior
Restore control of kernel launch tracing to be >= 1 as it was before
export LIBOMPTARGET_KERNEL_TRACE=1
Reviewed By: JonChesterfield
Differential Revision: https://reviews.llvm.org/D94695
Simon Pilgrim [Thu, 14 Jan 2021 17:51:06 +0000 (17:51 +0000)]
[X86][AVX] Adjust unsigned saturation downconvert negative test
D87145 was showing that this test (added in D45315) could always be constant folded (with suitable value tracking).
What we actually needed was smax(smin()) negative test coverage, the invert of negative_test2_smax_usat_trunc_wb_256_mem, so I've tweaked the test to provide that instead.
Arthur Eubanks [Thu, 14 Jan 2021 05:46:25 +0000 (21:46 -0800)]
[NewPM] Fix placement of LoopFlatten
https://reviews.llvm.org/D90402 was inconsistent with where it put
LoopFlatten between the two pass managers. It also missed adding it to
the non-O1 function simplification pipeline.
PR48738
Reviewed By: SjoerdMeijer
Differential Revision: https://reviews.llvm.org/D94650
Mircea Trofin [Wed, 13 Jan 2021 18:39:25 +0000 (10:39 -0800)]
[NFC] Disallow unused prefixes under MC/AArch64
Differential Revision: https://reviews.llvm.org/D94616
peter klausler [Wed, 13 Jan 2021 22:12:23 +0000 (14:12 -0800)]
[flang] Fix some module file issues exposed by Whizard
Generic type-bound interfaces for user-defined operators need to be formatted
as "OPERATOR(.op.)", not just ".op."
PRIVATE generics need to be marked as such.
Declaration ordering: when a generic interface shadows a
derived type of the same name, it needs to be emitted to the
module file at the point of definition of the derived type;
otherwise, the derived type's definition may appear after its
first use.
The module symbol for a module read from a module file needs
to be marked as coming from a module file before semantic
processing is performed on the contents of the module so that
any special handling for declarations in module files can be
properly activated.
IMPORT statements were sometimes missing for use-associated
symbols in surrounding scopes; fine-tune NeedImport().
Differential Revision: https://reviews.llvm.org/D94636
LLVM GN Syncbot [Thu, 14 Jan 2021 17:39:58 +0000 (17:39 +0000)]
[gn build] Port
2f395b7092bd
Utkarsh Saxena [Thu, 14 Jan 2021 17:38:42 +0000 (18:38 +0100)]
[clangd] Trivial: Documentation fix in ASTSignals.
Utkarsh Saxena [Sun, 10 Jan 2021 15:23:03 +0000 (16:23 +0100)]
[clangd] Make AST-based signals available to runWithPreamble.
Many useful signals can be derived from a valid AST which is regularly updated by
the ASTWorker. `runWithPreamble` does not have access to the ParsedAST
but it can be provided access to some signals derived from a (possibly
stale) AST.
Differential Revision: https://reviews.llvm.org/D94424
Mircea Trofin [Wed, 13 Jan 2021 19:02:10 +0000 (11:02 -0800)]
[NFC] Disallow unused prefixes under MC/ARM
Differential Revision: https://reviews.llvm.org/D94620
Andrzej Warzynski [Thu, 14 Jan 2021 16:39:16 +0000 (16:39 +0000)]
[flang][driver] Use __FLANG_VERISION__ in f18.cpp (nfc)
Just a minor improvement suggested in a post-commit review here:
https://reviews.llvm.org/D94422
Sam Elliott [Thu, 14 Jan 2021 16:44:34 +0000 (16:44 +0000)]
Revert "[RISCV] Legalize select when Zbt extension available"
We found issues with this patch in additional testing. Backing out while
we work on a fix.
This reverts commit
71ed4b6ce57d8843ef705af8f98305976a8f107a.
Sam McCall [Thu, 14 Jan 2021 16:19:39 +0000 (17:19 +0100)]
[clangd] Remove another option that was effectively always true. NFC
Simon Pilgrim [Thu, 14 Jan 2021 15:46:09 +0000 (15:46 +0000)]
[SystemZ] misched-cutoff tests can only be tested on non-NDEBUG (assertion) builds
Fixes clang-with-thin-lto-ubuntu buildbot after D94383/rGddd03842c347
Simon Pilgrim [Thu, 14 Jan 2021 15:39:55 +0000 (15:39 +0000)]
[Support] Remove redundant sign bit tests from KnownBits::getSignedMinValue/getSignedMaxValue
As noted by @foad on rG6895581fd2c1
Martin Storsjö [Thu, 14 Jan 2021 15:05:36 +0000 (17:05 +0200)]
Revert "[AArch64] Attempt to sink mul operands"
This reverts commit
dda60035e9f0769c8907cdf6561489e0435c2275.
This commit caused failures to compile some sources, erroring out
with "error in backend: Cannot select: t85: v2i32 = AArch64ISD::DUP t15",
see https://reviews.llvm.org/D91271 for the full reproduction case.
Paul C. Anagnostopoulos [Tue, 12 Jan 2021 17:55:57 +0000 (12:55 -0500)]
[TableGen] Enhance !cast<string> to handle bit and bits types.
Add a test for this.
Differential Revision: https://reviews.llvm.org/D94529
Simon Pilgrim [Thu, 14 Jan 2021 15:14:11 +0000 (15:14 +0000)]
[Support] Simplify KnownBits::sextInReg implementation.
As noted by @foad in rG9cf4f493a72f all we need to do is sextInReg both KnownBits One and Zero.
Lei Zhang [Thu, 14 Jan 2021 14:52:22 +0000 (09:52 -0500)]
[mlir][linalg] Add docstring support for named op spec
Depends on D94335
Reviewed By: nicolasvasilache, hanchung
Differential Revision: https://reviews.llvm.org/D94548
Anastasia Stulova [Thu, 14 Jan 2021 14:52:54 +0000 (14:52 +0000)]
[OpenCL] Improve online documentation.
Update UsersManual and OpenCLSupport pages to reflect
recent functionality i.e. SPIR-V generation,
C++ for OpenCL, OpenCL 3.0 development plans.
Tags: #clang
Differential Revision: https://reviews.llvm.org/D93942
Tim Keith [Thu, 14 Jan 2021 14:52:18 +0000 (06:52 -0800)]
[flang] Fix dangling pointer in LabelEnforce
`DirectiveStructureChecker` was passing in a pointer to a temporary
string for the `construct` argument to the constructor for `LabelEnforce`.
The `LabelEnforce` object had a lifetime longer than the temporary,
resulting in accessing a dangling pointer when emitting an error message
for `omp-parallell01.f90`.
The fix is to make the lifetime of the temporary as long as the lifetime
of the `LabelEnforce` object.
Differential Revision: https://reviews.llvm.org/D94618
Simon Pilgrim [Thu, 14 Jan 2021 14:50:09 +0000 (14:50 +0000)]
[Support] Ensure KnownBits::sextInReg can handle the src == dst sext-in-reg case.
This was resulting in assertions inside APInt::zext that we were extending to the same bitwidth.
Stefan Gränitz [Thu, 14 Jan 2021 14:40:42 +0000 (15:40 +0100)]
[docs] Update DebuggingJITedCode page after fix in LLDB
Generalize the documentation to include both, GDB and LLDB. Add a link to the interface
definition. Make a note on MCJIT's restriction to ELF. Mention the regression and bugfix
in LLDB as well as the jit-loader setting for macOS. Update the command line session to
use LLDB instead of GDB.
Reviewed By: lhames
Differential Revision: https://reviews.llvm.org/D90789
Simon Pilgrim [Thu, 14 Jan 2021 14:18:55 +0000 (14:18 +0000)]
[Support] Add KnownBits::sextInReg exhaustive tests
Requested by @foad in rG9cf4f493a72f
Jay Foad [Wed, 13 Jan 2021 13:51:09 +0000 (13:51 +0000)]
[Support] Simplify KnownBits::icmp helpers. NFC.
Remove some special cases that aren't really any simpler than the
general case.
Differential Revision: https://reviews.llvm.org/D94595
Jay Foad [Wed, 13 Jan 2021 11:25:35 +0000 (11:25 +0000)]
[Analysis,CodeGen] Make use of KnownBits::makeConstant. NFC.
Differential Revision: https://reviews.llvm.org/D94588
Jay Foad [Wed, 13 Jan 2021 10:57:20 +0000 (10:57 +0000)]
[SelectionDAG] Make use of KnownBits::commonBits. NFC.
Differential Revision: https://reviews.llvm.org/D94587
Florian Hahn [Thu, 14 Jan 2021 12:55:17 +0000 (12:55 +0000)]
[InferFunctionAttrs] Improve CHECK variable names (NFC).
Andrzej Warzynski [Mon, 11 Jan 2021 16:16:29 +0000 (16:16 +0000)]
[flang][driver] Unify f18_version.h.in and Version.inc.in
Flang has two CMake configurable header files that define compiler
version numbers:
* f18_version.h.in - only used in f18.cpp (uses version numbers from
LLVM's macro definitions)
* Version.inc.in - not currently used (uses version numbers hard-coded
in Flang's top CMake script)
Currently only f18_version.h.in provides version numbers consistent with
other subprojects in llvm-project. However, its location and name are
inconsistent with e.g. Clang. This patch merges the two headers
together:
* hard-coded version numbers in Flang's top CMake script are deleted
* Version.inc.in is updated to provide string versions of version
numbers (required by f18.cpp)
* f18_version.h.in is deleted as it's no longer needed
Differential Revision: https://reviews.llvm.org/D94422
Mikhail Maltsev [Thu, 14 Jan 2021 13:50:16 +0000 (13:50 +0000)]
[clang-tidy] Use DenseSet<SourceLocation> in UpgradeDurationConversionsCheck, NFCI
This change replaces `unordered_set<unsigned>` (which used to store
internal representation of `SourceLocation`-s) with
`DenseSet<SourceLocation>` (which stores `SourceLocation`-s directly).
Reviewed By: aaron.ballman, njames93
Differential Revision: https://reviews.llvm.org/D94601
Alexandre Ganea [Thu, 14 Jan 2021 13:35:38 +0000 (08:35 -0500)]
Revert "Fix llvm::Optional build breaks in MSVC using std::is_trivially_copyable"
This reverts commit
854f0984f0b7ab9a9a541a4bcda7ea173e4113d3.
This breaks compilation with clang-cl on Windows, while in a MSVC 16.8 cmd.exe.
This also breaks PPC: http://lab.llvm.org:8011/#/builders/93/builds/1435
And: https://reviews.llvm.org/D93510#2497737
Jan Svoboda [Tue, 12 Jan 2021 11:35:50 +0000 (12:35 +0100)]
[clang][cli] Port more CodeGenOptions to marshalling infrastructure
Leveraging the recently added TableGen constructs (ShouldParseIf and MarshallingInfoStringInt) to shift from manual command line parsing to automatic TableGen-driver marshalling.
Reviewed By: dexonsmith
Differential Revision: https://reviews.llvm.org/D94488
Jan Svoboda [Thu, 14 Jan 2021 12:07:52 +0000 (13:07 +0100)]
[clang][cli] NFC: Remove SSPBufferSize assignment
This should've been part of D84669, but got overlooked. Removing the assignment is NFC, as it's also done by the marshalling infrastructure for the stack_protector_buffer_size option.
Reviewed By: dexonsmith in D94488
Nigel Perks [Thu, 14 Jan 2021 12:13:48 +0000 (12:13 +0000)]
Change XCore code owner.
Discussion: https://lists.llvm.org/pipermail/llvm-dev/2021-January/147603.html
Aleksandr Platonov [Thu, 14 Jan 2021 08:35:38 +0000 (11:35 +0300)]
[clangd] Add main file macros into the main-file index.
This patch is a try to fix `WorkspaceSymbols.Macros` test after D93796.
If a macro definition is in the preamble section, then it appears to be in the preamble (static) index and not in the main-file (dynamic) index.
Thus, a such macro could not be found at a symbol search according to the logic that we skip symbols from the static index if the location of these symbols is inside the dynamic index files.
To fix this behavior this patch adds main file macros into the main-file (dynamic) index.
Reviewed By: sammccall
Differential Revision: https://reviews.llvm.org/D94477
Simon Pilgrim [Thu, 14 Jan 2021 11:52:29 +0000 (11:52 +0000)]
[DAG] visitVECTOR_SHUFFLE - MergeInnerShuffle - reset shuffle ops and reorder early-out and second op matching. NFCI.
I'm hoping to reuse MergeInnerShuffle in some other folds - so ensure the candidate ops/mask are reset at the start of each run.
Also, move the second op matching before bailing to make it simpler to try to match other things afterward.
Pavel Labath [Thu, 14 Jan 2021 10:53:53 +0000 (11:53 +0100)]
[lldb/test] Ensure launched processes are ready to be attached
Linux systems can be configured (and most of them are configured that
way) to disable attaching to unrelated processes, /unless/ those
processes explicitly allow that.
Our test inferiors do that by explicitly calling prctl(PR_SET_PTRACER,
PR_SET_PTRACER_ANY) (a.k.a., lldb_enable_attach). This requires
additional synchronization to ensure that the test does not attempt
attach before that statement is executed.
This is working fine (albeit cumbersome) for most tests but
TestGdbRemoteAttachWait is special in that it wants to start the
inferior _after_ issuing the attach request. This means that the usual
synchronization method does not work.
This patch introduces a different solution -- enable attaching in the
test harness, before the process is launched. Besides fixing this
problem, this is also better because it avoids the need to add special
code to each attach test (which is a common error).
One gotcha here is that it won't work for remote test suites, as we
don't control launching there. However, we could add a similar option to
lldb-platform, or require that lldb-platform itself is started with
attaching enabled. At that point we could delete all lldb_enable_attach
logic.
Simon Pilgrim [Thu, 14 Jan 2021 11:05:04 +0000 (11:05 +0000)]
[X86] Improve sum-of-reductions v4f32 test coverage
Ensure that the v4f32 reductions use a -0.0f start value and add fast-math test variant.
Simon Pilgrim [Wed, 13 Jan 2021 18:00:25 +0000 (18:00 +0000)]
[DAG] visitVECTOR_SHUFFLE - pull out shuffle merging code into lambda helper. NFCI.
Make it easier to reuse in a future patch.
Mikhail Maltsev [Thu, 14 Jan 2021 10:56:53 +0000 (10:56 +0000)]
[clang] Use SourceLocations in unions [NFCI]
Currently, there are many instances where `SourceLocation` objects are
converted to raw representation to be stored in structs that are
used as fields of tagged unions.
This is done to make the corresponding structs trivial.
Triviality allows avoiding undefined behavior when implicitly changing
the active member of the union.
However, in most cases, we can explicitly construct an active member
using placement new. This patch adds the required active member
selections and replaces `SourceLocation`-s represented as
`unsigned int` with proper `SourceLocation`-s.
One notable exception is `DeclarationNameLoc`: the objects of this class
are often not properly initialized (so the code currently relies on
its default constructor which uses memset). This class will be fixed
in a separate patch.
Reviewed By: dblaikie
Differential Revision: https://reviews.llvm.org/D94237
Bjorn Pettersson [Mon, 28 Dec 2020 13:28:55 +0000 (14:28 +0100)]
[SLP] Don't vectorize stores of non-packed types (like i1, i2)
In the spirit of commit
fc783e91e0c0696e (llvm-svn: 248943) we
shouldn't vectorize stores of non-packed types (i.e. types that
has padding between consecutive variables in a scalar layout,
but being packed in a vector layout).
The problem was detected as a miscompile in a downstream test case.
Reviewed By: anton-afanasyev
Differential Revision: https://reviews.llvm.org/D94446