Summary:
This adds the family of `vshlq_n` and `vshrq_n` ACLE intrinsics, which
shift every lane of a vector left or right by a compile-time
immediate. They mostly work by expanding to the IR `shl`, `lshr` and
`ashr` operations, with their second operand being a vector splat of
the immediate.
There's a fiddly special case, though. ACLE specifies that the
immediate in `vshrq_n` can take values up to //and including// the bit
size of the vector lane. But LLVM IR thinks that shifting right by the
full size of the lane is UB, and feels free to replace the `lshr` with
an `undef` half way through the optimization pipeline. Hence, to keep
this legal in source code, I have to detect it at codegen time.
Logical (unsigned) right shifts by the element size are handled by
simply emitting the zero vector; arithmetic ones are converted into a
shift of one bit less, which will always give the same output.
In order to do that check, I also had to enhance the tablegen
MveEmitter so that it can cope with converting a builtin function's
operand into a bare integer to pass to a code-generating subfunction.
Previously the only bare integers it knew how to handle were flags
generated from within `arm_mve.td`.
Reviewers: dmgreen, miyuki, MarkMurrayARM, ostannard
Reviewed By: MarkMurrayARM
Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D71065
Summary:
Instead, emit a diagnostic and return an empty ASM node, as we do if the target
is missing.
Filter this diagnostic out in clangd, where it's not meaningful.
Fixes https://github.com/clangd/clangd/issues/222
Reviewers: kadircet
Subscribers: mgorny, ilya-biryukov, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D71189
Summary:
This patch adds intrinsics for the following MVE instructions:
* VCADD, VHCADD
* VCMUL
* VCMLA
Each of the above 3 groups has a corresponding new LLVM IR intrinsic.
Reviewers: simon_tatham, MarkMurrayARM, ostannard, dmgreen
Reviewed By: MarkMurrayARM
Subscribers: merge_guards_bot, kristof.beyls, hiraditya, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D71190
The AST for the constexpr.cl test contains address space conversion
nodes to cast through the implicit generic address space. These
caused the evaluator to reject the input as constexpr in C++ for
OpenCL mode, whereas the input was considered constexpr in plain C++
mode as the AST won't have address space cast nodes then.
Fixes PR44177.
Differential Revision: https://reviews.llvm.org/D71015
Array members are not yet handled. In addition, defaulted comparisons
can't yet find comparison operators by unqualified lookup (only by
member lookup and ADL). These issues will be fixed in follow-on changes.
Summary:
D30644 added OpenMP offloading to AArch64 targets, then D32035 changed the
frontend to throw an error when offloading is requested for an unsupported
target architecture. However the latter did not include AArch64 in the list
of supported architectures, causing the following unit tests to fail:
libomptarget :: api/omp_get_num_devices.c
libomptarget :: mapping/pr38704.c
libomptarget :: offloading/offloading_success.c
libomptarget :: offloading/offloading_success.cpp
Reviewers: pawosm01, gtbercea, jdoerfert, ABataev
Subscribers: kristof.beyls, guansong, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D70804
A trivially copyable type provides a trivial copy constructor and a trivial
copy assignment operator. This is enough for the runtime to memcpy the data
to the device. Additionally there must be no virtual functions or virtual
base classes and the destructor is guaranteed to be trivial, ie performs
no action.
The runtime does not require trivial default constructors because on alloc
the memory is undefined. Thus, weaken the warning to be only issued if the
mapped type is not trivially copyable.
Differential Revision: https://reviews.llvm.org/D71134
The NDK uses a separate set of libc++ headers in the sysroot. Any headers
in the installation directory are not going to work on Android, not least
because they use a different name for the inline namespace (std::__1 instead
of std::__ndk1).
This effectively makes it impossible to produce a single toolchain that is
capable of targeting both Android and another platform that expects libc++
headers to be installed in the installation directory, such as Mac.
In order to allow this scenario to work, stop looking for headers in the
install directory on Android.
Differential Revision: https://reviews.llvm.org/D71154
The validateOutputSize and validateInputSize need to check whether
AVX or AVX512 are enabled. But this can be affected by the
target attribute so we need to factor that in.
This patch copies some of the code from CodeGen to create an
appropriate feature map that we can pass to the function. Probably
need some refactoring here to share more code with Codegen. Is
there a good place to do that? Also need to support the cpu_specific
attribute as well.
Differential Revision: https://reviews.llvm.org/D68627
Summary:
This will eventually allow traversal of an AST while ignoring invisible
AST nodes. Currently it depends on the available enum values for
TraversalKinds. That can be extended to ignore all invisible nodes in
the future.
Reviewers: klimek, aaron.ballman
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61837
This commit sets the Self and Imp declarations for ObjC method declarations,
in addition to the definitions. It also fixes
a bunch of code in clang that had wrong assumptions about when getSelfDecl() would be set:
- CGDebugInfo::getObjCMethodName and AnalysisConsumer::getFunctionName would assume that it was
set for method declarations part of a protocol, which they never were,
and that self would be a Class type, which it isn't as it is id for a protocol.
Also use the Canonical Decl to index the set of Direct methods so that
when calls and implementations interleave, the same llvm::Function is
used and the same symbol name emitted.
Radar-Id: rdar://problem/57661767
Patch by: Pierre Habouzit
Differential Revision: https://reviews.llvm.org/D71091
When implementation of the block runtime is available, we should not
warn that block layout fields are uninitialized simply because they're
on the stack.
According to OpenMP 5.0, if clause can be used in for simd directive. If
condition in the if clause if false, the non-vectorized version of the
loop must be executed.
Summary:
When Sema encounters a ObjCMethodDecl definition it declares the implicit parameters for the ObjCMethodDecl.
When importing such a method with the ASTImporter we need to do the same for the imported method
otherwise we will crash when generating code (where CodeGen expects that this was called by Sema).
Note I had to implement Objective-C[++] support in Language.cpp as this is the first test for Objective-C and this
would otherwise just hit this 'not implemented' assert when running the unit test.
Reviewers: martong, a.sidorin, shafik
Reviewed By: martong
Subscribers: rnkovacs, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D71112
Summary: Python 3.8 introduces a SyntaxWarning about string comparisons with 'is'. This commit updates the string comparison in clang-format.py that is done with 'is not' to '!='. This should not break compatibility with older python versions (tested 3.4.9, 2.7.17, 2.7.5, 3.8.0).
Reviewers: MyDeveloperDay, klimek, llvm-commits, cfe-commits
Reviewed By: MyDeveloperDay, klimek
Patch By: pseyfert
Tags: #clang-format, #clang
Differential Revision: https://reviews.llvm.org/D70664
Summary:
The current clang-format.py does not handle trailing newlines at the end of a file correctly.
Trailing empty lines get removed except one.
As far as I understand this is because clang-format gets fed from stdin and writes to stdout when called from clang-format.py.
In a "normal" file (with no trailing empty lines) the string that gets passed to clang-format does not contain a trailing '\n' after the '\n'.join from python.
The clang-format binary does not add a trailing newline to input from stdin, but (if there are multiple trailing '\n', all except one get removed).
When reading back this means that we see in python from a "normal" file a string with no trailing '\n'. From a file with (potentially multiple) empty line(s) at the end, we get a string with one trailing '\n' back in python. In the former case all is fine, in the latter case split('\n') makes one empty line at the end of the file out of the clang-format output. Desired would be instead that the **file** ends with a newline, but not with an empty line.
For the case that a user specifies a range to format (and wants to keep trailing empty lines) I did **not** try to fix this by simply removing all trailing newlines from the clang-format output. Instead, I add a '\n' to the unformatted file content (i.e. newline-terminate what is passed to clang-format) and then strip off the last newline from the output (which itself is now for sure the newline termination of the clang-format output).
(Should this get approved, I'll need someone to help me land this.)
Reviewers: klimek, MyDeveloperDay
Reviewed By: MyDeveloperDay
Patch By: pseyfert
Subscribers: cfe-commits, llvm-commits
Tags: #clang-format, #clang
Differential Revision: https://reviews.llvm.org/D70864
update trailing newline treatment in clang-format.py
On ARM platforms, the compiler generates an additional line containing `-CXXRecordDecl which is not the intended line, but preceeds the intended match causing the test to fail.
This reverts commit 7f93cb6228.
The assertion at RecursiveASTVisitor.h:1169 fails when passed a TypeLocNode.
Not sure if the correct fix is to use getTypeLocClass or something else.
Summary:
First, call os.path.normpath on the filename argument. I passed in
./foo-asdf.cpp, and this meant that the script failed to find the
filename, and bad things happened.
Second, call os.path.abspath on binaries. CReduce runs the
interestingness test in a temp dir, so relative paths will not work.
Reviewers: akhuang
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D71098
Part of the C++20 concepts implementation effort.
- Associated constraints (requires clauses, currently) are now enforced when instantiating/specializing templates and when considering partial specializations and function overloads.
- Elaborated diagnostics give helpful insight as to why the constraints were not satisfied.
Phabricator: D41569
Re-commit, after fixing some memory bugs.
forming non-type template parameter values.
This reverts commit 93cc9dddd8,
which reverted commit 11d1052785.
We now always form `&x` when forming a pointer to a function rather than
trying to use function-to-pointer decay. This matches the behavior of
the old code in this case, but not the intent as described by the
comments.
This unbreaks the debuginfo-tests testsuite by replacing the assertion
with a default location. There are cleanups in helper functions that
don't have a valid source location such as block copy helpers and it's
not worth tracking each of them down.
rdar://57630879
even when there is no explicit synthesize statement.
This fixes a regression introduced in https://reviews.llvm.org/D68108
that could lead to missing debug locations in cleanup code in
synthesized Objective-C++ properties.
rdar://57630879
Differential Revision: https://reviews.llvm.org/D71084
Summary:
ASTImporter contained wrong or missing imports of SourceLocation
and SourceRange for some objects. At least a part of such errors
is fixed now.
Source location import fixes in namespace, enum, record,
class template specialization declarations and DeclRefExpr,
UnresolvedLookupExpr, UnresolvedMemberExpr, NestedNameSpecifierLoc.
Reviewers: martong, a.sidorin, shafik
Reviewed By: shafik
Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60499
Simon Tatham