Currently, if clang-tblgen is run without a mode option, it defaults
to the first mode in its 'enum Action', which happens to be
-gen-clang-attr-classes. I think it makes more sense for it to behave
the same way as llvm-tblgen, i.e. print a diagnostic dump if it's not
given any more specific instructions.
I've also added the same -dump-json that llvm-tblgen supports. This
means any tblgen command line (whether llvm- or clang-) can be
mechanically turned into one that processes the same input into JSON.
Reviewers: nhaehnle
Reviewed By: nhaehnle
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D50771
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@340390 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This adds an option "-gen-clang-data-collectors" to the Clang TableGen
that is used to generate StmtDataCollectors.inc.
Reviewers: arphaman, teemperor!
Subscribers: mgorny, cfe-commits
Differential Revision: https://reviews.llvm.org/D37383
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@312634 91177308-0d34-0410-b5e6-96231b3b80d8
This is a recommit of r300539 that was reverted in r300543 due to test failures.
The original commit message is displayed below:
The new '#pragma clang attribute' directive can be used to apply attributes to
multiple declarations. An attribute must satisfy the following conditions to
be supported by the pragma:
- It must have a subject list that's defined in the TableGen file.
- It must be documented.
- It must not be late parsed.
- It must have a GNU/C++11 spelling.
Differential Revision: https://reviews.llvm.org/D30009
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300556 91177308-0d34-0410-b5e6-96231b3b80d8
Some tests fail on the Windows buildbots. I will have to investigate more.
This commit reverts r300539, r300540 and r300542.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300543 91177308-0d34-0410-b5e6-96231b3b80d8
The new '#pragma clang attribute' directive can be used to apply attributes to
multiple declarations. An attribute must satisfy the following conditions to
be supported by the pragma:
- It must have a subject list that's defined in the TableGen file.
- It must be documented.
- It must not be late parsed.
- It must have a GNU/C++11 spelling.
Differential Revision: https://reviews.llvm.org/D30009
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300539 91177308-0d34-0410-b5e6-96231b3b80d8
The core of the change is supposed to be NFC, however it also fixes
what I believe was an undefined behavior when calling:
va_start(ValueArgs, Desc);
with Desc being a StringRef.
Differential Revision: https://reviews.llvm.org/D25342
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@283671 91177308-0d34-0410-b5e6-96231b3b80d8
remark flags. For now I'm checking in a copy of the built documentation, but we
can replace this with a placeholder (as we do for the attributes reference
documentation) once we enable building this server-side.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@281192 91177308-0d34-0410-b5e6-96231b3b80d8
The patch is generated using this command:
$ tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \
-checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \
work/llvm/tools/clang
To reduce churn, not touching namespaces spanning less than 10 lines.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@240270 91177308-0d34-0410-b5e6-96231b3b80d8
Clean up the __has_attribute implementation without modifying its behavior.
Replaces the tablegen-driven AttrSpellings.inc, which lived in the lexing layer with AttrHasAttributeImpl.inc, which lives in the basic layer. Updates the preprocessor to call through to this new functionality which can take additional information into account (such as scopes and syntaxes).
Expose the ability for parts of the compiler to ask whether an attribute is supported for a given spelling (including scope), syntax, triple and language options.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@205181 91177308-0d34-0410-b5e6-96231b3b80d8
Replaces the tablegen-driven AttrSpellings.inc, which lived in the lexing layer with AttrHasAttributeImpl.inc, which lives in the basic layer. Updates the preprocessor to call through to this new functionality which can take additional information into account (such as scopes and syntaxes).
Expose the ability for parts of the compiler to ask whether an attribute is supported for a given spelling (including scope), syntax, triple and language options.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@204952 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds some very, very sparse initial documentation for some attributes. Additional effort from attribute authors is greatly appreciated.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@201515 91177308-0d34-0410-b5e6-96231b3b80d8
To declare or define reserved identifers is undefined behaviour in standard
C++. This needs to be addressed in compiler-rt before it can be used in LLVM.
See the list discussion for details.
This reverts commit r198858.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@198885 91177308-0d34-0410-b5e6-96231b3b80d8
important for thread safety attributes, which contain expressions that were
not being visited, and were thus invisible to various tools. There are now
Visit*Attr methods that can be overridden for every attribute.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@198224 91177308-0d34-0410-b5e6-96231b3b80d8
which we don't think can't have one, only allow it in the tiny number of
attributes which opts into this weird parse rule.
I've manually checked that the handlers for all these attributes can in fact
cope with an identifier as the argument. This is still somewhat terrible; we
should move more fully towards picking the parsing rules based on the
attribute, and make the Parse -> Sema interface more type-safe.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193295 91177308-0d34-0410-b5e6-96231b3b80d8
I have a patch that edits the file. Running clang-format first makes the patch
a lot easier to review.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188562 91177308-0d34-0410-b5e6-96231b3b80d8
The CMake build was still using it because I forgot to s/CLANG/LLVM/ in
the tablegen() call. The Makefile build is already using llvm-tblgen.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184192 91177308-0d34-0410-b5e6-96231b3b80d8
This change partly addresses a heinous problem we have with the
parsing of attribute arguments that are a lone identifier. Previously,
we would end up parsing the 'align' attribute of this as an expression
"(Align)":
template<unsigned Size, unsigned Align>
class my_aligned_storage
{
__attribute__((align((Align)))) char storage[Size];
};
while this would parse as a "parameter name" 'Align':
template<unsigned Size, unsigned Align>
class my_aligned_storage
{
__attribute__((align(Align))) char storage[Size];
};
The code that handles the alignment attribute would completely ignore
the parameter name, so the while the first of these would do what's
expected, the second would silently be equivalent to
template<unsigned Size, unsigned Align>
class my_aligned_storage
{
__attribute__((align)) char storage[Size];
};
i.e., use the maximal alignment rather than the specified alignment.
Address this by sniffing the "Args" provided in the TableGen
description of attributes. If the first argument is "obviously"
something that should be treated as an expression (rather than an
identifier to be matched later), parse it as an expression.
Fixes <rdar://problem/13700933>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180973 91177308-0d34-0410-b5e6-96231b3b80d8
This change partly addresses a heinous problem we have with the
parsing of attribute arguments that are a lone identifier. Previously,
we would end up parsing the 'align' attribute of this as an expression
"(Align)":
template<unsigned Size, unsigned Align>
class my_aligned_storage
{
__attribute__((align((Align)))) char storage[Size];
};
while this would parse as a "parameter name" 'Align':
template<unsigned Size, unsigned Align>
class my_aligned_storage
{
__attribute__((align(Align))) char storage[Size];
};
The code that handles the alignment attribute would completely ignore
the parameter name, so the while the first of these would do what's
expected, the second would silently be equivalent to
template<unsigned Size, unsigned Align>
class my_aligned_storage
{
__attribute__((align)) char storage[Size];
};
i.e., use the maximal alignment rather than the specified alignment.
Address this by sniffing the "Args" provided in the TableGen
description of attributes. If the first argument is "obviously"
something that should be treated as an expression (rather than an
identifier to be matched later), parse it as an expression.
Fixes <rdar://problem/13700933>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180970 91177308-0d34-0410-b5e6-96231b3b80d8
This change introduces a 'kind' attribute for the <Para> tag, that captures the
kind of the parent block command.
For example:
\todo Meow.
used to be just <Para>Meow.</Para>, but now it is
<Para kind="todo">Meow.</Para>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174216 91177308-0d34-0410-b5e6-96231b3b80d8
This reimplements r173850 with a better approach:
(1) use a TableGen-generated matcher instead of doing a linear search;
(2) avoid allocations for new strings by converting code points to string
iterals with TableGen.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173931 91177308-0d34-0410-b5e6-96231b3b80d8
Introduce a spelling index to Attr class, which is an index into the attribute spelling list of an attribute defined in Attr.td.
This index will determine the actual spelling used by an attribute, as it incorporates both the syntax and naming of the attribute.
When constructing an attribute AST node, the spelling index is computed based on attribute kind, scope (if it's a C++11 attribute), and
name, then passed to Attr that will use the index to print itself.
Thanks to Richard Smith for the idea and review.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173358 91177308-0d34-0410-b5e6-96231b3b80d8
Now we have a list of all commands. This is a good thing in itself, but it
also enables us to easily implement typo correction for command names.
With this change we have objects that contain information about each command,
so it makes sense to resolve command name just once during lexing (currently we
store command names as strings and do a linear search every time some property
value is needed). Thus comment token and AST nodes were changed to contain a
command ID -- index into a tables of builtin and registered commands. Unknown
commands are registered during parsing and thus are also uniformly assigned an
ID. Using an ID instead of a StringRef is also a nice memory optimization
since ID is a small integer that fits into a common bitfield in Comment class.
This change implies that to get any information about a command (even a command
name) we need a CommandTraits object to resolve the command ID to CommandInfo*.
Currently a fresh temporary CommandTraits object is created whenever it is
needed since it does not have any state. But with this change it has state --
new commands can be registered, so a CommandTraits object was added to
ASTContext.
Also, in libclang CXComment has to be expanded to include a CXTranslationUnit
so that all functions working on comment AST nodes can get a CommandTraits
object. This breaks binary compatibility of CXComment APIs.
Now clang_FullComment_getAsXML(CXTranslationUnit TU, CXComment CXC) doesn't
need TU parameter anymore, so it was removed. This is a source-incompatible
change for this C API.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163540 91177308-0d34-0410-b5e6-96231b3b80d8
very simple semantic analysis that just builds the AST; minor changes for lexer
to pick up source locations I didn't think about before.
Comments AST is modelled along the ideas of HTML AST: block and inline content.
* Block content is a paragraph or a command that has a paragraph as an argument
or verbatim command.
* Inline content is placed within some block. Inline content includes plain
text, inline commands and HTML as tag soup.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159790 91177308-0d34-0410-b5e6-96231b3b80d8
This submission improves Clang sema handling by using Clang tablegen
to generate common boilerplate code. As a start, it implements AttributeList
enumerator generation and case statements for AttributeList::getKind.
A new field "SemaHandler" is introduced in Attr.td and by default set to 1
as most of attributes in Attr.td have semantic checking in Sema. For a small
number of attributes that don't appear in Sema, the value is set to 0.
Also there are a small number of attributes that only appear in Sema but not
in Attr.td. Currently these attributes are still hardcoded in Sema AttributeList.
Reviewed by Delesley Hutchins.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152169 91177308-0d34-0410-b5e6-96231b3b80d8
Simon Tatham