| Commit message (Collapse) | Author | Age | Files | Lines |
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Summary:
Preivously we would only discard it if we failed to parse parameter lists.
If we do not consume the body, parser sees tokens inside directive. In
turn, this leads to spurious diagnostics and a crash in TokenBuffer, see
the added tests.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65517
llvm-svn: 367530
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Summary:
The cache recorded the wrong expansion location for all but the first
stringization. It seems uncommon to stringize the same macro argument
multiple times, so this cache doesn't seem that important.
Fixes PR39942
Reviewers: vsk, rsmith
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65428
llvm-svn: 367337
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We should re-emit `#pragma once` to ensure the preprocessor will
still honor it when running on minimized sources.
Differential Revision: https://reviews.llvm.org/D64945
llvm-svn: 366509
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This patch applies clang-tidy's bugprone-argument-comment tool
to LLVM, clang and lld source trees. Here is how I created this
patch:
$ git clone https://github.com/llvm/llvm-project.git
$ cd llvm-project
$ mkdir build
$ cd build
$ cmake -GNinja -DCMAKE_BUILD_TYPE=Debug \
-DLLVM_ENABLE_PROJECTS='clang;lld;clang-tools-extra' \
-DCMAKE_EXPORT_COMPILE_COMMANDS=On -DLLVM_ENABLE_LLD=On \
-DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ ../llvm
$ ninja
$ parallel clang-tidy -checks='-*,bugprone-argument-comment' \
-config='{CheckOptions: [{key: StrictMode, value: 1}]}' -fix \
::: ../llvm/lib/**/*.{cpp,h} ../clang/lib/**/*.{cpp,h} ../lld/**/*.{cpp,h}
llvm-svn: 366177
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llvm-svn: 365901
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single quotes are not digit separators after a valid character literal prefix
The single quote character can act as a c++ digit separator.
However, the minimizer shouldn't treat it as such when it's actually following
a valid character literal prefix, like L, U, u, or u8.
Differential Revision: https://reviews.llvm.org/D64525
llvm-svn: 365700
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llvm-svn: 365153
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llvm::partition_point. NFC
llvm-svn: 365006
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Summary:
Currently HeaderSearch only looks at SearchDir's passed into it, but in
addition to those paths headers can be relative to including file's directory.
This patch makes sure that is taken into account.
Reviewers: gribozavr
Subscribers: jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D63295
llvm-svn: 365005
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This commit adds a new builtin, __builtin_bit_cast(T, v), which performs a
bit_cast from a value v to a type T. This expression can be evaluated at
compile time under specific circumstances.
The compile time evaluation currently doesn't support bit-fields, but I'm
planning on fixing this in a follow up (some of the logic for figuring this out
is in CodeGen). I'm also planning follow-ups for supporting some more esoteric
types that the constexpr evaluator supports, as well as extending
__builtin_memcpy constexpr evaluation to use the same infrastructure.
rdar://44987528
Differential revision: https://reviews.llvm.org/D62825
llvm-svn: 364954
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necessary) leading whitespace.
Simplify unit test and extend to cover no_unique_address attribute.
llvm-svn: 364102
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Reviewers: ilya-biryukov, sammccall
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D62965
llvm-svn: 362731
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llvm-svn: 362463
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that might affect the dependency list for a compilation
This commit introduces a dependency directives source minimizer to clang
that minimizes header and source files to the minimum necessary preprocessor
directives for evaluating includes. It reduces the source down to #define, #include,
The source minimizer works by lexing the input with a custom fast lexer that recognizes
the preprocessor directives it cares about, and emitting those directives in the minimized source.
It ignores source code, comments, and normalizes whitespace. It gives up and fails if seems
any directives that it doesn't recognize as valid (e.g. #define 0).
In addition to the source minimizer this patch adds a
-print-dependency-directives-minimized-source CC1 option that allows you to invoke the minimizer
from clang directly.
Differential Revision: https://reviews.llvm.org/D55463
llvm-svn: 362459
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The source location builtins are implemented as keywords, but
__has_builtin should still report true for them.
This patch also fixes a test failure on systemz where the alignment
of string literals is 2 not 1.
llvm-svn: 361920
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found" error.
A filename can be remapped with a header map to point to a framework
header and we can find the corresponding framework without the header.
But if the original filename doesn't have a remapped framework name,
we'll fail to find its location and will dereference a null pointer
during diagnostics emission.
Fix by tracking remappings better and emit the note only if a framework
is found before any of the remappings.
rdar://problem/48883447
Reviewers: arphaman, erik.pilkington, jkorous
Reviewed By: arphaman
Subscribers: dexonsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D61707
llvm-svn: 361779
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Currently, a pragma AST node's recorded location starts at the
namespace token (such as `omp` in the case of OpenMP) after the
`#pragma` token, and the `#pragma` location isn't available. However,
the `#pragma` location can be useful when, for example, rewriting a
directive using Clang's Rewrite facility.
This patch makes `#pragma` locations available in any `PragmaHandler`
but it doesn't yet make use of them.
This patch also uses the new `struct PragmaIntroducer` to simplify
`Preprocessor::HandlePragmaDirective`. It doesn't do the same for
`PPCallbacks::PragmaDirective` because that changes the API documented
in `clang-tools-extra/docs/pp-trace.rst`, and I'm not sure about
backward compatibility guarantees there.
Reviewed By: ABataev, lebedev.ri, aaron.ballman
Differential Revision: https://reviews.llvm.org/D61643
llvm-svn: 361335
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Summary:
By adding a hook to consume all tokens produced by the preprocessor.
The intention of this change is to make it possible to consume the
expanded tokens without re-runnig the preprocessor with minimal changes
to the preprocessor and minimal performance penalty when preprocessing
without recording the tokens.
The added hook is very low-level and reconstructing the expanded token
stream requires more work in the client code, the actual algorithm to
collect the tokens using this hook can be found in the follow-up change.
Reviewers: rsmith
Reviewed By: rsmith
Subscribers: eraman, nemanjai, kbarton, jsji, riccibruno, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D59885
llvm-svn: 361007
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This relands commit rL360833 which caused issues on Win32
bots due to path handling/normalization differences. Now
this uses `sys::path::filename` which should handle
additional edge cases on Win32.
Original commit:
"[Clang][PP] Add the __FILE_NAME__ builtin macro"
This patch adds the __FILE_NAME__ macro that expands to the
last component of the path, similar to __FILE__ except with
a guarantee that only the last path component (without the
separator) will be rendered.
I intend to follow through with discussion of this with WG14
as a potential inclusion in the C standard or failing that,
try to discuss this with GCC developers since this extension
is desired by GCC and Clang users/developers alike.
Differential Revision: https://reviews.llvm.org/D61756
llvm-svn: 360938
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This reverts "r360833: [Clang][PP] Add the __FILE_NAME__ builtin macro."
The tests are failing on Windows bots, reverting the patchset until I can
work out why.
llvm-svn: 360842
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Attempt to fix Windows buildbots due to differences in
path handling (caused by r360833).
llvm-svn: 360839
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This patch adds the `__FILE_NAME__` macro that expands to the
last component of the path, similar to `__FILE__` except with
a guarantee that only the last path component (without the
separator) will be rendered.
I intend to follow through with discussion of this with WG14
as a potential inclusion in the C standard or failing that,
try to discuss this with GCC developers since this extension
is desired by GCC and Clang users/developers alike.
Differential Revision: https://reviews.llvm.org/D61756
llvm-svn: 360833
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If a header file was processed for the second time, we could end up with a
wrong conditional stack and skipped ranges:
In the particular example, if the header guard is evaluated the second time and
it is decided to skip the conditional block, the corresponding "#endif" is
never seen since the preamble does not include it and we end up in the
Tok.is(tok::eof) case with a wrong conditional stack.
Detect the circular inclusion, emit a diagnostic and stop processing the
inclusion.
llvm-svn: 360418
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This trips over a few other limitations, but in the interests of incremental development I'm starting here & I'll look at the issues with -verify and filesystem checks (the fact that the behavior depends on the existence of a 'foo' directory even though it shouldn't need it), etc.
Reviewers: rsmith
Differential Revision: https://reviews.llvm.org/D61656
llvm-svn: 360195
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* __VA_OPT__ is expanded if the *expanded* __VA_ARGS__ is non-empty,
not if the original argument contained no tokens.
* Placemarkers at the start and end of __VA_OPT__ are retained just
long enough to paste them with adjacent ## operators. We never paste
"across" a discarded placemarker.
llvm-svn: 359964
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is not used since it consumes all preprocessor directives until it returns
a real token. Using the specific Lexer (i.e. CurLexer->Lex) makes it
possible to stop skipping after an #include or #pragma hdrstop. Previously
the skipping code was only handling CurLexer, now all will be handled
correctly.
Fixes: llvm.org/PR41585
Differential Revision: https://reviews.llvm.org/D61217
llvm-svn: 359506
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Summary:
Include insertion in clangd was inserting absolute paths when the
include directory was an absolute path with a double dot. This patch makes sure
double dots are handled both with absolute and relative paths.
Reviewers: sammccall
Subscribers: ilya-biryukov, ioeric, jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60873
llvm-svn: 359078
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Reviewers: sammccall
Differential Revision: https://reviews.llvm.org/D60995
llvm-svn: 359075
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llvm-svn: 358713
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map being used for the module 'module.name'.
llvm-svn: 358632
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global module fragment.
We know that the declaration in question should have been introduced by
a '#include', so try to figure out which one and suggest it. Don't
suggest importing the global module fragment itself!
llvm-svn: 358631
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and the global and private module fragment.
For now, the private module fragment introducer is ignored, but use of
the global module fragment introducer should be properly enforced.
llvm-svn: 358353
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in the preprocessor.
llvm-svn: 358231
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internal lexing steps in the preprocessor.
It is not safe to use the preprocessor's token lookahead except when
operating on the final sequence of tokens that would be produced by
phase 4 of translation. Doing so corrupts the token lookahead cache used
by the parser. (See added testcase for an example.) Lookahead should
instead be viewed as a layer on top of the normal lexer.
Added assertions to catch any further incorrect uses of lookahead within
lexing actions.
llvm-svn: 358230
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llvm-svn: 357359
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FileManager constructs a VFS in its constructor if it isn't passed one,
and there's no way to reset it. Make that contract clear by returning a
reference from its accessor.
https://reviews.llvm.org/D59388
llvm-svn: 357038
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llvm-svn: 356987
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in the include path.
Instead of making the incorrect claim that the included file has an
absolute path, describe the actual problem: the including file was found
either by absolute path, or relative to such a file, or relative to the
primary source file.
llvm-svn: 356712
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"skipped header because it should be imported as a module" cases from
the "skipped header because of some other reason" cases.
llvm-svn: 356704
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Use the new kind for both angled header-name tokens and for
double-quoted header-name tokens.
This is in preparation for C++20's context-sensitive header-name token
formation rules.
llvm-svn: 356530
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tokens.
We now actually form an angled_string_literal token for a header name by
concatenation rather than just working out what its contents would be.
This substantially simplifies downstream processing and is necessary for
C++20 header unit imports.
llvm-svn: 356433
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the file.
NFC unless a skipped #include is found at the final permitted #include
level.
llvm-svn: 356432
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__pragma(execution_character_set(push, "UTF-8")) is used in
TraceLoggingProvider.h. This commit implements a no-op handler for
compatability, similar to how the flag -fexec_charset is handled.
Patch by Matt Gardner!
Differential Revision: https://reviews.llvm.org/D58530
llvm-svn: 356185
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Change MemoryBufferCache to InMemoryModuleCache, moving it from Basic to
Serialization. Another patch will start using it to manage module build
more explicitly, but this is split out because it's mostly mechanical.
Because of the move to Serialization we can no longer abuse the
Preprocessor to forward it to the ASTReader. Besides the rename and
file move, that means Preprocessor::Preprocessor has one fewer parameter
and ASTReader::ASTReader has one more.
llvm-svn: 355777
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llvm-svn: 355176
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Fixes PR40713, see there for the motivation for this.
Differential Revision: https://reviews.llvm.org/D58161
llvm-svn: 354009
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When a framework with the same name is available at multiple framework
search paths, we use the first matching location. If a framework at this
location doesn't have all the headers, it can be confusing for
developers because they see only an error `'Foo/Foo.h' file not found`,
can find the complete framework with required header, and don't know the
incomplete framework was used instead.
Add a note explaining a framework without required header was found.
Also mention framework directory path to make it easier to find the
incomplete framework.
rdar://problem/39246514
Reviewers: arphaman, erik.pilkington, jkorous
Reviewed By: jkorous
Subscribers: jkorous, dexonsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D56561
llvm-svn: 353231
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r352221 caused regressions in CUDA/HIP since device function may use _Float16 whereas host does not support it.
In this case host compilation should not diagnose usage of _Float16 in device functions or variables.
For now just do not diagnose _Float16 for CUDA/HIP. In the future we should have more precise check.
Differential Revision: https://reviews.llvm.org/D57369
llvm-svn: 352488
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Float16 support was disabled recently on many platforms, however that
commit still allowed literals of Float16 type to work. This commit
removes those based on the same logic as Float16 disable.
Change-Id: I72243048ae2db3dc47bd3d699843e3edf9c395ea
llvm-svn: 352229
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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