Commit Graph

78641 Commits

Author SHA1 Message Date
Ilya Biryukov 6c0531222a [Syntax] Rename TokensTest to SyntaxTests. NFC
To be more consistent with conventions used in the codebase. The new
name will be a better fit when more bits of the syntax library land.

llvm-svn: 361264
2019-05-21 14:37:41 +00:00
Javed Absar 603a2bac05 [ARM][CMSE] Add commandline option and feature macro
Defines macro ARM_FEATURE_CMSE to 1 for v8-M targets and introduces
-mcmse option which for v8-M targets sets ARM_FEATURE_CMSE to 3.
A diagnostic is produced when the option is given on architectures
without support for Security Extensions.
Reviewed By: dmgreen, snidertm
Differential Revision: https://reviews.llvm.org/D59879

llvm-svn: 361261
2019-05-21 14:21:26 +00:00
Simon Pilgrim 45330fee4c [CodeGenModule] BlockByrefHelpers - add missing uninitialized variables to constructor. NFCI.
llvm-svn: 361242
2019-05-21 11:37:54 +00:00
Simon Pilgrim 823458f9b8 [CGBuiltin] dumpRecord - remove unused field offset. NFCI.
llvm-svn: 361238
2019-05-21 10:48:42 +00:00
Nikolai Kosjar 2eebf4d939 [libclang] visit c++14 lambda capture init expressions
Patch by Milian Wolff.

Differential Revision: https://reviews.llvm.org/D60672

llvm-svn: 361234
2019-05-21 09:21:35 +00:00
Nikolai Kosjar 295c19e948 [Preamble] Reuse preamble even if an unsaved file does not exist
When a preamble is created an unsaved file not existing on disk is
already part of PrecompiledPreamble::FilesInPreamble. However, when
checking whether the preamble can be re-used, a failed stat of such an
unsaved file invalidated the preamble, which led to pointless and time
consuming preamble regenerations on subsequent reparses.

Do not require anymore that unsaved files should exist on disk.

This avoids costly preamble invalidations depending on timing issues for
the cases where the file on disk might be removed just to be regenerated
a bit later.

It also allows an IDE to provide in-memory files that might not exist on
disk, e.g. because the build system hasn't generated those yet.

Differential Revision: https://reviews.llvm.org/D41005

llvm-svn: 361226
2019-05-21 07:26:59 +00:00
Nico Weber 4522e26696 Try to fix build with older gccs after r361152
Also merge the cmake change there to the gn build.

llvm-svn: 361209
2019-05-21 00:27:26 +00:00
Richard Smith f1b29723ce Give 'fixit-cxx0x.cpp' a more modern name.
llvm-svn: 361208
2019-05-20 23:37:18 +00:00
Leonard Chan 16beaae2a6 [Sema] Fix for build on some iOS programs.
Nullability attributes weren't being stripped for AttributedTypes that
were wrapped in a MacroQualifiedType. This fix adds a check for this
type and a test.

llvm-svn: 361205
2019-05-20 22:42:19 +00:00
Aaron Ballman 4aee1b5b0b Add more tests for AST JSON output; NFC.
This adds tests for dumping expressions in C. It also updates a comment to note an issue to be fixed with printing character literals discovered as part of this testing.

llvm-svn: 361193
2019-05-20 20:01:45 +00:00
Craig Topper 31cc510980 [X86] Check the alignment argument for the masked.load/store for the _mm_mask_store_ss/sd and _mm_mask(z)_load_ss/sd intrinsics.
llvm-svn: 361187
2019-05-20 18:48:31 +00:00
Chris Bieneman c1ad143f95 [CMake] Update DistributionExample for mono repo
This just updates the DistributionExamples from my 2016 Dev Meeting talk to work more seamlessly with the monorepo.

llvm-svn: 361184
2019-05-20 18:10:20 +00:00
Richard Smith e958506039 Rearrange and clean up how we disambiguate lambda-introducers from ObjC
message sends, designators, and attributes.

Instead of having the tentative parsing phase sometimes return an
indicator to say what diagnostic to produce if parsing fails and
sometimes ask the caller to run it again, consistently ask the caller to
try parsing again if tentative parsing would fail or is otherwise unable
to completely parse the lambda-introducer without producing an
irreversible semantic effect.

Mostly NFC, but we should recover marginally better in some error cases
(avoiding duplicate diagnostics).

llvm-svn: 361182
2019-05-20 18:01:54 +00:00
Aaron Ballman 4d05a974b7 Dump macro expansion information as needed when outputting the AST to JSON.
llvm-svn: 361172
2019-05-20 16:46:44 +00:00
Dmitri Gribenko 76e3a04951 Renamed `apply` to `select` to avoid ADL conflict with `std::apply`
Summary:
`std::apply` in C++14 and above is defined with two unrestricted arguments, and
it wins overload resolution in this case.

Reviewers: ilya-biryukov

Subscribers: cfe-commits, ymandel

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62150

llvm-svn: 361170
2019-05-20 16:30:49 +00:00
Craig Topper af7a188453 [Intrinsics] Merge lround.i32 and lround.i64 into a single intrinsic with overloaded result type. Make result type for llvm.llround overloaded instead of fixing to i64
We shouldn't really make assumptions about possible sizes for long and long long. And longer term we should probably support vectorizing these intrinsics. By making the result types not fixed we can support vectors as well.

Differential Revision: https://reviews.llvm.org/D62026

llvm-svn: 361169
2019-05-20 16:27:09 +00:00
Paul Robinson d901936957 Fix test not to use UNSUPPORTED as a FileCheck prefix.
It was not causing a problem but it's not good practice.

llvm-svn: 361161
2019-05-20 14:57:18 +00:00
Yitzhak Mandelbaum ef29c6a63e [LibTooling] Fix build break in test after r361152.
r361152 broke gcc builds.

llvm-svn: 361160
2019-05-20 14:44:40 +00:00
Yitzhak Mandelbaum 27872b8d55 [LibTooling] Add RangeSelector library for defining source ranges based on bound AST nodes.
Summary:

The RangeSelector library defines a combinator language for specifying source
ranges based on bound ids for AST nodes.  The combinator approach follows the
design of the AST matchers.  The RangeSelectors defined here will be used in
both RewriteRule, for specifying source affected by edit, and in Stencil for
specifying source to use constructively in a replacement.

Reviewers: ilya-biryukov

Subscribers: mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61774

llvm-svn: 361152
2019-05-20 13:15:14 +00:00
Ilya Biryukov ddd5d5dbc8 [Syntax] Introduce TokenBuffer, start clangToolingSyntax library
Summary:
TokenBuffer stores the list of tokens for a file obtained after
preprocessing. This is a base building block for syntax trees,
see [1] for the full proposal on syntax trees.

This commits also starts a new sub-library of ClangTooling, which
would be the home for the syntax trees and syntax-tree-based refactoring
utilities.

[1]: https://lists.llvm.org/pipermail/cfe-dev/2019-February/061414.html

Reviewers: gribozavr, sammccall

Reviewed By: sammccall

Subscribers: mgrang, riccibruno, Eugene.Zelenko, mgorny, jdoerfert, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59887

llvm-svn: 361148
2019-05-20 13:00:42 +00:00
Mikael Holmen 3b6b2e331f Fix compilation warning about unused variable [NFC]
Without the fix at least clang 3.6 complains with

../tools/clang/lib/AST/ExprConstant.cpp:90:24: error: unused variable 'TI' [-Werror,-Wunused-variable]
    if (TypeInfoLValue TI = B.dyn_cast<TypeInfoLValue>())
                       ^
1 error generated.

llvm-svn: 361145
2019-05-20 11:38:33 +00:00
Adam Balogh 33160c4424 [Analyzer] Refactor begin and end symbol creation
This patch refactors begin and end symbol creation by moving symbol
conjuration into the `create...` functions. This way the functions'
responsibilities are clearer and makes possible to add more functions
handling these symbols (e.g. functions for handling the container's
size) without code multiplication.

Differential Revision: https://reviews.llvm.org/D61136

llvm-svn: 361141
2019-05-20 11:04:27 +00:00
Gabor Marton 1d51e3e6ee [ASTImporter] Enable disabled but passing tests
Reviewers: a_sidorin, a.sidorin, shafik

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62066

llvm-svn: 361139
2019-05-20 10:38:14 +00:00
Nicolas Lesser e47ae69fa7 Fix buildbot: Use correct Consume*() for braces.
llvm-svn: 361120
2019-05-19 15:30:00 +00:00
Nicolas Lesser f53d172710 Added a better diagnostic when using the delete operator with lambdas
Summary:
This adds a new error for missing parentheses around lambdas in delete operators.

```
int main() {
  delete []() { return new int(); }();
}
```

This will result in:

```
test.cpp:2:3: error: '[]' after delete interpreted as 'delete[]'
  delete []() { return new int(); }();
  ^~~~~~~~~
test.cpp:2:9: note: add parentheses around the lambda
  delete []() { return new int(); }();
        ^
        (                          )
```

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: riccibruno, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D36357

llvm-svn: 361119
2019-05-19 15:07:58 +00:00
Stephen Kelly ad3314b146 Add a Visit overload for DynTypedNode to ASTNodeTraverser
Reviewers: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61834

llvm-svn: 361117
2019-05-19 13:03:48 +00:00
Dylan McKay 83338b1059 [AVR] Automatically link CRT and libgcc from the system avr-gcc
Summary:
This patch modifies the AVR toolchain so that if avr-gcc and avr-libc
are detected during compilation, the CRT, libgcc, libm, and libc anre
linked.

This matches avr-gcc's default behaviour, and the expected behaviour of
all C compilers - including the C runtime.

avr-gcc also needs a -mmcu specified in order to link runtime libraries.

The difference betwen this patch and avr-gcc is that this patch will
warn users whenever they compile without a runtime, as opposed to GCC,
which silently trims the runtime libs from the linker arguments when no
-mmcu is specified.

Reviewers: aaron.ballman, kparzysz, asb, hfinkel, brucehoult, TimNN

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D54334

llvm-svn: 361116
2019-05-19 09:54:14 +00:00
Craig Topper 3d7ecc4618 [X86] Remove semicolons at the end of intrinsics implemented as macros so they can be used as arguments to other intrinsics.
Also fix one intrinsic that was using variable names without underscores.

Fixes PR41932

llvm-svn: 361109
2019-05-19 01:01:52 +00:00
Kristof Umann f40c18b628 [analyzer] PR41753: Include complex integer types in NonLoc::isCompoundType
https://bugs.llvm.org/show_bug.cgi?id=41753

Differential Revision: https://reviews.llvm.org/D61570

llvm-svn: 361099
2019-05-18 12:34:08 +00:00
Simon Pilgrim 30aa42e145 ScalarExprEmitter::EmitCompoundAssign - fix uninitialized variable warning. NFCI.
llvm-svn: 361098
2019-05-18 12:17:15 +00:00
Simon Pilgrim 3e95568dcf MIGChecker - assert we have a non-null LocationContext. NFCI.
Fixes scan-build warning.

llvm-svn: 361097
2019-05-18 11:42:19 +00:00
Simon Pilgrim 4c146ab8c4 ASTNodeImporter - fix uninitialized variable warnings. NFCI.
llvm-svn: 361096
2019-05-18 11:33:27 +00:00
Richard Smith a933030f84 [c++20] P1327R1: Support for typeid applied to objects of polymorphic
class type in constant evaluation.

This reinstates r360977, reverted in r360987, now that its rerequisite
patch is reinstated and fixed.

llvm-svn: 361067
2019-05-17 19:19:28 +00:00
Gheorghe-Teodor Bercea 144291e14c [OpenMP][bugfix] Add missing math functions variants for log and abs.
Summary: When including the random header in C++, some of the math functions it relies on are not present in the CUDA headers. We include this variants in this case.

Reviewers: jdoerfert, hfinkel, tra, caomhin

Reviewed By: tra

Subscribers: efriedma, guansong, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62046

llvm-svn: 361066
2019-05-17 19:15:53 +00:00
Aaron Ballman bbfd8d1885 Add more tests for AST JSON output; NFC.
This adds tests for dumping records and statements.

llvm-svn: 361065
2019-05-17 19:14:01 +00:00
Nico Weber e78ac9cc72 Revert r361033 "Add a Visit overload for DynTypedNode to ASTNodeTraverser"
It fails to build on some bots.

Also revert follow-up r361055.

llvm-svn: 361059
2019-05-17 18:31:24 +00:00
Nico Weber 762b3ef078 Attempt to fix test on Windows after r360998
llvm-svn: 361054
2019-05-17 17:33:54 +00:00
Dmitri Gribenko 04323c24a1 Added an assertion to constant evaluation enty points that prohibits dependent expressions
Summary:
Constant evaluator does not work on value-dependent or type-dependent
expressions.

Also fixed bugs uncovered by these assertions.

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61522

llvm-svn: 361050
2019-05-17 17:16:53 +00:00
Kristof Umann 83cc1b35d1 [analyzer] Remove the default value arg from getChecker*Option
Since D57922, the config table contains every checker option, and it's default
value, so having it as an argument for getChecker*Option is redundant.

By the time any of the getChecker*Option function is called, we verified the
value in CheckerRegistry (after D57860), so we can confidently assert here, as
any irregularities detected at this point must be a programmer error. However,
in compatibility mode, verification won't happen, so the default value must be
restored.

This implies something else, other than adding removing one more potential point
of failure -- debug.ConfigDumper will always contain valid values for
checker/package options!

Differential Revision: https://reviews.llvm.org/D59195

llvm-svn: 361042
2019-05-17 15:52:13 +00:00
Yitzhak Mandelbaum 8369a9beb7 [LibTooling] Add support to Transformer for composing rules as an ordered choice.
This revision updates `RewriteRule` to support multiple subrules that are
interpreted as an ordered-choice (apply the first one that matches). With this
feature, users can write the rules that appear later in the list of subrules
knowing that previous rules' patterns *have not matched*, freeing them from
reasoning about those cases in the current pattern.

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61335

llvm-svn: 361037
2019-05-17 14:23:33 +00:00
Stephen Kelly c8dcbed6e4 Extract ASTDumper to a header file
Summary:
This class has member APIs which are useful to clients.  Make it
possible to use those APIs without adding them to dump() member
functions.  Doing so does not scale.  The optional arguments to dump()
should be designed to be useful in a debugging context.

Reviewers: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61835

llvm-svn: 361034
2019-05-17 13:59:15 +00:00
Stephen Kelly 0855896c68 Add a Visit overload for DynTypedNode to ASTNodeTraverser
Reviewers: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61834

llvm-svn: 361033
2019-05-17 13:55:28 +00:00
Simon Pilgrim 10869e2962 Fix Wdocumentation warnings. NFCI.
llvm-svn: 361032
2019-05-17 13:42:16 +00:00
Kristof Umann 85cf76e783 [analyzer] Validate checker option names and values
Validate whether the option exists, and also whether the supplied value is of
the correct type. With this patch, invoking the analyzer should be, at least
in the frontend mode, a lot safer.

Differential Revision: https://reviews.llvm.org/D57860

llvm-svn: 361011
2019-05-17 09:51:59 +00:00
Ilya Biryukov 929af67361 [Lex] Allow to consume tokens while preprocessing
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
2019-05-17 09:32:05 +00:00
Kristof Umann 30b2307da8 [analyzer] Insert checker options into AnalyzerOption::ConfigTable
The more entries we have in AnalyzerOptions::ConfigTable, the more helpful
debug.ConfigDumper is. With this patch, I'm pretty confident that it'll now emit
the entire state of the analyzer, minus the frontend flags.

It would be nice to reserve the config table specifically to checker options
only, as storing the regular analyzer configs is kinda redundant.

Differential Revision: https://reviews.llvm.org/D57922

llvm-svn: 361006
2019-05-17 09:29:44 +00:00
Sven van Haastregt 151d4f88dc [NFC] Fix line endings in OpenCL tests
llvm-svn: 361004
2019-05-17 09:25:38 +00:00
Richard Smith eb4cbf885c Suppress false-positive GCC -Wreturn-type warning.
llvm-svn: 360999
2019-05-17 08:06:49 +00:00
Richard Smith 51ce8444f0 Fix crash if, during evaluation of __builtin_object_size, we try to load
through an invalid base.

llvm-svn: 360998
2019-05-17 08:01:34 +00:00
Richard Smith 77483765eb Fix alignment check to check the alignment of the intended type.
llvm-svn: 360997
2019-05-17 07:28:41 +00:00
Sam McCall aee9448939 [ClangFormat] Editor integrations inherit default style from clang-format binary
Summary:
This allows downstream customizations to the default style to work without
needing to also modify the editor integrations.

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D49719

llvm-svn: 360996
2019-05-17 07:22:55 +00:00
Richard Smith ee0ce302c5 Refactor constant evaluation of typeid(T) to track a symbolic type_info
object rather than tracking the originating expression.

This is groundwork for supporting polymorphic typeid expressions. (Note
that this somewhat regresses our support for DR1968, but it turns out
that that never actually worked anyway, at least in non-trivial cases.)

This reinstates r360974, reverted in r360988, with a fix for a
static_assert failure on 32-bit builds: force Type base class to have
8-byte alignment like the rest of Clang's AST nodes.

llvm-svn: 360995
2019-05-17 07:06:46 +00:00
Kristina Brooks 5652063eff [Clang][Docs] Document __FILE_NAME__. NFC
Document the `__FILE_NAME__` preprocessor extension.

llvm-svn: 360994
2019-05-17 06:46:12 +00:00
Petr Hosek b7804ef3a7 [Analysis] Only run plugins tests if plugins are actually enabled
When plugins aren't enabled, don't try to run plugins tests. Don't
enable plugins unconditionally based on the platform, instead check
if LLVM shared library is actually being built which may not be the
case for every host configuration, even if the host itself supports
plugins.

This addresses test failures introduced by r360891/D59464.

Differential Revision: https://reviews.llvm.org/D62050

llvm-svn: 360991
2019-05-17 06:07:37 +00:00
Chris Bieneman a971003e46 Revert Refactor constant evaluation of typeid(T) to track a symbolic type_info object rather than tracking the originating expression.
This reverts r360974 (git commit 7ee4307bd4)

llvm-svn: 360988
2019-05-17 05:46:03 +00:00
Chris Bieneman a5a4124c49 Revert [c++20] P1327R1: Support for typeid applied to objects of polymorphic class type in constant evaluation.
This reverts r360977 (git commit f51dc8d2f9)

llvm-svn: 360987
2019-05-17 05:45:57 +00:00
Chris Bieneman 876e39937e Re-land: Add Clang shared library with C++ exports
Summary:
This patch adds a libClang_shared library on *nix systems which exports the entire C++ API. In order to support this on Windows we should really refactor llvm-shlib and share code between the two.

This also uses a slightly different method for generating the shared library, which I should back-port to llvm-shlib. Instead of linking the static archives and passing linker flags to force loading the whole libraries, this patch creates object libraries for every library (which has no cost in the build system), and link the object libraries.

llvm-svn: 360985
2019-05-17 04:20:01 +00:00
Ben Dunbobbin 1d16515fb4 [ELF] Implement Dependent Libraries Feature
This patch implements a limited form of autolinking primarily designed to allow
either the --dependent-library compiler option, or "comment lib" pragmas (
https://docs.microsoft.com/en-us/cpp/preprocessor/comment-c-cpp?view=vs-2017) in
C/C++ e.g. #pragma comment(lib, "foo"), to cause an ELF linker to automatically
add the specified library to the link when processing the input file generated
by the compiler.

Currently this extension is unique to LLVM and LLD. However, care has been taken
to design this feature so that it could be supported by other ELF linkers.

The design goals were to provide:

- A simple linking model for developers to reason about.
- The ability to to override autolinking from the linker command line.
- Source code compatibility, where possible, with "comment lib" pragmas in other
  environments (MSVC in particular).

Dependent library support is implemented differently for ELF platforms than on
the other platforms. Primarily this difference is that on ELF we pass the
dependent library specifiers directly to the linker without manipulating them.
This is in contrast to other platforms where they are mapped to a specific
linker option by the compiler. This difference is a result of the greater
variety of ELF linkers and the fact that ELF linkers tend to handle libraries in
a more complicated fashion than on other platforms. This forces us to defer
handling the specifiers to the linker.

In order to achieve a level of source code compatibility with other platforms
we have restricted this feature to work with libraries that meet the following
"reasonable" requirements:

1. There are no competing defined symbols in a given set of libraries, or
   if they exist, the program owner doesn't care which is linked to their
   program.
2. There may be circular dependencies between libraries.

The binary representation is a mergeable string section (SHF_MERGE,
SHF_STRINGS), called .deplibs, with custom type SHT_LLVM_DEPENDENT_LIBRARIES
(0x6fff4c04). The compiler forms this section by concatenating the arguments of
the "comment lib" pragmas and --dependent-library options in the order they are
encountered. Partial (-r, -Ur) links are handled by concatenating .deplibs
sections with the normal mergeable string section rules. As an example, #pragma
comment(lib, "foo") would result in:

.section ".deplibs","MS",@llvm_dependent_libraries,1
         .asciz "foo"

For LTO, equivalent information to the contents of a the .deplibs section can be
retrieved by the LLD for bitcode input files.

LLD processes the dependent library specifiers in the following way:

1. Dependent libraries which are found from the specifiers in .deplibs sections
   of relocatable object files are added when the linker decides to include that
   file (which could itself be in a library) in the link. Dependent libraries
   behave as if they were appended to the command line after all other options. As
   a consequence the set of dependent libraries are searched last to resolve
   symbols.
2. It is an error if a file cannot be found for a given specifier.
3. Any command line options in effect at the end of the command line parsing apply
   to the dependent libraries, e.g. --whole-archive.
4. The linker tries to add a library or relocatable object file from each of the
   strings in a .deplibs section by; first, handling the string as if it was
   specified on the command line; second, by looking for the string in each of the
   library search paths in turn; third, by looking for a lib<string>.a or
   lib<string>.so (depending on the current mode of the linker) in each of the
   library search paths.
5. A new command line option --no-dependent-libraries tells LLD to ignore the
   dependent libraries.

Rationale for the above points:

1. Adding the dependent libraries last makes the process simple to understand
   from a developers perspective. All linkers are able to implement this scheme.
2. Error-ing for libraries that are not found seems like better behavior than
   failing the link during symbol resolution.
3. It seems useful for the user to be able to apply command line options which
   will affect all of the dependent libraries. There is a potential problem of
   surprise for developers, who might not realize that these options would apply
   to these "invisible" input files; however, despite the potential for surprise,
   this is easy for developers to reason about and gives developers the control
   that they may require.
4. This algorithm takes into account all of the different ways that ELF linkers
   find input files. The different search methods are tried by the linker in most
   obvious to least obvious order.
5. I considered adding finer grained control over which dependent libraries were
   ignored (e.g. MSVC has /nodefaultlib:<library>); however, I concluded that this
   is not necessary: if finer control is required developers can fall back to using
   the command line directly.

RFC thread: http://lists.llvm.org/pipermail/llvm-dev/2019-March/131004.html.

Differential Revision: https://reviews.llvm.org/D60274

llvm-svn: 360984
2019-05-17 03:44:15 +00:00
Richard Smith f51dc8d2f9 [c++20] P1327R1: Support for typeid applied to objects of polymorphic
class type in constant evaluation.

llvm-svn: 360977
2019-05-17 02:16:45 +00:00
Richard Smith 7ee4307bd4 Refactor constant evaluation of typeid(T) to track a symbolic type_info
object rather than tracking the originating expression.

This is groundwork for supporting polymorphic typeid expressions. (Note
that this somewhat regresses our support for DR1968, but it turns out
that that never actually worked anyway, at least in non-trivial cases.)

llvm-svn: 360974
2019-05-17 01:46:05 +00:00
Nico Weber 457d7caac8 Revert r360946 "Add Clang shared library with C++ exports"
It breaks LLVM_ENABLE_PIC=OFF builds, and it's not clear
if the object library approach doesn't impact the normal
clang binary.

llvm-svn: 360973
2019-05-17 01:42:37 +00:00
Eric Fiselier 06b6a2ef41 Remove unneeded alignment spec from builtin_FUNCTION.cpp test
llvm-svn: 360951
2019-05-16 23:07:45 +00:00
Eric Fiselier fe331a67a5 Fix failing source location test on Windows
llvm-svn: 360947
2019-05-16 22:21:42 +00:00
Chris Bieneman 10fba12e50 Add Clang shared library with C++ exports
Summary:
This patch adds a libClang_shared library on *nix systems which exports the entire C++ API. In order to support this on Windows we should really refactor llvm-shlib and share code between the two.

This also uses a slightly different method for generating the shared library, which I should back-port to llvm-shlib. Instead of linking the static archives and passing linker flags to force loading the whole libraries, this patch creates object libraries for every library (which has no cost in the build system), and link the object libraries.

Reviewers: tstellar, winksaville

Subscribers: mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61909

llvm-svn: 360946
2019-05-16 22:06:07 +00:00
Eric Fiselier b42c73de3d Fix PCC test failures for source location builtins
llvm-svn: 360943
2019-05-16 21:51:39 +00:00
David L. Jones 9adabefdce [clang/test] Add missing dependency on llvm-cxxfilt.
This tool is needed by clang/test/CodeGen/Output/ppc-mmintrin.c.

llvm-svn: 360939
2019-05-16 21:13:59 +00:00
Kristina Brooks bd97484241 Reland "[Clang][PP] Add the __FILE_NAME__ builtin macro"
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
2019-05-16 21:13:49 +00:00
Eric Fiselier 708afb56c1 Implement __builtin_LINE() et. al. to support source location capture.
Summary:
This patch implements the source location builtins `__builtin_LINE(), `__builtin_FUNCTION()`, `__builtin_FILE()` and `__builtin_COLUMN()`. These builtins are needed to implement [`std::experimental::source_location`](https://rawgit.com/cplusplus/fundamentals-ts/v2/main.html#reflection.src_loc.creation).

With the exception of `__builtin_COLUMN`, GCC also implements these builtins, and Clangs behavior is intended to match as closely as possible. 

Reviewers: rsmith, joerg, aaron.ballman, bogner, majnemer, shafik, martong

Reviewed By: rsmith

Subscribers: rnkovacs, loskutov, riccibruno, mgorny, kunitoki, alexr, majnemer, hfinkel, cfe-commits

Differential Revision: https://reviews.llvm.org/D37035

llvm-svn: 360937
2019-05-16 21:04:15 +00:00
Craig Topper 20040db9a6 [X86] Stop implicitly enabling avx512vl when avx512bf16 is enabled.
Previously we were doing this so that the 256 bit selectw builtin could be used in the implementation of the 512->256 bit conversion intrinsic.

After this commit we now use a masked convert builtin that will emit the intrinsic call and the 256-bit select from custom code in CGBuiltin. Then the header only needs to call that one intrinsic.

llvm-svn: 360924
2019-05-16 18:28:17 +00:00
Stephen Kelly 60bf24aa9d Update comments on enums
llvm-svn: 360922
2019-05-16 18:02:36 +00:00
Stephen Kelly d147cea3b9 Move TraversalKind enum to ast_type_traits
Summary:
Make it usable outside of ASTMatchFinder.  This will make it possible to
use this enum to control whether certain implicit nodes are skipped
while AST dumping for example.

Reviewers: klimek, aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61836

llvm-svn: 360920
2019-05-16 17:57:38 +00:00
Craig Topper 58964566e0 [X86] Update doxygen comments for AVX512BF16 to not refer to masks as 'immediates'. Refer to parameter names instead of 'src', 'src1', 'src2'. NFC
llvm-svn: 360918
2019-05-16 17:34:35 +00:00
Ilya Biryukov 600ec01b7e [CodeComplete] Complete enumerators when preferred type is an enum
Reviewers: kadircet

Reviewed By: kadircet

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62010

llvm-svn: 360912
2019-05-16 16:06:57 +00:00
Kristof Umann daa91492dd [analyzer] Add a test plugin for checker option handling
Differential Revision: https://reviews.llvm.org/D59465

llvm-svn: 360910
2019-05-16 15:55:07 +00:00
Alexandre Ganea 738e42efb3 ftime-trace as a CoreOption
Differential Revision: https://reviews.llvm.org/D61945

llvm-svn: 360907
2019-05-16 15:14:01 +00:00
Xing Xue 6dc363ecc1 Add AIX Version Macros
Summary:
- This patch checks the AIX version and defines the appropriate macros.
- Follow up to a comment on D59048.

Author: andusy

Reviewers: hubert.reinterpretcast, jasonliu, sfertile, xingxue

Reviewed By: sfertile

Subscribers: jsji, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61530

llvm-svn: 360900
2019-05-16 14:22:37 +00:00
Adhemerval Zanella 0d9dcd7bf0 [clang] Handle lround/llround builtins
As for other floating-point rounding builtins that can be optimized
when build with -fno-math-errno, this patch adds support for lround
and llround.  It currently only optimize for AArch64 backend.

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D61392

llvm-svn: 360896
2019-05-16 13:43:25 +00:00
Fangrui Song e183340c29 Recommit [Object] Change object::SectionRef::getContents() to return Expected<StringRef>
r360876 didn't fix 2 call sites in clang.

Expected<ArrayRef<uint8_t>> may be better but use Expected<StringRef> for now.

Follow-up of D61781.

llvm-svn: 360892
2019-05-16 13:24:04 +00:00
Kristof Umann 1b93a24c29 Reland "[analyzer] Add an example plugin for checker dependency handling"
Buildbots complained that they couldn't find the newly added plugins.

The solution was to move the check-clang cmake target closer to the bottom of
the file, after the new dependencies are added.

Differential Revision: https://reviews.llvm.org/D59464

llvm-svn: 360891
2019-05-16 13:22:04 +00:00
Serge Guelton ab15546983 Fix isInSystemMacro in presence of macro and pasted token
When a warning is raised from the expansion of a system macro that
involves pasted token, there was still situations were they were not
skipped, as showcased by this issue:
https://bugzilla.redhat.com/show_bug.cgi?id=1472437

Differential Revision: https://reviews.llvm.org/D59413

llvm-svn: 360885
2019-05-16 12:40:00 +00:00
Karl-Johan Karlsson 0e525a4d6b [builtin] Fixed definitions of builtins that rely on the int/long long type is 32/64 bits
Summary:
The definition of the builtins __builtin_bswap32, __builtin_bitreverse32, __builtin_rotateleft32 and __builtin_rotateright32 rely on that the int type is 32 bits wide on the target.
The defintions of the builtins __builtin_bswap64, __builtin_bitreverse64, __builtin_rotateleft64, and __builtin_rotateright64 rely on that the long long type is 64 bits wide.

On targets where this is not the case (e.g. AVR) clang will generate faulty code (wrong llvm assembler intrinsics).

This patch add support for using 'Z' (the int32_t type) in Bultins.def. The builtins above are changed to be based on the int32_t type instead of the int type, and the int64_t type instead of the long long type.

The AVR backend (experimental) have a native int type that is only 16 bits wide. The supplied testcase will therefore fail if running the testcase on trunk as clang will convert e.g. __builtin_bitreverse32 into llvm.bitreverse.i16 on AVR.

Reviewers: dylanmckay, spatel, rsmith, efriedma

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D61845

llvm-svn: 360863
2019-05-16 07:18:02 +00:00
Kristina Brooks 9d65624bf6 Revert r360833 until I can work out the issue with Win32 bots
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
2019-05-16 03:30:08 +00:00
Kristina Brooks 69e927662d Fix assumption about Win32 paths in r360833
Attempt to fix Windows buildbots due to differences in
path handling (caused by r360833).

llvm-svn: 360839
2019-05-16 02:46:12 +00:00
Richard Smith 3d09131aee Fix regression in r360311 caused by reversed bool arguments.
llvm-svn: 360837
2019-05-16 02:06:16 +00:00
Kristina Brooks 3acc1d1be3 [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: 360833
2019-05-16 00:52:41 +00:00
Richard Smith beda951d78 Make tentative parsing to detect template-argument-lists less aggressive
(and less wrong).

It's not correct to assume that X<something, Type> is always a
template-id; there are a few cases where the comma takes us into a
non-expression syntactic context in which 'Type' might be permissible.
Stop doing that.

This slightly regresses our error recovery on the cases where the
construct is intended to be a template-id. We typically do still manage
to diagnose a missing 'template' keyword, but we realize this too late
to properly recover from the error.

This fixes a regression introduced by r360308.

llvm-svn: 360827
2019-05-15 23:36:14 +00:00
David Bolvansky eef2060bd9 [clang-format] Fixed self assignment
Reviewers: MyDeveloperDay, RKSimon

Reviewed By: MyDeveloperDay

Subscribers: RKSimon, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61281

llvm-svn: 360810
2019-05-15 20:29:33 +00:00
Gheorghe-Teodor Bercea 9392bd6987 [OpenMP][Bugfix] Move double and float versions of abs under c++ macro
Summary:
This is a fix for the reported bug:

[[ https://bugs.llvm.org/show_bug.cgi?id=41861 | 41861 ]]

abs functions need to be moved under the c++ macro to avoid conflicts with included headers.

Reviewers: tra, jdoerfert, hfinkel, ABataev, caomhin

Reviewed By: jdoerfert

Subscribers: guansong, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61959

llvm-svn: 360809
2019-05-15 20:28:23 +00:00
Richard Smith 7bd54ab586 [c++20] For P1327R1: support dynamic_cast in constant expression
evaluation.

llvm-svn: 360806
2019-05-15 20:22:21 +00:00
Kristof Umann 750a45fe25 Revert "[analyzer] Add a test for plugins using checker dependencies"
Buildbots don't seem to find the new plugin.

llvm-svn: 360805
2019-05-15 20:19:51 +00:00
Gheorghe-Teodor Bercea 7641f310d7 [OpenMP][bugfix] Fix issues with C++ 17 compilation when handling math functions
Summary: In OpenMP device offloading we must ensure that unde C++ 17, the inclusion of cstdlib will works correctly.

Reviewers: ABataev, tra, jdoerfert, hfinkel, caomhin

Reviewed By: jdoerfert

Subscribers: Hahnfeld, guansong, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61949

llvm-svn: 360804
2019-05-15 20:18:21 +00:00
Erik Pilkington f6c645f9fd [CodeGenObjC] invoke objc_autorelease, objc_retain when necessary
Any of these methods can be overridden, so we need to invoke these functions.

Differential revision: https://reviews.llvm.org/D61957

llvm-svn: 360802
2019-05-15 20:15:01 +00:00
Kristof Umann 47241aaff7 [analyzer] Add a test for plugins using checker dependencies
Also, I moved the existing analyzer plugin to test/ as well, in order not to
give the illusion that the analyzer supports plugins -- it's capable of handling
them, but does not _support_ them.

Differential Revision: https://reviews.llvm.org/D59464

llvm-svn: 360799
2019-05-15 19:47:26 +00:00
Artem Dergachev 07c7257cdc [analyzer] RetainCount: Fix os_returns_retained_on_zero with weird return types.
The checker was crashing when it was trying to assume a structure
to be null or non-null so that to evaluate the effect of the annotation.

Differential Revision: https://reviews.llvm.org/D61958

llvm-svn: 360790
2019-05-15 18:41:32 +00:00
Kevin Petit ad08ea284f Test commit
Remove stray space.

Signed-off-by: Kevin Petit <kevin.petit@arm.com>
llvm-svn: 360783
2019-05-15 16:39:28 +00:00
Gabor Marton 5ac6d49065 [ASTImporter] Use llvm::Expected and Error in the importer API
Summary:
This is the final phase of the refactoring towards using llvm::Expected
and llvm::Error in the ASTImporter API.
This involves the following:
- remove old Import functions which returned with a pointer,
- use the Import_New functions (which return with Err or Expected) everywhere
  and handle their return value
- rename Import_New functions to Import
This affects both Clang and LLDB.

Reviewers: shafik, teemperor, aprantl, a_sidorin, balazske, a.sidorin

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits, lldb-commits

Tags: #clang, #lldb

Differential Revision: https://reviews.llvm.org/D61438

llvm-svn: 360760
2019-05-15 10:29:48 +00:00
Artem Dergachev e41ae14581 [analyzer] MIGChecker: Fix redundant semicolon.
llvm-svn: 360739
2019-05-15 01:36:41 +00:00
Artem Dergachev 70b654fa9b [analyzer] MIGChecker: Add support for os_ref_retain().
Suppress MIG checker false positives that occur when the programmer increments
the reference count before calling a MIG destructor, and the MIG destructor
literally boils down to decrementing the reference count.

Differential Revision: https://reviews.llvm.org/D61925

llvm-svn: 360737
2019-05-15 01:19:19 +00:00
Leonard Chan 048a97bca4 Fix bots by adding target triple to test.
llvm-svn: 360720
2019-05-14 22:37:34 +00:00
Leonard Chan 0cdd3b1d81 [NewPM] Port HWASan and Kernel HWASan
Port hardware assisted address sanitizer to new PM following the same guidelines as msan and tsan.

Changes:
- Separate HWAddressSanitizer into a pass class and a sanitizer class.
- Create new PM wrapper pass for the sanitizer class.
- Use the getOrINsert pattern for some module level initialization declarations.
- Also enable kernel-kwasan in new PM
- Update llvm tests and add clang test.

Differential Revision: https://reviews.llvm.org/D61709

llvm-svn: 360707
2019-05-14 21:17:21 +00:00
Reid Kleckner dc2f5f9ff8 Fix ASTMerge/namespace/test.cpp after r360701
llvm-svn: 360705
2019-05-14 20:01:03 +00:00
Eric Christopher 030b17db66 Temporarily revert "Change -gz and -Wa,--compress-debug-sections to use gABI compression (SHF_COMPRESSED)"
This affects users of older (pre 2.26) binutils in such a way that they can't necessarily
work around it as it doesn't support the compress option on the command line. Reverting
to unblock them and we can revisit whether to make this change now or fix how we want
to express the option.

This reverts commit bdb21337e6e1732c9895966449c33c408336d295/r360403.

llvm-svn: 360703
2019-05-14 19:40:42 +00:00
Reid Kleckner 2423b7dfd3 Update ASTMerge FileCheck test expectations
I belive many of these diagnostics changed from errors to warnings in
r357394. I've simply mechanically updated the tests, but whoever owns
this code should probably audit for unintented behavior changes. I
wasn't able to find a flag to make these warnings errors again.

llvm-svn: 360701
2019-05-14 19:02:39 +00:00
Reid Kleckner 0333dd9563 Restore test files accidentally deleted in r354839
I think there must be a bug in git-llvm causing parent directories to be
deleted when the diff deletes files in a subdirectory. Perhaps it is
Windows-only.

There has been a behavior change, so some of these tests now fail. I
have marked them XFAIL and will fix them in a follow-up to separate the
changes.

llvm-svn: 360699
2019-05-14 18:51:07 +00:00
Simon Pilgrim 728ffd000a [Sema] CodeSynthesisContext - add missing variable initialization to constructor. NFCI.
SavedInNonInstantiationSFINAEContext isn't used outside of specific contexts but this fixes cppcheck and scan-build warnings.

llvm-svn: 360681
2019-05-14 14:58:47 +00:00
Russell Gallop 7a9ccf89f2 [Driver][Windows] Add dependent lib argument for profile instr generate
This is needed so lld-link can find clang_rt.profile when self hosting
on Windows with PGO. Using clang-cl as a linker knows to add the library
but self hosting, using -DCMAKE_LINKER=<...>/lld-link.exe doesn't.

Differential Revision: https://reviews.llvm.org/D61742

llvm-svn: 360674
2019-05-14 14:01:40 +00:00
Nico Weber 2e9591c23a Make getObjCEncodingForTypeImpl() take a bitmask instead of 8 bools
Slightly easier to read, uses slightly less stack space, and makes it
impossible to mix up the order of all those bools.

No behavior change.

Differential Revision: https://reviews.llvm.org/D61788

llvm-svn: 360668
2019-05-14 12:32:37 +00:00
Aaron Ballman d06f391791 Add a new language mode for C2x; enable [[attribute]] support by default in C2x.
llvm-svn: 360667
2019-05-14 12:09:55 +00:00
Hans Wennborg b0dbc9612f Revert r360637 "PR41817: Fix regression in r359260 that caused the MS compatibility"
> extension allowing a "static" declaration to follow an "extern"
> declaration to stop working.

It introduced asserts for some "static-following-extern" cases, breaking the
Chromium build. See the cfe-commits thread for reproducer.

llvm-svn: 360657
2019-05-14 10:11:33 +00:00
Richard Smith 3bde7bf3e0 PR41817: Fix regression in r359260 that caused the MS compatibility
extension allowing a "static" declaration to follow an "extern"
declaration to stop working.

llvm-svn: 360637
2019-05-14 00:27:16 +00:00
Richard Smith 921f132a0f [c++20] P1064R0: Allow virtual function calls in constant expression
evaluation.

This reinstates r360559, reverted in r360580, with a fix to avoid
crashing if evaluation-for-overflow mode encounters a virtual call on an
object of a class with a virtual base class, and to generally not try to
resolve virtual function calls to objects whose (notional) vptrs are not
readable. (The standard rules are unclear here, but this seems like a
reasonable approach.)

llvm-svn: 360635
2019-05-13 23:35:21 +00:00
Stanislav Mekhanoshin 91792f1b93 [AMDGPU] gfx1010 clang target
Differential Revision: https://reviews.llvm.org/D61875

llvm-svn: 360634
2019-05-13 23:15:59 +00:00
Volodymyr Sapsai 51e79f0634 [X86] Make `x86intrin.h`, `immintrin.h` includable with `-fno-gnu-inline-asm`.
Currently `immintrin.h` includes `pconfigintrin.h` and `sgxintrin.h`
which contain inline assembly. It causes failures when building with the
flag `-fno-gnu-inline-asm`.

Fix by excluding functions with inline assembly when this extension is
disabled. So far there was no need to support `_pconfig_u32`,
`_enclu_u32`, `_encls_u32`, `_enclv_u32` on platforms that require
`-fno-gnu-inline-asm`. But if developers start using these functions,
they'll have compile-time undeclared identifier errors which is
preferrable to runtime errors.

rdar://problem/49540880

Reviewers: craig.topper, GBuella, rnk, echristo

Reviewed By: rnk

Subscribers: jkorous, dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D61621

llvm-svn: 360630
2019-05-13 22:40:11 +00:00
Aaron Ballman 3fdd2b1bd2 Removing an unused member variable; NFC.
llvm-svn: 360628
2019-05-13 22:29:16 +00:00
Gheorghe-Teodor Bercea 946957189d [OpenMP][Clang][BugFix] Split declares and math functions inclusion.
Summary: This patches fixes an issue in which the __clang_cuda_cmath.h header is being included even when cmath or math.h headers are not included.

Reviewers: jdoerfert, ABataev, hfinkel, caomhin, tra

Reviewed By: tra

Subscribers: tra, mgorny, guansong, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61765

llvm-svn: 360626
2019-05-13 22:11:44 +00:00
Volodymyr Sapsai 44a7abe584 Make language option `GNUAsm` discoverable with `__has_extension` macro.
This can be used for better support of `-fno-gnu-inline-asm` builds.

rdar://problem/49540880

Reviewers: aaron.ballman, rsmith

Reviewed By: aaron.ballman

Subscribers: eraman, jkorous, dexonsmith, craig.topper, cfe-commits

Differential Revision: https://reviews.llvm.org/D61619

llvm-svn: 360625
2019-05-13 22:11:10 +00:00
Aaron Ballman 2ce598a44a Introduce the ability to dump the AST to JSON.
This adds the -ast-dump=json cc1 flag (in addition to -ast-dump=default, which is the default if no dump format is specified), as well as some initial AST dumping functionality and tests.

llvm-svn: 360622
2019-05-13 21:39:55 +00:00
Marshall Clow ce78105558 Make more friendly with unions. Reviewed as https://reviews.llvm.org/D61858
llvm-svn: 360614
2019-05-13 19:29:23 +00:00
Jan Korous 1652d81401 [clang][ASTContext] Call setAttached for comments attached to a declaration
This is a bug affecting performance when compiling with -Wdocumentation.

In Sema::ActOnDocumentable we're checking whether there are any comments unattached to declaration at the end of comment list whenever we encounter new documentable declaration.
Since this property of RawComment was never set we were trying to find comments every time and that involves at least a couple expensive SourceLocation decompositions.

Differential Revision: https://reviews.llvm.org/D61538

llvm-svn: 360607
2019-05-13 17:52:09 +00:00
Hans Wennborg d5fb162563 Revert r360559 "[c++20] P1064R0: Allow virtual function calls in constant expression evaluation."
This caused Chromium builds to hit the new "can't handle virtual calls with
virtual bases" assert. Reduced repro coming up.

llvm-svn: 360580
2019-05-13 13:19:09 +00:00
Gabor Marton 3c72fe1bad [ASTImporter] Separate unittest files
Summary:
Move generic redecl chain tests and visibility tests into their own
separate test files.

Reviewers: a_sidorin, a.sidorin, shafik

Subscribers: mgorny, rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61786

llvm-svn: 360572
2019-05-13 10:06:25 +00:00
Richard Smith c7214f6510 PR41845: Detect and reject mismatched inner/outer pack expansion sizes
in fold expressions rather than crashing.

llvm-svn: 360563
2019-05-13 08:31:14 +00:00
Richard Smith dab287b550 PR41854: Don't assert when constant-evaluating a member function call on an invalid designator.
llvm-svn: 360560
2019-05-13 07:51:29 +00:00
Richard Smith 5c5be6b2f7 [c++20] P1064R0: Allow virtual function calls in constant expression
evaluation.

llvm-svn: 360559
2019-05-13 07:42:10 +00:00
Leonard Chan 4235a4edfe Fix test to use -cc1.
llvm-svn: 360548
2019-05-12 22:44:46 +00:00
Stephane Moore 3109836a60 [clang] Regenerate AST matcher docs 📖
Summary:
The documentation seems to have been manually edited in https://reviews.llvm.org/rGa282bde69e375985edd4c371b79864f617380ad5.

This commit regenerates the documentation and commits the resulting diff.

Reviewers: benhamilton, mwyman

Reviewed By: mwyman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61769

llvm-svn: 360545
2019-05-12 21:52:19 +00:00
Leonard Chan 69aec05bb1 Fix for P41852 where builtin attributes were being caught by FindLocsWithCommonFileID().
llvm-svn: 360544
2019-05-12 21:50:01 +00:00
Lubos Lunak ab8cde446b make -ftime-trace also print template arguments
Without this, I get e.g. 'PerformPendingInstantiations' -> 'std::fill',
now I get 'std::fill<unsigned long *, int>'.

Differential Revision: https://reviews.llvm.org/D61822

llvm-svn: 360539
2019-05-12 10:39:21 +00:00
Richard Smith debad6460b Reject attempts to call non-static member functions on objects outside
their lifetime in constant expressions.

This is undefined behavior per [class.cdtor]p2.

We continue to allow this for objects whose values are not visible
within the constant evaluation, because there's no way we can tell
whether the access is defined or not, existing code relies on the
ability to make such calls, and every other compiler allows such
calls.

This reinstates r360499, reverted in r360531.

llvm-svn: 360538
2019-05-12 09:39:08 +00:00
Richard Smith d3d6f4f65c Fix handling of objects under construction during constant expression
evaluation.

It's not enough to just track the LValueBase that we're evaluating, we
need to also track the path to the objects whose constructors are
running.

This reinstates r360464 (reverted in r360531) with a workaround for an
MSVC bug that previously caused the Windows bots to fail.

llvm-svn: 360537
2019-05-12 08:57:59 +00:00
Simon Pilgrim 73e8b67438 Revert rL360499 and rL360464 from cfe/trunk:
Reject attempts to call non-static member functions on objects outside
their lifetime in constant expressions.

This is undefined behavior per [class.cdtor]p2.

We continue to allow this for objects whose values are not visible
within the constant evaluation, because there's no way we can tell
whether the access is defined or not, existing code relies on the
ability to make such calls, and every other compiler allows such
calls.
........
Fix handling of objects under construction during constant expression
evaluation.

It's not enough to just track the LValueBase that we're evaluating, we
need to also track the path to the objects whose constructors are
running.
........
Fixes windows buildbots

llvm-svn: 360531
2019-05-11 20:21:59 +00:00
Simon Pilgrim 3ff9c51eba ConstantLValueEmitter::tryEmitAbsolute - remove unused variable. NFCI.
Duplicate getOffset() call.

llvm-svn: 360515
2019-05-11 11:01:46 +00:00
Richard Smith d05df0ef43 Reject attempts to call non-static member functions on objects outside
their lifetime in constant expressions.

This is undefined behavior per [class.cdtor]p2.

We continue to allow this for objects whose values are not visible
within the constant evaluation, because there's no way we can tell
whether the access is defined or not, existing code relies on the
ability to make such calls, and every other compiler allows such
calls.

llvm-svn: 360499
2019-05-11 02:00:06 +00:00
Fangrui Song baabc87d8b [cc1as] Change -compress-debug-sections= to use --
The double dash form is documented by GNU as, used by gcc, and accepted by llvm-mc.

llvm-svn: 360495
2019-05-11 01:14:50 +00:00
Amara Emerson 1e3b789938 [Darwin] Introduce a new flag, -fapple-link-rtlib that forces linking of the builtins library.
This driver flag is useful when users want to link against the compiler's
builtins, but nothing else, and so use flags like -nostdlib.

Darwin can't use -nolibc & nostdlib++ like other platforms on because we
disable all runtime lib linking with -static, which we still want to have
an option to link with the builtins.

Differential Revision: https://reviews.llvm.org/D58320

llvm-svn: 360483
2019-05-10 23:24:20 +00:00
Akira Hatanaka 34d28cf25f [CodeGen][ObjC] Emit invoke instead of call to call `objc_release` when
necessary.

Prior to r349952, clang used to call objc_msgSend when sending a release
messages, emitting an invoke instruction instead of a call instruction
when it was necessary to catch an exception. That changed in r349952
because runtime function objc_release is called as a nounwind function,
which broke programs that were overriding the dealloc method and
throwing an exception from it. This patch restores the behavior prior to
r349952.

rdar://problem/50253394

Differential Revision: https://reviews.llvm.org/D61803

llvm-svn: 360474
2019-05-10 21:54:16 +00:00
Teresa Johnson 962a6f35b5 [ThinLTO] Clang test changes for new CanAutoHide flag
llvm-svn: 360468
2019-05-10 20:38:31 +00:00
Alexandre Ganea 904a3e5183 Fixed tests where grep was not matching the linefeed
When files are synchronized locally as CRLF on Windows, grep didn't match the newline. Switched to FileCheck instead.

Differential Revision: https://reviews.llvm.org/D61496

llvm-svn: 360467
2019-05-10 20:11:36 +00:00
Leonard Chan bcb9bbc011 Add target triple to test.
llvm-svn: 360465
2019-05-10 20:07:47 +00:00
Richard Smith c0fe5eb39c Fix handling of objects under construction during constant expression
evaluation.

It's not enough to just track the LValueBase that we're evaluating, we
need to also track the path to the objects whose constructors are
running.

llvm-svn: 360464
2019-05-10 20:05:32 +00:00
Richard Smith 5b5e27afa4 Improve interface of APValuePathEntry.
llvm-svn: 360463
2019-05-10 20:05:31 +00:00
Paul Robinson 4846034881 Replace 'REQUIRES: nozlib' with '!zlib' because we don't need two ways
to say the same thing.

llvm-svn: 360452
2019-05-10 18:32:53 +00:00
Leonard Chan dc5d975906 Fix and test for assertion error in P41835.
llvm-svn: 360448
2019-05-10 18:05:15 +00:00
Paul Robinson d5d4df98bb Replace 'REQUIRES: not_?san' with 'UNSUPPORTED: ?san' as that better
expresses the intent of the exclusion.

llvm-svn: 360447
2019-05-10 17:57:22 +00:00
Erik Pilkington f8ccf05293 [Sema] Mark array element destructors referenced during initialization
This fixes a crash where we would neglect to mark a destructor referenced for an
__attribute__((no_destory)) array. The destructor is needed though, since if an
exception is thrown we need to cleanup the elements.

rdar://48462498

Differential revision: https://reviews.llvm.org/D61165

llvm-svn: 360446
2019-05-10 17:52:26 +00:00
Nikolai Kosjar cfe1ab97d6 [libclang] Forward isInline for NamespaceDecl to libclang
llvm-svn: 360428
2019-05-10 13:58:34 +00:00
Nico Weber df12933d91 Add name comments for bools passed to getObjCEncodingForTypeImpl()
No behavior change. Medium term, probably want to use a bitmask instead
of 8 distinct bool parameters, but let's make the call sites easier to
read first.

llvm-svn: 360427
2019-05-10 13:56:56 +00:00
Paul Robinson 4b66e0fd47 Replace lit feature keyword 'non-ms-sdk' with 'ms-sdk'; eliminate
'non-ps4-sdk' and use just 'ps4'.

llvm-svn: 360425
2019-05-10 13:40:17 +00:00
Simon Pilgrim ba8f9123cd Fix Wdocumentation warning. NFCI.
llvm-svn: 360419
2019-05-10 10:36:37 +00:00
Nikolai Kosjar 3c28a2dc6b [Preamble] Stop circular inclusion of main file when building preamble
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
2019-05-10 10:25:35 +00:00
Krasimir Georgiev 4dea1378ea Revert "Revert "[clang-format] Keep protobuf "package" statement on one line""
Summary:
Top-level "package" and "import" statements should generally be kept on
one line, for all languages.

----

This reverts commit rL356912.
The regression from rL356835 was fixed via rC358275.

Reviewers: krasimir, sammccall, MyDeveloperDay, xinz, dchai, klimek

Reviewed By: krasimir, xinz, dchai

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D60661

llvm-svn: 360411
2019-05-10 09:15:11 +00:00
Fangrui Song c4f12013df Delete write-only HasQualifiers after rC360370
llvm-svn: 360408
2019-05-10 06:59:50 +00:00
Dmitri Gribenko c5f2544cc4 Added an assert in `isConstantInitializer`: initializer lists must be in semantic form
Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61485

llvm-svn: 360406
2019-05-10 06:39:20 +00:00
Akira Hatanaka c39a243da6 Assume `__cxa_allocate_exception` returns an under-aligned memory on
Darwin if the version of libc++abi isn't new enough to include the fix
in r319123

This patch resurrects r264998, which was committed to work around a bug
in libc++abi that was causing _cxa_allocate_exception to return a memory
that wasn't double-word aligned.

http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20160328/154332.html

In addition, this patch makes clang issue a warning if the type of the
thrown object requires an alignment that is larger than the minimum
guaranteed by the target C++ runtime.

rdar://problem/49864414

Differential Revision: https://reviews.llvm.org/D61667

llvm-svn: 360404
2019-05-10 02:16:37 +00:00
Fangrui Song bdb21337e6 Change -gz and -Wa,--compress-debug-sections to use gABI compression (SHF_COMPRESSED)
Since July 15, 2015 (binutils-gdb commit
19a7fe52ae3d0971e67a134bcb1648899e21ae1c, included in 2.26), gas
--compress-debug-sections=zlib (gcc -gz) means zlib-gabi:
SHF_COMPRESSED. Before that it meant zlib-gnu (.zdebug).

clang's -gz was introduced in rC306115 (Jun 2017) to indicate zlib-gnu. It
is 2019 now and it is not unreasonable to assume users of the new
feature to have new linkers (ld.bfd/gold >= 2.26, lld >= rLLD273661).

Change clang's default accordingly to improve standard conformance.
zlib-gnu becomes out of fashion and gets poorer toolchain support.
Its mangled names confuse tools and are more likely to cause problems.

Reviewed By: compnerd

Differential Revision: https://reviews.llvm.org/D61689

llvm-svn: 360403
2019-05-10 02:08:21 +00:00
Richard Smith 8900944109 Remember to decay arrays to pointers before checking whether the
left-hand side of an -> operator is a pointer to class type.

llvm-svn: 360387
2019-05-09 22:22:48 +00:00
Alex Lorenz dee161fb38 NFC, make XFAIL work on macOS correctly for test/Driver/XRay/xray-instrument-os.c
The test 'test/Driver/XRay/xray-instrument-os.c' is supposed to XFAIL on -darwin triples.
However, LLVM can be configured to be built with a -macos triple instead, which is equivalent
to -darwin. This commit updates the XFAIL condition to also XFAIL with a -macos host triple.

llvm-svn: 360374
2019-05-09 20:35:41 +00:00
Richard Smith d9c6b039db DR1872: don't allow any calls to virtual functions in constant
evaluation.

Not even in cases where we would not actually perform virtual dispatch.

llvm-svn: 360370
2019-05-09 19:45:49 +00:00
Richard Smith ba24f352f4 Simplify tracking of end of consumed decl-specifier sequence.
Patch by Tyker!

Differential Revision: https://reviews.llvm.org/D60934

llvm-svn: 360369
2019-05-09 19:45:46 +00:00
Alexey Bataev 412254af75 [OPENMP]Fix PR41767: diagnose DSA for variables in clauses with default(none).
If the combined directive has default(none) clause and has clauses for
inner directive that reference some variables, for which data-sharing
attributes are not specified, the error messages should be emitted for
such variables.

llvm-svn: 360365
2019-05-09 18:44:53 +00:00
Akira Hatanaka b1271cceca Specify target triple to fix the tests I committed in r360359 that are
still failing.

llvm-svn: 360363
2019-05-09 18:32:16 +00:00
Alexey Bataev 41ebe0ce64 [OPENMP]Fix PR41768: check DSA for globals with default(none) clauses.
If the default(none) was specified for the construct, we might miss
diagnostic for the globals without explicitly specified data-sharing
attributes. Patch fixes this problem.

llvm-svn: 360362
2019-05-09 18:14:57 +00:00
Akira Hatanaka e406f0eec6 Specify ObjC runtime to fix the tests I committed in r360359 that are
failing.

llvm-svn: 360361
2019-05-09 18:05:17 +00:00
Akira Hatanaka 187770dc74 [CodeGen][ObjC] Remove the leading `l_` from ObjC symbols and make
private symbols in the __DATA segment internal.

This prevents the linker from removing the symbol names. Keeping the
symbols visible enables tools to collect various information about the
symbols, for example, tools that discover whether or not a symbol gets
dirtied.

rdar://problem/48887111

Differential Revision: https://reviews.llvm.org/D61454

llvm-svn: 360359
2019-05-09 17:43:52 +00:00
Anastasia Stulova e6cf6c78f8 [OpenCL] Make global ctor init function a kernel
We need to be able to enqueue internal function that initializes
global constructors on the host side. Therefore it has to be
converted to a kernel.

This change factors out common logic for adding kernel metadata
and moves it from CodeGenFunction to CodeGenModule in order to
make it accessible for the extra use case.

Differential revision: https://reviews.llvm.org/D61488

llvm-svn: 360342
2019-05-09 13:55:44 +00:00
Mikael Holmen 1fa5248d44 Fix gcc compilation warning in an assert [NFC]
Without this, gcc (7.4) complains with

../tools/clang/lib/Parse/ParseDecl.cpp:3937:63: error: suggest parentheses around '&&' within '||' [-Werror=parentheses]
     assert(!isAlreadyConsumed || RangeEnd != SourceLocation() &&
                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
                                      "both or neither of isAlreadyConsumed and "
                                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                      "RangeEnd needs to be set");
                                      ~

llvm-svn: 360333
2019-05-09 12:11:57 +00:00
Anastasia Stulova 933e305ed9 [OpenCL] Switched CXX mode to be derived from C++17
Differential revision: https://reviews.llvm.org/D61506

llvm-svn: 360330
2019-05-09 11:55:24 +00:00
Diogo N. Sampaio 86cfedce1c [FIX] Change test to read file instead
This should fix the test file failing in
windows by reading the file it self instead
of stdin, from 543913c3b4

llvm-svn: 360329
2019-05-09 11:23:00 +00:00
Roman Lebedev a8f8d3b01e Revert "[OPENMP]Fix PR41768: check DSA for globals with `default(none)` clauses."
This has introduced (exposed?) a crash in clang sema,
that does not happen without this patch.
I'll followup in the original bugreport and commit with reproducer.

This reverts commit r360061.

llvm-svn: 360327
2019-05-09 10:48:13 +00:00
Roman Lebedev b32a02b5bc Revert "[OPENMP]Fix PR41767: diagnose DSA for variables in clauses with default(none)."
This implementation isn't sound as per the standard.
It erroneously diagnoses e.g. the following case:
```
$ cat test.cpp
void f(int n) {
 #pragma omp parallel default(none) if(n)
    ;
}
```
```
$ ./bin/clang -fopenmp test.cpp
test.cpp:2:40: error: variable 'n' must have explicitly specified data sharing attributes
 #pragma omp parallel default(none) if(n)
                                       ^
test.cpp:2:31: note: explicit data sharing attribute requested here
 #pragma omp parallel default(none) if(n)
                              ^
1 error generated.
```

As per OpenMP Application Programming Interface Version 5.0 November 2018:
* 2.19.4.1default Clause
  The default clause explicitly determines the data-sharing attributes of
  variables that are referenced *in a parallel, teams, or task generating
  construct and would otherwise be implicitly determined
  (see Section 2.19.1.1 on page 270).
* 2.6.1 Determining the Number of Threads for a parallel Region
  Using a variable in an if or num_threads clause expression of a parallel
  construct causes an implicit reference to the variable in all enclosing
  constructs. The if clause expression and the num_threads clause expression
  are evaluated in the context outside of the parallel construct,

This reverts commit r360073.

llvm-svn: 360326
2019-05-09 10:47:45 +00:00
Anastasia Stulova eba9a6e08f [SPIR] Simplified target checking.
Switched to Triple::isSPIR() helper to simplify code.

Patch by kpet (Kevin Petit)!

Differential revision: https://reviews.llvm.org/D61639

llvm-svn: 360325
2019-05-09 10:25:45 +00:00
Diogo N. Sampaio 543913c3b4 [ARM] Fix the extensions implied by a cpu name
Summary:
When using `clang -mcpu=CPUNAME+FEATURELIST`,
the implied features defined by CPUNAME are
not obtained, as the entire string is passed.
This fixes that by spiting the cpuname
string in the first `+`, if any.

For example, when using
```clang -### --target=arm-arm-none-eabi -march=armv7-a -mcpu=cortex-a8+nocrc```
the intrinsic
```"target-feature" "+dsp"```
implied by `cortex-a8` is missing.

Reviewers: keith.walker.arm, DavidSpickett, carwil

Reviewed By: DavidSpickett

Subscribers: javed.absar, kristof.beyls, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61668

llvm-svn: 360324
2019-05-09 10:24:36 +00:00
Petr Hosek 366cda03a8 [NewPM] Setup Passes for KASan and KMSan
While ASan and MSan passes were already ported to new PM, the kernel
variants weren't setup in the pipeline which makes the KASan and KMSan
tests in Clang fail.

Differential Revision: https://reviews.llvm.org/D61664

llvm-svn: 360313
2019-05-09 06:09:35 +00:00
Richard Smith 76b9027f35 [c++20] Add support for explicit(bool), as described in P0892R2.
Patch by Tyker!

Differential Revision: https://reviews.llvm.org/D60934

llvm-svn: 360311
2019-05-09 03:59:21 +00:00
Richard Smith ac0456594b [cxx_status] Mark support for std::is_constant_evaluated as done.
Eric implemented this in r359067.

llvm-svn: 360310
2019-05-09 03:49:47 +00:00
Richard Smith 576c36a624 [cxx_dr_status] Update links to use wg21.link, and list "extension"
issues as "extension" rather than "not resolved".

llvm-svn: 360309
2019-05-09 03:45:57 +00:00
Richard Smith b23c5e8c3d [c++20] Implement P0846R0: allow (ADL-only) calls to template-ids whose
template name is not visible to unqualified lookup.

In order to support this without a severe degradation in our ability to
diagnose typos in template names, this change significantly restructures
the way we handle template-id-shaped syntax for which lookup of the
template name finds nothing.

Instead of eagerly diagnosing an undeclared template name, we now form a
placeholder template-name representing a name that is known to not find
any templates. When the parser sees such a name, it attempts to
disambiguate whether we have a less-than comparison or a template-id.
Any diagnostics or typo-correction for the name are delayed until its
point of use.

The upshot should be a small improvement of our diagostic quality
overall: we now take more syntactic context into account when trying to
resolve an undeclared identifier on the left hand side of a '<'. In
fact, this works well enough that the backwards-compatible portion (for
an undeclared identifier rather than a lookup that finds functions but
no function templates) is enabled in all language modes.

llvm-svn: 360308
2019-05-09 03:31:27 +00:00
Richard Smith 2194fb6ed9 When typo-correcting a function name, consider correcting to a type name
for a function-style cast.

llvm-svn: 360302
2019-05-09 00:57:24 +00:00
Reid Kleckner 44dd05c31b Try to restore some clang test headers lost in r360291
I'm not sure why 'git llvm revert' removed them.

llvm-svn: 360297
2019-05-08 22:30:46 +00:00
Reid Kleckner 55fab1ff48 Revert Include corecrt.h in stddef.h and vcruntime.h in stdarg.h to improve MS compatibility.
This reverts r360271 (git commit a0933bd8ec)

There are concerns on the review that this breaks EFI builds and that
the transitive includes (sal.h) are actually heavy enough that we might
care.

llvm-svn: 360291
2019-05-08 22:01:20 +00:00
Mike Rice a0933bd8ec Include corecrt.h in stddef.h and vcruntime.h in stdarg.h to improve MS
compatibility.  This allows some applications developed with MSVC to
compile with clang without any extra changes.

Fixes: llvm.org/PR40789

Differential Revision: https://reviews.llvm.org/D61646

llvm-svn: 360271
2019-05-08 17:15:21 +00:00
Gheorghe-Teodor Bercea e62c693c8e [OpenMP][Clang] Support for target math functions
Summary:
In this patch we propose a temporary solution to resolving math functions for the NVPTX toolchain, temporary until OpenMP variant is supported by Clang.

We intercept the inclusion of math.h and cmath headers and if we are in the OpenMP-NVPTX case, we re-use CUDA's math function resolution mechanism.

Authors:
@gtbercea
@jdoerfert

Reviewers: hfinkel, caomhin, ABataev, tra

Reviewed By: hfinkel, ABataev, tra

Subscribers: JDevlieghere, mgorny, guansong, cfe-commits, jdoerfert

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61399

llvm-svn: 360265
2019-05-08 15:52:33 +00:00
Gabor Marton ce6b78128f [ASTImporter] Fix inequivalence of unresolved exception spec
Summary:
Structural equivalence of methods can falsely report false when the
exception specifier is unresolved (i.e unevaluated or not instantiated).

(This caused one assertion during bitcoin ctu-analysis.)

Reviewers: a_sidorin, shafik, a.sidorin

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61424

llvm-svn: 360261
2019-05-08 15:23:48 +00:00
Anastasia Stulova 5b6dda33d1 [Sema][OpenCL] Make address space conversions a bit stricter.
The semantics for converting nested pointers between address
spaces are not very well defined. Some conversions which do not
really carry any meaning only produce warnings, and in some cases
warnings hide invalid conversions, such as 'global int*' to
'local float*'!

This patch changes the logic in checkPointerTypesForAssignment
and checkAddressSpaceCast to fail properly on implicit conversions
that should definitely not be permitted. We also dig deeper into the
pointer types and warn on explicit conversions where the address
space in a nested pointer changes, regardless of whether the address
space is compatible with the corresponding pointer nesting level
on the destination type.

Fixes PR39674!

Patch by ebevhan (Bevin Hansson)!

Differential Revision: https://reviews.llvm.org/D58236

llvm-svn: 360258
2019-05-08 14:23:49 +00:00
Owen Pan 4ba5269f33 [clang-format] Fix the crash when formatting unsupported encodings
Fixes PR33946

Differential Revision: https://reviews.llvm.org/D61559

llvm-svn: 360257
2019-05-08 14:11:12 +00:00
Owen Pan d064c71802 [clang] Fix a bug that reports UTF32 (LE) files as UTF16 (LE) ones
Also fix a typo for the SCSU byte order mark.

Differential Revision: https://reviews.llvm.org/D61628

llvm-svn: 360256
2019-05-08 13:49:17 +00:00
Aaron Ballman ef317e0561 Allow test to pass after 2030.
Patch by Bernhard M. Wiedemann.

llvm-svn: 360254
2019-05-08 13:42:44 +00:00
Aaron Ballman 6de5576af7 Allow 'static' storage specifier on an out-of-line class member template declaration in MSVCCompat mode.
Patch by Soumi Manna.

llvm-svn: 360250
2019-05-08 13:24:36 +00:00
Nikolai Kosjar 2a647e75c5 [libclang] PR41649: Remove pointless duplicate flag. NFC.
llvm-svn: 360249
2019-05-08 13:19:29 +00:00
Leonard Chan aae9da70ff Fix for the greendragon bots.
Adds extra checks for ObjC GC and Ownership.

llvm-svn: 360225
2019-05-08 05:59:25 +00:00
Sam McCall 835d67f6c7 [Sema] Correct typos in return statements so the return types of 'auto' functions are always deduced.
Summary:
e.g.
  auto foo() {
    return no_such_thing; // Return value is a TypoExpr
  }
  using T = decltype(foo()); // Uh-oh, undeduced auto.

Reviewers: rsmith

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61649

llvm-svn: 360224
2019-05-08 05:49:42 +00:00
Nemanja Ivanovic 83eb9c5b58 Fix buildbot break after r360195
llvm-svn: 360220
2019-05-08 02:03:32 +00:00
Richard Smith 255b85f03c Split ActOnCallExpr into an ActOnCallExpr to be called by the parser,
and a BuildCallExpr to be called internally within Sema to build /
rebuild calls.

llvm-svn: 360217
2019-05-08 01:36:36 +00:00
Michael Liao 0fb707b93b [hip] Fix ambiguity from `>>>` of CUDA.
Summary:
- For template arguments ending with `>>>`, we should cease lookahead
  and treat it as type-id firstly, so that deduction could work
  properly.

Reviewers: tra, yaxunl

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61396

llvm-svn: 360214
2019-05-08 00:52:33 +00:00
Reid Kleckner 6bf108d77a [COFF] Use COFF stubs for extern_weak functions
Summary:
A COFF stub indirects the reference to a symbol through memory. A
.refptr.$sym global variable pointer is created to refer to $sym.
Typically mingw uses these for external global variable declarations,
but we can use them for weak function declarations as well.

Updates the dso_local classification to add a special case for
extern_weak symbols on COFF in both clang and LLVM.

Fixes PR37598

Reviewers: smeenai, mstorsjo

Subscribers: hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D61615

llvm-svn: 360207
2019-05-07 23:06:21 +00:00
Artem Dergachev b3fc9df481 [analyzer] Fix a crash when doing RVO from within blocks.
When looking for the location context of the call site, unwrap block invocation
contexts because they are attached to the current AnalysisDeclContext
while what we need is the previous AnalysisDeclContext.

Differential Revision: https://reviews.llvm.org/D61545

llvm-svn: 360202
2019-05-07 22:33:13 +00:00
David Blaikie 89e58ddb28 -frewrite-imports: Add support for wildcard rules in umbrella modules with
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
2019-05-07 21:38:51 +00:00
Jonas Devlieghere fe608c938c Revert "[OpenMP][Clang] Support for target math functions"
This commit appears to be breaking stage-2 builds on GreenDragon. The
OpenMP wrappers for cmath and math.h are copied into the root of the
resource directory and cause a cyclic dependency in module 'Darwin':
Darwin -> std -> Darwin. This blows up when CMake is testing for modules
support and breaks all stage 2 module builds, including the ThinLTO bot
and all LLDB bots.

CMake Error at cmake/modules/HandleLLVMOptions.cmake:497 (message):
  LLVM_ENABLE_MODULES is not supported by this compiler

llvm-svn: 360192
2019-05-07 21:08:15 +00:00
Balazs Keri b7d8cffa75 [ASTImporter] Corrected type of integer constant in a test.
llvm-svn: 360156
2019-05-07 14:53:04 +00:00
Aaron Ballman c635eb725e Add an explicit triple to this test to hopefully appease the build bots.
llvm-svn: 360155
2019-05-07 14:40:37 +00:00
Sam McCall 87ad30be5f [Tooling] Add -x flags when inferring compile commands for files with no/invalid extension.
Summary: We treat them as headers, as the motivating case is C++ standard library.

Reviewers: kadircet

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61633

llvm-svn: 360153
2019-05-07 14:34:06 +00:00
Anastasia Stulova d6865b7d71 [OpenCL] Prevent mangling kernel functions.
Kernel function names have to be preserved as in the original
source to be able to access them from the host API side. 

This commit also adds restriction to kernels that prevents them
from being used in overloading, templates, etc.

Differential Revision: https://reviews.llvm.org/D60454

llvm-svn: 360152
2019-05-07 14:22:34 +00:00
Aaron Ballman bb6e7b3654 Allow field offset lookups in types with incomplete arrays within libclang.
Patch thanks to Jorn Vernee

llvm-svn: 360147
2019-05-07 14:00:49 +00:00
Balazs Keri 1efc97425d [ASTImporter] Import TemplateParameterLists in function templates.
Summary: Correct missing import of TemplateParameterList in function decl.

Reviewers: martong, a.sidorin, shafik

Reviewed By: martong

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D60461

llvm-svn: 360132
2019-05-07 10:55:11 +00:00
Sam McCall fdbb61856e [Tooling] Don't mmap the JSONCompilationDatabase, it's not correct for long-lived processes.
Reviewers: ilya-biryukov

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61631

llvm-svn: 360122
2019-05-07 09:05:15 +00:00
Leonard Chan bcaee49d00 [Sema] Add missing VisitMacroQualifiedTypeLoc to TypeSpecLocFiller
To hopefully fix greenbot failures

llvm-svn: 360120
2019-05-07 08:12:28 +00:00
Richard Smith b30657938c Improve function / variable disambiguation.
Keep looking for decl-specifiers after an unknown identifier. Don't
issue diagnostics about an error type specifier conflicting with later
type specifiers.

llvm-svn: 360117
2019-05-07 07:36:07 +00:00
Leonard Chan c72aaf62d3 Recommit r359859 "[Attribute/Diagnostics] Print macro if definition is an attribute declaration"
Updated with fix for read of uninitialized memory.

llvm-svn: 360109
2019-05-07 03:20:17 +00:00
Eric Christopher e2b7332d2d Fix typo in risc-v register aliases.
Patch by John.

Differential Revision: https://reviews.llvm.org/D61464

llvm-svn: 360104
2019-05-07 00:45:47 +00:00
Petr Hosek 5f2e10e9c3 [Clang][NewPM] Don't bail out if the target machine is empty
This matches the behavior of the old pass manager. There are some
targets that don't have target machine at all (e.g. le32, spir) which
whose tests would never run with new pass manager. Similarly, we would
need to disable tests for targets that are disabled.

Differential Revision: https://reviews.llvm.org/D58374

llvm-svn: 360100
2019-05-06 23:24:17 +00:00
Leonard Chan 415da71355 [Sema] Fix for P41774 where `ExpectNoDerefChunk` is assigned twice
llvm-svn: 360089
2019-05-06 22:09:12 +00:00
Jordan Rupprecht 8f14e7cacf Revert "Re-commit r357452: SimplifyCFG SinkCommonCodeFromPredecessors: Also sink function calls without used results (PR41259)"
This reverts r357452 (git commit 21eb771dcb).

This was causing strange optimization-related test failures on an internal test. Will followup with more details offline.

llvm-svn: 360086
2019-05-06 21:55:05 +00:00
James Y Knight 1fe312b34b PR41183: Don't emit strict-prototypes warning for an implicit function
declaration.

It should emit _only_ an implicit-function-declaration warning, not
both of them.

Differential Revision: https://reviews.llvm.org/D59711

llvm-svn: 360084
2019-05-06 21:37:59 +00:00
Martin Storsjo 7037a13679 [AArch64] Add __builtin_sponentry, for calling setjmp in MinGW
In MinGW, setjmp isn't expanded as a builtin in the compiler (like it
is for MSVC), but manually hooked up as calls to the right underlying
functions in headers. Using the actual CRT's real setjmp/longjmp
functions requires this intrinsic. (Currently this is worked around by
using MinGW specific reimplementations of setjmp/longjmp on aarch64.)

Differential Revision: https://reviews.llvm.org/D61592

llvm-svn: 360082
2019-05-06 21:19:07 +00:00
Martin Storsjo 5e100de2c7 [MinGW] Use SEH by default on AArch64
The implementation of SEH is pretty mature at this point.

Differential Revision: https://reviews.llvm.org/D61591

llvm-svn: 360081
2019-05-06 21:19:01 +00:00
Alexey Bataev 279365005e [OPENMP]Fix PR41767: diagnose DSA for variables in clauses with
default(none).

If the combined directive has default(none) clause and has clauses for
inner directive that reference some variables, for which data-sharing
attributes are not specified, the error messages should be emitted for
such variables.

llvm-svn: 360073
2019-05-06 20:07:20 +00:00
Gheorghe-Teodor Bercea 1e28a668bc [OpenMP][Clang] Support for target math functions
Summary:
In this patch we propose a temporary solution to resolving math functions for the NVPTX toolchain, temporary until OpenMP variant is supported by Clang.

We intercept the inclusion of math.h and cmath headers and if we are in the OpenMP-NVPTX case, we re-use CUDA's math function resolution mechanism.

Authors:
@gtbercea
@jdoerfert

Reviewers: hfinkel, caomhin, ABataev, tra

Reviewed By: hfinkel, ABataev, tra

Subscribers: mgorny, guansong, cfe-commits, jdoerfert

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61399

llvm-svn: 360063
2019-05-06 18:19:15 +00:00
Alexey Bataev cf9e7a282b [OPENMP]Fix PR41768: check DSA for globals with `default(none)` clauses.
If the `default(none)` was specified for the construct, we might miss
diagnostic for the globals without explicitly specified data-sharing
attributes. Patch fixes this problem.

llvm-svn: 360061
2019-05-06 17:49:22 +00:00
Ilya Biryukov 209b138079 [CodeComplete] Update python tests after r360042
llvm-svn: 360048
2019-05-06 14:56:24 +00:00
Ilya Biryukov 15a37ebb18 [CodeComplete] Add a trailing semicolons to some pattern completions
Summary:
Where semicolon is required in any case. Here's a list of completions
that now have a semicolon:
  - namespace <name> = <target>;
  - using namespace <name>;
  - using <qualifier>::<name>;
  - continue;
  - break;
  - goto <label>;
  - return;
  - return <expression>;

Reviewers: gribozavr

Reviewed By: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61589

llvm-svn: 360042
2019-05-06 13:18:00 +00:00
Hans Wennborg d2b9fc88c8 Revert r359949 "[clang] adding explicit(bool) from c++2a"
This caused Clang to start erroring on the following:

  struct S {
    template <typename = int> explicit S();
  };

  struct T : S {};

  struct U : T {
    U();
  };
  U::U() {}

  $ clang -c /tmp/x.cc
  /tmp/x.cc:10:4: error: call to implicitly-deleted default constructor of 'T'
  U::U() {}
     ^
  /tmp/x.cc:5:12: note: default constructor of 'T' is implicitly deleted
    because base class 'S' has no default constructor
  struct T : S {};
             ^
  1 error generated.

See discussion on the cfe-commits email thread.

This also reverts the follow-ups r359966 and r359968.

> this patch adds support for the explicit bool specifier.
>
> Changes:
> - The parsing for the explicit(bool) specifier was added in ParseDecl.cpp.
> - The storage of the explicit specifier was changed. the explicit specifier was stored as a boolean value in the FunctionDeclBitfields and in the DeclSpec class. now it is stored as a PointerIntPair<Expr*, 2> with a flag and a potential expression in CXXConstructorDecl, CXXDeductionGuideDecl, CXXConversionDecl and in the DeclSpec class.
> - Following the AST change, Serialization, ASTMatchers, ASTComparator and ASTPrinter were adapted.
> - Template instantiation was adapted to instantiate the potential expressions of the explicit(bool) specifier When instantiating their associated declaration.
> - The Add*Candidate functions were adapted, they now take a Boolean indicating if the context allowing explicit constructor or conversion function and this boolean is used to remove invalid overloads that required template instantiation to be detected.
> - Test for Semantic and Serialization were added.
>
> This patch is not yet complete. I still need to check that interaction with CTAD and deduction guides is correct. and add more tests for AST operations. But I wanted first feedback.
> Perhaps this patch should be spited in smaller patches, but making each patch testable as a standalone may be tricky.
>
> Patch by Tyker
>
> Differential Revision: https://reviews.llvm.org/D60934

llvm-svn: 360024
2019-05-06 09:51:10 +00:00
Fangrui Song 041c377a59 [X86] Move files to correct directories after D60552
llvm-svn: 360022
2019-05-06 09:24:36 +00:00
Luo, Yuanke 844f662932 Enable intrinsics of AVX512_BF16, which are supported for BFLOAT16 in Cooper Lake
Summary:
1. Enable infrastructure of AVX512_BF16, which is supported for BFLOAT16 in Cooper Lake;
2. Enable intrinsics for VCVTNE2PS2BF16, VCVTNEPS2BF16 and DPBF16PS instructions, which are Vector Neural Network Instructions supporting BFLOAT16 inputs and conversion instructions from IEEE single precision.
For more details about BF16 intrinsic, please refer to the latest ISE document: https://software.intel.com/en-us/download/intel-architecture-instruction-set-extensions-programming-reference

Patch by LiuTianle

Reviewers: craig.topper, smaslov, LuoYuanke, wxiao3, annita.zhang, spatel, RKSimon

Reviewed By: craig.topper

Subscribers: mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D60552

llvm-svn: 360018
2019-05-06 08:25:11 +00:00
Richard Smith 2b45b267da P1286R2: Remove restriction that the exception specification of a
defaulted special member matches the implicit exception specification.

llvm-svn: 360011
2019-05-06 05:04:56 +00:00
Richard Smith 7d02ca4878 Use DiagRuntimeBehavior for -Wunsequenced to weed out false positives
where either the modification or the other access is unreachable.

This reverts r359984 (which reverted r359962). The bug in clang-tidy's
test suite exposed by the original commit was fixed in r360009.

llvm-svn: 360010
2019-05-06 04:14:01 +00:00
Richard Smith b9fb121a62 [c++20] Implement P1009R2: allow omitting the array bound in an array
new expression.

This was voted into C++20 as a defect report resolution, so we
retroactively apply it to all prior language modes (though it can never
actually be used before C++11 mode).

llvm-svn: 360006
2019-05-06 03:47:15 +00:00
Galina Kistanova 9dd6537b3a The 'CodeGenObjC/illegal-UTF8.m' get failed with Clang built with 32-bit targets only (as example ARM-only) with the following error:
error: unable to create target: 'No available targets are compatible with triple "< ... any 64-bit target triple ... >"'

I didn't find any 64-bit dependencies for the test and I think removing '-m64' option should fix the problem and allow this test for any target specified by LLVM_DEFAULT_TARGET_TRIPLE.

Patch by Vlad Vereschaka.

Differential Revision: https://reviews.llvm.org/D61345

llvm-svn: 360005
2019-05-06 03:30:09 +00:00
Kristof Umann aa9d2623a0 [analyzer][UninitializedObjectChecker] PR41741: Regard all scalar types as primitive.
https://bugs.llvm.org/show_bug.cgi?id=41741

Pretty much the same as D61246 and D61106, this time for __complex__ types. Upon
further investigation, I realized that we should regard all types
Type::isScalarType returns true for as primitive, so I merged 
isMemberPointerType(), isBlockPointerType() and isAnyComplexType()` into that
instead.

I also stumbled across yet another bug,
https://bugs.llvm.org/show_bug.cgi?id=41753, but it seems to be unrelated to
this checker.

Differential Revision: https://reviews.llvm.org/D61569

llvm-svn: 359998
2019-05-05 19:42:33 +00:00
Simon Pilgrim 4c3fbbf635 Revert rL359962 : Use DiagRuntimeBehavior for -Wunsequenced to weed out false positives
where either the modification or the other access is unreachable.
........
Try to fix buildbots

llvm-svn: 359984
2019-05-05 17:10:05 +00:00
Nicolas Lesser 5125a02a03 [clang] fixing -ast-print for variadic parameter pack in lambda capture
Summary:
currently for:
```
 template<typename ... T>
void f(T... t) {
  auto l = [t...]{};
}
```
`clang -ast-print file.cpp`
outputs:

```
template <typename ...T> void f(T ...t) {
    auto l = [t]         {
        }
;
}
```
notice that there is not `...` in the capture list of the lambda. this patch fixes this issue. and add test for it.

Patch by Tyker

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61556

llvm-svn: 359980
2019-05-05 12:35:12 +00:00
Nicolas Lesser ee0571734f [C++] Interpret unknown identifier in parameter clause as unknown type
instead of as parameter name without a type.

llvm-svn: 359979
2019-05-05 12:15:17 +00:00
Nicolas Lesser 55dc751ef7 [NFC] Add parentheses to avoid -Wparentheses.
llvm-svn: 359968
2019-05-04 11:28:11 +00:00
Hamza Sood 8205a814a6 [c++20] Implement P0428R2 - Familiar template syntax for generic lambdas
Differential Revision: https://reviews.llvm.org/D36527

llvm-svn: 359967
2019-05-04 10:49:46 +00:00
Richard Smith cb1beee76f [c++20] Implement tweaked __VA_OPT__ rules from P1042R1:
* __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
2019-05-04 06:46:18 +00:00
Richard Smith 5dbfa76334 Use DiagRuntimeBehavior for -Wunsequenced to weed out false positives
where either the modification or the other access is unreachable.

llvm-svn: 359962
2019-05-04 05:20:14 +00:00
Richard Trieu cf9bd8ade7 Reduce amount of work ODR hashing does.
When a FunctionProtoType is in the original type in a DecayedType, the decayed
type is a PointerType which points back the original FunctionProtoType.  The
visitor for ODRHashing will attempt to process both Type's, doing double work.
By chaining together multiple DecayedType's and FunctionProtoType's, this would
result in 2^N Type's visited only N DecayedType's and N FunctionProtoType's
exsit.  Another bug where VisitDecayedType and VisitAdjustedType did
redundant work doubled the work at each level, giving 4^N Type's visited.  This
patch removed the double work and detects when a FunctionProtoType decays to
itself to only check the Type once.  This lowers the exponential runtime to
linear runtime.  Fixes https://bugs.llvm.org/show_bug.cgi?id=41625

llvm-svn: 359960
2019-05-04 04:22:33 +00:00
Richard Smith 37be3363b5 Disallow the operand of __builtin_constant_p from modifying enclosing
state when it's encountered while evaluating a constexpr function.

We attempt to follow GCC trunk's behavior here, but it is somewhat
inscrutible, so our behavior is only approximately the same for now.
Specifically, we only permit modification of objects whose lifetime
began within the operand of the __builtin_constant_p. GCC appears to
have effectively the same restriction, but also some unknown restriction
based on where and how the local state of the constexpr function is
mentioned within the operand (see added testcases).

llvm-svn: 359958
2019-05-04 04:00:45 +00:00
Petr Hosek 1e393064fa [Driver] Create non-existent directory for -fcrash-diagnostics-dir
When user specifies non-existent directory to -fcrash-diagnostics-dir,
create it rather than failing with an error as would be the case before.

Differential Revision: https://reviews.llvm.org/D61542

llvm-svn: 359954
2019-05-04 00:55:14 +00:00
Richard Smith 3c7688bd57 [cxx_status] Don't list -fmodules / -fmodules-ts against C++ modules
support; those turn on different modules modes. The real C++ modules
support is behind -std=c++2a like the rest of C++20.

llvm-svn: 359953
2019-05-04 00:27:21 +00:00
Richard Smith de510a8eea [cxx_status] Replace "SVN" entries with Clang 8 as appropriate.
Also: use the "svn" color for "explicit(bool)" rather than the "full" color.
llvm-svn: 359951
2019-05-04 00:23:18 +00:00
Nicolas Lesser 5fe2ddbdf4 [clang] adding explicit(bool) from c++2a
this patch adds support for the explicit bool specifier.

Changes:
- The parsing for the explicit(bool) specifier was added in ParseDecl.cpp.
- The storage of the explicit specifier was changed. the explicit specifier was stored as a boolean value in the FunctionDeclBitfields and in the DeclSpec class. now it is stored as a PointerIntPair<Expr*, 2> with a flag and a potential expression in CXXConstructorDecl, CXXDeductionGuideDecl, CXXConversionDecl and in the DeclSpec class.
- Following the AST change, Serialization, ASTMatchers, ASTComparator and ASTPrinter were adapted.
- Template instantiation was adapted to instantiate the potential expressions of the explicit(bool) specifier When instantiating their associated declaration.
- The Add*Candidate functions were adapted, they now take a Boolean indicating if the context allowing explicit constructor or conversion function and this boolean is used to remove invalid overloads that required template instantiation to be detected.
- Test for Semantic and Serialization were added.

This patch is not yet complete. I still need to check that interaction with CTAD and deduction guides is correct. and add more tests for AST operations. But I wanted first feedback.
Perhaps this patch should be spited in smaller patches, but making each patch testable as a standalone may be tricky.

Patch by Tyker

Differential Revision: https://reviews.llvm.org/D60934

llvm-svn: 359949
2019-05-04 00:09:00 +00:00
Richard Smith a6b41d7c52 CWG issue 727: Fix numerous bugs in support for class-scope explicit
specializations for variable templates.

llvm-svn: 359947
2019-05-03 23:51:38 +00:00
Owen Pan 3dcb892d2d [clang-format] Fix bug in block comment reflow that joins * and /
Fixes PR41213

Differential Revision: https://reviews.llvm.org/D61276

llvm-svn: 359943
2019-05-03 23:15:40 +00:00
Mandeep Singh Grang 85a0f8fe6c [COFF, ARM64] Fix ABI implementation of struct returns
Summary:
Related llvm patch: D60348.
Patch co-authored by Sanjin Sijaric.

Reviewers: rnk, efriedma, TomTan, ssijaric, ostannard

Reviewed By: efriedma

Subscribers: dmajor, richard.townsend.arm, ostannard, javed.absar, kristof.beyls, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D60349

llvm-svn: 359932
2019-05-03 21:12:24 +00:00
Matt Arsenault 13cf19dff0 Ensure there is stack usage in stack size warning test
r359906 broke this because the only stack usage was from a spill which
can be avoided since the only block is a return.

llvm-svn: 359918
2019-05-03 19:04:14 +00:00
Nico Weber 83c95b1ec8 Attempt to fix the clang-sphinx-docs bot after r358797
llvm-svn: 359916
2019-05-03 18:54:18 +00:00
David Blaikie 639b3d1b83 Remove else-after-return
llvm-svn: 359913
2019-05-03 18:11:31 +00:00
Gheorghe-Teodor Bercea db900e389a [CUDA][Clang][Bugfix] Add missing CUDA 9.2 case
Summary:
The bug was reported on the OpenMP-dev list:

.../obj-release/lib/clang/9.0.0/include/__clang_cuda_intrinsics.h:173:35: error: '__nvvm_shfl_sync_idx_i32' needs target feature ptx60|ptx61|ptx63|ptx64
__MAKE_SYNC_SHUFFLES(__shfl_sync, __nvvm_shfl_sync_idx_i32,

This problem occurs when trying to compile a .cu file that requires a newer ptx version (>ptx60 in this case) than ptx42.



Reviewers: tra, ABataev, caomhin

Reviewed By: tra

Subscribers: jdoerfert, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61474

llvm-svn: 359910
2019-05-03 17:59:18 +00:00
Don Hinton c242be40a1 [CommandLine] Change help output to prefix long options with `--` instead of `-`. NFC . Part 3 of 5
Summary:
By default, `parseCommandLineOptions()` will accept either a
`-` or `--` prefix for long options -- options with names longer than
a single character.

While this change does not affect behavior, it will be helpful with a
subsequent change that requires long options use the `--` prefix.

Reviewers: rnk, thopre

Reviewed By: thopre

Subscribers: thopre, cfe-commits, hiraditya, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D61269

llvm-svn: 359909
2019-05-03 17:47:29 +00:00
Dmitri Gribenko b641b914a3 Added an AST matcher for declarations that are in the `std` namespace
Reviewers: alexfh

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61480

llvm-svn: 359876
2019-05-03 12:50:00 +00:00