Commit Graph

85288 Commits

Author SHA1 Message Date
Albion Fung ed66df6705 test commit 2020-08-10 21:18:36 -04:00
Richard Smith 0fd3d379e2 Improve diagnostic for an expression that's not constant because it uses
the address of a constexpr local variable.

Suggest adding 'static' to give the constexpr local variable a constant
address.
2020-08-10 17:03:19 -07:00
Yaxun (Sam) Liu fb04d7b4a6 [CUDA][HIP] Do not externalize implicit constant static variable
Differential Revision: https://reviews.llvm.org/D85686
2020-08-10 19:02:49 -04:00
Richard Smith 09517a9068 Add regression test from PR46487.
The underlying crash here has already been fixed, presumably by ongoing
work on error recovery.
2020-08-10 15:55:27 -07:00
Dávid Bolvanský 4b59dc77dc [Diagnostics] Ignore structs and long text for -Wstring-concatenation 2020-08-11 00:49:58 +02:00
Nick Desaulniers 05d74dbc3b python bindings: fix DeprecationWarning
Fixes observed warning running `ninja check-all`:
llvm-project/clang/bindings/python/tests/cindex/test_diagnostics.py💯
DeprecationWarning: Please use assertRegex instead.
  self.assertRegexpMatches(children[0].spelling

Looks like unittest.assertRegexpMatches has been deprecated in favor of
unittest.assertRegex since Python 3.2, according to:
https://docs.python.org/3/library/unittest.html#deprecated-aliases

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D85692
2020-08-10 15:25:23 -07:00
Johannes Doerfert fa5d22a045 [OpenMP][NFC] Reuse OMPIRBuilder `struct ident_t` handling in Clang
Replace the `ident_t` handling in Clang with the methods offered by the
OMPIRBuilder. This cuts down on the clang code as well as the
differences between the two, making further transitions easier. Tests
have changed but there should not be a real functional change. The most
interesting difference is probably that we stop generating local ident_t
allocations for now and just use globals. Given that this happens only
with debug info, the location part of the `ident_t` is probably bigger
than the test anyway. As the location part is already a global, we can
avoid the allocation, memcpy, and store in favor of a constant global
that is slightly bigger. This can be revisited if there are
complications.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D80735
2020-08-10 17:13:26 -05:00
Nick Desaulniers 4f2ad15db5 [Clang] implement -fno-eliminate-unused-debug-types
Fixes pr/11710.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

Resubmit after breaking Windows and OSX builds.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D80242
2020-08-10 15:08:48 -07:00
Dávid Bolvanský b2c9b631bb [Diagnostics] Move -Wstring-concatenation to -Wextra 2020-08-10 23:36:33 +02:00
Artem Belevich 9c8ae40860 [ARM] Speed up arm-cortex-cpus.c test
Trailing wildcard regex searches greedily continue searching through the whole
input and make the test unnecessarily slow.

Using equivalent plain text partial match speeds up the test execution time from
~35s to ~12s.

Differential Revision: https://reviews.llvm.org/D85575
2020-08-10 14:27:19 -07:00
Dávid Bolvanský 62223ff137 [Diagnostics] Avoid false positives with -Wstring-concatenation 2020-08-10 23:05:01 +02:00
Alexandre Ganea a3036b3863 Re-Re-land: [CodeView] Add full repro to LF_BUILDINFO record
This patch adds the missing information to the LF_BUILDINFO record, which allows for rebuilding a .CPP without any external dependency but the .OBJ itself (other than the compiler).

Some external tools that we are using (Recode, Live++) are extracting the information to reproduce a build without any knowledge of the build system. The LF_BUILDINFO stores a full path to the compiler, the PWD (CWD at program startup), a relative or absolute path to the TU, and the full CC1 command line. The command line needs to be freestanding (not depend on any environment variables). In the same way, MSVC doesn't store the provided command-line, but an expanded version (somehow their equivalent of CC1) which is also freestanding.

For more information see PR36198 and D43002.

Differential Revision: https://reviews.llvm.org/D80833
2020-08-10 13:36:30 -04:00
Adam Czachorowski 4061d9e42c [clangd] Fix crash-bug in preamble indexing when using modules.
Summary:
When preamble contains #undef, indexing code finds the matching #define
and uses that during indexing. However, it would only look for local
definitions. If the macro was defined in a module, MacroInfo
would be nullptr and clangd would crash.

This change makes clangd ignore any #undef without a matching #define
inside the same TU.

The indexing of macros happens for preamble only, so then #undef must be
in the preamble, which is why we need two .h files in a test.

Note that clangd is currently not ready for module support, but this
brings us one step closer.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D80525
2020-08-10 18:42:57 +02:00
Adam Czachorowski e2d61ae573 Correctly set CompilingPCH in PrecompilePreambleAction.
This fixes a crash bug in clangd when used with modules. ASTWriter would
end up writing references to submodules into the PCH file, but upon
reading the submodules would not exists and
HeaderFileInfoTrait::ReadData would crash.

Differential Revision: https://reviews.llvm.org/D85532
2020-08-10 17:49:23 +02:00
Eduardo Caldas f9500cc487 [SyntaxTree] Expand support for `NestedNameSpecifier`
Summary:
We want NestedNameSpecifier syntax nodes to be generally supported, not
only for `DeclRefExpr` and `DependentScopedDeclRefExpr`.

To achieve this we:
* Use the `RecursiveASTVisitor`'s API to traverse
`NestedNameSpecifierLoc`s and automatically create its syntax nodes
* Add links from the `NestedNameSpecifierLoc`s to their syntax nodes.

In this way, from any semantic construct that has a `NestedNameSpecifier`,
we implicitly generate its syntax node via RAV and we can easily access
this syntax node via the links we added.
2020-08-10 15:47:20 +00:00
Krzysztof Parzyszek 7406eb4f6a [Hexagon] Avoid creating an empty target feature
If the CPU string is empty, the target feature map may end up having
an empty string inserted to it. The symptom of the problem is a warning
message:
  '+' is not a recognized feature for this target (ignoring feature)
Also, the target-features attribute in the module will have an empty
string in it.
2020-08-10 10:37:24 -05:00
Michael Liao c7b683c126 [PGO][CUDA][HIP] Skip generating profile on the device stub and wrong-side functions.
- Skip generating profile data on `__global__` function in the host
  compilation. It's a host-side stub function only and don't have
  profile instrumentation generated on the real function body. The extra
  profile data results in the malformed instrumentation profile data.
- Skip generating region mapping on functions in the wrong-side, i.e.,
  + For the device compilation, skip host-only functions; and,
  + For the host compilation, skip device-only functions (including
    `__global__` functions.)
- As the device-side profiling is not ready yet, only host-side profile
  code generation is checked.

Differential Revision: https://reviews.llvm.org/D85276
2020-08-10 11:01:46 -04:00
Shuhong Liu b129c9d81a Author: Shuhong Liu <shuhong.liu@ibm.com>
Date:   Mon Aug 10 10:31:50 2020 +0300

    [AIX][Clang][Driver] Generate reference to the C++ library on the link step

    Have the linker find libc++ on its search path by adding -lc++.

    Reviewed by: daltenty, hubert.reinterpretcast, stevewan

    Differential Revision: https://reviews.llvm.org/D85315
2020-08-10 10:27:04 -04:00
Xiangling Liao 6ef801aa6b [AIX] Static init frontend recovery and backend support
On the frontend side, this patch recovers AIX static init implementation to
use the linkage type and function names Clang chooses for sinit related function.

On the backend side, this patch sets correct linkage and function names on aliases
created for sinit/sterm functions.

Differential Revision: https://reviews.llvm.org/D84534
2020-08-10 10:10:49 -04:00
Eduardo Caldas fdbd599653 [SyntaxTree] Implement `NestedNameSpecifier` using the `List` base API 2020-08-10 13:43:21 +00:00
Łukasz Krawczyk 5f104a8099 [clang-format] Add space between method modifier and a tuple return type in C#
"public (string name, int age) methodTuple() {}" is now properly spaced

Patch by lukaszkrawczyk@google.com

Reviewed By: jbcoe, krasimir

Differential Revision: https://reviews.llvm.org/D85016
2020-08-10 14:00:33 +01:00
Eduardo Caldas a90c78ac52 [SyntaxTree] Implement the List construct.
We defined a List construct to help with the implementation of list-like
grammar rules. This is a first implementation of this API.

Differential Revision: https://reviews.llvm.org/D85295
2020-08-10 10:32:28 +00:00
Haojian Wu 626d0f5818 [Concepts] Dump template arguments for immediately declared constraint.
The template arguments were dumped as part of the TemplateTypeParmDecl, which
was incorrect.

Differential Revision: https://reviews.llvm.org/D85282
2020-08-10 09:11:55 +02:00
Nathan Ridge b1c7f84643 [clang] Allow DynTypedNode to store a TemplateArgumentLoc
The patch also adds a templateArgumentLoc() AST matcher.

Differential Revision: https://reviews.llvm.org/D85621
2020-08-10 03:09:18 -04:00
Richard Smith a4ca710d9c More cleanup after removing the ability to reference a dependent
VarTemplateSpecializationDecl.
2020-08-09 23:40:22 -07:00
Richard Smith 617007240c Improve modeling of variable template specializations with dependent
arguments.

Don't build a variable template specialization declaration until its
scope and template arguments are non-dependent.

No functionality change intended, but the AST representation is now more
consistent with how we model other templates.
2020-08-09 23:22:26 -07:00
Juneyoung Lee ef018cb65c [BuildLibCalls] Add noundef to standard I/O functions
This patch adds noundef to return value and arguments of standard I/O functions.
With this patch, passing undef or poison to the functions becomes undefined
behavior in LLVM IR. Since undef/poison is lowered from operations having UB in C/C++,
passing undef to them was already UB in source.

With this patch, the functions cannot return undef or poison anymore as well.
According to C17 standard, ungetc/ungetwc/fgetpos/ftell can generate unspecified
value; 3.19.3 says unspecified value is a valid value of the relevant type,
and using unspecified value is unspecified behavior, which is not UB, so it
cannot be undef (using undef is UB when e.g. it is used at branch condition).

— The value of the file position indicator after a successful call to the ungetc function for a text stream, or the ungetwc function for any stream, until all pushed-back characters are read or discarded (7.21.7.10, 7.29.3.10).
— The details of the value stored by the fgetpos function (7.21.9.1).
— The details of the value returned by the ftell function for a text stream (7.21.9.4).

In the long run, most of the functions listed in BuildLibCalls should have noundefs; to remove redundant diffs which will anyway disappear in the future, I added noundef to a few more non-I/O functions as well.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D85345
2020-08-10 10:58:25 +09:00
Brad Smith f5fdb6141c Re-enable OpenBSD PowerPC64 tests. 2020-08-09 20:52:43 -04:00
Brad Smith 92e82a2890 int64_t and intmax_t are always (signed) long long on OpenBSD. 2020-08-09 19:43:16 -04:00
Dávid Bolvanský eeb7c496e3 [AST] Fixed string list in test 2020-08-09 23:17:48 +02:00
Dávid Bolvanský 9658647d72 [AST] Fixed string concatenation warnings 2020-08-09 23:09:19 +02:00
Gousemoodhin Nadaf 898880fe4e [clang] Fix typo in comment
In the handleIntToFloatConversion() function, 6th parameter is ConvertFloat, 7th parameter is ConvertInt.

Reviewed By: njames93, xbolva00

Differential Revision: https://reviews.llvm.org/D85568
2020-08-09 21:04:00 +02:00
Dávid Bolvanský 975467e4aa [Diagnostics] Handle string concat pattern and avoid false positives 2020-08-09 16:02:41 +02:00
Dávid Bolvanský 04a23f1fe0 [Diagnostics] Turn string concat warning to avoid false positives 2020-08-09 12:22:29 +02:00
Petr Hosek a4d78d23c5 Revert "[CMake] Simplify CMake handling for zlib"
This reverts commit ccbc1485b5 which
is still failing on the Windows MLIR bots.
2020-08-08 17:08:23 -07:00
Petr Hosek ccbc1485b5 [CMake] Simplify CMake handling for zlib
Rather than handling zlib handling manually, use find_package from CMake
to find zlib properly. Use this to normalize the LLVM_ENABLE_ZLIB,
HAVE_ZLIB, HAVE_ZLIB_H. Furthermore, require zlib if LLVM_ENABLE_ZLIB is
set to YES, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This is a reland of abb0075 with all followup changes and fixes that
should address issues that were reported in PR44780.

Differential Revision: https://reviews.llvm.org/D79219
2020-08-08 16:44:08 -07:00
Brad Smith f4aba9d76c Backout a test that is dependent on an uncommited diff. Fix another. 2020-08-08 18:39:43 -04:00
Brad Smith 430db35bf2 fix typo 2020-08-08 17:58:13 -04:00
Brad Smith 4eb4ebf76a Hook up OpenBSD 64-bit PowerPC support 2020-08-08 17:51:19 -04:00
Simon Pilgrim 090f9d5a55 Fix MSVC "not all control paths return a value" warning. NFC. 2020-08-08 19:12:11 +01:00
Brad Smith cd5ab56bc4 Change the default target CPU for OpenBSD/i386 to i586 2020-08-08 13:49:45 -04:00
Dávid Bolvanský 6cd23558d3 [Clang] Fixed buildboit failure; bot defaults to older C++ standard 2020-08-08 19:37:50 +02:00
Dávid Bolvanský 0fef780aa7 [Clang] Avoid whitespace in fixit note 2020-08-08 19:34:07 +02:00
Dávid Bolvanský dc096a66cb [Diagnostics] Diagnose missing comma in string array initialization
Motivation (from PR37674):

const char *ss[] = {
  "foo", "bar",
  "baz", "qux"  // <-- Missing comma!
  "abc", "xyz"
  };

This kind of bug was recently also found in LLVM codebase (see PR47030).

Solves PR47038, PR37674

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D85545
2020-08-08 19:24:30 +02:00
Richard Smith fb943696cb PR47025, PR47043: Diagnose unexpanded parameter packs in concept
declarations and requires-expressions.
2020-08-07 18:19:39 -07:00
Nick Desaulniers abb9bf4bcf Revert "[Clang] implement -fno-eliminate-unused-debug-types"
This reverts commit e486921fd6.

Breaks windows builds and osx builds.
2020-08-07 16:11:41 -07:00
Nick Desaulniers 73413d266a Revert "fix windows build for D80242"
This reverts commit cbd8ec9370.
2020-08-07 16:11:26 -07:00
cchen 3adc9aeb25 [OpenMP 5.0] Fix PR-45212: Shouldn't error out while using overloaded operator for map clause
LValue map checker should handle CXXOperatorCallExpr

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D85563
2020-08-07 18:07:48 -05:00
Nick Desaulniers cbd8ec9370 fix windows build for D80242 2020-08-07 14:59:35 -07:00
Nick Desaulniers e486921fd6 [Clang] implement -fno-eliminate-unused-debug-types
Fixes pr/11710.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D80242
2020-08-07 14:13:48 -07:00