Commit Graph

38863 Commits

Author SHA1 Message Date
Peter Collingbourne 198fbcb817 Driver: Don't look for libc++ headers in the install directory on Android.
The NDK uses a separate set of libc++ headers in the sysroot. Any headers
in the installation directory are not going to work on Android, not least
because they use a different name for the inline namespace (std::__1 instead
of std::__ndk1).

This effectively makes it impossible to produce a single toolchain that is
capable of targeting both Android and another platform that expects libc++
headers to be installed in the installation directory, such as Mac.

In order to allow this scenario to work, stop looking for headers in the
install directory on Android.

Differential Revision: https://reviews.llvm.org/D71154
2019-12-06 18:24:23 -08:00
Richard Smith 5253d9138e [c++20] Determine whether a defaulted comparison should be deleted or
constexpr.
2019-12-06 16:32:48 -08:00
Reid Kleckner eff08f4097 Revert "[Sema][X86] Consider target attribute into the checks in validateOutputSize and validateInputSize."
This reverts commit e1578fd2b7.

It introduces a dependency on Attr.h which I am removing from
ASTContext.h.
2019-12-06 15:42:14 -08:00
Craig Topper e1578fd2b7 [Sema][X86] Consider target attribute into the checks in validateOutputSize and validateInputSize.
The validateOutputSize and validateInputSize need to check whether
AVX or AVX512 are enabled. But this can be affected by the
target attribute so we need to factor that in.

This patch copies some of the code from CodeGen to create an
appropriate feature map that we can pass to the function. Probably
need some refactoring here to share more code with Codegen. Is
there a good place to do that? Also need to support the cpu_specific
attribute as well.

Differential Revision: https://reviews.llvm.org/D68627
2019-12-06 15:30:59 -08:00
Alex Lorenz f3efd69574 [ObjC] Make sure that the implicit arguments for direct methods have been setup
This commit sets the Self and Imp declarations for ObjC method declarations,
in addition to the definitions. It also fixes
a bunch of code in clang that had wrong assumptions about when getSelfDecl() would be set:

- CGDebugInfo::getObjCMethodName and AnalysisConsumer::getFunctionName would assume that it was
  set for method declarations part of a protocol, which they never were,
  and that self would be a Class type, which it isn't as it is id for a protocol.

Also use the Canonical Decl to index the set of Direct methods so that
when calls and implementations interleave, the same llvm::Function is
used and the same symbol name emitted.

Radar-Id: rdar://problem/57661767

Patch by: Pierre Habouzit

Differential Revision: https://reviews.llvm.org/D71091
2019-12-06 14:28:28 -08:00
Artem Dergachev 040c39d50f [analyzer] Fix false positive on introspection of a block's internal layout.
When implementation of the block runtime is available, we should not
warn that block layout fields are uninitialized simply because they're
on the stack.
2019-12-06 13:24:20 -08:00
Alexey Bataev 779a180d96 [OPENMP50]Add if clause in distribute simd directive.
According to OpenMP 5.0, if clause can be used in for simd directive. If
condition in the if clause if false, the non-vectorized version of the
loop must be executed.
2019-12-06 14:49:49 -05:00
Richard Smith dbd1129724 Stop checking whether std::strong_* has ::equivalent members.
Any attempt to use these would be a bug, so we shouldn't even look for
them.
2019-12-06 11:35:41 -08:00
Matt Arsenault 2cc11941a2 clang/AMDGPU: Fix default for frame-pointer attribute
Enabling optimization should allow frame pointer elimination.
2019-12-07 00:09:10 +05:30
Alexey Bataev 543ffb4a2d [OPENMP]Reorganize OpenMP warning groups.
openmp-mapping group is a subgroup of openmp-target warning group. Also,
added global openmp group to control all other OpenMP warning groups.
2019-12-06 13:31:02 -05:00
Alexey Bataev 4db4868d7e [OPENMP]Moved warning fo mapping non-trivially copiable types into a
separate group.

Need to move this warning into a separate group to make easier to
disable this warning, if required.
2019-12-06 09:51:36 -05:00
Zahira Ammarguellat a3b2552575 Fix for PR44000. Optimization record for bytecode input missing.
Review is here:  https://reviews.llvm.org/D70691
2019-12-06 07:48:42 -05:00
Richard Smith 759909506c Fix crash if a user-defined conversion is applied in the middle of a
rewrite of an operator in terms of operator<=>.
2019-12-05 18:44:15 -08:00
Douglas Yung 757bc55f83 Tighten up CHECK lines added in a9f10ebffa to work on ARM.
On ARM platforms, the compiler generates an additional line containing `-CXXRecordDecl which is not the intended line, but preceeds the intended match causing the test to fail.
2019-12-05 18:35:08 -08:00
Saar Raz fdf80e86a5 [Concepts] Constraint Enforcement & Diagnostics
Part of the C++20 concepts implementation effort.
- Associated constraints (requires clauses, currently) are now enforced when instantiating/specializing templates and when considering partial specializations and function overloads.
- Elaborated diagnostics give helpful insight as to why the constraints were not satisfied.
Phabricator: D41569

Re-commit, after fixing some memory bugs.
2019-12-06 01:34:20 +02:00
Richard Smith b220662a45 Properly convert all declaration non-type template arguments when
forming non-type template parameter values.

This reverts commit 93cc9dddd8,
which reverted commit 11d1052785.

We now always form `&x` when forming a pointer to a function rather than
trying to use function-to-pointer decay. This matches the behavior of
the old code in this case, but not the intent as described by the
comments.
2019-12-05 14:32:36 -08:00
Adrian Prantl ce7d35988d Debug Info: Assert that location is available for cleanups
rdar://57630879

Differential Revision: https://reviews.llvm.org/D71042
2019-12-05 12:45:10 -08:00
Adrian Prantl a1a9aa17b4 Set a source location for Objective-C accessor stubs
even when there is no explicit synthesize statement.

This fixes a regression introduced in https://reviews.llvm.org/D68108
that could lead to missing debug locations in cleanup code in
synthesized Objective-C++ properties.

rdar://57630879

Differential Revision: https://reviews.llvm.org/D71084
2019-12-05 12:45:10 -08:00
cchen 47d6094d7f [OpenMP50] Add parallel master construct
Reviewers: ABataev, jdoerfert

Reviewed By: ABataev

Subscribers: rnk, jholewinski, guansong, arphaman, jfb, cfe-commits, sandoval, dreachem

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70726
2019-12-05 14:35:27 -05:00
Alexey Bataev 52812f2ade [OPENMP50]Add support for if clause for simd part in distribute parallel for simd directive.
According to OpenMP 5.0, the if clause can be applied to simd
subdirective in the combined directives.
2019-12-05 13:23:15 -05:00
Balázs Kéri a9f10ebffa [ASTImporter] Various source location and range import fixes.
Summary:
ASTImporter contained wrong or missing imports of SourceLocation
and SourceRange for some objects. At least a part of such errors
is fixed now.
Source location import fixes in namespace, enum, record,
class template specialization declarations and DeclRefExpr,
UnresolvedLookupExpr, UnresolvedMemberExpr, NestedNameSpecifierLoc.

Reviewers: martong, a.sidorin, shafik

Reviewed By: shafik

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D60499
2019-12-05 17:44:13 +01:00
Alexey Bataev 5c517a6b13 [OPENMP50]Add support for if clause for simd part in parallel master taskloop simd directive.
According to OpenMP 5.0, the if clause can be applied to simd
subdirective in the combined directives.
2019-12-05 11:32:33 -05:00
Scott Linder d96ea47c75 [AMDGPU][HIP] Improve opt-level handling
Summary:
The HIP toolchain invokes `llc` without an explicit opt-level, meaning
it always uses the default (-O2). This makes it impossible to use -O1,
for example. The HIP toolchain also coerces -Os/-Oz to -O2 even when
invoking opt, and it coerces -Og to -O2 rather than -O1.

Forward the opt-level to `llc` as well as `opt`, and only coerce levels
where it is required.

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70987
2019-12-05 11:27:12 -05:00
Alexey Bataev 853961f21a [OPENMP50]Add support for if clause for simd part in master taskloop simd directive.
According to OpenMP 5.0, the if clause can be applied to simd
subdirective in the combined directives.
2019-12-05 10:12:20 -05:00
Hans Wennborg 18b72d337e Also check /Fo when deciding on the .gcna / .gcda filename (PR44208)
Differential revision: https://reviews.llvm.org/D71012
2019-12-05 13:57:04 +01:00
Victor Lomuller 11a9bae8f6 [AST] Enable expression of OpenCL language address spaces an attribute
Summary:
Enable a way to set OpenCL language address space using attributes
in addition to existing keywords.

Signed-off-by: Victor Lomuller victor@codeplay.com

Reviewers: aaron.ballman, Anastasia

Subscribers: yaxunl, ebevhan, cfe-commits, Naghasan

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71005

Signed-off-by: Alexey Bader <alexey.bader@intel.com>
2019-12-05 12:24:06 +03:00
Melanie Blower 7f9b513847 Reapply af57dbf12e "Add support for options -frounding-math, ftrapping-math, -ffp-model=, and -ffp-exception-behavior="
Patch was reverted because https://bugs.llvm.org/show_bug.cgi?id=44048
        The original patch is modified to set the strictfp IR attribute
        explicitly in CodeGen instead of as a side effect of IRBuilder.
        In the 2nd attempt to reapply there was a windows lit test fail, the
        tests were fixed to use wildcard matching.

        Differential Revision: https://reviews.llvm.org/D62731
2019-12-05 03:48:04 -08:00
Balázs Kéri 7eafde981c [Checkers] Added support for freopen to StreamChecker.
Summary: Extend StreamChecker with a new evaluation function for API call 'freopen'.

Reviewers: NoQ, baloghadamsoftware, Szelethus, martong

Reviewed By: baloghadamsoftware, martong

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69948
2019-12-05 11:08:44 +01:00
David L. Jones 93cc9dddd8 Revert "Properly convert all declaration non-type template arguments when"
This reverts commit 11d1052785.

This change is problematic with function pointer template parameters. For
example, building libcxxabi with futexes (-D_LIBCXXABI_USE_FUTEX) produces this
diagnostic:

    In file included from .../llvm-project/libcxxabi/src/cxa_guard.cpp:15:
    .../llvm-project/libcxxabi/src/cxa_guard_impl.h:416:54: error: address of function 'PlatformThreadID' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion]
        has_thread_id_support(this->thread_id_address && GetThreadIDArg),
                                                      ~~ ^~~~~~~~~~~~~~
    .../llvm-project/libcxxabi/src/cxa_guard.cpp:38:26: note: in instantiation of member function '__cxxabiv1::(anonymous namespace)::InitByteFutex<&__cxxabiv1::(anonymous namespace)::PlatformFutexWait, &__cxxabiv1::(anonymous namespace)::PlatformFutexWake, &__cxxabiv1::(anonymous namespace)::PlatformThreadID>::InitByteFutex' requested here
      SelectedImplementation imp(raw_guard_object);
                             ^
    .../llvm-project/libcxxabi/src/cxa_guard_impl.h:416:54: note: prefix with the address-of operator to silence this warning
        has_thread_id_support(this->thread_id_address && GetThreadIDArg),
                                                         ^
                                                         &
    1 error generated.

The diagnostic is incorrect: adding the address-of operator also fails ("cannot
take the address of an rvalue of type 'uint32_t (*)()' (aka 'unsigned int
(*)()')").
2019-12-04 22:12:15 -08:00
Richard Smith 11d1052785 Properly convert all declaration non-type template arguments when
forming non-type template parameter values.
2019-12-04 18:55:24 -08:00
Richard Smith a1d2611c04 [c++17] Fix assert / wrong code when passing a noexcept pointer to
member function to a non-noexcept pointer to member non-type template
parameter.
2019-12-04 18:55:23 -08:00
Puyan Lotfi 4ef9110b8d [clang][IFS] Ignoring -Xlinker/-Xclang arguments in InterfaceStubs pass for now.
Many of the inputs to clang driver toolchain tools can be things other
than files such as -Xclang and -Xlinker arguments. For now we don't take
such tool pass-through type arguments (although having an -Xifs would be nice to
have to replace things like -emit-merged-ifs). So because for the moment
we are not doing any sort of argument pass-through, I am going to have
InterfaceStubs Merger ignore any non-file type input arguments.

Differential Revision: https://reviews.llvm.org/D70838
2019-12-04 20:03:57 -05:00
Artem Dergachev 3c50f2544f [analyzer] Fix more ObjC accessor body farms after 2073dd2d.
Fix a crash when constructing a body farm for accessors of a property
that is declared and @synthesize'd in different (but related) interfaces
with the explicit ivar syntax.

This is a follow-up for 0b58b80e.
2019-12-04 16:29:08 -08:00
Puyan Lotfi 07e445103e [clang][IFS] Adding support for new clang interface stubs decl types.
NamespaceAliasDecl UnresolvedUsingTypenameDecl CXXDeductionGuideDecl
ConstructorUsingShadowDecl

Differential Revision: https://reviews.llvm.org/D70728
2019-12-04 19:10:47 -05:00
Reid Kleckner 33f6d465d7 Revert "[OpenMP50] Add parallel master construct, by Chi Chun Chen."
This reverts commit 713dab21e2.

Tests do not pass on Windows.
2019-12-04 14:50:06 -08:00
Soumi Manna 9c29aed698 Bug 43965 - Value of _MSVC_LANG doesn't match MSVC++ VS2019 /std:c++latest mode
Summary:
The patch adds correct value of _MSVC_LANG to match with MSVC++ VS2019 /std:c++latest mode.

    Bugzilla - Bug 43965
    https://bugs.llvm.org/show_bug.cgi?id=43965

    The value for a MS specific macro differs from Microsoft starting with VS2019 in /std:c++latest mode.

    -bash-4.2$ cat msvclang.cpp
    _MSVC_LANG

    -bash-4.2$ cl /std:c++latest -E msvclang.cpp
    Microsoft (R) C/C++ Optimizing Compiler Version 19.20.27508.1 for x64
    Copyright (C) Microsoft Corporation.  All rights reserved.

    /std:c++latest is provided as a preview of language features from the latest C++
    working draft, and we're eager to hear about bugs and suggestions for improvements.
    However, note that these features are provided as-is without support, and subject
    to changes or removal as the working draft evolves. See
    https://go.microsoft.com/fwlink/?linkid=2045807 for details.

    msvclang.cpp

    201705L

    -bash-4.2$ clang-cl /std:c++latest -E  msvclang.cpp
    201704L

Reviewers: rnk

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D70996
2019-12-04 14:39:41 -08:00
Alexey Bataev 61205821ca [OPENMP50]Add support for if clause for simd part in taskloop simd
directive.

According to OpenMP 5.0, the `if` clause can be applied to simd
subdirective in the combined directive.
2019-12-04 15:50:39 -05:00
Melanie Blower 5412913631 Revert " Reapply af57dbf12e "Add support for options -frounding-math, ftrapping-math, -ffp-model=, and -ffp-exception-behavior=""
This reverts commit cdbed2dd85.
Build break on Windows (lit fail)
2019-12-04 12:21:23 -08:00
James Y Knight 90fce46fa6 Fix crash-on-invalid-code in lambda constant evaluation.
If the lambda used 'this' without without capturing it, an error was
emitted, but the constant evaluator would still attempt to lookup the
capture, and failing to find it, dereference a null pointer.

This only happens in C++17 (as that's when lambdas were made
potentially-constexpr). Therefore, I also updated the
lambda-expressions.cpp test to run in both C++14 and C++17 modes.
2019-12-04 15:12:17 -05:00
cchen 713dab21e2 [OpenMP50] Add parallel master construct, by Chi Chun Chen.
Reviewers: ABataev, jdoerfert

Reviewed By: ABataev

Subscribers: jholewinski, guansong, arphaman, jfb, cfe-commits, sandoval, dreachem

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70726
2019-12-04 14:53:17 -05:00
Melanie Blower cdbed2dd85 Reapply af57dbf12e "Add support for options -frounding-math, ftrapping-math, -ffp-model=, and -ffp-exception-behavior="
Patch was reverted because https://bugs.llvm.org/show_bug.cgi?id=44048
        The original patch is modified to set the strictfp IR attribute
        explicitly in CodeGen instead of as a side effect of IRBuilder

        Differential Revision: https://reviews.llvm.org/D62731
2019-12-04 11:32:33 -08:00
Vedant Kumar f208b70fbc Revert "[Coverage] Revise format to reduce binary size"
This reverts commit e18531595b.

On Windows, there is an error:

http://lab.llvm.org:8011/builders/sanitizer-windows/builds/54963/steps/stage%201%20check/logs/stdio

error: C:\b\slave\sanitizer-windows\build\stage1\projects\compiler-rt\test\profile\Profile-x86_64\Output\instrprof-merging.cpp.tmp.v1.o: Failed to load coverage: Malformed coverage data
2019-12-04 10:35:14 -08:00
Vedant Kumar e18531595b [Coverage] Revise format to reduce binary size
Revise the coverage mapping format to reduce binary size by:

1. Naming function records and marking them `linkonce_odr`, and
2. Compressing filenames.

This shrinks the size of llc's coverage segment by 82% (334MB -> 62MB)
and speeds up end-to-end single-threaded report generation by 10%. For
reference the compressed name data in llc is 81MB (__llvm_prf_names).

Rationale for changes to the format:

- With the current format, most coverage function records are discarded.
  E.g., more than 97% of the records in llc are *duplicate* placeholders
  for functions visible-but-not-used in TUs. Placeholders *are* used to
  show under-covered functions, but duplicate placeholders waste space.

- We reached general consensus about giving (1) a try at the 2017 code
  coverage BoF [1]. The thinking was that using `linkonce_odr` to merge
  duplicates is simpler than alternatives like teaching build systems
  about a coverage-aware database/module/etc on the side.

- Revising the format is expensive due to the backwards compatibility
  requirement, so we might as well compress filenames while we're at it.
  This shrinks the encoded filenames in llc by 86% (12MB -> 1.6MB).

See CoverageMappingFormat.rst for the details on what exactly has
changed.

Fixes PR34533 [2], hopefully.

[1] http://lists.llvm.org/pipermail/llvm-dev/2017-October/118428.html
[2] https://bugs.llvm.org/show_bug.cgi?id=34533

Differential Revision: https://reviews.llvm.org/D69471
2019-12-04 10:10:55 -08:00
Yaxun (Sam) Liu 7d0e1117c9 [HIP] Remove opencl.amdgcn.lib
Differential Revision: https://reviews.llvm.org/D70980
2019-12-04 12:39:44 -05:00
Michael Liao fa9dd410a9 [opencl] Fix address space deduction on array variables.
Summary:

- The deduced address space needs applying to its element type as well.

Reviewers: Anastasia

Subscribers: yaxunl, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70981
2019-12-04 09:37:50 -05:00
Mark Murray d3f62ceac0 [ARM][MVE][Intrinsics] Add VMULH/VRMULH intrinsics.
Summary: Add MVE VMULH/VRMULH intrinsics and unit tests.

Reviewers: simon_tatham, ostannard, dmgreen

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70948
2019-12-04 14:27:12 +00:00
Anastasia Stulova e6522a96f5 [OpenCL] Allow addr space qualifiers on lambda call expressions
The addr space qualifier can be added optionally for lambdas after
the attributes. They will alter the default addr space of lambda
call operator that is in generic address space by default for OpenCL.

Syntax:

[ captures ] ( params ) specifiers exception attr opencl_addrspace
                    -> ret { body }

Example:

[&] (int i) mutable __global { ... };

On the call into lambda a compatibility check will be performed to
determine whether address space of lambda object and its call operator
are compatible. This will follow regular addr space conversion rules
and there will be no difference to how addr spaces work in method
qualifiers.

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70242
2019-12-04 12:25:20 +00:00
Hans Wennborg 92ce2aff68 Actually delay processing DelayedDllExportClasses until the outermost class is finished (PR40006)
This was already the intention of DelayedDllExportClasses, but code such as
this would break it:

template<typename> struct Tmpl {};
struct Outer {
    struct Inner {
        __declspec(dllexport) Inner() = default;
        unsigned int x = 0;
    };
    Tmpl<Inner> y;
};

ActOnFinishCXXNonNestedClass() would get called when the instantiation of
Templ<Inner> is finished, even though the compiler is still not finished with
Outer, causing the compile fail.

This hooks into Sema::{Push,Pop}ParsingClass() to avoid calling
ActOnFinishCXXNonNestedClass() for template instantiations while a class is
being parsed.

Differential revision: https://reviews.llvm.org/D70905
2019-12-04 13:13:41 +01:00
Akira Hatanaka d8136f14f1 [CodeGen][ObjC] Emit a primitive store to store a __strong field in
ExpandTypeFromArgs

This fixes a bug in IRGen where a call to `llvm.objc.storeStrong` was
being emitted to initialize a __strong field of an uninitialized
temporary struct, which caused crashes at runtime.

rdar://problem/51807365
2019-12-03 23:44:30 -08:00
Petr Hosek 9c3f9b9c12 [Clang] Define Fuchsia C++ABI
Currently, it is a modified version of the Itanium ABI, with the only
change being that constructors and destructors return 'this'.

Differential Revision: https://reviews.llvm.org/D70575
2019-12-03 18:35:57 -08:00
Fangrui Song b0df90488c [Diagnostic][test] Remove an unneeded change to pragma_diagnostic_sections.cpp after D70638 2019-12-03 16:43:35 -08:00
Daniel Sanders 327894859c Fix `sed -e s@FOO@%/S@` and similar when there's @'s in the working directory
Jenkins sometimes starts a new working directory by appending @2 (or
incrementing the number if the @n suffix is already there). This causes
several clang tests to fail as:
  s@INPUT_DIR@%/S/Inputs@g
gets expanded to the invalid:
  s@INPUT_DIR@/path/to/workdir@2/Inputs@g
                               ~~~~~~~~~~
where the part marked with ~'s is interpreted as the flags. These are
invalid and the test fails.

Previous fixes simply exchanged the @ character for another like | but
that's just moving the problem. Address it by adding an expansion that
escapes the @ character we're using as a delimiter as well as other magic
characters in the replacement of sed's s@@@.

There's still room for expansions to cause trouble though. One I ran into
while testing this was that having a directory called foo@bar causes lots
of `CHECK-NOT: foo` directives to match. There's also things like
directories containing `\1`
2019-12-03 15:44:01 -08:00
Elizabeth Andrews 878a24ee24 Reapply "Fix crash on switch conditions of non-integer types in templates"
This patch reapplies commit 759948467e. Patch was reverted due to a
clang-tidy test fail on Windows. The test has been modified. There
are no additional code changes.

Patch was tested with ninja check-all on Windows and Linux.

Summary of code changes:

Clang currently crashes for switch statements inside a template when the
condition is a non-integer field member because contextual implicit
conversion is skipped when parsing the condition. This conversion is
however later checked in an assert when the case statement is handled.
The conversion is skipped when parsing the condition because
the field member is set as type-dependent based on its containing class.
This patch sets the type dependency based on the field's type instead.

This patch fixes Bug 40982.
2019-12-03 15:27:19 -08:00
Reid Kleckner 705a6aef35 [MS] Emit exported complete/vbase destructors
Summary:
Fixes PR44205

I checked, and deleting destructors are not affected.

Reviewers: hans

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70931
2019-12-03 14:46:32 -08:00
Vedant Kumar 859bf4d2be [Coverage] Emit a gap region to cover switch bodies
Emit a gap region beginning where the switch body begins. This sets line
execution counts in the areas between non-overlapping cases to 0.

This also removes some special handling of the first case in a switch:
these are now treated like any other case.

This does not resolve an outstanding issue with case statement regions
that do not end when a region is terminated. But it should address
llvm.org/PR44011.

Differential Revision: https://reviews.llvm.org/D70571
2019-12-03 12:35:54 -08:00
Aaron Ballman bf830b01a2 Switch to opening the temp file in binary mode
This corrects an issue where the script would write the file with the
incorrect line endings on Windows.
2019-12-03 15:31:46 -05:00
Tyker bc840b21e1 [Diagnostic] add a warning which warns about misleading indentation
Summary: Add a warning for misleading indentation similar to GCC's -Wmisleading-indentation

Reviewers: aaron.ballman, xbolva00

Reviewed By: aaron.ballman, xbolva00

Subscribers: tstellar, cfe-commits, arphaman, Ka-Ka, thakis

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70638
2019-12-03 21:21:27 +01:00
Aaron Ballman 898df29c5b Correcting the offsets within the test to fix the bots. 2019-12-03 13:21:35 -05:00
Aaron Ballman fa6c157ebe Differentiate between the presumed and actual file when dumping the AST to JSON
Currently, when dumping the AST to JSON, the presumed file is what is included
when dumping a source location. This patch changes the behavior to instead dump
the actual file, and only dump a presumed file name when it differs from the
actual file.

This also corrects an issue with the test script generator that would prevent
it from working on Windows due to file permissions issues.
2019-12-03 13:05:59 -05:00
Mariya Podchishchaeva c094e7dc4b [SYCL] Add sycl_kernel attribute for accelerated code outlining
SYCL is single source offload programming model relying on compiler to
separate device code (i.e. offloaded to an accelerator) from the code
executed on the host.

Here is code example of the SYCL program to demonstrate compiler
outlining work:

```
int foo(int x) { return ++x; }
int bar(int x) { throw std::exception("CPU code only!"); }
...
using namespace cl::sycl;
queue Q;
buffer<int, 1> a(range<1>{1024});
Q.submit([&](handler& cgh) {
  auto A = a.get_access<access::mode::write>(cgh);
  cgh.parallel_for<init_a>(range<1>{1024}, [=](id<1> index) {
    A[index] = index[0] + foo(42);
  });
}
...
```

SYCL device compiler must compile lambda expression passed to
cl::sycl::handler::parallel_for method and function foo called from this
lambda expression for an "accelerator". SYCL device compiler also must
ignore bar function as it's not required for offloaded code execution.

This patch adds the sycl_kernel attribute, which is used to mark code
passed to cl::sycl::handler::parallel_for as "accelerated code".

Attribute must be applied to function templates which parameters include
at least "kernel name" and "kernel function object". These parameters
will be used to establish an ABI between the host application and
offloaded part.

Reviewers: jlebar, keryell, Naghasan, ABataev, Anastasia, bader, aaron.ballman, rjmccall, rsmith

Reviewed By: keryell, bader

Subscribers: mgorny, OlegM, ArturGainullin, agozillon, aaron.ballman, ebevhan, Anastasia, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D60455

Signed-off-by: Alexey Bader <alexey.bader@intel.com>
2019-12-03 16:13:22 +03:00
Anastasia Stulova 980133a209 [OpenCL] Use generic addr space for lambda call operator
Since lambdas are represented by callable objects, we add
generic addr space for implicit object parameter in call
operator.

Any lambda variable declared in __constant addr space
(which is not convertible to generic) fails to compile with
a diagnostic. To support constant addr space we need to
add a way to qualify the lambda call operators.

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69938
2019-12-03 16:07:18 +00:00
Russell Gallop aedeab7f85 [Support] Add ProcName to TimeTraceProfiler
This was hard-coded to "clang". This change allows it to to be used on
processes other than clang (such as lld).

This gets reported as clang-10 on Linux and clang.exe on Windows so
adapted test to accommodate this.

Differential Revision: https://reviews.llvm.org/D70950
2019-12-03 13:04:27 +00:00
Sven van Haastregt 6713670b17 [OpenCL] Fix mangling of single-overload builtins
Commit 9a8d477a0e ("[OpenCL] Add builtin function attribute
handling", 2019-11-05) stopped Clang from mangling single-overload
builtins, which is incorrect.
2019-12-03 11:09:16 +00:00
Kadir Cetinkaya 01a26fa74a
[clang][CodeGen] Make use of cc1 instead of clang in the tests 2019-12-03 12:02:26 +01:00
Sourabh Singh Tomar f1e3988aa6 Recommit "[DWARF5]Addition of alignment atrribute in typedef DIE."
This revision is revised to update Go-bindings and Release Notes.

The original commit message follows.

This patch, adds support for DW_AT_alignment[DWARF5] attribute, to be emitted with typdef DIE.
When explicit alignment is specified.

Patch by Awanish Pandey <Awanish.Pandey@amd.com>

Reviewers: aprantl, dblaikie, jini.susan.george, SouraVX, alok,
deadalinx

Differential Revision: https://reviews.llvm.org/D70111
2019-12-03 09:51:43 +05:30
Alex Lorenz 389530524b [clang-scan-deps] do not skip empty #if/#elif in the minimizer to avoid missing `__has_include` dependencies
This patch makes the minimizer more conservative to avoid missing dependency files that are brought in by __has_include
PP expressions that occur in a condition of an #if/#elif that was previously skipped. The __has_include PP expressions
can be used in an #if/#elif either directly, or through macro expansion, so we can't detect them at the time of minimization.

Differential Revision: https://reviews.llvm.org/D70936
2019-12-02 18:47:22 -08:00
Reid Kleckner 536cedaecb FileCheck IR output for blockaddress in new test
Minor improvement to a test added in 1ac700cdef
2019-12-02 15:05:50 -08:00
Thomas Preud'homme 717140a0dc [clang test] Do not assume default target
Summary:
clang test Driver/darwin-opt-record.c assumes the default target is
x86_64 by its uses of the -arch x86_64 and -arch x86_64h and thus fail
on systems where it is not the case. Adding a target
x86_64-apple-darwin10 reveals another problem: the driver refuses 2
-arch for an assembly output so this commit also changes the output to
be an object file.

Reviewers: thegameg

Reviewed By: thegameg

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70748
2019-12-02 22:57:30 +00:00
David Green 1d4587346f [AArch64] Attempt to fixup test line. NFC
The test is complaining on some of the builders. This attempts to
adjust the run line to be more line the others in the same folder, using
clang_cc1 as opposed to the driver.
2019-12-02 19:30:54 +00:00
Alexey Bataev 478541a6da [OPENMP]Fix PR44133: Emit definitions of used constructors/functions.
Need to fully rebuild the initializer/combiner when instatiating the
declare reduction constrcut to properly emit used functions.
2019-12-02 14:07:29 -05:00
Tyker 9ec6d71211 [clang][modules] Add support for merging lifetime-extended temporaries
Summary: Add support for merging lifetime-extended temporaries

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: xbolva00, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70190
2019-12-02 19:55:13 +01:00
stevewan 3ebfab7095 Add AIX assembler support
Summary:
A skeleton of AIX toolchain and system linker support has been introduced in D68340, and this is a follow on patch to it.
This patch adds support to system assembler invocation to the AIX toolchain.

Reviewers: daltenty, hubert.reinterpretcast, jasonliu, Xiangling_L, dlj

Reviewed By: daltenty, hubert.reinterpretcast

Subscribers: wuzish, nemanjai, kbarton, jfb, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69620
2019-12-02 11:29:36 -05:00
Simon Tatham d173fb5d28 [ARM,MVE] Add intrinsics to deal with predicates.
Summary:
This commit adds the `vpselq` intrinsics which take an MVE predicate
word and select lanes from two vectors; the `vctp` intrinsics which
create a tail predicate word suitable for processing the first m
elements of a vector (e.g. in the last iteration of a loop); and
`vpnot`, which simply complements a predicate word and is just
syntactic sugar for the `~` operator.

The `vctp` ACLE intrinsics are lowered to the IR intrinsics we've
already added (and which D70592 just reorganized). I've filled in the
missing isel rule for VCTP64, and added another set of rules to
generate the predicated forms.

I needed one small tweak in MveEmitter to allow the `unpromoted` type
modifier to apply to predicates as well as integers, so that `vpnot`
doesn't pointlessly convert its input integer to an `<n x i1>` before
complementing it.

Reviewers: ostannard, MarkMurrayARM, dmgreen

Reviewed By: dmgreen

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70485
2019-12-02 16:20:30 +00:00
Victor Campos dcf11c5e86 [ARM][AArch64] Complex addition Neon intrinsics for Armv8.3-A
Summary:
Add support for vcadd_* family of intrinsics. This set of intrinsics is
available in Armv8.3-A.

The fp16 versions require the FP16 extension, which has been available
(opt-in) since Armv8.2-A.

Reviewers: t.p.northover

Reviewed By: t.p.northover

Subscribers: t.p.northover, kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70862
2019-12-02 14:38:39 +00:00
Sven van Haastregt 6236496561 [OpenCL] Fix address space for implicit conversion (PR43145)
Clang was creating a DerivedToBase ImplicitCastExpr that was also
casting between address spaces as part of the second step in the
standard conversion sequence.  Defer the address space conversion to
the third step in the sequence instead, such that we get a separate
ImplicitCastExpr for the address space conversion.

Differential Revision: https://reviews.llvm.org/D70605
2019-12-02 14:20:15 +00:00
Mark Murray 510792a2e0 [ARM][MVE][Intrinsics] Add VMINQ/VMAXQ/VMINNMQ/VMAXNMQ intrinsics.
Summary: Add VMINQ/VMAXQ/VMINNMQ/VMAXNMQ intrinsics and their predicated versions. Add unit tests.

Subscribers: kristof.beyls, hiraditya, dmgreen, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70829
2019-12-02 11:18:53 +00:00
Tyker ae5484540f Revert "[clang][modules] Add support for merging lifetime-extended temporaries"
This reverts commit a3cbe1a202.
2019-12-01 22:38:31 +01:00
Tyker a3cbe1a202 [clang][modules] Add support for merging lifetime-extended temporaries
Summary: Add support for merging lifetime-extended temporaries

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: xbolva00, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70190
2019-12-01 21:28:48 +01:00
Tyker 486d1a5358 Revert "[clang][modules] Add support for merging lifetime-extended temporaries"
This reverts commit 85c7438477.
2019-12-01 11:58:14 +01:00
Tyker 85c7438477 [clang][modules] Add support for merging lifetime-extended temporaries
Summary: Add support for merging lifetime-extended temporaries

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: xbolva00, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70190
2019-11-30 23:09:11 +01:00
Tyker 3f4b70c79e Revert "[clang][modules] Add support for merging lifetime-extended temporaries"
This reverts commit 3c7f6b4396.
2019-11-30 17:52:26 +01:00
Tyker 3c7f6b4396 [clang][modules] Add support for merging lifetime-extended temporaries
Summary: Add support for merging lifetime-extended temporaries

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: xbolva00, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70190
2019-11-30 16:42:33 +01:00
Carey Williams 76fd58d0fe Revert "[ARM] Allocatable Global Register Variables for ARM"
This reverts commit 2d739f98d8.
2019-11-29 17:01:05 +00:00
Alexandre Ganea 3b0b7536a3 On Windows, fix fuse-ld.c test when lld is provided explictly in -DCMAKE_LINKER 2019-11-29 11:28:49 -05:00
Simon Atanasyan f4d32ae75b [mips] Check that features required by built-ins are enabled
Now Clang does not check that features required by built-in functions
are enabled. That causes errors in the backend reported in PR44018.

This patch fixes this bug by checking that required features
are enabled.

This should fix PR44018.

Differential Revision: https://reviews.llvm.org/D70808
2019-11-29 00:23:00 +03:00
Miloš Stojanović ed864745c9 [OpenMP][test] Fix test on MIPS-based buildbots
On MIPS `zeroext` or `signext` can appear in the output.

Differential Revision: https://reviews.llvm.org/D70820
2019-11-28 16:18:55 +01:00
Richard Smith 789a7aa37d Properly disambiguate between array declarators and array subscript expressions. 2019-11-27 17:54:26 -08:00
Johannes Altmanninger 1ac700cdef [CodeGen] Fix clang crash on aggregate initialization of array of labels
Summary: Fix PR43700

The ConstantEmitter in AggExprEmitter::EmitArrayInit was initialized
with the CodeGenFunction set to null, which caused the crash.
Also simplify another call, and make the CGF member a const pointer
since it is public but only assigned in the constructor.

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70302
2019-11-28 00:59:25 +01:00
Dávid Bolvanský 549ff601f0 Try to reenable -Wdeprecated-copy under -Wextra 2019-11-27 22:36:51 +01:00
Nandor Licker f584f04dab [ConstExprPreter] Removed the flag forcing the use of the interpreter
Summary:
Removed the ```-fforce-experimental-new-constant-interpreter flag```, leaving
only the ```-fexperimental-new-constant-interpreter``` one. The interpreter
now always emits an error on an unsupported feature.

Allowing the interpreter to bail out would require a mapping from APValue to
interpreter memory, which will not be necessary in the final version. It is
more sensible to always emit an error if the interpreter fails.

Reviewers: jfb, Bigcheese, rsmith, dexonsmith

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70071
2019-11-27 20:07:19 +00:00
Roman Lebedev b98a0c7f6c
[clang][CodeGen] Implicit Conversion Sanitizer: handle increment/decrement (PR44054)(take 2)
Summary:
Implicit Conversion Sanitizer is *almost* feature complete.
There aren't *that* much unsanitized things left,
two major ones are increment/decrement (this patch) and bit fields.

As it was discussed in
[[ https://bugs.llvm.org/show_bug.cgi?id=39519 | PR39519 ]],
unlike `CompoundAssignOperator` (which is promoted internally),
or `BinaryOperator` (for which we always have promotion/demotion in AST)
or parts of `UnaryOperator` (we have promotion/demotion but only for
certain operations), for inc/dec, clang omits promotion/demotion
altogether, under as-if rule.

This is technically correct: https://rise4fun.com/Alive/zPgD
As it can be seen in `InstCombineCasts.cpp` `canEvaluateTruncated()`,
`add`/`sub`/`mul`/`and`/`or`/`xor` operators can all arbitrarily
be extended or truncated:
901cd3b3f6/llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp (L1320-L1334)

But that has serious implications:
1. Since we no longer model implicit casts, do we pessimise
   their AST representation and everything that uses it?
2. There is no demotion, so lossy demotion sanitizer does not trigger :]

Now, i'm not going to argue about the first problem here,
but the second one **needs** to be addressed. As it was stated
in the report, this is done intentionally, so changing
this in all modes would be considered a penalization/regression.
Which means, the sanitization-less codegen must not be altered.

It was also suggested to not change the sanitized codegen
to the one with demotion, but i quite strongly believe
that will not be the wise choice here:
1. One will need to re-engineer the check that the inc/dec was lossy
   in terms of `@llvm.{u,s}{add,sub}.with.overflow` builtins
2. We will still need to compute the result we would lossily demote.
   (i.e. the result of wide `add`ition/`sub`traction)
3. I suspect it would need to be done right here, in sanitization.
   Which kinda defeats the point of
   using `@llvm.{u,s}{add,sub}.with.overflow` builtins:
   we'd have two `add`s with basically the same arguments,
   one of which is used for check+error-less codepath and other one
   for the error reporting. That seems worse than a single wide op+check.
4. OR, we would need to do that in the compiler-rt handler.
   Which means we'll need a whole new handler.
   But then what about the `CompoundAssignOperator`,
   it would also be applicable for it.
   So this also doesn't really seem like the right path to me.
5. At least X86 (but likely others) pessimizes all sub-`i32` operations
   (due to partial register stalls), so even if we avoid promotion+demotion,
   the computations will //likely// be performed in `i32` anyways.

So i'm not really seeing much benefit of
not doing the straight-forward thing.

While looking into this, i have noticed a few more LLVM middle-end
missed canonicalizations, and filed
[[ https://bugs.llvm.org/show_bug.cgi?id=44100 | PR44100 ]],
[[ https://bugs.llvm.org/show_bug.cgi?id=44102 | PR44102 ]].

Those are not specific to inc/dec, we also have them for
`CompoundAssignOperator`, and it can happen for normal arithmetics, too.
But if we take some other path in the patch, it will not be applicable
here, and we will have most likely played ourselves.

TLDR: front-end should emit canonical, easy-to-optimize yet
un-optimized code. It is middle-end's job to make it optimal.

I'm really hoping reviewers agree with my personal assessment
of the path this patch should take..

This originally landed in 9872ea4ed1
but got immediately reverted in cbfa237892
because the assertion was faulty. That fault ended up being caused
by the enum - while there will be promotion, both types are unsigned,
with same width. So we still don't need to sanitize non-signed cases.
So far. Maybe the assert will tell us this isn't so.

Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=44054 | PR44054 ]].
Refs. https://github.com/google/sanitizers/issues/940

Reviewers: rjmccall, erichkeane, rsmith, vsk

Reviewed By: erichkeane

Subscribers: mehdi_amini, dexonsmith, cfe-commits, #sanitizers, llvm-commits, aaron.ballman, t.p.northover, efriedma, regehr

Tags: #llvm, #clang, #sanitizers

Differential Revision: https://reviews.llvm.org/D70539
2019-11-27 21:52:41 +03:00
Gabor Horvath bcd0798c47 [LifetimeAnalysis] Fix PR44150
References need somewhat special treatment. While copying a gsl::Pointer
will propagate the points-to set, creating an object from a reference
often behaves more like a dereference operation.

Differential Revision: https://reviews.llvm.org/D70755
2019-11-27 09:15:14 -08:00
Mark Murray a048bf87fb [ARM][MVE][Intrinsics] Add MVE VAND/VORR/VORN/VEOR/VBIC intrinsics. Add unit tests.
Summary: Add MVE VAND/VORR/VORN/VEOR/VBIC intrinsics. Add unit tests.

Reviewers: simon_tatham, ostannard, dmgreen

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70547
2019-11-27 16:52:05 +00:00
Mark Murray e8a8dbe9c4 [ARM][MVE][Intrinsics] Add MVE VMUL intrinsics. Remove annoying "t1" from VMUL* instructions. Add unit tests.
Summary: Add MVE VMUL intrinsics. Remove annoying "t1" from VMUL* instructions. Add unit tests.

Reviewers: simon_tatham, ostannard, dmgreen

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70546
2019-11-27 16:52:05 +00:00
Mark Murray f4bba07b87 [ARM][MVE][Intrinsics] Add MVE VABD intrinsics. Add unit tests.
Summary: Add MVE VABD intrinsics. Add unit tests.

Reviewers: simon_tatham, ostannard, dmgreen

Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70545
2019-11-27 16:52:04 +00:00
Alexey Bataev f59614d906 [OPENMP50]Add if clause in parallel for simd directive.
According to OpenMP 5.0, if clause can be used in parallel for simd directive. If condition in the if clause if false, the non-vectorized version of the
loop must be executed.
2019-11-27 09:56:25 -05:00
Roman Lebedev cbfa237892
Revert "[clang][CodeGen] Implicit Conversion Sanitizer: handle increment/decrement (PR44054)"
The asssertion that was added does not hold,
breaks on test-suite/MultiSource/Applications/SPASS/analyze.c
Will reduce the testcase and revisit.

This reverts commit 9872ea4ed1, 870f3542d3.
2019-11-27 17:05:21 +03:00
David Green 9f15fcc271 [ARM] Replace arm_neon_vqadds with sadd_sat
This replaces the A32 NEON vqadds, vqaddu, vqsubs and vqsubu intrinsics
with the target independent sadd_sat, uadd_sat, ssub_sat and usub_sat.
This helps generate vqadds from standard IR nodes, which might be
produced from the vectoriser. The old variants are removed in the
process.

Differential Revision: https://reviews.llvm.org/D69350
2019-11-27 13:32:29 +00:00
Roman Lebedev 870f3542d3
[CodeGen][UBSan] Relax newly-added verbose sanitization tests for inc/dec
In particular, don't hardcode the signature of the handler:
it takes src filepath so the length of buffers will not match,
2019-11-27 16:05:34 +03:00
Anastasia Stulova a29aa47106 [OpenCL] Move addr space deduction to Sema.
In order to simplify implementation we are moving add space
deduction into Sema while constructing variable declaration
and on template instantiation. Pointee are deduced to generic
addr space during creation of types.

This commit also
- fixed addr space dedution for auto type;
- factors out in a separate helper function OpenCL specific
  logic from type diagnostics in var decl.

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65744
2019-11-27 12:44:42 +00:00