Commit Graph

88762 Commits

Author SHA1 Message Date
Florian Hahn 7ca4dd8217 [Clang] Extend test coverage for -f[no-]finite-loops options.
Extend test coverage by checking various standard versions with
-f[no-]finite-loops. Suggested as part of D96418.
2021-04-07 13:15:49 +01:00
serge-sans-paille 6951b72334 [clang] Speedup line offset mapping computation
Clang spends a decent amount of time in the LineOffsetMapping::get(...)
function. This function used to be vectorized (through SSE2) then the
optimization got dropped because the sequential version was on-par performance
wise.

This provides an optimization of the sequential version that works on a word at
a time, using (documented) bithacks to provide a portable vectorization.

When preprocessing the sqlite amalgamation, this yields a sweet 3% speedup.

Differential Revision: https://reviews.llvm.org/D99409
2021-04-07 14:04:32 +02:00
Balazs Benics f0e102c1a3 [analyzer][NFC] Add tests for extents
If we allocate memory, the extent of the MemRegion will be the symbolic
value of the size parameter. This way, if that symbol gets constrained,
the extent will be also constrained.

This test demonstrates that the extent is indeed the same symbol.

Reviewed By: NoQ

Differential Revision: https://reviews.llvm.org/D99959
2021-04-07 13:43:19 +02:00
Valeriy Savchenko 77f1e096e8 [-Wcompletion-handler] Don't recognize init methods as conventional
rdar://75704162

Differential Revision: https://reviews.llvm.org/D99601
2021-04-07 13:50:01 +03:00
Valeriy Savchenko 4821c15691 [analyzer] Fix body farm for Obj-C++ properties
When property is declared in a superclass (or in a protocol),
it still can be of CXXRecord type and Sema could've already
generated a body for us.  This patch joins two branches and
two ways of acquiring IVar in order to reuse the existing code.
And prevent us from generating l-value to r-value casts for
C++ types.

rdar://67416721

Differential Revision: https://reviews.llvm.org/D99194
2021-04-07 13:44:43 +03:00
Utkarsh Saxena cd824a48cc
[clang][Syntax] Handle invalid source range in expandedTokens.
Differential Revision: https://reviews.llvm.org/D99934
2021-04-07 11:19:01 +02:00
Sven van Haastregt 35bc7569f8 [OpenCL] Add as_size/ptrdiff/intptr/uintptr_t operators
size_t and friends are built-in scalar data types and s6.4.4.2 of the
OpenCL C Specification says the as_type() operator must be available
for these data types.

Differential Revision: https://reviews.llvm.org/D98959
2021-04-07 10:16:41 +01:00
Roman Lebedev 2829094a8e
Reland [InstCombine] Fold `((X - Y) - Z)` to `X - (Y + Z)` (PR49858)
This reverts commit a547b4e26b,
relanding commit 31d219d299,
which was reverted because there was a conflicting inverse transform,
which was causing an endless combine loop, which has now been adjusted.

Original commit message:

https://alive2.llvm.org/ce/z/67w-wQ

We prefer `add`s over `sub`, and this particular xform
allows further folds to happen:

Fixes https://bugs.llvm.org/show_bug.cgi?id=49858
2021-04-07 12:06:25 +03:00
Thomas Preud'homme e018698bec [clang, test] Fix use of undef FileCheck var
Clang test CodeGen/libcalls.c contains CHECK-NOT directives using a
variable defined in a CHECK directive with a different prefix never
enabled together, therefore causing the variable to be undefined in that
CHECK-NOT.

The intent of the test is to check that some declaration do not have the
same attribute as when compiling the test without -fmath-errno. This
commits instead changes all CHECK-NOT to CHECK directive, checking that
they all use the same attribute. It also adds an extra CHECK for that
prefix to check the expected attributes these functions should have when
compiling with -fmath-errno.

Reviewed By: rjmccall

Differential Revision: https://reviews.llvm.org/D99898
2021-04-07 09:43:58 +01:00
Roman Lebedev 0aa0458f14
[CGCall] Annotate `this` argument with alignment
As it is being noted in D99249, lack of alignment information on `this`
has been preventing LICM from happening.

For some time now, lack of alignment attribute does *not* imply
natural alignment, but an alignment of `1`.
Also, we used to treat dereferenceable as implying alignment,
but we no longer do, so it's a bugfix.

Differential Revision: https://reviews.llvm.org/D99790
2021-04-07 11:02:01 +03:00
Petr Hosek 000cf84cf1 Revert "[NFC][Clang] Speculative fix for builtins-ppc-quadword-noi128.c"
This reverts commit 849d372943 which
depends on 31d219d299 that was reverted.
2021-04-06 23:22:08 -07:00
Weverything 401826800e Add missing CHECK lines in test 2021-04-06 18:00:31 -07:00
Yaxun (Sam) Liu 86175d5fed Minor fix for test hip-code-object-version.hip
Changed the order of checking of v2 and v3.

Change-Id: Ifea8197b398afdfb0aa1bd40140cda30f00f0c17
2021-04-06 20:32:16 -04:00
Yaxun (Sam) Liu 4fd05e0ad7 [HIP] Change to code object v4
Change to code object v4 by default to match ROCm 4.1.

Reviewed by: Artem Belevich

Differential Revision: https://reviews.llvm.org/D99235
2021-04-06 20:22:58 -04:00
Hansang Bae 3da61ddae7 [OpenMP] Define omp_is_initial_device() variants in omp.h
omp_is_initial_device() is marked as a built-in function in the current
compiler, and user code guarded by this call may be optimized away,
resulting in undesired behavior in some cases. This patch provides a
possible fix for such cases by defining the routine as a variant
function and removing it from builtin list.

Differential Revision: https://reviews.llvm.org/D99447
2021-04-06 16:58:01 -05:00
Aaron Puchert dfec26b186 Thread safety analysis: Don't warn about managed locks on join points
We already did so for scoped locks acquired in the constructor, this
change extends the treatment to deferred locks and scoped unlocking, so
locks acquired outside of the constructor. Obviously this makes things
more consistent.

Originally I thought this was a bad idea, because obviously it
introduces false negatives when it comes to double locking, but these
are typically easily found in tests, and the primary goal of the Thread
safety analysis is not to find double locks but race conditions.
Since the scoped lock will release the mutex anyway when the scope ends,
the inconsistent state is just temporary and probably fine.

Reviewed By: delesley

Differential Revision: https://reviews.llvm.org/D98747
2021-04-06 22:29:48 +02:00
Yaxun (Sam) Liu 61d065e21f Let clang atomic builtins fetch add/sub support floating point types
Recently atomicrmw started to support fadd/fsub:

https://reviews.llvm.org/D53965

However clang atomic builtins fetch add/sub still does not support
emitting atomicrmw fadd/fsub.

This patch adds that.

Reviewed by: John McCall, Artem Belevich, Matt Arsenault, JF Bastien,
James Y Knight, Louis Dionne, Olivier Giroux

Differential Revision: https://reviews.llvm.org/D71726
2021-04-06 15:44:00 -04:00
Alexandre Ganea 8fbc05acd5 [Windows] Add test coverage for line endings when rewriting includes
Validate that we're properly generating a single line ending on Windows when
using -frewrite-includes. Otherwise we're breaking split-line macros. The test
fails before 23929af383.

See discussion in https://reviews.llvm.org/D96363#2650460 and D99426

Differential Revision: https://reviews.llvm.org/D99973
2021-04-06 15:38:19 -04:00
Paul Robinson 04b3c8c52c Pass -fcrash-diagnostics-dir along to LLVM
This allows frontend and backend diagnostic files to all go into the
same place.  Have it control the Windows (mini-)dump location.

Differential Revision: https://reviews.llvm.org/D99199
2021-04-06 09:30:52 -07:00
Ben Langmuir 93c87fc06e [index] Improve macro indexing support
The major change here is to index macro occurrences in more places than
before, specifically

* In non-expansion references such as `#if`, `#ifdef`, etc.
* When the macro is a reference to a builtin macro such as __LINE__.
* When using the preprocessor state instead of callbacks, we now include
  all definition locations and undefinitions instead of just the latest
  one (which may also have had the wrong location previously).
* When indexing an existing module file (.pcm), we now include module
  macros, and we no longer report unrelated preprocessor macros during
  indexing the module, which could have caused duplication.

Additionally, we now correctly obey the system symbol filter for macros,
so by default in system headers only definition/undefinition occurrences
are reported, but it can be configured to report references as well if
desired.

Extends FileIndexRecord to support occurrences of macros. Since the
design of this type is to keep a single list of entities organized by
source location, we incorporate macros into the existing DeclOccurrence
struct.

Differential Revision: https://reviews.llvm.org/D99758
2021-04-06 09:12:14 -07:00
oToToT 14a7296c01
[clang][clangd] Avoid inconsistent target creation
As proposed in D97109, I tried to make target creation consistent in `clang` and `clangd` by replacing the original procedure with a single function introduced in D97493.

This also helps `clangd` works with CUDA, OpenMP, etc.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D98128
2021-04-06 23:23:34 +08:00
Erik Pilkington b660abc80d [ObjC] Add a command line flag that disables recognition of objc_direct for testability
Programmers would like to be able to test direct methods by calling them from a
different linkage unit or mocking them, both of which are impossible. This
patch adds a flag that effectively disables the attribute, which will fix this
when enabled in testable builds. rdar://71190891

Differential revision: https://reviews.llvm.org/D95845
2021-04-06 11:17:01 -04:00
Abhina Sreeskantharajan 23929af383 [Windows] Turn off text mode correctly in Rewriter to stop CRLF translation
I incorrectly changed the RewriteTestAction::ExecuteAction's file to binary instead of the proper RewriteIncludesAction::BeginSourceFileAction in https://reviews.llvm.org/rGbc5d4bcc2deb71ab647270c9754a83484b3d6f87. In the original commit, I actually changed RewriteIncludesAction::BeginSourceFileAction in https://reviews.llvm.org/rGfdb640ea30d416368b76b68b106deda580c6aced. This should fix the issue @aganea is facing.

Reviewed By: aganea

Differential Revision: https://reviews.llvm.org/D99837
2021-04-06 10:49:09 -04:00
Roman Lebedev 849d372943
[NFC][Clang] Speculative fix for builtins-ppc-quadword-noi128.c 2021-04-06 16:15:23 +03:00
Simon Pilgrim 2901dc7575 Don't directly dereference getAs<> casts to avoid potential null dereferences. NFCI.
Replace with castAs<> which asserts the cast is valid.

Fixes a number of static analyzer warnings.
2021-04-06 12:24:19 +01:00
Abhina Sreeskantharajan 82b3e28e83 [SystemZ][z/OS][Windows] Add new OF_TextWithCRLF flag and use this flag instead of OF_Text
Problem:
On SystemZ we need to open text files in text mode. On Windows, files opened in text mode adds a CRLF '\r\n' which may not be desirable.

Solution:
This patch adds two new flags

  - OF_CRLF which indicates that CRLF translation is used.
  - OF_TextWithCRLF = OF_Text | OF_CRLF indicates that the file is text and uses CRLF translation.

Developers should now use either the OF_Text or OF_TextWithCRLF for text files and OF_None for binary files. If the developer doesn't want carriage returns on Windows, they should use OF_Text, if they do want carriage returns on Windows, they should use OF_TextWithCRLF.

So this is the behaviour per platform with my patch:

z/OS:
OF_None: open in binary mode
OF_Text : open in text mode
OF_TextWithCRLF: open in text mode

Windows:
OF_None: open file with no carriage return
OF_Text: open file with no carriage return
OF_TextWithCRLF: open file with carriage return

The Major change is in llvm/lib/Support/Windows/Path.inc to only set text mode if the OF_CRLF is set.
```
  if (Flags & OF_CRLF)
    CrtOpenFlags |= _O_TEXT;
```

These following files are the ones that still use OF_Text which I left unchanged. I modified all these except raw_ostream.cpp in recent patches so I know these were previously in Binary mode on Windows.
./llvm/lib/Support/raw_ostream.cpp
./llvm/lib/TableGen/Main.cpp
./llvm/tools/dsymutil/DwarfLinkerForBinary.cpp
./llvm/unittests/Support/Path.cpp
./clang/lib/StaticAnalyzer/Core/HTMLDiagnostics.cpp
./clang/lib/Frontend/CompilerInstance.cpp
./clang/lib/Driver/Driver.cpp
./clang/lib/Driver/ToolChains/Clang.cpp

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D99426
2021-04-06 07:23:31 -04:00
Aaron Ballman 65c22acfa4 Silence -Woverloaded-virtual warnings from generated code; NFC 2021-04-06 07:19:07 -04:00
Dominik Montada b78e883fd8 [CMake] Fix Python 3 lookup when building LLVM with tests
Remove the find_package(Python3 ...) call from Tooling/CMakeLists.txt as
it would override the python 3 version determined in llvm/CMakeLists.txt.
This call did not respect the LLVM_MINIMUM_PYTHON_VERSION.

This fixes the check-all target when building LLVM on a system where the
default python version is not the minimum required version for running tests.

Reviewed By: serge-sans-paille

Differential Revision: https://reviews.llvm.org/D99715
2021-04-06 13:09:06 +02:00
Zakk Chen f2a3601aa5 [RISCV][Clang] Add all RVV Fixed-Point Arithmetic intrinsic functions.
Reviewed By: HsiangKai

Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Zakk Chen <zakk.chen@sifive.com>

Differential Revision: https://reviews.llvm.org/D99610
2021-04-06 03:12:45 -07:00
Zakk Chen fe252b509e [RISCV][Clang] Add more RVV Integer intrinsic functions.
Support below instructions.
1. Vector Integer Add-with-Carry / Subtract-with-Borrow Instructions
2. Vector Integer Comparison Instructions
3. Vector Widening Integer Multiply-Add Instructions

Reviewed By: HsiangKai

Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Zakk Chen <zakk.chen@sifive.com>

Differential Revision: https://reviews.llvm.org/D99528
2021-04-06 03:11:28 -07:00
Zakk Chen f720c22e77 [RISCV][Clang] Add RVV Widening Integer Extension intrinsic functions.
Reviewed By: HsiangKai

Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Zakk Chen <zakk.chen@sifive.com>

Differential Revision: https://reviews.llvm.org/D99527
2021-04-06 03:10:14 -07:00
Zakk Chen 0a18ea01f1 [RISCV][Clang] Add RVV vnsra, vnsrl and vwmul intrinsic functions.
Reviewed By: craig.topper

Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Zakk Chen <zakk.chen@sifive.com>

Differential Revision: https://reviews.llvm.org/D99525
2021-04-06 03:07:36 -07:00
Zakk Chen 66c05609e0 [RISCV][Clang] Add some RVV Integer intrinsic functions.
1. Rename RVVBinBuiltin to RVVOutputOp1Builtin because it is not related
to the number of operand.
2. Add RVV Integer instuctions which use RVVOutputOp1Builtin.

Reviewed By: craig.topper

Authored-by: Roger Ferrer Ibanez <rofirrim@gmail.com>
Co-Authored-by: Zakk Chen <zakk.chen@sifive.com>

Differential Revision: https://reviews.llvm.org/D99524
2021-04-06 03:07:36 -07:00
Balázs Kéri bee4813789 [clang][Checkers] Fix PthreadLockChecker state cleanup at dead symbol.
It is possible that an entry in 'DestroyRetVal' lives longer
than an entry in 'LockMap' if not removed at checkDeadSymbols.
The added test case demonstrates this.

Reviewed By: NoQ

Differential Revision: https://reviews.llvm.org/D98504
2021-04-06 11:15:29 +02:00
Jan Svoboda 2935737da3 [clang][tooling] Create SourceManager for DiagnosticsEngine before command-line parsing
In D84673, we started using `DiagnosticsEngine` during command-line parsing in more contexts.

When using `ToolInvocation`, a custom `DiagnosticsConsumer` can be specified and it might expect `SourceManager` to be present on the emitted diagnostics.

This patch ensures the `SourceManager` is set up in such scenarios.

Test authored by Jordan Rupprecht.

Reviewed By: rupprecht

Differential Revision: https://reviews.llvm.org/D99414
2021-04-06 10:40:47 +02:00
Jan Svoboda cc26943313 [clang][cli] Ensure plugin args are generated in deterministic order
The '-plugin-arg' command-line arguments are not being generated in deterministic order.

This patch changes the storage from `std::unordered_map` to `std::map` to enforce ordering.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D99879
2021-04-06 09:24:42 +02:00
Yevgeny Rouban 39e3e3aa51 [NewPM] Redesign of PreserveCFG Checker
The reason for the NewPM redesign is described in the commit
  cba3e783389a: [NewPM] Disable PreservedCFGChecker ...

The checker introduces an internal custom CFG analysis that tracks
current up-to date CFG snapshot. The analysis is invalidated along
any other CFG related analysis (the key is CFGAnalyses). If the CFG
analysis is not invalidated at a functional pass exit then the checker
asserts that the CFG snapshot taken from this analysis is equals to
a snapshot of the current CFG.

Along the way:
- the function CFG::printDiff() is simplified by removing function
  name calculation. The name is printed by the caller;
- fixed CFG invalidated condition (see CFG::invalidate());
- StandardInstrumentations::registerCallbacks() gets additional
  optional parameter of type FunctionAnalysisManager*, which is
  needed by the checker to get the custom CFG analysis;
- several PM related tests updated to explicitly set
  -verify-cfg-preserved=1 as they need.

This patch is safe to land as the CFGChecker is left switched off
(the options -verify-cfg-preserved is false by default). It will be
switched on by a separate patch to minimize possible reverts.

Reviewed By: skatkov, kuhar

Differential Revision: https://reviews.llvm.org/D91327
2021-04-06 12:35:49 +07:00
Aaron Ballman 9711118d2e Rework the way statement attributes are processed; NFC
This changes our approach to processing statement attributes to be more
similar to how we process declaration attributes. Namely,
ActOnAttributedStmt() now calls ProcessStmtAttributes() instead of
vice-versa, and there is now an interface split between building an
attributed statement where you already have a list of semantic
attributes and building an attributed statement with attributes from
the parser.

This should make it easier to support statement attributes that are
dependent on a template. In that case, you would add a
TransformFooAttr() function in TreeTransform.h to perform the semantic
checking (morally similar to how Sema::InstantiateAttrs() already works
for declaration attributes) when transforming the semantic attribute at
instantiation time.
2021-04-05 17:52:17 -04:00
Thomas Preud'homme 828ec9e9e5 [OpenCL, test] Fix use of undef FileCheck var
Clang test CodeGenOpenCL/fpmath.cl uses a variable defined in an earlier
CHECK-NOT directive. However, by definition the pattern in that
directive is not supposed to occur so no variable will be defined. This
commit solves the issue by using a regex match with the same regex as in
the definition. It also changes the definition into a regex match since
no variable is going to be defined.

Reviewed By: yaxunl

Differential Revision: https://reviews.llvm.org/D99857
2021-04-05 21:11:39 +01:00
Jennifer Yu 7078ef4722 [OPENMP51]Initial support for nocontext clause.
Added basic parsing/sema/serialization support for the 'nocontext' clause.

Differential Revision: https://reviews.llvm.org/D99848
2021-04-05 11:45:49 -07:00
Cyndy Ishida 0116d04d04 [TextAPI] move source code files out of subdirectory, NFC
TextAPI/ELF has moved out into InterfaceStubs, so theres no longer a
need to seperate out TextAPI between formats.

Reviewed By: ributzka, int3, #lld-macho

Differential Revision: https://reviews.llvm.org/D99811
2021-04-05 10:24:42 -07:00
Charusso 9b3df78b4c [analyzer] DynamicSize: Rename 'size' to 'extent' 2021-04-05 19:20:43 +02:00
Charusso 89d210fe1a [analyzer] DynamicSize: Debug facility
This patch adds two debug functions to ExprInspectionChecker to dump out
the dynamic extent and element count of symbolic values:
dumpExtent(), dumpElementCount().
2021-04-05 19:17:52 +02:00
Charusso df64f471d1 [analyzer] DynamicSize: Store the dynamic size
This patch introduces a way to store the size.

Reviewed By: NoQ

Differential Revision: https://reviews.llvm.org/D69726
2021-04-05 19:04:53 +02:00
Arnamoy Bhattacharyya 7416e8a843 [flang][driver] Add options for -Werror
With the option given, warnings are treated as error.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D98657
2021-04-05 12:47:52 -04:00
Erik Pilkington 803b79221e [SemaObjC] Fix a -Wbridge-cast false-positive
Clang used to emit a bad -Wbridge-cast diagnostic on the cast in the attached
test. This was because, after 09abecef7, struct __CFString was not added to
lookup, so the objc_bridge attribute wasn't getting duplicated onto the most
recent declaration, causing us to fail to find it in getObjCBridgeAttr. This
patch fixes this by instead walking through the redeclarations to find an
appropriate bridge attribute. rdar://72823399

Differential revision: https://reviews.llvm.org/D99661
2021-04-05 11:41:40 -04:00
Thomas Preud'homme 4dd3e0feca [DebugInfo, CallSites, test] Fix use of undef FileCheck var
Clang test CodeGen/debug-info-extern-call.c tries to check for the
absence of a sequence of instructions with several CHECK-NOT with one of
those directives using a variable defined in another. However CHECK-NOT
are checked independently so that is using a variable defined in a
pattern that should not occur in the input.

This commit removes the CHECK-NOT for the retained line attribute
definition since the CHECK-NOT on the compile unit will already check
that there is no retained lines.

Reviewed By: djtodoro

Differential Revision: https://reviews.llvm.org/D99830
2021-04-05 11:39:24 +01:00
Sylvestre Ledru 1628486548 ignore -flto= options recognized by GCC
as requested in https://bugs.llvm.org/show_bug.cgi?id=49553, submitting the proposed changes to just ignore the -flto= options which are recognized by GCC ("auto" and "jobserver").

GCC supports -flto=<auto|jobserver|<N> to select the parallelity for LTO builds. LLVM also has -flto-jobs=<N>, which only seems to have a meaning when used with -flto=thin?

The attached patch just ignores the values "auto" and "jobserver". that doesn't change anything in functionality.  Another option would be to map these values to either "thin" or "full", maybe in presence of the -ffat-lto-objects option?

-flto=<n> could also be translated to -flto-jobs=<N>.

Reviewed By: tejohnson

Differential Revision: https://reviews.llvm.org/D99501
2021-04-05 11:54:17 +02:00
Yaxun (Sam) Liu 907af84396 [CUDA][HIP] rename -fcuda-flush-denormals-to-zero
Rename it to -fgpu-flush-denormals-to-zero.

Reviewed by: Artem Belevich

Differential Revision: https://reviews.llvm.org/D99688
2021-04-05 00:13:51 -04:00
Thomas Preud'homme 292726b644 [HIP, test] Fix use of undef FileCheck var
Clang test CodeGenCUDA/kernel-stub-name.cu uses never defined DKERN
variable in a CHECK-NOT directive. This commit replace the variable by a
regex, thereby avoiding the issue.

Reviewed By: yaxunl

Differential Revision: https://reviews.llvm.org/D99832
2021-04-04 19:30:49 +01:00
Thomas Preud'homme a41b5100e4 [HIP-Clang, test] Fix use of undef FileCheck var
Commit 8129521318 changed a line defining
PREFIX in clang test CodeGenCUDA/device-stub.cu into a CHECK-NOT
directive. All following lines using PREFIX are therefore using an
undefined variable since the pattern defining PREFIX is not supposed to
occur and CHECK-NOT are checked independently.

This commit replaces all uses of PREFIX by the regex used to define it,
thereby avoiding the problem.

Reviewed By: yaxunl

Differential Revision: https://reviews.llvm.org/D99831
2021-04-04 19:30:27 +01:00
Fangrui Song e92d2b80c6 [Driver] Detect libstdc++ include paths for native gcc (-m32 and -m64) on Debian i386
Take gcc-8 on Debian i386 as an example. The target-specific libstdc++ search
path (`GPLUSPLUS_TOOL_INCLUDE_DIR`) uses the multiarch name `i386-linux-gnu`,
instead of the triple of the GCC installation `i686-linux-gnu` (the directory
under `usr/lib/gcc/`):

```
/usr/include/c++/8
/usr/include/i386-linux-gnu/c++/8
/usr/include/c++/8/backward
```

Clang currently detects `/usr/lib/gcc/i686-linux-gnu/8/../../../include/i686-linux-gnu/c++/8`.
This patch changes the second i686-linux-gnu to i386-linux-gnu so that
`/usr/include/i386-linux-gnu/c++/8` can be found.

Fix PR49827 - this was somehow regressed by my previous libstdc++ include path
cleanups and fixes for gcc-cross, but it seems that the paths were never properly tested before.

Differential Revision: https://reviews.llvm.org/D99852
2021-04-04 10:15:12 -07:00
Aaron Ballman 241d42c382 Speculative fix for failing build bot.
This attempts to resolve an issue found by http://45.33.8.238/macm1/6821/step_6.txt
2021-04-04 10:58:56 -04:00
Timm Bäder 1b4800c262 [clang][parser] Set source ranges for GNU-style attributes
Set the source ranges for parsed GNU-style attributes in
ParseGNUAttributes(), the same way that ParseCXX11Attributes() does it.

Differential Revision: https://reviews.llvm.org/D75844
2021-04-04 07:59:22 +02:00
Thomas Preud'homme 1cc9d949a1 [C++20, test] Fix use of undef FileCheck variable
Commit f495de43bd forgot two lines when
removing checks for strong and weak equality, resulting in the use of an
undefined FileCheck variable.

Reviewed By: Quuxplusone

Differential Revision: https://reviews.llvm.org/D99838
2021-04-04 00:05:48 +01:00
Thomas Preud'homme 95f448aa86 [PGO, test] Fix typo in FileCheck var
Reviewed By: xur

Differential Revision: https://reviews.llvm.org/D99821
2021-04-03 08:44:46 +01:00
Craig Topper b4f2e80600 [RISCV] Refactor conversion of B extensions to IR intrinsics a little to reduce clang binary size.
These all pass 1 type to getIntrinsic. So rather than assigning
IntrinsicTypes for each builtin which invokes the SmallVector
constructor, just select the intrinsic ID with a switch and
share a single assignment of IntrinsicTypes.
2021-04-02 23:49:44 -07:00
David Blaikie 2458aa0b91 Add missing override to clang tblgen AttrEmitter 2021-04-02 20:47:49 -07:00
Matheus Izvekov bac74a50e9 [clang] NFC: remove trailing white spaces from some tests
Differential Revision: https://reviews.llvm.org/D99826
2021-04-03 03:18:22 +02:00
Jennifer Yu 0fe8af9468 Fix build bot problem with missing OMPC_novariants in switch. 2021-04-02 13:58:39 -07:00
Aaron Ballman 4be8a26951 Use tablegen to diagnose mutually exclusive attributes
Currently, when one or more attributes are mutually exclusive, the
developer adding the attribute has to manually emit diagnostics. In
practice, this is highly error prone, especially for declaration
attributes, because such checking is not trivial. Redeclarations
require you to write a "merge" function to diagnose mutually exclusive
attributes and most attributes get this wrong.

This patch introduces a table-generated way to specify that a group of
two or more attributes are mutually exclusive:

def : MutualExclusions<[Attr1, Attr2, Attr3]>;

This works for both statement and declaration attributes (but not type
attributes) and the checking is done either from the common attribute
diagnostic checking code or from within mergeDeclAttribute() when
merging redeclarations.
2021-04-02 16:34:42 -04:00
Jennifer Yu cb424fee3d [OPENMP5.1]Initial support for novariants clause.
Added basic parsing/sema/serialization support for the 'novariants' clause.
2021-04-02 13:19:01 -07:00
Mike Rice 2165c0d389 [OPENMP][DOCS]Update status of the supported constructs, NFC. 2021-04-02 12:31:36 -07:00
Craig Topper be7358df1e Revert "[RISCV] Try using toupper instead of std::toupper to make the build bots happy."
This reverts commit 5311abc7a2.

jrtc27 included the proper header in 1bd4986e7c
while I was trying to figure out what llvm/clang usually used.
2021-04-02 12:30:23 -07:00
Craig Topper 5311abc7a2 [RISCV] Try using toupper instead of std::toupper to make the build bots happy. 2021-04-02 12:29:07 -07:00
Jessica Clarke 1bd4986e7c [Sema] Fix Windows build after b001d574d7 2021-04-02 20:27:58 +01:00
Levy Hsu f78d932cf2 [RISCV] Add IR intrinsics for Zbc extension
Head files are included in a separate patch in case the name needs to be changed.

RV32 / 64:
clmul
clmulh
clmulr

Differential Revision: https://reviews.llvm.org/D99711
2021-04-02 12:09:13 -07:00
Levy Hsu 944adbf285 Recommit "[RISCV] Add IR intrinsic for Zbb extension"
Forgot to amend the Author.

Original commit message:

Header files are included in a separate patch in case the name needs to be changed.

RV32 / 64:
orc.b

Differential Revision: https://reviews.llvm.org/D99320
2021-04-02 11:50:19 -07:00
Craig Topper 1f0b309f24 Revert "[RISCV] Add IR intrinsic for Zbb extension"
This reverts commit 1808194590.

I forgot to change the author.
2021-04-02 11:47:02 -07:00
Craig Topper 1808194590 [RISCV] Add IR intrinsic for Zbb extension
Header files are included in a separate patch in case the name needs to be changed.

RV32 / 64:
orc.b
2021-04-02 11:23:57 -07:00
Levy Hsu b001d574d7 [RISCV] Add IR intrinsic for Zbr extension
Implementation for RISC-V Zbr extension intrinsic.

Header files are included in separate patch in case the name needs to be changed

RV32 / 64:
        crc32b
        crc32h
        crc32w
        crc32cb
        crc32ch
        crc32cw

RV64 Only:
        crc32d
        crc32cd

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D99009
2021-04-02 10:58:45 -07:00
Aaron Ballman 3ebfa363f3 Remove attribute handling code for simple attributes; NFC
Attributes that set the SimpleHandler flag in Attr.td don't need to be
explicitly handled in SemaDeclAttr.cpp.
2021-04-02 11:35:10 -04:00
Sander de Smalen 0f7bbbc481 Always emit error for wrong interfaces to scalable vectors, unless cmdline flag is passed.
In order to bring up scalable vector support in LLVM incrementally,
we introduced behaviour to emit a warning, instead of an error, when
asking the wrong question of a scalable vector, like asking for the
fixed number of elements.

This patch puts that behaviour under a flag. The default behaviour is
that the compiler will always error, which means that all LLVM unit
tests and regression tests will now fail when a code-path is taken that
still uses the wrong interface.

The behaviour to demote an error to a warning can be individually enabled
for tools that want to support experimental use of scalable vectors.
This patch enables that behaviour when driving compilation from Clang.
This means that for users who want to try out scalable-vector support,
fixed-width codegen support, or build user-code with scalable vector
intrinsics, Clang will not crash and burn when the compiler encounters
such a case.

This allows us to do away with the following pattern in many of the SVE tests:
  RUN: .... 2>%t
  RUN: cat %t | FileCheck --check-prefix=WARN
  WARN-NOT: warning: ...

The behaviour to emit warnings is only temporary and we expect this flag
to be removed in the future when scalable vector support is more stable.

This patch also has fixes the following tests:
 unittests:
   ScalableVectorMVTsTest.SizeQueries
   SelectionDAGAddressAnalysisTest.unknownSizeFrameObjects
   AArch64SelectionDAGTest.computeKnownBitsSVE_ZERO_EXTEND_VECTOR_INREG

 regression tests:
   Transforms/InstCombine/vscale_gep.ll

Reviewed By: paulwalker-arm, ctetreau

Differential Revision: https://reviews.llvm.org/D98856
2021-04-02 10:55:22 +01:00
oToToT a89fb29398
[clang][ItaniumMangle] Check SizeExpr for DependentSizedArrayType
(PR49478)

As ArrayType::ArrayType mentioned in clang/lib/AST/Type.cpp, a
DependentSizedArrayType might not have size expression because it it
used as the type of a dependent array of unknown bound with a dependent
braced initializer.

Thus, I add a check when mangling array of that type.

This should fix https://bugs.llvm.org/show_bug.cgi?id=49478

Reviewed By: Richard Smith - zygoloid

Differential Revision: https://reviews.llvm.org/D99407
2021-04-02 15:31:20 +08:00
Marek Kurdej 2ec7f639c4 [clang-cl] [Sema] Do not prefer integral conversion over floating-to-integral for MS compatibility 19.28 and higher.
As of MSVC 19.28 (2019 Update 8), integral conversion is no longer preferred over floating-to-integral, and so MSVC is more standard conformant and will generate a compiler error on ambiguous call.
Cf. https://godbolt.org/z/E8xsdqKsb.
Initially found during the review of D99641.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D99663
2021-04-02 08:58:22 +02:00
Chen Zheng f026e1f520 [debug-info][XCOFF] set `-gno-column-info` by default for DBX
For DBX, it does not handle column info well. Set -gno-column-info
by default for DBX.

Reviewed By: dblaikie

Differential Revision: https://reviews.llvm.org/D99703
2021-04-01 21:29:11 -04:00
Thomas Preud'homme 2c3db73341 [OpenMP, test] Fix use of undef VAR_PRIV FileCheck var
Remove the CHECK-NOT directive referring to as-of-yet undefined VAR_PRIV
variable since the pattern of the following CHECK-NOT in the same
CHECK-NOT block covers a superset of the case caught by the first
CHECK-NOT.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D99775
2021-04-02 00:39:21 +01:00
Thomas Preud'homme 58e458935b [OpenMP, test] Fix use of undef DECL FileCheck var
OpenMP test target_data_use_device_ptr_if_codegen contains a CHECK-NOT
directive using an undefined DECL FileCheck variable. It seems copied
from target_data_use_device_ptr_codegen where there's a CHECK for a load
that defined the variable. Since there is no corresponding load in this
testcase, the simplest is to simply forbid any store and get rid of the
variable altogether.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D99771
2021-04-02 00:36:56 +01:00
Thomas Preud'homme d222a07d30 [OpenMP, test] Fix uses of undef S*VAR FileCheck var
Fix the many cases of use of undefined SIVAR/SVAR/SFVAR in OpenMP
*private_codegen tests, due to a missing BLOCK directive to capture the
IR variable when it is declared. It also fixes a few typo in its use.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D99770
2021-04-02 00:36:14 +01:00
cchen cba422264c [OpenMP51] Accept `primary` as proc bind affinity policy in Clang
Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D99622
2021-04-01 18:07:12 -05:00
Fangrui Song 6fe7de90b9 [Driver] -nostdinc -nostdinc++: don't warn for -Wunused-command-line-argument 2021-04-01 14:37:34 -07:00
Jian Cai 76d9bc7278 Reland "Add support to -Wa,--version in clang""
This relands commit 3cc3c0f835 with fixed
test cases, which was reverted by commit
bf2479c347.
2021-04-01 13:47:56 -07:00
Joseph Huber 69ca50bd7d [OpenMP] Pass mapping names to add components in a user defined mapper
Summary:
Currently the mapping names are not passed to the mapper components that set up
the array region. This means array mappings will not have their names availible
in the runtime. This patch fixes this by passing the argument name to the region
correctly. This means that the mapped variable's name will be the declared
mapper that placed it on the device.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D99681
2021-04-01 15:51:03 -04:00
Anastasia Stulova d4e9fe813f [OpenCL][Docs] Update links to the C++ for OpenCL documentation 2021-04-01 20:38:24 +01:00
Raphael Isemann 60854c328d Avoid calling ParseCommandLineOptions in BackendUtil if possible
Calling `ParseCommandLineOptions` should only be called from `main` as the
CommandLine setup code isn't thread-safe. As BackendUtil is part of the
generic Clang FrontendAction logic, a process which has several threads executing
Clang FrontendActions will randomly crash in the unsafe setup code.

This patch avoids calling the function unless either the debug-pass option or
limit-float-precision option is set. Without these two options set the
`ParseCommandLineOptions` call doesn't do anything beside parsing
the command line `clang` which doesn't set any options.

See also D99652 where LLDB received a workaround for this crash.

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D99740
2021-04-01 19:41:16 +02:00
Yaxun (Sam) Liu 85ff35a952 [HIP] remove overloaded abs in header
This function seems to be introduced by accident by
aa2b593f14

Such overloaded abs function did not exist before
the refactoring, and does not exist in
https://github.com/llvm/llvm-project/blob/main/clang/lib/Headers/__clang_cuda_cmath.h

Conceptually it also does not make sense, since it adds something like

double abs(int x) {
  return ::abs((double)x);
}

It caused regressions in CuPy.

Reviewed by: Aaron Enye Shi, Artem Belevich

Differential Revision: https://reviews.llvm.org/D99738
2021-04-01 12:23:29 -04:00
cchen 56b39afb58 [OpenMP51][DOCS] Mark "add present modifier in defaultmap clause" as
done, NFC.
2021-04-01 11:02:23 -05:00
Timm Bäder 908a267b5a Revert "[clang][parser] Set source ranges for GNU-style attributes"
This reverts commit 1ea9fa8c50.
2021-04-01 17:32:40 +02:00
Timm Bäder 1ea9fa8c50 [clang][parser] Set source ranges for GNU-style attributes
Set the source ranges for parsed GNU-style attributes in
ParseGNUAttributes(), the same way that ParseCXX11Attributes() does it.

Differential Revision: https://reviews.llvm.org/D75844
2021-04-01 17:25:23 +02:00
Anastasia Stulova 7c541a195f [OpenCL][Docs] Added a label for C++ libs section and example link 2021-04-01 13:55:23 +01:00
Balázs Kéri df4fa53fdd [clang][Checkers] Extend PthreadLockChecker state dump (NFC).
Add printing of map 'DestroyRetVal'.

Reviewed By: steakhal

Differential Revision: https://reviews.llvm.org/D98502
2021-04-01 11:59:00 +02:00
Harald van Dijk 1d463c2a38
[Driver] Fix architecture triplets and search paths for Linux x32
Currently, support for the x32 ABI is handled as a multilib to the
x86_64 target only. However, full self-hosting x32 systems treating it
as a separate architecture with its own architecture triplets as well as
search paths exist as well, in Debian's x32 port and elsewhere.

This adds the missing architecture triplets and search paths so that
clang can work as a native compiler on x32, and updates the tests so
that they pass when using an x32 libdir suffix.

Additionally, we would previously also assume that objects from any
x86_64-linux-gnu GCC installation could be used to target x32. This
changes the logic so that only GCC installations that include x32
support are used when targetting x32, meaning x86_64-linux-gnux32 GCC
installations, and x86_64-linux-gnu and i686-linux-gnu GCC installations
that include x32 multilib support.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D52050
2021-04-01 09:47:56 +01:00
Chen Zheng bfcd21876a [debug-info] support new tuning debugger type DBX for XCOFF DWARF
Based on this debugger type, for now, we plan to:
1: use inline string by default for XCOFF DWARF
2: generate no column info for debug line table.

Reviewed By: aprantl

Differential Revision: https://reviews.llvm.org/D99400
2021-04-01 00:11:30 -04:00
Yang Fan a8219991d0
[clang][APINotes] Fix -Wunused-function warning (NFC)
GCC warning:
```
/llvm-project/clang/lib/APINotes/APINotesYAMLCompiler.cpp:574:23: warning: ‘void {anonymous}::Module::dump()’ defined but not used [-Wunused-function]
  574 | LLVM_DUMP_METHOD void Module::dump() {
      |                       ^~~~~~
```
2021-04-01 09:52:43 +08:00
Nick Desaulniers bf2479c347 Revert "Add support to -Wa,--version in clang"
This reverts commit 3cc3c0f835.

Breaks non-linux platforms.

https://reviews.llvm.org/D99556#2662706
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
2021-03-31 17:02:13 -07:00
Jian Cai 3cc3c0f835 Add support to -Wa,--version in clang
Clang currently only supports -Wa,--version when -no-integrated-as is
used. This adds support to -Wa,--version with -integrated-as.

Link:
https://github.com/ClangBuiltLinux/linux/issues/1320

Reviewed By: nickdesaulniers, MaskRay

Differential Revision: https://reviews.llvm.org/D99556
2021-03-31 16:29:02 -07:00
Alexey Bataev a28e835e94 [OPENMP]Fix PR48885: Crash in passing firstprivate args to tasks on Apple M1.
Need to bitcast the function pointer passed as a parameter to the real
type to avoid possible problem with calling conventions.

Differential Revision: https://reviews.llvm.org/D99521
2021-03-31 13:00:58 -07:00
Alexey Bataev 66da4f6fc9 [OPENMP]Fix PR48658: [OpenMP 5.0] Compiler crash when OpenMP atomic sync hints used.
No need to consider hint clause kind as the main atomic clause kind at the
codegen.

Differential Revision: https://reviews.llvm.org/D99611
2021-03-31 12:58:24 -07:00
Petr Hosek fcf6800506 [Driver] Move detectLibcxxIncludePath to ToolChain
This helper method is useful even outside of Gnu toolchains, so move
it to ToolChain so it can be reused in other toolchains such as Fuchsia.

Differential Revision: https://reviews.llvm.org/D88452
2021-03-31 10:50:44 -07:00
Thomas Lively 45783d0e8a [WebAssembly] Implement i64x2 comparisons
Removes the prototype builtin and intrinsic for i64x2.eq and implements that
instruction as well as the other i64x2 comparison instructions in the final SIMD
spec. Unsigned comparisons were not included in the final spec, so they still
need to be scalarized via a custom lowering.

Differential Revision: https://reviews.llvm.org/D99623
2021-03-31 10:46:17 -07:00
Timm Bäder 5018e15fdf [clang][parser] Allow GNU-style attributes in explicit template...
... instantiations

They are currently not being diagnosed because ProhibitAttributes() does
not handle attribute lists with an invalid source range. But once it
does, we need to allow GNU attributes in this place.

Additionally, start optionally diagnosing empty attr lists in
ProhibitCXX11Attributes(), since ProhibitAttribute() does it.

Differential Revision: https://reviews.llvm.org/D97362
2021-03-31 16:44:19 +02:00
Luís Marques a8cf32baf5 [RISCV] Add XFAIL riscv32 for known issue with the old pass manager
See D80668, rG7b4832648a63 and https://bugs.llvm.org/show_bug.cgi?id=46117
for details of the issue.

Differential Revision: https://reviews.llvm.org/D99108
2021-03-31 15:18:32 +01:00
Anton Bikineev dc7ebd2cb0 [C++2b] Support size_t literals
This adds support for C++2b's z/uz suffixes for size_t literals (P0330).
2021-03-31 13:36:23 +00:00
Balázs Kéri ffcb4b43b7 Revert "[clang][Checkers] Extend PthreadLockChecker state dump (NFC)."
This reverts commit 49c0ab6d76.

Test failures showed up because non-deterministic output.
2021-03-31 15:28:53 +02:00
Balazs Benics 9d474be11d [ASTImporter][NFC] Fix duplicated symbols in "Improve test coverage"
D99576 introduced a duplicate symbol, now im removing it.

Differential Revision: https://reviews.llvm.org/D99576
2021-03-31 12:47:50 +02:00
Balazs Benics 936d1e97a3 [ASTImporter][NFC] Improve test coverage
All three cases were imported correctly.
For BlockDecls, correctly means that we don't support importing them, thus an
error is the expected behaviour.

 - BlockDecls were not yet covered. I know that they are not imported but the
   test at least documents it.
 - Default values for ParmVarDecls were also uncovered.
 - Importing bitfield FieldDecls were imported correctly.

Reviewed By: martong, shafik

Differential Revision: https://reviews.llvm.org/D99576
2021-03-31 12:10:23 +02:00
Balázs Kéri 49c0ab6d76 [clang][Checkers] Extend PthreadLockChecker state dump (NFC).
Add printing of map 'DestroyRetVal'.

Reviewed By: steakhal

Differential Revision: https://reviews.llvm.org/D98502
2021-03-31 11:19:42 +02:00
Sven van Haastregt b5995fced4 [OpenCL] Limit popcount to OpenCL 1.2 and above
s6.15.3 of the OpenCL C Specification v3.0.6 states that OpenCL 1.2 or
newer is required.
2021-03-31 09:54:18 +01:00
Jim Lin 32ca5a037a [RISCV] Refine pre-define macro tests
1. Undefined macro test for rv32i and rv64i.
  a. Reorder it with canonical order.
  b. Add missing  undefined macro check.
  c. Append defined value to `__riscv_a`, `__riscv_f` and `__riscv_c` to distinguish with
      `__riscv_arch_test`, `__riscv_cmodel_medlow` and `__riscv_float_abi_soft`. They have the same prefix.
2. Move abi macro test below f and d.
3. Unify coding style for newline.

Reviewed By: HsiangKai

Differential Revision: https://reviews.llvm.org/D99631
2021-03-31 14:06:20 +08:00
Ta-Wei Tu 99fd066227 [clang][Sema] Don't try to initialize implicit variable of invalid anonymous union/struct
This fixes https://bugs.llvm.org/show_bug.cgi?id=49534, where the call to the constructor
of the anonymous union is checked and triggers assertion failure when trying to retrieve
the alignment of the `this` argument (which is a union with virtual function).

The extra check for alignment was introduced in D97187.

Reviewed By: tmatheson

Differential Revision: https://reviews.llvm.org/D98548
2021-03-31 09:05:45 +08:00
Richard Smith 9eef0fae2b Fix test expectations for %diff documentation. 2021-03-30 17:48:08 -07:00
Richard Smith c23ee7718e [www] List both the regular and expanded form of %diff in the
diagnostics reference.

In passing, properly validate and diagnose errors in %diff format
specifiers.
2021-03-30 17:25:01 -07:00
Richard Smith c5f174905b Delete checked-in generated copy of diagnostic reference.
The documentation build rule will generate an up-to-date version of this
if it's not checked in.
2021-03-30 16:18:55 -07:00
Richard Smith d87384f7df [www] Fix build of attribute documentation. 2021-03-30 16:18:55 -07:00
Richard Smith 1705136590 Fix pluralization error in diagnostic, and move C++ testcase to proper
directory.
2021-03-30 16:18:55 -07:00
Richard Smith ee176d2e6e [www] Color Clang 11 and Clang 12 features as green and not yellow, and
Clang 13 features as yellow not green.
2021-03-30 15:22:16 -07:00
Wei Mi d535a05ca1 [ThinLTO] During module importing, close one source module before open
another one for distributed mode.

Currently during module importing, ThinLTO opens all the source modules,
collect functions to be imported and append them to the destination module,
then leave all the modules open through out the lto backend pipeline. This
patch refactors it in the way that one source module will be closed before
another source module is opened. All the source modules will be closed after
importing phase is done. It will save some amount of memory when there are
many source modules to be imported.

Note that this patch only changes the distributed thinlto mode. For in
process thinlto mode, one source module is shared acorss different thinlto
backend threads so it is not changed in this patch.

Differential Revision: https://reviews.llvm.org/D99554
2021-03-30 14:37:29 -07:00
Mike Rice b7899ba0e8 [OPENMP51]Initial support for the dispatch directive.
Added basic parsing/sema/serialization support for dispatch directive.

Differential Revision: https://reviews.llvm.org/D99537
2021-03-30 14:12:53 -07:00
Alexey Bataev e2c7bf08cc [OPENMP]Fix PR48607: Crash during clang openmp codegen for firstprivate() of `float _Complex`.
Need to cast the argument for the debug wrapper function call to the
corresponding parameter type to avoid crash.

Differential Revision: https://reviews.llvm.org/D99617
2021-03-30 13:39:45 -07:00
Matheus Izvekov 3ad6dd5d8f [clang] Use decltype((E)) for compound requirement type constraint
See PR45088.

Compound requirement type constraints were using decltype(E) instead of
decltype((E)), as per `[expr.prim.req]p1.3.3`.

Since neither instantiation nor type dependence should matter for
the constraints, this uses an approach where a `decltype` type is not built,
and just the canonical type of the expression after template instantiation
is used on the requirement.

Signed-off-by: Matheus Izvekov <mizvekov@gmail.com>

Reviewed By: rsmith

Differential Revision: https://reviews.llvm.org/D98160
2021-03-30 22:00:33 +02:00
John Brawn eae3b2a715 [clang][cli] Fix round-trip of OPT_plugin_arg
The test Frontend/plugin-delayed-template.cpp is failing when asserts
are enabled because it hits an assertion in denormalizeStringImpl when
trying to round-trip OPT_plugin_arg. Fix this by adjusting how the
option is handled, as the first part is joined to -plugin-arg and the
second is separate.

Differential Revision: https://reviews.llvm.org/D99606
2021-03-30 18:33:10 +01:00
Nico Rieck bc4b0fc53e [clang-format] Fix east const pointer alignment of operators
This patch fixes left pointer alignment after pointer qualifiers of
operators. Currently "operator void const*()" is formatted with a space between
const and pointer despite setting PointerAlignment to Left.

AFAICS this has been broken since clang-format 10.

Reviewed By: MyDeveloperDay, curdeius

Differential Revision: https://reviews.llvm.org/D99458
2021-03-30 17:18:32 +02:00
Kevin Petit 9d25ce743a [OpenCL] Fix parsing of opencl-c.h in CL 3.0
Ensure that the cl_khr_3d_image_writes pragma is enabled by making
cl_khr_3d_image_writes an optional core feature in CL 3.0 in addition
to being an available extension in 1.0 onwards and a core feature in
CL 2.0.

https://reviews.llvm.org/D99425

Signed-off-by: Kevin Petit <kevin.petit@arm.com>
2021-03-30 16:17:46 +01:00
Alexey Bataev bd334c790f [OPENMP]Fix test checks for 32bit targets, NFC. 2021-03-30 07:45:12 -07:00
Valeriy Savchenko af7e1f07ac [analyzer] Fix crash when reasoning about C11 atomics (PR49422)
rdar://75020762

Differential Revision: https://reviews.llvm.org/D99274
2021-03-30 16:04:19 +03:00
Valeriy Savchenko 90377308de [analyzer] Support allocClassWithName in OSObjectCStyleCast checker
`allocClassWithName` allocates an object with the given type.
The type is actually provided as a string argument (type's name).
This creates a possibility for not particularly useful warnings
from the analyzer.

In order to combat with those, this patch checks for casts of the
`allocClassWithName` results to types mentioned directly as its
argument.  All other uses of this method should be reasoned about
as before.

rdar://72165694

Differential Revision: https://reviews.llvm.org/D99500
2021-03-30 15:58:06 +03:00
Gabor Marton efa7df1682 [Analyzer] Track RValue expressions
It makes sense to track rvalue expressions in the case of special
concrete integer values. The most notable special value is zero (later
we may find other values). By tracking the origin of 0, we can provide a
better explanation for users e.g. in case of division by 0 warnings.
When the divisor is a product of a multiplication then now we can show
which operand (or both) was (were) zero and why.

Differential Revision: https://reviews.llvm.org/D99344
2021-03-30 14:48:38 +02:00
Alexey Bataev 1696b8ae96 [OPENMP]Fix PR48740: OpenMP declare reduction in C does not require an initializer
If no initializer-clause is specified, the private variables will be
initialized following the rules for initialization of objects with static
storage duration.

Need to adjust the implementation to the current version of the
standard.

Differential Revision: https://reviews.llvm.org/D99539
2021-03-30 05:38:20 -07:00
Martin Probst 2b30bd2be0 clang-format: [JS] do not collapse - - to --.
In JavaScript, `- -1;` is legal syntax, the language allows unary minus.
However the two tokens must not collapse together: `--1` is prefix
decrement, i.e. different syntax.

Before:

    - -1; ==> --1;

After:

    - -1; ==> - -1;

This change makes no attempt to format this "nicely", given by all
likelihood this represents a programming mistake by the user, or odd
generated code.

The check is not guarded by language: this appears to be a problem in
Java as well, and will also be beneficial when formatting syntactically
incorrect C++ (e.g. during editing).

Differential Revision: https://reviews.llvm.org/D99495
2021-03-30 14:31:24 +02:00
Marek Kurdej a99b8ae390 [clang] [PR49736] [C++2b] Correctly reject lambdas with requires clause and no parameter list
This fixes http://llvm.org/PR49736 caused by implementing http://wg21.link/P1102 (https://reviews.llvm.org/rG0620e6f4b76a9725dbd82454d58c5a68a7e47074), by correctly allowing requires-clause only:
1) directly after template-parameter-list
2) after lambda-specifiers iff parameter-declaration-clause is present (2nd kind of lambda-declarator)

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D99489
2021-03-30 13:53:55 +02:00
Gabor Marton 98f6cbd68e [ASTImporter] Import member specialization/instantiation of enum decls
We do the import of the member enum specialization similarly to as we do
with member CXXRecordDecl specialization.

Differential Revision: https://reviews.llvm.org/D99421
2021-03-30 11:57:46 +02:00
Raphael Isemann 1cbba533ec [ObjC][CodeGen] Fix missing debug info in situations where an instance and class property have the same identifier
Since the introduction of class properties in Objective-C it is possible to declare a class and an instance
property with the same identifier in an interface/protocol.

Right now Clang just generates debug information for whatever property comes first in the source file.
The second property is ignored as it's filtered out by the set of already emitted properties (which is just
using the identifier of the property to check for equivalence).  I don't think generating debug info in this case
was never supported as the identifier filter is in place since 7123bca7fb
(which precedes the introduction of class properties).

This patch expands the filter to take in account identifier + whether the property is class/instance. This
ensures that both properties are emitted in this special situation.

Reviewed By: aprantl

Differential Revision: https://reviews.llvm.org/D99512
2021-03-30 11:07:16 +02:00
Johannes Doerfert 03cc8a1ba0 [OpenMP][NFC] Move the `noinline` to the parallel entry point
The `noinline` for non-SPMD parallel functions is probably not necessary
but as long as we use it we should put it on the outermost parallel
function, which is the wrapper, not the actual outlined function.

Resolves PR49752

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D99506
2021-03-30 01:12:45 -05:00
Hsiangkai Wang 5821a58d8e [RISCV] Add inline asm constraint 'vr' and 'vm' in Clang for RISC-V 'V'.
Add asm constraint 'vr' for vector registers.
Add asm constraint 'vm' for vector mask registers.

Differential Revision: https://reviews.llvm.org/D98616
2021-03-30 09:47:27 +08:00
Fanbo Meng bd8dd580ff [NFC] clang-formatting zos-alignment.c
Reviewed By: abhina.sreeskantharajan

Differential Revision: https://reviews.llvm.org/D99514
2021-03-29 16:48:10 -04:00
Florian Hahn d3ff65dc11
[Clang] Fix line numbers in CHECK lines. 2021-03-29 17:37:48 +01:00
Florian Hahn 9320ac9b49
[Clang] Only run test when X86 backend is built.
After c773d0f973 the remark is only emitted if the loop is profitable
to vectorize, but cannot be vectorized. Hence, it depends on
X86-specific cost-modeling.
2021-03-29 17:27:01 +01:00
Fanbo Meng f1e0c7fdd7 [SystemZ][z/OS] Add test of leading zero length bitfield in const/volatile struct
Reviewed By: abhina.sreeskantharajan

Differential Revision: https://reviews.llvm.org/D99508
2021-03-29 12:06:30 -04:00
Alexey Bataev 0411b23319 [OPENMP]Map data field with l-value reference types.
Added initial support dfor the mapping of the data members with l-value
reference types.

Differential Revision: https://reviews.llvm.org/D98812
2021-03-29 07:07:09 -07:00
Alexey Bataev f6f21dcd6c [OPENMP]Fix PR49636: Assertion `(!Entry.getAddress() || Entry.getAddress() == Addr) && "Resetting with the new address."' failed.
The original issue is caused by the fact that the variable is allocated
with incorrect type i1 instead of i8. This causes the bitcasting of the
declaration to i8 type and the bitcast expression does not match the
original variable.
To fix the problem, the UndefValue initializer and the original
variable should be emitted with type i8, not i1.

Differential Revision: https://reviews.llvm.org/D99297
2021-03-29 06:55:57 -07:00
Fanbo Meng 0858f0e09e [SystemZ][z/OS] Set maximum value to truncate attribute aligned to for static variables on z/OS target
On z/OS there is a hard limitation on on the maximum requestable alignment in aligned attribute for static variables. We need to truncate values greater than that.

Reviewed By: abhina.sreeskantharajan

Differential Revision: https://reviews.llvm.org/D98864
2021-03-29 09:44:33 -04:00
Alexey Bataev dcf96178cb [OPENMP]Fix PR49052: Clang crashed when compiling target code with assert(0).
Need to insert a basic block during generation of the target region to
avoid crash for the GPU to be able always calling a cleanup action.
This cleanup action is required for the correct emission of the target
region for the GPU.

Differential Revision: https://reviews.llvm.org/D99445
2021-03-29 06:36:06 -07:00
Matt Arsenault 9a0c9402fa Reapply "OpaquePtr: Turn inalloca into a type attribute"
This reverts commit 07e46367ba.
2021-03-29 08:55:30 -04:00
Oliver Stannard 07e46367ba Revert "Reapply "OpaquePtr: Turn inalloca into a type attribute""
Reverting because test 'Bindings/Go/go.test' is failing on most
buildbots.

This reverts commit fc9df30991.
2021-03-29 11:32:22 +01:00
Fangrui Song 2a28d1d3b7 [Driver] Linux.cpp: move resource directory before /usr/local/include for non-musl
This follows GCC and simplifies code. /usr/local/include and TOOL_INCLUDE_DIR
should not conflict with the resource directory include so users should not
observe any difference.
2021-03-28 12:44:21 -07:00
Fangrui Song 53c98d85a8 [Driver] Suppress libstdc++/libc++ path with -nostdinc
This follows GCC. Having libstdc++/libc++ include paths is not useful
anyway because libstdc++/libc++ header files cannot find features.h.

While here, suppress -stdlib++-isystem with -nostdlibinc.
2021-03-28 11:30:27 -07:00
Craig Topper 3fb40ce167 [X86] Don't define vpclmulqdq or vaes intrinsics in the headers unless avx512fintrin.h has been included.
The intrinsics won't compile unless avx512fintrin.h has declared
the 512 bit types.
2021-03-28 11:26:30 -07:00
Matt Arsenault fc9df30991 Reapply "OpaquePtr: Turn inalloca into a type attribute"
This reverts commit 20d5c42e0e.
2021-03-28 13:35:21 -04:00
Nico Weber 20d5c42e0e Revert "OpaquePtr: Turn inalloca into a type attribute"
This reverts commit 4fefed6563.
Broke check-clang everywhere.
2021-03-28 13:02:52 -04:00
Zakk Chen 821547cabb [RISCV][Clang] Update new overloading rules for RVV intrinsics.
RVV intrinsics has new overloading rule, please see
82aac7dad4

Changed:
1. Rename `generic` to `overloaded` because the new rule is not using C11 generic.
2. Change HasGeneric to HasNoMaskedOverloaded because all masked operations
   support overloading api.
3. Add more overloaded tests due to overloading rule changed.

Differential Revision: https://reviews.llvm.org/D99189
2021-03-28 09:04:35 -07:00
Matt Arsenault 4fefed6563 OpaquePtr: Turn inalloca into a type attribute
I think byval/sret and the others are close to being able to rip out
the code to support the missing type case. A lot of this code is
shared with inalloca, so catch this up to the others so that can
happen.
2021-03-28 11:12:23 -04:00
Björn Schäpers c5243c63cd [clang-format] Fix aligning with linebreaks
Breaking a string literal or a function calls arguments with
AlignConsecutiveDeclarations or AlignConsecutiveAssignments did misalign
the continued line. E.g.:

void foo() {
  int myVar = 5;
  double x  = 3.14;
  auto str  = "Hello"
            "World";
}

or

void foo() {
  int    myVar = 5;
  double x = 3.14;
  auto   str = "Hello"
             "World";
}

Differential Revision: https://reviews.llvm.org/D98214
2021-03-28 16:26:27 +02:00
Aaron Ballman 581b429f7d Update the documentation for recent changes to statement attributes.
Adds more information about automated diagnostic reporting for statement
attributes and adds a bit more documentation about statement attributes
in general.
2021-03-28 09:54:36 -04:00
Fangrui Song 8e2f5f95b5 [Driver] Simplify mips multilib path and fix comments. NFC 2021-03-28 00:30:38 -07:00
Fangrui Song dcaa0293c1 [test] Add UNSUPPORTED: system-windows to linux-ld.c
We should have a test verifying / \ for Windows but have such a long
test specifically for Linux cross compilation suffer from Windows \
is too troublesome.
2021-03-27 16:46:30 -07:00
Fangrui Song 87a9f42fc1 [Driver] Remove an incorrect library path for multilib
This is incorrect (adding a path with unrelated libraries) but benign in practice because previous paths take precedence.
2021-03-27 16:36:21 -07:00
Fangrui Song 19e45696f5 [Driver] Remove an unneeded multiarch library path which ends with ../../..
Neither vanilla nor Debian GCC has the patch, which usually duplicates $sysroot/usr/lib.
2021-03-27 15:46:06 -07:00
Aaron Puchert c61ae6e6d5 Deduplicate branches and adjust comment [NFC]
Currently we want to allow calling non-const methods even when only a
shared lock is held, because -Wthread-safety-reference is already quite
sensitive and not all code is const-correct. Even if it is, this might
require users to add std::as_const around the implicit object argument.

See D52395 for a discussion.

Fixes PR46963.
2021-03-27 23:08:43 +01:00
Jan Svoboda bb88a5aeee [clang][cli] Round-trip cc1 arguments in assert builds
This patch enables cc1 argument round-trip for assert builds. It can be disabled by building clang with `-DCLANG_ROUND_TRIP_CC1_ARGS=OFF`.

This will be committed only if we reach consensus in https://lists.llvm.org/pipermail/cfe-dev/2021-February/067714.html.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D97462
2021-03-27 17:24:03 +01:00
Sean Perry 7e0cc45ced [SystemZ][z/OS] Save strings for CC_PRINT env vars
The contents of the string returned by getenv() is not guaranteed across calls to getenv(). The code to handle the CC_PRINT etc env vars calls getenv() and saves the results in just a char *. The string returned by getenv() needs to be copied and saved. Switching the type of the strings from char * to std::string will do this and manage the alloated memory.

Differential Revision: https://reviews.llvm.org/D98554
2021-03-26 16:38:36 -04:00
Anastasia Stulova 706c1dc266 [OpenCL][Docs] Minor update about C++ for OpenCL in UsersManual. 2021-03-26 19:24:07 +00:00
Giorgis Georgakoudis 8bc2c662d9 [Utils] Add prefix parameter in update test checks to avoid FileCheck conflicts
IR values convert to check prefix FileCheck variables for IR checks. For example, nameless values, e.g., %0, convert to check prefix TMP FileCheck variables, e.g., [[TMP0:%.*]]. This check prefix may clash with named values that have the same name and that causes auto-generated tests to fail. Currently a warning is emitted to change the names of the IR values but this is not always possible, if for example they are generated by clang. Manual intervention to fix the FileCheck variable names is too tedious. This patch add a parameter to prefix conflicting FileCheck variable names with a user-provided string to automate the process.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D99415
2021-03-26 11:49:42 -07:00
Anastasia Stulova 6e46f0b628 [OpenCL] Fix AST check in address-space-templates test
Differential Revision: https://reviews.llvm.org/D99258
2021-03-26 14:24:30 +00:00
Fanbo Meng 6f91cf75d7 [SystemZ][z/OS] Ignore leading zero width bitfield alignment on z/OS target
Zero length bitfield alignment is not respected if they are leading members on z/OS target.

Reviewed By: abhina.sreeskantharajan

Differential Revision: https://reviews.llvm.org/D98890
2021-03-26 10:10:33 -04:00
Anastasia Stulova a81925664b [OpenCL][Docs] Update status of OpenCL 3.0 development 2021-03-26 13:07:06 +00:00
Abhina Sreeskantharajan bc5d4bcc2d [Windows] Turn off text mode in TableGen and Rewriter to stop CRLF translation
This patch should fix the errors shown on the Windows bots by turning off text mode. I plan to investigate a better fix but this should unblock the buildbots for now.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D99363
2021-03-26 07:12:46 -04:00
Richard Smith 4f3ea27dac Stop this test from dropping a .s file in the current directory. 2021-03-25 18:22:18 -07:00
Richard Smith 11bf268864 Add a target triple to fix test failure on targets that don't support
__int128.
2021-03-25 17:05:36 -07:00
Fangrui Song ed956554f9 [Triple][Driver] Add muslx32 environment and use /lib/ld-musl-x32.so.1 for -dynamic-linker
Differential Revision: https://reviews.llvm.org/D99308
2021-03-25 16:25:47 -07:00
David Stone 4b5baa5b82 Handle 128-bits IntegerLiterals in StmtPrinter
This fixes PR35677: "int128_t or uint128_t as non-type template
parameter causes crash when considering invalid constructor".
2021-03-25 17:27:13 -04:00
Matt Morehouse 8e0bb21931 [HWASan] Mention x86_64 aliasing mode in design doc.
Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D98892
2021-03-25 14:22:20 -07:00
Xun Li f490a5969b [OpenMP][InstrProfiling] Fix a missing instr profiling counter
When emitting a function body there needs to be a instr profiling counter emitted. Otherwise instr profiling won't work for this function.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D98135
2021-03-25 13:52:36 -07:00
Richard Smith 622f8de4f2 PR49724: Fix deduction of null member pointers.
Previously we created an implicit cast of the wrong kind, which we'd
later fail to constant-evaluate, resulting in deduction failure.
2021-03-25 13:47:22 -07:00
Xun Li c7a39c833a [Coroutine][Clang] Force emit lifetime intrinsics for Coroutines
tl;dr Correct implementation of Corouintes requires having lifetime intrinsics available.

Coroutine functions are functions that can be suspended and resumed latter. To do so, data that need to stay alive after suspension must be put on the heap (i.e. the coroutine frame).
The optimizer is responsible for analyzing each AllocaInst and figure out whether it should be put on the stack or the frame.
In most cases, for data that we are unable to accurately analyze lifetime, we can just conservatively put them on the heap.
Unfortunately, there exists a few cases where certain data MUST be put on the stack, not on the heap. Without lifetime intrinsics, we are unable to correctly analyze those data's lifetime.

To dig into more details, there exists cases where at certain code points, the current coroutine frame may have already been destroyed. Hence no frame access would be allowed beyond that point.
The following is a common code pattern called "Symmetric Transfer" in coroutine:
```
auto tmp = await_suspend();
__builtin_coro_resume(tmp.address());
return;
```
In the above code example, `await_suspend()` returns a new coroutine handle, which we will obtain the address and then resume that coroutine. This essentially "transfered" from the current coroutine to a different coroutine.
During the call to `await_suspend()`, the current coroutine may be destroyed, which should be fine because we are not accessing any data afterwards.
However when LLVM is emitting IR for the above code, it needs to emit an AllocaInst for `tmp`. It will then call the `address` function on tmp. `address` function is a member function of coroutine, and there is no way for the LLVM optimizer to know that it does not capture the `tmp` pointer. So when the optimizer looks at it, it has to conservatively assume that `tmp` may escape and hence put it on the heap. Furthermore, in some cases `address` call would be inlined, which will generate a bunch of store/load instructions that move the `tmp` pointer around. Those stores will also make the compiler to think that `tmp` might escape.
To summarize, it's really difficult for the mid-end to figure out that the `tmp` data is short-lived.
I made some attempt in D98638, but it appears to be way too complex and is basically doing the same thing as inserting lifetime intrinsics in coroutines.

Also, for reference, we already force emitting lifetime intrinsics in O0 for AlwaysInliner: https://github.com/llvm/llvm-project/blob/main/llvm/lib/Passes/PassBuilder.cpp#L1893

Differential Revision: https://reviews.llvm.org/D99227
2021-03-25 13:46:20 -07:00
Leonard Chan 1abaadb30d [clang][driver] Support HWASan in the Fuchsia toolchain
These contain clang driver changes for supporting HWASan on Fuchsia.
This includes hwasan multilibs and the dylib path change.

Differential Revision: https://reviews.llvm.org/D99361
2021-03-25 13:36:23 -07:00
Yaxun (Sam) Liu cc9477166a [CUDA][HIP] add __builtin_get_device_side_mangled_name
Add builtin function __builtin_get_device_side_mangled_name
to get device side manged name for functions and global
variables, which can be used to get symbol address of kernels
or variables by mangled name in dynamically loaded
bundled code objects at run time.

Reviewed by: Artem Belevich

Differential Revision: https://reviews.llvm.org/D99301
2021-03-25 15:25:29 -04:00
Shoaib Meenai 33930a0787 [clang] Pass option directly to command. NFC
This code was written back when LLVM's minimum required CMake version
was 2.8.8, and I assume ExternalProject_Add_Step didn't take this option
at that point. It does now though, so we should just use the option.
Setting the _EP_* property is entirely equivalent (and is in fact how
these commands behave internally), but that also feels like an internal
implementation detail we shouldn't be relying on.

Reviewed By: beanz

Differential Revision: https://reviews.llvm.org/D99322
2021-03-25 11:36:06 -07:00
Shoaib Meenai 0135bc996d [clang] Always execute multi-stage install steps
We want installs to be executed even if binaries haven't changed, e.g.
so that we can install to multiple places. This is consistent with how
non-multi-stage install targets (e.g. the regular install-distribution
target) behave.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D99321
2021-03-25 11:36:00 -07:00
Utkarsh Saxena aa979084df [clang][Syntax] Optimize expandedTokens for token ranges.
`expandedTokens(SourceRange)` used to do a binary search to get the
expanded tokens belonging to a source range. Each binary search uses
`isBeforeInTranslationUnit` to order two source locations. This is
inherently very slow.
By profiling clangd we found out that users like clangd::SelectionTree
spend 95% of time in `isBeforeInTranslationUnit`. Also it is worth
noting that users of `expandedTokens(SourceRange)` majorly use ranges
provided by AST to query this funciton. The ranges provided by AST are
token ranges (starting at the beginning of a token and ending at the
beginning of another token).

Therefore we can avoid the binary search in majority of the cases by
maintaining an index of ExpandedToken by their SourceLocations. We still
do binary search for ranges which are not token ranges but such
instances are quite low.

Performance:
`~/build/bin/clangd --check=clang/lib/Serialization/ASTReader.cpp`
Before: Took 2:10s to complete.
Now: Took 1:13s to complete.

Differential Revision: https://reviews.llvm.org/D99086
2021-03-25 18:54:15 +01:00
Gabor Marton 015c39882e [Analyzer] Infer 0 value when the divisible is 0 (bug fix)
Currently, we infer 0 if the divisible of the modulo op is 0:
  int a = x < 0; // a can be 0
  int b = a % y; // b is either 1 % sym or 0
However, we don't when the op is / :
  int a = x < 0; // a can be 0
  int b = a / y; // b is either 1 / sym or 0 / sym

This commit fixes the discrepancy.

Differential Revision: https://reviews.llvm.org/D99343
2021-03-25 18:25:06 +01:00
Arnamoy Bhattacharyya 4c7ebf79e9 [flang][driver] Add options for -std=f2018
Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D97119
2021-03-25 13:03:16 -04:00
Sven van Haastregt 8fbfc92a5c Reuse `os` variable in AllocateTarget; NFC 2021-03-25 14:38:02 +00:00
Abhina Sreeskantharajan c83cd8feef [NFC] Reordering parameters in getFile and getFileOrSTDIN
In future patches I will be setting the IsText parameter frequently so I will refactor the args to be in the following order. I have removed the FileSize parameter because it is never used.

```
  static ErrorOr<std::unique_ptr<MemoryBuffer>>
  getFile(const Twine &Filename, bool IsText = false,
          bool RequiresNullTerminator = true, bool IsVolatile = false);

  static ErrorOr<std::unique_ptr<MemoryBuffer>>
  getFileOrSTDIN(const Twine &Filename, bool IsText = false,
                 bool RequiresNullTerminator = true);

 static ErrorOr<std::unique_ptr<MB>>
 getFileAux(const Twine &Filename, uint64_t MapSize, uint64_t Offset,
            bool IsText, bool RequiresNullTerminator, bool IsVolatile);

  static ErrorOr<std::unique_ptr<WritableMemoryBuffer>>
  getFile(const Twine &Filename, bool IsVolatile = false);
```

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D99182
2021-03-25 09:47:49 -04:00
Abhina Sreeskantharajan ea61708c6d [SystemZ][z/OS] csv files should be text files
This patch sets the OF_Text flag correctly for the csv file.

Reviewed By: anirudhp

Differential Revision: https://reviews.llvm.org/D99285
2021-03-25 09:19:15 -04:00
Djordje Todorovic 8420a53324 [Debugify] Expose original debug info preservation check as CC1 option
In order to test the preservation of the original Debug Info metadata
in your projects, a front end option could be very useful, since users
usually report that a concrete entity (e.g. variable x, or function fn2())
is missing debug info. The [0] is an example of running the utility
on GDB Project.

This depends on: D82546 and D82545.

Differential Revision: https://reviews.llvm.org/D82547
2021-03-25 05:29:42 -07:00
Nemanja Ivanovic 06411edb9f [PowerPC][NFC] Provide legacy names for VSX loads and stores
Before we unified the names of the builtins across all the
compilers, there were a number of synonyms between them. There
is code out there that uses XL naming for some of these loads and
stores. This just adds those names.
2021-03-25 06:32:40 -05:00
Krasimir Georgiev d9abcdd9f4 [clang-format] Fix ObjC method indent after f7f9f94b
Commit
f7f9f94b2e
changed the indent of ObjC method arguments from +4 to +2, if the method
occurs after a block statement.  I believe this was unintentional and there
was insufficient ObjC test coverage to catch this.

Example: `clang-format -style=google test.mm`

before:
```
void aaaaaaaaaaaaaaaaaaaaa(int c) {
  if (c) {
    f();
  }
  [dddddddddddddddddddddddddddddddddddddddddddddddddddddddd
      eeeeeeeeeeeeeeeeeeeeeeeeeeeee:^(fffffffffffffff gggggggg) {
        f(SSSSS, c);
      }];
}
```

after:
```
void aaaaaaaaaaaaaaaaaaaaa(int c) {
  if (c) {
    f();
  }
  [dddddddddddddddddddddddddddddddddddddddddddddddddddddddd
    eeeeeeeeeeeeeeeeeeeeeeeeeeeee:^(fffffffffffffff gggggggg) {
      f(SSSSS, c);
    }];
}
```

Differential Revision: https://reviews.llvm.org/D99063
2021-03-25 10:52:08 +01:00
Chuanqi Xu 20b4f484d1 [Driver] Add -fno-split-stack
Summary: Add -fno-split-stack and rename CC1 option from `-split-stacks`
to `-fsplit-stack`.

Test Plan: check-all

Differential Revision: https://reviews.llvm.org/D99245
2021-03-25 14:18:28 +08:00
Fangrui Song cdd993fab3 [Driver] Use -dynamic-linker /lib/ld-musl-i386.so.1 for i?86-linux-musl
Noticed by Khem Raj
2021-03-24 19:44:53 -07:00
Nathan Chancellor ef58ae86ba
[RISCV] Fix mcount name
GCC's name for this symbol is _mcount, which the Linux kernel expects in
a few different place:

  $ echo 'int main(void) { return 0; }' | riscv32-linux-gcc -c -pg -o tmp.o -x c -

  $ llvm-objdump -dr tmp.o | grep mcount
                          0000000c:  R_RISCV_CALL _mcount

  $ echo 'int main(void) { return 0; }' | riscv64-linux-gcc -c -pg -o tmp.o -x c -

  $ llvm-objdump -dr tmp.o | grep mcount
                  000000000000000c:  R_RISCV_CALL _mcount

  $ echo 'int main(void) { return 0; }' | clang -c -pg -o tmp.o --target=riscv32-linux-gnu -x c -

  $ llvm-objdump -dr tmp.o | grep mcount
                          0000000a:  R_RISCV_CALL_PLT     mcount

  $ echo 'int main(void) { return 0; }' | clang -c -pg -o tmp.o --target=riscv64-linux-gnu -x c -

  $ llvm-objdump -dr tmp.o | grep mcount
                  000000000000000a:  R_RISCV_CALL_PLT     mcount

Set MCountName to "_mcount" in RISCVTargetInfo then prevent it from
getting overridden in certain OSTargetInfo constructors.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D98881

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
2021-03-24 18:11:37 -07:00
Yuanfang Chen 217f0f735a [Clang][Sema] Implement GCC -Wcast-function-type
```
Warn when a function pointer is cast to an incompatible function
pointer. In a cast involving function types with a variable argument
list only the types of initial arguments that are provided are
considered. Any parameter of pointer-type matches any other
pointer-type. Any benign differences in integral types are ignored, like
int vs. long on ILP32 targets. Likewise type qualifiers are ignored. The
function type void (*) (void) is special and matches everything, which
can be used to suppress this warning. In a cast involving pointer to
member types this warning warns whenever the type cast is changing the
pointer to member type. This warning is enabled by -Wextra.
```

Reviewed By: rsmith

Differential Revision: https://reviews.llvm.org/D97831
2021-03-24 16:04:18 -07:00
Fangrui Song 35dd6470de [Driver] Bring back "Clean up Debian multiarch /usr/include/<triplet> madness"
This reverts commit aae84b8e39.

The chromium goma folks want to use a Debian sysroot without
lib/x86_64-linux-gnu to perform `clang -c` but no link action. The previous
commit has removed D.getVFS().exists check to make such usage work.
2021-03-24 15:25:37 -07:00
Fangrui Song bfbfd83f14 [Driver] Linux.cpp: delete unneeded D.getVFS().exists checks
Not only can this save unneeded filesystem stats, it can make `clang
--sysroot=/path/to/debian-sysroot -c a.cc` work (get `-internal-isystem
$sysroot/usr/include/x86_64-linux-gnu`) even without `lib/x86_64-linux-gnu/`.
This should make thakis happy.
2021-03-24 15:25:36 -07:00
Petr Hosek 39f3e9a9e0 [CMake][Fuchsia] Include llvm-lipo
We want to use llvm-lipo for building universal libraries.

Differential Revision: https://reviews.llvm.org/D99243
2021-03-24 14:21:40 -07:00
Janusz Nykiel e030ce3ec7 [Tooling] Handle compilation databases containing commands with double dashes
As of CMake commit https://gitlab.kitware.com/cmake/cmake/-/commit/d993ebd4,
which first appeared in CMake 3.19.x series, in the compile commands for
clang-cl, CMake puts `--` before the input file. When operating on such a
database, the `InterpolatingCompilationDatabase` - specifically, the
`TransferableCommand` constructor - does not recognize that pattern and so, does
not strip the input, or the double dash when 'transferring' the compile command.
This results in a incorrect compile command - with the double dash and old input
file left in, and the language options and new input file appended after them,
where they're all treated as inputs, including the language version option.

Test files for some tests have names similar enough to be matched to commands
from the database, e.g.:

`.../path-mappings.test.tmp/server/bar.cpp`

can be matched to:

`.../Driver/ToolChains/BareMetal.cpp`

etc. When that happens, the tool being tested tries to use the matched, and
incorrectly 'transferred' compile command, and fails, reporting errors similar
to:

`error: no such file or directory: '/std:c++14'; did you mean '/std:c++14'? [clang-diagnostic-error]`

This happens in at least 4 tests:

  Clang Tools :: clang-tidy/checkers/performance-trivially-destructible.cpp
  Clangd :: check-fail.test
  Clangd :: check.test
  Clangd :: path-mappings.test

The fix for `TransferableCommand` removes the `--` and everything after it when
determining the arguments that apply to the new file. `--` is inserted in the
'transferred' command if the new file name starts with `-` and when operating in
clang-cl mode, also `/`. Additionally, other places in the code known to do
argument adjustment without accounting for the `--` and causing the tests to
fail are fixed as well.

Differential Revision: https://reviews.llvm.org/D98824
2021-03-24 16:01:47 -04:00
Alexey Bataev 9e9f6eba84 [OPENMP]Fix PR49468: Declare target should allow empty sequences and namespaces.
The emty declare target/end declare target region should not cause an
error emission.

Differential Revision: https://reviews.llvm.org/D99288
2021-03-24 12:53:33 -07:00
Heejin Ahn a6aae5f7fc [WebAssembly] Don't inline -emscripten-cxx-exceptions-allowed functions
Functions specified in `-emscripten-cxx-exceptions-allowed`, which is
set by Emscripten's `EXCEPTION_CATCHING_ALLOWED` setting, can be inlined
in LLVM middle ends before we reach WebAssemblyLowerEmscriptenEHSjLj
pass in the wasm backend and thus don't get transformed for exception
catching.

This fixes the issue by adding `--force-attribute=FUNC_NAME:noinline`
for each function name in `-emscripten-cxx-exceptions-allowed`, which
adds `noinline` attribute to the specified function and thus excludes
the function from inlining candidates in optimization passes.

Fixes the remaining half of
https://github.com/emscripten-core/emscripten/issues/10721.

Reviewed By: sbc100

Differential Revision: https://reviews.llvm.org/D99259
2021-03-24 12:27:49 -07:00
Nathan James 279ea930fa
[clang] Add fixit for Wreorder-ctor
Create fix-it hints to fix the order of constructors.
To make this a lot simpler, I've grouped all the warnings for each out of order initializer into 1.
This is necessary as fixing one initializer would often interfere with other initializers.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D98745
2021-03-24 19:22:53 +00:00
Abhina Sreeskantharajan 0bf833f670 [SystemZ][z/OS] JSON file should be text files
This patch sets the OF_Text flag correctly for the json file created in Clang::DumpCompilationDatabaseFragmentToDir.

Reviewed By: amccarth

Differential Revision: https://reviews.llvm.org/D99200
2021-03-24 13:28:08 -04:00
Alexey Bataev 7654bb6303 [OPENMP]Fix PR48571: critical/master in outlined contexts cause crash.
If emit inlined region for master/critical directives, no need to clear
lambda/block context data, otherwise the variables cannot be found and
it causes a crash at compile time.

Differential Revision: https://reviews.llvm.org/D99280
2021-03-24 10:15:24 -07:00
Aaron Puchert a6a1c3051d Fix false negative in -Wthread-safety-attributes
The original implementation didn't fire on non-template classes when a
base class was an instantiation of a template with a dependent base.
In that case the base of the base is dependent as seen from the base,
but not from the class we're interested in, which isn't a template.

Also it simplifies the code a lot.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D98724
2021-03-24 17:45:25 +01:00
Marek Kurdej 0620e6f4b7 [clang] [C++2b] [P1102] Accept lambdas without parameter list ().
As an extension, accept such lambdas in previous standards with a warning.

* http://eel.is/c++draft/expr.prim.lambda
* http://wg21.link/P1102

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D98433
2021-03-24 14:42:27 +01:00
Stefan Pintilie 91f4c11133 [PowerPC] Add mprivileged option
Add an option to tell the compiler that it can use privileged instructions.

This patch only adds the option. Backend implementation will be added in a
future patch.

Reviewed By: lei, amyk

Differential Revision: https://reviews.llvm.org/D99193
2021-03-24 08:33:22 -05:00
Haojian Wu cfc36bf017 [clang] Treat variable-length array of incomplete element type as
incomplete type.

Differential Revision: https://reviews.llvm.org/D99165
2021-03-24 14:22:15 +01:00
Anastasia Stulova d1c8a151df [OpenCL] Added distinct file extension for C++ for OpenCL.
Files compiled with C++ for OpenCL mode can now have a distinct
file extension - clcpp, then clang driver picks the compilation
mode automatically (-x clcpp) without the use of -cl-std=clc++.

Differential Revision: https://reviews.llvm.org/D96771
2021-03-24 13:07:04 +00:00
Jan Svoboda 772e9f88dd [clang][deps] NFC: Document collector, rename members
This patch documents how `ModuleDepCollector{,PP}` work and what their members store. Also renames somewhat vague `MainDeps` to `FileDeps` and `Deps` to `ModularDeps`.

Depends on D98943.

Reviewed By: Bigcheese

Differential Revision: https://reviews.llvm.org/D98950
2021-03-24 11:58:43 +01:00
Jan Svoboda 3190cf2017 [clang][deps] NFC: Extract ModuleID struct
This patch extracts the `ModuleName` and `ContextHash` members of `ClangModuleDep`, `FullDependencies` and `ModuleDeps` into a single struct `ModuleID`. This makes it easier to understand how the full dependency graph works.

Reviewed By: Bigcheese, dexonsmith

Differential Revision: https://reviews.llvm.org/D98943
2021-03-24 11:57:43 +01:00
Stefan Pintilie 0e4f5f3ea6 [PowerPC] Change option to mrop-protect
In order to have the same option on power PC LLVM and power PC gcc
the option will be changed from -mrop-protection to -mrop-protect.

The feature will be off by default and turned on when the option is used.

Reviewed By: lei, amyk

Differential Revision: https://reviews.llvm.org/D99185
2021-03-24 05:51:35 -05:00
Gabor Marton f8a850ccf4 [Analyzer][NFC] Fix typos in comments 2021-03-24 11:46:10 +01:00
Ella Ma 1d8fc086ae [clang][lit] Allow test cases to use the compiler that are used to compile Clang
Required by D83660.
Test cases may want to use the host compiler to compile some mocks for the
test case.

This patch adds two substitutions `%host_cc` and `%host_cxx` to use the host
compilers set via variable `CMAKE_C_COMPILER` and `CMAKE_CXX_COMPILER`.

Patch by Ella Ma!

Reviewed By: steakhal

Differential Revision: https://reviews.llvm.org/D98918
2021-03-24 11:32:57 +01:00
Balázs Kéri f6cdb2c0a7 [clang][ASTImporter] Add import of DeducedTemplateSpecializationType.
Reviewed By: shafik

Differential Revision: https://reviews.llvm.org/D99188
2021-03-24 09:43:58 +01:00
Fangrui Song 7c5222e4d1 [Driver] Bring back i586-linxu-gnu
This is used by Fuchsia for a Debian jessie based sysroot.
2021-03-23 23:37:43 -07:00
Fangrui Song 0361e64975 [Driver] Gnu.cpp: remove unneeded getMultiarchTriple normalization 2021-03-23 23:12:19 -07:00
Nemanja Ivanovic 4020932706 [PowerPC] Make altivec.h work with AIX which has no __int128
There are a number of functions in altivec.h that use
vector __int128 which isn't supported on AIX. Those functions
need to be guarded for targets that don't support the type.
Furthermore, the functions that produce quadword instructions
without using the type need a builtin. This patch adds the
macro guards to altivec.h using the __SIZEOF_INT128__ which
is only defined on targets that support the __int128 type.
2021-03-24 00:35:51 -05:00
Zequan Wu aae84b8e39 Revert "[Driver] Bring back "Clean up Debian multiarch /usr/include/<triplet> madness" and restore i586-linux-gnu"
This breaks bots in chromium goma building.

This reverts commit 424bf5d891.
2021-03-23 20:12:09 -07:00
Zakk Chen 88c2d4c8eb [RISCV][Clang] Add RVV Vector Indexed Load intrinsic functions.
Support Complex type transformer to define more complexity legal type.

Overall our downstream implementation there are only four instructions need to
use complex type transformer, it's not a common case.
I still feel using a string for prototypes is simple and clear.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D98848
2021-03-23 19:18:50 -07:00
Richard Smith 4259301aaf Support #__private_macro and #__public_macro in local submodule
visibility mode.
2021-03-23 16:54:28 -07:00
Richard Smith 4cd109891c Improve const-correctness. NFC. 2021-03-23 16:54:27 -07:00
Bruno Cardoso Lopes 431e3138a1 [CGAtomic] Lift stronger requirements on cmpxch and support acquire failure mode
- Fix `emitAtomicCmpXchgFailureSet` to support release/acquire (succ/fail) memory order.
- Remove stronger checks for cmpxch.

Effectively, this addresses http://wg21.link/p0418

Differential Revision: https://reviews.llvm.org/D98995
2021-03-23 16:45:37 -07:00
Fangrui Song c4f65ef78f [test] Add --sysroot= to make gcc-toolchain.cpp stable 2021-03-23 13:32:30 -07:00
Arthur O'Dwyer 5f1de9cab1 [C++20] [P1825] Fix bugs with implicit-move from variables of reference type.
Review D88220 turns out to have some pretty severe bugs, but I *think*
this patch fixes them.

Paper P1825 is supposed to enable implicit move from "non-volatile objects
and rvalue references to non-volatile object types." Instead, what was committed
seems to have enabled implicit move from "non-volatile things of all kinds,
except that if they're rvalue references then they must also refer to non-volatile
things." In other words, D88220 accidentally enabled implicit move from
lvalue object references (super yikes!) and also from non-object references
(such as references to functions).

These two cases are now fixed and regression-tested.

Differential Revision: https://reviews.llvm.org/D98971
2021-03-23 14:12:06 -04:00
Paul Robinson e150be612b Document -fcrash-diagnostics-dir
This was added in LLVM 7.0 but without help text or other docs.

Differential Revision: https://reviews.llvm.org/D98873
2021-03-23 10:47:12 -07:00
Nancy Wang f46c41febb [SystemZ][z/OS] fix lit test related to alignment
This patch is to fix lit test case failure relate to alignment, on z/OS, maximum alignment value for 64 bit mode is 16 and also fixed clang/test/Layout/itanium-union-bitfield.cpp, attribute ((aligned(4))) is needed for bit-field member in Union for z/OS because single bit-field has one byte alignment, this will make sure size and alignment will be correct value on z/OS.

Differential Revision: https://reviews.llvm.org/D98793
2021-03-23 13:15:19 -04:00
Nathan James 8298899e56
[ASTMatchers][NFC] Use SmallVector when building variadic matcher descriptor
Saves having to manually deallocate storage and keeps InnerArgs will have good cache locality.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D99106
2021-03-23 16:38:45 +00:00
Arnamoy Bhattacharyya cd4abc5242 [flang][driver] Add -fintrinsic-modules-path option
Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D97080
2021-03-23 12:28:19 -04:00
Timm Bäder bc6b139392 [clang][parser] Don't prohibit attributes on objc @try/@throw
This line has a TODO comment, but the answer to it seems to be "no"
given that clang itself uses attributes on @try statements in its tests.

This ProhibitAttributes() statement is also dead code since
ProhibitAttributs() does not handle GNU attributes at the moment but
those are the only attributes valid in objc.

Differential Revision: https://reviews.llvm.org/D97371
2021-03-23 15:26:25 +01:00
Nemanja Ivanovic 4146864735 [PowerPC][NFC] Use valid type for offset in altivec.h
We currently use signed long long instead of ptrdiff_t for offsets
in altivec.h. This has never really presented a problem because
all platforms where we use these are 64-bit. However, now that
we have 32-bit targets, we need to use a meaningful type.
2021-03-23 08:45:37 -05:00
Zakk Chen 0bc1959f51 [RISCV][NFC] Fix RVV intrinsic tests.
1. Skip the temporary file
2. Test cc1 with -S to verify codegen work well. Add '-target-feature
   +m' because the backend requires it to calculate the vscaled size/offset.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D99082
2021-03-23 06:06:05 -07:00
Raphael Isemann 274907c0a4 [ASTImporter] Split out Objective-C related unit tests
This moves the two tests we have for importing Objective-C nodes to their own
file. The motivation is that this means I can add more Objective-C tests without
making the compilation time of ASTImporterTest even longer. Also it seems nice
to separate the Apple-specific stuff from the ASTImporter test.

Reviewed By: martong

Differential Revision: https://reviews.llvm.org/D99162
2021-03-23 13:58:45 +01:00
Kadir Cetinkaya 8f80c66bd2
[clang] Fix a crash when CTAD fails
Differential Revision: https://reviews.llvm.org/D99145
2021-03-23 13:03:30 +01:00
Abhina Sreeskantharajan a234d03198 [NFC] Formatting changes
This patch addresses some formatting changes from the comments in https://reviews.llvm.org/D97785.

Reviewed By: anirudhp

Differential Revision: https://reviews.llvm.org/D99072
2021-03-23 07:17:54 -04:00
Nemanja Ivanovic 2f782a796a [PowerPC] Add more missing overloads to altivec.h
Add overloads that perform subtraction on v1i128 that take and
produce vector unsigned char to avoid needing to use __int128.
The overloads are suffixed with _u128 and are needed for targets
where __int128 isn't supported (AIX).
2021-03-23 05:52:36 -05:00
Sven van Haastregt 1c6521a0dd [OpenCL] Remove mixed signedness atomic_fetch_ from opencl-c.h
The OpenCL C specification v3.0.6 s6.15.12.7.5 mentions:

    For atomic_fetch and modify functions with key = or, xor, and, min
    and max on atomic type atomic_intptr_t, M is intptr_t, and on
    atomic type atomic_uintptr_t, M is uintptr_t.

Remove the atomic_fetch_* overloads from opencl-c.h that mix intptr_t
and uintptr_t in the same declaration.

Differential Revision: https://reviews.llvm.org/D98418
2021-03-23 10:20:13 +00:00
Nemanja Ivanovic 54e4654f04 [PowerPC] Add more missing overloads to altivec.h
Add overloads that perform addition on v1i128 that take and produce
vector unsigned char to avoid needing to use __int128. The overloads
are suffixed with _u128 and are needed for targets where __int128
isn't supported (AIX).
2021-03-23 05:09:19 -05:00
Balázs Kéri 3cde27bc56 [clang][ASTImporter] Import "CapturedVLAType" in FieldDecl.
Update ASTImporter to import value of FieldDecl::getCapturedVLAType.

Reviewed By: shafik, martong

Differential Revision: https://reviews.llvm.org/D99062
2021-03-23 09:54:25 +01:00
Nemanja Ivanovic 10cc5bcd86 [PowerPC] Add more missing overloads to altivec.h
Add vec_permi as a synonym for vec_xxpermdi (but only for
doubleword vectors).
2021-03-22 23:09:41 -05:00
Nemanja Ivanovic b5e96e0ad6 [PowerPC] Add more missing overloads to altivec.h
Add vec_gbb as a synonym for vec_vgbbd but for doubleword vectors.
2021-03-22 22:25:28 -05:00
Nemanja Ivanovic d8e574c8e6 [PowerPC] Add more missing overloads to altivec.h
Add vec_cvf as a synonym for vec_doublee/vec_floate.
2021-03-22 22:08:43 -05:00
Richard Smith 3775d811ff Improve module dumping for debugging.
* List inferred lists of imports in `#pragma clang __debug module_map`.

  * Add `#pragma clang __debug modules {all,visible,building}` to dump
    lists of known / visible module names or the building modules stack.
2021-03-22 19:07:46 -07:00
Zakk Chen 1ea07ee453 Revert "[RISCV][NFC] Fix RVV intrinsic tests."
This reverts commit ab082b582d.
2021-03-22 18:51:48 -07:00
Zakk Chen ab082b582d [RISCV][NFC] Fix RVV intrinsic tests.
1. Skip the temporary file
2. Test cc1 with -S to verify codegen work well. Add '-target-feature
   +m' because the backend requires it to calculate the vscaled size/offset.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D99082
2021-03-22 18:24:03 -07:00
Nemanja Ivanovic bef2cb9062 [PowerPC] Add more missing overloads to altivec.h
Add vec_ctd which is similar to vec_ctf except the return type is
vector double rather than vector float.
2021-03-22 20:23:07 -05:00
Amara Emerson 66af90b46e [darwin][driver] Pass through -global-isel LLVM flags to ld.
GlobalISel is currently not enabled when using -flto since the front-end
-mvllm flags don't get passed through. This change fixes this for Darwin
platforms. We have to do this in the driver because the code generator choice
isn't embedded into the bitcode file.

Differential Revision: https://reviews.llvm.org/D99126
2021-03-22 17:23:06 -07:00
Stephen Kelly 4c65dfc895 [AST] Add introspection support for Decls
The test code has lots of interesting locations which are not yet
introspected, but those will come later:

 http://ce.steveire.com/z/3T90hR

Differential Revision: https://reviews.llvm.org/D98775
2021-03-22 23:16:02 +00:00
Richard Smith 3c67653ef4 [docs] Clarify which part of the "refers to" rule for lifetimebound is
recursive.
2021-03-22 15:06:20 -07:00
Richard Smith 5fab60377c Attempt to further improve the documentation for the [[clang::lifetimebound]] attribute.
Differential Revision: https://reviews.llvm.org/D99117
2021-03-22 15:03:42 -07:00
Joshua Haberman c3134d7c44 [clang] Replaced some manual pointer tagging with llvm::PointerIntPair.
There is no functional change here (hence no new tests). The only change
is to replace a couple uintptr_t members with llvm::PointerIntPair<> to
clean up the code, making it more readable and less error prone.

This cleanup highlighted that the old code was effectively casting away
const. This is fixed by changing some function signatures.

Reviewed By: rsmith

Differential Revision: https://reviews.llvm.org/D98889
2021-03-22 14:13:42 -07:00
Fangrui Song 424bf5d891 [Driver] Bring back "Clean up Debian multiarch /usr/include/<triplet> madness" and restore i586-linux-gnu
This reverts commit 933d146f38 and 21b211a8f2
(which mis-identified the issue) but restores i586-linux-gnu which was
removed by `Gnu.cpp: remove obsoleted i386 triple detection from end-of-life distribution versions`.

Looks like i586-linux-gnu was not dead enough (used in a sysroot by Fuchsia build bot based on Debian jessie:)
but i486-linux-gnu should be very dead by now.
2021-03-22 13:25:35 -07:00
Yaxun (Sam) Liu 282bf9eaf7 [HIP] Fix ROCm detection
ROCm has changed installation path to /opt/rocm-{release}. Add detection
for that. Also support ROCM_PATH environment variable.

Reviewed by: Artem Belevich

Differential Revision: https://reviews.llvm.org/D98867
2021-03-22 16:10:02 -04:00
Fangrui Song 3e32e8c588 [test] Bring back the improved arm and $sysroot/usr/include/i386-linux-gnu tests
21b211a8f2 was reverted temporarily to
give Fuchsia some time for migrating to a better sysroot, but the tests
can be restored separately.
2021-03-22 12:08:46 -07:00