Commit Graph

85149 Commits

Author SHA1 Message Date
Richard Smith 234f51a65a Don't crash if we deserialize a pack expansion type whose pattern
contains no packs.

Fixes a regression from 740a164dec.
2020-07-31 17:19:44 -07:00
Hsiangkai Wang 721d93fc5a Support experimental v extension v0.9.
Differential revision: https://reviews.llvm.org/D81213
2020-08-01 07:42:06 +08:00
Andrei Lebedev 731292e5f3 Updated the -I option description. 2020-07-31 15:39:12 -07:00
Jaydeep Chauhan 38d3e75332
[clang] Use the location of the void parameters when complaining that only a single void parameter should be present.
Fixes PR46417.

Differential Revision: https://reviews.llvm.org/D84678

Reviewed By: aaron.ballman
2020-07-31 20:36:58 +01:00
Michael Kruse 18eba165e7 [OpenMP][docs] Update loop tiling status. 2020-07-31 13:01:55 -05:00
Amy Kwan c4e5743232 [PowerPC] Implement low-order Vector Modulus Builtins, and add Vector Multiply/Divide/Modulus Builtins Tests
Power10 introduces new instructions for vector multiply, divide and modulus.
These instructions can be exploited by the builtin functions: vec_mul, vec_div,
and vec_mod, respectively.

This patch aims adds the function prototype, vec_mod, as vec_mul and vec_div
been previously implemented in altivec.h.

This patch also adds the following front end tests:
vec_mul for v2i64
vec_div for v4i32 and v2i64
vec_mod for v4i32 and v2i64

Differential Revision: https://reviews.llvm.org/D82576
2020-07-31 10:58:07 -05:00
Erich Keane e704aa4f25 DR2303: Prefer 'nearer' base classes during template deduction.
DR2303 fixes the case where the derived-base match for template
deduction is ambiguous if a base-of-base ALSO matches. The canonical
example (as shown in the test) is just like the MSVC implementation of
std::tuple.

This fixes a fairly sizable issue, where if a user inherits from
std::tuple on Windows (with the MS STL), they cannot use that type to
call a function that takes std::tuple.

Differential Revision: https://reviews.llvm.org/D84048
2020-07-31 05:39:55 -07:00
Kadir Cetinkaya 1618828165
[clang][Syntax] syntax::Arena doesnt own TokenBuffer
Currently an Arena can only be built while consuming a TokenBuffer,
some users (like clangd) might want to share a TokenBuffer with multiple
compenents. This patch changes Arena's TokenBuffer member to be a reference so
that it can be created with read-only token buffers.

Differential Revision: https://reviews.llvm.org/D84973
2020-07-31 11:50:01 +02:00
Balazs Benics 63d3aeb529 [analyzer] Fix out-of-tree only clang build by not relaying on private header
It turned out that the D78704 included a private LLVM header, which is excluded
from the LLVM install target.
I'm substituting that `#include` with the public one by moving the necessary
`#define` into that. There was a discussion about this at D78704 and on the
cfe-dev mailing list.

I'm also placing a note to remind others of this pitfall.

Reviewed By: mgorny

Differential Revision: https://reviews.llvm.org/D84929
2020-07-31 10:28:14 +02:00
Fangrui Song c06e22fe07 [Driver] Exclude options::LinkerInput for GCC linking
options::LinkerInput options may get duplicated after 6a75496836ea14bcfd2f4b59d35a1cad4ac58cee..
2020-07-31 00:04:09 -07:00
Fangrui Song fcf8ada18f [Driver] Render -e for Gnu.cpp 2020-07-30 23:49:32 -07:00
Arthur Eubanks c03d3aca7d [test] Fix thinlto-distributed-newpm.ll
Broken by https://reviews.llvm.org/D84981.
2020-07-30 20:09:34 -07:00
Eli Friedman 8dfb5d767e [clang codegen][AArch64] Use llvm.aarch64.neon.fcvtzs/u where it's necessary
fptosi/fptoui have similar, but not identical, semantics.  In
particular, the behavior on overflow is different.

Fixes https://bugs.llvm.org/show_bug.cgi?id=46844 for 64-bit.  (The
corresponding patch for 32-bit is more involved because the equivalent
intrinsics don't exist, as far as I can tell.)

Differential Revision: https://reviews.llvm.org/D84703
2020-07-30 15:41:54 -07:00
Richard Smith 1e7f026c3b PR46908: Emit undef destroying_delete_t as an aggregate RValue.
We previously used a non-aggregate RValue to represent the passed value,
which violated the assumptions of call arg lowering in some cases, in
particular on 32-bit Windows, where we'd end up producing an FCA store
with TBAA metadata, that the IR verifier would reject.
2020-07-30 14:50:01 -07:00
Petr Hosek 3ff7dcded2 [CMake][Fuchsia] Include additional tools in the toolchain
These are needed on Windows.

Differential Revision: https://reviews.llvm.org/D83999
2020-07-30 13:08:02 -07:00
Yuanfang Chen 555cf42f38 [NewPM][PassInstrument] Add PrintPass callback to StandardInstrumentations
Problem:
Right now, our "Running pass" is not accurate when passes are wrapped in adaptor because adaptor is never skipped and a pass could be skipped. The other problem is that "Running pass" for a adaptor is before any "Running pass" of passes/analyses it depends on. (for example, FunctionToLoopPassAdaptor). So the order of printing is not the actual order.

Solution:
Doing things like PassManager::Debuglogging is very intrusive because we need to specify Debuglogging whenever adaptor is created. (Actually, right now we're not specifying Debuglogging for some sub-PassManagers. Check PassBuilder)

This patch move debug logging for pass as a PassInstrument callback. We could be sure that all running passes are logged and in the correct order.

This could also be used to implement hierarchy pass logging in legacy PM. We could also move logging of pass manager to this if we want.

The test fixes looks messy. It includes changes:
- Remove PassInstrumentationAnalysis
- Remove PassAdaptor
- If a PassAdaptor is for a real pass, the pass is added
- Pass reorder (to the correct order), related to PassAdaptor
- Add missing passes (due to Debuglogging not passed down)

Reviewed By: asbirlea, aeubanks

Differential Revision: https://reviews.llvm.org/D84774
2020-07-30 10:07:57 -07:00
Hiroshi Yamauchi 3d6f53018f [PGO] Include the mem ops into the function hash.
To avoid hash collisions when the only difference is in mem ops.
2020-07-30 09:26:20 -07:00
Joel E. Denny 3d06fc0049 [OpenMP][Docs] Mark `present` motion modifier as done 2020-07-30 12:21:37 -04:00
Johannes Doerfert ebad64dfe1 [OpenMP][FIX] Consistently use OpenMPIRBuilder if requested
When we use the OpenMPIRBuilder for the parallel region we need to also
use it to get the thread ID (among other things) in the body. This is
because CGOpenMPRuntime::getThreadID() and
CGOpenMPRuntime::emitUpdateLocation implicitly assumes that if they are
called from within a parallel region there is a certain structure to the
code and certain members of the OMPRegionInfo are initialized. It might
make sense to initialize them even if we use the OpenMPIRBuilder but we
would preferably get rid of such state instead.

Bug reported by Anchu Rajendran Sudhakumari.

Depends on D82470.

Reviewed By: anchu-rajendran

Differential Revision: https://reviews.llvm.org/D82822
2020-07-30 10:19:40 -05:00
Johannes Doerfert 19756ef53a [OpenMP][IRBuilder] Support allocas in nested parallel regions
We need to keep track of the alloca insertion point (which we already
communicate via the callback to the user) as we place allocas as well.

Reviewed By: fghanim, SouraVX

Differential Revision: https://reviews.llvm.org/D82470
2020-07-30 10:19:39 -05:00
Alexey Bataev 622e46156d [OPENMP]Fix PR46824: Global declare target pointer cannot be accessed in target region.
Need to map the base pointer for all directives, not only target
data-based ones.
The base pointer is mapped for array sections, array subscript, array
shaping and other array-like constructs with the base pointer. Also,
codegen for use_device_ptr clause was modified to correctly handle
mapping combination of array like constructs + use_device_ptr clause.
The data for use_device_ptr clause is emitted as the last records in the
data mapping array.

Reviewed By: ye-luo

Differential Revision: https://reviews.llvm.org/D84767
2020-07-30 11:18:33 -04:00
Alexey Bataev b69357c2f4 Revert "[OPENMP]Fix PR46824: Global declare target pointer cannot be accessed in target region."
This reverts commit 142d0d3ed8 to
investigate undefined behavior revealed by buildbots.
2020-07-30 10:57:56 -04:00
Xiangling Liao 4e6176fd91 [AIX] Temporarily disable IncrementalProcessingTest partially
Temporarily disable IncrementalProcessingTest partially until the static
initialization implementation on AIX is recovered.

Differential Revision: https://reviews.llvm.org/D84880
2020-07-30 10:41:52 -04:00
Alexey Bataev 142d0d3ed8 [OPENMP]Fix PR46824: Global declare target pointer cannot be accessed in target region.
Need to map the base pointer for all directives, not only target
data-based ones.
The base pointer is mapped for array sections, array subscript, array
shaping and other array-like constructs with the base pointer. Also,
codegen for use_device_ptr clause was modified to correctly handle
mapping combination of array like constructs + use_device_ptr clause.
The data for use_device_ptr clause is emitted as the last records in the
data mapping array.
It applies only for global pointers.

Differential Revision: https://reviews.llvm.org/D84767
2020-07-30 09:40:05 -04:00
Balázs Kéri 1745ba41b1 [Analyzer] Remove inclusion of uniqueing decl from diagnostic profile.
The uniqueing decl in PathDiagnostic is the declaration with the
uniqueing loc, as stated by documentation comments.
It is enough to include the uniqueing loc in the profile. It is possible
to have objects with different uniqueing decl but same location, at
least with templates. These belong to the same class and should have
same profile.

Reviewed By: vsavchenko, NoQ

Differential Revision: https://reviews.llvm.org/D84843
2020-07-30 09:52:28 +02:00
Haojian Wu 73c12bd8ff [Concepts] Fix a deserialization crash.
`TemplateTypeParmDecl::hasTypeConstraint` is not a safe guard for
checking `TemplateTypeParmDecl::getTypeConstraint()` result is null.

in somecases (e.g. implicit deduction guide templates synthesized from the
constructor, immediately-declared constraint is not formed because of an error),
hasTypeConstraint returns false, and getTypeConstraint returns a nullptr.

Fix https://bugs.llvm.org/show_bug.cgi?id=46790

Differential Revision: https://reviews.llvm.org/D84455
2020-07-30 09:25:15 +02:00
Balázs Kéri b22b97b3d0 [Analyzer] Use of BugType in DereferenceChecker (NFC).
Use of BuiltinBug is replaced by BugType.
Class BuiltinBug seems to have no benefits and is confusing.

Reviewed By: Szelethus, martong, NoQ, vsavchenko

Differential Revision: https://reviews.llvm.org/D84494
2020-07-30 08:33:12 +02:00
Amy Huang f71deb43ab [DebugInfo] Fix to ctor homing to ignore classes with trivial ctors.
Previously ctor homing was omitting debug info for classes if they
have both trival and nontrivial constructors, but we should only omit debug
info if the class doesn't have any trivial constructors.

retained types list.

bug: https://bugs.llvm.org/show_bug.cgi?id=46537

Differential Revision: https://reviews.llvm.org/D84870
2020-07-29 19:55:20 -07:00
Richard Smith a648834313 PR46729: Reject explicit and partial specializations with C linkage. 2020-07-29 17:44:32 -07:00
Alex Lorenz dc22182d1f [darwin] build and link with a separate compiler-rt builtins library
for device simulators

This change separates out the iOS/tvOS/watchOS simulator slices from the "libclang_rt.<os>.a"
fat archive, by moving them out to their own "libclang_rt.<os>sim.a" static archive.
This allows us to build and to link with an arm64 device simulator slice for the simulators running
on Apple Silicons, and to distribute it in one archive alongside the Intel simulator slices.

Differential Revision: https://reviews.llvm.org/D84564
2020-07-29 15:32:30 -07:00
Hiroshi Yamauchi ae7589e1f1 Revert "[PGO] Include the mem ops into the function hash."
This reverts commit 120e66b341.

Due to a buildbot failure.
2020-07-29 15:04:57 -07:00
Hiroshi Yamauchi 120e66b341 [PGO] Include the mem ops into the function hash.
To avoid hash collisions when the only difference is in mem ops.

Differential Revision: https://reviews.llvm.org/D84782
2020-07-29 13:59:40 -07:00
Johannes Doerfert b08abf4c80 [OpenMP] Fix D83281 issue on windows by allowing `dso_local` in CHECK [2/1]
The problem with 8723280b68 was that the
`dso_local` is *before* the void not after. Hope this works.
2020-07-29 15:47:45 -05:00
Johannes Doerfert 8723280b68 [OpenMP] Fix D83281 issue on windows by allowing `dso_local` in CHECK 2020-07-29 15:18:20 -05:00
Richard Smith 1cbdf932b4 PR46231: Promote diagnostic for 'template<...>;' from ExtWarn to Error.
No other compiler accepts this as an extension, not even in permissive
mode. We're not doing anyone any favors by allowing this, and it's
unlikely to be at all common, even in Clang-only code, in the wild.
2020-07-29 12:35:18 -07:00
Richard Smith e69138dad5 PR46859: Fix crash if declaring a template in a DeclScope with no DeclContext.
This can happen during error recovery; it could also happen at block
scope if we ever parsed a template declaration at block scope.
2020-07-29 12:02:55 -07:00
Baptiste Saleil 7aaa85627b [PowerPC] Add options to control paired vector memops support
Adds frontend and backend options to enable and disable the
PowerPC paired vector memory operations added in ISA 3.1.
Instructions using these options will be added in subsequent patches.

Differential Revision: https://reviews.llvm.org/D83722
2020-07-29 14:00:53 -05:00
Matt Morehouse e2d0b44a7c [DFSan] Add efficient fast16labels instrumentation mode.
Adds the -fast-16-labels flag, which enables efficient instrumentation
for DFSan when the user needs <=16 labels.  The instrumentation
eliminates most branches and most calls to __dfsan_union or
__dfsan_union_load.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D84371
2020-07-29 18:58:47 +00:00
Arthur Eubanks 71d0a2b8a3 [DFSan][NewPM] Port DataFlowSanitizer to NewPM
Reviewed By: ychen, morehouse

Differential Revision: https://reviews.llvm.org/D84707
2020-07-29 10:19:15 -07:00
Joel E. Denny 9f2f3b9de6 [OpenMP] Implement TR8 `present` motion modifier in Clang (1/2)
This patch implements Clang front end support for the OpenMP TR8
`present` motion modifier for `omp target update` directives.  The
next patch in this series implements OpenMP runtime support.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D84711
2020-07-29 12:18:45 -04:00
Johannes Doerfert ee05167cc4 [OpenMP] Allow traits for the OpenMP context selector `isa`
It was unclear what `isa` was supposed to mean so we did not provide any
traits for this context selector. With this patch we will allow *any*
string or identifier. We use the target attribute and target info to
determine if the trait matches. In other words, we will check if the
provided value is a target feature that is available (at the call site).

Fixes PR46338

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D83281
2020-07-29 10:22:27 -05:00
Johannes Doerfert 7db017bf34 [OpenMP][Docs] Update Clang Support docs after D75591 2020-07-29 10:21:05 -05:00
Alexey Bader 8d27be8dba [OpenCL] Add global_device and global_host address spaces
This patch introduces 2 new address spaces in OpenCL: global_device and global_host
which are a subset of a global address space, so the address space scheme will be
looking like:

```
generic->global->host
                          ->device
             ->private
             ->local
constant
```

Justification: USM allocations may be associated with both host and device memory. We
want to give users a way to tell the compiler the allocation type of a USM pointer for
optimization purposes. (Link to the Unified Shared Memory extension:
https://github.com/intel/llvm/blob/sycl/sycl/doc/extensions/USM/cl_intel_unified_shared_memory.asciidoc)

Before this patch USM pointer could be only in opencl_global
address space, hence a device backend can't tell if a particular pointer
points to host or device memory. On FPGAs at least we can generate more
efficient hardware code if the user tells us where the pointer can point -
being able to distinguish between these types of pointers at compile time
allows us to instantiate simpler load-store units to perform memory
transactions.

Patch by Dmitry Sidorov.

Reviewed By: Anastasia

Differential Revision: https://reviews.llvm.org/D82174
2020-07-29 17:24:53 +03:00
Bruno Ricci 517fe058d4
[clang][NFC] clang-format fix after eb10b065f2 2020-07-29 14:55:16 +01:00
Bruno Ricci 1ae63b4179
[clang][NFC] Pass the ASTContext to CXXRecordDecl::setCaptures
In general Decl::getASTContext() is relatively expensive and here the changes
are non-invasive. NFC.
2020-07-29 14:55:15 +01:00
Victor Campos 71bf6dd682 [Driver][ARM] Fix testcase that should only run on ARM
Fix testcase introduced in d1a3396bfb.
2020-07-29 14:35:14 +01:00
Victor Campos d1a3396bfb [Driver][ARM] Disable unsupported features when nofp arch extension is used
A list of target features is disabled when there is no hardware
floating-point support. This is the case when one of the following
options is passed to clang:

 - -mfloat-abi=soft
 - -mfpu=none

This option list is missing, however, the extension "+nofp" that can be
specified in -march flags, such as "-march=armv8-a+nofp".

This patch also disables unsupported target features when nofp is passed
to -march.

Differential Revision: https://reviews.llvm.org/D82948
2020-07-29 14:13:22 +01:00
Nathan Ridge 89247792c5 [clang] Fix ConceptSpecializationExpr::getEndLoc()
Summary:
It returned an invalid location in case of a constrained-parameter
with no explicit arguments.

Reviewers: hokein

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D84613
2020-07-29 02:44:26 -04:00
Chuanqi Xu d3527052fc [NFC] Edit the comment for the return type of await_suspend 2020-07-29 10:20:55 +08:00
Artem Dergachev c26f237cef [analyzer] FuchsiaHandleChecker: Suppress a non-deterministic test failure.
Noticed by Jon Roelofs in https://reviews.llvm.org/D73151#2180499
2020-07-28 18:57:11 -07:00