Commit Graph

62609 Commits

Author SHA1 Message Date
Akira Hatanaka 8db0dbbe2c [CodeGen] Don't create fake FunctionDecls when generating block/byref
copy/dispose helper functions

We found out that these fake functions would cause clang to crash if the
changes proposed in https://reviews.llvm.org/D98799 were made.

The original patch was reverted in f681fd927e
because debug locations were missing in the body of the block byref
helper functions. This patch fixes the bug by calling CreateArtificial
after the calls to StartFunction.

Differential Revision: https://reviews.llvm.org/D104082
2021-06-24 11:45:52 -07:00
Aakanksha Patil 3453f3dd46 [AMDGPU] Add gfx1035 target
Differential Revision: https://reviews.llvm.org/D104804
2021-06-24 14:32:41 -04:00
Yaxun (Sam) Liu 82e03e494f [HIP] Defer operator overloading errors
Although clang is able to defer overloading resolution
diagnostics for common functions. It does not defer
overloading resolution caused diagnostics for overloaded
operators.

This patch extends the existing deferred
diagnostic mechanism and defers a diagnostic caused
by overloaded operator.

Reviewed by: Artem Belevich

Differential Revision: https://reviews.llvm.org/D104505
2021-06-23 23:39:59 -04:00
Peter Collingbourne e655e74a31 AST: Create __va_list in the std namespace even in C.
This ensures that the mangled type names match between C and C++,
which is significant when using -fsanitize=cfi-icall. Ideally we
wouldn't have created this namespace at all, but it's now part of
the ABI (e.g. in mangled names), so we can't change it.

Differential Revision: https://reviews.llvm.org/D104830
2021-06-23 18:59:10 -07:00
Whitney Tsang ab244db1fa [AIX] Emitting diagnostics error for profile options
Only LLVM-based instrumentation profile is supported on AIX.
And it currently must be used with full LTO.

Reviewed By: hubert.reinterpretcast

Differential Revision: https://reviews.llvm.org/D104803
2021-06-24 00:23:28 +00:00
modimo 42b99e094c [Clang] Check for returns_nonnull when deciding to add allocation null checks
Non-throwing allocators currently will always get null-check code. However, if the non-throwing allocator is explicitly annotated with returns_nonnull the null check should be elided.

Testing:
ninja check-all
added test case correctly elides

Reviewed By: bruno

Differential Revision: https://reviews.llvm.org/D102820
2021-06-23 17:15:12 -07:00
Jian Cai 0eac975b51 Reland "[AArch64] handle -Wa,-march="
This reverts commit fd11a26d36, which was
reverted by 9145a3d4ab due to a test
failure on aarch64 backend, e.g.
https://lab.llvm.org/buildbot/#/builders/43/builds/7031. This patch
fixed the test failure.

Reviewed By: DavidSpickett, nickdesaulniers

Differential Revision: https://reviews.llvm.org/D103184
2021-06-23 12:01:57 -07:00
Vitali Lovich be9a87fe9b [clang-format] Add IfMacros option
https://bugs.llvm.org/show_bug.cgi?id=49354

Differential Revision: https://reviews.llvm.org/D102730
2021-06-23 08:51:53 -07:00
Ethan Stewart 5dfdc1812d [OpenMP][AMDGCN] Apply fix for isnan, isinf and isfinite for amdgcn.
This fixes issues with various return types(bool/int) and was already
in place for nvptx headers, adjusted to work for amdgcn. This does
not affect hip as the change is guarded with OPENMP_AMDGCN.
Similar to D85879.

Reviewed By: jdoerfert, JonChesterfield, yaxunl

Differential Revision: https://reviews.llvm.org/D104677
2021-06-23 15:26:09 +01:00
serge-sans-paille a0d05ed848 Handle interactions between reserved identifier and user-defined suffixes
According to https://eel.is/c++draft/over.literal

> double operator""_Bq(long double);  // OK: does not use the reserved identifier _­Bq ([lex.name])
> double operator"" _Bq(long double); // ill-formed, no diagnostic required: uses the reserved identifier _­Bq ([lex.name])

Obey that rule by keeping track of the operator literal name status wrt. leading whitespace.

Fix: https://bugs.llvm.org/show_bug.cgi?id=50644

Differential Revision: https://reviews.llvm.org/D104299
2021-06-23 15:38:42 +02:00
owenca ca7f471585 [clang-format] Fix a bug that indents else-comment-if incorrectly
PR50809

Differential Revision: https://reviews.llvm.org/D104774
2021-06-23 04:57:45 -07:00
Zarko Todorovski 76c931ae42 [AIX][PowerPC] Remove error when specifying mabi=vec-default on AIX
The default Altivec ABI was implemented but the clang error for specifying
its use still remains.  Users could get around this but not specifying the
type of Altivec ABI but we need to remove the error.

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D102094
2021-06-23 07:40:38 -04:00
Hans Wennborg 24037c37b6 Add support for #pragma system_header with -fms-extensions
Clang already supports the pragma prefixed by "GCC" or "clang".

MSVC has more recently added support for the pragma, but without any prefix; see
https://devblogs.microsoft.com/cppblog/broken-warnings-theory/#external-headers

Differential revision: https://reviews.llvm.org/D104770
2021-06-23 13:26:03 +02:00
Zequan Wu f681fd927e Revert "[CodeGen] Don't create fake FunctionDecls when generating block/byref"
That commit causes crash with error "!dbg attachment points at wrong subprogram for function" on iOS platforms.

This reverts commit f4c06bcb67.
2021-06-22 21:48:00 -07:00
Bruno Cardoso Lopes c9aaf34b8d [SemaCXX] Handle lack of TypeSourceInfo on special member functions in templated lambdas
During template instantiation involving templated lambdas, clang
could hit an assertion in `TemplateDeclInstantiator::SubstFunctionType`
since the functions are not associated with any `TypeSourceInfo`:

`assert(OldTInfo && "substituting function without type source info");`

This path is triggered when using templated lambdas like the one added as
a test to this patch. To fix this:

- Create `TypeSourceInfo`s for special members and make sure the template
instantiator can get through all patterns.
- Introduce a `SpecialMemberTypeInfoRebuilder` tree transform to rewrite
such member function arguments. Without this, we get errors like:

`error: only special member functions and comparison operators may be defaulted`

since `getDefaultedFunctionKind` can't properly recognize these functions
as special members as part of `SetDeclDefaulted`.

Fixes PR45828 and PR44848

Differential Revision: https://reviews.llvm.org/D88327
2021-06-22 17:26:05 -07:00
Lei Huang b259740801 [PowerPC][NFC] Clean up builtin sema checks
Cleanup sema checking for 64bit builtins or builtins that require
         specific feature support.

Reviewed By: NeHuang

Differential Revision: https://reviews.llvm.org/D104664
2021-06-22 16:06:28 -05:00
David Tenty 7942ebdf01 [clang] Add cc1 option for dumping layout for all complete types
This change adds an option which, in addition to dumping the record
layout as is done by -fdump-record-layouts, causes us to compute the
layout for all complete record types (rather than the as-needed basis
which is usually done by clang), so that we will dump them as well.
This is useful if we are looking for layout differences across large
code bases without needing to instantiate every type we are interested in.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D104484
2021-06-22 16:27:26 -04:00
Vitali Lovich 64cf5eba06 [clang-format] Add new LambdaBodyIndentation option
Currently the lambda body indents relative to where the lambda signature is located. This instead lets the user
choose to align the lambda body relative to the parent scope that contains the lambda declaration. Thus:

someFunction([] {
  lambdaBody();
});

will always have the same indentation of the body even when the lambda signature goes on a new line:

someFunction(
    [] {
  lambdaBody();
});

whereas before lambdaBody would be indented 6 spaces.

Differential Revision: https://reviews.llvm.org/D102706
2021-06-22 21:46:16 +02:00
Joseph Huber bc768aac2e [OpenMP] Remove OpenMP CUDA Target Parallel compiler flag
Summary:
The changes introduced in D97680 turns this command line option into a no-op so
it can be removed entirely.

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D102940
2021-06-22 15:10:19 -04:00
Akira Hatanaka f4c06bcb67 [CodeGen] Don't create fake FunctionDecls when generating block/byref
copy/dispose helper functions

We found out that these fake functions would cause clang to crash if the
changes proposed in https://reviews.llvm.org/D98799 were made.

Differential Revision: https://reviews.llvm.org/D104082
2021-06-22 11:42:53 -07:00
Fangrui Song 948016228f Improve clang -Wframe-larger-than= diagnostic
Match the style in D104667.

This commit is for non-LTO diagnostics, while D104667 is for LTO and llc diagnostics.
2021-06-22 11:20:49 -07:00
Alexandru Octavian Butiu 78d404a11d [clang][c++20] Fix false warning for unused private fields when a class has only defaulted comparison operators.
Fixes bug 50263

When "unused-private-field" flag is on if you have a struct with private
members and only defaulted comparison operators clang will warn about
unused private fields.

If you where to write the comparison operators by hand no warning is
produced.

This is a bug since defaulting a comparison operator uses all private
members .

The fix is simple, in CheckExplicitlyDefaultedFunction just clear the
list of unused private fields if the defaulted function is a comparison
function.

Differential revision: https://reviews.llvm.org/D102186
2021-06-22 18:40:16 +02:00
Joseph Huber 68d133a3e8 [OpenMP] Simplify GPU memory globalization
Summary:
Memory globalization is required to maintain OpenMP standard semantics for data sharing between
worker and master threads. The GPU cannot share data between its threads so must allocate global or
shared memory to store the data in. Currently this is implemented fully in the frontend using the
`__kmpc_data_sharing_push_stack` and __kmpc_data_sharing_pop_stack` functions to emulate standard
CPU stack sharing. The front-end scans the target region for variables that escape the region and
must be shared between the threads. Each variable then has a field created for it in a global record
type.

This patch replaces this functinality with a single allocation command, effectively mimicing an
alloca instruction for the variables that must be shared between the threads. This will be much
slower than the current solution, but makes it much easier to optimize as we can analyze each
variable independently and determine if it is not captured. In the future, we can replace these
calls with an `alloca` and small allocations can be pushed to shared memory.

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D97680
2021-06-22 10:52:46 -04:00
Graham Hunter a83ce95b09 [clang] Remove unused capture in closure
c6a91ee6aa removed uses of IsMonotonic from OpenMP SIMD codegen,
but that left a capture of the variable unused which upset buildbots
using -Werror.
2021-06-22 15:09:39 +01:00
Graham Hunter c6a91ee6aa [Clang][OpenMP] Monotonic does not apply to SIMD
The codegen for simd constructs was affected by the presence (or
absence) of the 'monotonic' schedule modifier for worksharing
loops. The modifier is only intended to apply to the scheduling of
chunks for a thread, not iterations of a loop inside a chunk.

In addition, the monotonic modifier was applied to worksharing loops
by default if no schedule clause was present; the referenced part of
the OpenMP 4.5 spec in the code (section 2.7.1) only applies if the
user specified a schedule clause with a static kind but no modifier.
Without a user-specified schedule clause we should default to
nonmonotonic scheduling.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D103793
2021-06-22 10:24:11 +01:00
Balázs Kéri d7227a5bc7 [clang][Analyzer] Track null stream argument in alpha.unix.Stream .
The checker contains check for passing a NULL stream argument.
This change should make more easy to identify where the passed pointer
becomes NULL.

Reviewed By: NoQ

Differential Revision: https://reviews.llvm.org/D104640
2021-06-22 11:16:56 +02:00
Nick Desaulniers 8ace121305 [IR] convert warn-stack-size from module flag to fn attr
Otherwise, this causes issues when building with LTO for object files
that use different values.

Link: https://github.com/ClangBuiltLinux/linux/issues/1395

Reviewed By: dblaikie, MaskRay

Differential Revision: https://reviews.llvm.org/D104342
2021-06-21 15:09:25 -07:00
Erich Keane b3634d3e88 Revert "[SYCL][NFC] Ensure SYCL kernel for unique-stable-name is unqualified."
This reverts commit 5013131875.

This patch didn't end up being the solution to the problem.  It "fixed"
our issue but the actual correct solution is something else.  Reverting
as this ends up being unnecessary/extra noise.
2021-06-21 13:23:52 -07:00
Erich Keane 5013131875 [SYCL][NFC] Ensure SYCL kernel for unique-stable-name is unqualified.
Discovered in our downstream, this function that is used to get the type
of the kernel parameter type needs to be unqualified, otherwise when our
downstream uses this function in a slightly different way, the kernel
types no longer match.
2021-06-21 12:51:23 -07:00
Yaxun (Sam) Liu 186f2ac612 [HIP] Add support functions for C++ polymorphic types
Add runtime functions to detect invalid calls to pure or deleted virtual
functions.

Patch by: Siu Chi Chan

Reviewed by: Yaxun Liu

Differential Revision: https://reviews.llvm.org/D104392
2021-06-21 11:41:07 -04:00
Anton Zabaznov a427390558 [OpenCL] Add support of __opencl_c_images feature macro
Reviewed By: svenvh

Differential Revision: https://reviews.llvm.org/D103911
2021-06-21 18:24:07 +03:00
Hans Wennborg 5958dc75ce Try to fix clang/test/Driver/cl-include.c failure
Somewhat speculative. Example failures:
https://lab.llvm.org/buildbot/#/builders/5/builds/8857/steps/9/logs/stdio
https://lab.llvm.org/buildbot/#/builders/123/builds/4621/steps/8/logs/stdio
2021-06-21 17:19:00 +02:00
Hans Wennborg 3063a54722 [clang-cl] Implement /external:I, /external:env, and EXTERNAL_INCLUDE support (PR36003)
This patch does three things:

- Map the /external:I flag to -isystem

- Add support for the /external:env:<var> flag which reads system
  include paths from the <var> environment variable

- Pick up system include dirs EXTERNAL_INCLUDE in addition to the old
  INCLUDE environment variable.

Differential revision: https://reviews.llvm.org/D104387
2021-06-21 15:36:14 +02:00
Bradley Smith 325b670794 [Sema][SVE] Properly match builtin ID when using aux target
Differential Revision: https://reviews.llvm.org/D104539
2021-06-21 12:52:18 +01:00
Zhouyi Zhou 735ad67a4c [clang] NFC: adjust indentation of statements with more than one lines
Hi,

I think it will be more beautiful to adjust indentation of statements with more than one lines.

In function TreeTransform<Derived>::TransformDependentScopeDeclRefExpr
the second line of statement
NestedNameSpecifierLoc QualifierLoc \newline = getDerived().TransformNestedNameSpecifierLoc(E->getQualifierLoc());
is no more indent than the first line

There is a similar case in function TreeTransform<Derived>::TransformUnresolvedMemberExpr

Also I use clang-format to fix above functions

Thanks alot

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D104145
2021-06-21 10:17:10 +08:00
Saleem Abdulrasool decfad7d8e Revert "Re-Revert "DirectoryWatcher: add an implementation for Windows""
This reverts commit fb32de9e97.

Remove the secondary synchronization point as noted by Adrian.  This is
technically only to make the builders happier about tests and should not
be needed.  This also pushes the condition variable setting to after the
watch is actually established (which was the source of the original race
condition, but would normally succeed as the thread shouldn't get put to
sleep immediately on the trigger of the condition variable).

This also was pretested on the chromium builders:
https://ci.chromium.org/ui/p/chromium/builders/try/win_upload_clang/1612/overview.
2021-06-19 09:19:52 -07:00
Melanie Blower 9abaf5c359 Revert "[clang][FPEnv] Clang floatng point model ffp-model=precise enables ffp-contract=on"
This reverts commit a1449a10db.
Seems like my changes to LNT had no effect -- puzzled.
The 21 tests pass on my sandbox with the clang patch but are
failing in exec time in the bot
2021-06-19 08:01:22 -04:00
Markus Böck c9889c44ec [clang-cl] Don't expand /permissive- to /ZC:strictStrings yet
Follow up on rGc70b0e808da8

/Zc:strictStrings is an alias to an option part of the -W group. When the driver tries to render the option back to a string for the cc1 invocation, it sadly gets rendered with the original spelling instead of the alias, causing issues reported here: https://reviews.llvm.org/D103773#inline-989447

I am thinking it's the best to revert this part of the patch until I figured out how to correctly add the arg and until /Zc:strictStrings- exists/is needed.
2021-06-19 13:28:32 +02:00
Melanie Blower a1449a10db [clang][FPEnv] Clang floatng point model ffp-model=precise enables ffp-contract=on
This patch changes the ffp-model=precise to enables -ffp-contract=on
(previously -ffp-model=precise enabled -ffp-contract=fast). This is a
follow-up to Andy Kaylor's comments in the llvm-dev discussion
"Floating Point semantic modes". From the same email thread, I put
Andy's distillation of floating point options and floating point modes
into UsersManual.rst

Differential Revision: https://reviews.llvm.org/D74436
2021-06-19 06:49:27 -04:00
Nico Weber fb32de9e97 Re-Revert "DirectoryWatcher: add an implementation for Windows"
This reverts commit 76f1baa787.

Also reverts 2 follow-ups:

1. Revert "DirectoryWatcher: also wait for the notifier thread"
   This reverts commit 527a1821e6.

2. Revert "DirectoryWatcher: close a possible window of race on Windows"
   This reverts commit a6948da86a.

Makes tests hang, see comments on https://reviews.llvm.org/D88666
2021-06-18 18:51:41 -04:00
Nick Desaulniers 193e41c987 [Clang][Codegen] Add GNU function attribute 'no_profile' and lower it to noprofile
noprofile IR attribute already exists to prevent profiling with PGO;
emit that when a function uses the newly added no_profile function
attribute.

The Linux kernel would like to avoid compiler generated code in
functions annotated with such attribute. We already respect this for
libcalls to fentry() and mcount().

Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80223
Link: https://lore.kernel.org/lkml/CAKwvOdmPTi93n2L0_yQkrzLdmpxzrOR7zggSzonyaw2PGshApw@mail.gmail.com/

Reviewed By: MaskRay, void, phosek, aaron.ballman

Differential Revision: https://reviews.llvm.org/D104475
2021-06-18 13:42:32 -07:00
Matheus Izvekov ced6b204d1 [clang] Implement P2266 Simpler implicit move
This Implements [[http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2266r1.html|P2266 Simpler implicit move]].

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

Reviewed By: Quuxplusone

Differential Revision: https://reviews.llvm.org/D99005
2021-06-18 17:08:59 +02:00
Tomasz Kamiński cc2ef19556 [analyzer] Handle NTTP invocation in CallContext.getCalleeDecl()
This fixes a crash in MallocChecker for the situation when operator new (delete) is invoked via NTTP  and makes the behavior of CallContext.getCalleeDecl(Expr) identical to CallEvent.getDecl().

Reviewed By: vsavchenko

Differential Revision: https://reviews.llvm.org/D103025
2021-06-18 16:32:19 +03:00
Matheus Izvekov 7ddd15cd5d [clang] Exclude function pointers on DefaultedComparisonAnalyzer
This implements a more comprehensive fix than was done at D95409.
Instead of excluding just function pointer subobjects, we also
exclude any user-defined function pointer conversion operators.

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

Reviewed By: rsmith

Differential Revision: https://reviews.llvm.org/D103855
2021-06-18 13:07:47 +02:00
Richard Smith 6aaf4fa288 Bring our handling of -Wframe-larger-than more in line with GCC.
Support -Wno-frame-larger-than (with no =) and make it properly
interoperate with -Wframe-larger-than. Reject -Wframe-larger-than with
no argument.

We continue to support Clang's old spelling, -Wframe-larger-than=, for
compatibility with existing users of that facility.

In passing, stop the driver from accepting and ignoring
-fwarn-stack-size and make it a cc1-only flag as intended.
2021-06-17 20:29:13 -07:00
Zachary Henkel 05d0f1a8ea Frontend: Respect -fno-temp-file when creating a PCH
When creating a PCH file the use of a temp file will be dictated by the
presence or absence of the -fno-temp-file flag. Creating a module file
will always use a temp file via the new ForceUseTemporary flag.

This fixes bug 50033.
2021-06-17 18:34:10 -07:00
Volodymyr Sapsai 722c51473c [clang][AST] Make `getLocalOrImportedSubmoduleID` work with const `Module*`. NFC.
Differential Revision: https://reviews.llvm.org/D104350
2021-06-17 17:29:12 -07:00
jasonliu 4e2aee8d3b [AIX] Remove --as-needed passing into aix linker
Summary:
AIX does not support --as-needed linker options. Remove that option from
aix linker when -lunwind is needed.
For unwinder library, nothing special is needed because by default aix
linker has the as-needed effect for library that's an archive (which is
the case for libunwind on AIX).

Reviewed By: daltenty

Differential Revision: https://reviews.llvm.org/D104314
2021-06-17 17:16:41 +00:00
Stella Stamenova 734d688fbc [clang] Fix a race condition in the build of clangInterpreter
The library depends on Attributes.inc, so it has to depend on the intrinsics_gen target

Reviewed By: v.g.vassilev

Differential Revision: https://reviews.llvm.org/D104311
2021-06-17 10:03:33 -07:00
eahcmrh fc6ec9b98c [Sema] Fix for PR50741
Fixed crash when doing pointer math on a void pointer.

Also, reworked test to use -verify rather than FileCheck.

Reviewed By: erichkeane

Differential Revision: https://reviews.llvm.org/D104424
2021-06-17 16:16:59 +02:00