Commit Graph

88949 Commits

Author SHA1 Message Date
Adam Czachorowski fbfcfdbf68 [clang] Fix assert() crash when checking undeduced arg alignment
There already was a check for undeduced and incomplete types, but it
failed to trigger when outer type (SubstTemplateTypeParm in test) looked
fine, but inner type was not.

Differential Revision: https://reviews.llvm.org/D100667
2021-04-30 16:24:33 +02:00
Anastasia Stulova 3ec82e5195 [OpenCL] Prevent adding vendor extensions for all targets
Removed extension begin/end pragma as it has no effect and
it is added unconditionally for all targets.

Differential Revision: https://reviews.llvm.org/D92244
2021-04-30 14:42:51 +01:00
Florian Hahn 6c31295493
[clang] Refactor mustprogress handling, add it to all loops in c++11+.
Currently Clang does not add mustprogress to inifinite loops with a
known constant condition, matching C11 behavior. The forward progress
guarantee in C++11 and later should allow us to add mustprogress to any
loop (http://eel.is/c++draft/intro.progress#1).

This allows us to simplify the code dealing with adding mustprogress a
bit.

Reviewed By: aaron.ballman, lebedev.ri

Differential Revision: https://reviews.llvm.org/D96418
2021-04-30 14:13:47 +01:00
Tomas Matheson b14a6f06cc [ARM][MVE] vcreateq lane ordering for big endian
Use of bitcast resulted in lanes being swapped for vcreateq with big
endian. Fix this by using vreinterpret. No code change for little
endian. Adds IR lit test.

Differential Revision: https://reviews.llvm.org/D101606
2021-04-30 13:48:05 +01:00
Martin Probst b2780cd744 clang-format: [JS] handle "off" in imports
Previously, the JavaScript import sorter would ignore `// clang-format
off` and `on` comments. This change fixes that. It tracks whether
formatting is enabled for a stretch of imports, and then only sorts and
merges the imports where formatting is enabled, in individual chunks.

This means that there's no meaningful total order when module references are mixed
with blocks that have formatting disabled. The alternative approach
would have been to sort all imports that have formatting enabled in one
group. However that raises the question where to insert the
formatting-off block, which can also impact symbol visibility (in
particular for exports). In practice, sorting in chunks probably isn't a
big problem.

This change also simplifies the general algorithm: instead of tracking
indices separately and sorting them, it just sorts the vector of module
references. And instead of attempting to do fine grained tracking of
whether the code changed order, it just prints out the module references
text, and compares that to the previous text. Given that source files
typically have dozens, but not even hundreds of imports, the performance
impact seems negligible.

Differential Revision: https://reviews.llvm.org/D101515
2021-04-30 14:18:52 +02:00
Alexey Bader 76f84e7729 [Doc] Fix sphinx warnings about wrong code-block format
Differential Revision: https://reviews.llvm.org/D101549
2021-04-30 11:40:10 +03:00
Keith Walker 109bf25e2c [AArch64] Change __ARM_FEATURE_FP16FML macro name to __ARM_FEATURE_FP16_FML
The "Arm C Language extensions" document (the current version can be
found at https://developer.arm.com/documentation/101028/0012/?lang=en)
states that the name of the feature test macro for the FP16 FML extension
is __ARM_FEATURE_FP16_FML.

Differential Revision: https://reviews.llvm.org/D101532
2021-04-30 11:03:15 +01:00
Evgeny Leviant c81ec19fba Fix -fdebug-pass-structure test case
Pass structure can change when -O0 is given and extensions are used.
2021-04-30 10:18:23 +03:00
Wang, Pengfei e0c7db7d8c [MS] Preserve base register %rbx around cpuid
This patch copies implementation from cpuid.h, which preserve base register %rbx around cpuid. It fixes PR50133.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D101338
2021-04-30 10:16:25 +08:00
Akira Hatanaka 809435e390 [Sema] Don't set BlockDecl's DoesNotEscape bit if the parameter type of
the function the block is passed to isn't a block pointer type

This patch fixes a bug where a block passed to a function taking a
parameter that doesn't have a block pointer type (e.g., id or reference
to a block pointer) was marked as noescape.

This partially fixes PR50043.

rdar://77030453

Differential Revision: https://reviews.llvm.org/D101097
2021-04-29 16:19:48 -07:00
Akira Hatanaka 2e1d9ebd46 [ObjC][ARC] Don't enter the cleanup scope if the initializer expression
isn't an ExprWithCleanups

This patch fixes a bug where a temporary ObjC pointer is released before
the end of the full expression.

This fixes PR50043.

rdar://77030453

Differential Revision: https://reviews.llvm.org/D101502
2021-04-29 16:04:30 -07:00
Alex Lorenz 6b938d2ead Recommit "[clang][driver] Use the provided arch name for a Darwin target triple
This ensures that the Darwin driver uses a consistent target triple
representation when the triple is printed out to the user.

This reverts the revert commit ab0df6c034.

Differential Revision: https://reviews.llvm.org/D100807
2021-04-29 15:00:40 -07:00
Vladimir Vereschaka 74d9a76ad3 [CMake] Stop using c++ subdirectory for libc++ on Win to ARM Linux cross builds. NFC
Updated cross Win-x-ARM Linux toolchain cmake cache file in according of
the following changes: https://reviews.llvm.org/D100869

Stop using use c++ subdirectory for libc++ library
2021-04-29 14:23:33 -07:00
Dan Liew 2d42b2ee7b [ASan] Rename `-fsanitize-address-destructor-kind=` to drop the `-kind` suffix.
Renaming the option is based on discussions in https://reviews.llvm.org/D101122.

It is normally not a good idea to rename driver flags but this flag is
new enough and obscure enough that it is very unlikely to have adopters.

While we're here also drop the `<kind>` metavar. It's not necessary and
is actually inconsistent with the documentation in
`clang/docs/ClangCommandLineReference.rst`.

Differential Revision: https://reviews.llvm.org/D101491
2021-04-29 11:55:42 -07:00
Petr Hosek ba631240ae [CMake] Set correct CXX_FLAGS for relative-vtables variants
We overrite CXX_FLAGS to enable relative vtables, but doing so
overwrites generic Fuchsia CXX_FLAGS leading to a build failure
on Windows.

Differential Revision: https://reviews.llvm.org/D101551
2021-04-29 10:34:37 -07:00
Chirag Khandelwal c204106188 [Clang][OpenMP] Frontend work for sections - D89671
This patch is child of D89671, contains the clang
implementation to use the OpenMP IRBuilder's section
construct.

Co-author: @anchu-rajendran

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D91054
2021-04-29 19:52:27 +05:30
David Zarzycki 3eb2be67b9 Unbreak no-asserts testing 2021-04-29 10:01:37 -04:00
Anastasia Stulova 1ed6e87ab0 [OpenCL][Docs] Misc updates to C++ for OpenCL and offline compilation
Differential Revision: https://reviews.llvm.org/D101092
2021-04-29 14:15:07 +01:00
Anastasia Stulova 8fb0d6df11 [OpenCL][Docs] Describe extension for legacy atomics with generic addr space.
This extension is primarily targeting SPIR-V compilations flow
as the IR translation is the same between 1.x and 2.x atomics.

Differential Revision: https://reviews.llvm.org/D101089
2021-04-29 14:02:34 +01:00
Nathan Sidwell 0ff41c2ebc Update libstdc++ hack comment
This libstc++ hack isn't ready for removal. Updating the comment to
note what I found. While I have not proven Ville's
__is_throw_swappable patch made this go away, that patch did remove
the use of noexcept(noexcept(swap(....))). I'm not sure when gcc grew
deferred noexcept parsing.

Differential Revision: https://reviews.llvm.org/D101441
2021-04-29 03:57:10 -07:00
Marek Kurdej 40c2d6188b [clang-format] Fix build on gcc < 7 introduced in rG9363aa9.
This fixes another bogus build error on gcc, e.g. https://lab.llvm.org/buildbot/#/builders/110/builds/2974.

/home/ssglocal/clang-cmake-x86_64-avx2-linux/clang-cmake-x86_64-avx2-linux/llvm/clang/lib/Format/TokenAnnotator.cpp:3412:34: error: binding ‘const clang::format::FormatStyle’ to reference of type ‘clang::format::FormatStyle&’ discards qualifiers
   auto ShouldAddSpacesInAngles = [&Style = this->Style,
                                  ^
2021-04-29 10:07:04 +02:00
Marek Kurdej 6e5082bbc4 [clang-format] Fix build on gcc < 7 introduced in rG9363aa9.
This fixes a bogus build error on gcc, e.g. https://lab.llvm.org/buildbot/#/builders/110/builds/2973.

/home/ssglocal/clang-cmake-x86_64-avx2-linux/clang-cmake-x86_64-avx2-linux/llvm/clang/lib/Format/TokenAnnotator.cpp:3097:53: error: binding ‘const clang::SourceRange’ to reference of type ‘clang::SourceRange&’ discards qualifiers
   auto HasExistingWhitespace = [&Whitespace = Right.WhitespaceRange]() {
                                                     ^
2021-04-29 09:57:34 +02:00
Evgeny Leviant 6a0283d0d2 [NewPM] Add an option to dump pass structure
Patch adds -debug-pass-structure option to dump pass structure when
new pass manager is used.

Differential revision: https://reviews.llvm.org/D99599
2021-04-29 10:29:42 +03:00
Marek Kurdej 9363aa90bf [clang-format] Add `SpacesInAngles: Leave` option to keep spacing inside angle brackets as is.
A need for such an option came up in a few libc++ reviews. That's because libc++ has both code in C++03 and newer standards.
Currently, it uses `Standard: C++03` setting for clang-format, but this breaks e.g. u8"string" literals.
Also, angle brackets are the only place where C++03-specific formatting needs to be applied.

Reviewed By: MyDeveloperDay, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D101344
2021-04-29 08:58:50 +02:00
Dan Liew 1bbbcff99d [NFC] Rename SanitizeAddressDtorKind codegen opt to not have `Kind` suffix.
This is post commit follow up based on discussions in
https://reviews.llvm.org/D101122.

Differential Revision: https://reviews.llvm.org/D101490

(cherry picked from commit f4c7e82d1b21e637c4e0c53125b126c407d8bdbf)
2021-04-28 18:37:16 -07:00
Denys Petrov b30521c28a [analyzer] Wrong type cast occurs during pointer dereferencing after type punning
Summary: During pointer dereferencing CastRetrievedVal uses wrong type from the Store after type punning. Namely, the pointer casts to another type and then assigns with a value of one more another type. It produces NonLoc value when Loc is expected.

Differential Revision: https://reviews.llvm.org/D89055

Fixes:
https://bugs.llvm.org/show_bug.cgi?id=37503
https://bugs.llvm.org/show_bug.cgi?id=49007
2021-04-29 01:03:38 +03:00
Petr Hosek ea12d779bc [libc++] Support per-target __config_site in per-target runtime build
When using the per-target runtime build, it may be desirable to have
different __config_site headers for each target where all targets cannot
share a single configuration.

The layout used for libc++ headers after this change is:

```
include/
  c++/
    v1/
      <libc++ headers except for __config_site>
  <target1>/
    c++/
      v1/
        __config_site
  <target2>/
    c++/
      v1/
        __config_site
  <other targets>
```

This is the most optimal layout since it avoids duplication, the only
headers that's per-target is __config_site, all other headers are
shared across targets. This also means that we no need two
-isystem flags: one for the target-agnostic headers and one for
the target specific headers.

Differential Revision: https://reviews.llvm.org/D89013
2021-04-28 14:27:16 -07:00
Arthur Eubanks 6d8d133862 Revert "[Clang] -Wunused-but-set-parameter and -Wunused-but-set-variable"
This reverts commit 9b0501abc7.

False positives reported in D100581.
2021-04-28 12:47:18 -07:00
Ryan Santhirarajan 0395f9e70b [ARM] Neon Polynomial vadd Intrinsic fix
The Neon vadd intrinsics were added to the ARMSIMD intrinsic map,
however due to being defined under an AArch64 guard in arm_neon.td,
were not previously useable on ARM. This change rectifies that.

It is important to note that poly128 is not valid on ARM, thus it was
extracted out of the original arm_neon.td definition and separated
for the sake of AArch64.

Reviewed By: DavidSpickett

Differential Revision: https://reviews.llvm.org/D100772
2021-04-28 11:59:40 -07:00
Nico Weber 671f0e2e18 [clang] Make libBasic not depend on MC
Reduces numbers of files built for clang-format from 575 to 449.

Requires two small changes:

1. Don't use llvm::ExceptionHandling in LangOptions. This isn't
   even quite the right type since we don't use all of its values.
   Tweaks the changes made in:
   - https://reviews.llvm.org/D93215
   - https://reviews.llvm.org/D93216

2. Move section name validation code added (long ago) in commit 30ba67439 out
   of libBasic into Sema and base the check on the triple. This is a bit less
   OOP-y, but completely in line with what we do in many other places in Sema.

No behavior change.

Differential Revision: https://reviews.llvm.org/D101463
2021-04-28 12:16:22 -04:00
Valeriy Savchenko 602c8b4db5 [analyzer][NFC] Fix tests failing after a rebase 2021-04-28 18:55:20 +03:00
Valeriy Savchenko ab5823867c [analyzer] Find better description for tracked symbolic values
When searching for stores and creating corresponding notes, the
analyzer is more specific about the target region of the store
as opposed to the stored value.  While this description was tweaked
for constant and undefined values, it lacked in the most general
case of symbolic values.

This patch tries to find a memory region, where this value is stored,
to use it as a better alias for the value.

rdar://76645710

Differential Revision: https://reviews.llvm.org/D101041
2021-04-28 18:37:38 +03:00
Valeriy Savchenko e273918038 [analyzer] Track leaking object through stores
Since we can report memory leaks on one variable, while the originally
allocated object was stored into another one, we should explain
how did it get there.

rdar://76645710

Differential Revision: https://reviews.llvm.org/D100852
2021-04-28 18:37:38 +03:00
Valeriy Savchenko 61ae2db2d7 [analyzer] Adjust the reported variable name in retain count checker
When reporting leaks, we try to attach the leaking object to some
variable, so it's easier to understand.  Before the patch, we always
tried to use the first variable that stored the object in question.
This can get very confusing for the user, if that variable doesn't
contain that object at the moment of the actual leak.  In many cases,
the warning is dismissed as false positive and it is effectively a
false positive when we fail to properly explain the warning to the
user.

This patch addresses the bigest issue in cases like this.  Now we
check if the variable still contains the leaking symbolic object.
If not, we look for the last variable to actually hold it and use
that variable instead.

rdar://76645710

Differential Revision: https://reviews.llvm.org/D100839
2021-04-28 18:37:37 +03:00
Valeriy Savchenko 1dad8c5036 [analyzer][NFC] Remove duplicated work from retain count leak report
Allocation site is the key location for the leak checker.  It is a
uniqueing location for the report and a source of information for
the warning's message.

Before this patch, we calculated and used it twice in bug report and
in bug report visitor.  Such duplication is not only harmful
performance-wise (not much, but still), but also design-wise.  Because
changing something about the end piece of the report should've been
repeated for description as well.

Differential Revision: https://reviews.llvm.org/D100626
2021-04-28 18:37:37 +03:00
David Candler b8baa2a913 [ARM][AArch64] Require appropriate features for crypto algorithms
This patch changes the AArch32 crypto instructions (sha2 and aes) to
require the specific sha2 or aes features. These features have
already been implemented and can be controlled through the command
line, but do not have the expected result (i.e. `+noaes` will not
disable aes instructions). The crypto feature retains its existing
meaning of both sha2 and aes.

Several small changes are included due to the knock-on effect this has:

- The AArch32 driver has been modified to ensure sha2/aes is correctly
  set based on arch/cpu/fpu selection and feature ordering.
- Crypto extensions are permitted for AArch32 v8-R profile, but not
  enabled by default.
- ACLE feature macros have been updated with the fine grained crypto
  algorithms. These are also used by AArch64.
- Various tests updated due to the change in feature lists and macros.

Reviewed By: lenary

Differential Revision: https://reviews.llvm.org/D99079
2021-04-28 16:26:18 +01:00
Nico Weber 5d493291bd [clang] remove dead code after 2a1332245f
Commit 2a1332245f extracted this code to a new function checkSectionName() and
added a call to it, but didn't remove the original code. The original code
is dead since the checkSectionName() early return would fire when it would
trigger. (If it weren't dead, it'd make clang crash since
err_attribute_section_invalid_for_target now takes two args instead of just the
one that's passed.)

No behavior change.

Differential Revision: https://reviews.llvm.org/D101457
2021-04-28 10:27:31 -04:00
Anton Zabaznov f0efc00751 [OpenCL] Introduce new method for validating OpenCL target
Language options are not available when a target is being created,
thus, a new method is introduced. Also, some refactoring is done,
such as removing OpenCL feature macros setting from TargetInfo.

Reviewed By: Anastasia

Differential Revision: https://reviews.llvm.org/D101087
2021-04-28 16:00:02 +03:00
Alexey Bataev c835630c25 [OPENMP]Fix PR49098: respect firstprivate of declare target variable.
Need to respect mapping/privatization of declare target variables in the
target regions if explicitly specified by the user.

Differential Revision: https://reviews.llvm.org/D99530
2021-04-28 05:39:10 -07:00
Hans Wennborg 2d37f2115d Try to fix clang/test/Driver/cl-options.c on non-x86 hosts
The /QIntel-jcc-erratum flag only works when targeting x86,
so pass --target to the driver to do that also on non-x86 hosts.
2021-04-28 11:57:09 +02:00
Hans Wennborg 789549bea4 [clang-cl] Map /QIntel-jcc-erratum to -mbranches-within-32B-boundaries 2021-04-28 11:10:08 +02:00
Hsiangkai Wang b358a2be52 [RISCV] Remove riscv32 test cases for vector intrinsics. 2021-04-28 15:54:25 +08:00
Petr Hosek 36430d44ed [Driver] Use normalized triples for per-target runtimes
This is a partial revert of b4537c3f51
based on the discussion in https://reviews.llvm.org/D101194. Rather
than using the getMultiarchTriple, we use the getTripleString.
2021-04-27 22:31:36 -07:00
Nico Weber 0f1137ba79 [clang/Basic] Make TargetInfo.h not use DataLayout again
Reverts parts of https://reviews.llvm.org/D17183, but keeps the
resetDataLayout() API and adds an assert that checks that datalayout string and
user label prefix are in sync.

Approach 1 in https://reviews.llvm.org/D17183#2653279
Reduces number of TUs build for 'clang-format' from 689 to 575.

I also implemented approach 2 in D100764. If someone feels motivated
to make us use DataLayout more, it's easy to revert this change here
and go with D100764 instead. I don't plan on doing more work in this
area though, so I prefer going with the smaller, more self-consistent change.

Differential Revision: https://reviews.llvm.org/D100776
2021-04-27 22:26:10 -04:00
Jim Radford 06d06f2f64 [CMake][llvm] avoid conflict w/ (and use when available) new builtin check_linker_flag
Match the API for the new check_linker_flag and use it directly when
available, leaving the old code as a fallback.

Differential Revision: https://reviews.llvm.org/D100901
2021-04-27 16:41:28 -07:00
Petr Hosek a921d2d2fb [Driver] Add -print-multiarch
This is useful in runtimes build for example which currently try to
guess the correct triple where to place libraries in the multiarch
layout.  Using this flag, the build system can get the correct triple
directly by querying Clang.

Differential Revision: https://reviews.llvm.org/D101400
2021-04-27 16:04:54 -07:00
Samuel Thibault e37c8fd364 Hurd: Clean up Debian multiarch /usr/include/<triplet>
This is a follow-up of 35dd6470de for the Hurd case, to avoid the
duplication of the i386-gnu path, already provided by
Hurd::getMultiarchTriple.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D101324
2021-04-27 13:36:12 -07:00
Fangrui Song bf9eef92b6 Gnu: Replace with a GCCInstallation.isValid() check with assert 2021-04-27 13:31:37 -07:00
Samuel Thibault b13e913b31 hurd: Clean up test
- Unsupported Windows to drop backslashes code
- Upgrade to current gcc 10 version

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D101347
2021-04-27 13:19:17 -07:00
Samuel Thibault 932e8c3241 hurd: Detect libstdc++ include paths on Debian Hurd i386
This is a follow-up of e92d2b80c6 ("[Driver] Detect libstdc++ include
paths for native gcc (-m32 and -m64) on Debian i386") for the Debian Hurd
case, which has the same multiarch name reduction from i686 to i386.
i386-linux-gnu is actually Linux-only, so this moves the code of that commit
to Linux.cpp, and adds the same to Hurd.cpp

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D101331
2021-04-27 13:04:41 -07:00