platform/upstream/llvm.git
18 months ago[NFC][libc++] Removes incorrect sliceExpr friend.
Mark de Wever [Sat, 15 Apr 2023 15:01:38 +0000 (17:01 +0200)]
[NFC][libc++] Removes incorrect sliceExpr friend.

There is no type named sliceExpr, so it's likely a misspelling of
either slice_array or __slice_expr. Neither of which appear to
need the friend declaration.

This may indicate a unimplemented bit of `<valarray`, but ¯\_(ツ)_/¯
Nobody uses it anyway.

(Commit message provided by @EricWF.)

This reverts commit e13c43b229527234ec99f7f03aff3e1560c259c8.

18 months agoRevert "[NFC][libc++] Removes sliceExpr friend."
Mark de Wever [Sat, 15 Apr 2023 14:56:50 +0000 (16:56 +0200)]
Revert "[NFC][libc++] Removes sliceExpr friend."

This reverts commit d5193e34b81fb3e9c27aea541516112d8a5f708d.

Reverted at @EricWF's request so it can be relanded with a better commit
message.

18 months ago[clang-tidy][NFC] Fix format of header file comment in MisleadingCaptureDefaultByValu...
Carlos Galvez [Sat, 15 Apr 2023 14:49:01 +0000 (14:49 +0000)]
[clang-tidy][NFC] Fix format of header file comment in MisleadingCaptureDefaultByValueCheck.h

18 months agoRevert "[clang-tidy] Add misc-header-include-cycle check"
Piotr Zegar [Sat, 15 Apr 2023 13:16:35 +0000 (13:16 +0000)]
Revert "[clang-tidy] Add misc-header-include-cycle check"

This reverts commit 9ece8753d5e6f49c31c2d988ef69225c036b25e0.

18 months ago[Matrix] Split off transpose + dot product tests.
Florian Hahn [Sat, 15 Apr 2023 13:06:46 +0000 (14:06 +0100)]
[Matrix] Split off transpose + dot product tests.

18 months ago[clang-tidy] Add misc-header-include-cycle check
Piotr Zegar [Sat, 15 Apr 2023 12:39:25 +0000 (12:39 +0000)]
[clang-tidy] Add misc-header-include-cycle check

Check detects cyclic #include dependencies between user-defined headers.

Reviewed By: njames93

Differential Revision: https://reviews.llvm.org/D144828

18 months ago[libc] Add `fetch_or` to the atomic interface
Joseph Huber [Tue, 11 Apr 2023 20:08:59 +0000 (15:08 -0500)]
[libc] Add `fetch_or` to the atomic interface

Summary:
This patch adds `fetch_or`. It is mainly useful for querying and set a
bit's status without using the more expensive `exchange` functions.

18 months ago[clang-tidy][NFC] Improve doc of cppcoreguidelines-misleading-capture-default-by...
Carlos Galvez [Sat, 15 Apr 2023 10:16:49 +0000 (10:16 +0000)]
[clang-tidy][NFC] Improve doc of cppcoreguidelines-misleading-capture-default-by-value

Also fix ordering in Release Notes.

Differential Revision: https://reviews.llvm.org/D148424

18 months ago[NFC][libc++] Removes sliceExpr friend.
Mark de Wever [Fri, 14 Apr 2023 18:00:51 +0000 (20:00 +0200)]
[NFC][libc++] Removes sliceExpr friend.

The class is never defined. This was discovered while validating modules
in libc++.

Reviewed By: #libc, philnik

Differential Revision: https://reviews.llvm.org/D148357

18 months agoRevert "Revert "[CMake] Bumps minimum version to 3.20.0.""
Mark de Wever [Sat, 15 Apr 2023 11:12:04 +0000 (13:12 +0200)]
Revert "Revert "[CMake] Bumps minimum version to 3.20.0.""

This reverts commit 92523a35a827539db8557bbc3ecab7f9ea3f6ade.

Reland to see whether CIs are updated.

18 months ago[libc++] Removes Clang 14 support.
Mark de Wever [Fri, 14 Apr 2023 18:12:27 +0000 (20:12 +0200)]
[libc++] Removes Clang 14 support.

Per our policy we only support the last two releases.

Reviewed By: #libc, EricWF, philnik

Differential Revision: https://reviews.llvm.org/D148359

18 months ago[clang-tidy] Fix typedefs handling in bugprone-dangling-handle
Piotr Zegar [Sat, 15 Apr 2023 10:29:38 +0000 (10:29 +0000)]
[clang-tidy] Fix typedefs handling in bugprone-dangling-handle

Using 'hasUnqualifiedDesugaredType' to skip all type aliases when
checking for handle.

Fixes #38779

Reviewed By: carlosgalvezp

Differential Revision: https://reviews.llvm.org/D148418

18 months ago[gn build] Port eedbe81b1c6d
LLVM GN Syncbot [Sat, 15 Apr 2023 10:21:07 +0000 (10:21 +0000)]
[gn build] Port eedbe81b1c6d

18 months ago[clang-tidy] Exclude template instantiations in modernize-use-override
Piotr Zegar [Sat, 15 Apr 2023 10:07:45 +0000 (10:07 +0000)]
[clang-tidy] Exclude template instantiations in modernize-use-override

Added IgnoreTemplateInstantiations option to modernize-use-override
check. Allows to ignore virtual function overrides that are part of
template instantiations. This can be useful in cases where the use
of the "override" keyword is not appropriate or causes issues with
template specialization.

Fixes #38276.

Reviewed By: carlosgalvezp

Differential Revision: https://reviews.llvm.org/D147924

18 months ago[clang] Mark CWG2331 as N/A
Vlad Serebrennikov [Sat, 15 Apr 2023 10:15:05 +0000 (13:15 +0300)]
[clang] Mark CWG2331 as N/A

[[https://wg21.link/p1787 | P1787]]: CWG2331 is resolved by defining lookup from complete-class contexts and out-of-line member definitions.
Wording: The declaration set is the result of a single search in the scope of C for N from immediately after the class-specifier of C if P is in a complete-class context of C or from P otherwise. ([class.member.lookup]/4)

Reviewed By: #clang-language-wg, shafik

Differential Revision: https://reviews.llvm.org/D148260

18 months ago[clang-tidy] Apply cppcoreguidelines-avoid-capture-default-when-capturin-this only...
Carlos Galvez [Fri, 14 Apr 2023 06:39:12 +0000 (06:39 +0000)]
[clang-tidy] Apply cppcoreguidelines-avoid-capture-default-when-capturin-this only to by-value capture default

Since Cpp Core Guidelines have accepted the change in the rules:
https://github.com/isocpp/CppCoreGuidelines/commit/3c90d590e138c3a1e4eb59234e410e00545326de

Also rename the check accordingly.

Differential Revision: https://reviews.llvm.org/D148340

18 months ago[libunwind] Sync Unwind_AppleExtras.cpp with downstream version
Louis Dionne [Fri, 14 Apr 2023 16:49:03 +0000 (17:49 +0100)]
[libunwind] Sync Unwind_AppleExtras.cpp with downstream version

Both had diverged in a few ways, so this brings them both back in sync.

Differential Revision: https://reviews.llvm.org/D148351

18 months ago[RISCV] Optimize multiplication with immediates
Ben Shi [Sat, 15 Apr 2023 09:10:06 +0000 (17:10 +0800)]
[RISCV] Optimize multiplication with immediates

The optimization of (mul x, c) to (ADD (SLLI x, i0), (SLLI x, i1))
is only enabled for i32 multiplication on rv64, because of
the regression in i64 multiplication on rv32.

However we can change the condition to that the immediate 'c'
should only be used once, then the above regression can also be
avoided, and ohter chances of optimization can be enabled.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D147410

18 months ago[clang-tidy] Add support for long double in bugprone-incorrect-roundings
Piotr Zegar [Sat, 15 Apr 2023 08:34:41 +0000 (08:34 +0000)]
[clang-tidy] Add support for long double in bugprone-incorrect-roundings

Support all floating point representations for an 0.5 floating const.
Added missing tests.

Depend on D147906.

Reviewed By: carlosgalvezp

Differential Revision: https://reviews.llvm.org/D147908

18 months ago[clang-tidy] Avoid float compare in bugprone-incorrect-roundings
Piotr Zegar [Sat, 15 Apr 2023 08:34:04 +0000 (08:34 +0000)]
[clang-tidy] Avoid float compare in bugprone-incorrect-roundings

Using APFloat to compare floating numbers instead of float/double.

Fixes: #46424

Reviewed By: carlosgalvezp

Differential Revision: https://reviews.llvm.org/D147906

18 months agoFix uninitialized pointer members in Target/X86
Akshay Khadse [Sat, 15 Apr 2023 06:00:45 +0000 (14:00 +0800)]
Fix uninitialized pointer members in Target/X86

Reviewed By: LuoYuanke

Differential Revision: https://reviews.llvm.org/D148312

18 months ago[InstSimplify] Precommit tests for dominate conditions are not single predecessor...
chenglin.bi [Sat, 15 Apr 2023 08:12:31 +0000 (16:12 +0800)]
[InstSimplify] Precommit tests for dominate conditions are not single predecessor; NFC

18 months ago[NFC][lsan] Add GetCurrentThreadId wrapper for GetCurrentThread
Vitaly Buka [Fri, 14 Apr 2023 23:22:54 +0000 (16:22 -0700)]
[NFC][lsan] Add GetCurrentThreadId wrapper for GetCurrentThread

I am going to change return type of GetCurrentThreadId() in the next
patch.

Differential Revision: https://reviews.llvm.org/D148394

18 months ago[test][sanitizer] Add another stress test for pthread_create
Vitaly Buka [Sat, 15 Apr 2023 05:38:58 +0000 (22:38 -0700)]
[test][sanitizer] Add another stress test for pthread_create

18 months ago[NFC][sanitizer] Return nullptr instead of 0
Vitaly Buka [Sat, 15 Apr 2023 00:18:04 +0000 (17:18 -0700)]
[NFC][sanitizer] Return nullptr instead of 0

18 months ago[GISel] Legalize G_FSUB to G_FADD + G_FNEG even if G_FNEG is illegal
Sergei Barannikov [Thu, 13 Apr 2023 01:42:07 +0000 (04:42 +0300)]
[GISel] Legalize G_FSUB to G_FADD + G_FNEG even if G_FNEG is illegal

`G_FNEG` used to be legalized to `G_FSUB -0, x` causing infinite loop.
This is no longer the case after D84287.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D148187

18 months agoGuard against dereferencing a nullptr
Akshay Khadse [Sat, 15 Apr 2023 03:28:50 +0000 (11:28 +0800)]
Guard against dereferencing a nullptr

In `lib/CodeGen/PrologEpilogInserter.cpp` file, `RS` is assigned via `RS = TRI->requiresRegisterScavenging(MF) ? new RegScavenger() : nullptr;`. This means that `RS` can be `nullptr`. While executing the `TFI->processFunctionBeforeFrameFinalized(MF, RS);`, the `RS` can be dereferenced in the call `RS->enterBasicBlock(MBB);` in file `lib/Target/AMDGPU/SIFrameLowering.cpp`

Reviewed By: skan, arsenm

Differential Revision: https://reviews.llvm.org/D146791

18 months ago[TableGen] Make InlinePatternFragments a member of TreePatternNode again. NFC
Craig Topper [Sat, 15 Apr 2023 02:40:56 +0000 (19:40 -0700)]
[TableGen] Make InlinePatternFragments a member of TreePatternNode again. NFC

Now that we use IntrusiveRefCntPtr instead of std::shared_ptr
we don't need to pass a TreePatternNodePtr to this method.

18 months ago[RISCV] Move RISCVInstrInfoZihintntl.td include out of the vendor extension section...
Craig Topper [Sat, 15 Apr 2023 02:30:45 +0000 (19:30 -0700)]
[RISCV] Move RISCVInstrInfoZihintntl.td include out of the vendor extension section. NFC

18 months ago[hwasan] [test] fix test broken by argument promotion pass
Florian Mayer [Sat, 15 Apr 2023 01:50:22 +0000 (18:50 -0700)]
[hwasan] [test] fix test broken by argument promotion pass

18 months agoRevert D148384 "[Demangle] replace use of llvm::StringView w/ std::string_view"
Fangrui Song [Sat, 15 Apr 2023 01:42:11 +0000 (18:42 -0700)]
Revert D148384 "[Demangle] replace use of llvm::StringView w/ std::string_view"

This reverts commit 3e559509b426b6aae735a7f57dbdaed1041d2622 and e0c4ffa796b553fa78c638a9584c05ac21fe07d5.

This still breaks Windows builds.

In addition, `#include <llvm/ADT/StringViewExtras.h>` in
llvm/include/llvm/Demangle/ItaniumDemangle.h is a library layering violation
(LLVMDemangle is the lowest LLVM library and cannot depend on LLVMSupport).

18 months ago[NewPM] Use PassID instead of pass name
Prem Chintalapudi [Sat, 15 Apr 2023 00:35:07 +0000 (17:35 -0700)]
[NewPM] Use PassID instead of pass name

PrintIRInstrumentation::shouldPrintAfterPass accepts a pass ID instead of a pass name

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D147394

18 months ago[MC] Add section flag 'l' for SHF_X86_64_LARGE
Arthur Eubanks [Fri, 14 Apr 2023 18:06:17 +0000 (11:06 -0700)]
[MC] Add section flag 'l' for SHF_X86_64_LARGE

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D148358

18 months ago[asan][test] Fix use-after-scope-capture test after D148269
Paul Kirth [Fri, 14 Apr 2023 23:51:34 +0000 (23:51 +0000)]
[asan][test] Fix use-after-scope-capture test after D148269

After enabling ArgPromotion at lower opt levels, the body of this test
was optimized away, and the CHECK lines no longer functioned.

Setting -O0 is a hammer, but gets the test passing again, until code owners
can find a better solution.

Reviewed By: fmayer

Differential Revision: https://reviews.llvm.org/D148396

18 months ago[NFC][lsan] Move SetCurrentThread call
Vitaly Buka [Fri, 14 Apr 2023 22:43:56 +0000 (15:43 -0700)]
[NFC][lsan] Move SetCurrentThread call

Future patch will set the current context as well.
Existing callsite requires additional lock to find context.

Differential Revision: https://reviews.llvm.org/D148390

18 months ago[Demangle] fix windows build
Nick Desaulniers [Fri, 14 Apr 2023 23:25:11 +0000 (16:25 -0700)]
[Demangle] fix windows build

Fixes diagnostics reported against
https://reviews.llvm.org/D148384

https://lab.llvm.org/buildbot/#/builders/127/builds/46749/steps/4/logs/stdio

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D148392

18 months ago[ValueTracking] Add `shl nsw %val, %cnt != 0` if `%val != 0`.
Noah Goldstein [Fri, 14 Apr 2023 19:34:23 +0000 (14:34 -0500)]
[ValueTracking] Add `shl nsw %val, %cnt != 0` if `%val != 0`.

Link: https://alive2.llvm.org/ce/z/mxZLJn
Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D147898

18 months ago[ValueTracking] Use maximum shift count in `shl` when determining if `shl` can be...
Noah Goldstein [Sun, 9 Apr 2023 21:27:57 +0000 (16:27 -0500)]
[ValueTracking] Use maximum shift count in `shl` when determining if `shl` can be zero.

Previously only return `shl` non-zero if the shift value was `1`. We
can expand this if we have some bounds on the shift count.

For example:
    ```
    %cnt = and %c, 16 ; Max cnt == 16
    %val = or %v, 4 ; val[2] is known one
    %shl = shl %val, %cnt ; (val.known.one << cnt.maxval) != 0
    ```

Differential Revision: https://reviews.llvm.org/D147897

18 months ago[ValueTracking] Add more tests for `shl` isKnownNonZero; NFC
Noah Goldstein [Sun, 9 Apr 2023 22:11:27 +0000 (17:11 -0500)]
[ValueTracking] Add more tests for `shl` isKnownNonZero; NFC

Differential Revision: https://reviews.llvm.org/D147896

18 months agoAccount for PATCHABLE instrs in Branch Relaxation
Daniel Hoekwater [Tue, 11 Apr 2023 00:09:59 +0000 (17:09 -0700)]
Account for PATCHABLE instrs in Branch Relaxation

PATCHABLE_* instructions expand to up to 36-byte
sleds. Updating the size of PATCHABLE instructions
causes them to be outlined, so we need to add a
check to prevent the outliner from considering
basic blocks that contain PATCHABLE instructions.

Differential Revision: https://reviews.llvm.org/D147982

18 months ago[flang] Remove `ignoring all compiler directives` warning
V Donaldson [Wed, 12 Apr 2023 22:37:19 +0000 (15:37 -0700)]
[flang] Remove `ignoring all compiler directives` warning

The explicit `ignoring all compiler directives` reminder warning is no
longer accurate.  Any similar, more accurate message is best generated
by the front end (change pending).

18 months ago[MCParser] Reject processor-specific section flags not known by the current target
Fangrui Song [Fri, 14 Apr 2023 23:06:12 +0000 (16:06 -0700)]
[MCParser] Reject processor-specific section flags not known by the current target

Catch accidentally used flags and match MCSectionELF.cpp
`MCSectionELF::printSwitchToSection`.

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D148386

18 months ago[Demangle] replace use of llvm::StringView w/ std::string_view
Nick Desaulniers [Fri, 14 Apr 2023 22:43:03 +0000 (15:43 -0700)]
[Demangle] replace use of llvm::StringView w/ std::string_view

This refactoring was waiting on converting LLVM to C++17.

Leave StringView.h and cleanup around for subsequent cleanup.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D148384

18 months ago[libc] Add implementation of getchar
Michael Jones [Fri, 14 Apr 2023 22:36:39 +0000 (15:36 -0700)]
[libc] Add implementation of getchar

added getchar and getchar_unlocked which are just wrappers getc and getc_unlocked respectively.

Reviewed By: sivachandra, lntue, michaelrj

Differential Revision: https://reviews.llvm.org/D147919

18 months ago[StringView] remove consumeFront
Nick Desaulniers [Fri, 14 Apr 2023 22:27:56 +0000 (15:27 -0700)]
[StringView] remove consumeFront

Towards converting our use of llvm::StringView to std::string_view,
remove a method that std::string_view doesn't have.

This could be moved to the nascent llvm/ADT/StringViewExtras.h, but the
use is highly localized to one TU. Move this to be a static function
there.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D148375

18 months agoRevert ""Reland "[hwasan] Provide aliases for c allocation functions for Fuchsia""
Leonard Chan [Fri, 14 Apr 2023 22:31:09 +0000 (22:31 +0000)]
Revert ""Reland "[hwasan] Provide aliases for c allocation functions for Fuchsia""

This reverts commit 39ece7583a784976dea786d59e6564649b13d92d.

Reverting because I suspect this is leading to the failures we see in
fxbug.dev/125426. We're seeing unexpected OOMs and I suspect it's
because this change makes c-style allocation functions use hwasan's
allocator which might be worse than the default one (scudo). Reverting
for now to see if this unblocks the clang roll.

18 months ago[Clang] Fix defaulted equality operator so that it does not attempt to compare unname...
Shafik Yaghmour [Fri, 14 Apr 2023 21:56:36 +0000 (14:56 -0700)]
[Clang] Fix defaulted equality operator so that it does not attempt to compare unnamed bit-fields

If we look at class.bit p2 it tells us that that unnamed bit-fields are not
members and class.compare.default p5 tells us that we should only compare
non-static data members of the class.

This fixes: https://github.com/llvm/llvm-project/issues/61335 and https://github.com/llvm/llvm-project/issues/61417

Differential Revision: https://reviews.llvm.org/D146329

18 months ago[SLP][NFC] Remove Limit from tryToVectorizeSequence() arguments.
Vasileios Porpodas [Fri, 14 Apr 2023 20:18:33 +0000 (13:18 -0700)]
[SLP][NFC] Remove Limit from tryToVectorizeSequence() arguments.

Limit turns out to be implemented in the exact same way for all calls to
tryToVectorizeSequence(). So this patch removes it and implements it internally
as a lambda function.

Differential Revision: https://reviews.llvm.org/D148382

18 months agoValueTracking: Handle freeze in computeKnownFPClass
Matt Arsenault [Thu, 13 Apr 2023 13:35:18 +0000 (09:35 -0400)]
ValueTracking: Handle freeze in computeKnownFPClass

18 months ago[test][sanitizer] Add stress test for pthread_create
Vitaly Buka [Fri, 14 Apr 2023 21:28:31 +0000 (14:28 -0700)]
[test][sanitizer] Add stress test for pthread_create

18 months agoValueTracking: Implement computeKnownFPClass for arithmetic.fence
Matt Arsenault [Sun, 9 Apr 2023 11:10:46 +0000 (07:10 -0400)]
ValueTracking: Implement computeKnownFPClass for arithmetic.fence

18 months agoValueTracking: Add baseline test for arithmetic.fence computeKnownFPClass
Matt Arsenault [Sun, 9 Apr 2023 11:09:59 +0000 (07:09 -0400)]
ValueTracking: Add baseline test for arithmetic.fence computeKnownFPClass

18 months agoValueTracking: Add baseline test for computeKnownFPClass fpext handling
Matt Arsenault [Sun, 9 Apr 2023 11:23:53 +0000 (07:23 -0400)]
ValueTracking: Add baseline test for computeKnownFPClass fpext handling

18 months agoValueTracking: Implement computeKnownFPClass for llvm.trunc
Matt Arsenault [Sun, 9 Apr 2023 02:54:30 +0000 (22:54 -0400)]
ValueTracking: Implement computeKnownFPClass for llvm.trunc

18 months agoValueTracking: Add baseline test for trunc computeKnownFPClass handling
Matt Arsenault [Sun, 9 Apr 2023 10:49:48 +0000 (06:49 -0400)]
ValueTracking: Add baseline test for trunc computeKnownFPClass handling

18 months agoValueTracking: Handle non-splat vectors in computeKnownFPClass
Matt Arsenault [Mon, 10 Apr 2023 19:41:46 +0000 (15:41 -0400)]
ValueTracking: Handle non-splat vectors in computeKnownFPClass

Avoids some regressions when the implementation of isKnownNeverNaN is
replaced with computeKnownFPClass.

18 months ago[github] update action and use major version
Mohammed Keyvanzadeh [Fri, 14 Apr 2023 11:23:30 +0000 (14:53 +0330)]
[github] update action and use major version

- Update the `actions/download-artifact` action to version 3.
- Use the major version of an action instead of specifying the minor or patch versions.

Differential Revision: https://reviews.llvm.org/D148327

18 months ago[libc++] Re-generate the ignore-format file with the CI's clang-format
Louis Dionne [Fri, 14 Apr 2023 21:14:16 +0000 (22:14 +0100)]
[libc++] Re-generate the ignore-format file with the CI's clang-format

99e52b68a4 re-generated that file with a clang-format version that differs
from the CI's clang-format, leading to CI breakage.

18 months ago[ELF] Fix SysV hash function.
Nathan Sidwell [Sun, 9 Apr 2023 17:28:34 +0000 (13:28 -0400)]
[ELF] Fix SysV hash function.

(a) Treat name as unsigned chars.

(b) Refactor for better optimization of main loop.

Differential Revision: https://reviews.llvm.org/D147890

18 months ago[clang-format] Correctly indent comment above finalized PPDirective
Owen Pan [Thu, 13 Apr 2023 07:27:40 +0000 (00:27 -0700)]
[clang-format] Correctly indent comment above finalized PPDirective

Fixes #62107.

Differential Revision: https://reviews.llvm.org/D148200

18 months ago[gn build] Port d6d30dd9590b
LLVM GN Syncbot [Fri, 14 Apr 2023 20:52:23 +0000 (20:52 +0000)]
[gn build] Port d6d30dd9590b

18 months ago[ASan] fix test broken by argument promotion pass
Florian Mayer [Fri, 14 Apr 2023 20:47:26 +0000 (13:47 -0700)]
[ASan] fix test broken by argument promotion pass

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D148376

18 months ago[ADT] add StringViewExtras llvm::starts_with for std::string_view
Nick Desaulniers [Fri, 14 Apr 2023 20:41:52 +0000 (13:41 -0700)]
[ADT] add StringViewExtras llvm::starts_with for std::string_view

std::string_view::starts_with isn't available until C++20. Create
llvm::starts_with for now; we can delete this when LLVM moves to C++20
one day.

To run the newly added unit test:
$ cd llvm/build; ninja ADTTests; cd -
$ ./llvm/build/unittests/ADT/ADTTests --gtest_filter=StringViewExtrasTest.\*

Reviewed By: MaskRay, erichkeane

Differential Revision: https://reviews.llvm.org/D148367

18 months ago[Tests] Added test for D128011
Dávid Bolvanský [Fri, 14 Apr 2023 20:37:55 +0000 (22:37 +0200)]
[Tests] Added test for D128011

18 months agoValueTracking: Implement computeKnownFPClass for canonicalize
Matt Arsenault [Sat, 8 Apr 2023 23:44:44 +0000 (19:44 -0400)]
ValueTracking: Implement computeKnownFPClass for canonicalize

18 months agoValueTracking: Add baseline test for computeKnownFPClass for canonicalize
Matt Arsenault [Sat, 8 Apr 2023 23:44:22 +0000 (19:44 -0400)]
ValueTracking: Add baseline test for computeKnownFPClass for canonicalize

18 months ago[OpenMP] Remove duplicates from the list if using 'auto'
Joseph Huber [Wed, 12 Apr 2023 20:08:59 +0000 (15:08 -0500)]
[OpenMP] Remove duplicates from the list if using 'auto'

Summary:
We can detect the user's GPUs via the `auto` option. But if the user has
multiple GPUs installed or set the list incorrectly, we need to remove
the duplicates.

18 months ago[libc] Remove duplicate architecture from the detected list
Joseph Huber [Fri, 14 Apr 2023 20:05:40 +0000 (15:05 -0500)]
[libc] Remove duplicate architecture from the detected list

Summary:
When we detect the architectures via `native` we can have systems with
multiple of the same GPU. We need to remove duplicates or else we will
try to build the same target multiple times.

18 months ago[StringView] remove popFront
Nick Desaulniers [Fri, 14 Apr 2023 20:09:01 +0000 (13:09 -0700)]
[StringView] remove popFront

Towards converting our use of llvm::StringView to std::string_view,
remove a method that std::string_view doesn't have.

llvm::StringView::popFront is similar to std::string_view::remove_prefix
but with a reference to std::string_view::front taken first.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D148363

18 months ago[AArch64] Precommit a test
Jingu Kang [Fri, 14 Apr 2023 19:42:53 +0000 (20:42 +0100)]
[AArch64] Precommit a test

This patch precommits a test for:

https://reviews.llvm.org/D148347

18 months ago[MLIR][python bindings] implement `PyValue` subclassing to enable operator overloading
max [Fri, 14 Apr 2023 19:20:33 +0000 (14:20 -0500)]
[MLIR][python bindings] implement `PyValue` subclassing to enable operator overloading

Differential Revision: https://reviews.llvm.org/D147758

18 months ago[scudo] The BaseAddr should be MappedBase in releasePagesToOS()
Chia-hung Duan [Fri, 14 Apr 2023 19:12:48 +0000 (19:12 +0000)]
[scudo] The BaseAddr should be MappedBase in releasePagesToOS()

This is used to make MemMapDefault be compliant with legacy APIs.

Reviewed By: fabio-d

Differential Revision: https://reviews.llvm.org/D148141

18 months agoReland "[clang-scan-deps] Migrate to OptTable"
Alex Brachet [Fri, 14 Apr 2023 19:15:02 +0000 (19:15 +0000)]
Reland "[clang-scan-deps] Migrate to OptTable"

Differential Revision: https://reviews.llvm.org/D139949

18 months agotest-release.sh: build projects and runtimes lists with semicolons
Dimitry Andric [Sun, 12 Mar 2023 18:53:12 +0000 (19:53 +0100)]
test-release.sh: build projects and runtimes lists with semicolons

While doing a test-release.sh run on FreeBSD, I ran into a sed error due
to the introduction of the GNU extension '\s' in commit 500587e23dfd.

Scanning for blanks (spaces and tabs) could be done in a more portable
fashion using the [[:blank:]] character class. But it is easier to avoid
the original problem, which is that the projects and runtime lists have
to be separated by semicolons, and cannot start with a semicolon.

Instead, use the shell's alternate value parameter expansion mechanism,
which makes it easy to append items to lists with separators in between,
and without any leading separator. This also avoids having to run sed on
the end result.

In addition, build any selected runtimes in the second phase, otherwise
the third phase can fail to find several symbols in compiler-rt, if that
has been built. This is because the host's compiler-rt is not guaranteed
to have those symbols.

Reviewed By: tstellar

Differential Revision: https://reviews.llvm.org/D145884

18 months agoFix tls_get_addr handling for glibc >=2.25
Thurston Dang [Wed, 12 Apr 2023 20:53:49 +0000 (20:53 +0000)]
Fix tls_get_addr handling for glibc >=2.25

This changes the sanitizers' tls_get_addr handling from
a heuristic check of __signal_safe_memalign allocations
(which has only been used in a since deprecated version
of Google's runtime), to using the sanitizers' interface
function to check if it is a malloc allocation (used
since glibc >= 2.25).

This is one of the approaches proposed by Keno in
https://github.com/google/sanitizers/issues/1409#issuecomment-1214244142

This moves the weak annotation of __sanitizer_get_allocated_size/begin from the header to sanitizer_tls_get_addr.cpp, as suggested by Vitaly in D148060.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D147459

18 months ago[bazel] Fix build after 33468a5
Christian Sigg [Fri, 14 Apr 2023 18:44:19 +0000 (20:44 +0200)]
[bazel] Fix build after 33468a5

Add missing dependency.

18 months agoValueTracking: Handle fptrunc in computeKnownFPClass
Matt Arsenault [Sun, 9 Apr 2023 11:18:07 +0000 (07:18 -0400)]
ValueTracking: Handle fptrunc in computeKnownFPClass

Handle nan.

18 months agoValueTracking: Add computeKnownFPClass baseline test for fptrunc
Matt Arsenault [Mon, 10 Apr 2023 13:49:06 +0000 (09:49 -0400)]
ValueTracking: Add computeKnownFPClass baseline test for fptrunc

18 months agoInstSimplify: Perform cheaper check first
Matt Arsenault [Tue, 11 Apr 2023 20:39:39 +0000 (16:39 -0400)]
InstSimplify: Perform cheaper check first

18 months agoValueTracking: Handle extractelement and extractvalue in computeKnownFPClass
Matt Arsenault [Wed, 12 Apr 2023 23:09:17 +0000 (19:09 -0400)]
ValueTracking: Handle extractelement and extractvalue in computeKnownFPClass

18 months agoValueTracking: Implement computeKnownFPClass for sin/cos
Matt Arsenault [Sat, 8 Apr 2023 23:15:26 +0000 (19:15 -0400)]
ValueTracking: Implement computeKnownFPClass for sin/cos

18 months ago[Docs] Update ClangFormatStyleOptions.rst's versionbadge's to have min-width
Shivam Gupta [Fri, 14 Apr 2023 18:14:39 +0000 (23:44 +0530)]
[Docs] Update ClangFormatStyleOptions.rst's versionbadge's to have min-width

This fix https://github.com/llvm/llvm-project/issues/61934

By default, the width property is used to set the width of a table column.
However, if the content of a cell in that column is wider than the width
specified by the width property, the cell's content will overflow the
column and the table will become wider than the specified width.
This causes the version numbers to be displayed outside of their table cells.

Using the min-width property instead of width ensures that the column is
wide enough to accommodate the content of its cells. If a cell's content is
wider than the specified min-width, the column will expand to fit the content.

18 months ago[mlir][linalg] Fix a bug in lower_pack when there are no padding values.
Hanhan Wang [Fri, 14 Apr 2023 18:23:16 +0000 (11:23 -0700)]
[mlir][linalg] Fix a bug in lower_pack when there are no padding values.

Reviewed By: chelini

Differential Revision: https://reviews.llvm.org/D148061

18 months ago[StringView] remove ctor incompatible with std::string_view
Nick Desaulniers [Fri, 14 Apr 2023 18:11:25 +0000 (11:11 -0700)]
[StringView] remove ctor incompatible with std::string_view

Towards replacing llvm::StringView with std::string_view, remove ctor
that std::string_view doesn't have an analog for.

Reviewed By: erichkeane, MaskRay

Differential Revision: https://reviews.llvm.org/D148353

18 months ago[InstCombine] Make `FoldOpIntoSelect` handle non-constants and use condition to deduc...
Noah Goldstein [Fri, 14 Apr 2023 17:35:14 +0000 (12:35 -0500)]
[InstCombine] Make `FoldOpIntoSelect` handle non-constants and use condition to deduce constants.

Make the fold use the information present in the condition for deducing constants i.e:
```
%c = icmp eq i8 %x, 10
%s = select i1 %c, i8 3, i8 2
%r = mul i8 %x, %s
```

If we fold the `mul` into the select, on the true side we insert `10` for `%x` in the `mul`.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D146349

18 months ago[InstCombine] Add tests for deducing constants based on condition in select; NFC
Noah Goldstein [Fri, 14 Apr 2023 17:34:53 +0000 (12:34 -0500)]
[InstCombine] Add tests for deducing constants based on condition in select; NFC

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D148180

18 months ago[LIBC] Actually assert no errors in `pthread_call_once` in its test; NFC
Noah Goldstein [Fri, 14 Apr 2023 17:34:27 +0000 (12:34 -0500)]
[LIBC] Actually assert no errors in `pthread_call_once` in its test; NFC

Just seemed to be missing an assertion.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D148289

18 months ago[LIBC] Clarify namespace of `thread_exit` in `pthread_exit`
Noah Goldstein [Fri, 14 Apr 2023 17:33:59 +0000 (12:33 -0500)]
[LIBC] Clarify namespace of `thread_exit` in `pthread_exit`

Just add `__llvm_libc::` to makes things clearer.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D148292

18 months ago[TableGen] Replace std::shared_ptr with InstrusiveRefCntPtr for TreePatternNode. NFC
Craig Topper [Fri, 14 Apr 2023 17:37:14 +0000 (10:37 -0700)]
[TableGen] Replace std::shared_ptr with InstrusiveRefCntPtr for TreePatternNode. NFC

An intrusive reference counter uses less memory than the control
block of std::shared_ptr.

This should allow some additional code simplifications if we
don't need to pass around shared_ptr in order to create new
shared_ptrs.

18 months ago[gn build] Port 5abe338f2a7f
LLVM GN Syncbot [Fri, 14 Apr 2023 17:45:35 +0000 (17:45 +0000)]
[gn build] Port 5abe338f2a7f

18 months ago[clang-tidy][NFC] Remove reference to Visual studio native plugin
Jorge Pinto Sousa [Fri, 14 Apr 2023 17:22:47 +0000 (17:22 +0000)]
[clang-tidy][NFC] Remove reference to Visual studio native plugin

The clang-tidy documentation contained:

> MS Visual Studio has a native clang-tidy-vs plugin

This plugin was removed via 559ae14.

Fixes: https://github.com/llvm/llvm-project/issues/62142

Reviewed By: PiotrZSL

Differential Revision: https://reviews.llvm.org/D148354

18 months ago[clang-tidy][NFC] Improved hungarian notation regression test at post-commit review
Douglas Chen [Fri, 14 Apr 2023 17:22:36 +0000 (17:22 +0000)]
[clang-tidy][NFC] Improved hungarian notation regression test at post-commit review

Improve the (`D144510`)[https://reviews.llvm.org/D144510] patch with prefix string. Using "my" instead of "cust" would increase
readability.

Take some examples:
- const char* `custszNamePtr` = "Name"; --> `myszNamePtr`
- uint8_t `custu8ValueU8` = 0; --> `myu8ValueU8`
- DWORD `custdwMsDword` = 0; --> `mydwMsDword`

Reviewed By: PiotrZSL

Differential Revision: https://reviews.llvm.org/D148314

18 months ago[clang-tidy] Fix false positve for defaulted move constructor in performance-noexcept...
AMS21 [Fri, 14 Apr 2023 17:06:30 +0000 (17:06 +0000)]
[clang-tidy] Fix false positve for defaulted move constructor in performance-noexcept-move-constructor

Previously a struct like this:

template <typename>
struct A { A(A&&) = default; };

Would trigger a false positive, since even though it is not marked as
noexcept it still is due to the `= default`.
Now we only give a warning if the defaulted move constructor is
actually declared as throwing and correctly resolve it if they are
defaulted.

This fixes llvm#56026, llvm#41414, llvm#38081

Reviewed By: PiotrZSL

Differential Revision: https://reviews.llvm.org/D146922

18 months ago[StringView] remove dropFront
Nick Desaulniers [Fri, 14 Apr 2023 17:24:07 +0000 (10:24 -0700)]
[StringView] remove dropFront

Towards converting our use of llvm::StringView to std::string_view,
remove a method that std::string_view doesn't have.
llvm::StringView::dropFront is semantically similar to
std::string_view::substr but with the input clamped to the size. No code
was relying on clamping other than the rust demangler, which I fixed in
https://reviews.llvm.org/D148272.  Removing this method makes it easier
to switch over code later.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D148348

18 months ago[lsan] Move allocator base to avoid conflict with high-entropy ASLR for x86-64 Linux
Fangrui Song [Fri, 14 Apr 2023 17:18:54 +0000 (10:18 -0700)]
[lsan] Move allocator base to avoid conflict with high-entropy ASLR for x86-64 Linux

This ports D148280 for ASan.

On x86-64 Linux, when mmap_rnd_bits is set to 32 (the maximum `ARCH_MMAP_RND_BITS_MAX`),
the allocator space `[kAllocatorSpace,kAllocatorSpace+kAllocatorSize)`
collides with the PIE load base range (0x555555554000 upto `2**mmap_rnd_bits * pagesize` away),
which can cause the allocation to fail.
Using 0x500000000000ULL as the base address avoids this problem and works with
AArch64 Linux and FreeBSD as well.

While here, change s390x to use 0x500000000000ULL as well. See D78644
discussions that the address works.

Reviewed By: thurston, vitalybuka

Differential Revision: https://reviews.llvm.org/D148193

18 months ago[Pipeline] Don't limit ArgumentPromotion to -O3
Arthur Eubanks [Thu, 13 Apr 2023 20:25:08 +0000 (13:25 -0700)]
[Pipeline] Don't limit ArgumentPromotion to -O3

This is a cheap pass so there's no need to limit to -O3.
This removes some differences between various pipelines.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D148269

18 months ago[passes] Remove the legacy PM version of IRCE
Bjorn Pettersson [Fri, 14 Apr 2023 13:04:10 +0000 (15:04 +0200)]
[passes] Remove the legacy PM version of IRCE

Differential Revision: https://reviews.llvm.org/D148338

18 months ago[passes] Remove the legacy PM version of AlignmentFromAssumptions
Bjorn Pettersson [Fri, 14 Apr 2023 13:00:36 +0000 (15:00 +0200)]
[passes] Remove the legacy PM version of AlignmentFromAssumptions

Differential Revision: https://reviews.llvm.org/D148337

18 months ago[Passes] Remove the legacy DemandedBitsWrapperPass
Bjorn Pettersson [Thu, 13 Apr 2023 11:25:43 +0000 (13:25 +0200)]
[Passes] Remove the legacy DemandedBitsWrapperPass

Last user of DemandedBitsWrapperPass was the BDCE pass. Since
the legacy PM version of BDCE was removed in an earlier commit, this
patch removes the now unused DemandedBitsWrapperPass.

Differential Revision: https://reviews.llvm.org/D148336

18 months ago[Passes] Remove legacy PM version of BDCE (aka BitTrackingDCEPass)
Bjorn Pettersson [Thu, 13 Apr 2023 08:42:16 +0000 (10:42 +0200)]
[Passes] Remove legacy PM version of BDCE (aka BitTrackingDCEPass)

BDCE is not used by the codegen pipeline so we should not need the
legacy PM version of the pass any longer.

Differential Revision: https://reviews.llvm.org/D148335