platform/upstream/llvm.git
20 months ago[Codeview] Fix incorrect size determination for complex types.
Steve Merritt [Fri, 10 Feb 2023 13:49:49 +0000 (08:49 -0500)]
[Codeview] Fix incorrect size determination for complex types.

In Codeview, the basic type of a complex represents the size
of an individual component rather than the sum of the real
and imaginary components.

Differential Revision: https://reviews.llvm.org/D143760

20 months ago[PDB] Error on too large stream directories
Hans Wennborg [Fri, 27 Jan 2023 17:33:02 +0000 (18:33 +0100)]
[PDB] Error on too large stream directories

We hit this in Chromium builds where the PDB file was just under 4GB,
but the stream directory was actually too large to be correctly
represented.

llvm-pdbutil would error about this in llvm::msf::validateSuperBlock,
but lld should not write such PDB files in the first place.

Differential revision: https://reviews.llvm.org/D144385

20 months agoVerifier: Don't rely on bitmask enum when checking nofpclass value
Matt Arsenault [Fri, 24 Feb 2023 13:38:10 +0000 (09:38 -0400)]
Verifier: Don't rely on bitmask enum when checking nofpclass value

20 months ago[mlir][Vector][Trivial] Move a conversion to LLVM test to the conversion passes test...
Markus Böck [Fri, 24 Feb 2023 13:33:19 +0000 (14:33 +0100)]
[mlir][Vector][Trivial] Move a conversion to LLVM test to the conversion passes test directory and port it to opaque pointers

20 months ago[mlir][LLVM] Enable opaque-pointers in e2e lowering test pass
Markus Böck [Fri, 24 Feb 2023 13:26:02 +0000 (14:26 +0100)]
[mlir][LLVM] Enable opaque-pointers in e2e lowering test pass

Part of https://discourse.llvm.org/t/rfc-switching-the-llvm-dialect-and-dialect-lowerings-to-opaque-pointers/68179

Given this is only a test pass I believe it should be fine to switch it to opaque-pointers entirely while migrating.

Differential Revision: https://reviews.llvm.org/D144726

20 months ago[mlir][LinalgToLLVM] Add pass option for emitting opaque-pointers
Markus Böck [Fri, 24 Feb 2023 13:10:26 +0000 (14:10 +0100)]
[mlir][LinalgToLLVM] Add pass option for emitting opaque-pointers

While the pass itself doesn't directly require any changes to be compatible with opaque-pointers, it does import patterns for lowering MemRefs to LLVM.
Adding this pass option allows any users of the pass to switch to emitting opaque-pointers via the pass option

Differential Revision: https://reviews.llvm.org/D144724

20 months ago[Libomptarget] Remove unused image argument from global handler function
Joseph Huber [Fri, 24 Feb 2023 13:23:34 +0000 (07:23 -0600)]
[Libomptarget] Remove unused image argument from global handler function

Summary:
A previous patch got rid of the use of this image but forgot to remove
it from this function. Simply remove it as it is unused now.

20 months ago[libc++] Remove <experimental/{algorithm,functional}>
Nikolas Klauser [Tue, 21 Feb 2023 13:16:41 +0000 (14:16 +0100)]
[libc++] Remove <experimental/{algorithm,functional}>

The contents of these files have been implemented for at least two releases, so let's remove them according to our policy (https://libcxx.llvm.org/DesignDocs/ExperimentalFeatures.html#id4).

Reviewed By: Mordante, #libc

Spies: arichardson, libcxx-commits

Differential Revision: https://reviews.llvm.org/D144475

20 months ago[sanitizer] Support v2 and v3 capabilities
Ilya Leoshkevich [Fri, 24 Feb 2023 12:10:15 +0000 (13:10 +0100)]
[sanitizer] Support v2 and v3 capabilities

capget() and capset() may read or write more than one cap_user_data_t,
depending on the version field of cap_user_header_t. Currently the
code assumes it's just one, so MSan complains if an application uses
version 2 or 3, where two cap_user_data_ts are used.

Parse the header in order to determine the number of cap_user_data_ts.
Also add a test.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D143660

20 months agoFix the LLVM Sphinx build
Aaron Ballman [Fri, 24 Feb 2023 12:56:47 +0000 (07:56 -0500)]
Fix the LLVM Sphinx build

This addresses the issue found by:
https://lab.llvm.org/buildbot/#/builders/30/builds/32299

20 months ago[Tooling/Inclusion] Add the generic abs symbol to the table.
Haojian Wu [Fri, 24 Feb 2023 11:49:06 +0000 (12:49 +0100)]
[Tooling/Inclusion] Add the generic abs symbol to the table.

Fixes https://github.com/llvm/llvm-project/issues/60964

Differential Revision: https://reviews.llvm.org/D144721

20 months agoRecommit "[SCCP] Remove legacy SCCP pass."
Florian Hahn [Fri, 24 Feb 2023 12:47:30 +0000 (13:47 +0100)]
Recommit "[SCCP] Remove legacy SCCP pass."

This reverts commit a9a1950115d7db95c7439128b14af2cefe8f796d.

The legacy PM uses in Polly have been removed, so recommit the patch.

Original message:
    This is part of the optimization pipeline, of which the legacy pass manager version is deprecated.

    Reviewed By: aeubanks

    Differential Revision: https://reviews.llvm.org/D144201

20 months ago[clang-tidy] handle exceptions properly in `ExceptionAnalyzer`
isuckatcs [Fri, 7 Oct 2022 22:23:33 +0000 (00:23 +0200)]
[clang-tidy] handle exceptions properly in `ExceptionAnalyzer`

This patch implements the exception handling rules found in
N4849 14.4 and as a result fixes many false positives in
the bugprone-exception-escape checker.

Differential Revision: https://reviews.llvm.org/D135495

20 months agoLLParser: Fix failing nofpclass test
Matt Arsenault [Fri, 24 Feb 2023 12:40:41 +0000 (08:40 -0400)]
LLParser: Fix failing nofpclass test

20 months ago[Polly] Remove CodegenCleanupPass.
Florian Hahn [Fri, 24 Feb 2023 12:39:32 +0000 (13:39 +0100)]
[Polly] Remove CodegenCleanupPass.

The pass uses a bunch of deprecated legacy passes and appears unused.
Remove it to unblock removing legacy passes.

Fixes https://github.com/llvm/llvm-project/issues/60852

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D144332

20 months agoRevert "Add tests to reproduce pointer/index width confusion crashes"
Dmitri Gribenko [Fri, 24 Feb 2023 12:24:51 +0000 (13:24 +0100)]
Revert "Add tests to reproduce pointer/index width confusion crashes"

This reverts commit 5a4f193afa0d73f7ec459648d8f02535577dd604.

See https://reviews.llvm.org/D144673, this change broke multiple
buildbots.

20 months ago[Tooling/Inclusion] Add the missing NULL symbol to the table.
Haojian Wu [Fri, 24 Feb 2023 10:45:29 +0000 (11:45 +0100)]
[Tooling/Inclusion] Add the missing NULL symbol to the table.

Differential Revision: https://reviews.llvm.org/D144713

20 months agoAMDGPU: Document denormal behavior
Matt Arsenault [Tue, 6 Dec 2022 18:50:35 +0000 (13:50 -0500)]
AMDGPU: Document denormal behavior

Not sure this is the right place for it next to the table.

20 months agoIR: Add nofpclass parameter attribute
Matt Arsenault [Tue, 6 Dec 2022 18:04:15 +0000 (13:04 -0500)]
IR: Add nofpclass parameter attribute

This carries a bitmask indicating forbidden floating-point value kinds
in the argument or return value. This will enable interprocedural
-ffinite-math-only optimizations. This is primarily to cover the
no-nans and no-infinities cases, but also covers the other floating
point classes for free. Textually, this provides a number of names
corresponding to bits in FPClassTest, e.g.

  call nofpclass(nan inf) @must_be_finite()
  call nofpclass(snan) @cannot_be_snan()

This is more expressive than the existing nnan and ninf fast math
flags. As an added bonus, you can represent fun things like nanf:

  declare nofpclass(inf zero sub norm) float @only_nans()

Compared to nnan/ninf:
  - Can be applied to individual call operands as well as the return value
  - Can distinguish signaling and quiet nans
  - Distinguishes the sign of infinities
  - Can be safely propagated since it doesn't imply anything about
    other operands.
  - Does not apply to FP instructions; it's not a flag

This is one step closer to being able to retire "no-nans-fp-math" and
"no-infs-fp-math". The one remaining situation where we have no way to
represent no-nans/infs is for loads (if we wanted to solve this we
could introduce !nofpclass metadata, following along with
noundef/!noundef).

This is to help simplify the GPU builtin math library
distribution. Currently the library code has explicit finite math only
checks, read from global constants the compiler driver needs to set
based on the compiler flags during linking. We end up having to
internalize the library into each translation unit in case different
linked modules have different math flags. By propagating known-not-nan
and known-not-infinity information, we can automatically prune the
edge case handling in most functions if the function is only reached
from fast math uses.

20 months ago[ARM] Remove redundant BTI instructions for table jumps
Jirui Wu [Thu, 16 Feb 2023 16:28:09 +0000 (16:28 +0000)]
[ARM] Remove redundant BTI instructions for table jumps

A BTI instruction was previously inserted at the beginning of each block
that has its address stored in a jump table. Jump tables only emit
indirect jumps in ARM or Thumb1 modes. However, PACBTI is not supported
in these modes. As a result, BTI instructions emitted by jump tables are
redundant. Removing redundant BTI instructions improves the code size
and prevents potential gadgets.

Differential Revision: https://reviews.llvm.org/D144470

20 months ago[ARM] Accept .w suffixes for some memory instructions
Jirui Wu [Tue, 31 Jan 2023 10:11:24 +0000 (10:11 +0000)]
[ARM] Accept .w suffixes for some memory instructions

Some memory instructions in the following sections of Armv7-M ARM allow
the .w mnemonic suffix, even though the preferred disassembly is without
the suffix.

A7.7.46 LDRB (immediate) T3
A7.7.55 LDRH (immediate) T3
A7.7.59 LDRSB (immediate) T2
A7.7.63 LDRSH (immediate) T2
A7.7.163 STRB (immediate) T3
A7.7.170 STRH (immediate) T3

This patch accepts the .w suffixes for theses instructions.
Pseudo-instructions and custom parsing logic are used instead of simple
aliases. More discussions are in these relevant patches:
https://reviews.llvm.org/D68916
https://reviews.llvm.org/D96632

Differential Revision: https://reviews.llvm.org/D142980

20 months ago[clang][dataflow] Fix wrong assert for CXXConstructExpr
Paul Semel [Wed, 22 Feb 2023 10:36:39 +0000 (10:36 +0000)]
[clang][dataflow] Fix wrong assert for CXXConstructExpr

Differential Revision: https://reviews.llvm.org/D144546

20 months ago[Tooling][Inclusions] Add c-header and global namespace alternatives for size_t
Kadir Cetinkaya [Thu, 23 Feb 2023 15:33:03 +0000 (16:33 +0100)]
[Tooling][Inclusions] Add c-header and global namespace alternatives for size_t

Differential Revision: https://reviews.llvm.org/D144646

20 months ago[clangd] Fix UB in scanPreamble
Kadir Cetinkaya [Fri, 24 Feb 2023 08:52:40 +0000 (09:52 +0100)]
[clangd] Fix UB in scanPreamble

getMemBufferCopy triggers an UB when it receives a default constructed
StringRef. Make sure that we're always passing the null-terminated string
created in ParseInputs throughout the scanPreamble.

Differential Revision: https://reviews.llvm.org/D144708

20 months ago[clangd] Avoid using CompletionItemKind.Text for macro completions
Nathan Ridge [Fri, 24 Feb 2023 06:17:44 +0000 (01:17 -0500)]
[clangd] Avoid using CompletionItemKind.Text for macro completions

Fixes https://github.com/clangd/clangd/issues/1484

Differential Revision: https://reviews.llvm.org/D144703

20 months ago[mlir][IR] Add Iterator template option to IR walkers
Matthias Springer [Fri, 24 Feb 2023 09:13:36 +0000 (10:13 +0100)]
[mlir][IR] Add Iterator template option to IR walkers

This allows users to specify a  top-down or bottom-up traversal of the IR, in addition to the already existing WalkOrder.

Certain transformations work better with a forward traversal. E.g., when cloning a piece of IR, operations should be cloned top-down so that all uses are defined when creating an op.

Certain transformations work better with a reverse traversal. E.g., when erasing a piece of IR, operations should be erased bottom-up to avoid erasing operations that still have users.

Differential Revision: https://reviews.llvm.org/D144257

20 months ago[SCEV] Increase FoldID bits size cover common cases.
Florian Hahn [Fri, 24 Feb 2023 08:41:52 +0000 (09:41 +0100)]
[SCEV] Increase FoldID bits size cover common cases.

This should fix the regressions introduced by a53d940cee6f by making
sure no dynamic allocations are needed in the common case, while
retaining support for arbitrary SCEV expressions.

Alternative to D144335.

Compile-time impact:
* NewPM-O3: -0.11%
* NewPM-ReleaseThinLTO: -0.10%
*NewPM-ReleaseLTO-g: -0.08%

https://llvm-compile-time-tracker.com/compare.php?from=df016a9525e5722dfd1e1e1632cec3ed7b33bc8a&to=c1c64de4a973bcecaddbc4038a539234eb39413b&stat=instructions:u

Reviewed By: vitalybuka, nikic

Differential Revision: https://reviews.llvm.org/D144382

20 months ago[flang] Perform default value initialization on abstract type if needed
Valentin Clement [Fri, 24 Feb 2023 08:21:45 +0000 (09:21 +0100)]
[flang] Perform default value initialization on abstract type if needed

Abstract derived-type components can have default value so perform
the default value initialization if necessary.

```
type, abstract :: a
  integer :: b = 10
end type

type, extends(a) :: b
  integer :: d
end type
```

Reviewed By: klausler

Differential Revision: https://reviews.llvm.org/D144668

20 months ago[flang][hlfir] Array constructor lowering [part 4/4]
Jean Perier [Fri, 24 Feb 2023 08:18:15 +0000 (09:18 +0100)]
[flang][hlfir] Array constructor lowering [part 4/4]

Enable character and derived type array constructor lowering.
Nothing special needs to be done other than lowering the types
before the array constructor lowering.
Derived type are forced to use the runtime for now to avoid
undesired usage of user defined assignment that hlfir.assign
may trigger when using the runtime.

Differential Revision: https://reviews.llvm.org/D144548

20 months ago[NFC] Make FPClassTest a bitmask enumeration
Serge Pavlov [Fri, 24 Feb 2023 08:11:16 +0000 (15:11 +0700)]
[NFC] Make FPClassTest a bitmask enumeration

This is recommit of 2e416cdd52, fixed to be accepatble by GCC.
The original commit message is below.

With this change bitwise operations are allowed for FPClassTest
enumeration, it must simplify using this type. Also some functions
changed to get argument of type FPClassTest instead of unsigned.

Differential Revision: https://reviews.llvm.org/D144241

20 months ago[flang][hlfir] Array constructor lowering [part 3/4]
Jean Perier [Fri, 24 Feb 2023 08:09:52 +0000 (09:09 +0100)]
[flang][hlfir] Array constructor lowering [part 3/4]

Lower the cases that require runtime support to deal
with the allocation, reallocation, or copy of ac-values to
the array constructor storage.

Differential Revision: https://reviews.llvm.org/D144513

20 months agoASAN: keep support for Global::location
Martin Liska [Mon, 20 Feb 2023 20:06:08 +0000 (21:06 +0100)]
ASAN: keep support for Global::location

We as GCC still emit __asan_global_source_location for global variables
and we would like to use it in the future. On other hand, we don't
support llvm-symbolizer and the default libbacktraace symbolizer
does not support location info.

Differential Revision: https://reviews.llvm.org/D144424

20 months ago[flang] Do not include dangling ac-implied-do-index in folded shape inquiry
Jean Perier [Fri, 24 Feb 2023 08:07:25 +0000 (09:07 +0100)]
[flang] Do not include dangling ac-implied-do-index in folded shape inquiry

The current code was replacing inquiry to array constructor whose
ac-value shape depends on ac-implied-do-index with an expression
using the ac-implied-do-index without the implied-do (folding the
first case added in the test as in the second case with a regular
symbol).

Differential Revision: https://reviews.llvm.org/D144655

20 months ago[flang] Preserve useResultSymbolShape_ option when folding array constructor shape
Jean Perier [Fri, 24 Feb 2023 08:06:14 +0000 (09:06 +0100)]
[flang] Preserve useResultSymbolShape_ option when folding array constructor shape

By default evaluate::GetShape(expr) may return a compiler generated expression
using symbols that are part of function interfaces if there are function
references in "expr".
It is not right to replace an inquiry of "expr" with such compiler
generated expression since the call context would be lost, along with
the meaning of the inquiry expression.
Inquiry folding uses GetContextFreeShape(expr) that sets-up
useResultSymbolShape_ in GetShapeHelper to prevent such bad rewrites. But this did not
work properly with array constructor: GetShapeHelper made a call to
GetShape, ignoring and losing the "useResultSymbolShape_" instruction.

Differential Revision: https://reviews.llvm.org/D144512

20 months ago[gn build] Port fffbfe7c0ca8
LLVM GN Syncbot [Fri, 24 Feb 2023 07:34:42 +0000 (07:34 +0000)]
[gn build] Port fffbfe7c0ca8

20 months agoRestore "[Darwin] Apply workaround to make symbolication in iOS simulators work"
Julian Lettner [Fri, 24 Feb 2023 07:28:59 +0000 (23:28 -0800)]
Restore "[Darwin] Apply workaround to make symbolication in iOS simulators work"

This reverts commit d8b8911d58dba73fd7a28210d8d3e780ae881179.

20 months ago[WebAssembly] Split WebAssemblyUtils to fix library layering for MC tools.
Craig Topper [Fri, 24 Feb 2023 07:23:40 +0000 (23:23 -0800)]
[WebAssembly] Split WebAssemblyUtils to fix library layering for MC tools.

WebAssemblyUtils depends on CodeGen which depends on all middle end
optimization libraries.

This component is used by WebAssembly's AsmParser, Disassembler, and
MCTargetDesc libraries. Because of this, any MC layer tool built with
WebAssembly support includes a larger portion of LLVM than it should.

To fix this I've created an MC only version of WebAssemblyTypeUtilities.cpp
in MCTargetDesc to be used by the MC components.

This shrinks llvm-objdump and llvm-mc on my local release+asserts
build by 5-6 MB.

Reviewed By: MaskRay, aheejin

Differential Revision: https://reviews.llvm.org/D144354

20 months ago[clang-tidy] Fix readability-identifer-naming Hungarian CString options
Alexis Murzeau [Fri, 24 Feb 2023 06:53:00 +0000 (06:53 +0000)]
[clang-tidy] Fix readability-identifer-naming Hungarian CString options

When reading readability-identifier-naming.HungarianNotation.CString
options, correctly use the type string stored in CStr.second instead of
the option name (CStr.first) as the HNOption.CString map key.

This will make CString options really working and properly parsed by the
checker.

Reviewed By: carlosgalvezp

Differential Revision: https://reviews.llvm.org/D144431

20 months ago[AMDGPU] Autogenerate carryout-selection.ll, uaddo.ll, usubo.ll (NFC)
Vikram [Wed, 15 Feb 2023 11:05:31 +0000 (11:05 +0000)]
[AMDGPU] Autogenerate carryout-selection.ll, uaddo.ll, usubo.ll (NFC)

Differential Revision: https://reviews.llvm.org/D143987

20 months agoAdd test for issue 60486
Chuanqi Xu [Fri, 24 Feb 2023 06:27:51 +0000 (14:27 +0800)]
Add test for issue 60486

Close https://github.com/llvm/llvm-project/issues/60486.

When I look back at this problem again, it only appears if we specify it
with `-fmodule-file=<BMI-path>`. And it disappears after we specify it
as `-fmodule-file=<module-name>=<BMI-path>`. Since we want to depreacate
the form `-fmodule-file=<BMI-path>`, we can think the problem goes
away.

20 months agoFix internal link in the MLIR doc
Mehdi Amini [Fri, 24 Feb 2023 06:28:34 +0000 (23:28 -0700)]
Fix internal link in the MLIR doc

20 months ago[FunctionImport] Change IRMover report_fatal_error to a proper error
Fangrui Song [Fri, 24 Feb 2023 05:45:14 +0000 (21:45 -0800)]
[FunctionImport] Change IRMover report_fatal_error to a proper error

Conflicting module flags leads to a proper error for regular LTO but a crash
(report_fatal_error) for ThinLTO. Switch to createStringError to fix the crash
and match regular LTO.

20 months ago[scudo] Accessing PossibleRegions requires lock
Chia-hung Duan [Fri, 24 Feb 2023 01:59:01 +0000 (01:59 +0000)]
[scudo] Accessing PossibleRegions requires lock

It is preferable to use `std::shared_mutex` style mutex. Will switch to
using it when it's available.

Differential Revision: https://reviews.llvm.org/D144691

20 months ago[AVR][MC] Add ELF flag 'EF_AVR_LINKRELAX_PREPARED' to OBJ files
Ben Shi [Thu, 23 Feb 2023 07:06:38 +0000 (15:06 +0800)]
[AVR][MC] Add ELF flag 'EF_AVR_LINKRELAX_PREPARED' to OBJ files

This is in accordance with avr-gcc, even '-mno-relax' is specified
to avr-gcc, this flag will also be added to the output relocatables.

With this flag set, the GNU ld will perform long call -> short call
optimization for AVR, otherwise not.

Fixes https://github.com/llvm/llvm-project/issues/54508

Reviewed By: MaskRay, jacquesguan, aykevl

Differential Revision: https://reviews.llvm.org/D144617

20 months ago[libc] Remove a now uneccesary CMake policy.
Siva Chandra Reddy [Thu, 2 Feb 2023 07:23:52 +0000 (07:23 +0000)]
[libc] Remove a now uneccesary CMake policy.

Reviewed By: jhuber6

Differential Revision: https://reviews.llvm.org/D143139

20 months ago[LangRef] Correct value ranges for address space, vector, and float bit sizes.
Michael Liao [Fri, 17 Feb 2023 20:58:23 +0000 (15:58 -0500)]
[LangRef] Correct value ranges for address space, vector, and float bit sizes.

- The current implementation checks them for 24-bit inegers but the
  document says 23-bit one effectively by listing the range as [1,2^23).
- Minor error message correction.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D144685

20 months ago[libc] Introduce a target named libc-unit-tests to run just the unit tests.
Siva Chandra Reddy [Thu, 23 Feb 2023 19:28:22 +0000 (19:28 +0000)]
[libc] Introduce a target named libc-unit-tests to run just the unit tests.

The target "check-libc" now runs all enabled tests which, depending on
the build mode, includes the unit tests, the integration tests and the api
test.

Reviewed By: jhuber6

Differential Revision: https://reviews.llvm.org/D144663

20 months agoRevert "[Darwin] Apply workaround to make symbolication in iOS simulators work"
Julian Lettner [Fri, 24 Feb 2023 02:12:52 +0000 (18:12 -0800)]
Revert "[Darwin] Apply workaround to make symbolication in iOS simulators work"

This reverts commit ebd8eee62a431a6744c3f187fcda58e5dea08499.

20 months agoUse `analyzeKnownBitsFromAndXorOr` in `SimplifyDemandedUseBits` for and/xor/or
Noah Goldstein [Thu, 23 Feb 2023 19:50:02 +0000 (13:50 -0600)]
Use `analyzeKnownBitsFromAndXorOr` in `SimplifyDemandedUseBits` for and/xor/or

There are extra patterns that have for these three logic operations
that aren't covered in `SimplifyDemandedUseBits`. To avoid duplicating
the code, just use `analyzeKnownBitsFromAndXorOr` in
`SimplifyDemandedUseBits` to get full coverage.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D142429

20 months agoAdd logic for tracking lowbit of (and/xor/or X, (add/sub X, Odd))
Noah Goldstein [Thu, 26 Jan 2023 17:35:51 +0000 (11:35 -0600)]
Add logic for tracking lowbit of (and/xor/or X, (add/sub X, Odd))

Any case of logicop + add/sub(Odd) we can prove the low bit is either
zero/non-zero.

Alive2 Links:
    xor:
        sub x, C: https://alive2.llvm.org/ce/z/aaABdS
        sub C, x: https://alive2.llvm.org/ce/z/2W-ZJ7
        add C, x: https://alive2.llvm.org/ce/z/pzDkte
    or:
        sub x, C: https://alive2.llvm.org/ce/z/xd-bcP
        sub C, x: https://alive2.llvm.org/ce/z/p8hXJF
        add C, x: https://alive2.llvm.org/ce/z/osmkB6
    and:
        sub x, C: https://alive2.llvm.org/ce/z/D_NNxR
        sub C, x: https://alive2.llvm.org/ce/z/N_5C62
        add C, x: https://alive2.llvm.org/ce/z/4cy7a4

Differential Revision: https://reviews.llvm.org/D142427

20 months agoAdd helper for handling `computeKnownBits` for and/xor/or; NFC
Noah Goldstein [Sun, 29 Jan 2023 22:02:38 +0000 (16:02 -0600)]
Add helper for handling `computeKnownBits` for and/xor/or; NFC

This change just factors out the existing logic for and/xor/or and
puts them in a publicly available helper.  functionality is the same.

Differential Revision: https://reviews.llvm.org/D142849

20 months agoAdd tests for KnownBits of (and/xor/or X, (add/sub X, OddV)); NFC
Noah Goldstein [Sun, 29 Jan 2023 22:02:32 +0000 (16:02 -0600)]
Add tests for KnownBits of (and/xor/or X, (add/sub X, OddV)); NFC

Differential Revision: https://reviews.llvm.org/D142426

20 months ago[M68k] Provide exception pointer and selector registers
Min-Yih Hsu [Thu, 19 Jan 2023 19:44:20 +0000 (11:44 -0800)]
[M68k] Provide exception pointer and selector registers

Using d0 for exception pointer and d1 for selector, as suggested by GCC.

20 months agoRevert "Revert "[Tooling/Inclusion] Handle std::get symbol.""
Kadir Cetinkaya [Fri, 24 Feb 2023 00:05:15 +0000 (01:05 +0100)]
Revert "Revert "[Tooling/Inclusion] Handle std::get symbol.""

This reverts commit 7c9b15fbaeb2846ad25e797d55ffe1ccef9e1379. Breakage
was in downstream code.

20 months ago[OpenMP] Fix the wrong use of `fopen`
Shilei Tian [Fri, 24 Feb 2023 00:12:51 +0000 (19:12 -0500)]
[OpenMP] Fix the wrong use of `fopen`

This patch fixes the wrong use of `fopen`.

Fix https://github.com/llvm/llvm-project/issues/60934

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D144601

20 months ago[PGO] Setting ValueProfNode Array's Alignment
Qiongsi Wu [Thu, 23 Feb 2023 22:31:50 +0000 (17:31 -0500)]
[PGO] Setting ValueProfNode Array's Alignment

`instrprof` currently does not set `__llvm_prf_vnds`'s alignment after creating it. The consequence is that the alignment is set to 16 later (https://github.com/llvm/llvm-project/blob/c0f3ac1d0015fd051144a987ff500b888a32be86/llvm/lib/IR/DataLayout.cpp#L1019). This can lead to undefined behaviour when we calculate `NumVNodes` in `lprofGetLoadModuleSignature` (https://github.com/llvm/llvm-project/blob/c0f3ac1d0015fd051144a987ff500b888a32be86/compiler-rt/lib/profile/InstrProfilingMerge.c#L32). The reason is that when the `__llvm_prf_vnds` array is 16 byte aligned, `__llvm_profile_end_vnodes() - __llvm_profile_begin_vnodes()` may not be a multiple of the size of ValueProfNode (which is 24, 20 on 32 bit targets).

This patch sets `__llvm_prf_vnds`'s alignment to its ABI alignment, which always divides its size. Then `__llvm_profile_end_vnodes() - __llvm_profile_begin_vnodes()` will be a multiple of `sizeof(ValueProfNode)`.

Reviewed By: w2yehia, MaskRay

Differential Revision: https://reviews.llvm.org/D144302

20 months ago[clang] fix intendation in newly added release note
Alex Lorenz [Thu, 23 Feb 2023 23:52:21 +0000 (15:52 -0800)]
[clang] fix intendation in newly added release note

This fixes the llvm docs build bot.

20 months ago[mlir][doc] Remove section about now removed `useFoldAPI` option
Markus Böck [Thu, 23 Feb 2023 23:25:17 +0000 (00:25 +0100)]
[mlir][doc] Remove section about now removed `useFoldAPI` option

20 months ago[RISCV] Add vendor-defined XTheadFMemIdx (FP Indexed Memory Operations) extension
Manolis Tsamis [Thu, 23 Feb 2023 23:18:55 +0000 (00:18 +0100)]
[RISCV] Add vendor-defined XTheadFMemIdx (FP Indexed Memory Operations) extension

The vendor-defined XTHeadFMemIdx (no comparable standard extension exists
at the time of writing) extension adds indexed load/store instructions
for floating-point registers.

It is supported by the C9xx cores (e.g., found in the wild in the
Allwinner D1) by Alibaba T-Head.

The current (as of this commit) public documentation for this
extension is available at:
  https://github.com/T-head-Semi/thead-extension-spec/releases/download/2.2.2/xthead-2023-01-30-2.2.2.pdf

Support for these instructions has already landed in GNU Binutils:
  https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=f511f80fa3fcaf6bcbe727fb902b8bd5ec8f9c20

Depends on D144249

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D144647

20 months ago[scudo] Mark all blocks in a range without visiting each of them
Chia-hung Duan [Thu, 23 Feb 2023 22:51:29 +0000 (22:51 +0000)]
[scudo] Mark all blocks in a range without visiting each of them

When all the blocks in the group are known to be used, we should just
mark the pages in the range as all counted instead of visiting each of
them. This will reduce the time of marking free blocks especially for
smaller size class.

Reviewed By: cferris

Differential Revision: https://reviews.llvm.org/D141958

20 months agoRevert "[Tooling/Inclusion] Handle std::get symbol."
Caroline Tice [Thu, 23 Feb 2023 23:10:36 +0000 (15:10 -0800)]
Revert "[Tooling/Inclusion] Handle std::get symbol."

This reverts commit cbcb3eef70def3509bdffd4fe1ebfb6422afeaa2.

Causing many clangd test breakages, similar to:

error: no matching constructor for initialization of 'llvm::SmallVector<clang::tooling::stdlib::Header>'
                : llvm::SmallVector<clang::tooling::stdlib::Header>(
                  ^

20 months ago[RISCV] Add vendor-defined XTheadMemIdx (Indexed Memory Operations) extension
Manolis Tsamis [Thu, 23 Feb 2023 23:04:08 +0000 (00:04 +0100)]
[RISCV] Add vendor-defined XTheadMemIdx (Indexed Memory Operations) extension

The vendor-defined XTHeadMemIdx (no comparable standard extension exists
at the time of writing) extension adds indexed load/store instructions
as well as load/store and update register instructions.

It is supported by the C9xx cores (e.g., found in the wild in the
Allwinner D1) by Alibaba T-Head.

The current (as of this commit) public documentation for this
extension is available at:
  https://github.com/T-head-Semi/thead-extension-spec/releases/download/2.2.2/xthead-2023-01-30-2.2.2.pdf

Support for these instructions has already landed in GNU Binutils:
  https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=27cfd142d0a7e378d19aa9a1278e2137f849b71b

Depends on D144002

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D144249

20 months ago[clang][driver] Handle '-mrelax' and '-mno-relax' for AVR
Ben Shi [Thu, 23 Feb 2023 07:39:02 +0000 (15:39 +0800)]
[clang][driver] Handle '-mrelax' and '-mno-relax' for AVR

Reviewed By: MaskRay, aykevl

Fixes https://github.com/llvm/llvm-project/issues/54508

Differential Revision: https://reviews.llvm.org/D144620

20 months ago[llvm] Teach GlobalDCE about dso_local_equivalent
Leonard Chan [Tue, 18 Oct 2022 18:23:48 +0000 (18:23 +0000)]
[llvm] Teach GlobalDCE about dso_local_equivalent

This way, C++ relative-vtables can also participate in GlobalDCE. This
depends on some TypeMetadataUtils.cpp bits in D134320, but that
dependency can be removed and included here if necessary.

Differential Revision: https://reviews.llvm.org/D135928

20 months ago[Driver] Define BareMetal::HasNativeLLVMSupport to return true
Fangrui Song [Thu, 23 Feb 2023 23:06:02 +0000 (15:06 -0800)]
[Driver] Define BareMetal::HasNativeLLVMSupport to return true

D33259 switched the default linker to ld.lld which supports LLVM LTO.
We can support LTO compile/link in one command and drop the
`unable to pass LLVM bit-code files to linker` error.

Fix https://github.com/llvm/llvm-project/issues/52807

20 months ago[-Wunsafe-buffer-usage] Fixits for assignments to array subscript expressions
Ziqing Luo [Thu, 23 Feb 2023 22:53:43 +0000 (14:53 -0800)]
[-Wunsafe-buffer-usage] Fixits for assignments to array subscript expressions

Let generate fix-its to make assignments' left-hand side of the form
`dre[e]` safe if `e` is known to be non-negative.

Commit on behalf of jkorous (Jan Korous)

Reviewed by: NoQ (Artem Dergachev)

Differential revision: https://reviews.llvm.org/D142794

20 months ago[clang] extend external_source_symbol attribute with USR clause
Alex Lorenz [Thu, 23 Feb 2023 22:14:14 +0000 (14:14 -0800)]
[clang] extend external_source_symbol attribute with USR clause

Allow the user to specify a concrete USR in the external_source_symbol attribute.
That will let Clang's indexer to use Swift USRs for Swift declarations that are
represented with C++ declarations.

This new clause is used by Swift when generating a C++ header representation
of a Swift module:
https://github.com/apple/swift/pull/63002

Differential Revision: https://reviews.llvm.org/D141324

20 months agoAdd tests to reproduce pointer/index width confusion crashes
Krzysztof Drewniak [Thu, 23 Feb 2023 21:47:48 +0000 (21:47 +0000)]
Add tests to reproduce pointer/index width confusion crashes

Some calls to GEPOperator::accumulateConstantOffset(APInt) passed the
pointer bitwidth as the width of the APInt, while the function asserts
that the width of its argument is equal to the index width of the GEP
pointer input. These values are almost always the same, so mixing up
which call to use doesn't usually cause issues. However, when dealing
with data layouts where these values are different, the passes tested
here can crash.

This will be fixed in D143437 .

Differential Revision: https://reviews.llvm.org/D144673

20 months ago[-Wunsafe-buffer-usage] Create Fix-Its only if they are emitted
Ziqing Luo [Thu, 23 Feb 2023 22:43:21 +0000 (14:43 -0800)]
[-Wunsafe-buffer-usage] Create Fix-Its only if they are emitted

`-Wunsafe-buffer-usage` diagnostics shall not emit fix-its if fix-its
are globally disabled.

Commit on behalf of jkorous (Jan Korous)

Reviewed by: NoQ (Artem Dergachev)

Differential revision: https://reviews.llvm.org/D143697

20 months ago[mlir][LinAlg][Transform] Add a transform op for conv2d to im2col
Quentin Colombet [Thu, 23 Feb 2023 22:26:15 +0000 (22:26 +0000)]
[mlir][LinAlg][Transform] Add a transform op for conv2d to im2col

This patch adds patterns to convert `linalg.conv_2d_xxx` operations
into `linalg.generic` (for img2col packing) and `linalg.matmul`.

The meat of the patch comes straight from IREE
(https://github.com/iree-org/iree).
(To the original authors are you okay with that?)

What this patch adds is proper plumbing of the im2col patterns into the
transform dialect.

PS: Feel free to add more reviewers. I wanted to cover the original contributors of im2col in IREE but I'm not sure I got all of them.

Reviewed By: nicolasvasilache, ThomasRaoux

Differential Revision: https://reviews.llvm.org/D144108

20 months ago[llvm] Teach whole program devirtualization about relative vtables
Leonard Chan [Mon, 26 Sep 2022 20:27:09 +0000 (20:27 +0000)]
[llvm] Teach whole program devirtualization about relative vtables

Prior to this patch, WPD was not acting on relative-vtables in C++. This
involves teaching WPD about these things:

- llvm.load.relative which is how relative-vtables are indexed (instead of GEP)
- dso_local_equivalent which is used in the vtable itself when taking the
  offset between a virtual function and vtable
- Update llvm/test/ThinLTO/X86/devirt.ll to use opaque pointers and add
  equivalent tests for RV

Differential Revision: https://reviews.llvm.org/D134320

20 months agoAdd REQUIRES: riscv to riscv test
Leonard Chan [Thu, 23 Feb 2023 22:16:49 +0000 (22:16 +0000)]
Add REQUIRES: riscv to riscv test

This should fix builders like
https://lab.llvm.org/buildbot/#/builders/139/builds/36522

20 months ago[lld][RISCV] Introduce handling for R_RISCV_PLT32 relocation
Leonard Chan [Thu, 23 Feb 2023 22:05:11 +0000 (22:05 +0000)]
[lld][RISCV] Introduce handling for R_RISCV_PLT32 relocation

This introduces R_RISCV_PLT32, a PC-relative data relocation that takes
the 32-bit relative offset to a function or its PLT entry.

This is needed to support relative vtables on RISCV.

Github PR: https://github.com/riscv-non-isa/riscv-elf-psabi-doc/pull/363

D143226 has the llvm parts.

Differential Revision: https://reviews.llvm.org/D143115

20 months ago[LTO/WPD] Allow devirtualization to function alias in vtable
Teresa Johnson [Fri, 17 Feb 2023 15:38:01 +0000 (07:38 -0800)]
[LTO/WPD] Allow devirtualization to function alias in vtable

Follow on to D144209 to support single implementation devirtualization
for Regular LTO when the vtable holds a function alias.

For now I have prevented other optimizations performed in regular LTO
that need to analyze the contents of the function target when the vtable
holds an alias, as I'm not sure they are always correct to perform in
that case.

Differential Revision: https://reviews.llvm.org/D144270

20 months ago[HWASAN][LSAN] Only initialize Symbolizer if leak checking is enabled
Kirill Stoimenov [Thu, 23 Feb 2023 20:30:53 +0000 (20:30 +0000)]
[HWASAN][LSAN] Only initialize Symbolizer if leak checking is enabled

Reviewed By: hctim

Differential Revision: https://reviews.llvm.org/D144669

20 months ago[libc++] Run modules_include.sh.cpp compiles in parallel
Nikolas Klauser [Thu, 23 Feb 2023 12:33:55 +0000 (13:33 +0100)]
[libc++] Run modules_include.sh.cpp compiles in parallel

It's not pretty, but it makes the test run a lot faster.

Reviewed By: #libc, philnik

Spies: DavidSpickett, libcxx-commits

Differential Revision: https://reviews.llvm.org/D144640

20 months ago[InstCombine] add tests for select of div/rem with common operand; NFC
Sanjay Patel [Thu, 23 Feb 2023 19:49:59 +0000 (14:49 -0500)]
[InstCombine] add tests for select of div/rem with common operand; NFC

issue #60906

20 months ago[MC][nfc] Don't use a value after it has been std::move()'d
Jez Ng [Thu, 23 Feb 2023 20:15:14 +0000 (15:15 -0500)]
[MC][nfc] Don't use a value after it has been std::move()'d

Reviewed By: serge-sans-paille

Differential Revision: https://reviews.llvm.org/D144662

20 months ago[clang-tidy][doc] Remove unused variable
Björn Svensson [Thu, 23 Feb 2023 20:06:43 +0000 (20:06 +0000)]
[clang-tidy][doc] Remove unused variable

Remove mention of a variable that is not used in the example for checker:
cppcoreguidelines-avoid-non-const-global-variables

Differential Revision: https://reviews.llvm.org/D143996

20 months ago[SCEV] Ensure SCEV does not replace aliases with their aliasees
Leonard Chan [Thu, 23 Feb 2023 19:58:29 +0000 (19:58 +0000)]
[SCEV] Ensure SCEV does not replace aliases with their aliasees

Passes in general shouldn't replace an alias with the aliasee (see
https://reviews.llvm.org/D66606). This can lead to situations where a
linkonce_odr symbol (which could be interposable if lowered to weak
linkage) can be replaced with a local aliasee which won't be
interposable. SVEC does this when the function is invoked by
FunctionPass Manager -> Loop Pass Manager -> Induction Variable Users in
the codegen pipeline. This was found in hwasan instrumented code where a
linonce_odr alias was replaced with its private aliasee.

This fixes the bug descriped at
https://github.com/llvm/llvm-project/issues/60668.

Differential Revision: https://reviews.llvm.org/D144035

20 months ago[ASan][libcxx] Annotating std::vector with all allocators
Advenam Tacet [Thu, 23 Feb 2023 19:45:57 +0000 (20:45 +0100)]
[ASan][libcxx] Annotating std::vector with all allocators

This revision is a part of a series of patches extending
AddressSanitizer C++ container overflow detection
capabilities by adding annotations, similar to those existing
in std::vector, to std::string and std::deque collections.
These changes allow ASan to detect cases when the instrumented
program accesses memory which is internally allocated by
the collection but is still not in-use (accesses before or
after the stored elements for std::deque, or between the size and
capacity bounds for std::string).

The motivation for the research and those changes was a bug,
found by Trail of Bits, in a real code where an out-of-bounds read
could happen as two strings were compared via a std::equals function
that took iter1_begin, iter1_end, iter2_begin iterators
(with a custom comparison function).
When object iter1 was longer than iter2, read out-of-bounds on iter2
could happen. Container sanitization would detect it.

In revision D132522, support for non-aligned memory buffers (sharing
first/last granule with other objects) was added, therefore the
check for standard allocator is not necessary anymore.
This patch removes the check in std::vector annotation member
function (__annotate_contiguous_container) to support
different allocators.

Additionally, this revision fixes unpoisoning in std::vector.
It guarantees that __alloc_traits::deallocate may access returned memory.
Originally suggested in D144155 revision.

If you have any questions, please email:
 - advenam.tacet@trailofbits.com
 - disconnect3d@trailofbits.com

Reviewed By: #libc, #sanitizers, philnik, vitalybuka

Spies: hans, EricWF, philnik, #sanitizers, libcxx-commits

Differential Revision: https://reviews.llvm.org/D136765

20 months ago[clangd/index/remote]NFC: Adapt code to newer grpc/protobuf versions
Matthias Braun [Wed, 22 Feb 2023 23:25:11 +0000 (15:25 -0800)]
[clangd/index/remote]NFC: Adapt code to newer grpc/protobuf versions

It seems newer grpc / protobuf versions renamed
`Status::error_message()` and `Status::error_code()` to `message()` and
`code()` to prepare for replacement with `absl::Status` with the same
names.

As far as I can tell the new names are already available in the
grpc-1.36 version mentioned in the `README` file.

Differential Revision: https://reviews.llvm.org/D144599

20 months ago[Libomptarget] Adjust the info.c test now that printing is common
Joseph Huber [Thu, 23 Feb 2023 19:24:40 +0000 (13:24 -0600)]
[Libomptarget] Adjust the info.c test now that printing is common

Summary:
Ever since the change to the new plugins the information messages are
common between the major plugins. This allows us to test the info.c file
generically.

20 months ago[Libomptarget] Add the CUDA feature to the packager
Joseph Huber [Thu, 23 Feb 2023 19:22:54 +0000 (13:22 -0600)]
[Libomptarget] Add the CUDA feature to the packager

Summary:
Internally we need to know the feature that was used to build the CUDA.
This used to be added when the deviceRTL was build via the OpenMP
interface, but ever since it was moved to call the packager explicitly
it was not being added. This causes failured if the user attempts to use
the library without LTO enabled.

20 months ago[debugserver] Add one additional sleep before attaching after waiting
Alex Langford [Sat, 18 Feb 2023 01:27:14 +0000 (17:27 -0800)]
[debugserver] Add one additional sleep before attaching after waiting

It's possible for debugserver to attach to a process during the handoff
between /usr/lib/dyld and the dyld in the shared cache. When that
happens, we may end up in a state where there is no dyld in the process
and our debugging session is doomed. To make that scenario a lot less
likely, we can insert a sleep right before attaching after waiting to
find the right pid.

rdar://105513180

Differential Revision: https://reviews.llvm.org/D144311

20 months ago[mlir][tensor] Improve size inference in tiling tensor.pack ops.
Hanhan Wang [Thu, 23 Feb 2023 00:58:37 +0000 (16:58 -0800)]
[mlir][tensor] Improve size inference in tiling tensor.pack ops.

The sizes of input operands need being clampled only when there are
incomplete tiles, i.e., the padding value is set. The shape input slice
can be folded into constants when they are static shapes and tiling
sizes.

Reviewed By: chelini

Differential Revision: https://reviews.llvm.org/D144604

20 months ago[AMDGPU] Move V_FMA_MIX pattern matching into tablegen. NFC
Justin Bogner [Thu, 23 Feb 2023 01:45:58 +0000 (17:45 -0800)]
[AMDGPU] Move V_FMA_MIX pattern matching into tablegen. NFC

The matching for V_FMA_MIX was partially implemented with a C++
matcher (for fmas with 32 bit results and 16 bit inputs) and partially
in tablegen (for fmas with 16 bit results). Move the C++ matcher logic
into tablegen to make this more consistent and so we can remove the
duplication between SDAG and GISel.

Differential Revision: https://reviews.llvm.org/D144612

20 months agoRevert "[Pipeline] Move ControlHeightReduction to module optimization pipeline"
Arthur Eubanks [Thu, 23 Feb 2023 17:47:58 +0000 (09:47 -0800)]
Revert "[Pipeline] Move ControlHeightReduction to module optimization pipeline"

This reverts commit b374423304a8d91d590d0ce5ab1b381296d6dfb2.

Causes regressions on some benchmarks.

20 months ago[Flang][Driver] NFC: Fix plugin test to work on Mac
Kiran Chandramohan [Thu, 23 Feb 2023 16:55:06 +0000 (16:55 +0000)]
[Flang][Driver] NFC: Fix plugin test to work on Mac

Minor modifications to Diagnostic expectation to match the error generated in Mac.
Tested on M1 Mac.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D144630

20 months agoName threadpool threads.
Benoit Jacob [Thu, 16 Feb 2023 15:23:13 +0000 (15:23 +0000)]
Name threadpool threads.

This gives our worker threads some names that allow easily identifying them in tools such as profilers and debuggers.

Differential Revision: https://reviews.llvm.org/D144297

20 months agoRevert "[DAGCombine] Fold redundant select"
Samuel Parker [Thu, 23 Feb 2023 14:29:35 +0000 (14:29 +0000)]
Revert "[DAGCombine] Fold redundant select"

This reverts commit c7f9344d0f8f6a00adab138037e2e7b406ef2b69.

20 months ago[scudo] Disable the GetRssFromBuffer scudo test on PPC
Amy Kwan [Thu, 23 Feb 2023 17:46:37 +0000 (11:46 -0600)]
[scudo] Disable the GetRssFromBuffer scudo test on PPC

The GetRssFromBuffer scudo test case fails intermittently on Power, so this test
is disabled on the platform because of this.

20 months ago[mlir][sparse] support sparse tensor element type conversion in codegen path
Peiming Liu [Wed, 22 Feb 2023 19:04:02 +0000 (19:04 +0000)]
[mlir][sparse] support sparse tensor element type conversion in codegen path

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D144578

20 months ago[LegalizeTypes] Add a special case for (add X, 1) to ExpandIntRes_ADDSUB.
Craig Topper [Thu, 23 Feb 2023 17:47:42 +0000 (09:47 -0800)]
[LegalizeTypes] Add a special case for (add X, 1) to ExpandIntRes_ADDSUB.

On targets without ADDCARRY or ADDE, we need to emit a separate
SETCC to determine carry from the low half to the high half. Usually
we do (setult Lo, LHSLo). If RHSLo is 1 we can instead do (seteq Lo, 0).
This can reduce the live range of LHSLo.

20 months agoSkip using this[:1] map info for non-member variable.
Jennifer Yu [Thu, 23 Feb 2023 03:57:30 +0000 (19:57 -0800)]
Skip using this[:1] map info for non-member variable.

This fix runtime problem due to generate this[:1] map info for non member
variable.
To fix this check VD, if VD is not null, it is not member from current
or base classes.

Differential Revision: https://reviews.llvm.org/D144616

20 months ago[mlir][GPU] Fix incorrect API usage in RewritePatterns
Matthias Springer [Thu, 23 Feb 2023 17:15:14 +0000 (18:15 +0100)]
[mlir][GPU] Fix incorrect API usage in RewritePatterns

Incorrect API usage was detected by D144552.

Differential Revision: https://reviews.llvm.org/D144637

20 months ago[LegalizeTypes][RISCV] Add a special case to ExpandIntRes_UADDSUBO for (uaddo X, 1).
Craig Topper [Thu, 23 Feb 2023 17:16:54 +0000 (09:16 -0800)]
[LegalizeTypes][RISCV] Add a special case to ExpandIntRes_UADDSUBO for (uaddo X, 1).

On targets that lack ADDCARRY support we split a wide uaddo into
an ADD and a SETCC that both need to be split.

For (uaddo X, 1) we can observe that when the add overflows the result
will be 0. We can emit (seteq (or Lo, Hi), 0) to detect this.

This improves D142071.

There is an alternative here. We could use either ~(lo(X) & hi(X)) == 0 or
(lo(X) & hi(X)) == -1 before the addition. That would be closer to the
code before D142071.

Reviewed By: liaolucy

Differential Revision: https://reviews.llvm.org/D144614

20 months agoMove the BySpelling map to IncludeStructure.
Viktoriia Bakalova [Tue, 7 Feb 2023 16:52:51 +0000 (16:52 +0000)]
Move the BySpelling map to IncludeStructure.

Differential Revision: https://reviews.llvm.org/D143509

20 months ago[flang][NFC] Remove unused variable
Valentin Clement [Thu, 23 Feb 2023 17:06:34 +0000 (18:06 +0100)]
[flang][NFC] Remove unused variable

20 months ago[Clang] Teach buildFMulAdd to peek through fneg to find fmul.
Craig Topper [Thu, 23 Feb 2023 17:05:59 +0000 (09:05 -0800)]
[Clang] Teach buildFMulAdd to peek through fneg to find fmul.

Allows us to handle expressions like -(a * b) + c

Based on the examples from D144366 that gcc seems to get.

Reviewed By: kpn

Differential Revision: https://reviews.llvm.org/D144447