platform/upstream/llvm.git
21 months agoResolve a FIXME in MachineCopyPropagation by allowig propagation to subregister uses.
Owen Anderson [Sat, 14 Jan 2023 04:40:04 +0000 (21:40 -0700)]
Resolve a FIXME in MachineCopyPropagation by allowig propagation to subregister uses.

Reviewed By: barannikov88

Differential Revision: https://reviews.llvm.org/D141747

21 months ago[Mips] Simplify loadImmediate (NFC)
Kazu Hirata [Thu, 26 Jan 2023 04:54:43 +0000 (20:54 -0800)]
[Mips] Simplify loadImmediate (NFC)

loadImmediate computes ShiftAmount in an unnecessarily complicated
manner.  We just need to know the minimum right shift amount to bring
the immediate down to an unsigned 16-bit value, so

  unsigned ShiftAmount = llvm::bit_width((uint64_t)ImmValue) - 16;

is sufficient.  In other words, the following are all equivalent:

  unsigned ShiftAmount = FirstSet - (15 - (LastSet - FirstSet));
  unsigned ShiftAmount = llvm::countr_zero(IV) - (15 - (63 - llvm::countl_zero(IV) - llvm::countr_zero(IV)));
  unsigned ShiftAmount = llvm::countr_zero(IV) - 15 + (63 - llvm::countl_zero(IV) - llvm::countr_zero(IV));
  unsigned ShiftAmount = 48 - llvm::countl_zero(IV);
  unsigned ShiftAmount = 64 - llvm::countl_zero(IV) - 16;
  unsigned ShiftAmount = llvm::bit_width(IV) - 16;

where IV represents (uint64)ImmValue.  I've also checked the
equivalence empirically up to 2u << 32.

21 months ago[Mips] Simplify isShiftedUIntAtAnyPosition (NFC)
Kazu Hirata [Thu, 26 Jan 2023 04:44:53 +0000 (20:44 -0800)]
[Mips] Simplify isShiftedUIntAtAnyPosition (NFC)

isShiftedUIntAtAnyPosition never gets zero as the argument because the
caller processes ImmValue satisfying isInt<16>(ImmValue), which
includes zero, long before it calls isShiftedUIntAtAnyPosition.

Given that the argument is always nonzero, findFirstSet is identical
to llvm::countr_zero.  Also, x == x >> BitNum << BitNum is always
true, so we are left with:

  isUInt<N>(x >> llvm::countr_zero(x))

Just in case the caller changes its behavior and starts passing zero
to us, we can protect the shift from undefined behavior "x << 64" by
adding "x &&".

21 months agoRevert "[llvm-cov] Look up object files using debuginfod"
Douglas Yung [Thu, 26 Jan 2023 03:11:08 +0000 (19:11 -0800)]
Revert "[llvm-cov] Look up object files using debuginfod"

This reverts commit efbc8bb18eda63007216ad0cb5a8de04963eddd5.

This change is causing failures when detecting curl on several build bots:
 - https://lab.llvm.org/buildbot/#/builders/247/builds/884
 - https://lab.llvm.org/buildbot/#/builders/231/builds/7688
 - https://lab.llvm.org/buildbot/#/builders/121/builds/27389
 - https://lab.llvm.org/buildbot/#/builders/230/builds/8464
 - https://lab.llvm.org/buildbot/#/builders/57/builds/24209
 - https://lab.llvm.org/buildbot/#/builders/127/builds/42722

21 months agoRevert "Fix compilation failure in CoverageMapping.cpp"
Douglas Yung [Thu, 26 Jan 2023 03:10:29 +0000 (19:10 -0800)]
Revert "Fix compilation failure in CoverageMapping.cpp"

This reverts commit 46013fc10a6879f4c9b4c9b9fbd43e4dc70f3c8b.

The original commit efbc8bb18eda63007216ad0cb5a8de04963eddd5 is failing on several bots, so
reverting this follow-up commit as well as the original commit.

21 months agoAMDGPU: Add fneg from integer tests
Matt Arsenault [Mon, 23 Jan 2023 20:16:44 +0000 (16:16 -0400)]
AMDGPU: Add fneg from integer tests

21 months agoVerifier: Add checks for associated metadata
Matt Arsenault [Mon, 9 Jan 2023 17:17:38 +0000 (12:17 -0500)]
Verifier: Add checks for associated metadata

Also add missing assembler test for the valid cases.

21 months ago[RISCV] Rename CS_ALU tablegen class to CA_ALU. NFC
Craig Topper [Thu, 26 Jan 2023 01:08:42 +0000 (17:08 -0800)]
[RISCV] Rename CS_ALU tablegen class to CA_ALU. NFC

The format this uses is CA. I think it may have once shared CS and
this didn't get renamed when that changed in D54302.

21 months ago[MLIR] Fix python tests for LocationAttr
Andrew Young [Thu, 26 Jan 2023 01:01:11 +0000 (17:01 -0800)]
[MLIR] Fix python tests for LocationAttr

Follow up to https://reviews.llvm.org/D142522.  I forgot to push the
test changes, was caught only in the post-merge builds.

21 months agoGVN.cpp: Suppress a warning in D141712 [-Wunused-variable]
NAKAMURA Takumi [Thu, 26 Jan 2023 00:52:38 +0000 (09:52 +0900)]
GVN.cpp: Suppress a warning in D141712 [-Wunused-variable]

21 months ago[bazel] Port efbc8bb18e
Benjamin Kramer [Thu, 26 Jan 2023 00:49:59 +0000 (01:49 +0100)]
[bazel] Port efbc8bb18e

21 months ago[flang] Add driver install directory to AIX toolchain program paths list.
Paul Scoropan [Wed, 25 Jan 2023 23:23:42 +0000 (23:23 +0000)]
[flang] Add driver install directory to AIX toolchain program paths list.

flang-new encounters an issue where its unable to invoke itself because the
install directory was missing from the program paths on AIX.

Reviewed By: w2yehia

Differential Revision: https://reviews.llvm.org/D140628

21 months agoMigrate away from C++20-deprecated POD type traits
David Blaikie [Thu, 26 Jan 2023 00:14:30 +0000 (00:14 +0000)]
Migrate away from C++20-deprecated POD type traits

21 months agoAMDGPU: Remove redundant test
Matt Arsenault [Wed, 25 Jan 2023 19:10:44 +0000 (15:10 -0400)]
AMDGPU: Remove redundant test

implicit-arg-v5-opt.ll already covers this with more cases.

21 months ago[MLIR] Add LocationAttr to the Python API
Andrew Young [Thu, 19 Jan 2023 23:01:46 +0000 (15:01 -0800)]
[MLIR] Add LocationAttr to the Python API

This is a follow up to D142182, to expose LocationAttrs through Python.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D142522

21 months ago[NFC] clang-format OpenMPOpt.cpp
Shilei Tian [Thu, 26 Jan 2023 00:05:53 +0000 (19:05 -0500)]
[NFC] clang-format OpenMPOpt.cpp

21 months ago[clang-doc] Removed unused method in the Info class
Paul Kirth [Wed, 25 Jan 2023 23:55:02 +0000 (23:55 +0000)]
[clang-doc] Removed unused method in the Info class

Reviewed By: brettw

Differential Revision: https://reviews.llvm.org/D142577

21 months ago[libc] add scanf pointer conversion
Michael Jones [Tue, 24 Jan 2023 22:41:28 +0000 (14:41 -0800)]
[libc] add scanf pointer conversion

This patch adds the last conversion for scanf, %p. It is set up to match
the %p implementation in our printf.

Reviewed By: sivachandra, lntue

Differential Revision: https://reviews.llvm.org/D142510

21 months ago[libc] add scanf current position conversion
Michael Jones [Tue, 24 Jan 2023 19:25:54 +0000 (11:25 -0800)]
[libc] add scanf current position conversion

To add the current position (%n) conversion, some reorganization needed
to be done. The "write a number to this pointer using the length
modifier" utilities and a couple other shared parsing functions have
been moved into converter_utils.h. This made implementing
current_pos_converter very simple.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D142495

21 months ago[llvm][NFC] Rename variables to match style guide in Local.cpp
Paul Kirth [Wed, 25 Jan 2023 21:34:01 +0000 (21:34 +0000)]
[llvm][NFC] Rename variables to match style guide in Local.cpp

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D142579

21 months ago[mlir-translate] More specific error message for BlockAddress
Arthur Lafrance [Wed, 25 Jan 2023 21:02:16 +0000 (13:02 -0800)]
[mlir-translate] More specific error message for BlockAddress

BlockAddress is currently unimplemented in the LLVM dialect of MLIR;
when converting to LLVM dialect MLIR from LLVM IR, mlir-translate
currently terminates with an "unhandled constant" error message.
Instead, this message could be made more specific, to let the user know
that the specific issue is that BlockAddress is unimplemented in the
LLVM dialect.

Differential Revision: https://reviews.llvm.org/D142337

21 months agoFix compilation failure in CoverageMapping.cpp
Daniel Thornburgh [Wed, 25 Jan 2023 22:34:45 +0000 (14:34 -0800)]
Fix compilation failure in CoverageMapping.cpp

21 months ago[CUDA] Fix output from `ptxas` being removes as a temporary file
Joseph Huber [Wed, 25 Jan 2023 22:20:16 +0000 (16:20 -0600)]
[CUDA] Fix output from `ptxas` being removes as a temporary file

Summary:
The logic here is to add the `.cubin` temporary file if we had to create
a new filename to handle it. Unfortuantely the logic was wrong because
we compare `const char *` values here. This logic seems to have been
wrong for some time, but was never noticed since we never used the
relocatable output.

Fixes https://github.com/llvm/llvm-project/issues/60301

21 months agoReland [pgo] Avoid introducing relocations by using private alias
Paul Kirth [Thu, 19 Jan 2023 20:47:43 +0000 (20:47 +0000)]
Reland [pgo] Avoid introducing relocations by using private alias

In many cases, we can use an alias to avoid a symbolic relocations,
instead of using the public, interposable symbol. When the instrumented
function is in a COMDAT, we can use a hidden alias, and still avoid
references to discarded sections.

Previous versions of this patch allowed the compiler to name the
generated alias, but that would only be valid when the functions were
local. Since the alias may be used across TUs we use a more
deterministic naming convention, and add a ".local" suffix to the alias
name just as we do for relative vtables aliases.

https://reviews.llvm.org/rG20894a478da224bdd69c91a22a5175b28bc08ed9
removed an incorrect assertion on Mach-O which caused assertion failures in LLD.

We prevent duplicate symbols under ThinLTO + PGO + CFI by disabling
alias generation when the target function has MD_type metadata used in
CFI.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D137982

21 months ago[llvm-cov] Look up object files using debuginfod
Daniel Thornburgh [Mon, 24 Oct 2022 22:35:00 +0000 (15:35 -0700)]
[llvm-cov] Look up object files using debuginfod

Reviewed By: gulfem

Differential Revision: https://reviews.llvm.org/D136702

21 months ago[unittests] Use GTEST_SKIP() instead of return when appropriate
Paul Robinson [Wed, 25 Jan 2023 21:58:34 +0000 (13:58 -0800)]
[unittests] Use GTEST_SKIP() instead of return when appropriate

Basically NFC: A TEST/TEST_F/etc that bails out early (usually because
setup failed or some other runtime condition wasn't met) generally
should use GTEST_SKIP() to report its status correctly, unless it
takes steps to report another status (e.g., FAIL()).

I did see a handful of tests show up as SKIPPED after this change,
which is not unexpected. The status seemed appropriate in all the new
cases.

21 months ago[libc] fix strtointmax tests
Michael Jones [Wed, 25 Jan 2023 00:08:41 +0000 (16:08 -0800)]
[libc] fix strtointmax tests

The strtointmax tests weren't running because they depend on the same
shared logic as strtol tests and the target for that was being defined
after the inttypes targets, causing them to be skipped. This patch moves
the inttypes test directory later in the order so that the shared tests
are defined before inttypes tests try to use them.

Reviewed By: sivachandra, lntue

Differential Revision: https://reviews.llvm.org/D142515

21 months ago[SCCP] Add additional tests for Add NUW/NSW flag inference.
Florian Hahn [Wed, 25 Jan 2023 21:41:14 +0000 (21:41 +0000)]
[SCCP] Add additional tests for Add NUW/NSW flag inference.

21 months ago[amdgpuarch] Delete stray hsa #include line
Jon Chesterfield [Wed, 25 Jan 2023 21:38:49 +0000 (21:38 +0000)]
[amdgpuarch] Delete stray hsa #include line

21 months ago[CodeGen] Split some functionality from DetectDeadLanes into its own class to be...
Craig Topper [Wed, 25 Jan 2023 21:09:58 +0000 (13:09 -0800)]
[CodeGen] Split some functionality from DetectDeadLanes into its own class to be reused. NFC

This is an alternative to D140382.

This moves the first part of runOnce into a new class that can be
reused by D129735. This encapsulates the ownership of the worklist,
and VRegInfos into the new class. The code for updating the dead
lanes stays in the DetectDeadLanes class.

The new class is created on the stack during runOnMachineFunction
so all the data structures will be deleted after each run.
Previously we only cleared them after each run so the memory might
have stayed allocated across runs. Except for VRegInfo which was
always deleted. Hopefully this allocation change isn't a big deal.

Reviewed By: BeMg

Differential Revision: https://reviews.llvm.org/D141993

21 months ago[BOLT][NFC] Remove C-style out of bounds array ref
Rafael Auler [Wed, 25 Jan 2023 19:38:07 +0000 (11:38 -0800)]
[BOLT][NFC] Remove C-style out of bounds array ref

Old code breaks build with libstdc++ with assertions. Fix it.

21 months agoFix clang-tools-extra Sphinx build
Aaron Ballman [Wed, 25 Jan 2023 20:52:49 +0000 (15:52 -0500)]
Fix clang-tools-extra Sphinx build

This addresses the issue found in:
https://lab.llvm.org/buildbot/#/builders/115/builds/41077

21 months ago[AMDGPU] Remove predicates from real dot instructions. NFCI.
Stanislav Mekhanoshin [Wed, 25 Jan 2023 19:58:58 +0000 (11:58 -0800)]
[AMDGPU] Remove predicates from real dot instructions. NFCI.

These are copied from pseudos automatically.

Differential Revision: https://reviews.llvm.org/D142575

21 months ago[Clang] Fix compilation errors for unsupported __bf16 intrinsics
Elizabeth Andrews [Tue, 10 Jan 2023 12:32:05 +0000 (04:32 -0800)]
[Clang] Fix compilation errors for unsupported __bf16 intrinsics

This patch uses existing deferred diagnostics framework to emit error
for unsupported type __bf16 in device code. Error is not emitted in
host code.

Differential Revision: https://reviews.llvm.org/D141375

21 months ago[mlir][Pass] Make PassManager default to op-agnostic
rkayaith [Wed, 9 Nov 2022 04:23:28 +0000 (23:23 -0500)]
[mlir][Pass] Make PassManager default to op-agnostic

Currently `PassManager` defaults to being anchored on `builtin.module`.
Switching the default makes `PassManager` consistent with
`OpPassManager` and avoids the implicit dependency on `builtin.module`.

Specifying the anchor op type isn't strictly necessary when using
explicit nesting (existing pipelines will continue to work), but I've
updated most call sites to specify the anchor since it allows for better
error-checking during pipeline construction.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D137731

21 months agoFix a dead link in the docs
Aaron Ballman [Wed, 25 Jan 2023 20:07:14 +0000 (15:07 -0500)]
Fix a dead link in the docs

The link used to go to a page on Chris Lattner's site that has been
gone since at least 2015. Replaced the link with one that has similar
information to what Chris had.

Fixes #60238

21 months ago[clang-tidy] Fix segfault in bugprone-standalone-empty
Denis Nikitin [Wed, 25 Jan 2023 19:58:38 +0000 (19:58 +0000)]
[clang-tidy] Fix segfault in bugprone-standalone-empty

The check incorrectly identified empty() method call in the template
class definition as a stand-alone function call.
This led to a crash because the checker did not expect empty() function
calls without arguments.

Fixes: https://github.com/llvm/llvm-project/issues/59487

Reviewed By: cjdb

Differential Revision: https://reviews.llvm.org/D142423

21 months ago[Libomptarget] Add correct relative path for the nexgen plugin
Joseph Huber [Wed, 25 Jan 2023 20:04:25 +0000 (14:04 -0600)]
[Libomptarget] Add correct relative path for the nexgen plugin

Summary:
I forgot that this file "borrowed" the source from the other file tree.
Fix that.

21 months ago[Libomptarget] Clean up CUDA plugin CMake files
Joseph Huber [Wed, 25 Jan 2023 19:39:02 +0000 (13:39 -0600)]
[Libomptarget] Clean up CUDA plugin CMake files

Clean up this file after changing it in D142568.

Depends on D142568

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D142573

21 months ago[Libomptarget] Remove find_package(CUDA) as it has been deprecated
Joseph Huber [Wed, 25 Jan 2023 19:19:37 +0000 (13:19 -0600)]
[Libomptarget] Remove find_package(CUDA) as it has been deprecated

Since D137724 and the LLVM 17 release we have updated to CMake version
3.20. This means that `find_package(CUDA)` is officially deprecated and
can be replaced with `find_package(CUDAToolkit)` instead. This patch
does this and also cleans up a bit of the CMake.

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D142568

21 months ago[nvptx-arch] Remove `find_package(CUDA)` as it has been deprecated.
Joseph Huber [Wed, 25 Jan 2023 19:24:34 +0000 (13:24 -0600)]
[nvptx-arch] Remove `find_package(CUDA)` as it has been deprecated.

Since D137724 and the LLVM 17 release we have updated to CMake version
3.20. This means we can use `find_package(CUDAToolkit)` instead as the
legacy module is deprecated.

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D142570

21 months ago[GVN] Improve PRE on load instructions
Guozhi Wei [Wed, 25 Jan 2023 19:45:01 +0000 (19:45 +0000)]
[GVN] Improve PRE on load instructions

This patch implements the enhancement proposed by
https://github.com/llvm/llvm-project/issues/59312.

Suppose we have following code

   v0 = load %addr
   br %LoadBB

 LoadBB:
   v1 = load %addr
   ...

 PredBB:
   ...
   br %cond, label %LoadBB, label %SuccBB

 SuccBB:
   v2 = load %addr
   ...

Instruction v1 in LoadBB is partially redundant, edge (PredBB, LoadBB) is a
critical edge. SuccBB is another successor of PredBB, it contains another load
v2 which is identical to v1. Current GVN splits the critical edge
(PredBB, LoadBB) and inserts a new load in it. A better method is move the load
of v2 into PredBB, then v1 can be changed to a PHI instruction.

If there are two or more similar predecessors, like the test case in the bug
entry, current GVN simply gives up because otherwise it needs to split multiple
critical edges. But we can move all loads in successor blocks into predecessors.

Differential Revision: https://reviews.llvm.org/D141712

21 months ago[BOLT] Use LTO fuzzy name matching in function-order
Amir Ayupov [Wed, 25 Jan 2023 19:37:55 +0000 (11:37 -0800)]
[BOLT] Use LTO fuzzy name matching in function-order

Allow partial name matching wrt LTO suffixes in `function-order`
user-supplied function list, the same as permitted by profile matching.

Reviewed By: #bolt, rafauler

Differential Revision: https://reviews.llvm.org/D142269

21 months ago[BOLT] Emit a warning about invalid entries in function-order list
Amir Ayupov [Wed, 25 Jan 2023 19:37:42 +0000 (11:37 -0800)]
[BOLT] Emit a warning about invalid entries in function-order list

Move individual warnings under verbosity >= 1, print out a warning with
aggregate number.

Reviewed By: #bolt, rafauler

Differential Revision: https://reviews.llvm.org/D142397

21 months ago[mlir][sparse] (re)introducing getRankedTensorType/getMemrefType
wren romano [Tue, 24 Jan 2023 21:23:52 +0000 (13:23 -0800)]
[mlir][sparse] (re)introducing getRankedTensorType/getMemrefType

The bulk of D142074 seems to have gotten overwritten due to some sort of merge conflict (afaict there's no record of it having been reverted intentionally).  So this commit redoes those changes.  In addition to the original changes, this commit also:
* moves the definition of `getRankedTensorType` (from `Transforms/CodegenUtils.h` to `IR/SparseTensor.h`), so that it can be used by `IR/SparseTensorDialect.cpp`.
* adds `getMemRefType` as another abbreviation.

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D142503

21 months ago[mlir][scf] Fix typo in comment in BufferizableOpInterfaceImpl.cpp (NFC).
Ingo Müller [Wed, 25 Jan 2023 16:22:11 +0000 (16:22 +0000)]
[mlir][scf] Fix typo in comment in BufferizableOpInterfaceImpl.cpp (NFC).

Reviewed By: ingomueller-net

Differential Revision: https://reviews.llvm.org/D142554

21 months ago[lldb][test] Replace use of p with expression (NFC)
Dave Lee [Wed, 11 Jan 2023 19:37:07 +0000 (11:37 -0800)]
[lldb][test] Replace use of p with expression (NFC)

In API tests, replace use of the `p` alias with the `expression` command.

To avoid conflating tests of the alias with tests of the expression command,
this patch canonicalizes to the use `expression`.

Differential Revision: https://reviews.llvm.org/D141539

21 months ago[clang][CodeGen][NFC] Fix `llvm-else-after-return`
Michael Liao [Wed, 25 Jan 2023 15:19:44 +0000 (15:19 +0000)]
[clang][CodeGen][NFC] Fix `llvm-else-after-return`

21 months ago[mlir][tosa] Update tosa.avg_pool2d for bit-exact TOSA behavior
Rob Suderman [Wed, 25 Jan 2023 17:58:03 +0000 (17:58 +0000)]
[mlir][tosa] Update tosa.avg_pool2d for bit-exact TOSA behavior

The normalization component of average pool has a very specific
rounding behavior for compouting the division for floating
point values. Updated so that the bit-exact version is implemented.

Also includes a fix for computing the stride part of the average pool
operation.

Reviewed By: jpienaar

Differential Revision: https://reviews.llvm.org/D141339

21 months ago[Clang] Add sanity check in Sema::getDestructorName to prevent nullptr dereference
Shafik Yaghmour [Wed, 25 Jan 2023 18:47:21 +0000 (10:47 -0800)]
[Clang] Add sanity check in Sema::getDestructorName to prevent nullptr dereference

Currently in Sema::getDestructorName we call SS.getScopeRep()->getPrefix() but
SS.getScopeRep() can return nullptr because LookupInNestedNameSpec(...) called a
little before can invalidate SS.

This fixes: https://github.com/llvm/llvm-project/issues/59446

Differential Revision: https://reviews.llvm.org/D140598

21 months agoAMDGPU: Convert some tests to opaque pointers
Matt Arsenault [Wed, 25 Jan 2023 14:04:26 +0000 (10:04 -0400)]
AMDGPU: Convert some tests to opaque pointers

21 months agoLangRef: Fix extra spaces in udec_wrap description
Matt Arsenault [Wed, 25 Jan 2023 13:45:48 +0000 (09:45 -0400)]
LangRef: Fix extra spaces in udec_wrap description

21 months ago[llvm-c] Remove LLVMContextSetOpaquePointers
Arthur Eubanks [Tue, 6 Dec 2022 17:20:08 +0000 (09:20 -0800)]
[llvm-c] Remove LLVMContextSetOpaquePointers

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D139441

21 months agoRevert "Recommit "[SCCP] Use range info to prove AddInst has NUW flag.""
Florian Hahn [Wed, 25 Jan 2023 18:22:24 +0000 (18:22 +0000)]
Revert "Recommit "[SCCP] Use range info to prove AddInst has NUW flag.""

This reverts commit 366e1faa2fffd5b2284e25b09b6a26bcd2aca2b7.

It looks like this exposes another set of crashes on the buildbots.
Revert while I investigate.

21 months agoRecommit "[SCCP] Use range info to prove AddInst has NUW flag."
Florian Hahn [Wed, 25 Jan 2023 18:07:24 +0000 (18:07 +0000)]
Recommit "[SCCP] Use range info to prove AddInst has NUW flag."

The recommitted version fixes a crash when one of the operands is a
constant other than a ConstantInt. Test for that case have been added
in 5b16cd97b8e1c273.

It splits off the new logic into a separate function because setting the
flags is quite different compared to the other cases handled in replaceSignedInst
which all require replacing an existing instruction. Instructions are
now refined before any replacements are done, which has the advantage
that we should have lattice values for all operands (fixing the crashes
and simplifies the logic) and also allows optimizing more cases where one
of the operands also gets replaced (see improvements in
@sge_with_sext_to_zext_conversion).

It also guards makeGuaranteedNoWrapRegion by `if (!Inst.hasNoUnsignedWrap())`
as discussed in the review.

Fixes #60280.
Fixes #60278.

Original message:
    This patch updates SCCP to use the value ranges of AddInst operands to
    try to prove the AddInst does not overflow in the unsigned sense and
    adds the NUW flag. The reasoning is done with
    makeGuaranteedNoWrapRegion (thanks @nikic for point it out!).

    Follow-ups will include adding NSW and extension to more
    OverflowingBinaryOperators.

    Reviewed By: nikic

    Differential Revision: https://reviews.llvm.org/D142387

21 months ago[ScheduleDAG] Fix removing edges with weak deps
Austin Kerbow [Mon, 23 Jan 2023 05:26:08 +0000 (21:26 -0800)]
[ScheduleDAG] Fix removing edges with weak deps

In SUnit::removePred edges are removed from the Preds and Succs lists before
updating the bookkeeping. This could result in incorrect values for
NumPreds/SuccsLeft and cause WeakPreds/SuccsLeft to underflow, since the
incorrect SDep will be used to update these values.

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D142325

21 months agoAvoid removing useful loop metadata when stripping debug info
She Dongrui [Wed, 25 Jan 2023 17:52:48 +0000 (09:52 -0800)]
Avoid removing useful loop metadata when stripping debug info

The stripDebugLocFromLoopID() may mistakenly remove useful metadata nodes
when they are operands of a child node, which also has DILocation operands.

It can be reproduced by the output of clang for code similar to the following:

for(int i = 0; i < n; i++)
  x[i] = 10;
-strip-debug removes the child node of llvm.loop.vectorize.followup_all,
which contains llvm.loop.isvectorized and llvm.loop.unroll.count.

This patch fixes by checking all children nodes and only remove a metadata
node if all its children are DILocation.

Differential Revision: https://reviews.llvm.org/D141909

21 months ago[ASan][libcxx] Annotating std::vector with all allocators
Advenam Tacet [Wed, 25 Jan 2023 18:01:24 +0000 (19:01 +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.

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

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

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

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

21 months ago[libc] Implement strcasestr
Alex Brachet [Wed, 25 Jan 2023 17:58:13 +0000 (17:58 +0000)]
[libc] Implement strcasestr

Differential Revision: https://reviews.llvm.org/D142518

21 months ago[RS4GC] Remove the hardcoded GC strategy names (v2)
Campbell Suter [Wed, 25 Jan 2023 14:12:19 +0000 (17:12 +0300)]
[RS4GC] Remove the hardcoded GC strategy names (v2)

Previously, RewriteStatepointsForGC had a hardcoded list of GC
strategies for which it would run, and using it with a custom strategy
required patching LLVM.

The logic for selecting the variables that are considered managed was
also hardcoded to use pointers in address space 1, rather than
delegating to GCStrategy::isGCManagedPointer.

This patch fixes both of these flaws: this pass now applies to all
functions whose GCStrategy returns true for useStatepoints, and checking
if a pointer is managed or not is also now done by the strategy.

One potentially questionable design decision in this change: the pass will
be enabled for all GC strategies that use statepoints. It seems unlikely
this would be a problem - consumers that don't use this pass probably
aren't adding it to the pass manager anyway - but if you had two different
GC strategies and only one wants this pass enabled then that'd need a new
flag in GCStrategy, which I can add if anyone thinks it's necessary.

This is an updated version of D140458, rebased to account for LLVM's
changes since D140504 (required by this patch) landed.

Reviewed By: dantrushin

Differential Revision: https://reviews.llvm.org/D141110

21 months agoFix assertion in GCStrategy.
Denis Antrushin [Wed, 25 Jan 2023 17:17:06 +0000 (20:17 +0300)]
Fix assertion in GCStrategy.

It meant to check that `UseRS4GC` requires `UseStatepoints`.
Instead it always required `UseStatepoints` when `useRS4GC()`
was called.

21 months ago[llvm-ml] Disallow '{' and '}' at the start of a statement
Sergei Barannikov [Mon, 23 Jan 2023 13:52:20 +0000 (16:52 +0300)]
[llvm-ml] Disallow '{' and '}' at the start of a statement

'{', '}' and (conditionally) '*' were allowed at the start of a
statement. This behavior was copied from AsmParser, where they were
added to support Hexagon bundles (braces) and BFP memory instructions
(the star).
MASM dialect is x86-specific and does not allow these symbols to be
used at the beginning of an instruction.

Worth noting that '{' is a valid first character in AT&T syntax
(e.g. "{vex} vpmadd52huq ..."); MASM variant is to omit the braces.

Reviewed By: epastor

Differential Revision: https://reviews.llvm.org/D142321

21 months ago[flang] Fix element indexing in derived type default initialization
Valentin Clement [Wed, 25 Jan 2023 17:38:34 +0000 (18:38 +0100)]
[flang] Fix element indexing in derived type default initialization

Derived type default initialization was not taking the step into
consideration.

```
module dt_init
  type p1
    integer :: a
  end type
  type, extends(p1) :: p2
    integer :: b = 10
  end type
contains
  subroutine init_dt(z)
    class(p1), intent(out) :: z(:)
    select type(z)
    type is (p2)
      print*,z
    end select
  end subroutine
end module
program test
  use dt_init
  type(p2) :: t(6) = [ p2(1,2),p2(3,4),p2(5,6),p2(7,8),p2(9,10),p2(11,12) ]
  print*,t
  call init_dt(t(::2))
  print*,t
end program
```

Without the fix, the three first elements are initialized

```
 1 2 3 4 5 6 7 8 9 10 11 12
 1 10 5 10 9 10
 1 10 3 10 5 10 7 8 9 10 11 12
```

Where it should be element number 1,3,5

```
 1 2 3 4 5 6 7 8 9 10 11 12
 1 10 5 10 9 10
 1 10 3 4 5 10 7 8 9 10 11 12
```

Reviewed By: klausler

Differential Revision: https://reviews.llvm.org/D142527

21 months ago[BOLT] Use MCInstrDesc::operands() instead of OpInfo
Jay Foad [Wed, 25 Jan 2023 11:29:12 +0000 (11:29 +0000)]
[BOLT] Use MCInstrDesc::operands() instead of OpInfo

operands() is the preferred accessor since D142213. OpInfo will be
removed in D142219.

Differential Revision: https://reviews.llvm.org/D142530

21 months ago[Polly] Remove failing Polly-ACC test.
Michael Kruse [Wed, 25 Jan 2023 17:07:47 +0000 (11:07 -0600)]
[Polly] Remove failing Polly-ACC test.

The test has been failing since after last update of ISL (a749e09e).

21 months ago[LSAN] Attempt to fix the ppc64 build by excluding unsupported test
Kirill Stoimenov [Wed, 25 Jan 2023 17:04:07 +0000 (17:04 +0000)]
[LSAN] Attempt to fix the ppc64 build by excluding unsupported test

Reviewed By: kstoimenov

Differential Revision: https://reviews.llvm.org/D142561

21 months ago[AMDGPU] Make flat_offset a 32-bit operand instead of 16-bits
Mateja Marjanovic [Wed, 25 Jan 2023 15:48:56 +0000 (16:48 +0100)]
[AMDGPU] Make flat_offset a 32-bit operand instead of 16-bits

Differential Revision: https://reviews.llvm.org/D142549

21 months ago[libc] Fix warning in ExecuteFunctionUnix.cpp
Alex Brachet [Wed, 25 Jan 2023 16:49:10 +0000 (16:49 +0000)]
[libc] Fix warning in ExecuteFunctionUnix.cpp

WIFEXITED and friends expect an `int *` but these methods
were marked `const` so they instead got a `const int *`.
This macros aren't actually modifying their argument, but
we were never using these functions on an immutable
`ProcessStatus` type anyway.

21 months ago[Polly] Update ISL to isl-0.25-193-g8621c60c.
Michael Kruse [Wed, 25 Jan 2023 15:56:22 +0000 (09:56 -0600)]
[Polly] Update ISL to isl-0.25-193-g8621c60c.

The bugfix https://reviews.llvm.org/D142308 might already have been
fixed upstream.

21 months ago[libc] Templatize strstr
Alex Brachet [Wed, 25 Jan 2023 16:42:34 +0000 (16:42 +0000)]
[libc] Templatize strstr

Differential Revision: https://reviews.llvm.org/D142517

21 months ago[VPlan] Use VPDominatorTree in VPlanVerifier .
Florian Hahn [Wed, 25 Jan 2023 16:32:40 +0000 (16:32 +0000)]
[VPlan] Use VPDominatorTree in VPlanVerifier .

Use VPDominatorTree to generalize def-use verification.

Depends on D140513.

Reviewed By: Ayal

Differential Revision: https://reviews.llvm.org/D140514

21 months ago[clang][Interp][NFC] Refector OffsetHelper
Timm Bäder [Sat, 31 Dec 2022 15:44:41 +0000 (16:44 +0100)]
[clang][Interp][NFC] Refector OffsetHelper

There was a FIXME comment for this. Stop getting the values in
OffsetHelper and let the caller do that instead, so we can control
whether the value(s) are removed from the stack at all.

Also use ArithOp instead of the unclear boolean for Add.

21 months agoFix warnings
Kazu Hirata [Wed, 25 Jan 2023 16:21:29 +0000 (08:21 -0800)]
Fix warnings

This patch fixes:

  clang-tools-extra/clangd/Hover.cpp:1036:28: warning: unused variable
  ‘MTE’ [-Wunused-variable]

  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp:22295:19: error:
  unused variable 'AN' [-Werror,-Wunused-variable]

21 months ago[clang][Interp][NFC] Cast in InterpFrame::localBlock
Timm Bäder [Sat, 31 Dec 2022 11:53:02 +0000 (12:53 +0100)]
[clang][Interp][NFC] Cast in InterpFrame::localBlock

We know we save a Block* here, so do the cast there instead of
everywhere we're calling this function.

21 months ago[clang][Interp][NFCI] Remove an unnecessary DupPtr op
Timm Bäder [Sat, 31 Dec 2022 08:53:56 +0000 (09:53 +0100)]
[clang][Interp][NFCI] Remove an unnecessary DupPtr op

When initializing a primitive array, we don't need to dup the base
pointer for every element.

21 months ago[mlir] fix crash when call a function decl
Xiang Li [Wed, 25 Jan 2023 15:26:01 +0000 (10:26 -0500)]
[mlir] fix crash when call a function decl

Check region before use it.
Fixes #60215  https://github.com/llvm/llvm-project/issues/60215

Differential Revision: https://reviews.llvm.org/D142544

21 months ago[clang][Interp] Add back Run() call
Timm Bäder [Wed, 28 Dec 2022 08:34:47 +0000 (09:34 +0100)]
[clang][Interp] Add back Run() call

We need to run the functions we compiled immediately after to check if
they can ever be a constant expression.

Differential Revision: https://reviews.llvm.org/D140724

21 months ago[clang][Interp][NFC] Use InitThisField in initializers
Timm Bäder [Wed, 28 Dec 2022 08:44:21 +0000 (09:44 +0100)]
[clang][Interp][NFC] Use InitThisField in initializers

This creates fewer instructions, makes the bytecode easier to read and
InitThisField also cares about checkingPotentialConstantExpression()
cases.

21 months ago[clang][Interp][NFC] Add a helper function for local variables
Timm Bäder [Mon, 26 Dec 2022 10:49:58 +0000 (11:49 +0100)]
[clang][Interp][NFC] Add a helper function for local variables

... in EvalEmitter.

21 months ago[clang][Interp][NFC] Replace remaining dyn_cast_or_null uses
Timm Bäder [Fri, 23 Dec 2022 06:56:58 +0000 (07:56 +0100)]
[clang][Interp][NFC] Replace remaining dyn_cast_or_null uses

21 months ago[AArch64] Remove HasCrypto tablegen predicate. NFC
David Green [Wed, 25 Jan 2023 15:36:01 +0000 (15:36 +0000)]
[AArch64] Remove HasCrypto tablegen predicate. NFC

This is unused, with all relevant patterns and instructions using the
HasAES / HasSHA2 / HasSHA3 / HasSM4 predicates.

21 months ago[Clang] Make the linker wrapper test require Linux
Joseph Huber [Wed, 25 Jan 2023 15:30:51 +0000 (09:30 -0600)]
[Clang] Make the linker wrapper test require Linux

Summary:
We only support this offloading on Linux currently, and this handling of
static libraries is mostly based on Linux systems. So we should only
test those systems for now until we expland to other operating systems
in the future.

21 months ago[clang][Interp] Compound assign operators for FP values
Timm Bäder [Tue, 20 Dec 2022 09:19:56 +0000 (10:19 +0100)]
[clang][Interp] Compound assign operators for FP values

Differential Revision: https://reviews.llvm.org/D140377

21 months ago[clang][Interp][NFC] Get rid of InterpSize
Timm Bäder [Sat, 10 Dec 2022 07:15:09 +0000 (08:15 +0100)]
[clang][Interp][NFC] Get rid of InterpSize

21 months ago[clang][Interp][NFC] Remove an unused function
Timm Bäder [Wed, 7 Dec 2022 15:18:29 +0000 (16:18 +0100)]
[clang][Interp][NFC] Remove an unused function

21 months ago[AMDGCN] Fix device lib test to work with lib64
Siu Chi Chan [Tue, 24 Jan 2023 16:31:04 +0000 (11:31 -0500)]
[AMDGCN] Fix device lib test to work with lib64

This change fixes an issue introduced by
https://reviews.llvm.org/D140315.  A new unit test was added to validate
the search for the device libraries being placed in Clang's resource
directory; however, the test didn't take into account that certain
platforms use lib64 for 64-bit library directory.

Differential Revision: https://reviews.llvm.org/D142506

Change-Id: I9c31a4f08fbc383350d82d6aba01987a3ef63e51

21 months ago[mlir][LLVM] Add result attribute import support
Christian Ulmann [Wed, 25 Jan 2023 14:52:59 +0000 (15:52 +0100)]
[mlir][LLVM] Add result attribute import support

This commit introduces support for importing result attributes.

Depends on D142372

Reviewed By: gysit

Differential Revision: https://reviews.llvm.org/D142476

21 months ago[gn build] Port cb7f58221101
LLVM GN Syncbot [Wed, 25 Jan 2023 14:40:30 +0000 (14:40 +0000)]
[gn build] Port cb7f58221101

21 months agodoc: Fix typo in clang-tidy no-automatic-move doc
MarcoFalke [Wed, 25 Jan 2023 14:39:35 +0000 (15:39 +0100)]
doc: Fix typo in clang-tidy no-automatic-move doc

The latter version is called NotCool in the source code and on godbolt.

21 months agoReplace use of sprintf with snprint in SparseTensorRuntime.cpp (NFC)
Mehdi Amini [Wed, 25 Jan 2023 04:44:22 +0000 (20:44 -0800)]
Replace use of sprintf with snprint in SparseTensorRuntime.cpp (NFC)

This fixes a warning on MacOS:

warning: 'sprintf' is deprecated: This function is provided for compatibility
reasons only.  Due to security concerns inherent in the design of sprintf(3),
it is highly recommended that you use snprintf(3) instead.

21 months agoExclude running MLIR tests for Toy example Ch6 and Ch7 when JIT is unavailable
Mehdi Amini [Wed, 25 Jan 2023 04:43:38 +0000 (20:43 -0800)]
Exclude running MLIR tests for Toy example Ch6 and Ch7 when JIT is unavailable

21 months ago[ADT] FloatingPointMode.h - add missing closing namespace comment. NFC.
Simon Pilgrim [Wed, 25 Jan 2023 12:55:55 +0000 (12:55 +0000)]
[ADT] FloatingPointMode.h - add missing closing namespace comment. NFC.

Fixes clang-tidy warning

21 months ago[clang][Interp] Add empty messages to static_asserts
Timm Bäder [Wed, 25 Jan 2023 14:19:17 +0000 (15:19 +0100)]
[clang][Interp] Add empty messages to static_asserts

To satisfy builders:
https://lab.llvm.org/buildbot/#/builders/216/builds/16264

21 months ago[mlir][doc] Fix syntax for affine.dam_wait
Xiang Li [Tue, 17 Jan 2023 03:29:12 +0000 (22:29 -0500)]
[mlir][doc] Fix syntax for affine.dam_wait

Change dma_Start to dma_wait for affine.dma_wait.
Also change dma_Start to dma_start for affine.dma_start.

Differential Revision: https://reviews.llvm.org/D141887

21 months agoRe-apply "[clang][Interp] Support floating-point values"
Timm Bäder [Wed, 25 Jan 2023 13:51:16 +0000 (14:51 +0100)]
Re-apply "[clang][Interp] Support floating-point values"

Don't move the Repr struct into Integral this time.

Differential Revision: https://reviews.llvm.org/D134859

21 months ago[mlir][LLVM] Add param attr verifiers
Christian Ulmann [Wed, 25 Jan 2023 13:59:24 +0000 (14:59 +0100)]
[mlir][LLVM] Add param attr verifiers

This commit introduces unified parameter attribute verifiers to the LLVM
dialect and removes according checks in the export. As LLVM does not
verify the validity of certain attributes on return values, this commit
unifies the handling of argument and result attributes wherever possible.

Depends on D142212

Reviewed By: gysit

Differential Revision: https://reviews.llvm.org/D142372

21 months agoFix one of the regressions found in revert of concept sugaring
Erich Keane [Tue, 24 Jan 2023 20:49:24 +0000 (12:49 -0800)]
Fix one of the regressions found in revert of concept sugaring

It seems that the sugaring patches had some pretty significant
interdependencies, and at least one issue exists that requires part of
the concept-sugaring patch.  I don't believe this to have anything to do
with the increased compile-times that were seen, so hopefully this will
fix our problems without further regressions.

See https://reviews.llvm.org/rG12cb1cb3720de8d164196010123ce1a8901d8122
for discussion.

Differential Revision: https://reviews.llvm.org/D142500

21 months ago[bazel] fix for 494734b06d62b54fdcbd982f96274dede572ba07
Krasimir Georgiev [Wed, 25 Jan 2023 14:00:10 +0000 (14:00 +0000)]
[bazel] fix for 494734b06d62b54fdcbd982f96274dede572ba07

21 months ago[Flang][Debug] Use pathnames from location of functions
Kiran Chandramohan [Wed, 25 Jan 2023 13:37:54 +0000 (13:37 +0000)]
[Flang][Debug] Use pathnames from location of functions

This ensures that functions in included files have the correct path
in their file metadata.

Note: This patch also sets all locations to have the full path names.

Reviewed By: vzakhari, PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D142263

21 months agoRevert "[clang][Interp] Support floating-point values"
Timm Bäder [Wed, 25 Jan 2023 13:48:16 +0000 (14:48 +0100)]
Revert "[clang][Interp] Support floating-point values"

This reverts commit 62f43c3eae2460d4ca3da7897fd2d7c56920638c.

This breaks a couple of builders, e.g.

https://lab.llvm.org/buildbot/#/builders/139/builds/34925