platform/upstream/llvm.git
2 years agollvm-reduce: Fix missing undef flags in some tests
Matt Arsenault [Tue, 13 Sep 2022 20:50:41 +0000 (16:50 -0400)]
llvm-reduce: Fix missing undef flags in some tests

These caused failures when LiveIntervals is used by the verifier. Also
fix some other errors that appear with subranges enabled.

2 years agollvm-reduce: Use FileCheck instead of python for interestingness test
Matt Arsenault [Tue, 13 Sep 2022 18:57:32 +0000 (14:57 -0400)]
llvm-reduce: Use FileCheck instead of python for interestingness test

Also avoid using cat for no reason.

2 years ago[RISCV] Simpify operand index calculation in createMIROperandComment [nfc]
Philip Reames [Tue, 13 Sep 2022 22:06:11 +0000 (15:06 -0700)]
[RISCV] Simpify operand index calculation in createMIROperandComment [nfc]

2 years agoRevert "Be more careful to maintain quoting information when parsing commands."
Jim Ingham [Tue, 13 Sep 2022 21:59:21 +0000 (14:59 -0700)]
Revert "Be more careful to maintain quoting information when parsing commands."

This reverts commit 6c089b2af5d8d98f66b27b67f70958f520820a76.

This was causing the test test_help_run_hides_options from TestHelp.py to
fail on Linux and Windows (but the test succeeds on macOS).  The decision
to print option information is determined by CommandObjectAlias::IsDashDashCommand
which was changed, but only by replacing an inline string constant with a const char *
CommandInterpreter::g_argument which has the same string value.  I can't see why this
would fail, I'll have to spin up a vm to see if I can repo there.

2 years agoRevert "constexpr isn't right here."
Jim Ingham [Tue, 13 Sep 2022 21:58:53 +0000 (14:58 -0700)]
Revert "constexpr isn't right here."

This didn't help either.

This reverts commit 8433b210839ed655852428ba8b34bb67b191957a.

2 years agoRevert "Trying to understand the TestHelp.py failure from 6c089b2."
Jim Ingham [Tue, 13 Sep 2022 21:58:27 +0000 (14:58 -0700)]
Revert "Trying to understand the TestHelp.py failure from 6c089b2."

It didn't help.

This reverts commit 81f8788528886ee611041e1f4ee54eea8bbfa277.

2 years agoRevert "Make sure libLLVM users link with libatomic if needed"
Aaron Puchert [Tue, 13 Sep 2022 21:56:08 +0000 (23:56 +0200)]
Revert "Make sure libLLVM users link with libatomic if needed"

Adds too many dependencies: many libraries in LLVM_SYSTEM_LIBS are
arguably not required for users of libLLVM.

This reverts commit 44ffc13f2eb6188a86ae88ea1e942e9ac354db9b.

2 years agoAdd virtual-base-class example to AMDGPUDwarfExtensionAllowLocationDescriptionOnTheDw...
Scott Linder [Tue, 13 Sep 2022 21:49:20 +0000 (21:49 +0000)]
Add virtual-base-class example to AMDGPUDwarfExtensionAllowLocationDescriptionOnTheDwarfExpressionStack.md

Differential Revision: https://reviews.llvm.org/D133791

2 years ago[ELF][Distributed ThinLTO] Do not generate empty index when bitcode object is linked
Wei Wang [Tue, 13 Sep 2022 00:35:51 +0000 (17:35 -0700)]
[ELF][Distributed ThinLTO] Do not generate empty index when bitcode object is linked

When the same bitcode object file is given multiple times from the Command-line
as lazy object file, empty index is generated which overwrites the one from thinlink.
This could cause undefined symbols during final link.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D133740

2 years ago[BOLT] Stop using std::iterator (NFC)
Kazu Hirata [Tue, 13 Sep 2022 21:14:23 +0000 (14:14 -0700)]
[BOLT] Stop using std::iterator (NFC)

Without this patch, I get warnings like:

  bolt/include/bolt/Core/BinaryContext.h:108:19: error:
  'iterator<std::bidirectional_iterator_tag,
  llvm::bolt::BinarySection>' is deprecated
  [-Werror,-Wdeprecated-declarations]

This patch fixes those warnings by defining iterator_category,
value_type, etc.

This patch intentionally leaves duplicate types like FilterIterator::T
and FilterIterator::PointerT intact to avoid mixing the fix and the
cleanup.

Differential Revision: https://reviews.llvm.org/D133650

2 years agoTrying to understand the TestHelp.py failure from 6c089b2.
Jim Ingham [Tue, 13 Sep 2022 21:06:35 +0000 (14:06 -0700)]
Trying to understand the TestHelp.py failure from 6c089b2.

Sadly, the test passes on macOS, but fails on Ubuntu & Win.  The
extra option printing is supposed to be suppressed by the return
from CommandObjectAlias::IsDashDashCommand.  That was changed, but just
by replacing an inline string compare with a const string from
CommandInterpreter.  Putting the old version back temporarily to
see if that is really the problem.

2 years ago[HLSL] Adding a test change I forgot to add
Chris Bieneman [Wed, 14 Sep 2022 01:51:44 +0000 (20:51 -0500)]
[HLSL] Adding a test change I forgot to add

This test just verifies that even at -O0 the buffer subscript operators
are inlined. The original change was
fb5baffc28c8beaf790a2fb1c8a863d29020bfbe.

2 years ago[DirectX backend] Remove Attribute not for DXIL on CallInst
Xiang Li [Sun, 4 Sep 2022 23:07:25 +0000 (16:07 -0700)]
[DirectX backend] Remove Attribute not for DXIL on CallInst

Remove Attribute on CallInst which is not for DXIL when prepare for DXIL.

Reviewed By: beanz

Differential Revision: https://reviews.llvm.org/D133279

2 years ago[HLSL] Mark buffer subscript operators as AlwaysInline
Chris Bieneman [Wed, 14 Sep 2022 01:29:17 +0000 (20:29 -0500)]
[HLSL] Mark buffer subscript operators as AlwaysInline

HLSL requires aggressive inlineing for resource accesses. This just
enforces that we get resource handle accesses inlined early.

2 years ago[gn build] port fc04749957f1
Zequan Wu [Tue, 13 Sep 2022 18:19:08 +0000 (11:19 -0700)]
[gn build] port fc04749957f1

Reviewed By: thakis

Differential Revision: https://reviews.llvm.org/D133794

2 years ago[mlir][sparse] Add sparse_tensor.select operation
Jim Kitchen [Tue, 13 Sep 2022 20:22:53 +0000 (15:22 -0500)]
[mlir][sparse] Add sparse_tensor.select operation

The new select operation allows filtering of sparse tensors
by conditionally keeping or removing each element. This
can be used to remove negative values or select the upper
triangle of a matrix.

The select op has a single region which operates on a single
value and must return a boolean True to keep or False to drop.

Reviewed by: aartbik

Differential Revision: https://reviews.llvm.org/D133569

2 years ago[Clang] [Sema] Ignore invalid multiversion function redeclarations
Evgeny Shulgin [Sat, 10 Sep 2022 13:36:06 +0000 (13:36 +0000)]
[Clang] [Sema] Ignore invalid multiversion function redeclarations

If a redeclaration of a multiversion function is invalid,
it may be in a broken condition (for example, missing an important
attribute). We shouldn't analyze invalid redeclarations.

Fixes https://github.com/llvm/llvm-project/issues/57343

Reviewed By: tahonermann

Differential Revision: https://reviews.llvm.org/D133641

2 years ago[HLSL] Call global destructors from entries
Chris Bieneman [Tue, 13 Sep 2022 18:07:46 +0000 (13:07 -0500)]
[HLSL] Call global destructors from entries

HLSL doesn't have a C++ runtime that supports `atexit` registration. To
enable global destructors we instead rely on the `llvm.global_dtor`
mechanism.

This change disables `atexit` generation for HLSL and updates the HLSL
code generation to call global destructors on the exit from entry
functions.

Depends on D132977.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D133518

2 years agoconstexpr isn't right here.
Jim Ingham [Tue, 13 Sep 2022 20:01:05 +0000 (13:01 -0700)]
constexpr isn't right here.

2 years ago[Formatters][NFCI] Replace 'is_regex' arguments with an enum.
Jorge Gorbe Moya [Fri, 2 Sep 2022 23:13:13 +0000 (16:13 -0700)]
[Formatters][NFCI] Replace 'is_regex' arguments with an enum.

Modify `SBTypeNameSpecifier` and `lldb_private::TypeMatcher` so they
have an enum value for the type of matching to perform instead of an
`m_is_regex` boolean value.

This change paves the way for introducing formatter matching based on
the result of a python callback in addition to the existing name-based
matching. See the RFC thread at
https://discourse.llvm.org/t/rfc-python-callback-for-data-formatters-type-matching/64204
for more details.

Differential Revision: https://reviews.llvm.org/D133240

2 years ago[AMDGPU] Don't shrink VOP3 instructions pre-RA on GFX10+
Jay Foad [Tue, 13 Sep 2022 11:59:33 +0000 (12:59 +0100)]
[AMDGPU] Don't shrink VOP3 instructions pre-RA on GFX10+

In GFX10, there is no advantage to shrinking these instructions pre-RA,
so this just saves a bit of work.

In GFX11 there is an advantage to *not* shrinking them pre-RA, because
the register classes for 16-bit operands are less restrictive in the
VOP3 form than in the shrunk form. This patch is a prerequisite for
actually setting up those register classes correctly for 16-bit vs
non-16-bit operands.

Differential Revision: https://reviews.llvm.org/D133769

2 years ago[SelectOpti] Fix lifetime intrinsic bug
Sotiris Apostolakis [Tue, 13 Sep 2022 18:48:59 +0000 (18:48 +0000)]
[SelectOpti] Fix lifetime intrinsic bug

When a select is converted to a branch and load instructions are sinked to the true/false blocks,
lifetime intrinsics (if present) could be made unsound if not moved.

This conservatively moves all lifetime intrinsics in a transformed BB to the end block to ensure
preserved lifetime semantics.

Reviewed By: davidxl

Differential Revision: https://reviews.llvm.org/D133777

2 years ago[DX] DXContainer does not support COMDAT
Chris Bieneman [Thu, 8 Sep 2022 20:30:18 +0000 (15:30 -0500)]
[DX] DXContainer does not support COMDAT

The DXContainer is pretty primitive, but doesn't support COMDAT. We need
to set that in the Triple so that Clang won't try to emit COMDATs.

2 years ago[NFC][ADT] Fix assert message
theidexisted [Tue, 13 Sep 2022 18:31:50 +0000 (18:31 +0000)]
[NFC][ADT] Fix assert message

Reviewed By: gchatelet

Differential Revision: https://reviews.llvm.org/D129632

2 years ago[RISCV] Split vmerge peephole tests so they can be auto-gened
Philip Reames [Tue, 13 Sep 2022 18:39:36 +0000 (11:39 -0700)]
[RISCV] Split vmerge peephole tests so they can be auto-gened

Per original review, only one test needed the MIR output checks.  Copy that to it's own file, and use auto-gen for all three files.

2 years ago[mlir] Add bytecode encodings for the builtin ElementsAttr attributes
River Riddle [Tue, 13 Sep 2022 06:22:26 +0000 (23:22 -0700)]
[mlir] Add bytecode encodings for the builtin ElementsAttr attributes

This adds bytecode support for DenseArrayAttr, DenseIntOrFpElementsAttr,
DenseStringElementsAttr, and SparseElementsAttr.

Differential Revision: https://reviews.llvm.org/D133744

2 years ago[mlir] Fix DenseElementsAttr treatment of bool splat of "true"
River Riddle [Tue, 13 Sep 2022 01:42:08 +0000 (18:42 -0700)]
[mlir] Fix DenseElementsAttr treatment of bool splat of "true"

Boolean splats currently can't roundtrip via the "raw" DenseElementsAttr
API. This is because internally we treat true splats in some cases as "1"(one bit set)
and in other cases as "0xFF"(all bits set). This commit cleans up this handling to
consistently use 0xFF (all bits set) as the value for a splat of true.

Differential Revision: https://reviews.llvm.org/D133743

2 years ago[mlir] Add fallback support for parsing/printing unknown external resources
River Riddle [Tue, 13 Sep 2022 08:07:29 +0000 (01:07 -0700)]
[mlir] Add fallback support for parsing/printing unknown external resources

This is necessary/useful for building generic tooling that can roundtrip external
resources without needing to explicitly handle them. For example, this allows
for viewing the resources encoded within a bytecode file without having to
explicitly know how to process them (e.g. making it easier to interact with a
reproducer encoded in bytecode).

Differential Revision: https://reviews.llvm.org/D133460

2 years ago[mlir:Bytecode] Add support for encoding resources
River Riddle [Wed, 7 Sep 2022 03:47:57 +0000 (20:47 -0700)]
[mlir:Bytecode] Add support for encoding resources

Resources are encoded in two separate sections similarly to
attributes/types, one for the actual data and one for the data
offsets. Unlike other sections, the resource sections are optional
given that in many cases they won't be present. For testing,
bytecode serialization is added for DenseResourceElementsAttr.

Differential Revision: https://reviews.llvm.org/D132729

2 years ago[llvm-remarkutil] NFC: Combine parsing + serializing for bitstream2yaml
Jessica Paquette [Tue, 13 Sep 2022 18:02:52 +0000 (11:02 -0700)]
[llvm-remarkutil] NFC: Combine parsing + serializing for bitstream2yaml

We don't need to populate a string table, so we don't need to pre-parse the
remarks.

Split the bitstream2yaml and yaml2bitstream cases up so that we can avoid the
extra remark traversal in the bitstream2yaml case.

This kills the TODO.

2 years ago[libc][Obvious] Use unique test file names in dup, dup2 and dup3 tests.
Siva Chandra Reddy [Tue, 13 Sep 2022 18:16:04 +0000 (18:16 +0000)]
[libc][Obvious] Use unique test file names in dup, dup2 and dup3 tests.

2 years ago[Docs] Added LLVM SPIR-V Backend Working Group
Michal Paszkowski [Tue, 13 Sep 2022 18:17:37 +0000 (20:17 +0200)]
[Docs] Added LLVM SPIR-V Backend Working Group

2 years ago[gn build] port c8daf4a707ad (check-lldb)
Zequan Wu [Tue, 13 Sep 2022 18:14:36 +0000 (11:14 -0700)]
[gn build] port c8daf4a707ad (check-lldb)

Reviewed By: thakis

Differential Revision: https://reviews.llvm.org/D133718

2 years ago[Bazel] Bump bazel version to 5.0.
Christian Sigg [Tue, 13 Sep 2022 07:03:15 +0000 (09:03 +0200)]
[Bazel] Bump bazel version to 5.0.

See https://discourse.llvm.org/t/use-bazelisk-for-bazel-buildbots/65188.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D133750

2 years ago[RISCV] Teach lowerVECTOR_SHUFFLE to recognize some shuffles as vnsrl.
Craig Topper [Tue, 13 Sep 2022 17:58:48 +0000 (10:58 -0700)]
[RISCV] Teach lowerVECTOR_SHUFFLE to recognize some shuffles as vnsrl.

Unary shuffles such as <0,2,4,6,8,10,12,14> or <1,3,5,7,9,11,13,15>
where half the elements are returned, can be lowered using vnsrl.

SelectionDAGBuilder lowers such shuffles as a build_vector of
extract_elements since the mask has less elements than the source.
To fix this, I've enable the extractSubvectorIsCheapHook to allow
DAGCombine to rebuild the shuffle using 2 extract_subvectors preceding
the shufffle.

I've gone very conservative on extractSubvectorIsCheapHook to minimize
test impact and match what we have test coverage for. This can be
improved in the future.

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D133736

2 years ago[libc] Add POSIX functions dup, dup2, and GNU extension function dup3.
Siva Chandra Reddy [Tue, 13 Sep 2022 06:01:54 +0000 (06:01 +0000)]
[libc] Add POSIX functions dup, dup2, and GNU extension function dup3.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D133748

2 years agoBe more careful to maintain quoting information when parsing commands.
Jim Ingham [Wed, 31 Aug 2022 17:13:05 +0000 (10:13 -0700)]
Be more careful to maintain quoting information when parsing commands.

This is particularly a problem for alias construction, where you might
want to have a backtick surrounded option in the alias.  Before this
patch:

command alias expression -Z \`argc\` -- argv

for instance would be rendered as:

expression -Z argc -- argv

and would fail to work.

Differential Revision: https://reviews.llvm.org/D133045

2 years agoAdd pointer-to-member example to AMDGPUDwarfExtensionAllowLocationDescriptionOnTheDwa...
Scott Linder [Mon, 12 Sep 2022 22:53:52 +0000 (22:53 +0000)]
Add pointer-to-member example to AMDGPUDwarfExtensionAllowLocationDescriptionOnTheDwarfExpressionStack.md

Differential Revision: https://reviews.llvm.org/D133735

2 years agoFix typo in AMDGPUDwarfExtensionAllowLocationDescriptionOnTheDwarfExpressionStack.md
Scott Linder [Mon, 12 Sep 2022 22:53:19 +0000 (22:53 +0000)]
Fix typo in AMDGPUDwarfExtensionAllowLocationDescriptionOnTheDwarfExpressionStack.md

Differential Revision: https://reviews.llvm.org/D133734

2 years agodos2unix AMDGPUDwarfExtensionAllowLocationDescriptionOnTheDwarfExpressionStack.md
Scott Linder [Mon, 12 Sep 2022 22:52:51 +0000 (22:52 +0000)]
dos2unix AMDGPUDwarfExtensionAllowLocationDescriptionOnTheDwarfExpressionStack.md

Differential Revision: https://reviews.llvm.org/D133733

2 years ago[RISCV] Implement isMaskAndCmp0FoldingBeneficial hook
Alex Bradbury [Tue, 13 Sep 2022 15:58:07 +0000 (16:58 +0100)]
[RISCV] Implement isMaskAndCmp0FoldingBeneficial hook

This hook is currently only used by CodeGenPrepare, which will sink *and
duplicate* an 'and' into a block that has an 'icmp 0' user of it if the
hook returns true.

This hook is less useful for RISC-V than for targets like AArch64 that
have a TBZ (test bit and branch if zero instruction), but may still be
profitable if Zbs is available and a BEXTI can be selected.

Conservatively, we return false even if Zbs is enabled for any masks
that fit in the ANDI immediate because it's possible the only use is a
branch on the result, and ANDI+BNEZ => BEXTI+BNEZ isn't a profitable
transformation.

Differential Revision: https://reviews.llvm.org/D131492

2 years ago[gn build] port a3172df59c32 (check-lldb)
Zequan Wu [Fri, 9 Sep 2022 19:39:29 +0000 (12:39 -0700)]
[gn build] port a3172df59c32 (check-lldb)

https://reviews.llvm.org/rGa3172df59c32aac48c113eb7d6a1324aaa95c474 breaks
check-lldb gn build.

Reviewed By: thakis

Differential Revision: https://reviews.llvm.org/D133604

2 years ago[lldb] Fixed a number of typos
Gabriel Ravier [Tue, 13 Sep 2022 16:32:02 +0000 (09:32 -0700)]
[lldb] Fixed a number of typos

I went over the output of the following mess of a command:

  (ulimit -m 2000000; ulimit -v 2000000; git ls-files -z | parallel
  --xargs -0 cat | aspell list --mode=none --ignore-case | grep -E
  '^[A-Za-z][a-z]*$' | sort | uniq -c | sort -n | grep -vE '.{25}' |
  aspell pipe -W3 | grep : | cut -d' ' -f2 | less)

and proceeded to spend a few days looking at it to find probable typos
and fixed a few hundred of them in all of the llvm project (note, the
ones I found are not anywhere near all of them, but it seems like a
good start).

Differential revision: https://reviews.llvm.org/D131122

2 years ago[MLIR] Remove unused lit test replacements.
Christian Sigg [Wed, 7 Sep 2022 09:31:31 +0000 (11:31 +0200)]
[MLIR] Remove unused lit test replacements.

The following replacements have been changed to `%mlir_lib_dir`:

- `%linalg_test_lib_dir`
- `%cuda_wrapper_library_dir`
- `%spirv_wrapper_library_dir`
- `%vulkan_wrapper_library_dir`
- `%mlir_runner_utils_dir`
- `%mlir_integration_test_dir`

If there are no requests to delay submission, I plan to submit this on 9/13/2002 (Tuesday).

See also PSA: https://discourse.llvm.org/t/psa-removing-mlir-lit-test-replacements/65124

Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D133409

2 years ago[llvm-remarkutil] Make tryParseRemarksFromInputFile static
Jessica Paquette [Tue, 13 Sep 2022 17:19:17 +0000 (10:19 -0700)]
[llvm-remarkutil] Make tryParseRemarksFromInputFile static

All the functions in this file should be static to avoid ODR violations.

2 years ago[lld-macho] Sort data-in-code entries
Daniel Bertalan [Fri, 9 Sep 2022 15:18:10 +0000 (17:18 +0200)]
[lld-macho] Sort data-in-code entries

Previously, we would add entries to DataInCodeSection in the order they
appeared in input files. Because of this, entries would not be sorted if
sections were reordered due to e.g. `-order_file` or call graph profile
sorting. ld64 always keeps data-in-code information sorted.

This commit also fixes an incorrect assertion. The original assertion
from D103006 used to check that data-in-code entries are sorted in the
input objects -- likely because we use binary search on that data. In
D115556, the assertion was moved into `collectDataInCodeEntries`, but
the checked variable's name was not changed, so it ended up checking the
final contents of the DataInCodeSection.

We no longer crash when building LLVM with PGO using an asserts build of
LLD as the linker.

Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=1265937

Numbers for linking the Chromium Framework reproducer from #48001, which
has 6829 data-in-code entries:

  x before
  + after
      N           Min           Max        Median           Avg        Stddev
  x  20     2.1076453     2.3059683     2.1132485     2.1350302   0.049905767
  +  20     2.1069031     2.3915262       2.14465     2.1728429   0.084065898
  No difference proven at 95.0% confidence

Differential Revision: https://reviews.llvm.org/D133581

2 years ago[mlir][arith] Canonicalization patterns for subi.
Slava Zakharin [Fri, 9 Sep 2022 20:33:23 +0000 (13:33 -0700)]
[mlir][arith] Canonicalization patterns for subi.

subi(addi(a, b), b) -> a
subi(addi(a, b), a) -> b
subi(subi(a, b), a) -> subi(0, b)

Differential Revision: https://reviews.llvm.org/D133615

2 years agolldb: Add support for R_386_32 relocations to ObjectFileELF
David M. Lary [Tue, 13 Sep 2022 15:26:32 +0000 (17:26 +0200)]
lldb: Add support for R_386_32 relocations to ObjectFileELF

I encountered an issue where `p &variable` was finding an incorrect address for
32-bit PIC ELF files loaded into a running process.  The problem was that the
R_386_32 ELF relocations were not being applied to the DWARF section, so all
variables in that file were reporting as being at the start of their respective
section.  There is an assert that catches this on debug builds, but silently
ignores the issue on non-debug builds.

In this changeset, I added handling for the R_386_32 relocation type to
ObjectFileELF, and a supporting function to ELFRelocation to differentiate
between DT_REL & DT_RELA in ObjectFileELF::ApplyRelocations().

Demonstration of issue:
```
[dmlary@host work]$ cat rel.c
volatile char padding[32] = "make sure var isnt at .data+0";
volatile char var[] = "test";
[dmlary@host work]$ gcc -c rel.c -FPIC -fpic -g -m32

[dmlary@host work]$ lldb ./exec
(lldb) target create "./exec"
Current executable set to '/home/dmlary/src/work/exec' (i386).
(lldb) process launch --stop-at-entry
Process 21278 stopped
* thread #1, name = 'exec', stop reason = signal SIGSTOP
    frame #0: 0xf7fdb150 ld-2.17.so`_start
ld-2.17.so`_start:
->  0xf7fdb150 <+0>: movl   %esp, %eax
    0xf7fdb152 <+2>: calll  0xf7fdb990                ; _dl_start

ld-2.17.so`_dl_start_user:
    0xf7fdb157 <+0>: movl   %eax, %edi
    0xf7fdb159 <+2>: calll  0xf7fdb140
Process 21278 launched: '/home/dmlary/src/work/exec' (i386)

(lldb) image add ./rel.o
(lldb) image load --file rel.o .text 0x40000000 .data 0x50000000
section '.text' loaded at 0x40000000
section '.data' loaded at 0x50000000

(lldb) image dump symtab rel.o
Symtab, file = rel.o, num_symbols = 13:
               Debug symbol
               |Synthetic symbol
               ||Externally Visible
               |||
Index   UserID DSX Type            File Address/Value Load Address       Size               Flags      Name
------- ------ --- --------------- ------------------ ------------------ ------------------ ---------- ----------------------------------
[    0]      1     SourceFile      0x0000000000000000                    0x0000000000000000 0x00000004 rel.c
[    1]      2     Invalid         0x0000000000000000                    0x0000000000000020 0x00000003
[    2]      3     Invalid         0x0000000000000000 0x50000000 0x0000000000000020 0x00000003
[    3]      4     Invalid         0x0000000000000025                    0x0000000000000000 0x00000003
[    4]      5     Invalid         0x0000000000000000                    0x0000000000000020 0x00000003
[    5]      6     Invalid         0x0000000000000000                    0x0000000000000020 0x00000003
[    6]      7     Invalid         0x0000000000000000                    0x0000000000000020 0x00000003
[    7]      8     Invalid         0x0000000000000000                    0x0000000000000020 0x00000003
[    8]      9     Invalid         0x0000000000000000                    0x0000000000000020 0x00000003
[    9]     10     Invalid         0x0000000000000000                    0x0000000000000020 0x00000003
[   10]     11     Invalid         0x0000000000000000                    0x0000000000000020 0x00000003
[   11]     12   X Data            0x0000000000000000 0x50000000 0x0000000000000020 0x00000011 padding
[   12]     13   X Data            0x0000000000000020 0x50000020 0x0000000000000005 0x00000011 var

(lldb) p &var
(volatile char (*)[5]) $1 = 0x50000000
```

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D132954

2 years ago[Vectorize] Fix a warning
Kazu Hirata [Tue, 13 Sep 2022 16:30:06 +0000 (09:30 -0700)]
[Vectorize] Fix a warning

This patch fixes:

  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp:5879:5: error:
  expression result unused [-Werror,-Wunused-value]

2 years ago[SimplifyCFG] Don't hoist allocas
Arthur Eubanks [Mon, 12 Sep 2022 22:05:00 +0000 (15:05 -0700)]
[SimplifyCFG] Don't hoist allocas

D129370 started hoisting allocas across stacksave/stackrestore
boundaries which is wrong.

Reviewed By: chill, rnk

Differential Revision: https://reviews.llvm.org/D133730

2 years ago[SLP] Unify main/alternate selection for CmpInst instructions
Valery N Dmitriev [Tue, 6 Sep 2022 21:42:28 +0000 (14:42 -0700)]
[SLP] Unify main/alternate selection for CmpInst instructions

Make main/alternate operation selection logic for CmpInst
consistent across SLP vectorizer.

Differential Revision: https://reviews.llvm.org/D133430

2 years ago[LegalizeTypes][NVPTX] Remove extra compare from fallback code for ISD::ADD in Expand...
Craig Topper [Tue, 13 Sep 2022 16:07:56 +0000 (09:07 -0700)]
[LegalizeTypes][NVPTX] Remove extra compare from fallback code for ISD::ADD in ExpandIntRes_ADDSUB.

This is the ultimate fallback code if UADDO isn't supported.

If the target uses 0/1 we used one compare, but if the target doesn't
use 0/1 we emitted two compares. Regardless of boolean constants we
should only need to check that the Result is less than one of the
original operands. So we only need one compare.

Reviewed By: spatel

Differential Revision: https://reviews.llvm.org/D133708

2 years ago[ValueTypes] Define MVTs for v256i2/v128i4.
Hendrik Greving [Fri, 9 Sep 2022 17:32:52 +0000 (10:32 -0700)]
[ValueTypes] Define MVTs for v256i2/v128i4.

Adds MVT::v256i2, MVT::v128i4.

Differential Revision: https://reviews.llvm.org/D133603

2 years ago[mlir] optional verbose debug messages for transform application
Alex Zinenko [Tue, 13 Sep 2022 14:24:51 +0000 (16:24 +0200)]
[mlir] optional verbose debug messages for transform application

Introduce the additional "transform-dialect-print-top-level-after-all" debug
category that allows the user to print the paylaod IR after each transformation
performed by the transform dialect. This is useful for understanding and
debugging the effects of individual transformations in complex transformations
scripts, including in downstreams, without having to modify the transformation
script itself.

Reviewed By: mravishankar

Differential Revision: https://reviews.llvm.org/D133775

2 years ago[RISCV] Return true in hasBitTest when Zbs is enabled and update BEXTI pattern for...
Alex Bradbury [Tue, 13 Sep 2022 15:50:08 +0000 (16:50 +0100)]
[RISCV] Return true in hasBitTest when Zbs is enabled and update BEXTI pattern for resulting canonicalisation

As the Zbs extension includes bext[i] for bit extract, we can
unconditionally return true from this hook. This hook causes the DAG
combiner to perform the following canonicalisation:

  and (not (srl X, C)), 1 --> (and X, 1<<C) == 0
  and (srl (not X), C)), 1 --> (and X, 1<<C) == 0

As simply changing the hook causes a codegen regression, this patch also
modifies a BEXTI pattern to match this canonicalised form.

As BSETINVMask is now used for BEXT as well as BSET and BINV, it has
been renamed to the more generic SingleBitSetMask.

There is one codegen change in bittest.ll for bittest_31_i64 (NOT+BEXTI
rather than NOT+SRLIW). This is neutral in terms of code quality.

Differential Revision: https://reviews.llvm.org/D131482

2 years ago[RISCV] Fix a bug in i32 FP_TO_UINT_SAT lowering on RV64.
Craig Topper [Tue, 13 Sep 2022 15:41:32 +0000 (08:41 -0700)]
[RISCV] Fix a bug in i32 FP_TO_UINT_SAT lowering on RV64.

We use the saturating behavior of fcvt.wu.h/s/d but forgot to
take into account that fcvt.wu will sign extend the saturated
result. According to computeKnownBits a promoted FP_TO_UINT_SAT
is expected to zero extend the saturated value.

In many case the upper bits aren't be demanded so this wouldn't
be an issue. But if we computeKnownBits caused an AND to be removed
it would be a bug.

This patch inserts an AND during to zero the upper bits.

Unfortunately, this pessimizes code if we aren't able to tell if
the upper bits are demanded. To fix that we could custom type
promote the FP_TO_UINT_SAT with SEXT_INREG after it, but I'll
leave that for future work.

I haven't found a failure from this, I was revisiting the code to
add vector support and spotted it.

Differential Revision: https://reviews.llvm.org/D133746

2 years ago[mlir][Vector] Support broadcast vector type in distribution of vector.warp_execute_...
Nicolas Vasilache [Tue, 13 Sep 2022 07:51:56 +0000 (00:51 -0700)]
[mlir][Vector] Support broadcast vector type in  distribution of vector.warp_execute_on_lane_0.

This revision significantly improves and tests the broadcast behavior of vector.warp_execute_on_lane_0.

Previously, the implementation of the broadcast behavior of vector.warp_execute_on_lane_0
assumed that the broadcasted value was always of scalar type.

This is not necessarily the case.

Differential Revision: https://reviews.llvm.org/D133767

2 years agoCorrect the __has_c_attribute value for fallthrough
Aaron Ballman [Tue, 13 Sep 2022 15:06:01 +0000 (11:06 -0400)]
Correct the __has_c_attribute value for fallthrough

The original proposal was seen in Apr 2019 and we accidentally used
that date (201904L) as the feature testing value. However, WG14 N2408
was adopted at the Oct 2019 meeting and so that's the correct date for
the feature testing macro. The committee draft for C2x shows 201910L
for this value, so this changes brings us in line with the standard.

2 years ago[mlir] improve the error message in expensive transform checks
Alex Zinenko [Tue, 13 Sep 2022 13:57:14 +0000 (15:57 +0200)]
[mlir] improve the error message in expensive transform checks

Include the transform op being applied when reporting it using an invalidated
handle. This was missing previously and made it harder for the user to
understand where the handle is being used, especially if the transform script
included some sort of iteration.

Reviewed By: guraypp

Differential Revision: https://reviews.llvm.org/D133774

2 years ago[gn build] port 30578c08568bc
Nico Weber [Tue, 13 Sep 2022 14:48:33 +0000 (10:48 -0400)]
[gn build] port 30578c08568bc

2 years ago[AArch64] Sink splat(s/zext(..)) to uses
David Green [Tue, 13 Sep 2022 14:47:41 +0000 (15:47 +0100)]
[AArch64] Sink splat(s/zext(..)) to uses

If the Shuffle is a splat and the operand is a zext/sext, sinking the
operand and the s/zext can help create indexed s/umull. This is
especially useful to prevent i64 mul being scalarized.

Differential Revision: https://reviews.llvm.org/D133355

2 years agoLiveRegUnits: Break register loop when a clobber is encountered
Matt Arsenault [Tue, 13 Sep 2022 13:57:22 +0000 (09:57 -0400)]
LiveRegUnits: Break register loop when a clobber is encountered

2 years ago[MLIR] Only substitute `mlir-spirv-cpu-runner` tool if enabled
Christian Sigg [Tue, 13 Sep 2022 07:32:54 +0000 (09:32 +0200)]
[MLIR] Only substitute `mlir-spirv-cpu-runner` tool if enabled

This tool is only used if `MLIR_ENABLE_SPIRV_CPU_RUNNER` was specified and should only be substituted in that case. Alternatively, we could make the substitution optional.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D133752

2 years agoUpdate the C Status page for the Clang 15 release
Aaron Ballman [Tue, 13 Sep 2022 13:36:54 +0000 (09:36 -0400)]
Update the C Status page for the Clang 15 release

Now that Clang 15 is out, we can swap all the unreleased entries over.

2 years agoCorrect the __has_c_attribute value for maybe_unused
Aaron Ballman [Tue, 13 Sep 2022 13:27:13 +0000 (09:27 -0400)]
Correct the __has_c_attribute value for maybe_unused

The original proposal was adopted in Apr 2019, but was subsequently
updated by WG14 N2662 in June 2021. We already supported the attribute
on a label and it behaved as expected, but we had not bumped the
feature test value.

2 years agoRevert "[llvm-dwp] Report the filename if it cannot be found"
Nico Weber [Tue, 13 Sep 2022 13:07:16 +0000 (09:07 -0400)]
Revert "[llvm-dwp] Report the filename if it cannot be found"

This reverts commit 35028d417bb32bc05294e77c9ddcf50f24f277eb.
Breaks tests on Windows, see https://reviews.llvm.org/D133549#3785952

2 years ago[LoopVectorize][X86] Add uniform shift costs checks for VF=1/2/4
Simon Pilgrim [Tue, 13 Sep 2022 12:46:44 +0000 (13:46 +0100)]
[LoopVectorize][X86] Add uniform shift costs checks for VF=1/2/4

2 years agoDeadMachineInstructionElim: Don't repeat per-function init
Matt Arsenault [Tue, 13 Sep 2022 00:58:00 +0000 (20:58 -0400)]
DeadMachineInstructionElim: Don't repeat per-function init

This was happening for every iteration but only needs to be done once.

2 years agoLiveRegUnits: Cleanup isReg checks
Matt Arsenault [Mon, 12 Sep 2022 22:54:41 +0000 (18:54 -0400)]
LiveRegUnits: Cleanup isReg checks

This is the common case and should be checked first. Provides a very
marginal compile time improvement on the example I'm looking at.

2 years agoFix the LLVM sphinx build
Aaron Ballman [Tue, 13 Sep 2022 12:17:55 +0000 (08:17 -0400)]
Fix the LLVM sphinx build

This addresses the failures found in:
https://lab.llvm.org/buildbot/#/builders/30/builds/25899

2 years agoCorrect the __has_c_attribute value for nodiscard
Aaron Ballman [Tue, 13 Sep 2022 12:09:55 +0000 (08:09 -0400)]
Correct the __has_c_attribute value for nodiscard

The original proposal was adopted in Apr 2019 and so the previous value
was 201904L. However, a subsequent proposal (N2448) was adopted to add
an optional message argument to the attribute. We already support that
functionality, but had not bumped the feature test value.

2 years ago[OpenMP] Extend lit test for parallel for simd construct
Animesh Kumar [Thu, 25 Aug 2022 10:01:05 +0000 (15:31 +0530)]
[OpenMP] Extend lit test for parallel for simd construct

This construct is being tested for atomic operation based upon
the test 5.0/parallel_for_simd/test_parallel_for_simd_atomic.c
from the SOLLVE repo: https://github.com/SOLLVE/sollve_vv

Differential Revision: https://reviews.llvm.org/D132643

2 years ago[mlir] Decrease stack allocations in Presburger's Matrix
Tres Popp [Tue, 13 Sep 2022 08:21:55 +0000 (10:21 +0200)]
[mlir] Decrease stack allocations in Presburger's Matrix

The class set a SmallVector stack allocation size to 64 elements which
is uncommonly large. These structures are then used extensively and
copied often in functions which led to stack frame sizes considered
excessively large for some use cases.

Differential Revision: https://reviews.llvm.org/D133761

2 years ago[InstCombine] Test for matrix multiplication negation optimisation.
Zain Jaffal [Tue, 13 Sep 2022 10:35:17 +0000 (11:35 +0100)]
[InstCombine] Test for matrix multiplication negation optimisation.

If one of the operands is negated in a multiplication we can optimise the operation by moving the negation to the smallest operand or to the result

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D133287

2 years ago[X86] Add GFNI test coverage for bitreverse codegen
Simon Pilgrim [Tue, 13 Sep 2022 10:22:54 +0000 (11:22 +0100)]
[X86] Add GFNI test coverage for bitreverse codegen

We should be able to efficiently use the vector version for scalar bitreverse, like we do for XOP.

2 years ago[CostModel][X86] Add CostKinds test coverage for bitreverse intrinsics
Simon Pilgrim [Mon, 12 Sep 2022 15:42:07 +0000 (16:42 +0100)]
[CostModel][X86] Add CostKinds test coverage for bitreverse intrinsics

2 years agoRevert "[clang] template / auto deduction deduces common sugar"
Alexander Kornienko [Tue, 13 Sep 2022 10:09:40 +0000 (12:09 +0200)]
Revert "[clang] template / auto deduction deduces common sugar"

This reverts commit d200db38637884fd0b421802c6094b2a03ceb29e, which causes a
clang crash. See https://reviews.llvm.org/D111283#3785755

Test case for convenience:
```
template <typename T>
using P = int T::*;

template <typename T, typename... A>
void j(P<T>, T, A...);

template <typename T>
void j(P<T>, T);

struct S {
  int b;
};
void g(P<S> k, S s) { j(k, s); }
```

2 years ago[llvm][AArch64] Explain why certain registers are reserved on Arm64EC
David Spickett [Mon, 12 Sep 2022 13:10:02 +0000 (13:10 +0000)]
[llvm][AArch64] Explain why certain registers are reserved on Arm64EC

This extends 4658366d95d5e398baad956225cc4ba339d5b037 to add a note
explaining why the register is reserved.

note: x13 is clobbered by asynchronous signals when using Arm64EC.

I've added testing for w/x registers and v/q/s/d and h floating point
registers.

llvm will accept, but silently do nothing with, b registers. So they
are not tested here (clang rejects them so at least for C you're safe anyway).

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D133701

2 years ago[AMDGPU] Add GFX11 globalisel test coverage for fptosi/fptoui
Jay Foad [Tue, 13 Sep 2022 09:50:22 +0000 (10:50 +0100)]
[AMDGPU] Add GFX11 globalisel test coverage for fptosi/fptoui

2 years ago[NFC][ScheduleDAGInstrs] Use structure bindings and emplace_back
Pavel Samolysov [Tue, 13 Sep 2022 08:04:30 +0000 (11:04 +0300)]
[NFC][ScheduleDAGInstrs] Use structure bindings and emplace_back

Some uses of std::make_pair and the std::pair's first/second members
in the ScheduleDAGInstrs.[cpp|h] files were replaced with using of the
vector's emplace_back along with structure bindings from C++17.

2 years ago[AMDGPU][MC][GFX11] Add a helper function for identification of VOPD instructions
Dmitry Preobrazhensky [Tue, 13 Sep 2022 09:41:39 +0000 (12:41 +0300)]
[AMDGPU][MC][GFX11] Add a helper function for identification of VOPD instructions

Differential Revision: https://reviews.llvm.org/D133608

2 years ago[AMDGPU][MC] Add detection of mandatory literals in parser
Dmitry Preobrazhensky [Tue, 13 Sep 2022 09:37:30 +0000 (12:37 +0300)]
[AMDGPU][MC] Add detection of mandatory literals in parser

Differential Revision: https://reviews.llvm.org/D133606

2 years ago[OpenCL] Guard depth image builtins
Sven van Haastregt [Tue, 13 Sep 2022 09:10:48 +0000 (10:10 +0100)]
[OpenCL] Guard depth image builtins

Ensure any uses of `image2d_depth_t` and `image2d_array_depth_t` are
guarded behind the `cl_khr_depth_images` extension in
`OpenCLBuiltins.td`.

Fix a few missing guards in `opencl-c.h`.

2 years ago[RISCV][test] Add test for the cost model of vector insert/extract element.
jacquesguan [Wed, 31 Aug 2022 08:58:37 +0000 (16:58 +0800)]
[RISCV][test] Add test for the cost model of vector insert/extract element.

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D133005

2 years agoRevert "[clang, llvm] Add __declspec(safebuffers), support it in CodeView"
Sylvestre Ledru [Tue, 13 Sep 2022 08:53:59 +0000 (10:53 +0200)]
Revert "[clang, llvm] Add __declspec(safebuffers), support it in CodeView"

Causing:
https://github.com/llvm/llvm-project/issues/57709

This reverts commit ab56719acd98778fb2e48fa425ac7c8d27bdea86.

2 years ago[flang][runtime] ensure character compares to blank are unsigned
Jean Perier [Tue, 13 Sep 2022 08:39:33 +0000 (10:39 +0200)]
[flang][runtime] ensure character compares to blank are unsigned

CompareToBlankPadding was doing signed compare on architecture where
`char` is signed. This caused `'abc'//char(128) > 'abc'` to evaluate
to false at runtime instead of true.

Differential Revision: https://reviews.llvm.org/D133693

2 years ago[clang][Interp][NFC] Use constexpr if in OffsetHelper
Timm Bäder [Sun, 11 Sep 2022 12:39:52 +0000 (14:39 +0200)]
[clang][Interp][NFC] Use constexpr if in OffsetHelper

Add is a template parameter, so we can use constexpr if here.

2 years ago[clang][Interp][NFC] InterpFrame::getParam can be const
Timm Bäder [Sat, 10 Sep 2022 10:55:41 +0000 (12:55 +0200)]
[clang][Interp][NFC] InterpFrame::getParam can be const

Make stackRef() const as well and use that.

2 years ago[clang][Interp][NFC] InterpFrame::getLocal() can be const
Timm Bäder [Sat, 10 Sep 2022 10:51:50 +0000 (12:51 +0200)]
[clang][Interp][NFC] InterpFrame::getLocal() can be const

Make localRef() const and use that.

2 years ago[clang][Interp][NFC] InterpFrame: localBlock() can be const
Timm Bäder [Sat, 10 Sep 2022 07:42:02 +0000 (09:42 +0200)]
[clang][Interp][NFC] InterpFrame: localBlock() can be const

2 years ago[clang][Interp][NFC] Forward-declare Pointer in PrimType header
Timm Bäder [Tue, 6 Sep 2022 07:31:17 +0000 (09:31 +0200)]
[clang][Interp][NFC] Forward-declare Pointer in PrimType header

No need to include the full Pointer.h here.

2 years ago[clang][Interp] Handle DeclRefExpr of reference types
Timm Bäder [Wed, 31 Aug 2022 07:24:03 +0000 (09:24 +0200)]
[clang][Interp] Handle DeclRefExpr of reference types

References are implemented through pointers, so we need a second deref
when encountering a DeclRefExpr of a reference type.

Differential Revision: https://reviews.llvm.org/D132997

2 years agoFix Bazel build for llvm-lipo (61e54384982afa89539cc76b79a42af883b172f2)
Haojian Wu [Tue, 13 Sep 2022 08:26:00 +0000 (10:26 +0200)]
Fix Bazel build for llvm-lipo (61e54384982afa89539cc76b79a42af883b172f2)

2 years ago[BasicAA] Delay getAllocTypeSize() call (NFC)
Nikita Popov [Mon, 12 Sep 2022 16:29:53 +0000 (18:29 +0200)]
[BasicAA] Delay getAllocTypeSize() call (NFC)

This call is expensive, so don't perform it for zero indices.

Also rename the variable to use Alloc rather than Alloca, this
doesn't have anything to do with allocas in particular.

2 years ago[LV] Mark Instr as const in scalarizeInstruction. (NFC).
Florian Hahn [Tue, 13 Sep 2022 08:09:18 +0000 (09:09 +0100)]
[LV] Mark Instr as const in scalarizeInstruction. (NFC).

This is to reduce the diff in follow-up changes.

2 years ago[TypePromotionPass] Don't treat phi's as ToPromote
David Green [Tue, 13 Sep 2022 07:57:15 +0000 (08:57 +0100)]
[TypePromotionPass] Don't treat phi's as ToPromote

This attempts to stop the type promotion pass transforming where it is
not profitable, by not marking PhiNodes as ToPromote and being more
aggressive about pulling extends out of loops.

Differential Revision: https://reviews.llvm.org/D133203

2 years ago[clang] Explicitly set the EmulatedTLS codegen option. NFC.
Martin Storsjö [Fri, 26 Aug 2022 13:47:07 +0000 (16:47 +0300)]
[clang] Explicitly set the EmulatedTLS codegen option. NFC.

Set the EmulatedTLS option based on `Triple::hasDefaultEmulatedTLS()`
if the user didn't specify it; set `ExplicitEmulatedTLS` to true
in `llvm::TargetOptions` and set `EmulatedTLS` to Clang's
opinion of what the default or preference is.

This avoids any risk of deviance between the two.

This affects one check of `getCodeGenOpts().EmulatedTLS` in
`shouldAssumeDSOLocal` in CodeGenModule, but as that check only
is done for `TT.isWindowsGNUEnvironment()`, and
`hasDefaultEmulatedTLS()` returns false for such environments
it doesn't make any current testable difference - thus NFC.

Some mingw distributions carry a downstream patch, that enables
emulated TLS by default for mingw targets in `hasDefaultEmulatedTLS()`
- and for such cases, this patch does make a difference and fixes the
detection of emulated TLS, if it is implicitly enabled.

Differential Revision: https://reviews.llvm.org/D132916

2 years agoMove ExpandLargeDivRem to llvm/test/CodeGen/X86 because they need a triple
Matthias Gehre [Tue, 13 Sep 2022 07:29:24 +0000 (08:29 +0100)]
Move ExpandLargeDivRem to llvm/test/CodeGen/X86 because they need a triple

2 years ago[mlir][NFC] Fix polynomial Approx test.
jacquesguan [Fri, 9 Sep 2022 08:39:08 +0000 (16:39 +0800)]
[mlir][NFC] Fix polynomial Approx test.

This patch refators the polynomial Approx test. Now we pass the constant as function argument to avoid constant folder.

Link: https://github.com/llvm/llvm-project/issues/57613
Reviewed By: Mogball

Differential Revision: https://reviews.llvm.org/D133562

2 years ago[analyzer] Dump the environment entry kind as well
Balazs Benics [Tue, 13 Sep 2022 07:04:27 +0000 (09:04 +0200)]
[analyzer] Dump the environment entry kind as well

By this change the `exploded-graph-rewriter` will display the class kind
of the expression of the environment entry. It makes easier to decide if
the given entry corresponds to the lvalue or to the rvalue of some
expression.

It turns out the rewriter already had support for visualizing it, but
probably was never actually used?

Reviewed By: martong

Differential Revision: https://reviews.llvm.org/D132109