Summary:
This patch adds optional field into function summary,
implements asm and bitcode serialization. YAML
serialization is omitted and can be added later if
needed.

This patch includes this information into summary only
if module contains at least one sanitize_memtag function.
In a near future MTE is the user of the analysis.
Later if needed we can provede more direct control
on when information is included into summary.

Reviewers: eugenis

Subscribers: hiraditya, steven_wu, dexonsmith, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D80908

This patch extends numerical expressions to allow calls to
predefined functions. These calls can be combined with the
existing numerical operators, which includes nesting calls.

The call syntax is:

  <func>(<args>)

Where <func> is a predefined string literal, currently limited to
one of add, max, min and sub. <arg> is a comma seperated list of
numerical expressions.

Subscribers: arichardson, hiraditya, thopre, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79936

Summary:
I don't love this behavior, but it prevents crashing when indexing boost
headers, and I can't think of a better practical alternative.

Fixes https://reviews.llvm.org/D81530

Based on a patch by AnakinZheng!

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits, AnakinZheng

Tags: #clang

Differential Revision: https://reviews.llvm.org/D81530

This patch relaxes the post-dominance requirement for accesses to
objects visible after the function returns.

Instead of requiring the killing def to post-dominate the access to
eliminate, the set of 'killing blocks' (= blocks that completely
overwrite the original access) is collected.

If all paths from the access to eliminate and an exit block go through a
killing block, the access can be removed.

To check this property, we first get the common post-dominator block for
the killing blocks. If this block does not post-dominate the access
block, there may be a path from DomAccess to an exit block not involving
any killing block.

Otherwise we have to check if there is a path from the DomAccess to the
common post-dominator, that does not contain a killing block. If there
is no such path, we can remove DomAccess. For this check, we start at
the common post-dominator and then traverse the CFG backwards. Paths are
terminated when we hit a killing block or a block that is not executed
between DomAccess and a killing block according to the post-order
numbering (if the post order number of a block is greater than the one
of DomAccess, the block cannot be in in a path starting at DomAccess).

This gives the following improvements on the total number of stores
after DSE for MultiSource, SPEC2K, SPEC2006:

Tests: 237
Same hash: 206 (filtered out)
Remaining: 31
Metric: dse.NumRemainingStores

Program                                        base      new100    diff
 test-suite...CFP2000/188.ammp/188.ammp.test   3624.00   3544.00   -2.2%
 test-suite...ch/g721/g721encode/encode.test   128.00    126.00    -1.6%
 test-suite.../Benchmarks/Olden/mst/mst.test    73.00     72.00    -1.4%
 test-suite...CFP2006/433.milc/433.milc.test   3202.00   3163.00   -1.2%
 test-suite...000/186.crafty/186.crafty.test   5062.00   5010.00   -1.0%
 test-suite...-typeset/consumer-typeset.test   40460.00  40248.00  -0.5%
 test-suite...Source/Benchmarks/sim/sim.test   642.00    639.00    -0.5%
 test-suite...nchmarks/McCat/09-vor/vor.test   642.00    644.00     0.3%
 test-suite...lications/sqlite3/sqlite3.test   35664.00  35563.00  -0.3%
 test-suite...T2000/300.twolf/300.twolf.test   7202.00   7184.00   -0.2%
 test-suite...lications/ClamAV/clamscan.test   19475.00  19444.00  -0.2%
 test-suite...INT2000/164.gzip/164.gzip.test   2199.00   2196.00   -0.1%
 test-suite...peg2/mpeg2dec/mpeg2decode.test   2380.00   2378.00   -0.1%
 test-suite.../Benchmarks/Bullet/bullet.test   39335.00  39309.00  -0.1%
 test-suite...:: External/Povray/povray.test   36951.00  36927.00  -0.1%
 test-suite...marks/7zip/7zip-benchmark.test   67396.00  67356.00  -0.1%
 test-suite...6/464.h264ref/464.h264ref.test   31497.00  31481.00  -0.1%
 test-suite...006/453.povray/453.povray.test   51441.00  51416.00  -0.0%
 test-suite...T2006/401.bzip2/401.bzip2.test   4450.00   4448.00   -0.0%
 test-suite...Applications/kimwitu++/kc.test   23481.00  23471.00  -0.0%
 test-suite...chmarks/MallocBench/gs/gs.test   6286.00   6284.00   -0.0%
 test-suite.../CINT2000/254.gap/254.gap.test   13719.00  13715.00  -0.0%
 test-suite.../Applications/SPASS/SPASS.test   30345.00  30338.00  -0.0%
 test-suite...006/450.soplex/450.soplex.test   15018.00  15016.00  -0.0%
 test-suite...ications/JM/lencod/lencod.test   27780.00  27777.00  -0.0%
 test-suite.../CINT2006/403.gcc/403.gcc.test   105285.00 105276.00 -0.0%

There might be potential to pre-compute some of the information of which
blocks are on the path to an exit for each block, but the overall
benefit might be comparatively small.

On the set of benchmarks, 15738 times out of 20322 we reach the
CFG check, the CFG check is successful. The total number of iterations
in the CFG check is 187810, so on average we need less than 10 steps in
the check loop. Bumping the threshold in the loop from 50 to 150 gives a
few small improvements, but I don't think they warrant such a big bump
at the moment. This is all pending further tuning in the future.

Reviewers: dmgreen, bryant, asbirlea, Tyker, efriedma, george.burgess.iv

Reviewed By: george.burgess.iv

Differential Revision: https://reviews.llvm.org/D78932

This reverts commit 69c5ff46.
This reverts commit 603d58b5.
This reverts commit ba10bedf.
This reverts commit 39b3c41b.

This reverts commit 020815fa.
Reason: PS4 buildbot broke

Currently, some fairly arbitrary subset of overriden methods in
RISCVISelLowering are private rather than public (which is the
visibility they have in TargetLowering). I suspect this is a holdover
from too closely copying another backend.

D78545 pointed out this can be difficult for some downstream patches,
and nobody has come forward to suggest a reason for keeping the
visibility as-is.

This commit simply makes all overridden methods match the public
visiblity of the parent.

Differential Revision: https://reviews.llvm.org/D79928

Extract the existing code from getInstructionThroughput into
TTImpl::getUserCost. The duplicated code in the AMDGPU backend has
also been removed.

Differential Revision: https://reviews.llvm.org/D81448

Add the remaining arithmetic opcodes into the generic implementation
of getUserCost and then call this from getInstructionThroughput. Most
of the backends have been modified to return the base implementation
for cost kinds other RecipThroughput. The outlier here is AMDGPU
which already uses getArithmeticInstrCost for all the cost kinds.
This change means that most of the opcodes can be removed from that
backends implementation of getUserCost.

Differential Revision: https://reviews.llvm.org/D80992

Summary:
Add LHM/SHM instructions.  Add regression tests for them of asmparser,
mccodeemitter, and disassembler.  In order to add those instructions,
add new decode functions to disassembler, and add new print functions
to instprinter.

Differential Revision: https://reviews.llvm.org/D81535

The memory folding raplaced the old instruction without copying the symbols assigned. Which will resulted in built fail due to the lost symbols.

Reviewed by craig.topper

Differential Revision: https://reviews.llvm.org/D78471

These ACLE tests were missing in previous patches:
- D79357: [SveEmitter] Add builtins for svdup and svindex
- D78747: [SveEmitter] Add builtins for compares and ReverseCompare flag.
- D76238: [SveEmitter] Implement builtins for contiguous loads/stores

This reverts commit 28415e58.  It's
causing buildbot failures. (Probably just need to fix the triple for the
test, but I'll look more tomorrow.)

Summary:
Introduce on-demand parsing of needed ASTs during CTU analysis.
The index-file format is extended, and analyzer-option CTUInvocationList
is added to specify the exact invocations needed to parse the needed
source-files.

Reviewers: martong, balazske, Szelethus, xazax.hun, whisperity

Reviewed By: martong, xazax.hun

Subscribers: gribozavr2, thakis, ASDenysPetrov, ormris, mgorny, whisperity, xazax.hun, baloghadamsoftware, szepet, rnkovacs, a.sidorin, mikhail.ramalho, Szelethus, donat.nagy, dkrupp, Charusso, steakhal, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75665

Missed this file in the recent reorg.

After D79300, we don't rewrite InputFile::mb to an empty buffer.
In thinLTOCreateEmptyIndexFiles(), we should check LazyObjFile::fetched
as well as checking whether mb is a bitcode, otherwise we would overwrite (path + .thinlto.bc) with an empty index.

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D80779

halves the number of CNT instructions generated

Differential Revision: https://reviews.llvm.org/D80675

This is useful for manipulating the standard dialect from transformations
outside of the standard dialect.

Differential Revision: https://reviews.llvm.org/D80609

Reviewers: asteinhauser

Subscribers: mgorny, tschuett, ecnelises, libc-commits

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D81519

The fp16 ops are legalized by extending/chopping them as needed.
The tests are shamelessly stolen from the RISC-V backend.

Differential Revision: https://reviews.llvm.org/D77569

Summary: Fix variables used only in asserts.

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D81522

This ensures that we match SelectionDAG behaviour by waiting until the expand
pseudos pass to generate ADRP + ADD pairs. Doing this at selection time for the
G_ADD_LOW is fine because by the time we get to selecting the G_ADD_LOW,
previous attempts to fold it into loads/stores must have failed.

Differential Revision: https://reviews.llvm.org/D81512

[X86] Assign a feature to tremont, goldmont, goldmont-plus, icelake-client, and icelake for target multiversioning priority.

Without this these CPUs all caused the compiler to assert when
used for multiversioning.

Summary:
Consider: `const int* get_foo() {return nullptr;}`
The suggested fix should be `static const int* get_foo(){}`
and not `const static int* get_foo(){}`

Reviewers: gribozavr2

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D81444

The current tests verify if the result of -infinity is a quiet NaN with
sign bit set. But, that need not be the case on all platforms. So, just
checking that the result is a quiet NaN and ignoring the sign bit is
good enough.

Modules are not orphaned and it finds the existing module with the same
UUID from test_partial_uuid_match.

Summary:
Even though this operation is intended for 1d/2d conversions currently,
leaving a semantic hole in the lowering prohibits proper testing of this
operation. This CL adds a straightforward reference implementation for the
missing cases.

Reviewers: nicolasvasilache, mehdi_amini, ftynse, reidtatge

Reviewed By: reidtatge

Subscribers: mehdi_amini, rriddle, jpienaar, shauheen, antiagainst, nicolasvasilache, arpith-jacob, mgester, lucyrfox, liufengdb, stephenneuendorffer, Joonsoo, grosul1, frgossen, Kayjukh, jurahul, msifontes

Tags: #mlir

Differential Revision: https://reviews.llvm.org/D81503

The line defining CAPTURE was removed in r302270.

Conditionally adding subdirectories was missed in a few places previously.
This change adds the conditionals. A sub-directory was being added
needlessly in another place. That has been removed.

Summary:
If a test depends on a skipped entrypoint, then the test is also
skipped. This setup will be useful as we gradually add support for
more operating systems and target architectures.

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D81489

blocks.

Summary: The current LoopFusion forget to update the incoming block of
the phis in second loop guard non loop successor from second loop guard
block to first loop guard block. A test case is provided to better
understand the problem.
Reviewed By: jdoerfert
Subscribers: hiraditya, llvm-commits
Tag: LLVM
Differential Revision: https://reviews.llvm.org/D81421

When we encountered a type name in a derived type definition, we were
sometimes finding a component of that name rather than the type from
the enclosing scope. Fix this by introducing `NonDerivedTypeScope()` to
start the search in the right scope.

Differential Revision: https://reviews.llvm.org/D81493

In addition to having the default fallback from Python 3 to Python 2, it
should also be possible to build against Python 2 explicitly. This patch
makes that possible by setting LLDB_PYTHON_VERSION. The variable only
has effect with CMake 3.12 or later.

Differential revision: https://reviews.llvm.org/D81501

Reviewers: efriedma, kmclaughlin, sdesmalen, fhahn, bkramer, anna, gchatelet, c-rhodes, david-arm, fpetrogalli

Reviewed By: david-arm

Subscribers: tschuett, hiraditya, rkruppe, psnobl, dantrushin, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D80336

This reverts commit f25e3c2d.
Added workaround for tempdir being a symlink on mac.