Changes

[compiler-rt][profile] Make corrupted-profile.c more robust

This test specifically checks that profiles are not mergeable if there's a
change in the CounterPtr in the profile header. The test manually changes
CounterPtr by explicitly calling memset on some offset into the profile file.
This test would fail if binary IDs were emitted because the offset calculation
does not take into account the binary ID sizes.

This patch updates the test to use types provided in profile/InstrProfData.inc
to make it more resistant to profile layout changes.

Differential Revision: https://reviews.llvm.org/D110277

[ThinLTO] Don't emit original GUID for locals to distributed indexes

In ThinLTO for locals we normally compute the GUID from the name after
prepending the source path to get a unique global id. SamplePGO indirect
call profiles contain the target GUID without this uniquification,
however (unless compiling with -funique-internal-linkage-names).
Therefore, the index contains the original GUID of the local symbols
(without module path prepended to uniquify), in order to correctly
handle the call edges added for these indirect call profile targets
with SamplePGO.

We were emitting these to the combined index when writing it out as
bitcode, which is unnecessary and causes overhead when writing out the
indexes for distributed backends. The only use of the original GUID name
is in the thin link. Suppress it in that case. This reduced the thin
link time for a large distributed build by about 7%, and the aggregate
size of the serialized indexes by over 2%.

Continue to print it when writing out the full index, since that is just
used for debugging and testing.

Update a distributed thinlto index test to contain a local and ensure
that we don't get a COMBINED_ORIGINAL_NAME record.

Differential Revision: https://reviews.llvm.org/D110296

[ThinLTO] Fix bot failures

Fix bot failures after 2c1defeee40cf643ea6f0fa5e01164c9a4c48c30. The new
GUID I added isn't matching because it is a local with the source path
prepended. There isn't much use in matching the GUID's exactly anyway,
so remove those from the patterns.

[mlir][linalg] Merge all tiling passes into a single one.

Passes such as `linalg-tile-to-tiled-loop` are merged into `linalg-tile`.

Differential Revision: https://reviews.llvm.org/D110214

[mlir][linalg] Support tile+peel with TiledLoopOp

Only scf.for was supported until now.

Differential Revision: https://reviews.llvm.org/D110220

Add missing storageType to AttrDef to ODS

This is only noticeable when using an attribute across dialects I think.
Previously the namespace would be ommited, but it wouldn't matter as
long as the generated code stays within a single namespace.

Differential Revision: https://reviews.llvm.org/D110367

[Polly] Implement user-directed loop distribution/fission.

This is a simple version without the possibility to define distribute
points or followup-transformations. However, it is the first
transformation that has to check whether the transformation is correct.

It interprets the same metadata as the LoopDistribute pass.

Re-apply after revert in c7bcd72a38bcf99e03e4651ed5204d1a1f2bf695 with
fix: Take isBand out of #ifndef NDEBUG since it now is used
unconditionally.

[Driver] Default Generic_GCC x86 to -fasynchronous-unwind-tables

to match GCC and Clang's own x86-64.

[AMDGPU] Legalize initialized LDS variables

We don't allow an initializer for LDS variables
and there is an early abort during instruction
selection. This patch legalizes them by ignoring
the init values. During assembly emission, proper
error reporting already exists for such instances.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D109901

DebugInfo: Implement the -gsimple-template-names functionality

This excludes certain names that can't be rebuilt from the available
DWARF:

* Atomic types - no DWARF differentiating int from atomic int.
* Vector types - enough DWARF (an attribute on the array type) to do
  this, but I haven't written the extra code to add the attributes
  required for this
* Lambdas - ambiguous with any other unnamed class
* Unnamed classes/enums - would need column info for the type in
  addition to file/line number
* noexcept function types - not encoded in DWARF

[ORC] Introduce EPCGenericDylibManager / SimpleExecutorDylibManager.

EPCGenericDylibManager provides an interface for loading dylibs and looking up
symbols in the executor, implemented using EPC-calls to functions in the
executor.

SimpleExecutorDylibManager is an executor-side service that provides the
functions used by EPCGenericDylibManager.

SimpleRemoteEPC is updated to use an EPCGenericDylibManager instance to
implement the ExecutorProcessControl loadDylib and lookup methods. In a future
commit these methods will be removed, and clients updated to use
EPCGenericDylibManagers directly.

[gn build] Port a2c1cf09dfaa

[TableGen] Allow targets to entirely ignore Psets for registers

Tablegen currently expects targets to have at least one
pressure set for every broader register category. AMDGPU's
VGPR or AGPR, for instance, seemed to work correctly without
any pset, though we have forced one for each type to avoid
the assertion in computeRegUnitSets. However, psets can not
be entirely empty. At least one set is mandatory for every
target. This patch bypasses the assertion for the classes
when GeneratePressureSet is zero while ensuring the
RegUnitSets are not empty.

Reviewed By: arsenm, rampitec

Differential Revision: https://reviews.llvm.org/D110305