Differential Revision: https://reviews.llvm.org/D149390

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D149334

As far as I can tell, this just computes the filename of the FileSpec,
which is already conveniently stored in m_filename. We can use
FileSpec::GetFilename() instead.

Differential Revision: https://reviews.llvm.org/D149663

FileSpec::GetFileNameExtension returns a StringRef. In some cases we
are calling it and then storing the result in a local. To prevent
cases where we store the StringRef, mutate the Filespec, and then try to
use the stored StringRef afterwards, I've audited the callsites and made
adjustments to mitigate: Either marking the FileSpec it comes from as
const (to avoid mutations) or by not storing the StringRef in a local if
it makes sense not to.

Differential Revision: https://reviews.llvm.org/D149671

Doesn't yet add all the CodeGen deps all over the place.

Apparently `\b` stopped working with --pickaxe-regex for some reason.

The `add_libc_test` option allows us to enable both kinds of tests in a
single option. However, some tests cannot be made hermetic with the
current approach. Such as tests that rely on system utilities or
libraries. This patch adds two options `UNIT_TEST_ONLY` and
`HERMETIC_TEST_ONLY` to offer more fine-grained control over which
version gets built. This makes it explicit which version a test supports
and why.

Depends on D149662

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D149691

This changes over the string unit tests to the new `add_libc_test`
framework. The one test that wasn't changes was the memory utils because
it overran the static buffer used for the hermetic test's bump pointer.

Depends on D149656

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D149662

Currently we use `assert` as a stand-in for the typical test assertions.
This is because these functions exist outside of the base test class so
we can't use the typical assertion methods. The presence of these
asserts makes it difficult to compile these tests in a standalone
format. This patch removes all occurrences.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D149656

This patch add or removes XFAIL decorator from various tests which were marked
xfail for windows.

since 44363f2f various tests have started passing but introduced a couple of new failures.
Weight is in favor of new XPasses and I have removed XFail decorator from them. Also
some new tests have started failing for which we need to file separate bugs. I have
marked them xfail for now and will add the bug id after investigating the issue.

Differential Revision: https://reviews.llvm.org/D149235

If we know one operand is positive for maxnum, or one is negative
for minnum, the result will have the same sign.

This reverts commit c117c2c8.

itaniumDemangle calls std::strlen with the results of
std::string_view::data() which may not be NUL-terminated. This causes
lld/test/wasm/why-extract.s  to fail when "expensive checks" are enabled
via -DLLVM_ENABLE_EXPENSIVE_CHECKS=ON. See D149675 for further
discussion. Back this out until the individual demanglers are converted
to use std::string_view.

A func may not have a body.

Differential Revision: https://reviews.llvm.org/D149688

Now that the runtime tracks the lifetime access density directly, we can
use that directly in the threshold checks instead of less accurately
computing from other statistics.

Differential Revision: https://reviews.llvm.org/D149684

This solves issues caused by the symbols for internal components being
marked as hidden. When dynamically linked, the tests of internal
components, such as printf_parser_test, fail due to the symbols being
unavailable.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D149674

This is an optional request, but supporting it makes the experience
better when re-launching a big binary that takes significant time to
parse: instead of tearing down and re-create the whole session we just
need to kill the current process and launch a new one.

Some non-obvious comments that might help review this change:

* After killing the process, we get an "exited" event for it. Because
  the process no longer exists some interesting things can occur that
  manifest as flaky failures if not dealt with:

  - `EventIsProcessEvent` relies on `SBEvent::GetBroadcasterClass`,
    which can crash if the broadcaster is no longer there: the event
    only holds a weak_ptr to its broadcaster, and `GetBroadcasterClass`
    uses it without checking.

    Other `EventIs*` functions look at the flavor of the EventData, so I
    have modified EventIsProcessEvent to do that.

  - We keep the PID of the old process so we can detect its "exited"
    event and not terminate the whole session. But sometimes the
    SBProcess we get from the event won't have a PID, for some reason.

* I have factored out the code to launch a process out to a new
  LaunchProcess function, so it can be used from both `request_launch`
  and `request_restart`.

* The restart_runInTerminal test has the same problem with debug builds
  as the original runInTerminal test: when attaching to the launcher
  instance of lldb-vscode it takes a long time to parse its debug info.
  I have used the same workaround to disable that particular test for
  debug builds.

Differential Revision: https://reviews.llvm.org/D147831

This is an attempt to reduce the insane amount of network we use when
uploading Clang binaries to Buildkite for other jobs to use. We think
that removing debug information will result in much smaller binaries.

The MLIR SVE integration tests are now enabled in the
clang-aarch64-full-2stage buildbot under emulation (QEMU) and one of the
sparse integration tests is failing [1]:

  * Integration/Dialect/SparseTensor/CPU/concatenate_dim_1.mlir

That test is failing because we we don't have a LIT substitution to
replace:
  ```
  ; RUN: mlir-cpu-runner <command>
  ```
with
  ```
  ; RUN: <emulator> mlir-cpu-runner <command>
  ```
clang-aarch64-full-2stage does not support SVE natively and hence all
SVE integration tests require emulation. Other SVE tests use `lli` (for
which we do have the required substitution) and hence are not affected.

This patch simplifies concatenate_dim_1.mlir to always use fixed-width
vectorisation. We will re-enable scalable vectorisation once LIT
substitutions for `mlir-cpu-runner` are updated.

[1] https://lab.llvm.org/buildbot/#/builders/179/builds/6062

Extending yaml profile format with block hashes, which are used for stale
profile matching. To avoid duplication of the code, created a new class with a
collection of utilities for computing hashes.

Reviewed By: Amir

Differential Revision: https://reviews.llvm.org/D144306

NFC.

Decrease NumOperands from 32 to 16bits (matches MCInstrDesc) so we can use saved bits to extend Flags (https://reviews.llvm.org/D118118).

Reviewed By: barannikov88

Differential Revision: https://reviews.llvm.org/D149445

Add tensor.bitcast operator to bitcast between two tensors of compatible shape
and same bit width. This can be use to reinterpret an unsigned integer as a
signed integer or vice versa.

Reviewed By: rsuderman

Differential Revision: https://reviews.llvm.org/D149608

Removes the 'notcoldandcold' allocation type summary
(de)serialization support added in D135714, after realizing that this
will never be generated in practice.

There are 2 uses of the allocation type keywords in the summary. One is
for the individual profiled memprof context summaries, and each context
can only be assigned a single type of hotness. The second is in the
clone version information produced by the MemProfContextDisambiguation
whole program step, and we only create a clone for a specific allocation
type.

Differential Revision: https://reviews.llvm.org/D149669

Exposed by the test from 8f966ced.

All indexes passed to GetPropertyAtIndex are constants generated by
ablegen. We should never pass an invalid index.

Extra test coverage for D149668.

For me, the test fails for nvptx64 offload.  The problem was
introduced by D146838, which landed as 747af241.  It tries to copy
a string constant's address from device to host and then print the
string.  This patch copies the contents of the string instead.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D149623

This reverts commit e15d6b52.

Newly added test fails on Darwin platforms and arm.

Differential Revision: https://reviews.llvm.org/D147370

Follow up to D149234 for bots without lld.

When constructing an array expression where the index expression
was a pack expansion, we would construct an ArraySubscriptExpr
instead of an CreateOverloadedArraySubscriptExpr, and pack
expansion would not occur - leading a crash during code gen
or a failure during constant evaluation

Reviewed By: erichkeane, shafik

Differential Revision: https://reviews.llvm.org/D149637

Reviewed By: ldionne, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D149595

Adds pre-SSE4 v8i16 abdu handling - we already have something similar for umax(x,y) -> add(x,usubsat(y,x)) / umin(x,y) -> sub(x,usubsat(x,y))

(I'm starting to look at adding generic TargetLowering expandABD() handling and came across this missed opportunity).

Inspiration: http://0x80.pl/notesen/2018-03-11-sse-abs-unsigned.html

Alive2: https://alive2.llvm.org/ce/z/gMhaTa

This reverts commit 1f74964b.

The googles. They do nothing!

This reverts commit 8cd1f0d8.

It causes issues when OMPT is disabled explicitly and dependences are not set
correctly.