This change fixes linking errors on some llvm builders.

The patch does not depend on the availability of the library functions for
memcpy/memset as it operates on LLVM intrinsics.  The optimizations are useful
on the targets that have these functions disabled (e.g. NVPTX & AMDGPU).

Differential Revision: https://reviews.llvm.org/D104801

Update Bazel config for
https://github.com/llvm/llvm-project/commit/6103fdfab4
by deleting the llvm-elfabi target.

Differential Revision: https://reviews.llvm.org/D106295

Reviewers: vitalybuka

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D106218

The new testing configuration did not turn off #pragma system_header,
which means we were not seeing warnings in system headers.

Differential Revision: https://reviews.llvm.org/D106187

This change merges llvm-elfabi and llvm-ifs tools.

Differential Revision: https://reviews.llvm.org/D100139

This diff changes llvm-ifs to use unified IFS file format
and perform other renaming changes in preparation for the
merging between elfabi/ifs.

Differential Revision: https://reviews.llvm.org/D99810

This change implements unified text stub format and command line
interface proposed in the elfabi/ifs merge plan.

Differential Revision: https://reviews.llvm.org/D99399

Bugfix: The compiler should be able to generate a memset to nullptr.

Review: Ulrich Weigand

causes a seg fault (see https://reviews.llvm.org/D104471).

This reverts commit c305557a.

Added shape inference handles cases for convolution operations. This includes
conv2d, conv3d, depthwise_conv2d, and transpose_conv2d. With transpose conv
we use the specified output shape when possible however will shape propagate
if the output shape attribute has dynamic values.

Reviewed By: jpienaar

Differential Revision: https://reviews.llvm.org/D105645

Although this combine checks that there's no load folding barriers between
the loads that it's trying to merge, it was inserting the load at the
MIRBuilder's default insertion point, which is the G_OR use inst.

This was causing a miscompile in the test suite's
SingleSource/Regression/C/gcc-c-torture/execute/GCC-C-execute-bswap-2

Differential Revision: https://reviews.llvm.org/D106251

Also fixed TLS tests swapping addr & value in store op
Differential Revision: https://reviews.llvm.org/D106096

[SelectionDAG][RISCV] Use isSExtCheaperThanZExt to control whether sext or zext is used for constant folding any_extend.

RISCV would prefer a sign extended constant since that works better
with our constant materialization. We have an existing TLI hook we
use to control sign extension of setcc operands in type legalization.
That hook happens to do the right check we need here, but might be
straying from its original purpose. With only RISCV defining this
hook in tree, I wasn't sure if it was worth adding another hook
with identical behavior.

This is an alternative to D105785 where I tried to handle this in
the RISCV backend by not creating ANY_EXTENDs in some places.

Reviewed By: frasercrmck

Differential Revision: https://reviews.llvm.org/D105918

This deletes all the pooling ops in LinalgNamedStructuredOpsSpec.tc. All the
uses are replaced with the yaml pooling ops.

Reviewed By: gysit, rsuderman

Differential Revision: https://reviews.llvm.org/D106181

Some template functions were missing '&&' in function arguments,
therefore these were always taken by value after template instantiation.

This patch adds the double ampersand to introduce proper perfect
forwarding.

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D106148

This patch adds the `-faltivec-src-compat=mixed` option to the
`builtins-ppc-altivec.c` test.

Currently, the default for `-faltivec-src-compat` is `mixed`. The reason we
explicitly specify `mixed` to the RUN lines of this test is because eventually,
the default will set to `xl`.

Having the default as `xl` changes the CHECKs of this test slightly, as it
reorders some of the `vector bool` and `vector pixel` CHECKs (since under the
`xl` option, `vector bool` and `vector pixel` are treated in the same way as
other vector scalars). Explicitly specifying `mixed` ensures that we are testing
pre-existing Clang behaviour.

Differential Revision: https://reviews.llvm.org/D106282

As encountered on D106053, we need to be very explicit that the Assertion nodes don't hold true for a poison value (or for specific poisoned vector elements).

Differential Revision: https://reviews.llvm.org/D106257

Pulled out of D106280

Add pattern to fold a TensorCast into a PadTensorOp if the cast removes static size information.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D106278

This removes the promotion of NEON AND, OR and XOR nodes to v2i32/v4i32,
treating them the same as the AArch64 and MVE backends where we just add
the relevant patterns for each legal type. This prevents a lot of
bitcasts from being added to the DAG, which have the potential to make
optimizations more difficult. It does mean adding extra patterns, and
some codegen can change due to the types now being legal, not promoted.

Differential Revision: https://reviews.llvm.org/D105588

This patch adds a new pass called LNICM which is a LoopNest version of LICM and a test case to show how LNICM works.
Basically, LNICM only hoists invariants out of loop nest (not a loop) to keep/make perfect loop nest. This enables later optimizations that require perfect loop nest.

Reviewed By: Whitney

Differential Revision: https://reviews.llvm.org/D104180

This also avoids improperly legalizing some truncating vector stores.

This is part of an effort to reduce the differences between the custom C++ bindings used right now by polly in `lib/External/isl/include/isl/isl-noxceptions.h` and the official isl C++ interface.

Changes made:
 - Stop using `isl::set::lex_le_set`. The official way to do this is to use `isl::map::lex_le_at`
 - Removed `isl::set::lex_le_set` from `isl-noexceptions.h`
 - `isl-noexceptions.h` has been generated by this https://github.com/patacca/isl/commit/266fea1d3dbd31c23d866eb363fcc8e61e50419f

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D106269

Define and implement an API for use by lowering to
implement operations on pointers.

Differential Revision: https://reviews.llvm.org/D106170

For some reason we have 2 switches on arch and add
half of arch flags in one place and half in another.
Merge these 2 switches.

Reviewed By: melver

Differential Revision: https://reviews.llvm.org/D106274

Use _Float16 as the half-precision floating point type. Define a new
type specifier 'x' for the _Float16 type.

Differential Revision: https://reviews.llvm.org/D105001

The CCValAssign types should now be accurate, so these are no longer
necessary.

This reverts commit e9c7291c.

Fix failing tests

This patch implements the initialization of vectors under the
-faltivec-src-compat=xl option introduced in https://reviews.llvm.org/D103615.

Under this option, the initialization of scalar vectors, vector bool, and vector
pixel are treated the same, where the initialization value is splatted across
the whole vector.

This patch does not change the behaviour of the -faltivec-src-compat=mixed option,
which is the current default for Clang.

Differential Revision: https://reviews.llvm.org/D106120

Avoid a crash when using instruction referencing if x87 floating point
instructions are used. These instructions are significantly mutated when
they're rewritten from referring to registers, to referring to
floating-point-stack positions. As a result, their operands are re-ordered,
and (InstrRef) LiveDebugValues asserts when it sees a DBG_INSTR_REF
referring to a non-reg non-def register operand.

To fix this, drop the instruction numbers, and thus variable locations.
This patch adds a helper utility do do that.

Dropping the variable locations is sub-optimal, but applying DBG_VALUEs to
the $fp0 and similar registers is dropped on emission too. It seems we've
never done well at describing variables that live in x87 registers, at all.

Differential Revision: https://reviews.llvm.org/D105657

Summary:
The AIX linker will produce errors on unresolved weak symbols.  Change the
generated code to not check for the initialization function but just call
it and ensure that it always exists.  Also, the AIX atexit routine has a
different name (and signature) so call it correctly.  Update the lit tests
to test on AIX appropriately.

Author: Jamie Schmeiser <schmeise@ca.ibm.com>
Reviewed By: hubert.reinterpretcast (Hubert Tong)
Differential Revision: https://reviews.llvm.org/D104420

The last use of isNON_TRUNCStore was removed on Oct 10, 2018 in commit
07acc992.

isTRUNCStore seems to be unused for at least 10 years.

We were using the wrong VT for this final VSELECT,
it should be in the final comparison VT,
not the source value's VT.

Fixes https://bugs.llvm.org/show_bug.cgi?id=51133