llvm-svn: 373567

[X86] Add DAG combine to turn (bitcast (vbroadcast_load)) into just a vbroadcast_load if the scalar size is the same.

This improves broadcast load folding of i64 elements on 32-bit
targets where i64 isn't legal.

Previously we had to represent these as vXf64 vbroadcast_loads and
a bitcast to vXi64. But we didn't have any isel patterns
looking for that.

This also allows us to remove or simplify some isel patterns that
were looking for bitcasted vbroadcast_loads.

llvm-svn: 373566

Some Driver tests relied on the default resource direcory having per-os per-arch
subdirectory layout, and when clang is built with `-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON`,
those test fail, because clang by default assumes per-target subdirectories.

Explicitly set `-resource-dir` flag to point to a tree with per-os per-arch layout.

See also: D45604, D62469

Differential Revision: https://reviews.llvm.org/D66981

Patch by Sergej Jaskiewicz <jaskiewiczs@icloud.com>.

llvm-svn: 373565

Summary:
This patch factors out File as an abstract base
class and moves most of its actual functionality into
a subclass called NativeFile.   In the next patch,
I'm going to be adding subclasses of File that
don't necessarily have any connection to actual OS files,
so they will not inherit from NativeFile.

This patch was split out as a prerequisite for
https://reviews.llvm.org/D68188

Reviewers: JDevlieghere, jasonmolenda, labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68317

llvm-svn: 373564

Summary:
Add new methods to SBDebugger to set IO files as SBFiles instead of
as FILE* streams.

In future commits, the FILE* methods will be deprecated and these
will become the primary way to set the debugger I/O streams.

Reviewers: JDevlieghere, jasonmolenda, labath

Reviewed By: labath

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68181

llvm-svn: 373563

Summary:
SBFile is a scripting API wrapper for lldb_private::File

This is the first step in a project to enable arbitrary python
io.IOBase file objects -- including those that override the read()
and write() methods -- to be used as the main debugger IOStreams.

Currently this is impossible because python file objects must first
be converted into FILE* streams by SWIG in order to be passed into
the debugger.

full prototype: https://github.com/smoofra/llvm-project/tree/files

Reviewers: JDevlieghere, jasonmolenda, zturner, jingham, labath

Reviewed By: labath

Subscribers: labath, mgorny, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D67793

llvm-svn: 373562

Sometimes it is useful to compile HIP device code to LLVM BC. It is not convenient to use clang -cc1 since
there are lots of options needed.

This patch allows clang driver to compile HIP device code to LLVM BC with -emit-llvm -c.

Differential Revision: https://reviews.llvm.org/D68284

llvm-svn: 373561

[X86] Add broadcast load folding patterns to NoVLX VPMULLQ/VPMAXSQ/VPMAXUQ/VPMINSQ/VPMINUQ patterns.

More fixes for PR36191.

llvm-svn: 373560

[X86] Remove a couple redundant isel patterns that look to have been copy/pasted from right above them. NFC

llvm-svn: 373559

llvm-svn: 373558

They break tests on (at least) macOS.

llvm-svn: 373556

Newer cmakes appear to be more flexible w.r.t object libraries. Convert to
a static library so that it works with older cmakes too

llvm-svn: 373555

llvm-svn: 373554

pointer-to-member call can't determine a callee.

We will have produced a diagnostic already if the callee is known to be
unevaluatable, and diagnosing here rejects valid code during potential
constant expression checking.

llvm-svn: 373553

It appears there are some issues with the hexagon toolchain, and also the file
path for the library file. If this doesn't fix the remaining breakages I will
attempt a revert.

llvm-svn: 373552

Summary:
This will handle expansion of C++ fragments in the declarative combiner
including custom predicates, and escapes into C++ to aid the migration
effort.

Reviewers: bogner, volkan

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68288

llvm-svn: 373551

llvm-svn: 373550

test/InterfaceStubs/object.cpp should have been deleted.

llvm-svn: 373549

Note that this only covers the language side of this feature. (The
library side has its own feature test macro.)

llvm-svn: 373548

For now, we restrict this support to use from within the standard
library implementation, since we're required to make parts of the
standard library that use placement new work, but not permitted to
make uses of placement new from user code work.

llvm-svn: 373547

std::allocator::{allocate,deallocate} in constant evaluation.

llvm-svn: 373546

llvm-svn: 373545

When SIFixSGPRCopies attempts to fix an illegal copy from vector to
scalar register it calls moveToVALU(). A copy from an agpr to sgpr
becomes a copy from agpr to agpr, which may result in the illegal
register class at a use of this copy.

Solution is to copy it always into a vgpr. This may result in a
subsequent copy into an agpr if that is what really needed, however
should not happen too often and likely will be folded later.

The opposite situation may not happen because an sgpr is always
illegal where agpr is legal, so such user instructions may not
exist.

Differential Revision: https://reviews.llvm.org/D68358

llvm-svn: 373544

This is unlikely to be the root cause for the windows bot failures but
it would explain the stack trace seen.

llvm-svn: 373543

https://rise4fun.com/Alive/8BY - valid for lshr+trunc+variable sext
https://rise4fun.com/Alive/7jk - the variable sext can be redundant

https://rise4fun.com/Alive/Qslu - 'exact'-ness of first shift can be preserver

https://rise4fun.com/Alive/IF63 - without trunc we could view this as
                                  more general "drop redundant mask before right-shift",
                                  but let's handle it here for now
https://rise4fun.com/Alive/iip - likewise, without trunc, variable sext can be redundant.

There's more patterns for sure - e.g. we can have 'lshr' as the final shift,
but that might be best handled by some more generic transform, e.g.
"drop redundant masking before right-shift" (PR42456)

I'm singling-out this sext patch because you can only extract
high bits with `*shr` (unlike abstract bit masking),
and i *know* this fold is wanted by existing code.

I don't believe there is much to review here,
so i'm gonna opt into post-review mode here.

https://bugs.llvm.org/show_bug.cgi?id=43523

llvm-svn: 373542

https://bugs.llvm.org/show_bug.cgi?id=43523

llvm-svn: 373541

Brings this struct in line with the RangeSpan class so they might
eventually be used by common template code for generating range/loc
lists with less duplicate code.

llvm-svn: 373540

Fixes the Android build breakage introduced in r373528.

llvm-svn: 373539

This patch enables end to end support for generating ELF interface stubs
directly from clang. Now the following:

clang -emit-interface-stubs -o libfoo.so a.cpp b.cpp c.cpp

will product an ELF binary with visible symbols populated. Visibility attributes
and -fvisibility can be used to control what gets populated.

* Adding ToolChain support for clang Driver IFS Merge Phase
* Implementing a default InterfaceStubs Merge clang Tool, used by ToolChain
* Adds support for the clang Driver to involve llvm-ifs on ifs files.
* Adds -emit-merged-ifs flag, to tell llvm-ifs to emit a merged ifs text file
  instead of the final object format (normally ELF)


Differential Revision: https://reviews.llvm.org/D63978

llvm-svn: 373538

bcopy is still widely used mainly for network apps. Sadly, LLVM has no optimizations for bcopy, but there are some for memmove. 
Since bcopy == memmove, it is profitable to transform bcopy to memmove and use current optimizations for memmove for free here.

llvm-svn: 373537

If the vselect result type needs to be split, it will try to
also try to split the condition if it happens to be a setcc.

With avx512 where k-registers are legal, its probably better
to just use a kshift to split the mask register.

llvm-svn: 373536

[LegalizeTypes] Check for already split condition before calilng SplitVecRes_SETCC in SplitRes_SELECT.

No point in manually splitting the SETCC if it was already done.

llvm-svn: 373535

llvm-svn: 373534

This is an effort to make RangeSpan and DebugLocStream::Entry more
similar to share code for their emission (to reuse the more complicated
code for using (& choosing when to use) base address selection entries,
etc).

It didn't seem like this struct was worth the complexity of
encapsulation - when the members could be initialized by the ctor to any
value (no validation) and the type is assignable (so there's no
mutability or other constraint being implemented by its interface).

llvm-svn: 373533

Speculative fix for Windows bot.

llvm-svn: 373532

The test fails to find the written file on Android.

llvm-svn: 373531

Should fix the current Windows buildbot failure.

llvm-svn: 373530

Summary:
All other stack trace callers assume that PC contains return address.
HWAsan already use GetNextInstructionPc in similar code.

PR43339

Reviewers: eugenis, kcc, jfb

Subscribers: dexonsmith, dberris, #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D68313

llvm-svn: 373529

llvm-svn: 373528

Summary:
This is the first of a series of patches extracted from a much bigger WIP
patch. It merely establishes the tblgen pass and the way empty combiner
helpers are declared and integrated into a combiner info.

The tablegen pass takes a -combiners option to select the combiner helper
that will be generated. This can be given multiple values to generate
multiple combiner helpers at once. Doing so helps to minimize parsing
overhead.

The reason for creating a GlobalISel subdirectory in utils/TableGen is that
there will be quite a lot of non-pass files (~15) by the time the patch
series is done.

Reviewers: volkan

Subscribers: mgorny, hiraditya, simoncook, Petar.Avramovic, s.egerton, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68286

llvm-svn: 373527