Integer type in Std dialect is signless so we should be checking
for signless integer type instead of signed integer type in EDSC.

Differential Revision: https://reviews.llvm.org/D78144

This is a no-op because it is set later on unconditionally again, but
it's far less confusing this way and consistent with how the setters
are initialized.

llvm-dwarfdump: Don't try to parse a debug_loclist contribution if this CU has no DW_AT_loclists_base

llvm-dwarfdump was trying to parse debug_loclists even in the absence of
a loclists_base if there was a loclists section at all.

Summary:
The 'Clang 10' boxes should be green since Clang 10 has been released.

Reviewers: rsmith, aaron.ballman

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D78068

Previously, getWithOffset() would drop the offset if the base was null.
Because of this, MachineMemOperand would return the wrong result from
getAlign() in these cases.  MachineMemOperand stores the alignment of
the pointer without the offset.

A bunch of MIR tests changed because we print the offset now.

Split off from D77687.

Differential Revision: https://reviews.llvm.org/D78049

Summary:
Continuing from D77285, the external interfaces implemented by
`WasmDump.cpp` are now declared in `WasmDump.h` and moved into the
`llvm::objdump` namespace.

Reviewers: jhenderson, MaskRay, DiggerLin, jasonliu, daltenty

Reviewed By: jhenderson, MaskRay

Differential Revision: https://reviews.llvm.org/D77990

This symbol is defined in avr-gcc. Because AVR normally uses the ELF
format, define the symbol unconditionally.

This patch is needed to get Clang to compile compiler-rt.

Differential Revision: https://reviews.llvm.org/D78117

Now that no more utilities exist within, this file can be deleted.

Differential Revision: https://reviews.llvm.org/D78079

This class implements a switch-like dispatch statement for a value of 'T' using dyn_cast functionality. Each `Case<T>` takes a callable to be invoked if the root value isa<T>, the callable is invoked with the result of dyn_cast<T>() as a parameter.

Differential Revision: https://reviews.llvm.org/D78070

These have proved incredibly useful for interleaving values between a range w.r.t to streams. After this revision, the mlir/Support/STLExtras.h is empty. A followup revision will remove it from the tree.

Differential Revision: https://reviews.llvm.org/D78067

This revision moves the various range utilities present in MLIR to LLVM to enable greater reuse. This revision moves the following utilities:

* indexed_accessor_*
This is set of utility iterator/range base classes that allow for building a range class where the iterators are represented by an object+index pair.

* make_second_range
Given a range of pairs, returns a range iterating over the `second` elements.

* hasSingleElement
Returns if the given range has 1 element. size() == 1 checks end up being very common, but size() is not always O(1) (e.g., ilist). This method provides O(1) checks for those cases.

Differential Revision: https://reviews.llvm.org/D78064

This revision moves several type_trait utilities from MLIR into LLVM. Namely, this revision adds:
is_detected - This matches the experimental std::is_detected
is_invocable - This matches the c++17 std::is_invocable
function_traits - A utility traits class for getting the argument and result types of a callable type

Differential Revision: https://reviews.llvm.org/D78059

This revision adds a DenseMapInfo overload for std::tuples whose elements all have a DenseMapInfo. The implementation is similar to that of std::pair, and has been used within MLIR for over a year.

Differential Revision: https://reviews.llvm.org/D78057

Summary:
Also,
- add IndexTensor to OpBase.td
- fix typo in the op name. It was mistakenly `to_tensor` instead of
  `to_extent_tensor`.

Differential Revision: https://reviews.llvm.org/D78149

This should make both static and dynamic NewPM plugins work with LTO.
And as a bonus, it makes static linking of OldPM plugins more reliable
for plugins with both an OldPM and NewPM interface.

I only implemented the command-line flag to specify NewPM plugins in
llvm-lto2, to show it works. Support can be added for other tools later.

Differential Revision: https://reviews.llvm.org/D76866

Reviewers: dblaikie, davidxl, craig.topper

Subscribers: arsenm, dschuff, nemanjai, jvesely, nhaehnle, sbc100, jgravelle-google, hiraditya, aheejin, kbarton, kerbowa, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78142

Use a RAII object to manage the lifetime of the reproducer
instrumentation data.

Originally committed as 416fa772
Reverted (due to buildbot failure - breaking lldb) in 7a45aeac.

I still can't seem to build lldb locally, but Pavel Labath has kindly
provided a potential fix to preserve the old behavior in lldb by
registering a simple recoverable error handler there that prints to the
desired stream in lldb, rather than stderr.

The inversePermutation method returns a null map on failure. Update
uses of this method within Linalg to handle this. In LinalgToLoops the
null return value was used to emit scalar code. Modify that to return
failure, and emit scalar implementation when affine map is "empty",
i.e. 1 dims, 0 symbols and no result exprs.

Differential Revision: https://reviews.llvm.org/D77964

Prompted by discussion on https://reviews.llvm.org/D78148.

Reviewers: efriedma, sdesmalen, spatel, eugenis, chandlerc

Reviewed By: efriedma

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

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77896

Summary:
This PR adds `canCreatePoison(Instruction *I)` which returns true if `I` can generate poison from non-poison
operands.

Reviewers: spatel, nikic, lebedev.ri

Reviewed By: spatel

Subscribers: hiraditya, llvm-commits, regehr, nlopes

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77890

Summary:
wasm-ld requires --shared-memory to be passed when the atomics feature
is enabled because historically atomic operations were only valid with
shared memories. This change relaxes that requirement for when
building relocatable objects because their memories are not
meaningful. This technically maintains the validity of object files
because the threads spec now allows atomic operations with unshared
memories, although we don't support that elsewhere in the tools yet.

This fixes and Emscripten build issue reported at
https://bugs.chromium.org/p/webp/issues/detail?id=463.

Reviewers: sbc100

Subscribers: dschuff, jgravelle-google, aheejin, sunfish, jfb, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78072

Reviewers: efriedma, sdesmalen, RKSimon, majnemer

Reviewed By: majnemer

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

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77897

They end up as .init_array sections and those need to be writable,
otherwise bad merging will happen.

Reviewers: efriedma

Reviewed By: efriedma

Subscribers: tschuett, rkruppe, psnobl, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77903

Fixes: https://bugs.llvm.org/show_bug.cgi?id=45362

Differential Revision: https://reviews.llvm.org/D77115

This is useful when replaying tests after the fact and the directories
don't exist anymore.

Summary:
This patch fix the following issues in InstCombiner::visitGetElementPtrInst

    1. Skip for scalable type if transformation requires fixed size number of
    vector element.
    2. Skip for scalable type if transformation relies on compile-time known type
    alloc size.
    3. Use VectorType::getElementCount when scalable property is used to construct
    new VectorType.
    4. Use TypeSize::getKnownMinSize when minimal size of a scalable type is valid to determine GEP 'inbounds'.
    5. Explicitly call TypeSize::getFixedSize to avoid implicit type conversion to uint64_t.

Reviewers: sdesmalen, efriedma, spatel, ctetreau

Reviewed By: efriedma

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

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D78081

Summary:
Removing the Test prefix from the file name and its usages. The standard is using only Test as a suffix.
This was correctly pointed out in https://reviews.llvm.org/D77444.

Reviewers: labath, clayborg

Subscribers: mgorny, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D77878

Differential Revision: https://reviews.llvm.org/D78140

This can be useful when the CI jobs don't have internet access.

This is the widen mask element sibling to D76844.

shuf (bitcast X), undef, Mask --> bitcast X'

http://volta.cs.utah.edu:8080/z/4dt3V8

With this patch, .verify.cpp tests explicitly require clang-verify, but
no other test types require clang-verify out of the box. This will allow
making several .fail.cpp tests that don't have any clang-verify markup
to be just .compile.fail.cpp tests, which in turn should allow removing
a long standing workaround that requires parsing tests to detect whether
they have any clang-verify markup in them.

This allows AntiDepBreaker to be used in target specific postRA
scheduler.

Differential Revision: https://reviews.llvm.org/D78047