Changes

[AMDGPU] Deduplicate VOP tablegen asm & ins

VOP3 and VOP DPP subroutines to generate input
operands and asm strings were essentially copy
pasted several times. They are deduplicated to
reduce the maintenance burden and allow faster
development.

Reviewed By: dp

Differential Revision: https://reviews.llvm.org/D94102

Change-Id: I76225eed3c33239d9573351e0c8a0abfad0146ea

[mlir] Add Python bindings for AffineExpr

This adds the Python bindings for AffineExpr and a couple of utility functions
to the C API. AffineExpr is a top-level context-owned object and is modeled
similarly to attributes and types. It is required, e.g., to build layout maps
of the built-in memref type.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D94225

[mlir] More Python bindings for AffineMap

Now that the bindings for AffineExpr have been added, add more bindings for
constructing and inspecting AffineMap that consists of AffineExprs.

Depends On D94225

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D94297

[mlir] Expose MemRef layout in Python bindings

This wasn't possible before because there was no support for affine expressions
as maps. Now that this support is available, provide the mechanism for
constructing maps with a layout and inspecting it.

Rework the `get` method on MemRefType in Python to avoid needing an explicit
memory space or layout map. Remove the `get_num_maps`, it is too low-level,
using the length of the now-avaiable pseudo-list of layout maps is more
pythonic.

Depends On D94297

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D94302

[flang][openxx][NFC] Remove duplicated function to check required clauses

Remove duplicated function to check for required clauses on a directive. This was
still there from the merging of OpenACC and OpenMP common semantic checks and it can now be
removed so we use only one function.

Reviewed By: sameeranjoshi

Differential Revision: https://reviews.llvm.org/D93575

-funique-internal-linkage-names appends a hex md5hash suffix to the symbol name which is not demangler friendly, convert it to decimal.

Please see D93747 for more context which tries to make linkage names of internal
linkage functions to be the uniqueified names. This causes a problem with gdb
because breaking using the demangled function name will not work if the new
uniqueified name cannot be demangled. The problem is the generated suffix which
is a mix of integers and letters which do not demangle. The demangler accepts
either all numbers or all letters. This patch simply converts the hash to decimal.

There is no loss of uniqueness by doing this as the precision is maintained.
The symbol names get longer by a few characters though.

Differential Revision: https://reviews.llvm.org/D94154

Introduce new quiet mode and new option handling for -print-changed.
Summary:
Introduce a new mode of operation for -print-changed that only reports
after a pass changes the IR with all of the other messages suppressed (ie,
no initial IR and no messages about ignored, filtered or non-modifying
passes).

The option processing for -print-changed is changed to take an optional
string indicating options for print-changed. Initially, the only option
supported is quiet (as described above). This new quiet mode is specified
with -print-changed=quiet while -print-changed will continue to function
in the same way. It is intended that there will be more options in the
future.

Author: Jamie Schmeiser <schmeise@ca.ibm.com>
Reviewed By: aeubanks (Arthur Eubanks)
Differential Revision: https://reviews.llvm.org/D92589

Fix minor build issue (NFC)

Change [x86] Fix tile register spill issue was causing problems for our build
using gcc-5.4.1

The problem was caused by this line:

for (const MachineInstr &MI : make_range(MIS.begin(), MI))

where MI was previously defined as a MachineBasicBlock iterator.

Differential Revision: https://reviews.llvm.org/D94415

[SystemZ][z/OS] Fix Permission denied pattern matching

On z/OS, the error message "EDC5111I Permission denied." is not matched correctly in lit tests. This patch updates the check expression to match successfully.

Reviewed By: fanbo-meng

Differential Revision: https://reviews.llvm.org/D94432

[mlir] Add structural conversion to async dialect lowering.

Lowering of async dialect uses a fixed type converter and therefore does not support lowering non-standard types.

This revision adds a structural conversion so that non-standard types in `!async.value`s can be lowered to LLVM before lowering the async dialect itself.

Reviewed By: ezhulenev

Differential Revision: https://reviews.llvm.org/D94404