[mlir][python] improve usability of Python affine construct bindings

- Provide the operator overloads for constructing (semi-)affine expressions in
Python by combining existing expressions with co

[mlir][python] improve usability of Python affine construct bindings

- Provide the operator overloads for constructing (semi-)affine expressions in
Python by combining existing expressions with constants.
- Make AffineExpr, AffineMap and IntegerSet hashable in Python.
- Expose the AffineExpr composition functionality.

Reviewed By: gysit, aoyal

Differential Revision: https://reviews.llvm.org/D113010

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[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
s

[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

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[mlir][CAPI] Convert the rest of the API int -> bool.

* Follows on https://reviews.llvm.org/D92193
* I had a mid-air collision with some additional occurrences and then noticed that there were a lot

[mlir][CAPI] Convert the rest of the API int -> bool.

* Follows on https://reviews.llvm.org/D92193
* I had a mid-air collision with some additional occurrences and then noticed that there were a lot more. Think I got them all.

Differential Revision: https://reviews.llvm.org/D92292

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Switch from C-style comments `/* ... */` to C++ style `//` (NFC)

This is mostly a scripted update, it may not be perfect.

function replace() {
FROM=$1
TO=$2
git grep "$FROM" $REPO_PATH |cut -

Switch from C-style comments `/* ... */` to C++ style `//` (NFC)

This is mostly a scripted update, it may not be perfect.

function replace() {
FROM=$1
TO=$2
git grep "$FROM" $REPO_PATH |cut -f 1 -d : | sort -u | \
while read file; do
sed -i "s#$FROM#$TO#" $file ;
done
}

replace '|\*===----------------------------------------------------------------------===\*|$' '//===----------------------------------------------------------------------===//'
replace '^/\* =' '//=='
replace '^/\*=' '//='
replace '^\\\*=' '//='
replace '^|\*' '//'
replace ' \*|$' ''
replace '=\*\\$' '=//'
replace '== \*/$' '===//'
replace '==\*/$' '==//'
replace '^/\*\*\(.*\)\*/$' '///\1'
replace '^/\*\(.*\)\*/$' '//\1'
replace '//============================================================================//' '//===----------------------------------------------------------------------===//'

Differential Revision: https://reviews.llvm.org/D90732

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Switch the CallbackOstream wrapper in the MLIR C API to an Unbuffered stream

This delegate the control of the buffering to the user of the API. This
seems like a safer option as messages are immedia

Switch the CallbackOstream wrapper in the MLIR C API to an Unbuffered stream

This delegate the control of the buffering to the user of the API. This
seems like a safer option as messages are immediately propagated to the
user, which may lead to less surprising behavior during debugging for
instance.
In terms of performance, a user can add a buffered stream on the other
side of the callback.

Differential Revision: https://reviews.llvm.org/D90726

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[mlir] Expose affine expression to C API

This patch provides C API for MLIR affine expression.
- Implement C API for methods of AffineExpr class.
- Implement C API for methods of derived classes (Af

[mlir] Expose affine expression to C API

This patch provides C API for MLIR affine expression.
- Implement C API for methods of AffineExpr class.
- Implement C API for methods of derived classes (AffineBinaryOpExpr, AffineDimExpr, AffineSymbolExpr, and AffineConstantExpr).

Differential Revision: https://reviews.llvm.org/D89856

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