lorenzo chelini 4a7b56e6e7 [MLIR][Arith] Add denormal attribute to binary/unary operations (#112700) ...

Add support for denormal in the Arith dialect (binary and unary
operations).
Denormal are attached to every operation, and they can be of three
different
kinds:

1) ieee, denormal are preserved and processed as defined by IEEE 754
rules.

2) preserve sign, a mode where denormal numbers are flushed to zero, but
the
sign of the zero (+0 or -0) is preserved.

3) positive zero, a mode where all denormal numbers are flushed to
positive zero
(+0), ignoring the sign of the original number.

Denormal refers to both the operands and the result. Currently only
lowering for
ieee is supported.

2024-11-26 11:58:43 +01:00

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