[all-commits] [llvm/llvm-project] 1e3c63: [MLIR] Extend floating point parsing support (#90442)

[orbiri via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1e3c630fd1e868c38a2ef6dab0be80bc8f65c4a1
      https://github.com/llvm/llvm-project/commit/1e3c630fd1e868c38a2ef6dab0be80bc8f65c4a1
  Author: orbiri <orzivh at gmail.com>
  Date:   2024-05-04 (Sat, 04 May 2024)

  Changed paths:
    M mlir/include/mlir/IR/OpImplementation.h
    M mlir/lib/AsmParser/AsmParserImpl.h
    M mlir/lib/AsmParser/Parser.cpp
    A mlir/test/IR/custom-float-attr-roundtrip.mlir
    M mlir/test/IR/parser.mlir
    M mlir/test/lib/Dialect/Test/TestAttrDefs.td
    M mlir/test/lib/Dialect/Test/TestAttributes.cpp

  Log Message:
  -----------
  [MLIR] Extend floating point parsing support (#90442)

Parsing support for floating point types was missing a few features:
1. Parsing floating point attributes from integer literals was supported
only for types with bitwidth smaller or equal to 64.
2. Downstream users could not use `AsmParser::parseFloat` to parse float
types which are printed as integer literals.

This commit addresses both these points. It extends
`Parser::parseFloatFromIntegerLiteral` to support arbitrary bitwidth,
and exposes a new API to parse arbitrary floating point given an
fltSemantics as input. The usage of this new API is introduced in the
Test Dialect.



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