[all-commits] [llvm/llvm-project] 730f49: [mlir][arith] Improve `truncf` folding (#80206)

[Jakub Kuderski via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 730f498c961f29691a605028f9b1cd6d9e232460
      https://github.com/llvm/llvm-project/commit/730f498c961f29691a605028f9b1cd6d9e232460
  Author: Jakub Kuderski <jakub at nod-labs.com>
  Date:   2024-01-31 (Wed, 31 Jan 2024)

  Changed paths:
    M mlir/lib/Dialect/Arith/IR/ArithOps.cpp
    M mlir/test/Dialect/Arith/canonicalize.mlir

  Log Message:
  -----------
  [mlir][arith] Improve `truncf` folding (#80206)

* Use APFloat conversion function instead of going through double to
check if fold results in information loss.
* Support folding vector constants.