[all-commits] [llvm/llvm-project] 4ee8ae: [flang] Implement isnan and ieee_is_nan intrinsics

[David Truby via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4ee8aef4de45a87d2bbc86bfdd052b51599c54c9
      https://github.com/llvm/llvm-project/commit/4ee8aef4de45a87d2bbc86bfdd052b51599c54c9
  Author: David Truby <david.truby at arm.com>
  Date:   2023-03-01 (Wed, 01 Mar 2023)

  Changed paths:
    M flang/lib/Evaluate/fold-logical.cpp
    M flang/lib/Optimizer/Builder/IntrinsicCall.cpp
    A flang/test/Lower/Intrinsics/isnan.f90

  Log Message:
  -----------
  [flang] Implement isnan and ieee_is_nan intrinsics

To implement these we call the LLVM intrinsic is.fpclass indicating that
we are checking for either a quiet or signalling NaN.

Differential Revision: https://reviews.llvm.org/D144649