[all-commits] [llvm/llvm-project] f45723: [flang][runtime] Fix RU/RD results when rounding t...

[Peter Klausler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f45723cded56b1e66b572fba0b71d117db6caa2e
      https://github.com/llvm/llvm-project/commit/f45723cded56b1e66b572fba0b71d117db6caa2e
  Author: Peter Klausler <35819229+klausler at users.noreply.github.com>
  Date:   2023-12-26 (Tue, 26 Dec 2023)

  Changed paths:
    M flang/lib/Decimal/decimal-to-binary.cpp
    M flang/unittests/Runtime/NumericalFormatTest.cpp

  Log Message:
  -----------
  [flang][runtime] Fix RU/RD results when rounding to least nonzero (#75878)

When rounding what otherwise would have been a result that underflowed
to zero up (RU) or down (RD) to the least magnitude nonzero subnormal
number, ensure that the original exponent value doesn't perturb the
result.