[all-commits] [llvm/llvm-project] 0b52aa: [flang] Unsupported rounding modes (#128240)

[vdonaldson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0b52aa1bdbc7416592e9c81d9a44ce411c21e081
      https://github.com/llvm/llvm-project/commit/0b52aa1bdbc7416592e9c81d9a44ce411c21e081
  Author: vdonaldson <37090318+vdonaldson at users.noreply.github.com>
  Date:   2025-02-24 (Mon, 24 Feb 2025)

  Changed paths:
    M flang/docs/Extensions.md
    M flang/lib/Optimizer/Builder/IntrinsicCall.cpp
    M flang/test/Lower/Intrinsics/ieee_rint_int.f90
    M flang/test/Lower/Intrinsics/ieee_rounding.f90

  Log Message:
  -----------
  [flang] Unsupported rounding modes (#128240)

Two new ieee_round_type values were added in f18 beyond the four values
defined in f03 and f08: ieee_away and ieee_other. Contemporary hardware
typically does not have support for these rounding modes, so flang does
not support them. ieee_support_rounding calls for these values return
false. Current generated code handles some attempts to set the rounding
mode to one of these unsupported values by setting the mode to
ieee_nearest. Update the code to explicitly do this in all cases.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications