[all-commits] [llvm/llvm-project] 606a99: [flang] Fix SCALE() folding with big scale factors...

[Peter Klausler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 606a997a3cb83437e1aeef9fee55144863b0ad76
      https://github.com/llvm/llvm-project/commit/606a997a3cb83437e1aeef9fee55144863b0ad76
  Author: Peter Klausler <35819229+klausler at users.noreply.github.com>
  Date:   2024-03-18 (Mon, 18 Mar 2024)

  Changed paths:
    M flang/include/flang/Evaluate/real.h
    M flang/test/Evaluate/fold-scale.f90

  Log Message:
  -----------
  [flang] Fix SCALE() folding with big scale factors (#85576)

The folding of the SCALE() intrinsic function is implemented via
multiplication by a power of two; this simplifies handling of
exceptional cases. But sometimes scaling by a power of two requires an
exponent larger or smaller than a floating-point format can represent,
and two multiplications are required.



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