[PATCH] D83806: [flang] Tuning up binary->decimal conversion

[Peter Klausler via Phabricator via llvm-commits]

klausler created this revision.
klausler added reviewers: sscalpone, tskeith, PeteSteinfeld.
klausler added a project: Flang.
Herald added a reviewer: jdoerfert.
Herald added a reviewer: DavidTruby.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Use short division of big-radix values by powers of two when
converting values with negative unbiased exponents rather than
multiplication by smaller powers of five; this reduces the overall
outer iteration count. This change is a win across the entire range
of inputs.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83806

Files:
  flang/include/flang/Decimal/decimal.h
  flang/lib/Decimal/big-radix-floating-point.h
  flang/lib/Decimal/binary-to-decimal.cpp

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