[all-commits] [llvm/llvm-project] b27af8: [IndVarSimplify] Refactor `handleFloatingPointIV`, ...

[Antonio Frighetto via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b27af83120b32a4b8312ddf1e6317271122769e4
      https://github.com/llvm/llvm-project/commit/b27af83120b32a4b8312ddf1e6317271122769e4
  Author: Antonio Frighetto <me at antoniofrighetto.com>
  Date:   2025-11-28 (Fri, 28 Nov 2025)

  Changed paths:
    M llvm/lib/Transforms/Scalar/IndVarSimplify.cpp

  Log Message:
  -----------
  [IndVarSimplify] Refactor `handleFloatingPointIV`, modernize pass (NFC)

`handleFloatingPointIV` is now abstracted out into different routines,
particularly:
- `maybeFloatingPointRecurrence` which establishes whether we handle a
  floating-point iv recurrence;
- `tryConvertToIntegerIV` which attempts to convert the fp start, step
  and exit values into integer ones;
- `canonicalizeToIntegerIV` which rewrites the recurrence.

Minor opportunity to modernize the code where possible.



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