[all-commits] [llvm/llvm-project] e1b9d0: [MLIR][Math] Fix math.ceil expansion to avoid unde...

[Hank via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e1b9d033cdbd957a6a4adb684340298e98b1b06a
      https://github.com/llvm/llvm-project/commit/e1b9d033cdbd957a6a4adb684340298e98b1b06a
  Author: Hank <49036880+hankluo6 at users.noreply.github.com>
  Date:   2026-02-11 (Wed, 11 Feb 2026)

  Changed paths:
    M mlir/lib/Dialect/Math/Transforms/ExpandOps.cpp
    M mlir/test/Dialect/Math/expand-math.mlir

  Log Message:
  -----------
  [MLIR][Math] Fix math.ceil expansion to avoid undefined behavior on Inf/NaN (#170028)

Fixes #151786

The original `ceilf` expansion lowers to `fptosi`, which produces poison
for Inf, and any subsequent use leads to undefined behavior. This patch
adds a safe path, similar to the existing `round` expansion, for large
or special inputs and avoids the UB.



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