[all-commits] [llvm/llvm-project] 279a65: [mlir][math] lower rsqrt to sqrt + fdiv (#91344)

[Corentin Ferry via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 279a659e9772e48d95ad7d81f6deb00ee31e35e1
      https://github.com/llvm/llvm-project/commit/279a659e9772e48d95ad7d81f6deb00ee31e35e1
  Author: Corentin Ferry <corentin.ferry at amd.com>
  Date:   2024-05-13 (Mon, 13 May 2024)

  Changed paths:
    M mlir/include/mlir/Dialect/Math/Transforms/Passes.h
    M mlir/lib/Dialect/Math/Transforms/ExpandPatterns.cpp
    M mlir/test/Dialect/Math/expand-math.mlir
    M mlir/test/lib/Dialect/Math/TestExpandMath.cpp
    M mlir/test/mlir-cpu-runner/test-expand-math-approx.mlir

  Log Message:
  -----------
  [mlir][math] lower rsqrt to sqrt + fdiv (#91344)

This commit creates an expansion pattern to lower math.rsqrt(x) into
fdiv(1, sqrt(x)).



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