[all-commits] [llvm/llvm-project] a88539: [FuncSpec][NFC] Refactor finding specialisation op...

[Momchil Velikov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a8853924bd3c50deebfbf993c037257ccf9805f4
      https://github.com/llvm/llvm-project/commit/a8853924bd3c50deebfbf993c037257ccf9805f4
  Author: Momchil Velikov <momchil.velikov at arm.com>
  Date:   2022-10-26 (Wed, 26 Oct 2022)

  Changed paths:
    M llvm/lib/Transforms/IPO/FunctionSpecialization.cpp

  Log Message:
  -----------
  [FuncSpec][NFC] Refactor finding specialisation opportunities

This patch reorders the traversal of function call sites and function
formal parameters to:

* do various argument feasibility checks (`isArgumentInteresting` ) only once per argument, i.e. doing N-args checks instead of N-calls x N-args checks.

* do hash table lookups only once per call site, i.e. N-calls lookups/inserts instead of N-call x N-args lookups/inserts.

Reviewed By: ChuanqiXu, labrinea

Differential Revision: https://reviews.llvm.org/D135968