[all-commits] [llvm/llvm-project] f8ad73: [Attributor] Use existing `returned` information b...

[Johannes Doerfert via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: f8ad735729bf8892d71863b4da44ca2dde24d778
      https://github.com/llvm/llvm-project/commit/f8ad735729bf8892d71863b4da44ca2dde24d778
  Author: Johannes Doerfert <johannes at jdoerfert.de>
  Date:   2020-02-19 (Wed, 19 Feb 2020)

  Changed paths:
    M llvm/lib/Transforms/IPO/Attributor.cpp
    M llvm/test/Transforms/Attributor/returned.ll

  Log Message:
  -----------
  [Attributor] Use existing `returned` information better

We can look through calls with `returned` argument attributes when we
collect subsuming positions. This allows us to get existing attributes
from more places.