[all-commits] [llvm/llvm-project] 1d0fa7: [DAGCombiner] restrict store merge of truncs to ea...

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  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 1d0fa798248f2d4e7a3b5b6d6465edb41d13354d
      https://github.com/llvm/llvm-project/commit/1d0fa798248f2d4e7a3b5b6d6465edb41d13354d
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2020-08-23 (Sun, 23 Aug 2020)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

  Log Message:
  -----------
  [DAGCombiner] restrict store merge of truncs to early combining

The pattern matching does not account for truncating stores,
so it is unlikely to work at later stages. So we are likely
wasting compile-time with no hope of improvement by running
this later.