[all-commits] [llvm/llvm-project] a8ae41: [SelectionDAGBuilder] Save iterator to avoid secon...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a8ae41fb518768fcc385b31fa1b16b20817cc1e7
      https://github.com/llvm/llvm-project/commit/a8ae41fb518768fcc385b31fa1b16b20817cc1e7
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2021-08-10 (Tue, 10 Aug 2021)

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

  Log Message:
  -----------
  [SelectionDAGBuilder] Save iterator to avoid second DenseMap lookup. NFC

We were calling find and then using operator[]. Instead keep the
iterator from find and use it to get the value.

Just happened to notice while investigating how we decide what extends
to use between basic blocks.