[all-commits] [llvm/llvm-project] 8750d5: [X86][AutoUpgrade] Simplify string management in U...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 8750d54cea31751fbf1dbcb03b7569493769fdef
      https://github.com/llvm/llvm-project/commit/8750d54cea31751fbf1dbcb03b7569493769fdef
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-08-19 (Wed, 19 Aug 2020)

  Changed paths:
    M llvm/lib/IR/AutoUpgrade.cpp

  Log Message:
  -----------
  [X86][AutoUpgrade] Simplify string management in UpgradeDataLayoutString a bit. NFCI

We don't need a std::string for a literal string, we can use a
StringRef.

The addition of StringRefs produces a Twine that we can just call
str() without converting to a SmallString ourselves. Twine will
do that internally.