[all-commits] [llvm/llvm-project] 8112a4: clang/Modules: Bring back optimization lost in 31e...

[Duncan P. N. Exon Smith via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 8112a423a8ede9bce64b6553e6451bf10995105c
      https://github.com/llvm/llvm-project/commit/8112a423a8ede9bce64b6553e6451bf10995105c
  Author: Duncan P. N. Exon Smith <dexonsmith at apple.com>
  Date:   2019-11-04 (Mon, 04 Nov 2019)

  Changed paths:
    M clang/include/clang/Lex/ModuleMap.h
    M clang/lib/Frontend/CompilerInstance.cpp

  Log Message:
  -----------
  clang/Modules: Bring back optimization lost in 31e14f41a21f

31e14f41a21f9016050a20f07d5da03db2e8c13e accidentally dropped caching of
failed module loads.  This brings it back by making
ModuleMap::getCachedModuleLoad return an Optional.