[PATCH] D102736: Fix tmp files being left on Windows builds.

[Amy Huang via Phabricator via cfe-commits]

akhuang created this revision.
akhuang added reviewers: rnk, aganea, amccarth.
Herald added subscribers: dexonsmith, hiraditya.
akhuang requested review of this revision.
Herald added projects: clang, LLVM.
Herald added subscribers: llvm-commits, cfe-commits.

Clang writes object files by first writing to a .tmp file and then
renaming to the final .obj name. On Windows, if a compile is killed
partway through the .tmp files don't get deleted.

Currently it seems like `RemoveFileOnSignal` takes care of deleting the
tmp files on Linux, but on Windows we need to call
`setDeleteDisposition` on tmp files so that they are deleted when
closed.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102736

Files:
  clang/include/clang/Frontend/CompilerInstance.h
  clang/lib/Frontend/CompilerInstance.cpp
  llvm/include/llvm/Support/FileSystem.h
  llvm/lib/Support/Path.cpp
  llvm/lib/Support/Windows/Path.inc

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