[PATCH] D40041: Use TempFile in lto caching

[Rafael Ávila de Espíndola via Phabricator via llvm-commits]

rafael created this revision.
Herald added subscribers: inglorion, mehdi_amini.

This requires a small change to TempFile: allowing a discard after a failed keep.

With this the cache now handles signals and reuses a fd instead of reopening the file.


https://reviews.llvm.org/D40041

Files:
  lib/LTO/Caching.cpp
  lib/Support/Path.cpp

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