[PATCH] D75372: [Support] Improve Windows widenPath and add support for long UNC paths

[Andrew Ng via Phabricator via llvm-commits]

andrewng created this revision.
andrewng added reviewers: probinson, rnk, hans.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

Check the path length limit against the length of the UTF-16 version of
the input rather than the UTF-8 equivalent, as the UTF-16 length may be
shorter. Move widenPath from the llvm::sys::path namespace to the
llvm::sys::fs namespace as this seems more appropriate. Only use the
reduced path length limit for create directory. Canonicalize using
sys::path::remove_dots().


https://reviews.llvm.org/D75372

Files:
  llvm/include/llvm/Support/FileSystem.h
  llvm/include/llvm/Support/Path.h
  llvm/lib/Support/Windows/Path.inc
  llvm/lib/Support/Windows/Program.inc
  llvm/unittests/Support/Path.cpp

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