[PATCH] D21113: Add support for case-insensitive header lookup

[Hans Wennborg via cfe-commits]

hans added a comment.

In http://reviews.llvm.org/D21113#452673, @thakis wrote:

> Not sure if we want a flag that adds 50% overhead, no matter how convenient it might be :-/


I now have a version of the patch that caches directory contents that it lists:

  real    2m31.461s
  user    68m42.090s
  sys     1m51.707s

While the sys time is a little bit higher, real time is on par with putting the SDK on FAT, so I think this is still worth pursuing. I need to clean up the patch and figure out how to invalidate the cache after module things are written, though.


http://reviews.llvm.org/D21113