[PATCH] D37051: Model cache size and associativity in TargetTransformInfo

[Tobias Grosser via Phabricator via llvm-commits]

grosser updated this revision to Diff 112393.
grosser added a comment.

Make return values optional to be able to distinguish between unknown cache
size and no cache.

We use Optional in the very same way to indicate clearly that no associativity
has been specified.


https://reviews.llvm.org/D37051

Files:
  include/llvm/Analysis/TargetTransformInfo.h
  include/llvm/Analysis/TargetTransformInfoImpl.h
  lib/Analysis/TargetTransformInfo.cpp
  lib/Target/X86/X86TargetTransformInfo.cpp
  lib/Target/X86/X86TargetTransformInfo.h

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