Chandler Carruth 1e05bd9e71 Introduce a generic interface for querying an operation's expected ...

lowered cost.

Currently, this is a direct port of the logic implementing
isInstructionFree in CodeMetrics. The hope is that the interface can be
improved (f.ex. supporting un-formed instruction queries) and the
implementation abstracted so that as we have test cases and target
knowledge we can expose increasingly accurate heuristics to clients.

I'll start switching existing consumers over and kill off the routine in
CodeMetrics in subsequent commits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172998 91177308-0d34-0410-b5e6-96231b3b80d8

2013-01-21 01:27:39 +00:00

..

llvm

Introduce a generic interface for querying an operation's expected

2013-01-21 01:27:39 +00:00

llvm-c

Fix include guards so they exactly match file names.

2013-01-10 00:45:19 +00:00