Jakob Stoklund Olesen 010e9bb778 Store sub-class lists as a bit vector. ...

This uses less memory and it reduces the complexity of sub-class
operations:

- hasSubClassEq() and friends become O(1) instead of O(N).

- getCommonSubClass() becomes O(N) instead of O(N^2).

In the future, TableGen will infer register classes.  This makes it
cheap to add them.

llvm-svn: 140898

2011-09-30 22:19:07 +00:00

..

llvm

Store sub-class lists as a bit vector.

2011-09-30 22:19:07 +00:00

llvm-c

Add some useful accessors to c++ api that appear to be missing from the c api

2011-08-23 20:27:46 +00:00