Commit Graph

2 Commits

Author SHA1 Message Date
Manman Ren 16649b0107 TBAA: remove !tbaa from testing cases if not used.
This will make it easier to turn on struct-path aware TBAA since the metadata
format will change.

llvm-svn: 180935
2013-05-02 18:11:35 +00:00
Nadav Rotem ab3e698ee9 Add support for reverse pointer induction variables. These are loops that contain pointers that count backwards.
For example, this is the hot loop in BZIP:

  do {
    m = *--p;
    *p = ( ... );
  } while (--n);

llvm-svn: 173219
2013-01-23 01:35:00 +00:00