Commit Graph

3 Commits

Author SHA1 Message Date
Chris Lattner 6b657aed33 Enhance a bunch of transformations in instcombine to start generating
exact/nsw/nuw shifts and have instcombine infer them when it can prove
that the relevant properties are true for a given shift without them.

Also, a variety of refactoring to use the new patternmatch logic thrown
in for good luck.  I believe that this takes care of a bunch of related
code quality issues attached to PR8862.

llvm-svn: 125267
2011-02-10 05:36:31 +00:00
Chris Lattner 4ca1981e82 merge sext-2 into sext.ll
llvm-svn: 90293
2009-12-02 05:34:35 +00:00
Chris Lattner 0a12a8f9fe rename test
llvm-svn: 90292
2009-12-02 05:32:33 +00:00