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3 Commits

Author SHA1 Message Date
Chris Lattner
09987f73f6 allow this to work on linux hosts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92407 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-02 00:22:15 +00:00
Chris Lattner
133ce871df Teach codegen to handle: 
(X != null) | (Y != null) --> (X|Y) != 0
 (X == null) & (Y == null) --> (X|Y) == 0

so that instcombine can stop doing this for pointers.  This is part of PR3351,
which is a case where instcombine doing this for pointers (inserting ptrtoint)
is pessimizing code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92406 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-02 00:00:03 +00:00
Chris Lattner
aac00392c3 rename file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92405 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-01 23:55:04 +00:00