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Author SHA1 Message Date
Duncan Sands
6dc91253ab The most common simplification missed by instsimplify in unoptimized bitcode 
is "X != 0 -> X" when X is a boolean.  This occurs a lot because of the way
llvm-gcc converts gcc's conditional expressions.  Add this, and a few other
similar transforms for completeness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123372 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-13 08:56:29 +00:00
Duncan Sands
07f30fbd73 While I don't think any later transforms can fire, it seems cleaner to 
not assume this (for example in case more transforms get added below
it).  Suggested by Frits van Bommel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122332 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 15:03:43 +00:00