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Author SHA1 Message Date
Chad Rosier
0e7f08bde5 TargetLoweringOpt is a struct used by DAGCombine, not a pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133062 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-15 16:48:02 +00:00
Chad Rosier
92bcd96bbc When pattern matching during instruction selection make sure shl x,1 is not 
converted to add x,x if x is a undef.  add undef, undef does not guarantee
that the resulting low order bit is zero.
Fixes <rdar://problem/9453156> and <rdar://problem/9487392>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133022 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-14 22:29:10 +00:00