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3 Commits

Author SHA1 Message Date
Craig Topper 3434b4354a Revert accidental commit of a pruned testcase from r150360. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150361 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-13 04:33:33 +00:00
Craig Topper 2dcd718c13 Update CanXFormVExtractWithShuffleIntoLoad to ensure bitcasts of loads only have one use. Matches DAGCombiner and prevents vector_shuffles from reaching isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150360 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-13 04:30:38 +00:00
Nadav Rotem ed9b934f65 Fix 9267; Add vector zext support. 
The DAGCombiner folds the zext into complex load instructions. This patch
prevents this optimization on vectors since none of the supported targets
knows how to perform load+vector_zext in one instruction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126080 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-20 12:37:50 +00:00