Zvi Rackover d7a1c334ce DAGCombine: Combine BUILD_VECTOR to TRUNCATE ... Summary: Add a combine for creating a truncate to replace a build_vector composed of extracts with indices that form a stride-2^N series. Example: v8i32 V = ... v4i32 build_vector((extract_elt V, 0), (extract_elt V, 2), (extract_elt V, 4), (extract_elt V, 6)) --> v4i32 truncate (bitcast V to v4i64) Related discussion in llvm-dev about canonicalizing shuffles to truncates in LLVM IR: http://lists.llvm.org/pipermail/llvm-dev/2017-January/108936.html. Reviewers: spatel, RKSimon, efriedma, igorb, craig.topper, wolfgangp, delena Reviewed By: delena Subscribers: guyblank, delena, javed.absar, llvm-commits Differential Revision: https://reviews.llvm.org/D34077 llvm-svn: 307036		2017-07-03 15:47:40 +00:00
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llvm	DAGCombine: Combine BUILD_VECTOR to TRUNCATE	2017-07-03 15:47:40 +00:00
llvm-c	Remove the BBVectorize pass.	2017-06-30 07:09:08 +00:00