Simon Pilgrim 5c63586489 [DAGCombiner] Extending pattern detection for vector shuffle.
If all the operands of a BUILD_VECTOR extract elements from same vector then split the vector efficiently based on the maximum vector access index.

Committed on behalf of @jbhateja (Jatin Bhateja)

Differential Revision: https://reviews.llvm.org/D35788

llvm-svn: 310058
2017-08-04 12:46:35 +00:00
..