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Commit 095a7fe6 authored by Simon Pilgrim's avatar Simon Pilgrim
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[AARCH64] Improve vector popcnt lowering with ADDLP 

AARCH64 equivalent to D53257 - uses widening pairwise adds on vXi8 CTPOP to support i16/i32/i64 vectors.

This is a blocker for generic vector CTPOP expansion (P32655) - this will remove the aarch64 diff from D53258.

Differential Revision: https://reviews.llvm.org/D53259

llvm-svn: 344554
parent 09fcbbd8
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