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[AArch64] Match pairwise add/fadd pattern

Authored by sanwou01 on Sep 11 2020, 5:17 PM.

Description

[AArch64] Match pairwise add/fadd pattern

D75689 turns the faddp pattern into a shuffle with vector add.

Match this new pattern in target-specific DAG combine, rather than ISel,
because legalization (for v2f32) turns it into a bit of a mess.

  • extended to cover f16, f32, f64 and i64

Details

Committed
sanwou01Sep 17 2020, 8:27 AM
Parents
rG3ee87a976d52: Precommit test updates
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