Simon Pilgrim c252200e4d [DAG][ARM][MIPS][RISCV] Improve funnel shift promotion to use 'double shift' patterns
Based on a discussion on D88783, if we're promoting a funnel shift to a width at least twice the size as the original type, then we can use the 'double shift' patterns (shifting the concatenated sources).

Differential Revision: https://reviews.llvm.org/D89139
2020-10-12 14:11:02 +01:00
..
2019-06-18 14:29:45 +00:00
2019-09-17 11:15:35 +00:00
2019-09-17 11:15:35 +00:00