David Green 4c6a070a2c [AArch64] Teach perfect shuffles tables about D-lane movs ... Similar to D123386, this adds D-Movs to the AArch64 perfect shuffle tables, slightly lowering the costs a little more. This is a rough improvement in general, especially if you ignore mov v0.16b, v2.16b type moves that are often artefacts of the calling convention. The D register movs are encoded as (0x4 | LaneIdx), and to generate a D register move we are required to bitcast into a higher type, but it is otherwise very similar to the S-lane mov's already supported. Differential Revision: https://reviews.llvm.org/D125477		2022-05-17 18:16:45 +01:00
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CMakeLists.txt
PerfectShuffle.cpp	[AArch64] Teach perfect shuffles tables about D-lane movs	2022-05-17 18:16:45 +01:00