Simon Pilgrim 1a9fbf6166 [X86] combineLoad - reuse an existing VBROADCAST_LOAD constant for a smaller vector load of the same constant
Extends the existing code that performed something similar for SUBV_BROADCAST_LOAD, but this is just for cases where AVX2 targets loads full width 128-bit constant vectors but broadcasts the equivalent 256-bit constant vector

Fixes AVX2 case for Issue #70947
2023-11-13 11:59:04 +00:00
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