Alex Bradbury ae14754612 [RISCV] Implement isMultiStoresCheaperThanBitsMerge hook ...

Grabs the same logic and reasoning from the X86 implementation of the
hook. The benefit is slightly less clear for when the soft float ABI is
used (i.e. there's no transfer from an FPR to a GPR), but I've opted not
to gate it based on ABI.

Differential Revision: https://reviews.llvm.org/D140408

2023-01-31 12:47:48 +00:00

6.3 KiB

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