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Commit c4efcd69 authored by Alex Bradbury's avatar Alex Bradbury
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[RISCV] Generalise shouldExtendTypeInLibcall logic to apply to all <XLEN floats on soft ABIs 

This results in improved codegen for half/bf16 libcalls on soft ABIs

Adds a RISCVSubtarget helper method for determining if a soft FP ABI is
being targeted (future bf16 related patches make use of this).

Differential Revision: https://reviews.llvm.org/D151434
parent c551c9c3
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