tree 00951165ee692fb4ea0cc8792af0a23ab975652d
parent 2e0ee68dc85c0a2b7e65e489a60ab363393b06a8
author Craig Topper <craig.topper@sifive.com> 1620316738 -0700
committer Craig Topper <craig.topper@sifive.com> 1620316745 -0700

[RISCV] Cleanup instruction formats used for B extension ternary operations.

Rename RVInstR4 as used by F/D/Zfh extensions to RVInstR4Frm.
Introduce new RVInstR4 that takes funct3 as a parameter.

Add new format classes for FSRI and FSRIW instead of trying to
bend RVInstR4 to use a shamt overlayed on rs2 and funct2.

Reviewed By: frasercrmck

Differential Revision: https://reviews.llvm.org/D100427