On Tue, 18 Feb 2020, Kito Cheng wrote: > - fmv.x.s/fmv.s.x renamed to fmv.x.w/fmv.w.x in the latest RISC-V ISA > manual.
The new mnemonics have been supported by GAS for a little while now and the old ones have been retained, however this is still a change that breaks backwards compatibility. So I wonder if we shouldn't have an autoconf test included for this feature, and either resort to wiring GCC to keep using the old mnemonics or bail out at GCC compilation time if GAS is found not to handle the new ones. At the very least I think we ought to document the minimum version of binutils now required by GCC for RISC-V support. Maciej
