cmd/compile: add OpAMD64CMPptr and friends? #20873
amd64.rules contains a fair number of rules that are conditional on config.PtrSize, to support amd64p32. See CL 46870 for a recent example. To reduce duplication, I suggest we add ops whose lowering depends on pointer size. So for example, instead of:
we would have only:
where CMPptr is treated as CMPQ for amd64 and CMPL for amd64p32. Similarly so for other such duplicated rules.
Sounds ok to me. You are, however, trading verbosity in some places for verbosity elsewhere.