> Besides obvious register allocation differences m32c is very sensitive to register allocation issues.
> you basically duplicate the cmp patterns into cbranch and m32c already has a cbranch, though. It gets split after reload. Also, m32c needs a separate compare RTL insn in the end because it's not always emitted. > config/m32c 4 files changed, 50 insertions(+), 150 deletions(-) Please don't commit this one until you've built all of libiberty, newlib, and libgcc with the changed compiler (-mcpu=m16c and -mcpu=m32c). Usually one of those fails to build if you're not careful about register allocation. Also, make sure you can still generate all the opcodes in m32c/cond.md - it took me a while to get them all to be used, I'd hate to lose them now.