On Sat, Sep 20, 2014 at 2:23 PM, Segher Boessenkool
wrote:
> Make the carry bit non-allocatable (i.e., of class NO_REGS). It will
> only ever be assigned to explicitly by machine patterns. Let it have
> mode SI or DI (if compiling for 64-bit), even though it only ever
> contains 0 or 1, so that
This series handles most of the "small" changes for handling the carry
bit; it does not touch the "add" and scc patterns yet, and no pattern
sets or uses the carry yet either (only clobbers).
Tested as usual, no regressions. Are these okay to apply?
Segher
- - -
Make the carry bit non-alloc