Hello,
The following patch improves both the speed and code size for 64 bit
subtraction for RL78:
it emits a library function call instead of emitting code for the 64 bit add
for every single subtraction.
The subtraction function which was added in libgcc is hand written, so more
optimal than
Committed. Thanks!
Note: your diff program isn't producing valid diffs...
* it's dropping leading tabs
* it's not putting a space after file names in the headers
I have to manually fix these to apply the patch; if you could fix it on
your end that would be appreciated :-)
