Thanks, Johnathon, I was aware of these, and I'll definitely check them out. -+- Sid On Mon, Jul 10, 2023 at 9:04 AM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On Mon, 10 Jul 2023 at 13:58, Sid Maxwell via Gcc-help > <gcc-help@xxxxxxxxxxx> wrote: > > > > I'm exploring updating a compiler built against the GCC 4.3.0 codebase to > > (likely) GCC 12.3. Is there any documentation regarding API changes > > between these versions affecting the machine description (.md) and other > > machine-specific code? > > These are probably a good place to start: > https://gcc.gnu.org/gcc-4.4/changes.html > ... > https://gcc.gnu.org/gcc-4.9/changes.html > https://gcc.gnu.org/gcc-5/changes.html > ... > https://gcc.gnu.org/gcc-12/changes.html >
