Rebase over SDCC r11930

[pixelherodev]

No description provided.

[pixelherodev]

cc @aviallon @MaxLeiter

[pixelherodev]

@aviallon For future reference: the process I used to import changes relatively cleanly:

• Format all the codes. clang-format -i --style=file src/*.{c,h,hpp,cc} src/backend/*.{c,cc,h} src/util/*.{c,h}

A simpler formatter would be nice, but I used what I had on hand

• Commit that and leave it on master. For the future, we'll want to enforce this for every commit, so it doesn't need to be done in bulk.

• Branch.

• Copy all upstream files in place.

  • rsync ../../../archives/sdcc/sdcc/src/SDCC* src/
  • rsync ../../../archives/sdcc/sdcc/src/z80/*.{h,c,cc,def,i} src/backend/
  • etc

• Selectively apply patches with git add -p. It's been five years, and there's about 10KLoC changes. If we do this regularly (monthly, maybe?), we should be able to easily apply only those patches we want and reject the ones we don't. Alternatively, we can go over the revisions upstream now that there's fewer to look at, and apply those instead. This time, I just took my time and combed over the changes, adding them piecemeal.

• Once all desired changes are selected, make a temporary commit.

• Remove unwanted changes with e.g. git reset --hard.

• Test.

• Add fixes in their own commits, with careless messages :p

• Rebase, merge together commits which make sense as one, clean up messages. Rule of thumb: every single commit should build without issues. If any don't, that's a problem, and it should be fixed in this step.

• Review

• PR

[pixelherodev]

Ignoring the changelog, this is +16328 -9249, which should be much easier to review than the last attempt, but still might be better split into pieces.

[aviallon]

This is very neat ! Thanks !

[aviallon]

I'm happy you find the time to work on this... Do you think that this new codebase would support c99 ? (At least variable declarations not at the beginning of a context)
This would be cool 😃

[pixelherodev]

It already did! :P

It supports more of C99 now, but it already supported a good chunk with --std-c99.

[aviallon]

Unfortunately, it didn't for this particular feature.