[sdcc-devel] Picking 4 fixes from the next branch to trunk for 4.5.0 RC2

[Philipp K. K. <pk...@sp...>]

Hello,

I'd like to pick the following fixes from the next branch to trunk (and
trunk is hard frozen, so this needs to be discussed here first) before
preparing RC2:

0) Fixes for some corner-cases of the f8 ldw instruction for the
assembler and simulator:
https://sourceforge.net/p/sdcc/code/15201/

1) Fix for bug #3812 (made host regression tests fail on older macOS
(would affect any non-POSIX host)):
https://sourceforge.net/p/sdcc/code/15212/

2) Fix a bug affecting long long divisions:
https://sourceforge.net/p/sdcc/code/15213/
https://sourceforge.net/p/sdcc/code/15214/

3) Fix a z80codegen bug affecting some unsigned char comparisons (only
reproduced on big-endian 32-bit hosts so far, but could in principle be
triggered on any host):
https://sourceforge.net/p/sdcc/code/15215/

IMO, 0), 1) and 3) are very low risk. 2) has a slightly higher risk. 2)
and 3) are IMO quite serious bugs, since they can result in the silent
generation of bad code.

Philipp

P.S.: There might be more later - Felix is working on a fix for #3646,
and if I find time, I might look into the mos6502 part of bug #3814. But
I'm not sure we'll get those other fixes in time, and I'd like to start
now by getting the four fixes I listed above into trunk soon, so we get
some additional testing from the compile farm before RC2.