Compile errors with esp8266/Arduino 3.1.2

[igor-d-n]

Version/revision of the library used

IRremote 2.8.5
Arduino core for ESP8266 ver 3.1.2 (latest)

Describe the bug

Code can't compile. Always errors:
ccCS7VxT.s: Assembler messages
ccCS7VxT.s:11346: Error bad register name a9
ccCS7VxT.s:11346: junk at end of line, first unrecognized character valued 0x9
ccCS7VxT.s:11347: Error bad register name sp
ccCS7VxT.s:11347: junk at end of line, first unrecognized character valued 0x9
ccCS7VxT.s:11349: Error bad register name a13
.....

To Reproduce

Make project and compile

[NiKiZe]

Which program are you compiling? And what makes this point to this library?

What do I need to recreate this issue? (Assume that we know nothing of your setup, and that only platformio is installed on a clean computer)

[crankyoldgit]

The closest thing I can find to this is: esp8266/Arduino#8672
It looks like a tool chain issue. Not so much our library, as such.

[crankyoldgit]

also: https://stackoverflow.com/questions/73116518/understanding-esp8266-assembly-errors-in-arduino-ide-on-upgrade-from-boards-pack