[Bug target/97969] [9/10/11 Regression][ARM/Thumb] Certain combo of codegen options leads to compilation infinite loop with growing memory use

[wirkus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97969

--- Comment #20 from Przemyslaw Wirkus <wirkus at gcc dot gnu.org> ---
Just a heads-up:

I would like to suggest backport for this patch to GCC 9 and 10. Quoting
Vladimir:

> The bug is actually severe and should be classified as P1
Currently patch applies cleanly for both gcc-9 and gcc-10 branches. 

I will firstly bootstrap both toolchains (9&10) with this change and run some
tests. After I'm done and all is OK I will properly ask for backport.

Again, Vladimir, thank you for the fix!