[Bug target/94538] [10 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2223 (insn does not satisfy its constraints) with -mcpu=cortex-m23 -mslow-flash-data

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94538

--- Comment #12 from Christophe Lyon <clyon at gcc dot gnu.org> ---
I've posted a patch to fix the regression for your f3() examples:
https://gcc.gnu.org/pipermail/gcc-patches/2020-April/543993.html