[Bug rtl-optimization/69447] [5/6 Regression] wrong code with -O2 -fno-schedule-insns and mixed 8/16/32/64bit arithmetics @ armv7a

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69447

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Without knowing the lra-remat code at all, I just wonder if subreg_regs needs
to be one per the whole function, rather than say per extended basic block or
basic block, with the patch any uses in multi-reg subregs anywhere in the
function will affect remat of all other spots where it is used.