[Bug rtl-optimization/120983] recog violates earlyclobber with user-defined hard register before reload (causing ICE on gcc.target/loongarch/bitwise-shift-reassoc-clobber.c)

[xry111 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120983

--- Comment #7 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
https://gcc.gnu.org/pipermail/gcc-patches/2025-July/689000.html