https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106602
--- Comment #9 from Vineet Gupta <vineetg at rivosinc dot com> --- (In reply to Jeffrey A. Law from comment #7) > There's some code in combine that's supposed to take advantage of REG_EQUAL > notes which is supposed to help with this kind of scenario. Digging into > that might help. Awesome, thx for the pointer Jeff. Indeed combine has a note processing fallback in the end. RV backend is got generating a note for the const split case (1 << 38). Let me see if I can fix that.
