https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82150
--- Comment #3 from david.welch at netronome dot com --- The problem exists as well with ldr pc,[something]. I have not dug through gcc but did some compilation experiments, not nearly enough to be 100% sure, but for switch statements the code generated always appears to do a comparison (perhaps after a subtract or other modification, an ldrls pc,[], then an unconditional branch to deal with the last item (or a default). If that is always the rule that is safe. And for a function table, an array of function pointers, it did the math using gprs and then a mov lr,pc ; bx rn. an ldr pc,[] literal pool data will cause this undesired prefetch.
