https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82248
--- Comment #3 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> --- (In reply to Richard Biener from comment #2) > Miscompiles mpfr for us on armv7. Isn't it easy enough to handle this in > the insn pattern by using some non pre/post-indexed memory_operand predicate > and or using an early clobbered match_scratch to allocate 'r0'? I was testing a patch that used 'o' instead of 'm' in the constraint as that's just an offsettable address and would prevent post/ pre-inc type operations but it slipped through the cracks with travels in September :( Can you test if that is sufficient for you or what's the runes in configure for forcing probe_stack_range ? regards Ramana