https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113576
--- Comment #30 from Richard Sandiford <rsandifo at gcc dot gnu.org> --- (In reply to Richard Biener from comment #29) > But that's just for CONSTRUCTORs, we got the VIEW_CONVERT_EXPR path for > VECTOR_CSTs. But yeah, that _might_ argue we should perform the same > masking for VECTOR_CST expansion as well, instead of trying to fixup > in do_compare_and_jump? But then how would ~ be implemented for things like 4-bit masks? If we use notqi2 then I assume the upper bits could be 1 rather than 0.
