> 2017-07-07 Daniel Cederman <ceder...@gaisler.com> > > * config/sparc/sparc.c (sparc_do_work_around_errata): Insert NOP > instructions to prevent sequences that can trigger the store-store > errata for certain LEON3FT processors. > (sparc_option_override): -mfix-ut699, -mfix-ut700, and > -mfix-gr712rc enables the errata workaround. > * config/sparc/sparc.md: Prevent stores in delay slot. > * config/sparc/sparc.opt: Add -mfix-ut700 and -mfix-gr712rc flag. > * doc/invoke.texi: Document -mfix-ut700 and -mfix-gr712rc flag.
Applied without the undocumented tweaks to the divdf3_fix and sqrtdf2_fix patterns. Why are 2 nops necessary here? The stored value doesn't matter. And the length attribute should be adjusted if nops are added to the pattern. -- Eric Botcazou
