Ah, I misread your comment and went hunting for DF_REF_ARTIFICIAL. Sorry! Will fix.
Thanks again, Bill > On Dec 11, 2016, at 5:29 PM, Segher Boessenkool <seg...@kernel.crashing.org> > wrote: > > On Sun, Dec 11, 2016 at 03:31:35PM -0600, Bill Schmidt wrote: >> On 12/11/16 2:00 PM, Segher Boessenkool wrote: >>> Maybe this should use DF_REF_IS_ARTIFICIAL? Or if that doesn't work, >>> DF_REF_INSN_INFO? >>> >> OK, currently regstrapping the following, which also fixes the problem with >> a non-bootstrap compiler. Is this ok for trunk if it succeeds? > >> --- gcc/config/rs6000/rs6000.c (revision 243506) >> +++ gcc/config/rs6000/rs6000.c (working copy) >> @@ -41433,6 +41433,12 @@ find_alignment_op (rtx_insn *insn, rtx base_reg) >> if (!base_def_link || base_def_link->next) >> break; >> >> + /* With stack-protector code enabled, and possibly in other >> + circumstances, there may not be an associated insn for >> + the def. */ >> + if (DF_REF_CLASS (base_def_link->ref) == DF_REF_ARTIFICIAL) >> + break; > > if (DF_REF_IS_ARTIFICIAL (base_def_link->ref)) > > Okay with that (no need to retest, just see if it compiles ;-) ) > > Thanks, > > > Segher >
