Cross Reference: /src/external/gpl3/gcc.old/dist/gcc/fwprop.cc

Lines Matching defs:use_insn
195 /* Prepare to replace FROM with TO in USE_INSN.  */
197 fwprop_propagation::fwprop_propagation (insn_info *use_insn,
199   : insn_propagation (use_insn->rtl (), from, to),
201     single_ebb_p (use_insn->ebb () == def->ebb ())
358    USE_INSN.  Return the number of substitutions on success, otherwise return
359    -1 and leave USE_INSN unchanged.
368 try_fwprop_subst_note (insn_info *use_insn, set_info *def,
371   rtx_insn *use_rtl = use_insn->rtl ();
375   fwprop_propagation prop (use_insn, def, dest, src);
381 		 use_insn->uid (), prop.failure_reason);
395 		     use_insn->uid (), "wouldn't fold to constants");
406 		     use_insn->uid (), "would increase complexity of node");
427    USE_INSN's pattern.  Return true on success, otherwise leave USE_INSN
434   insn_info *use_insn = use_change.insn ();
435   rtx_insn *use_rtl = use_insn->rtl ();
439   fwprop_propagation prop (use_insn, def, dest, src);
444 		 " insn %d: %s\n", def_insn->uid (), use_insn->uid (),
456 		 " insn %d: %s\n", def_insn->uid (), use_insn->uid (),
464 	       def_insn->uid (), use_insn->uid ());
474   if (ok && !prop.changed_mem_p () && !use_insn->is_asm ())
529 	  && try_fwprop_subst_note (use_insn, def, note, dest, src, false) < 0)
544 /* Try to substitute (set DEST SRC), which defines DEF, into USE_INSN's notes,
545    given that it was not possible to do this for USE_INSN's main pattern.
546    Return true on success, otherwise leave USE_INSN unchanged.  */
549 try_fwprop_subst_notes (insn_info *use_insn, set_info *def,
552   rtx_insn *use_rtl = use_insn->rtl ();
556 	&& try_fwprop_subst_note (use_insn, def, note, dest, src, true) > 0)
570    Return true on success, otherwise leave USE_INSN unchanged.  */
576   insn_info *use_insn = use->insn ();
591      to make the uses available at use_insn->ebb ()->first_bb ().  */
592   if (def_insn->bb () != use_insn->bb ())
595 						 use_insn->bb (),
596 						 use_insn->is_debug_insn ());
601   insn_change use_change (use_insn);
609      use_change.move_range = use_insn->ebb ()->insn_range ();  */
614 	  || try_fwprop_subst_notes (use_insn, def, dest, src));
761   insn_info *use_insn = use->insn ();
762   rtx_insn *use_rtl = use_insn->rtl ();
768   bool need_single_set = (!use_insn->is_asm () && !use_insn->is_debug_insn ());
782   if (use_insn->is_asm () && def_insn->uses ().size () > 1)
866   insn_info *use_insn = use->insn ();
867   rtx_insn *use_rtl = use_insn->rtl ();
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