gcc4/gcc/ifcvt.c

601   rtx insn_a, insn_b;
1287   rtx insn_a, insn_b;
1322   insn_b = if_info->insn_b;
1337   if (insn_b) {
1338     insn_cost += insn_rtx_cost (PATTERN (insn_b));
1356 	  tmp = insn_a, insn_a = insn_b, insn_b = tmp;
1406       else if (! insn_b)
1411 	  tmp = copy_rtx (insn_b);
2173   rtx insn_a, insn_b;
2236       insn_b = first_active_insn (else_bb);
2237       if (! insn_b
2238 	  || insn_b != last_active_insn (else_bb, FALSE)
2239 	  || (set_b = single_set (insn_b)) == NULL_RTX
2245       insn_b = prev_nonnote_insn (if_info.cond_earliest);
2249       if (! insn_b
2250 	  || !NONJUMP_INSN_P (insn_b)
2251 	  || (set_b = single_set (insn_b)) == NULL_RTX
2262 	insn_b = set_b = NULL_RTX;
2303   if_info.insn_b = insn_b;
2321       if (insn_b && else_bb)
2325 	  if (else_bb && insn_b == BB_END (else_bb))
2326 	    BB_END (else_bb) = PREV_INSN (insn_b);
2327 	  reorder_insns (insn_b, insn_b, PREV_INSN (jump));
2331 	  if ((note = find_reg_note (insn_b, REG_EQUAL, NULL_RTX)) != 0)
2332 	    remove_note (insn_b, note);
2334 	  insn_b = NULL_RTX;
2338       else if (insn_b && side_effects_p (orig_x))
2405   /* Several special cases here: First, we may have reused insn_b above,
2406      in which case insn_b is now NULL.  Second, we want to delete insn_b
2408      write that appears in the TEST block.  However, if we got insn_b from
2411   if (insn_b && else_bb)
2412     delete_insn (insn_b);
2424       insn_b = get_insns ();
2426       unshare_all_rtl_in_chain (insn_b);
2429       emit_insn_after_setloc (insn_b, BB_END (test_bb), INSN_LOCATOR (insn_a));