contrib/gcc/tree-ssa-forwprop.c

499 simplify_cond (tree stmt)
501   tree cond = COND_EXPR_COND (stmt);
520 		  COND_EXPR_COND (stmt) = new_cond;
521 		  update_stmt (stmt);
575 /* We've just substituted an ADDR_EXPR into stmt.  Update all the
579 tidy_after_forward_propagate_addr (tree stmt)
582   if (maybe_clean_or_replace_eh_stmt (stmt, stmt)
583       && tree_purge_dead_eh_edges (bb_for_stmt (stmt)))
586   if (TREE_CODE (TREE_OPERAND (stmt, 1)) == ADDR_EXPR)
587      recompute_tree_invariant_for_addr_expr (TREE_OPERAND (stmt, 1));
589   mark_new_vars_to_rename (stmt);
609 						  tree stmt, tree use_stmt)
651   TREE_OPERAND (use_stmt, 1) = unshare_expr (TREE_OPERAND (stmt, 1));
674 forward_propagate_addr_expr_1 (tree stmt, tree use_stmt, bool *changed)
676   tree name = TREE_OPERAND (stmt, 0);
691       TREE_OPERAND (lhs, 0) = unshare_expr (TREE_OPERAND (stmt, 1));
707       TREE_OPERAND (use_stmt, 1) = unshare_expr (TREE_OPERAND (stmt, 1));
728       TREE_OPERAND (rhs, 0) = unshare_expr (TREE_OPERAND (stmt, 1));
740   array_ref = TREE_OPERAND (TREE_OPERAND (stmt, 1), 0);
757       TREE_OPERAND (rhs, 0) = unshare_expr (TREE_OPERAND (stmt, 1));
791 							      stmt, use_stmt);
808 							      stmt, use_stmt);
826 forward_propagate_addr_expr (tree stmt, bool *some)
828   int stmt_loop_depth = bb_for_stmt (stmt)->loop_depth;
829   tree name = TREE_OPERAND (stmt, 0);
862       result = forward_propagate_addr_expr_1 (stmt, use_stmt, some);
885 simplify_not_neg_expr (tree stmt)
887   tree rhs = TREE_OPERAND (stmt, 1);
900 	  TREE_OPERAND (stmt, 1) = rhs_def_operand;
901 	  update_stmt (stmt);
910 simplify_switch_expr (tree stmt)
912   tree cond = SWITCH_COND (stmt);
955 		  SWITCH_COND (stmt) = def;
956 		  update_stmt (stmt);
980 	  tree stmt = bsi_stmt (bsi);
984 	  if (TREE_CODE (stmt) == MODIFY_EXPR)
986 	      tree lhs = TREE_OPERAND (stmt, 0);
987 	      tree rhs = TREE_OPERAND (stmt, 1);
999 		  if (forward_propagate_addr_expr (stmt, &some))
1010 		  simplify_not_neg_expr (stmt);
1016 	  else if (TREE_CODE (stmt) == SWITCH_EXPR)
1018 	      simplify_switch_expr (stmt);
1021 	  else if (TREE_CODE (stmt) == COND_EXPR)
1023 	      forward_propagate_into_cond (stmt);