gcc/gcc/tree-ssa-forwprop.c

178 forward_propagate_into_cond_1 (tree cond, tree *test_var_p)
181   enum tree_code cond_code = TREE_CODE (cond);
194 	   && TREE_CODE (TREE_OPERAND (cond, 0)) == SSA_NAME
195 	   && CONSTANT_CLASS_P (TREE_OPERAND (cond, 1))
196 	   && INTEGRAL_TYPE_P (TREE_TYPE (TREE_OPERAND (cond, 1)))))
201     test_var = cond;
203     test_var = TREE_OPERAND (cond, 0);
247 	  t = int_const_binop (new_code, TREE_OPERAND (cond, 1), op1, 0);
257   else if (TREE_CODE (cond) == SSA_NAME
258 	   || integer_zerop (TREE_OPERAND (cond, 1))
259 	   || integer_onep (TREE_OPERAND (cond, 1)))
297 		   && integer_zerop (TREE_OPERAND (cond, 1)))
299 		      && integer_onep (TREE_OPERAND (cond, 1))))
334 		  && integer_zerop (TREE_OPERAND (cond, 1)))
336 		  && integer_onep (TREE_OPERAND (cond, 1))))
386 		      && integer_zerop (TREE_OPERAND (cond, 1)))
388 		      && integer_onep (TREE_OPERAND (cond, 1))))
425 find_equivalent_equality_comparison (tree cond)
427   tree op0 = TREE_OPERAND (cond, 0);
428   tree op1 = TREE_OPERAND (cond, 1);
486 	    return build2 (TREE_CODE (cond), TREE_TYPE (cond),
501   tree cond = COND_EXPR_COND (stmt);
503   if (COMPARISON_CLASS_P (cond))
505       tree op0 = TREE_OPERAND (cond, 0);
506       tree op1 = TREE_OPERAND (cond, 1);
514 	  if (TREE_CODE (cond) == EQ_EXPR || TREE_CODE (cond) == NE_EXPR)
516 	      tree new_cond = find_equivalent_equality_comparison (cond);
539       tree cond = COND_EXPR_COND (cond_expr);
540       tree new_cond = forward_propagate_into_cond_1 (cond, &test_var);
550 	  print_generic_expr (dump_file, cond, dump_flags);
912   tree cond = SWITCH_COND (stmt);
918   if (TREE_CODE (cond) == SSA_NAME)
920       def = SSA_NAME_DEF_STMT (cond);
936 	      to = TREE_TYPE (cond);