contrib/gcc/tree-scalar-evolution.c

1202 	tree op0 = ASSERT_EXPR_VAR (rhs);
1203 	if (TREE_CODE (op0) == SSA_NAME)
1204 	  res = follow_ssa_edge (loop, SSA_NAME_DEF_STMT (op0),
1831   tree op0, op1, new0, new1;
1837       op0 = TREE_OPERAND (expr, 0);
1842 	  new0 = fold_used_pointer (op0, at_stmt);
1845       else if (code == PLUS_EXPR && pointer_offset_p (op0))
1847 	  new0 = fold_used_pointer_cast (op0);
1853       if (new0 == op0 && new1 == op1)
2146   tree res, op0, op1, op2;
2231       op0 = instantiate_parameters_1 (loop, CHREC_LEFT (chrec),
2233       if (op0 == chrec_dont_know)
2241       if (CHREC_LEFT (chrec) != op0
2244 	  op1 = chrec_convert (chrec_type (op0), op1, NULL_TREE);
2245 	  chrec = build_polynomial_chrec (CHREC_VARIABLE (chrec), op0, op1);
2250       op0 = instantiate_parameters_1 (loop, TREE_OPERAND (chrec, 0),
2252       if (op0 == chrec_dont_know)
2260       if (TREE_OPERAND (chrec, 0) != op0
2263 	  op0 = chrec_convert (type, op0, NULL_TREE);
2265 	  chrec = chrec_fold_plus (type, op0, op1);
2270       op0 = instantiate_parameters_1 (loop, TREE_OPERAND (chrec, 0),
2272       if (op0 == chrec_dont_know)
2280       if (TREE_OPERAND (chrec, 0) != op0
2283 	  op0 = chrec_convert (type, op0, NULL_TREE);
2285 	  chrec = chrec_fold_minus (type, op0, op1);
2290       op0 = instantiate_parameters_1 (loop, TREE_OPERAND (chrec, 0),
2292       if (op0 == chrec_dont_know)
2300       if (TREE_OPERAND (chrec, 0) != op0
2303 	  op0 = chrec_convert (type, op0, NULL_TREE);
2305 	  chrec = chrec_fold_multiply (type, op0, op1);
2312       op0 = instantiate_parameters_1 (loop, TREE_OPERAND (chrec, 0),
2314       if (op0 == chrec_dont_know)
2319 	  tree tmp = chrec_convert_aggressive (TREE_TYPE (chrec), op0);
2324       if (op0 == TREE_OPERAND (chrec, 0))
2331 	return fold_convert (TREE_TYPE (chrec), op0);
2333       return chrec_convert (TREE_TYPE (chrec), op0, NULL_TREE);
2348       op0 = instantiate_parameters_1 (loop, TREE_OPERAND (chrec, 0),
2350       if (op0 == chrec_dont_know)
2363       if (op0 == TREE_OPERAND (chrec, 0)
2369 			  TREE_TYPE (chrec), op0, op1, op2);
2372       op0 = instantiate_parameters_1 (loop, TREE_OPERAND (chrec, 0),
2374       if (op0 == chrec_dont_know)
2382       if (op0 == TREE_OPERAND (chrec, 0)
2385       return fold_build2 (TREE_CODE (chrec), TREE_TYPE (chrec), op0, op1);
2388       op0 = instantiate_parameters_1 (loop, TREE_OPERAND (chrec, 0),
2390       if (op0 == chrec_dont_know)
2392       if (op0 == TREE_OPERAND (chrec, 0))
2394       return fold_build1 (TREE_CODE (chrec), TREE_TYPE (chrec), op0);