{
if (pedantic_lvalues)
return non_lvalue_loc (loc, x);
- protected_set_expr_location (x, loc);
+
+ if (CAN_HAVE_LOCATION_P (x)
+ && EXPR_LOCATION (x) != loc
+ && !(TREE_CODE (x) == SAVE_EXPR
+ || TREE_CODE (x) == TARGET_EXPR
+ || TREE_CODE (x) == BIND_EXPR))
+ {
+ x = copy_node (x);
+ SET_EXPR_LOCATION (x, loc);
+ }
return x;
}
\f
case TRUTH_ORIF_EXPR:
return OP_SAME (0) && OP_SAME (1);
+ case FMA_EXPR:
+ case WIDEN_MULT_PLUS_EXPR:
+ case WIDEN_MULT_MINUS_EXPR:
+ if (!OP_SAME (2))
+ return 0;
+ /* The multiplcation operands are commutative. */
+ /* FALLTHRU */
+
case TRUTH_AND_EXPR:
case TRUTH_OR_EXPR:
case TRUTH_XOR_EXPR:
TREE_OPERAND (arg1, 0), flags));
case COND_EXPR:
+ case VEC_COND_EXPR:
+ case DOT_PROD_EXPR:
return OP_SAME (0) && OP_SAME (1) && OP_SAME (2);
default:
case IMAGPART_EXPR:
if (TREE_CODE (TREE_TYPE (arg0)) != COMPLEX_TYPE)
- return fold_convert_loc (loc, type, integer_zero_node);
+ return build_zero_cst (type);
if (TREE_CODE (arg0) == COMPLEX_EXPR)
return omit_one_operand_loc (loc, type, TREE_OPERAND (arg0, 1),
TREE_OPERAND (arg0, 0));
fold_build2_loc (loc, MULT_EXPR, itype, rpart, rpart),
fold_build2_loc (loc, MULT_EXPR, itype, ipart, ipart));
return fold_build2_loc (loc, COMPLEX_EXPR, type, tem,
- fold_convert_loc (loc, itype, integer_zero_node));
+ build_zero_cst (itype));
}
if ((!FLOAT_TYPE_P (type) || !HONOR_NANS (TYPE_MODE (type)))
&& operand_equal_p (arg0, arg1, 0))
- return fold_convert_loc (loc, type, integer_zero_node);
+ return build_zero_cst (type);
/* A - B -> A + (-B) if B is easily negatable. */
if (negate_expr_p (arg1)
if (TREE_CODE (arg0) == BIT_NOT_EXPR
&& operand_equal_p (TREE_OPERAND (arg0, 0), arg1, 0))
{
- t1 = fold_convert_loc (loc, type, integer_zero_node);
+ t1 = build_zero_cst (type);
t1 = fold_unary_loc (loc, BIT_NOT_EXPR, type, t1);
return omit_one_operand_loc (loc, type, t1, arg1);
}
if (TREE_CODE (arg1) == BIT_NOT_EXPR
&& operand_equal_p (arg0, TREE_OPERAND (arg1, 0), 0))
{
- t1 = fold_convert_loc (loc, type, integer_zero_node);
+ t1 = build_zero_cst (type);
t1 = fold_unary_loc (loc, BIT_NOT_EXPR, type, t1);
return omit_one_operand_loc (loc, type, t1, arg0);
}
if (TREE_CODE (arg0) == BIT_NOT_EXPR
&& operand_equal_p (TREE_OPERAND (arg0, 0), arg1, 0))
{
- t1 = fold_convert_loc (loc, type, integer_zero_node);
+ t1 = build_zero_cst (type);
t1 = fold_unary_loc (loc, BIT_NOT_EXPR, type, t1);
return omit_one_operand_loc (loc, type, t1, arg1);
}
if (TREE_CODE (arg1) == BIT_NOT_EXPR
&& operand_equal_p (arg0, TREE_OPERAND (arg1, 0), 0))
{
- t1 = fold_convert_loc (loc, type, integer_zero_node);
+ t1 = build_zero_cst (type);
t1 = fold_unary_loc (loc, BIT_NOT_EXPR, type, t1);
return omit_one_operand_loc (loc, type, t1, arg0);
}
tree
fold_ternary_loc (location_t loc, enum tree_code code, tree type,
- tree op0, tree op1, tree op2)
+ tree op0, tree op1, tree op2)
{
tree tem;
- tree arg0 = NULL_TREE, arg1 = NULL_TREE;
+ tree arg0 = NULL_TREE, arg1 = NULL_TREE, arg2 = NULL_TREE;
enum tree_code_class kind = TREE_CODE_CLASS (code);
gcc_assert (IS_EXPR_CODE_CLASS (kind)
STRIP_NOPS (arg1);
}
+ if (op2)
+ {
+ arg2 = op2;
+ STRIP_NOPS (arg2);
+ }
+
switch (code)
{
case COMPONENT_REF:
if (elements)
return TREE_VALUE (elements);
else
- return fold_convert_loc (loc, type, integer_zero_node);
+ return build_zero_cst (type);
}
}
return NULL_TREE;
+ case FMA_EXPR:
+ /* For integers we can decompose the FMA if possible. */
+ if (TREE_CODE (arg0) == INTEGER_CST
+ && TREE_CODE (arg1) == INTEGER_CST)
+ return fold_build2_loc (loc, PLUS_EXPR, type,
+ const_binop (MULT_EXPR, arg0, arg1), arg2);
+ if (integer_zerop (arg2))
+ return fold_build2_loc (loc, MULT_EXPR, type, arg0, arg1);
+
+ return fold_fma (loc, type, arg0, arg1, arg2);
+
default:
return NULL_TREE;
} /* switch (code) */
}
}
- /* ((foo*)&vectorfoo)[1] => BIT_FIELD_REF<vectorfoo,...> */
if (TREE_CODE (sub) == POINTER_PLUS_EXPR
&& TREE_CODE (TREE_OPERAND (sub, 1)) == INTEGER_CST)
{
tree op00 = TREE_OPERAND (sub, 0);
tree op01 = TREE_OPERAND (sub, 1);
- tree op00type;
STRIP_NOPS (op00);
- op00type = TREE_TYPE (op00);
- if (TREE_CODE (op00) == ADDR_EXPR
- && TREE_CODE (TREE_TYPE (op00type)) == VECTOR_TYPE
- && type == TREE_TYPE (TREE_TYPE (op00type)))
+ if (TREE_CODE (op00) == ADDR_EXPR)
{
- HOST_WIDE_INT offset = tree_low_cst (op01, 0);
- tree part_width = TYPE_SIZE (type);
- unsigned HOST_WIDE_INT part_widthi = tree_low_cst (part_width, 0)/BITS_PER_UNIT;
- unsigned HOST_WIDE_INT indexi = offset * BITS_PER_UNIT;
- tree index = bitsize_int (indexi);
-
- if (offset/part_widthi <= TYPE_VECTOR_SUBPARTS (TREE_TYPE (op00type)))
- return fold_build3_loc (loc,
- BIT_FIELD_REF, type, TREE_OPERAND (op00, 0),
- part_width, index);
+ tree op00type;
+ op00 = TREE_OPERAND (op00, 0);
+ op00type = TREE_TYPE (op00);
- }
- }
+ /* ((foo*)&vectorfoo)[1] => BIT_FIELD_REF<vectorfoo,...> */
+ if (TREE_CODE (op00type) == VECTOR_TYPE
+ && type == TREE_TYPE (op00type))
+ {
+ HOST_WIDE_INT offset = tree_low_cst (op01, 0);
+ tree part_width = TYPE_SIZE (type);
+ unsigned HOST_WIDE_INT part_widthi = tree_low_cst (part_width, 0)/BITS_PER_UNIT;
+ unsigned HOST_WIDE_INT indexi = offset * BITS_PER_UNIT;
+ tree index = bitsize_int (indexi);
+ if (offset/part_widthi <= TYPE_VECTOR_SUBPARTS (op00type))
+ return fold_build3_loc (loc,
+ BIT_FIELD_REF, type, op00,
+ part_width, index);
- /* ((foo*)&complexfoo)[1] => __imag__ complexfoo */
- if (TREE_CODE (sub) == POINTER_PLUS_EXPR
- && TREE_CODE (TREE_OPERAND (sub, 1)) == INTEGER_CST)
- {
- tree op00 = TREE_OPERAND (sub, 0);
- tree op01 = TREE_OPERAND (sub, 1);
- tree op00type;
-
- STRIP_NOPS (op00);
- op00type = TREE_TYPE (op00);
- if (TREE_CODE (op00) == ADDR_EXPR
- && TREE_CODE (TREE_TYPE (op00type)) == COMPLEX_TYPE
- && type == TREE_TYPE (TREE_TYPE (op00type)))
- {
- tree size = TYPE_SIZE_UNIT (type);
- if (tree_int_cst_equal (size, op01))
- return fold_build1_loc (loc, IMAGPART_EXPR, type,
- TREE_OPERAND (op00, 0));
+ }
+ /* ((foo*)&complexfoo)[1] => __imag__ complexfoo */
+ else if (TREE_CODE (op00type) == COMPLEX_TYPE
+ && type == TREE_TYPE (op00type))
+ {
+ tree size = TYPE_SIZE_UNIT (type);
+ if (tree_int_cst_equal (size, op01))
+ return fold_build1_loc (loc, IMAGPART_EXPR, type, op00);
+ }
+ /* ((foo *)&fooarray)[1] => fooarray[1] */
+ else if (TREE_CODE (op00type) == ARRAY_TYPE
+ && type == TREE_TYPE (op00type))
+ {
+ tree type_domain = TYPE_DOMAIN (op00type);
+ tree min_val = size_zero_node;
+ if (type_domain && TYPE_MIN_VALUE (type_domain))
+ min_val = TYPE_MIN_VALUE (type_domain);
+ op01 = size_binop_loc (loc, EXACT_DIV_EXPR, op01,
+ TYPE_SIZE_UNIT (type));
+ op01 = size_binop_loc (loc, PLUS_EXPR, op01, min_val);
+ op0 = build4 (ARRAY_REF, type, op00, op01,
+ NULL_TREE, NULL_TREE);
+ SET_EXPR_LOCATION (op0, loc);
+ return op0;
+ }
}
}
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