env->entries[idx]->high_word = new_r_Proj(current_ir_graph, block, irn, mode, 1);
}
+/**
+ * Translate a Shr and handle special cases.
+ */
+static void lower_Shr(ir_node *node, ir_mode *mode, lower_env_t *env) {
+ ir_node *right = get_Shr_right(node);
+
+ if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
+ tarval *tv = get_Const_tarval(right);
+
+ if (tarval_is_long(tv) &&
+ get_tarval_long(tv) == get_mode_size_bits(env->params->low_signed)) {
+ ir_node *block = get_nodes_block(node);
+ ir_node *left = get_Shr_left(node);
+ int idx = get_irn_idx(left);
+
+ left = env->entries[idx]->high_word;
+ idx = get_irn_idx(node);
+
+ env->entries[idx]->low_word = left;
+ env->entries[idx]->high_word = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+
+ return;
+ }
+ }
+ lower_Shiftop(node, mode, env);
+}
+
+/**
+ * Translate a Shl and handle special cases.
+ */
+static void lower_Shl(ir_node *node, ir_mode *mode, lower_env_t *env) {
+ ir_node *right = get_Shl_right(node);
+
+ if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
+ tarval *tv = get_Const_tarval(right);
+
+ if (tarval_is_long(tv) &&
+ get_tarval_long(tv) == get_mode_size_bits(env->params->low_signed)) {
+ ir_node *block = get_nodes_block(node);
+ ir_node *left = get_Shl_left(node);
+ int idx = get_irn_idx(left);
+
+ left = env->entries[idx]->low_word;
+ idx = get_irn_idx(node);
+
+ env->entries[idx]->low_word = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ env->entries[idx]->high_word = left;
+
+ return;
+ }
+ }
+ lower_Shiftop(node, mode, env);
+}
+
+/**
+ * Translate a Shrs and handle special cases.
+ */
+static void lower_Shrs(ir_node *node, ir_mode *mode, lower_env_t *env) {
+ ir_node *right = get_Shrs_right(node);
+
+ if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
+ tarval *tv = get_Const_tarval(right);
+
+ if (tarval_is_long(tv) &&
+ get_tarval_long(tv) == get_mode_size_bits(env->params->low_signed)) {
+ ir_node *block = get_nodes_block(node);
+ ir_node *left = get_Shrs_left(node);
+ ir_node *c;
+ int idx = get_irn_idx(left);
+
+ left = env->entries[idx]->high_word;
+ idx = get_irn_idx(node);
+
+ c = new_r_Const_long(current_ir_graph, block, mode_Iu, get_mode_size_bits(mode) - 1);
+ env->entries[idx]->low_word = left;
+ env->entries[idx]->high_word = new_r_Shrs(current_ir_graph, block, left, c, mode);
+
+ return;
+ }
+ }
+ lower_Shiftop(node, mode, env);
+}
+
+/**
+ * Translate a Rot and handle special cases.
+ */
+static void lower_Rot(ir_node *node, ir_mode *mode, lower_env_t *env) {
+ ir_node *right = get_Rot_right(node);
+
+ if (get_mode_arithmetic(mode) == irma_twos_complement && is_Const(right)) {
+ tarval *tv = get_Const_tarval(right);
+
+ if (tarval_is_long(tv) &&
+ get_tarval_long(tv) == get_mode_size_bits(env->params->low_signed)) {
+ ir_node *block = get_nodes_block(node);
+ ir_node *left = get_Rot_left(node);
+ ir_node *h, *l;
+ int idx = get_irn_idx(left);
+
+ l = env->entries[idx]->low_word;
+ h = env->entries[idx]->high_word;
+ idx = get_irn_idx(node);
+
+ env->entries[idx]->low_word = h;
+ env->entries[idx]->high_word = l;
+
+ return;
+ }
+ }
+ lower_Shiftop(node, mode, env);
+}
/**
* Translate an Unop.
*
if (mode == env->params->high_signed)
mode = env->params->low_signed;
else
- mode = env->params->high_signed;
+ mode = env->params->low_unsigned;
dbg = get_irn_dbg_info(proj);
env->entries[idx]->low_word =
#define LOWER2(op, fkt) op_##op->ops.generic = (op_func)fkt
#define LOWER(op) LOWER2(op, lower_##op)
#define LOWER_BIN(op) LOWER2(op, lower_Binop)
-#define LOWER_SHIFT(op) LOWER2(op, lower_Shiftop)
#define LOWER_UN(op) LOWER2(op, lower_Unop)
LOWER(Load);
LOWER_BIN(Add);
LOWER_BIN(Sub);
LOWER_BIN(Mul);
- LOWER_SHIFT(Shl);
- LOWER_SHIFT(Shr);
- LOWER_SHIFT(Shrs);
- LOWER_SHIFT(Rot);
+ LOWER(Shl);
+ LOWER(Shr);
+ LOWER(Shrs);
+ LOWER(Rot);
LOWER_UN(Minus);
LOWER(DivMod);
LOWER(Div);