+ edges_reroute(left, res, current_ir_graph);
+ /* Reattach the result proj to left */
+ set_Proj_pred(res, left);
+ }
+ }
+
+ flags_mode = ia32_reg_classes[CLASS_ia32_flags].mode;
+ flags_proj = new_r_Proj(current_ir_graph, block, left, flags_mode,
+ pn_ia32_flags);
+ arch_set_irn_register(flags_proj, &ia32_flags_regs[REG_EFLAGS]);
+
+ assert(get_irn_mode(node) != mode_T);
+
+ be_peephole_exchange(node, flags_proj);
+ } else if (is_ia32_Immediate(right)) {
+ ia32_immediate_attr_t const *const imm = get_ia32_immediate_attr_const(right);
+ unsigned offset;
+
+ /* A test with a symconst is rather strange, but better safe than sorry */
+ if (imm->symconst != NULL)
+ return;
+
+ offset = imm->offset;
+ if (get_ia32_op_type(node) == ia32_AddrModeS) {
+ ia32_attr_t *const attr = get_irn_generic_attr(node);
+
+ if ((offset & 0xFFFFFF00) == 0) {
+ /* attr->am_offs += 0; */
+ } else if ((offset & 0xFFFF00FF) == 0) {
+ ir_node *imm = create_Immediate(NULL, 0, offset >> 8);
+ set_irn_n(node, n_ia32_Test_right, imm);
+ attr->am_offs += 1;
+ } else if ((offset & 0xFF00FFFF) == 0) {
+ ir_node *imm = create_Immediate(NULL, 0, offset >> 16);
+ set_irn_n(node, n_ia32_Test_right, imm);
+ attr->am_offs += 2;
+ } else if ((offset & 0x00FFFFFF) == 0) {
+ ir_node *imm = create_Immediate(NULL, 0, offset >> 24);
+ set_irn_n(node, n_ia32_Test_right, imm);
+ attr->am_offs += 3;
+ } else {
+ return;
+ }
+ } else if (offset < 256) {
+ arch_register_t const* const reg = arch_get_irn_register(left);
+
+ if (reg != &ia32_gp_regs[REG_EAX] &&
+ reg != &ia32_gp_regs[REG_EBX] &&
+ reg != &ia32_gp_regs[REG_ECX] &&
+ reg != &ia32_gp_regs[REG_EDX]) {
+ return;
+ }
+ } else {
+ return;
+ }
+
+ /* Technically we should build a Test8Bit because of the register
+ * constraints, but nobody changes registers at this point anymore. */
+ set_ia32_ls_mode(node, mode_Bu);
+ }