static void sparc_emit_node(const ir_node *node);
-/**
- * Returns the register at in position pos.
- */
-static const arch_register_t *get_in_reg(const ir_node *node, int pos)
-{
- ir_node *op;
- const arch_register_t *reg = NULL;
-
- assert(get_irn_arity(node) > pos && "Invalid IN position");
-
- /* The out register of the operator at position pos is the
- in register we need. */
- op = get_irn_n(node, pos);
-
- reg = arch_get_irn_register(op);
-
- assert(reg && "no in register found");
- return reg;
-}
-
-/**
- * Returns the register at out position pos.
- */
-static const arch_register_t *get_out_reg(const ir_node *node, int pos)
-{
- ir_node *proj;
- const arch_register_t *reg = NULL;
-
- /* 1st case: irn is not of mode_T, so it has only */
- /* one OUT register -> good */
- /* 2nd case: irn is of mode_T -> collect all Projs and ask the */
- /* Proj with the corresponding projnum for the register */
-
- if (get_irn_mode(node) != mode_T) {
- reg = arch_get_irn_register(node);
- } else if (is_sparc_irn(node)) {
- reg = arch_irn_get_register(node, pos);
- } else {
- const ir_edge_t *edge;
-
- foreach_out_edge(node, edge) {
- proj = get_edge_src_irn(edge);
- assert(is_Proj(proj) && "non-Proj from mode_T node");
- if (get_Proj_proj(proj) == pos) {
- reg = arch_get_irn_register(proj);
- break;
- }
- }
- }
-
- assert(reg && "no out register found");
- return reg;
-}
-
void sparc_emit_immediate(const ir_node *node)
{
const sparc_attr_t *attr = get_sparc_attr_const(node);
void sparc_emit_source_register(const ir_node *node, int pos)
{
- const arch_register_t *reg = get_in_reg(node, pos);
+ const arch_register_t *reg = arch_get_irn_register_in(node, pos);
be_emit_char('%');
be_emit_string(arch_register_get_name(reg));
}
void sparc_emit_dest_register(const ir_node *node, int pos)
{
- const arch_register_t *reg = get_out_reg(node, pos);
+ const arch_register_t *reg = arch_get_irn_register_out(node, pos);
be_emit_char('%');
be_emit_string(arch_register_get_name(reg));
}
*/
void sparc_emit_reg_or_imm(const ir_node *node, int pos)
{
- if (get_irn_arity(node) > pos) {
- // we have reg input
- sparc_emit_source_register(node, pos);
- } else {
+ if (arch_get_irn_flags(node) & ((arch_irn_flags_t)sparc_arch_irn_flag_immediate_form)) {
// we have a imm input
sparc_emit_immediate(node);
+ } else {
+ // we have reg input
+ sparc_emit_source_register(node, pos);
}
}
{
/* copies are nops if src_reg == dest_reg */
if (be_is_Copy(node) || be_is_CopyKeep(node)) {
- const arch_register_t *src_reg = get_in_reg(node, 0);
- const arch_register_t *dest_reg = get_out_reg(node, 0);
+ const arch_register_t *src_reg = arch_get_irn_register_in(node, 0);
+ const arch_register_t *dest_reg = arch_get_irn_register_out(node, 0);
if (src_reg == dest_reg)
return true;
return is_sparc_Bicc(node) || is_sparc_fbfcc(node) || is_sparc_Ba(node)
|| is_sparc_SwitchJmp(node) || is_sparc_Call(node)
|| is_sparc_SDiv(node) || is_sparc_UDiv(node)
- || be_is_Return(node);
+ || is_sparc_Return(node);
}
/** returns true if the emitter for this sparc node can produce more than one
if (has_delay_slot(node))
return true;
+ if (is_sparc_Call(node)) {
+ return arch_get_irn_flags(node) & sparc_arch_irn_flag_aggregate_return;
+ }
+
return is_sparc_Mulh(node) || is_sparc_SDiv(node) || is_sparc_UDiv(node)
|| be_is_MemPerm(node) || be_is_Perm(node);
}
/* the Call also destroys the value of %o7, but since this is currently
* marked as ignore register in the backend, it should never be used by
* the instruction in the delay slot. */
- } else if (be_is_Return(node)) {
+ } else if (is_sparc_Return(node)) {
/* we only have to check the jump destination value */
int arity = get_irn_arity(node);
int i;
be_emit_finish_line_gas(node);
fill_delay_slot();
+
+ if (arch_get_irn_flags(node) & sparc_arch_irn_flag_aggregate_return) {
+ be_emit_cstring("\tunimp 8\n");
+ be_emit_write_line();
+ }
}
/**
assert(sp_change == 0);
}
-static void emit_be_Return(const ir_node *node)
+static void emit_sparc_Return(const ir_node *node)
{
+ ir_graph *irg = get_irn_irg(node);
+ ir_entity *entity = get_irg_entity(irg);
+ ir_type *type = get_entity_type(entity);
+
const char *destreg = "%o7";
/* hack: we don't explicitely model register changes because of the
}
be_emit_cstring("\tjmp ");
be_emit_string(destreg);
- be_emit_cstring("+8");
+ if (type->attr.ma.has_compound_ret_parameter) {
+ be_emit_cstring("+12");
+ } else {
+ be_emit_cstring("+8");
+ }
be_emit_finish_line_gas(node);
fill_delay_slot();
}
static void emit_sparc_fbfcc(const ir_node *node)
{
+ /* if the flags producing node was immediately in front of us, emit
+ * a nop */
+ ir_node *flags = get_irn_n(node, n_sparc_fbfcc_flags);
+ ir_node *prev = sched_prev(node);
+ if (is_Block(prev)) {
+ /* TODO: when the flags come from another block, then we have to do
+ * more complicated tests to see wether the flag producing node is
+ * potentially in front of us (could happen for fallthroughs) */
+ panic("TODO: fbfcc flags come from other block");
+ }
+ if (skip_Proj(flags) == prev) {
+ be_emit_cstring("\tnop\n");
+ }
emit_sparc_branch(node, get_fcc);
}
be_emit_finish_line_gas(node);
}
-static void emit_jump_table(const ir_node *node)
+static void emit_sparc_SwitchJmp(const ir_node *node)
{
const sparc_switch_jmp_attr_t *attr = get_sparc_switch_jmp_attr_const(node);
- long switch_max = LONG_MIN;
- long default_pn = attr->default_proj_num;
- ir_entity *entity = attr->jump_table;
- ir_node *default_block = NULL;
- unsigned long length;
- const ir_edge_t *edge;
- unsigned i;
- ir_node **table;
-
- /* go over all proj's and collect them */
- foreach_out_edge(node, edge) {
- ir_node *proj = get_edge_src_irn(edge);
- long pn = get_Proj_proj(proj);
- /* check for default proj */
- if (pn == default_pn) {
- assert(default_block == NULL); /* more than 1 default_pn? */
- default_block = get_jump_target(proj);
- } else {
- switch_max = pn > switch_max ? pn : switch_max;
- }
- }
- assert(switch_max > LONG_MIN);
-
- length = (unsigned long) switch_max + 1;
- /* the 16000 isn't a real limit of the architecture. But should protect us
- * from seamingly endless compiler runs */
- if (length > 16000) {
- /* switch lowerer should have broken this monster to pieces... */
- panic("too large switch encountered");
- }
-
- table = XMALLOCNZ(ir_node*, length);
- foreach_out_edge(node, edge) {
- ir_node *proj = get_edge_src_irn(edge);
- long pn = get_Proj_proj(proj);
- if (pn == default_pn)
- continue;
-
- table[pn] = get_jump_target(proj);
- }
-
- /* emit table */
- be_gas_emit_switch_section(GAS_SECTION_RODATA);
- be_emit_cstring("\t.align 4\n");
- be_gas_emit_entity(entity);
- be_emit_cstring(":\n");
- for (i = 0; i < length; ++i) {
- ir_node *block = table[i];
- if (block == NULL)
- block = default_block;
- be_emit_cstring("\t.long ");
- be_gas_emit_block_name(block);
- be_emit_char('\n');
- be_emit_write_line();
- }
- be_gas_emit_switch_section(GAS_SECTION_TEXT);
-
- xfree(table);
-}
-
-static void emit_sparc_SwitchJmp(const ir_node *node)
-{
be_emit_cstring("\tjmp ");
sparc_emit_source_register(node, 0);
be_emit_finish_line_gas(node);
fill_delay_slot();
- emit_jump_table(node);
+ emit_jump_table(node, attr->default_proj_num, attr->jump_table,
+ get_jump_target);
}
static void emit_fmov(const ir_node *node, const arch_register_t *src_reg,
static const arch_register_t *get_next_fp_reg(const arch_register_t *reg)
{
- unsigned index = reg->global_index;
- assert(reg == &sparc_registers[index]);
- index++;
- assert(index - REG_F0 < N_sparc_fp_REGS);
- return &sparc_registers[index];
+ unsigned idx = reg->global_index;
+ assert(reg == &sparc_registers[idx]);
+ idx++;
+ assert(idx - REG_F0 < N_sparc_fp_REGS);
+ return &sparc_registers[idx];
}
static void emit_be_Copy(const ir_node *node)
{
ir_mode *mode = get_irn_mode(node);
- const arch_register_t *src_reg = get_in_reg(node, 0);
- const arch_register_t *dst_reg = get_out_reg(node, 0);
+ const arch_register_t *src_reg = arch_get_irn_register_in(node, 0);
+ const arch_register_t *dst_reg = arch_get_irn_register_out(node, 0);
if (src_reg == dst_reg)
return;
set_emitter(op_be_IncSP, emit_be_IncSP);
set_emitter(op_be_MemPerm, emit_be_MemPerm);
set_emitter(op_be_Perm, emit_be_Perm);
- set_emitter(op_be_Return, emit_be_Return);
set_emitter(op_sparc_Ba, emit_sparc_Ba);
set_emitter(op_sparc_Bicc, emit_sparc_Bicc);
set_emitter(op_sparc_Call, emit_sparc_Call);
set_emitter(op_sparc_fbfcc, emit_sparc_fbfcc);
set_emitter(op_sparc_FrameAddr, emit_sparc_FrameAddr);
set_emitter(op_sparc_Mulh, emit_sparc_Mulh);
+ set_emitter(op_sparc_Return, emit_sparc_Return);
set_emitter(op_sparc_SDiv, emit_sparc_SDiv);
set_emitter(op_sparc_SwitchJmp, emit_sparc_SwitchJmp);
set_emitter(op_sparc_UDiv, emit_sparc_UDiv);
/* no need to emit anything for the following nodes */
- set_emitter(op_be_Keep, emit_nothing);
- set_emitter(op_be_Start, emit_nothing);
- set_emitter(op_Phi, emit_nothing);
+ set_emitter(op_be_Keep, emit_nothing);
+ set_emitter(op_sparc_Start, emit_nothing);
+ set_emitter(op_Phi, emit_nothing);
}
/**
projects / libfirm / blobdiff