DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
+typedef struct reg_info_t {
+ size_t offset;
+ ir_node *irn;
+} reg_info_t;
+
static const arch_register_t *sp_reg = &sparc_registers[REG_SP];
static const arch_register_t *fp_reg = &sparc_registers[REG_FRAME_POINTER];
static calling_convention_t *current_cconv = NULL;
static ir_mode *mode_fp2;
//static ir_mode *mode_fp4;
static pmap *node_to_stack;
-static size_t start_mem_offset;
-static ir_node *start_mem;
-static size_t start_g0_offset;
-static ir_node *start_g0;
-static size_t start_g7_offset;
-static ir_node *start_g7;
-static size_t start_sp_offset;
-static ir_node *start_sp;
-static size_t start_fp_offset;
-static ir_node *start_fp;
+static reg_info_t start_mem;
+static reg_info_t start_g0;
+static reg_info_t start_g7;
+static reg_info_t start_sp;
+static reg_info_t start_fp;
static ir_node *frame_base;
static size_t start_params_offset;
static size_t start_callee_saves_offset;
}
-static ir_node *get_g0(ir_graph *irg)
+static ir_node *get_reg(ir_graph *const irg, reg_info_t *const reg)
{
- if (start_g0 == NULL) {
+ if (!reg->irn) {
/* this is already the transformed start node */
- ir_node *start = get_irg_start(irg);
+ ir_node *const start = get_irg_start(irg);
assert(is_sparc_Start(start));
- start_g0 = new_r_Proj(start, mode_gp, start_g0_offset);
+ arch_register_class_t const *const cls = arch_get_irn_register_req_out(start, reg->offset)->cls;
+ reg->irn = new_r_Proj(start, cls ? cls->mode : mode_M, reg->offset);
}
- return start_g0;
+ return reg->irn;
+}
+
+static ir_node *get_g0(ir_graph *irg)
+{
+ return get_reg(irg, &start_g0);
}
static ir_node *get_g7(ir_graph *irg)
{
- if (start_g7 == NULL) {
- ir_node *start = get_irg_start(irg);
- assert(is_sparc_Start(start));
- start_g7 = new_r_Proj(start, mode_gp, start_g7_offset);
- }
- return start_g7;
+ return get_reg(irg, &start_g7);
}
static ir_node *make_tls_offset(dbg_info *dbgi, ir_node *block,
case pn_sparc_AddCC_t_flags:
return new_r_Proj(new_pred, mode_flags, pn_sparc_AddCC_flags);
default:
- panic("Invalid AddCC_t proj found");
+ panic("Invalid proj found");
}
}
case pn_sparc_SubCC_t_flags:
return new_r_Proj(new_pred, mode_flags, pn_sparc_SubCC_flags);
default:
- panic("Invalid SubCC_t proj found");
+ panic("Invalid proj found");
}
}
address_t address;
if (get_Load_unaligned(node) == align_non_aligned) {
- panic("sparc: transformation of unaligned Loads not implemented yet");
+ panic("transformation of unaligned Loads not implemented yet");
}
if (mode_is_float(mode)) {
address_t address;
if (get_Store_unaligned(node) == align_non_aligned) {
- panic("sparc: transformation of unaligned Stores not implemented yet");
+ panic("transformation of unaligned Stores not implemented yet");
}
if (mode_is_float(mode)) {
{
ir_mode *mode = get_irn_mode(node);
if (get_mode_modulo_shift(mode) != 32)
- panic("modulo_shift!=32 not supported by sparc backend");
+ panic("modulo_shift!=32 not supported");
return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sll_reg, new_bd_sparc_Sll_imm);
}
{
ir_mode *mode = get_irn_mode(node);
if (get_mode_modulo_shift(mode) != 32)
- panic("modulo_shift!=32 not supported by sparc backend");
+ panic("modulo_shift!=32 not supported");
return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Srl_reg, new_bd_sparc_Srl_imm);
}
{
ir_mode *mode = get_irn_mode(node);
if (get_mode_modulo_shift(mode) != 32)
- panic("modulo_shift!=32 not supported by sparc backend");
+ panic("modulo_shift!=32 not supported");
return gen_helper_binop(node, MATCH_NONE, new_bd_sparc_Sra_reg, new_bd_sparc_Sra_imm);
}
panic("Unexpected Unknown mode");
}
+static void make_start_out(reg_info_t *const info, struct obstack *const obst, ir_node *const start, size_t const offset, arch_register_t const *const reg, arch_register_req_type_t const flags)
+{
+ info->offset = offset;
+ info->irn = NULL;
+ arch_register_req_t const *const req = be_create_reg_req(obst, reg, arch_register_req_type_ignore | flags);
+ arch_set_irn_register_req_out(start, offset, req);
+ arch_set_irn_register_out(start, offset, reg);
+}
+
/**
* transform the start node to the prolog code
*/
ir_node *new_block = be_transform_node(block);
dbg_info *dbgi = get_irn_dbg_info(node);
struct obstack *obst = be_get_be_obst(irg);
- const arch_register_req_t *req;
size_t n_outs;
ir_node *start;
size_t i;
- size_t o;
/* start building list of start constraints */
- assert(obstack_object_size(obst) == 0);
/* calculate number of outputs */
n_outs = 4; /* memory, g0, g7, sp */
start = new_bd_sparc_Start(dbgi, new_block, n_outs);
- o = 0;
+ size_t o = 0;
/* first output is memory */
- start_mem_offset = o;
+ start_mem.offset = o;
+ start_mem.irn = NULL;
arch_set_irn_register_req_out(start, o, arch_no_register_req);
++o;
/* the zero register */
- start_g0_offset = o;
- req = be_create_reg_req(obst, &sparc_registers[REG_G0],
- arch_register_req_type_ignore);
- arch_set_irn_register_req_out(start, o, req);
- arch_set_irn_register_out(start, o, &sparc_registers[REG_G0]);
- ++o;
+ make_start_out(&start_g0, obst, start, o++, &sparc_registers[REG_G0], arch_register_req_type_none);
/* g7 is used for TLS data */
- start_g7_offset = o;
- req = be_create_reg_req(obst, &sparc_registers[REG_G7],
- arch_register_req_type_ignore);
- arch_set_irn_register_req_out(start, o, req);
- arch_set_irn_register_out(start, o, &sparc_registers[REG_G7]);
- ++o;
+ make_start_out(&start_g7, obst, start, o++, &sparc_registers[REG_G7], arch_register_req_type_none);
/* we need an output for the stackpointer */
- start_sp_offset = o;
- req = be_create_reg_req(obst, sp_reg,
- arch_register_req_type_produces_sp | arch_register_req_type_ignore);
- arch_set_irn_register_req_out(start, o, req);
- arch_set_irn_register_out(start, o, sp_reg);
- ++o;
+ make_start_out(&start_sp, obst, start, o++, sp_reg, arch_register_req_type_produces_sp);
if (!current_cconv->omit_fp) {
- start_fp_offset = o;
- req = be_create_reg_req(obst, fp_reg, arch_register_req_type_ignore);
- arch_set_irn_register_req_out(start, o, req);
- arch_set_irn_register_out(start, o, fp_reg);
- ++o;
+ make_start_out(&start_fp, obst, start, o++, fp_reg, arch_register_req_type_none);
}
/* function parameters in registers */
static ir_node *get_initial_sp(ir_graph *irg)
{
- if (start_sp == NULL) {
- ir_node *start = get_irg_start(irg);
- start_sp = new_r_Proj(start, mode_gp, start_sp_offset);
- }
- return start_sp;
+ return get_reg(irg, &start_sp);
}
static ir_node *get_initial_fp(ir_graph *irg)
{
- if (start_fp == NULL) {
- ir_node *start = get_irg_start(irg);
- start_fp = new_r_Proj(start, mode_gp, start_fp_offset);
- }
- return start_fp;
+ return get_reg(irg, &start_fp);
}
static ir_node *get_initial_mem(ir_graph *irg)
{
- if (start_mem == NULL) {
- ir_node *start = get_irg_start(irg);
- start_mem = new_r_Proj(start, mode_M, start_mem_offset);
- }
- return start_mem;
+ return get_reg(irg, &start_mem);
}
static ir_node *get_stack_pointer_for(ir_node *node)
}
assert(result_info->req1 == NULL);
}
+ const unsigned *allocatable_regs = be_birg_from_irg(irg)->allocatable_regs;
for (i = 0; i < N_SPARC_REGISTERS; ++i) {
const arch_register_t *reg;
if (!rbitset_is_set(cconv->caller_saves, i))
continue;
reg = &sparc_registers[i];
- arch_set_irn_register_req_out(res, o++, reg->single_req);
+ arch_set_irn_register_req_out(res, o, reg->single_req);
+ if (!rbitset_is_set(allocatable_regs, reg->global_index))
+ arch_set_irn_register_out(res, o, reg);
+ ++o;
}
assert(o == out_arity);
ir_type *type = get_Alloc_type(node);
ir_node *size = get_Alloc_count(node);
ir_node *stack_pred = get_stack_pointer_for(node);
+ ir_node *mem = get_Alloc_mem(node);
+ ir_node *new_mem = be_transform_node(mem);
ir_node *subsp;
+
if (get_Alloc_where(node) != stack_alloc)
panic("only stack-alloc supported in sparc backend (at %+F)", node);
/* lowerer should have transformed all allocas to byte size */
if (is_Const(size)) {
ir_tarval *tv = get_Const_tarval(size);
long sizel = get_tarval_long(tv);
- subsp = be_new_IncSP(sp_reg, new_block, stack_pred, sizel, 0);
- set_irn_dbg_info(subsp, dbgi);
+
+ assert((sizel & (SPARC_STACK_ALIGNMENT - 1)) == 0 && "Found Alloc with misaligned constant");
+ subsp = new_bd_sparc_SubSP_imm(dbgi, new_block, stack_pred, new_mem, NULL, sizel);
} else {
ir_node *new_size = be_transform_node(size);
- subsp = new_bd_sparc_SubSP(dbgi, new_block, stack_pred, new_size);
- arch_set_irn_register(subsp, sp_reg);
+ subsp = new_bd_sparc_SubSP_reg(dbgi, new_block, stack_pred, new_size, new_mem);
}
- /* if we are the last IncSP producer in a block then we have to keep
- * the stack value.
- * Note: This here keeps all producers which is more than necessary */
- keep_alive(subsp);
+ ir_node *stack_proj = new_r_Proj(subsp, mode_gp, pn_sparc_SubSP_stack);
+ arch_set_irn_register(stack_proj, sp_reg);
+ /* If we are the last stack producer in a block, we have to keep the
+ * stack value. This keeps all producers, which is more than necessary. */
+ keep_alive(stack_proj);
- pmap_insert(node_to_stack, node, subsp);
- /* the "result" is the unmodified sp value */
- return stack_pred;
+ pmap_insert(node_to_stack, node, stack_proj);
+
+ return subsp;
}
static ir_node *gen_Proj_Alloc(ir_node *node)
{
- ir_node *alloc = get_Proj_pred(node);
- long pn = get_Proj_proj(node);
+ ir_node *alloc = get_Proj_pred(node);
+ ir_node *new_alloc = be_transform_node(alloc);
+ long pn = get_Proj_proj(node);
switch ((pn_Alloc)pn) {
- case pn_Alloc_M: {
- ir_node *alloc_mem = get_Alloc_mem(alloc);
- return be_transform_node(alloc_mem);
- }
+ case pn_Alloc_M:
+ return new_r_Proj(new_alloc, mode_M, pn_sparc_SubSP_M);
case pn_Alloc_res: {
- ir_node *new_alloc = be_transform_node(alloc);
- return new_alloc;
+ ir_node *addr_proj = new_r_Proj(new_alloc, mode_gp, pn_sparc_SubSP_addr);
+ arch_set_irn_register(addr_proj, arch_get_irn_register(node));
+ return addr_proj;
}
case pn_Alloc_X_regular:
case pn_Alloc_X_except:
- panic("sparc backend: exception output of alloc not supported (at %+F)",
+ panic("exception output of alloc not supported (at %+F)",
node);
}
- panic("sparc backend: invalid Proj->Alloc");
+ panic("invalid Proj->Alloc");
}
static ir_node *gen_Free(ir_node *node)
panic("Unsupported Proj from Store");
}
-/**
- * Transform the Projs from a Cmp.
- */
-static ir_node *gen_Proj_Cmp(ir_node *node)
-{
- (void) node;
- panic("not implemented");
-}
-
/**
* transform Projs from a Div
*/
} else if (is_sparc_fdiv(new_pred)) {
res_mode = get_Div_resmode(pred);
} else {
- panic("sparc backend: Div transformed to something unexpected: %+F",
+ panic("Div transformed to something unexpected: %+F",
new_pred);
}
assert((int)pn_sparc_SDiv_res == (int)pn_sparc_UDiv_res);
return gen_Proj_Load(node);
case iro_Call:
return gen_Proj_Call(node);
- case iro_Cmp:
- return gen_Proj_Cmp(node);
case iro_Switch:
case iro_Cond:
return be_duplicate_node(node);
mode_flags = sparc_reg_classes[CLASS_sparc_flags_class].mode;
assert(sparc_reg_classes[CLASS_sparc_fpflags_class].mode == mode_flags);
- start_mem = NULL;
- start_g0 = NULL;
- start_g7 = NULL;
- start_sp = NULL;
- start_fp = NULL;
frame_base = NULL;
stackorder = be_collect_stacknodes(irg);
projects / libfirm / blobdiff