#include "adt/error.h"
#include "adt/array.h"
+#include "adt/util.h"
#include "symbol_t.h"
#include "token_t.h"
#include "type_t.h"
#include "driver/firm_opt.h"
#include "driver/firm_cmdline.h"
+typedef struct trampoline_region trampoline_region;
+struct trampoline_region {
+ ir_entity *function; /**< The function that is called by this trampoline */
+ ir_entity *region; /**< created region for the trampoline */
+};
+
+static const backend_params *be_params;
+
+static ir_type *ir_type_char;
static ir_type *ir_type_const_char;
static ir_type *ir_type_wchar_t;
static ir_type *ir_type_void;
static ir_type *ir_type_int;
+/* architecture specific floating point arithmetic mode (if any) */
+static ir_mode *mode_float_arithmetic;
+
+/* alignment of stack parameters */
+static unsigned stack_param_align;
+
static int next_value_number_function;
static ir_node *continue_label;
static ir_node *break_label;
static switch_statement_t *current_switch;
static ir_graph *current_function;
static translation_unit_t *current_translation_unit;
+static trampoline_region *current_trampolines;
+static ir_type *current_outer_frame;
+static ir_type *current_outer_value_type;
+static ir_node *current_static_link;
static entitymap_t entitymap;
DECLARATION_KIND_INNER_FUNCTION
} declaration_kind_t;
-static ir_mode *get_ir_mode(type_t *type);
+static ir_mode *get_ir_mode_storage(type_t *type);
+/*
+ * get arithmetic mode for a type. This is different from get_ir_mode_storage,
+ * int that it returns bigger modes for floating point on some platforms
+ * (x87 internally does arithemtic with 80bits)
+ */
+static ir_mode *get_ir_mode_arithmetic(type_t *type);
+
static ir_type *get_ir_type_incomplete(type_t *type);
static void enqueue_inner_function(entity_t *entity)
{
+ if (inner_functions == NULL)
+ inner_functions = NEW_ARR_F(entity_t *, 0);
ARR_APP1(entity_t*, inner_functions, entity);
}
-static entity_t *next_inner_function(void)
-{
- int len = ARR_LEN(inner_functions);
- if (len == 0)
- return NULL;
-
- entity_t *entity = inner_functions[len-1];
- ARR_SHRINKLEN(inner_functions, len-1);
-
- return entity;
-}
-
ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos)
{
const entity_t *entity = get_irg_loc_description(irg, pos);
return atomic_modes[kind];
}
-static unsigned get_compound_type_size(compound_type_t *type)
-{
- ir_type *irtype = get_ir_type((type_t*) type);
- return get_type_size_bytes(irtype);
-}
-
-static unsigned get_array_type_size(array_type_t *type)
+static ir_node *get_vla_size(array_type_t *const type)
{
- assert(!type->is_vla);
- ir_type *irtype = get_ir_type((type_t*) type);
- return get_type_size_bytes(irtype);
-}
-
-static unsigned get_type_size_const(type_t *type)
-{
- switch(type->kind) {
- case TYPE_ERROR:
- panic("error type occurred");
- case TYPE_ATOMIC:
- return get_atomic_type_size(type->atomic.akind);
- case TYPE_COMPLEX:
- return 2 * get_atomic_type_size(type->complex.akind);
- case TYPE_IMAGINARY:
- return get_atomic_type_size(type->imaginary.akind);
- case TYPE_ENUM:
- return get_mode_size_bytes(mode_int);
- case TYPE_COMPOUND_UNION:
- case TYPE_COMPOUND_STRUCT:
- return get_compound_type_size(&type->compound);
- case TYPE_FUNCTION:
- /* just a pointer to the function */
- return get_mode_size_bytes(mode_P_code);
- case TYPE_POINTER:
- case TYPE_REFERENCE:
- return get_mode_size_bytes(mode_P_data);
- case TYPE_ARRAY:
- return get_array_type_size(&type->array);
- case TYPE_BUILTIN:
- return get_type_size_const(type->builtin.real_type);
- case TYPE_BITFIELD:
- panic("type size of bitfield request");
- case TYPE_TYPEDEF:
- case TYPE_TYPEOF:
- case TYPE_INVALID:
- break;
+ ir_node *size_node = type->size_node;
+ if (size_node == NULL) {
+ size_node = expression_to_firm(type->size_expression);
+ type->size_node = size_node;
}
- panic("Trying to determine size of invalid type");
+ return size_node;
}
+/**
+ * Return a node representing the size of a type.
+ */
static ir_node *get_type_size(type_t *type)
{
type = skip_typeref(type);
if (is_type_array(type) && type->array.is_vla) {
- ir_node *size_node = type->array.size_node;
- if (size_node == NULL) {
- size_node = expression_to_firm(type->array.size_expression);
- type->array.size_node = size_node;
- }
-
+ ir_node *size_node = get_vla_size(&type->array);
ir_node *elem_size = get_type_size(type->array.element_type);
ir_mode *mode = get_irn_mode(size_node);
ir_node *real_size = new_d_Mul(NULL, size_node, elem_size, mode);
return real_size;
}
- ir_mode *mode = get_ir_mode(type_size_t);
+ ir_mode *mode = get_ir_mode_storage(type_size_t);
symconst_symbol sym;
sym.type_p = get_ir_type(type);
return new_SymConst(mode, sym, symconst_type_size);
return count;
}
+static type_t *get_aligned_type(type_t *type, int alignment)
+{
+ if (alignment == 0)
+ return type;
+
+ type = skip_typeref(type);
+ if (alignment > type->base.alignment) {
+ type_t *copy = duplicate_type(type);
+ copy->base.alignment = alignment;
+ type = identify_new_type(copy);
+ }
+ return type;
+}
+
/**
* Creates a Firm type for an atomic type
*/
-static ir_type *create_atomic_type(const atomic_type_t *type)
+static ir_type *create_atomic_type(atomic_type_kind_t akind, int alignment)
{
- atomic_type_kind_t kind = type->akind;
- ir_mode *mode = atomic_modes[kind];
+ ir_mode *mode = atomic_modes[akind];
ident *id = get_mode_ident(mode);
ir_type *irtype = new_type_primitive(id, mode);
- set_type_alignment_bytes(irtype, type->base.alignment);
+ set_type_alignment_bytes(irtype, alignment);
return irtype;
}
return type;
}
-static ir_type *create_method_type(const function_type_t *function_type)
+static ir_type *create_method_type(const function_type_t *function_type, bool for_closure)
{
type_t *return_type = skip_typeref(function_type->return_type);
ident *id = id_unique("functiontype.%u");
- int n_parameters = count_parameters(function_type);
+ int n_parameters = count_parameters(function_type) + (for_closure ? 1 : 0);
int n_results = return_type == type_void ? 0 : 1;
ir_type *irtype = new_type_method(id, n_parameters, n_results);
function_parameter_t *parameter = function_type->parameters;
int n = 0;
+ if (for_closure) {
+ ir_type *p_irtype = get_ir_type(type_void_ptr);
+ set_method_param_type(irtype, n, p_irtype);
+ ++n;
+ }
for ( ; parameter != NULL; parameter = parameter->next) {
type_t *type = get_parameter_type(parameter->type);
ir_type *p_irtype = get_ir_type(type);
break;
}
+ if (for_closure)
+ set_method_calling_convention(irtype, get_method_calling_convention(irtype) | cc_this_call);
+
return irtype;
}
symbol_t *symbol = entry->base.symbol;
type_t *entry_type = skip_typeref(entry->declaration.type);
+ entry_type
+ = get_aligned_type(entry_type, entry->compound_member.alignment);
dbg_info *dbgi = get_dbg_info(&entry->base.source_position);
ident *ident;
constant_folding = constant_folding_old;
- return ir_type_int;
+ return create_atomic_type(type->akind, type->base.alignment);
}
static ir_type *get_ir_type_incomplete(type_t *type)
switch (type->kind) {
case TYPE_ERROR:
/* Happens while constant folding, when there was an error */
- return create_atomic_type(&type_void->atomic);
+ return create_atomic_type(ATOMIC_TYPE_VOID, 0);
case TYPE_ATOMIC:
- firm_type = create_atomic_type(&type->atomic);
+ firm_type = create_atomic_type(type->atomic.akind,
+ type->base.alignment);
break;
case TYPE_COMPLEX:
firm_type = create_complex_type(&type->complex);
firm_type = create_imaginary_type(&type->imaginary);
break;
case TYPE_FUNCTION:
- firm_type = create_method_type(&type->function);
+ firm_type = create_method_type(&type->function, false);
break;
case TYPE_POINTER:
firm_type = create_pointer_type(&type->pointer);
return firm_type;
}
-ir_mode *get_ir_mode(type_t *type)
+static ir_mode *get_ir_mode_storage(type_t *type)
{
ir_type *irtype = get_ir_type(type);
return mode;
}
+static ir_mode *get_ir_mode_arithmetic(type_t *type)
+{
+ ir_mode *mode = get_ir_mode_storage(type);
+ if (mode_is_float(mode) && mode_float_arithmetic != NULL) {
+ return mode_float_arithmetic;
+ }
+
+ return mode;
+}
+
/** Names of the runtime functions. */
static const struct {
int id; /**< the rts id */
{ rts_coshl, 1, "coshl", 1, _C99 },
{ rts_tanhl, 1, "tanhl", 1, _C99 },
+ { rts_strcmp, 1, "strcmp", 2, _C89 },
+ { rts_strncmp, 1, "strncmp", 3, _C89 },
+ { rts_strcpy, 1, "strcpy", 2, _C89 },
+ { rts_strlen, 1, "strlen", 1, _C89 },
{ rts_memcpy, 1, "memcpy", 3, _C89 }, /* HMM, man say its C99 */
+ { rts_mempcpy, 1, "mempcpy", 3, _GNUC },
+ { rts_memmove, 1, "memmove", 3, _C89 }, /* HMM, man say its C99 */
{ rts_memset, 1, "memset", 3, _C89 }, /* HMM, man say its C99 */
- { rts_strcmp, 1, "strcmp", 2, _C89 },
- { rts_strncmp, 1, "strncmp", 3, _C89 }
+ { rts_memcmp, 1, "memcmp", 3, _C89 }, /* HMM, man say its C99 */
};
-static ident *rts_idents[sizeof(rts_data) / sizeof(rts_data[0])];
+static ident *rts_idents[lengthof(rts_data)];
static ident* (*create_ld_ident)(entity_t*) = create_name_linux_elf;
* Creates an entity representing a function.
*
* @param declaration the function declaration
+ * @param owner_type the owner type of this function, NULL
+ * for global functions
*/
-static ir_entity *get_function_entity(entity_t *entity)
+static ir_entity *get_function_entity(entity_t *entity, ir_type *owner_type)
{
assert(entity->kind == ENTITY_FUNCTION);
if (entity->function.entity != NULL) {
if (type->function.linkage != LINKAGE_C) {
type_t *new_type = duplicate_type(type);
new_type->function.linkage = LINKAGE_C;
-
- type = typehash_insert(new_type);
- if (type != new_type) {
- obstack_free(type_obst, new_type);
- }
- entity->declaration.type = type;
+ type = identify_new_type(new_type);
+ entity->declaration.type = type;
}
}
symbol_t *symbol = entity->base.symbol;
ident *id = new_id_from_str(symbol->string);
- ir_type *global_type = get_glob_type();
- ir_type *ir_type_method = get_ir_type(entity->declaration.type);
- bool const has_body = entity->function.statement != NULL;
/* already an entity defined? */
ir_entity *irentity = entitymap_get(&entitymap, symbol);
+ bool const has_body = entity->function.statement != NULL;
if (irentity != NULL) {
if (get_entity_visibility(irentity) == visibility_external_allocated
&& has_body) {
goto entity_created;
}
+ ir_type *ir_type_method;
+ if (entity->function.need_closure)
+ ir_type_method = create_method_type(&entity->declaration.type->function, true);
+ else
+ ir_type_method = get_ir_type(entity->declaration.type);
+
+ bool nested_function = false;
+ if (owner_type == NULL)
+ owner_type = get_glob_type();
+ else
+ nested_function = true;
+
dbg_info *const dbgi = get_dbg_info(&entity->base.source_position);
- irentity = new_d_entity(global_type, id, ir_type_method, dbgi);
- set_entity_ld_ident(irentity, create_ld_ident(entity));
+ irentity = new_d_entity(owner_type, id, ir_type_method, dbgi);
+
+ ident *ld_id;
+ if (nested_function)
+ ld_id = id_unique("inner.%u");
+ else
+ ld_id = create_ld_ident(entity);
+ set_entity_ld_ident(irentity, ld_id);
handle_gnu_attributes_ent(irentity, entity);
- /* static inline => local
- * extern inline => local
- * inline without definition => local
- * inline with definition => external_visible */
- storage_class_tag_t const storage_class
- = (storage_class_tag_t) entity->declaration.storage_class;
- bool const is_inline = entity->function.is_inline;
- if (is_inline && storage_class == STORAGE_CLASS_NONE && has_body) {
- set_entity_visibility(irentity, visibility_external_visible);
- } else if (storage_class == STORAGE_CLASS_STATIC ||
- (is_inline && has_body)) {
- if (!has_body) {
- /* this entity was declared, but is defined nowhere */
- set_entity_peculiarity(irentity, peculiarity_description);
+ if (! nested_function) {
+ /* static inline => local
+ * extern inline => local
+ * inline without definition => local
+ * inline with definition => external_visible */
+ storage_class_tag_t const storage_class
+ = (storage_class_tag_t) entity->declaration.storage_class;
+ bool const is_inline = entity->function.is_inline;
+
+ if (is_inline && storage_class == STORAGE_CLASS_NONE && has_body) {
+ set_entity_visibility(irentity, visibility_external_visible);
+ } else if (storage_class == STORAGE_CLASS_STATIC ||
+ (is_inline && has_body)) {
+ if (!has_body) {
+ /* this entity was declared, but is defined nowhere */
+ set_entity_peculiarity(irentity, peculiarity_description);
+ }
+ set_entity_visibility(irentity, visibility_local);
+ } else if (has_body) {
+ set_entity_visibility(irentity, visibility_external_visible);
+ } else {
+ set_entity_visibility(irentity, visibility_external_allocated);
}
- set_entity_visibility(irentity, visibility_local);
- } else if (has_body) {
- set_entity_visibility(irentity, visibility_external_visible);
} else {
- set_entity_visibility(irentity, visibility_external_allocated);
+ /* nested functions are always local */
+ set_entity_visibility(irentity, visibility_local);
}
set_entity_allocation(irentity, allocation_static);
/* We should check for file scope here, but as long as we compile C only
this is not needed. */
- if (! firm_opt.freestanding) {
+ if (! firm_opt.freestanding && !has_body) {
/* check for a known runtime function */
- for (size_t i = 0; i < sizeof(rts_data) / sizeof(rts_data[0]); ++i) {
+ for (size_t i = 0; i < lengthof(rts_data); ++i) {
if (id != rts_idents[i])
continue;
return irentity;
}
+static ir_node *create_conv(dbg_info *dbgi, ir_node *value, ir_mode *dest_mode)
+{
+ ir_mode *value_mode = get_irn_mode(value);
+
+ if (value_mode == dest_mode || is_Bad(value))
+ return value;
+
+ if (dest_mode == mode_b) {
+ ir_node *zero = new_Const(get_mode_null(value_mode));
+ ir_node *cmp = new_d_Cmp(dbgi, value, zero);
+ ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pn_Cmp_Lg);
+ return proj;
+ }
+
+ return new_d_Conv(dbgi, value, dest_mode);
+}
+
/**
* Creates a Const node representing a constant.
*/
static ir_node *const_to_firm(const const_expression_t *cnst)
{
dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
- ir_mode *mode = get_ir_mode(cnst->base.type);
+ type_t *type = skip_typeref(cnst->base.type);
+ ir_mode *mode = get_ir_mode_storage(type);
char buf[128];
tarval *tv;
tv = new_tarval_from_str(buf, len, mode);
}
- return new_d_Const(dbgi, tv);
+ ir_node *res = new_d_Const(dbgi, tv);
+ ir_mode *mode_arith = get_ir_mode_arithmetic(type);
+ return create_conv(dbgi, res, mode_arith);
}
/**
static ir_node *character_constant_to_firm(const const_expression_t *cnst)
{
dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
- ir_mode *mode = get_ir_mode(cnst->base.type);
+ ir_mode *mode = get_ir_mode_arithmetic(cnst->base.type);
- long long int v = 0;
- for (size_t i = 0; i < cnst->v.character.size; ++i) {
- if (char_is_signed) {
- v = (v << 8) | ((signed char)cnst->v.character.begin[i]);
- } else {
+ long long int v;
+ size_t const size = cnst->v.character.size;
+ if (size == 1 && char_is_signed) {
+ v = (signed char)cnst->v.character.begin[0];
+ } else {
+ v = 0;
+ for (size_t i = 0; i < size; ++i) {
v = (v << 8) | ((unsigned char)cnst->v.character.begin[i]);
}
}
static ir_node *wide_character_constant_to_firm(const const_expression_t *cnst)
{
dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
- ir_mode *mode = get_ir_mode(cnst->base.type);
+ ir_mode *mode = get_ir_mode_arithmetic(cnst->base.type);
long long int v = cnst->v.wide_character.begin[0];
return new_d_Const(dbgi, tv);
}
+/*
+ * Allocate an area of size bytes aligned at alignment
+ * at a frame type.
+ */
+static ir_entity *alloc_trampoline(ir_type *frame_type, int size, unsigned alignment) {
+ static unsigned area_cnt = 0;
+ char buf[32];
+
+ snprintf(buf, sizeof(buf), "trampolin%u", area_cnt++);
+ ident *name = new_id_from_str(buf);
+
+ ir_type *tp = new_type_array(id_mangle_u(get_type_ident(frame_type), name), 1, ir_type_char);
+ set_array_bounds_int(tp, 0, 0, size);
+ set_type_alignment_bytes(tp, alignment);
+
+ ir_entity *area = new_entity(frame_type, name, tp);
+
+ /* mark this entity as compiler generated */
+ set_entity_compiler_generated(area, 1);
+ return area;
+}
+
+/**
+ * Return a node representing a trampoline reagion
+ * for a given entity.
+ *
+ * @param dbgi debug info
+ * @param entity the entity
+ */
+static ir_node *get_trampoline_region(dbg_info *dbgi, ir_entity *entity)
+{
+ ir_entity *region = NULL;
+ int i;
+
+ if (current_trampolines != NULL) {
+ for (i = ARR_LEN(current_trampolines) - 1; i >= 0; --i) {
+ if (current_trampolines[i].function == entity) {
+ region = current_trampolines[i].region;
+ break;
+ }
+ }
+ } else {
+ current_trampolines = NEW_ARR_F(trampoline_region, 0);
+ }
+ ir_graph *irg = current_ir_graph;
+ if (region == NULL) {
+ /* create a new region */
+ ir_type *frame_tp = get_irg_frame_type(irg);
+ trampoline_region reg;
+ reg.function = entity;
+
+ reg.region = alloc_trampoline(frame_tp,
+ be_params->trampoline_size,
+ be_params->trampoline_align);
+ ARR_APP1(trampoline_region, current_trampolines, reg);
+ region = reg.region;
+ }
+ return new_d_simpleSel(dbgi, get_irg_no_mem(irg), get_irg_frame(irg),
+ region);
+}
+
+
/**
* Creates a SymConst for a given entity.
*
* @param entity the entity
*/
static ir_node *create_symconst(dbg_info *dbgi, ir_mode *mode,
- ir_entity *entity)
+ ir_entity *entity)
{
assert(entity != NULL);
union symconst_symbol sym;
return new_d_SymConst(dbgi, mode, sym, symconst_addr_ent);
}
+/**
+ * Creates a SymConst for a given trampoline of an entity.
+ *
+ * @param dbgi debug info
+ * @param mode the (reference) mode for the SymConst
+ * @param entity the entity
+ */
+static ir_node *create_trampoline(dbg_info *dbgi, ir_mode *mode,
+ ir_entity *entity)
+{
+ assert(entity != NULL);
+ ir_node *in[3];
+ in[0] = get_trampoline_region(dbgi, entity);
+ in[1] = create_symconst(dbgi, mode, entity);
+ in[2] = get_irg_frame(current_ir_graph);
+
+ ir_node *irn = new_d_Builtin(dbgi, get_store(), ir_bk_inner_trampoline, 3, in, get_unknown_type());
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return new_Proj(irn, mode, pn_Builtin_1_result);
+}
+
/**
* Creates a SymConst node representing a string constant.
*
return create_symconst(dbgi, mode_P_data, entity);
}
+/**
+ * Dereference an address.
+ *
+ * @param dbgi debug info
+ * @param type the type of the dereferenced result (the points_to type)
+ * @param addr the address to dereference
+ */
static ir_node *deref_address(dbg_info *const dbgi, type_t *const type,
ir_node *const addr)
{
return addr;
}
+ ir_cons_flags flags = type->base.qualifiers & TYPE_QUALIFIER_VOLATILE
+ ? cons_volatile : cons_none;
ir_mode *const mode = get_type_mode(irtype);
ir_node *const memory = get_store();
- ir_node *const load = new_d_Load(dbgi, memory, addr, mode);
+ ir_node *const load = new_d_Load(dbgi, memory, addr, mode, flags);
ir_node *const load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
ir_node *const load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
- if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE && !is_Bad(load)) {
- set_Load_volatility(load, volatility_is_volatile);
- }
-
set_store(load_mem);
- return load_res;
+
+ ir_mode *const mode_arithmetic = get_ir_mode_arithmetic(type);
+ return create_conv(dbgi, load_res, mode_arithmetic);
}
/**
- * Creates a strict Conv if neccessary.
+ * Creates a strict Conv (to the node's mode) if necessary.
+ *
+ * @param dbgi debug info
+ * @param node the node to strict conv
*/
static ir_node *do_strict_conv(dbg_info *dbgi, ir_node *node)
{
return new_d_strictConv(dbgi, node, mode);
}
+/**
+ * Returns the address of a global variable.
+ *
+ * @param dbgi debug info
+ * @param variable the variable
+ */
static ir_node *get_global_var_address(dbg_info *const dbgi,
- const entity_t *const entity)
+ const variable_t *const variable)
{
- assert(entity->kind == ENTITY_VARIABLE);
- assert(entity->declaration.kind == DECLARATION_KIND_GLOBAL_VARIABLE);
-
- ir_entity *const irentity = entity->variable.v.entity;
- if (entity->variable.thread_local) {
+ ir_entity *const irentity = variable->v.entity;
+ if (variable->thread_local) {
ir_node *const no_mem = new_NoMem();
ir_node *const tls = get_irg_tls(current_ir_graph);
return new_d_simpleSel(dbgi, no_mem, tls, irentity);
{
ir_graph *const irg = current_ir_graph;
const ir_type *const owner = get_entity_owner(ent);
- if (owner == get_irg_frame_type(irg)) {
- return get_irg_frame(irg);
+ if (owner == current_outer_frame || owner == current_outer_value_type) {
+ assert(current_static_link != NULL);
+ return current_static_link;
} else {
- assert(owner == get_method_value_param_type(get_entity_type(get_irg_entity(irg))));
- return get_irg_value_param_base(irg);
- }
-}
-
-static ir_node *create_conv(dbg_info *dbgi, ir_node *value, ir_mode *dest_mode)
-{
- ir_mode *value_mode = get_irn_mode(value);
-
- if (value_mode == dest_mode || is_Bad(value))
- return value;
-
- if (dest_mode == mode_b) {
- ir_node *zero = new_Const(get_mode_null(value_mode));
- ir_node *cmp = new_d_Cmp(dbgi, value, zero);
- ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pn_Cmp_Lg);
- return proj;
+ return get_irg_frame(irg);
}
-
- return new_d_Conv(dbgi, value, dest_mode);
}
/**
* Keep all memory edges of the given block.
*/
-static void keep_all_memory(ir_node *block) {
+static void keep_all_memory(ir_node *block)
+{
ir_node *old = get_cur_block();
set_cur_block(block);
break;
case DECLARATION_KIND_LOCAL_VARIABLE: {
- ir_mode *const mode = get_ir_mode(type);
- return get_value(entity->variable.v.value_number, mode);
+ ir_mode *const mode = get_ir_mode_storage(type);
+ ir_node *const value = get_value(entity->variable.v.value_number, mode);
+ return create_conv(NULL, value, get_ir_mode_arithmetic(type));
}
case DECLARATION_KIND_PARAMETER: {
- ir_mode *const mode = get_ir_mode(type);
- return get_value(entity->parameter.v.value_number, mode);
+ ir_mode *const mode = get_ir_mode_storage(type);
+ ir_node *const value = get_value(entity->parameter.v.value_number,mode);
+ return create_conv(NULL, value, get_ir_mode_arithmetic(type));
}
case DECLARATION_KIND_FUNCTION: {
- ir_mode *const mode = get_ir_mode(type);
+ ir_mode *const mode = get_ir_mode_storage(type);
+
+ if (entity->function.btk != bk_none) {
+ /* for gcc compatibility we have to produce (dummy) addresses for some
+ * builtins */
+ if (warning.other) {
+ warningf(&ref->base.source_position,
+ "taking address of builtin '%Y'", ref->entity->base.symbol);
+ }
+
+ /* simply create a NULL pointer */
+ ir_mode *mode = get_ir_mode_arithmetic(type_void_ptr);
+ ir_node *res = new_Const_long(mode, 0);
+
+ return res;
+ }
return create_symconst(dbgi, mode, entity->function.entity);
}
case DECLARATION_KIND_INNER_FUNCTION: {
- ir_mode *const mode = get_ir_mode(type);
+ ir_mode *const mode = get_ir_mode_storage(type);
if (!entity->function.goto_to_outer && !entity->function.need_closure) {
/* inner function not using the closure */
return create_symconst(dbgi, mode, entity->function.entity);
} else {
- /* TODO: need trampoline here */
- panic("Trampoline code not implemented");
- return create_symconst(dbgi, mode, entity->function.entity);
+ /* need trampoline here */
+ return create_trampoline(dbgi, mode, entity->function.entity);
}
}
case DECLARATION_KIND_GLOBAL_VARIABLE: {
- ir_node *const addr = get_global_var_address(dbgi, entity);
- return deref_address(dbgi, entity->declaration.type, addr);
+ const variable_t *variable = &entity->variable;
+ ir_node *const addr = get_global_var_address(dbgi, variable);
+ return deref_address(dbgi, variable->base.type, addr);
}
case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: {
* as an indicator for no real address) */
return NULL;
case DECLARATION_KIND_GLOBAL_VARIABLE: {
- ir_node *const addr = get_global_var_address(dbgi, entity);
+ ir_node *const addr = get_global_var_address(dbgi, &entity->variable);
return addr;
}
case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: {
case DECLARATION_KIND_FUNCTION: {
type_t *const type = skip_typeref(entity->declaration.type);
- ir_mode *const mode = get_ir_mode(type);
+ ir_mode *const mode = get_ir_mode_storage(type);
return create_symconst(dbgi, mode, entity->function.entity);
}
- case DECLARATION_KIND_INNER_FUNCTION:
+ case DECLARATION_KIND_INNER_FUNCTION: {
+ type_t *const type = skip_typeref(entity->declaration.type);
+ ir_mode *const mode = get_ir_mode_storage(type);
+ if (!entity->function.goto_to_outer && !entity->function.need_closure) {
+ /* inner function not using the closure */
+ return create_symconst(dbgi, mode, entity->function.entity);
+ } else {
+ /* need trampoline here */
+ return create_trampoline(dbgi, mode, entity->function.entity);
+ }
+ }
+
case DECLARATION_KIND_COMPOUND_MEMBER:
panic("not implemented reference type");
}
panic("reference to declaration with unknown type found");
}
+/**
+ * Generate an unary builtin.
+ *
+ * @param kind the builtin kind to generate
+ * @param op the operand
+ * @param function_type the function type for the GNU builtin routine
+ * @param db debug info
+ */
+static ir_node *gen_unary_builtin(ir_builtin_kind kind, expression_t *op, type_t *function_type, dbg_info *db)
+{
+ ir_node *in[1];
+ in[0] = expression_to_firm(op);
+
+ ir_type *tp = get_ir_type(function_type);
+ ir_type *res = get_method_res_type(tp, 0);
+ ir_node *irn = new_d_Builtin(db, get_irg_no_mem(current_ir_graph), kind, 1, in, tp);
+ set_irn_pinned(irn, op_pin_state_floats);
+ return new_Proj(irn, get_type_mode(res), pn_Builtin_1_result);
+}
+
+/**
+ * Generate a pinned unary builtin.
+ *
+ * @param kind the builtin kind to generate
+ * @param op the operand
+ * @param function_type the function type for the GNU builtin routine
+ * @param db debug info
+ */
+static ir_node *gen_unary_builtin_pinned(ir_builtin_kind kind, expression_t *op, type_t *function_type, dbg_info *db)
+{
+ ir_node *in[1];
+ in[0] = expression_to_firm(op);
+
+ ir_type *tp = get_ir_type(function_type);
+ ir_type *res = get_method_res_type(tp, 0);
+ ir_node *mem = get_store();
+ ir_node *irn = new_d_Builtin(db, mem, kind, 1, in, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return new_Proj(irn, get_type_mode(res), pn_Builtin_1_result);
+}
+
+
+/**
+ * Generate an binary-void-return builtin.
+ *
+ * @param kind the builtin kind to generate
+ * @param op1 the first operand
+ * @param op2 the second operand
+ * @param function_type the function type for the GNU builtin routine
+ * @param db debug info
+ */
+static ir_node *gen_binary_builtin_mem(ir_builtin_kind kind, expression_t *op1, expression_t *op2,
+ type_t *function_type, dbg_info *db)
+{
+ ir_node *in[2];
+ in[0] = expression_to_firm(op1);
+ in[1] = expression_to_firm(op2);
+
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *mem = get_store();
+ ir_node *irn = new_d_Builtin(db, mem, kind, 2, in, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return NULL;
+}
+
/**
* Transform calls to builtin functions.
*/
{
dbg_info *dbgi = get_dbg_info(&call->base.source_position);
- assert(call->function->kind == EXPR_BUILTIN_SYMBOL);
- builtin_symbol_expression_t *builtin = &call->function->builtin_symbol;
+ assert(call->function->kind == EXPR_REFERENCE);
+ reference_expression_t *builtin = &call->function->reference;
type_t *type = skip_typeref(builtin->base.type);
assert(is_type_pointer(type));
type_t *function_type = skip_typeref(type->pointer.points_to);
- symbol_t *symbol = builtin->symbol;
- switch(symbol->ID) {
- case T___builtin_alloca: {
+ switch (builtin->entity->function.btk) {
+ case bk_gnu_builtin_alloca: {
if (call->arguments == NULL || call->arguments->next != NULL) {
panic("invalid number of parameters on __builtin_alloca");
}
return res;
}
- case T___builtin_huge_val:
- case T___builtin_inf:
- case T___builtin_inff:
- case T___builtin_infl: {
- ir_mode *mode = get_ir_mode(function_type->function.return_type);
+ case bk_gnu_builtin_huge_val:
+ case bk_gnu_builtin_inf:
+ case bk_gnu_builtin_inff:
+ case bk_gnu_builtin_infl: {
+ type_t *type = function_type->function.return_type;
+ ir_mode *mode = get_ir_mode_arithmetic(type);
tarval *tv = get_mode_infinite(mode);
ir_node *res = new_d_Const(dbgi, tv);
return res;
}
- case T___builtin_nan:
- case T___builtin_nanf:
- case T___builtin_nanl: {
+ case bk_gnu_builtin_nan:
+ case bk_gnu_builtin_nanf:
+ case bk_gnu_builtin_nanl: {
/* Ignore string for now... */
assert(is_type_function(function_type));
- ir_mode *mode = get_ir_mode(function_type->function.return_type);
+ type_t *type = function_type->function.return_type;
+ ir_mode *mode = get_ir_mode_arithmetic(type);
tarval *tv = get_mode_NAN(mode);
ir_node *res = new_d_Const(dbgi, tv);
return res;
}
- case T___builtin_expect: {
+ case bk_gnu_builtin_expect: {
expression_t *argument = call->arguments->expression;
return _expression_to_firm(argument);
}
- case T___builtin_va_end:
+ case bk_gnu_builtin_va_end:
/* evaluate the argument of va_end for its side effects */
_expression_to_firm(call->arguments->expression);
return NULL;
+ case bk_gnu_builtin_frame_address: {
+ expression_t *const expression = call->arguments->expression;
+ long val = fold_constant(expression);
+ if (val == 0) {
+ /* the nice case */
+ return get_irg_frame(current_ir_graph);
+ } else {
+ /* get the argument */
+ ir_node *in[2];
+
+ in[0] = expression_to_firm(expression);
+ in[1] = get_irg_frame(current_ir_graph);
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_irg_no_mem(current_ir_graph), ir_bk_frame_addess, 2, in, tp);
+ return new_Proj(irn, mode_P_data, pn_Builtin_1_result);
+ }
+ }
+ case bk_gnu_builtin_return_address: {
+
+ expression_t *const expression = call->arguments->expression;
+ ir_node *in[2];
+
+ in[0] = expression_to_firm(expression);
+ in[1] = get_irg_frame(current_ir_graph);
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_irg_no_mem(current_ir_graph), ir_bk_return_address, 2, in, tp);
+ return new_Proj(irn, mode_P_data, pn_Builtin_1_result);
+ }
+ case bk_gnu_builtin_ffs:
+ return gen_unary_builtin(ir_bk_ffs, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_clz:
+ return gen_unary_builtin(ir_bk_clz, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_ctz:
+ return gen_unary_builtin(ir_bk_ctz, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_popcount:
+ case bk_ms__popcount:
+ return gen_unary_builtin(ir_bk_popcount, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_parity:
+ return gen_unary_builtin(ir_bk_parity, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_prefetch: {
+ call_argument_t *const args = call->arguments;
+ expression_t *const addr = args->expression;
+ ir_node *in[3];
+
+ in[0] = _expression_to_firm(addr);
+ if (args->next != NULL) {
+ expression_t *const rw = args->next->expression;
+
+ in[1] = _expression_to_firm(rw);
+
+ if (args->next->next != NULL) {
+ expression_t *const locality = args->next->next->expression;
+
+ in[2] = expression_to_firm(locality);
+ } else {
+ in[2] = new_Const_long(mode_int, 3);
+ }
+ } else {
+ in[1] = new_Const_long(mode_int, 0);
+ in[2] = new_Const_long(mode_int, 3);
+ }
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_store(), ir_bk_prefetch, 3, in, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return NULL;
+ }
+ case bk_gnu_builtin_trap:
+ case bk_ms__ud2:
+ {
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_store(), ir_bk_trap, 0, NULL, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return NULL;
+ }
+ case bk_ms__debugbreak: {
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_store(), ir_bk_debugbreak, 0, NULL, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return NULL;
+ }
+ case bk_ms_ReturnAddress: {
+ ir_node *in[2];
+
+ in[0] = new_Const_long(mode_int, 0);
+ in[1] = get_irg_frame(current_ir_graph);
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_irg_no_mem(current_ir_graph), ir_bk_return_address, 2, in, tp);
+ return new_Proj(irn, mode_P_data, pn_Builtin_1_result);
+ }
+ case bk_ms_rotl:
+ case bk_ms_rotl64: {
+ ir_node *val = expression_to_firm(call->arguments->expression);
+ ir_node *shf = expression_to_firm(call->arguments->next->expression);
+ ir_mode *mode = get_irn_mode(val);
+ return new_d_Rotl(dbgi, val, create_conv(dbgi, shf, mode_uint), mode);
+ }
+ case bk_ms_rotr:
+ case bk_ms_rotr64: {
+ ir_node *val = expression_to_firm(call->arguments->expression);
+ ir_node *shf = expression_to_firm(call->arguments->next->expression);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *c = new_Const_long(mode_uint, get_mode_size_bits(mode));
+ ir_node *sub = new_d_Sub(dbgi, c, create_conv(dbgi, shf, mode_uint), mode_uint);
+ return new_d_Rotl(dbgi, val, sub, mode);
+ }
+ case bk_ms_byteswap_ushort:
+ case bk_ms_byteswap_ulong:
+ case bk_ms_byteswap_uint64:
+ return gen_unary_builtin(ir_bk_bswap, call->arguments->expression, function_type, dbgi);
+ case bk_ms__inbyte:
+ case bk_ms__inword:
+ case bk_ms__indword:
+ return gen_unary_builtin_pinned(ir_bk_inport, call->arguments->expression, function_type, dbgi);
+ case bk_ms__outbyte:
+ case bk_ms__outword:
+ case bk_ms__outdword:
+ return gen_binary_builtin_mem(ir_bk_outport, call->arguments->expression,
+ call->arguments->next->expression, function_type, dbgi);
default:
- panic("Unsupported builtin found\n");
+ panic("unsupported builtin found");
}
}
* 176.gcc for instance might allocate 2GB instead of 256 MB if alloca is not
* handled right...
*/
-static ir_node *call_expression_to_firm(const call_expression_t *call)
+static ir_node *call_expression_to_firm(const call_expression_t *const call)
{
- dbg_info *dbgi = get_dbg_info(&call->base.source_position);
+ dbg_info *const dbgi = get_dbg_info(&call->base.source_position);
assert(get_cur_block() != NULL);
expression_t *function = call->function;
- if (function->kind == EXPR_BUILTIN_SYMBOL) {
- return process_builtin_call(call);
- }
if (function->kind == EXPR_REFERENCE) {
const reference_expression_t *ref = &function->reference;
entity_t *entity = ref->entity;
+ if (ref->entity->kind == ENTITY_FUNCTION &&
+ ref->entity->function.btk != bk_none) {
+ return process_builtin_call(call);
+ }
+
if (entity->kind == ENTITY_FUNCTION
&& entity->function.entity == rts_entities[rts_alloca]) {
/* handle alloca() call */
expression_t *argument = call->arguments->expression;
ir_node *size = expression_to_firm(argument);
+ ir_mode *mode = get_ir_mode_arithmetic(type_size_t);
- size = create_conv(dbgi, size, get_ir_mode(type_size_t));
+ size = create_conv(dbgi, size, mode);
ir_node *store = get_store();
- dbg_info *dbgi = get_dbg_info(&call->base.source_position);
ir_node *alloca = new_d_Alloc(dbgi, store, size, firm_unknown_type,
stack_alloc);
ir_node *proj_m = new_Proj(alloca, mode_M, pn_Alloc_M);
/* we need to construct a new method type matching the call
* arguments... */
int n_res = get_method_n_ress(ir_method_type);
- dbg_info *dbgi = get_dbg_info(&call->base.source_position);
new_method_type = new_d_type_method(id_unique("calltype.%u"),
n_parameters, n_res, dbgi);
set_method_calling_convention(new_method_type,
expression_t *expression = argument->expression;
ir_node *arg_node = expression_to_firm(expression);
- arg_node = do_strict_conv(dbgi, arg_node);
+ type_t *type = skip_typeref(expression->base.type);
+ if (!is_type_compound(type)) {
+ ir_mode *mode = get_ir_mode_storage(expression->base.type);
+ arg_node = create_conv(dbgi, arg_node, mode);
+ arg_node = do_strict_conv(dbgi, arg_node);
+ }
in[n] = arg_node;
ir_node *result = NULL;
if (!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
- ir_mode *mode;
+ ir_node *resproj = new_d_Proj(dbgi, node, mode_T, pn_Call_T_result);
+
if (is_type_scalar(return_type)) {
- mode = get_ir_mode(return_type);
+ ir_mode *mode = get_ir_mode_storage(return_type);
+ result = new_d_Proj(dbgi, resproj, mode, 0);
+ ir_mode *mode_arith = get_ir_mode_arithmetic(return_type);
+ result = create_conv(NULL, result, mode_arith);
} else {
- mode = mode_P_data;
+ ir_mode *mode = mode_P_data;
+ result = new_d_Proj(dbgi, resproj, mode, 0);
}
- ir_node *resproj = new_d_Proj(dbgi, node, mode_T, pn_Call_T_result);
- result = new_d_Proj(dbgi, resproj, mode, 0);
}
if (function->kind == EXPR_REFERENCE &&
static void assign_value(dbg_info *dbgi, ir_node *addr, type_t *type,
ir_node *value)
{
- value = do_strict_conv(dbgi, value);
+ if (!is_type_compound(type)) {
+ ir_mode *mode = get_ir_mode_storage(type);
+ value = create_conv(dbgi, value, mode);
+ value = do_strict_conv(dbgi, value);
+ }
ir_node *memory = get_store();
if (is_type_scalar(type)) {
- ir_node *store = new_d_Store(dbgi, memory, addr, value);
+ ir_cons_flags flags = type->base.qualifiers & TYPE_QUALIFIER_VOLATILE
+ ? cons_volatile : cons_none;
+ ir_node *store = new_d_Store(dbgi, memory, addr, value, flags);
ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
- if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE && !is_Bad(store))
- set_Store_volatility(store, volatility_is_volatile);
set_store(store_mem);
} else {
ir_type *irtype = get_ir_type(type);
return mask1;
}
-static void bitfield_store_to_firm(dbg_info *dbgi,
+static ir_node *bitfield_store_to_firm(dbg_info *dbgi,
ir_entity *entity, ir_node *addr, ir_node *value, bool set_volatile)
{
ir_type *entity_type = get_entity_type(entity);
/* load current value */
ir_node *mem = get_store();
- ir_node *load = new_d_Load(dbgi, mem, addr, mode);
+ ir_node *load = new_d_Load(dbgi, mem, addr, mode,
+ set_volatile ? cons_volatile : cons_none);
ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
tarval *shift_mask = create_bitfield_mask(mode, bitoffset, bitsize);
/* construct new value and store */
ir_node *new_val = new_d_Or(dbgi, load_res_masked, value_maskshift, mode);
- ir_node *store = new_d_Store(dbgi, load_mem, addr, new_val);
+ ir_node *store = new_d_Store(dbgi, load_mem, addr, new_val,
+ set_volatile ? cons_volatile : cons_none);
ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
set_store(store_mem);
- if (set_volatile) {
- if (!is_Bad(load))
- set_Load_volatility(load, volatility_is_volatile);
- if (!is_Bad(store))
- set_Store_volatility(store, volatility_is_volatile);
- }
+ return value_masked;
}
static ir_node *bitfield_extract_to_firm(const select_expression_t *expression,
{
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
type_t *type = expression->base.type;
- ir_mode *mode = get_ir_mode(type);
+ ir_mode *mode = get_ir_mode_storage(type);
ir_node *mem = get_store();
- ir_node *load = new_d_Load(dbgi, mem, addr, mode);
+ ir_node *load = new_d_Load(dbgi, mem, addr, mode, cons_none);
ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
(void) get_ir_type(type);
}
-static void set_value_for_expression_addr(const expression_t *expression,
- ir_node *value, ir_node *addr)
+static ir_node *set_value_for_expression_addr(const expression_t *expression,
+ ir_node *value, ir_node *addr)
{
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- value = do_strict_conv(dbgi, value);
+ type_t *type = skip_typeref(expression->base.type);
+
+ if (!is_type_compound(type)) {
+ ir_mode *mode = get_ir_mode_storage(type);
+ value = create_conv(dbgi, value, mode);
+ value = do_strict_conv(dbgi, value);
+ }
if (expression->kind == EXPR_REFERENCE) {
const reference_expression_t *ref = &expression->reference;
assert(entity->declaration.kind != DECLARATION_KIND_UNKNOWN);
if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE) {
set_value(entity->variable.v.value_number, value);
- return;
+ return value;
} else if (entity->declaration.kind == DECLARATION_KIND_PARAMETER) {
set_value(entity->parameter.v.value_number, value);
- return;
+ return value;
}
}
addr = expression_to_addr(expression);
assert(addr != NULL);
- type_t *type = skip_typeref(expression->base.type);
-
if (expression->kind == EXPR_SELECT) {
const select_expression_t *select = &expression->select;
ir_entity *irentity = entity->compound_member.entity;
bool set_volatile
= select->base.type->base.qualifiers & TYPE_QUALIFIER_VOLATILE;
- bitfield_store_to_firm(dbgi, irentity, addr, value, set_volatile);
- return;
+ value = bitfield_store_to_firm(dbgi, irentity, addr, value,
+ set_volatile);
+ return value;
}
}
assign_value(dbgi, addr, type, value);
+ return value;
}
static void set_value_for_expression(const expression_t *expression,
assert(entity->kind == ENTITY_VARIABLE
|| entity->kind == ENTITY_PARAMETER);
assert(entity->declaration.kind != DECLARATION_KIND_UNKNOWN);
+ int value_number;
if (entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE) {
+ value_number = entity->variable.v.value_number;
assert(addr == NULL);
- ir_mode *mode = get_ir_mode(expression->base.type);
- return get_value(entity->variable.v.value_number, mode);
+ type_t *type = skip_typeref(expression->base.type);
+ ir_mode *mode = get_ir_mode_storage(type);
+ ir_node *res = get_value(value_number, mode);
+ return create_conv(NULL, res, get_ir_mode_arithmetic(type));
} else if (entity->declaration.kind == DECLARATION_KIND_PARAMETER) {
+ value_number = entity->parameter.v.value_number;
assert(addr == NULL);
- ir_mode *mode = get_ir_mode(expression->base.type);
- return get_value(entity->parameter.v.value_number, mode);
+ type_t *type = skip_typeref(expression->base.type);
+ ir_mode *mode = get_ir_mode_storage(type);
+ ir_node *res = get_value(value_number, mode);
+ return create_conv(NULL, res, get_ir_mode_arithmetic(type));
}
}
ir_node *value = get_value_from_lvalue(value_expr, addr);
type_t *type = skip_typeref(expression->base.type);
- ir_mode *mode = get_ir_mode(expression->base.type);
+ ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
ir_node *offset;
if (is_type_pointer(type)) {
var2 = op2->reference.entity;
type_t *const type = skip_typeref(var->declaration.type);
- ir_mode *const mode = get_ir_mode(type);
+ ir_mode *const mode = get_ir_mode_storage(type);
ir_node *const irn1 = get_value(var->variable.v.value_number, mode);
ir_node *const irn2 = get_value(var2->variable.v.value_number, mode);
if (var != NULL) {
type_t *const type = skip_typeref(var->declaration.type);
- ir_mode *const mode = get_ir_mode(type);
+ ir_mode *const mode = get_ir_mode_storage(type);
res = get_value(var->variable.v.value_number, mode);
res = new_d_Confirm(dbi, res, expression_to_firm(con), cmp_val);
* @param dbi debug info
* @param expr the IL assume expression
*/
-static ir_node *handle_assume(dbg_info *dbi, const expression_t *expression) {
+static ir_node *handle_assume(dbg_info *dbi, const expression_t *expression)
+{
switch(expression->kind) {
case EXPR_BINARY_EQUAL:
case EXPR_BINARY_NOTEQUAL:
switch(expression->base.kind) {
case EXPR_UNARY_NEGATE: {
ir_node *value_node = expression_to_firm(value);
- ir_mode *mode = get_ir_mode(type);
+ ir_mode *mode = get_ir_mode_arithmetic(type);
return new_d_Minus(dbgi, value_node, mode);
}
case EXPR_UNARY_PLUS:
return expression_to_firm(value);
case EXPR_UNARY_BITWISE_NEGATE: {
ir_node *value_node = expression_to_firm(value);
- ir_mode *mode = get_ir_mode(type);
+ ir_mode *mode = get_ir_mode_arithmetic(type);
return new_d_Not(dbgi, value_node, mode);
}
case EXPR_UNARY_NOT: {
ir_node *value_node = expression_to_firm(value);
type_t *value_type = skip_typeref(value->base.type);
assert(is_type_pointer(value_type));
+
+ /* check for __based */
+ const variable_t *const base_var = value_type->pointer.base_variable;
+ if (base_var != NULL) {
+ ir_node *const addr = get_global_var_address(dbgi, base_var);
+ ir_node *const base = deref_address(dbgi, base_var->base.type, addr);
+ value_node = new_d_Add(dbgi, value_node, base, get_ir_mode_storage(value_type));
+ }
type_t *points_to = value_type->pointer.points_to;
return deref_address(dbgi, points_to, value_node);
}
case EXPR_UNARY_CAST: {
ir_node *value_node = expression_to_firm(value);
if (is_type_scalar(type)) {
- ir_mode *mode = get_ir_mode(type);
- ir_node *node = create_conv(dbgi, value_node, mode);
- node = do_strict_conv(dbgi, node);
+ ir_mode *mode = get_ir_mode_storage(type);
+ type_t *from_type = skip_typeref(value->base.type);
+ /* check for conversion from / to __based types */
+ if (is_type_pointer(type) && is_type_pointer(from_type)) {
+ const variable_t *from_var = from_type->pointer.base_variable;
+ const variable_t *to_var = type->pointer.base_variable;
+ if (from_var != to_var) {
+ if (from_var != NULL) {
+ ir_node *const addr = get_global_var_address(dbgi, from_var);
+ ir_node *const base = deref_address(dbgi, from_var->base.type, addr);
+ value_node = new_d_Add(dbgi, value_node, base, get_ir_mode_storage(from_type));
+ }
+ if (to_var != NULL) {
+ ir_node *const addr = get_global_var_address(dbgi, to_var);
+ ir_node *const base = deref_address(dbgi, to_var->base.type, addr);
+ value_node = new_d_Sub(dbgi, value_node, base, mode);
+ }
+ }
+ }
+ ir_node *node = create_conv(dbgi, value_node, mode);
+ node = do_strict_conv(dbgi, node);
+ ir_mode *mode_arith = get_ir_mode_arithmetic(type);
+ node = create_conv(dbgi, node, mode_arith);
return node;
} else {
/* make sure firm type is constructed */
case EXPR_UNARY_CAST_IMPLICIT: {
ir_node *value_node = expression_to_firm(value);
if (is_type_scalar(type)) {
- ir_mode *mode = get_ir_mode(type);
- return create_conv(dbgi, value_node, mode);
+ ir_mode *mode = get_ir_mode_storage(type);
+ ir_node *res = create_conv(dbgi, value_node, mode);
+ ir_mode *mode_arith = get_ir_mode_arithmetic(type);
+ res = create_conv(dbgi, res, mode_arith);
+ return res;
} else {
return value_node;
}
ir_node *cur_block = get_cur_block();
ir_node *one_block = new_immBlock();
+ set_cur_block(one_block);
ir_node *one = new_Const(get_mode_one(mode));
ir_node *jmp_one = new_d_Jmp(dbgi);
ir_node *zero_block = new_immBlock();
+ set_cur_block(zero_block);
ir_node *zero = new_Const(get_mode_null(mode));
ir_node *jmp_zero = new_d_Jmp(dbgi);
static ir_node *adjust_for_pointer_arithmetic(dbg_info *dbgi,
ir_node *value, type_t *type)
{
- ir_mode *const mode = get_ir_mode(type_ptrdiff_t);
+ ir_mode *const mode = get_ir_mode_arithmetic(type_ptrdiff_t);
assert(is_type_pointer(type));
pointer_type_t *const pointer_type = &type->pointer;
type_t *const points_to = skip_typeref(pointer_type->points_to);
- unsigned elem_size = get_type_size_const(points_to);
-
- value = create_conv(dbgi, value, mode);
-
- /* gcc extension: allow arithmetic with void * and function * */
- if ((elem_size == 0 && is_type_atomic(points_to, ATOMIC_TYPE_VOID)) ||
- is_type_function(points_to)) {
- elem_size = 1;
- }
-
- assert(elem_size >= 1);
- if (elem_size == 1)
- return value;
-
- ir_node *const cnst = new_Const_long(mode, (long)elem_size);
- ir_node *const mul = new_d_Mul(dbgi, value, cnst, mode);
+ ir_node * elem_size = get_type_size(points_to);
+ elem_size = create_conv(dbgi, elem_size, mode);
+ value = create_conv(dbgi, value, mode);
+ ir_node *const mul = new_d_Mul(dbgi, value, elem_size, mode);
return mul;
}
if (is_type_pointer(type_left) && is_type_pointer(type_right)) {
const pointer_type_t *const ptr_type = &type_left->pointer;
- mode = get_ir_mode(expression->base.type);
+ mode = get_ir_mode_arithmetic(expression->base.type);
ir_node *const elem_size = get_type_size(ptr_type->points_to);
ir_node *const conv_size = new_d_Conv(dbgi, elem_size, mode);
ir_node *const sub = new_d_Sub(dbgi, left, right, mode);
case EXPR_BINARY_SUB_ASSIGN:
if (is_type_pointer(type_left)) {
right = adjust_for_pointer_arithmetic(dbgi, right, type_left);
- mode = get_ir_mode(type_left);
+ mode = get_ir_mode_arithmetic(type_left);
break;
}
goto normal_node;
case EXPR_BINARY_ADD_ASSIGN:
if (is_type_pointer(type_left)) {
right = adjust_for_pointer_arithmetic(dbgi, right, type_left);
- mode = get_ir_mode(type_left);
+ mode = get_ir_mode_arithmetic(type_left);
break;
} else if (is_type_pointer(type_right)) {
left = adjust_for_pointer_arithmetic(dbgi, left, type_right);
- mode = get_ir_mode(type_right);
+ mode = get_ir_mode_arithmetic(type_right);
break;
}
goto normal_node;
default:
normal_node:
- mode = get_ir_mode(type_right);
+ mode = get_ir_mode_arithmetic(type_right);
left = create_conv(dbgi, left, mode);
break;
}
static ir_node *create_lazy_op(const binary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- type_t *type = expression->base.type;
- ir_mode *mode = get_ir_mode(type);
+ type_t *type = skip_typeref(expression->base.type);
+ ir_mode *mode = get_ir_mode_arithmetic(type);
if (is_constant_expression(expression->left)) {
long val = fold_constant(expression->left);
expression_kind_t ekind = expression->base.kind;
assert(ekind == EXPR_BINARY_LOGICAL_AND || ekind == EXPR_BINARY_LOGICAL_OR);
- if ((ekind == EXPR_BINARY_LOGICAL_AND && val != 0) ||
- (ekind == EXPR_BINARY_LOGICAL_OR && val == 0)) {
- return produce_condition_result(expression->right, mode, dbgi);
+ if (ekind == EXPR_BINARY_LOGICAL_AND) {
+ if (val == 0) {
+ return new_Const(get_mode_null(mode));
+ }
} else {
- return new_Const(get_mode_one(mode));
+ if (val != 0) {
+ return new_Const(get_mode_one(mode));
+ }
}
+
+ if (is_constant_expression(expression->right)) {
+ long const valr = fold_constant(expression->right);
+ return valr != 0 ?
+ new_Const(get_mode_one(mode)) :
+ new_Const(get_mode_null(mode));
+ }
+
+ return produce_condition_result(expression->right, mode, dbgi);
}
return produce_condition_result((const expression_t*) expression, mode,
{
dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
const expression_t *left_expr = expression->left;
- ir_mode *left_mode = get_ir_mode(left_expr->base.type);
+ type_t *type = skip_typeref(left_expr->base.type);
+ ir_mode *left_mode = get_ir_mode_storage(type);
ir_node *right = expression_to_firm(expression->right);
ir_node *left_addr = expression_to_addr(left_expr);
ir_node *left = get_value_from_lvalue(left_expr, left_addr);
result = create_conv(dbgi, result, left_mode);
result = do_strict_conv(dbgi, result);
- set_value_for_expression_addr(left_expr, result, left_addr);
+ result = set_value_for_expression_addr(left_expr, result, left_addr);
+ if (!is_type_compound(type)) {
+ ir_mode *mode_arithmetic = get_ir_mode_arithmetic(type);
+ result = create_conv(dbgi, result, mode_arithmetic);
+ }
return result;
}
case EXPR_BINARY_ASSIGN: {
ir_node *addr = expression_to_addr(expression->left);
ir_node *right = expression_to_firm(expression->right);
- set_value_for_expression_addr(expression->left, right, addr);
+ ir_node *res
+ = set_value_for_expression_addr(expression->left, right, addr);
- return right;
+ type_t *type = skip_typeref(expression->base.type);
+ if (!is_type_compound(type)) {
+ ir_mode *mode_arithmetic = get_ir_mode_arithmetic(type);
+ res = create_conv(NULL, res, mode_arithmetic);
+ }
+ return res;
}
case EXPR_BINARY_ADD:
case EXPR_BINARY_SUB:
static ir_node *offsetof_to_firm(const offsetof_expression_t *expression)
{
- ir_mode *mode = get_ir_mode(expression->base.type);
+ ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
long offset = get_offsetof_offset(expression);
tarval *tv = new_tarval_from_long(offset, mode);
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
create_local_initializer(initializer, dbgi, entity, type);
/* create a sel for the compound literal address */
- ir_node *frame = get_local_frame(entity);
+ ir_node *frame = get_irg_frame(current_ir_graph);
ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
return sel;
}
}
type = skip_typeref(type);
- /* § 6.5.3.4 (2) if the type is a VLA, evaluate the expression. */
+ /* §6.5.3.4:2 if the type is a VLA, evaluate the expression. */
if (is_type_array(type) && type->array.is_vla
&& expression->tp_expression != NULL) {
expression_to_firm(expression->tp_expression);
return get_type_size(type);
}
+static entity_t *get_expression_entity(const expression_t *expression)
+{
+ if (expression->kind != EXPR_REFERENCE)
+ return NULL;
+
+ return expression->reference.entity;
+}
+
/**
* Transform an alignof expression into Firm code.
*/
static ir_node *alignof_to_firm(const typeprop_expression_t *expression)
{
- type_t *type = expression->type;
- if (type == NULL) {
- /* beware: if expression is a variable reference, return the
- alignment of the variable. */
- const expression_t *tp_expression = expression->tp_expression;
- const entity_t *entity = expression_is_variable(tp_expression);
- if (entity != NULL) {
- /* TODO: get the alignment of this variable. */
- (void) entity;
+ ir_entity *irentity = NULL;
+
+ const expression_t *tp_expression = expression->tp_expression;
+ if (tp_expression != NULL) {
+ entity_t *entity = get_expression_entity(tp_expression);
+ if (entity != NULL && is_declaration(entity)) {
+ switch (entity->declaration.kind) {
+ case DECLARATION_KIND_UNKNOWN:
+ panic("unknown entity reference found");
+ case DECLARATION_KIND_COMPOUND_MEMBER:
+ irentity = entity->compound_member.entity;
+ break;
+ case DECLARATION_KIND_GLOBAL_VARIABLE:
+ case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY:
+ irentity = entity->variable.v.entity;
+ break;
+ case DECLARATION_KIND_PARAMETER_ENTITY:
+ irentity = entity->parameter.v.entity;
+ break;
+ case DECLARATION_KIND_FUNCTION:
+ case DECLARATION_KIND_INNER_FUNCTION:
+ irentity = entity->function.entity;
+ break;
+ case DECLARATION_KIND_PARAMETER:
+ case DECLARATION_KIND_LOCAL_VARIABLE:
+ case DECLARATION_KIND_VARIABLE_LENGTH_ARRAY:
+ break;
+ }
}
- type = tp_expression->base.type;
- assert(type != NULL);
}
- ir_mode *const mode = get_ir_mode(expression->base.type);
+ ir_type *irtype;
+ if (irentity != NULL) {
+ irtype = get_entity_type(irentity);
+ } else {
+ type_t *type = expression->type;
+ irtype = get_ir_type(type);
+ }
+
+ ir_mode *const mode = get_ir_mode_arithmetic(expression->base.type);
symconst_symbol sym;
- sym.type_p = get_ir_type(type);
+ sym.type_p = irtype;
return new_SymConst(mode, sym, symconst_type_align);
}
assert(is_constant_expression(expression));
ir_graph *old_current_ir_graph = current_ir_graph;
- if (current_ir_graph == NULL) {
- current_ir_graph = get_const_code_irg();
- }
+ current_ir_graph = get_const_code_irg();
ir_node *cnst = expression_to_firm(expression);
current_ir_graph = old_current_ir_graph;
if (!is_Const(cnst)) {
- panic("couldn't fold constant\n");
+ panic("couldn't fold constant");
}
tarval *tv = get_Const_tarval(cnst);
if (!tarval_is_long(tv)) {
- panic("result of constant folding is not integer\n");
+ panic("result of constant folding is not integer");
}
constant_folding = constant_folding_old;
/* create the true block */
ir_node *true_block = new_immBlock();
+ set_cur_block(true_block);
ir_node *true_val = expression->true_expression != NULL ?
expression_to_firm(expression->true_expression) : NULL;
/* create the false block */
ir_node *false_block = new_immBlock();
+ set_cur_block(false_block);
ir_node *false_val = expression_to_firm(expression->false_expression);
ir_node *false_jmp = new_Jmp();
set_cur_block(cur_block);
ir_node *const cond_expr = create_condition_evaluation(expression->condition, true_block, false_block);
if (expression->true_expression == NULL) {
- if (cond_expr != NULL) {
+ if (cond_expr != NULL && get_irn_mode(cond_expr) != mode_b) {
true_val = cond_expr;
} else {
- /* Condition ended with a short circuit (&&, ||, !) operation.
- * Generate a "1" as value for the true branch. */
+ /* Condition ended with a short circuit (&&, ||, !) operation or a
+ * comparison. Generate a "1" as value for the true branch. */
true_val = new_Const(get_mode_one(mode_Is));
}
}
ir_type *const method_type = get_ir_type(type);
int const n = get_method_n_params(method_type) - 1;
ir_entity *const parm_ent = get_method_value_param_ent(method_type, n);
- ir_node *const arg_base = get_irg_value_param_base(current_ir_graph);
+ ir_node *const frame = get_irg_frame(current_ir_graph);
dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
ir_node *const no_mem = new_NoMem();
ir_node *const arg_sel =
- new_d_simpleSel(dbgi, no_mem, arg_base, parm_ent);
+ new_d_simpleSel(dbgi, no_mem, frame, parm_ent);
ir_node *const cnst = get_type_size(expr->parameter->base.type);
- ir_node *const add = new_d_Add(dbgi, arg_sel, cnst, mode_P_data);
+ ir_mode *const mode = get_irn_mode(cnst);
+ ir_node *const c1 = new_Const_long(mode, stack_param_align - 1);
+ ir_node *const c2 = new_d_Add(dbgi, cnst, c1, mode);
+ ir_node *const c3 = new_Const_long(mode, -(long)stack_param_align);
+ ir_node *const c4 = new_d_And(dbgi, c2, c3, mode);
+ ir_node *const add = new_d_Add(dbgi, arg_sel, c4, mode_P_data);
set_value_for_expression(expr->ap, add);
return NULL;
ir_node *const res = deref_address(dbgi, type, ap);
ir_node *const cnst = get_type_size(expr->base.type);
- ir_node *const add = new_d_Add(dbgi, ap, cnst, mode_P_data);
+ ir_mode *const mode = get_irn_mode(cnst);
+ ir_node *const c1 = new_Const_long(mode, stack_param_align - 1);
+ ir_node *const c2 = new_d_Add(dbgi, cnst, c1, mode);
+ ir_node *const c3 = new_Const_long(mode, -(long)stack_param_align);
+ ir_node *const c4 = new_d_And(dbgi, c2, c3, mode);
+ ir_node *const add = new_d_Add(dbgi, ap, c4, mode_P_data);
set_value_for_expression_addr(ap_expr, add, ap_addr);
return res;
}
+/**
+ * Generate Firm for a va_copy expression.
+ */
+static ir_node *va_copy_expression_to_firm(const va_copy_expression_t *const expr)
+{
+ ir_node *const src = expression_to_firm(expr->src);
+ set_value_for_expression(expr->dst, src);
+ return NULL;
+}
+
static ir_node *dereference_addr(const unary_expression_t *const expression)
{
assert(expression->base.kind == EXPR_UNARY_DEREFERENCE);
static ir_node *builtin_constant_to_firm(
const builtin_constant_expression_t *expression)
{
- ir_mode *mode = get_ir_mode(expression->base.type);
+ ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
long v;
if (is_constant_expression(expression->value)) {
return new_Const_long(mode, v);
}
-static ir_node *builtin_prefetch_to_firm(
- const builtin_prefetch_expression_t *expression)
+static ir_node *builtin_types_compatible_to_firm(
+ const builtin_types_compatible_expression_t *expression)
{
- ir_node *adr = expression_to_firm(expression->adr);
- /* no Firm support for prefetch yet */
- (void) adr;
- return NULL;
+ type_t *const left = get_unqualified_type(skip_typeref(expression->left));
+ type_t *const right = get_unqualified_type(skip_typeref(expression->right));
+ long const value = types_compatible(left, right) ? 1 : 0;
+ ir_mode *const mode = get_ir_mode_arithmetic(expression->base.type);
+ return new_Const_long(mode, value);
}
static ir_node *get_label_block(label_t *label)
ir_graph *rem = current_ir_graph;
current_ir_graph = current_function;
- ir_node *old_cur_block = get_cur_block();
- ir_node *block = new_immBlock();
- set_cur_block(old_cur_block);
+ ir_node *block = new_immBlock();
label->block = block;
return new_SymConst(mode_P_code, value, symconst_label);
}
-static ir_node *builtin_symbol_to_firm(
- const builtin_symbol_expression_t *expression)
-{
- /* for gcc compatibility we have to produce (dummy) addresses for some
- * builtins */
- if (warning.other) {
- warningf(&expression->base.source_position,
- "taking address of builtin '%Y'", expression->symbol);
- }
-
- /* simply create a NULL pointer */
- ir_mode *mode = get_ir_mode(type_void_ptr);
- ir_node *res = new_Const_long(mode, 0);
-
- return res;
-}
-
/**
* creates firm nodes for an expression. The difference between this function
* and expression_to_firm is, that this version might produce mode_b nodes
return va_start_expression_to_firm(&expression->va_starte);
case EXPR_VA_ARG:
return va_arg_expression_to_firm(&expression->va_arge);
- case EXPR_BUILTIN_SYMBOL:
- return builtin_symbol_to_firm(&expression->builtin_symbol);
+ case EXPR_VA_COPY:
+ return va_copy_expression_to_firm(&expression->va_copye);
case EXPR_BUILTIN_CONSTANT_P:
return builtin_constant_to_firm(&expression->builtin_constant);
- case EXPR_BUILTIN_PREFETCH:
- return builtin_prefetch_to_firm(&expression->builtin_prefetch);
+ case EXPR_BUILTIN_TYPES_COMPATIBLE_P:
+ return builtin_types_compatible_to_firm(&expression->builtin_types_compatible);
case EXPR_OFFSETOF:
return offsetof_to_firm(&expression->offsetofe);
case EXPR_COMPOUND_LITERAL:
panic("invalid expression found");
}
+/**
+ * Check if a given expression is a GNU __builtin_expect() call.
+ */
static bool is_builtin_expect(const expression_t *expression)
{
if (expression->kind != EXPR_CALL)
return false;
expression_t *function = expression->call.function;
- if (function->kind != EXPR_BUILTIN_SYMBOL)
+ if (function->kind != EXPR_REFERENCE)
return false;
- if (function->builtin_symbol.symbol->ID != T___builtin_expect)
+ reference_expression_t *ref = &function->reference;
+ if (ref->entity->kind != ENTITY_FUNCTION ||
+ ref->entity->function.btk != bk_gnu_builtin_expect)
return false;
return true;
if (is_constant_expression(expression)) {
ir_node *res = _expression_to_firm(expression);
- ir_mode *mode = get_ir_mode(expression->base.type);
+ ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
assert(is_Const(res));
if (is_Const_null(res)) {
return new_Const_long(mode, 0);
/* we have to produce a 0/1 from the mode_b expression */
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_mode *mode = get_ir_mode(expression->base.type);
+ ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
return produce_condition_result(expression, mode, dbgi);
}
case EXPR_BINARY_LOGICAL_AND: {
const binary_expression_t *binary_expression = &expression->binary;
- ir_node *cur_block = get_cur_block();
ir_node *extra_block = new_immBlock();
- set_cur_block(cur_block);
create_condition_evaluation(binary_expression->left, extra_block,
false_block);
mature_immBlock(extra_block);
case EXPR_BINARY_LOGICAL_OR: {
const binary_expression_t *binary_expression = &expression->binary;
- ir_node *cur_block = get_cur_block();
ir_node *extra_block = new_immBlock();
- set_cur_block(cur_block);
create_condition_evaluation(binary_expression->left, true_block,
extra_block);
mature_immBlock(extra_block);
ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
/* set branch prediction info based on __builtin_expect */
- if (is_builtin_expect(expression)) {
+ if (is_builtin_expect(expression) && is_Cond(cond)) {
call_argument_t *argument = expression->call.arguments->next;
if (is_constant_expression(argument->expression)) {
long cnst = fold_constant(argument->expression);
}
add_immBlock_pred(true_block, true_proj);
- if (false_block != NULL) {
- add_immBlock_pred(false_block, false_proj);
- }
+ add_immBlock_pred(false_block, false_proj);
set_cur_block(NULL);
return cond_expr;
ir_type *parent_type)
{
assert(variable->kind == ENTITY_VARIABLE);
- type_t *const type = skip_typeref(variable->declaration.type);
+ type_t *type = skip_typeref(variable->declaration.type);
+ type = get_aligned_type(type, variable->variable.alignment);
+
ident *const id = new_id_from_str(variable->base.symbol->string);
ir_type *const irtype = get_ir_type(type);
dbg_info *const dbgi = get_dbg_info(&variable->base.source_position);
+
ir_entity *const irentity = new_d_entity(parent_type, id, irtype, dbgi);
handle_gnu_attributes_ent(irentity, variable);
variable->variable.v.entity = irentity;
set_entity_variability(irentity, variability_uninitialized);
set_entity_ld_ident(irentity, create_ld_ident(variable));
+
if (parent_type == get_tls_type())
set_entity_allocation(irentity, allocation_automatic);
else if (declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE)
panic("initializer creation for compounds not implemented yet");
}
ir_node *value = expression_to_firm(initializer->value);
+ type_t *type = initializer->value->base.type;
+ ir_mode *mode = get_ir_mode_storage(type);
+ value = create_conv(NULL, value, mode);
return create_initializer_const(value);
}
ir_initializer_t *irinitializer = create_initializer_compound(len);
const char *string = initializer->string.begin;
- ir_mode *mode = get_ir_mode(type->array.element_type);
+ ir_mode *mode = get_ir_mode_storage(type->array.element_type);
for (size_t i = 0; i < len; ++i) {
char c = 0;
/* TODO: bitfields */
ir_node *mem = get_store();
- ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst);
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst, cons_none);
ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
set_store(proj_m);
} else {
assert(get_type_mode(type) == mode);
ir_node *mem = get_store();
- ir_node *store = new_d_Store(dbgi, mem, base_addr, node);
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, node, cons_none);
ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
set_store(proj_m);
return;
assert(get_type_mode(type) == mode);
ir_node *mem = get_store();
- ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst);
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst, cons_none);
ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
set_store(proj_m);
return;
static void create_dynamic_initializer(ir_initializer_t *initializer,
dbg_info *dbgi, ir_entity *entity)
{
- ir_node *frame = get_local_frame(entity);
+ ir_node *frame = get_irg_frame(current_ir_graph);
ir_node *base_addr = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
ir_type *type = get_entity_type(entity);
dbg_info *dbgi = get_dbg_info(&entity->base.source_position);
ir_entity *irentity = entity->variable.v.entity;
type_t *type = entity->declaration.type;
+
+ type = get_aligned_type(type, entity->variable.alignment);
create_local_initializer(initializer, dbgi, irentity, type);
}
dbg_info *dbgi = get_dbg_info(&entity->base.source_position);
ir_node *value = expression_to_firm(initializer_value->value);
+
+ type_t *type = initializer_value->value->base.type;
+ ir_mode *mode = get_ir_mode_storage(type);
+ value = create_conv(dbgi, value, mode);
value = do_strict_conv(dbgi, value);
if (declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
assert(entity->kind == ENTITY_VARIABLE);
assert(entity->declaration.kind == DECLARATION_KIND_UNKNOWN);
- type_t *const type = skip_typeref(entity->declaration.type);
+ type_t *type = skip_typeref(entity->declaration.type);
+ type = get_aligned_type(type, entity->variable.alignment);
+
ir_type *const var_type = entity->variable.thread_local ?
get_tls_type() : get_glob_type();
ir_type *const irtype = get_ir_type(type);
entity->declaration.kind = DECLARATION_KIND_GLOBAL_VARIABLE;
entity->variable.v.entity = irentity;
+
set_entity_ld_ident(irentity, id);
set_entity_variability(irentity, variability_uninitialized);
set_entity_visibility(irentity, visibility_local);
if (statement->value != NULL) {
ir_node *node = expression_to_firm(statement->value);
- node = do_strict_conv(dbgi, node);
+ if (!is_compound_type(res_type)) {
+ type_t *type = statement->value->base.type;
+ ir_mode *mode = get_ir_mode_storage(type);
+ node = create_conv(dbgi, node, mode);
+ node = do_strict_conv(dbgi, node);
+ }
in[0] = node;
} else {
ir_mode *mode;
case STORAGE_CLASS_EXTERN:
if (entity->kind == ENTITY_FUNCTION) {
assert(entity->function.statement == NULL);
- get_function_entity(entity);
+ (void)get_function_entity(entity, NULL);
} else {
create_global_variable(entity);
create_variable_initializer(entity);
case STORAGE_CLASS_REGISTER:
if (entity->kind == ENTITY_FUNCTION) {
if (entity->function.statement != NULL) {
- get_function_entity(entity);
+ ir_type *owner = get_irg_frame_type(current_ir_graph);
+ (void)get_function_entity(entity, owner);
entity->declaration.kind = DECLARATION_KIND_INNER_FUNCTION;
enqueue_inner_function(entity);
} else {
- get_function_entity(entity);
+ (void)get_function_entity(entity, NULL);
}
} else {
create_local_variable(entity);
if (entity->base.symbol == NULL)
return;
+ // no need to emit code in dead blocks
+ if (entity->declaration.storage_class != STORAGE_CLASS_STATIC
+ && get_cur_block() == NULL)
+ return;
+
switch ((declaration_kind_t) entity->declaration.kind) {
case DECLARATION_KIND_LOCAL_VARIABLE:
case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY:
static void declaration_statement_to_firm(declaration_statement_t *statement)
{
- entity_t * entity = statement->declarations_begin;
- entity_t *const last = statement->declarations_end;
- if (entity != NULL) {
- for ( ;; entity = entity->base.next) {
- if (is_declaration(entity))
- initialize_local_declaration(entity);
- if (entity == last)
- break;
+ entity_t *entity = statement->declarations_begin;
+ if (entity == NULL)
+ return;
+
+ entity_t *const last = statement->declarations_end;
+ for ( ;; entity = entity->base.next) {
+ if (is_declaration(entity)) {
+ initialize_local_declaration(entity);
+ } else if (entity->kind == ENTITY_TYPEDEF) {
+ /* §6.7.7:3 Any array size expressions associated with variable length
+ * array declarators are evaluated each time the declaration of the
+ * typedef name is reached in the order of execution. */
+ type_t *const type = skip_typeref(entity->typedefe.type);
+ if (is_type_array(type) && type->array.is_vla)
+ get_vla_size(&type->array);
}
+ if (entity == last)
+ break;
}
}
ir_node *true_block = NULL;
if (statement->true_statement != NULL) {
true_block = new_immBlock();
+ set_cur_block(true_block);
statement_to_firm(statement->true_statement);
if (get_cur_block() != NULL) {
ir_node *jmp = new_Jmp();
ir_node *false_block = NULL;
if (statement->false_statement != NULL) {
false_block = new_immBlock();
+ set_cur_block(false_block);
statement_to_firm(statement->false_statement);
if (get_cur_block() != NULL) {
break_label = NULL;
ir_node *body_block = new_immBlock();
+ set_cur_block(body_block);
statement_to_firm(statement->body);
ir_node *false_block = break_label;
continue_label = header_block;
break_label = NULL;
+ set_cur_block(body_block);
statement_to_firm(statement->body);
ir_node *false_block = break_label;
create_condition_evaluation(statement->condition, body_block, false_block);
mature_immBlock(body_block);
mature_immBlock(header_block);
- if (false_block != NULL) {
- mature_immBlock(false_block);
- }
+ mature_immBlock(false_block);
set_cur_block(false_block);
}
/* create the step block */
ir_node *const step_block = new_immBlock();
+ set_cur_block(step_block);
if (statement->step != NULL) {
expression_to_firm(statement->step);
}
/* create the header block */
ir_node *const header_block = new_immBlock();
+ set_cur_block(header_block);
if (jmp != NULL) {
add_immBlock_pred(header_block, jmp);
}
ir_node *const false_block = new_immBlock();
/* the loop body */
- ir_node * body_block;
+ ir_node *body_block;
if (statement->body != NULL) {
ir_node *const old_continue_label = continue_label;
ir_node *const old_break_label = break_label;
break_label = false_block;
body_block = new_immBlock();
+ set_cur_block(body_block);
statement_to_firm(statement->body);
assert(continue_label == step_block);
static ir_node *get_break_label(void)
{
if (break_label == NULL) {
- ir_node *cur_block = get_cur_block();
break_label = new_immBlock();
- set_cur_block(cur_block);
}
return break_label;
}
}
if (def_nr == INT_MAX) {
- /* Bad: an overflow will occurr, we cannot be sure that the
+ /* Bad: an overflow will occur, we cannot be sure that the
* maximum + 1 is a free number. Scan the values a second
* time to find a free number.
*/
}
}
/* We look at the first num_cases constants:
- * Either they are densed, so we took the last (num_cases)
- * one, or they are non densed, so we will find one free
+ * Either they are dense, so we took the last (num_cases)
+ * one, or they are not dense, so we will find one free
* there...
*/
unsigned long i;
ir_node *const fallthrough = (get_cur_block() == NULL ? NULL : new_Jmp());
ir_node *proj;
- ir_node *old_block = get_nodes_block(current_switch_cond);
ir_node *block = new_immBlock();
- set_cur_block(old_block);
+ set_cur_block(get_nodes_block(current_switch_cond));
if (statement->expression != NULL) {
long pn = statement->first_case;
long end_pn = statement->last_case;
do {
proj = new_d_Proj(dbgi, current_switch_cond, mode_X, pn);
add_immBlock_pred(block, proj);
- } while(pn++ < end_pn);
+ } while (pn++ < end_pn);
} else {
saw_default_label = true;
proj = new_d_defaultProj(dbgi, current_switch_cond,
ir_asm_constraint constraint;
constraint.pos = pos;
constraint.constraint = new_id_from_str(buf);
- constraint.mode = get_ir_mode(expr->base.type);
+ constraint.mode = get_ir_mode_storage(expr->base.type);
tmp_in_constraints[in_size] = constraint;
ins[in_size] = value;
ir_asm_constraint constraint;
constraint.pos = pos;
constraint.constraint = new_id_from_str(constraints);
- constraint.mode = get_ir_mode(argument->expression->base.type);
+ constraint.mode = get_ir_mode_storage(argument->expression->base.type);
obstack_grow(&asm_obst, &constraint, sizeof(constraint));
}
for (i = 0; i < out_size; ++i) {
const expression_t *out_expr = out_exprs[i];
long pn = i;
- ir_mode *mode = get_ir_mode(out_expr->base.type);
+ ir_mode *mode = get_ir_mode_storage(out_expr->base.type);
ir_node *proj = new_Proj(node, mode, pn);
ir_node *addr = out_addrs[i];
}
}
-static void ms_try_statement_to_firm(ms_try_statement_t *statement) {
+static void ms_try_statement_to_firm(ms_try_statement_t *statement)
+{
statement_to_firm(statement->try_statement);
warningf(&statement->base.source_position, "structured exception handling ignored");
}
-static void leave_statement_to_firm(leave_statement_t *statement) {
+static void leave_statement_to_firm(leave_statement_t *statement)
+{
errorf(&statement->base.source_position, "__leave not supported yet");
}
case STATEMENT_LABEL:
label_to_firm(&statement->label);
return;
- case STATEMENT_LOCAL_LABEL:
- /* local labels transform the semantics of labels while parsing
- * they don't need any special treatment here */
- return;
case STATEMENT_GOTO:
goto_to_firm(&statement->gotos);
return;
leave_statement_to_firm(&statement->leave);
return;
}
- panic("Statement not implemented\n");
+ panic("statement not implemented");
}
static int count_local_variables(const entity_t *entity,
const entity_t *const last)
{
int count = 0;
- for (; entity != NULL; entity = entity->base.next) {
+ entity_t const *const end = last != NULL ? last->base.next : NULL;
+ for (; entity != end; entity = entity->base.next) {
type_t *type;
bool address_taken;
if (!address_taken && is_type_scalar(type))
++count;
-
- if (entity == last)
- break;
}
return count;
}
}
}
+/**
+ * Return the number of local (alias free) variables used by a function.
+ */
static int get_function_n_local_vars(entity_t *entity)
{
+ const function_t *function = &entity->function;
int count = 0;
/* count parameters */
- count += count_local_variables(entity->function.parameters.entities, NULL);
+ count += count_local_variables(function->parameters.entities, NULL);
/* count local variables declared in body */
- walk_statements(entity->function.statement, count_local_variables_in_stmt,
- &count);
+ walk_statements(function->statement, count_local_variables_in_stmt, &count);
return count;
}
+/**
+ * Build Firm code for the parameters of a function.
+ */
static void initialize_function_parameters(entity_t *entity)
{
assert(entity->kind == ENTITY_FUNCTION);
ir_node *args = get_irg_args(irg);
ir_node *start_block = get_irg_start_block(irg);
ir_type *function_irtype = get_ir_type(entity->declaration.type);
+ int first_param_nr = 0;
+
+ if (entity->function.need_closure) {
+ /* add an extra parameter for the static link */
+ entity->function.static_link = new_r_Proj(irg, start_block, args, mode_P_data, 0);
+ ++first_param_nr;
+ }
int n = 0;
entity_t *parameter = entity->function.parameters.entities;
for ( ; parameter != NULL; parameter = parameter->base.next, ++n) {
- assert(parameter->kind == ENTITY_PARAMETER);
+ if (parameter->kind != ENTITY_PARAMETER)
+ continue;
+
assert(parameter->declaration.kind == DECLARATION_KIND_UNKNOWN);
type_t *type = skip_typeref(parameter->declaration.type);
ir_type *param_irtype = get_method_param_type(function_irtype, n);
ir_mode *param_mode = get_type_mode(param_irtype);
- long pn = n;
+ long pn = n + first_param_nr;
ir_node *value = new_r_Proj(irg, start_block, args, param_mode, pn);
- ir_mode *mode = get_ir_mode(type);
+ ir_mode *mode = get_ir_mode_storage(type);
value = create_conv(NULL, value, mode);
value = do_strict_conv(NULL, value);
*/
static void handle_decl_modifier_irg(ir_graph_ptr irg, decl_modifiers_t decl_modifiers)
{
+ if (decl_modifiers & DM_RETURNS_TWICE) {
+ /* TRUE if the declaration includes __attribute__((returns_twice)) */
+ set_irg_additional_property(irg, mtp_property_returns_twice);
+ }
if (decl_modifiers & DM_NORETURN) {
/* TRUE if the declaration includes the Microsoft
__declspec(noreturn) specifier. */
/**
* Generate possible IJmp branches to a given label block.
*/
-static void gen_ijmp_branches(ir_node *block) {
+static void gen_ijmp_branches(ir_node *block)
+{
ir_node *ijmp;
for (ijmp = ijmp_list; ijmp != NULL; ijmp = get_irn_link(ijmp)) {
add_immBlock_pred(block, ijmp);
}
/**
- * Create code for a function.
+ * Create code for a function and all inner functions.
+ *
+ * @param entity the function entity
*/
static void create_function(entity_t *entity)
{
assert(entity->kind == ENTITY_FUNCTION);
- ir_entity *function_entity = get_function_entity(entity);
+ ir_entity *function_entity = get_function_entity(entity, current_outer_frame);
if (entity->function.statement == NULL)
return;
+ inner_functions = NULL;
+ current_trampolines = NULL;
+
if (entity->declaration.modifiers & DM_CONSTRUCTOR) {
ir_type *segment = get_segment_type(IR_SEGMENT_CONSTRUCTORS);
add_function_pointer(segment, function_entity, "constructor_ptr.%u");
current_function = irg;
set_irg_fp_model(irg, firm_opt.fp_model);
- tarval_enable_fp_ops((firm_opt.fp_model & fp_strict_algebraic) == 0);
+ tarval_enable_fp_ops(1);
set_irn_dbg_info(get_irg_start_block(irg), get_entity_dbg_info(function_entity));
ir_node *first_block = get_cur_block();
next_value_number_function = 0;
initialize_function_parameters(entity);
+ current_static_link = entity->function.static_link;
statement_to_firm(entity->function.statement);
} else {
ir_mode *mode;
if (is_type_scalar(return_type)) {
- mode = get_ir_mode(func_type->return_type);
+ mode = get_ir_mode_storage(func_type->return_type);
} else {
mode = mode_P_data;
}
irg_vrfy(irg);
current_function = old_current_function;
- /* create inner functions */
- entity_t *inner;
- for (inner = next_inner_function(); inner != NULL;
- inner = next_inner_function()) {
- create_function(inner);
+ if (current_trampolines != NULL) {
+ DEL_ARR_F(current_trampolines);
+ current_trampolines = NULL;
+ }
+
+ /* create inner functions if any */
+ entity_t **inner = inner_functions;
+ if (inner != NULL) {
+ ir_type *rem_outer_frame = current_outer_frame;
+ current_outer_frame = get_irg_frame_type(current_ir_graph);
+ ir_type *rem_outer_value_type = current_outer_value_type;
+ current_outer_value_type = get_irg_value_param_type(current_ir_graph);
+ for (int i = ARR_LEN(inner) - 1; i >= 0; --i) {
+ create_function(inner[i]);
+ }
+ DEL_ARR_F(inner);
+
+ current_outer_value_type = rem_outer_value_type;
+ current_outer_frame = rem_outer_frame;
}
}
continue;
if (entity->kind == ENTITY_FUNCTION) {
- get_function_entity(entity);
+ if (entity->function.btk != bk_none) {
+ /* builtins have no representation */
+ continue;
+ }
+ (void)get_function_entity(entity, NULL);
} else if (entity->kind == ENTITY_VARIABLE) {
create_global_variable(entity);
}
continue;
if (entity->kind == ENTITY_FUNCTION) {
+ if (entity->function.btk != bk_none) {
+ /* builtins have no representation */
+ continue;
+ }
create_function(entity);
} else if (entity->kind == ENTITY_VARIABLE) {
assert(entity->declaration.kind
}
/* create idents for all known runtime functions */
- for (size_t i = 0; i < sizeof(rts_data) / sizeof(rts_data[0]); ++i) {
+ for (size_t i = 0; i < lengthof(rts_data); ++i) {
rts_idents[i] = new_id_from_str(rts_data[i].name);
}
ir_types_initialized = 1;
ir_type_int = get_ir_type(type_int);
+ ir_type_char = get_ir_type(type_char);
ir_type_const_char = get_ir_type(type_const_char);
ir_type_wchar_t = get_ir_type(type_wchar_t);
ir_type_void = get_ir_type(type_void);
+
+ be_params = be_get_backend_param();
+ mode_float_arithmetic = be_params->mode_float_arithmetic;
+
+ stack_param_align = be_params->stack_param_align;
}
void exit_ast2firm(void)
current_translation_unit = unit;
init_ir_types();
- inner_functions = NEW_ARR_F(entity_t *, 0);
scope_to_firm(&unit->scope);
global_asm_to_firm(unit->global_asm);
- DEL_ARR_F(inner_functions);
- inner_functions = NULL;
-
current_ir_graph = NULL;
current_translation_unit = NULL;
}
projects / cparser / blobdiff