#include "diagnostic.h"
#include "lang_features.h"
#include "types.h"
+#include "warning.h"
+#include "entitymap_t.h"
#include "driver/firm_opt.h"
#include "driver/firm_cmdline.h"
static ir_node *current_switch_cond;
static bool saw_default_label;
static ir_node **imature_blocks;
+static bool constant_folding;
static const declaration_t *current_function_decl;
static ir_node *current_function_name;
static ir_node *current_funcsig;
+static entitymap_t entitymap;
+
static struct obstack asm_obst;
typedef enum declaration_kind_t {
DECLARATION_KIND_LABEL_BLOCK,
DECLARATION_KIND_ENUM_ENTRY,
DECLARATION_KIND_COMPOUND_TYPE_INCOMPLETE,
- DECLARATION_KIND_COMPOUND_TYPE_COMPLETE
+ DECLARATION_KIND_COMPOUND_TYPE_COMPLETE,
+ DECLARATION_KIND_TYPE
} declaration_kind_t;
static ir_type *get_ir_type(type_t *type);
unsigned dbg_snprint(char *buf, unsigned len, const dbg_info *dbg)
{
const source_position_t *pos = (const source_position_t*) dbg;
- if(pos == NULL)
+ if (pos == NULL)
return 0;
return (unsigned) snprintf(buf, len, "%s:%u", pos->input_name,
pos->linenr);
const char *dbg_retrieve(const dbg_info *dbg, unsigned *line)
{
const source_position_t *pos = (const source_position_t*) dbg;
- if(pos == NULL)
+ if (pos == NULL)
return NULL;
- if(line != NULL)
+ if (line != NULL)
*line = pos->linenr;
return pos->input_name;
}
static ir_mode *mode_int, *mode_uint;
+static ir_node *_expression_to_firm(const expression_t *expression);
static ir_node *expression_to_firm(const expression_t *expression);
static inline ir_mode *get_ir_mode(type_t *type);
+static void create_local_declaration(declaration_t *declaration);
static ir_mode *init_atomic_ir_mode(atomic_type_kind_t kind)
{
unsigned flags = get_atomic_type_flags(kind);
unsigned size = get_atomic_type_size(kind);
- if( (flags & (ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_FLOAT))
+ if ( (flags & (ATOMIC_TYPE_FLAG_INTEGER | ATOMIC_TYPE_FLAG_FLOAT))
&& !(flags & ATOMIC_TYPE_FLAG_COMPLEX)) {
char name[64];
- mode_sort sort;
+ ir_mode_sort sort;
unsigned bit_size = size * 8;
bool is_signed = (flags & ATOMIC_TYPE_FLAG_SIGNED) != 0;
- mode_arithmetic arithmetic;
+ ir_mode_arithmetic arithmetic;
unsigned modulo_shift;
- if(flags & ATOMIC_TYPE_FLAG_INTEGER) {
+ if (flags & ATOMIC_TYPE_FLAG_INTEGER) {
assert(! (flags & ATOMIC_TYPE_FLAG_FLOAT));
snprintf(name, sizeof(name), "i%s%d", is_signed?"":"u", bit_size);
sort = irms_int_number;
/* initialize pointer modes */
char name[64];
- mode_sort sort = irms_reference;
+ ir_mode_sort sort = irms_reference;
unsigned bit_size = machine_size;
bool is_signed = 0;
- mode_arithmetic arithmetic = irma_twos_complement;
+ ir_mode_arithmetic arithmetic = irma_twos_complement;
unsigned modulo_shift
= bit_size < machine_size ? machine_size : bit_size;
switch(type->kind) {
case TYPE_ERROR:
- panic("error type occured");
+ panic("error type occurred");
case TYPE_ATOMIC:
return get_atomic_type_size(type->atomic.akind);
case TYPE_COMPLEX:
{
type = skip_typeref(type);
- if(is_type_array(type) && type->array.is_vla) {
+ if (is_type_array(type) && type->array.is_vla) {
ir_node *size_node = type->array.size_node;
- if(size_node == NULL) {
+ if (size_node == NULL) {
size_node = expression_to_firm(type->array.size_expression);
assert(!is_Const(size_node));
type->array.size_node = size_node;
dbg_info *dbgi = get_dbg_info(&function_type->base.source_position);
ir_type *irtype = new_d_type_method(id, n_parameters, n_results, dbgi);
- if(return_type != type_void) {
+ if (return_type != type_void) {
ir_type *restype = get_ir_type(return_type);
set_method_res_type(irtype, 0, restype);
}
function_parameter_t *parameter = function_type->parameters;
int n = 0;
- for( ; parameter != NULL; parameter = parameter->next) {
+ for ( ; parameter != NULL; parameter = parameter->next) {
ir_type *p_irtype = get_ir_type(parameter->type);
set_method_param_type(irtype, n, p_irtype);
++n;
}
- if(function_type->variadic || function_type->unspecified_parameters) {
+ if (function_type->variadic || function_type->unspecified_parameters) {
set_method_variadicity(irtype, variadicity_variadic);
}
const int align = get_type_alignment_bytes(ir_element_type);
set_type_alignment_bytes(ir_type, align);
- if(type->size_constant) {
+ if (type->size_constant) {
int n_elements = type->size;
set_array_bounds_int(ir_type, 0, 0, n_elements);
size_t elemsize = get_type_size_bytes(ir_element_type);
- if(elemsize % align > 0) {
+ if (elemsize % align > 0) {
elemsize += align - (elemsize % align);
}
set_type_size_bytes(ir_type, n_elements * elemsize);
unsigned size = fold_constant(type->size);
assert(!is_type_float(base));
- if(is_type_signed(base)) {
+ if (is_type_signed(base)) {
return get_signed_int_type_for_bit_size(irbase, size);
} else {
return get_unsigned_int_type_for_bit_size(irbase, size);
};
/**
- * Construct firm type from ast struct tyep.
+ * Construct firm type from ast struct type.
*
* As anonymous inner structs get flattened to a single firm type, we might get
* irtype, outer_offset and out_align passed (they represent the position of
bool incomplete, bool is_union)
{
declaration_t *declaration = type->declaration;
- declaration_kind_t kind = declaration->declaration_kind;
+ declaration_kind_t kind = (declaration_kind_t)declaration->declaration_kind;
- if(kind == DECLARATION_KIND_COMPOUND_TYPE_COMPLETE
+ if (kind == DECLARATION_KIND_COMPOUND_TYPE_COMPLETE
|| (kind == DECLARATION_KIND_COMPOUND_TYPE_INCOMPLETE
&& incomplete))
return declaration->v.irtype;
size_t bit_offset = 0;
size_t size = 0;
- if(irtype == NULL) {
+ if (irtype == NULL) {
symbol_t *symbol = declaration->symbol;
ident *id;
- if(symbol != NULL) {
+ if (symbol != NULL) {
id = new_id_from_str(symbol->string);
} else {
if (is_union) {
align_all = *outer_align;
}
- if(incomplete)
+ if (incomplete)
return irtype;
declaration->declaration_kind = DECLARATION_KIND_COMPOUND_TYPE_COMPLETE;
declaration_t *entry = declaration->scope.declarations;
for( ; entry != NULL; entry = entry->next) {
- if(entry->namespc != NAMESPACE_NORMAL)
+ if (entry->namespc != NAMESPACE_NORMAL)
continue;
size_t prev_offset = offset;
dbg_info *dbgi = get_dbg_info(&entry->source_position);
ident *ident;
- if(symbol != NULL) {
+ if (symbol != NULL) {
ident = new_id_from_str(symbol->string);
} else {
- if(entry_type->kind == TYPE_COMPOUND_STRUCT) {
+ if (entry_type->kind == TYPE_COMPOUND_STRUCT) {
create_compound_type(&entry_type->compound, irtype, &offset,
&align_all, false, COMPOUND_IS_STRUCT);
goto finished_member;
- } else if(entry_type->kind == TYPE_COMPOUND_UNION) {
+ } else if (entry_type->kind == TYPE_COMPOUND_UNION) {
create_compound_type(&entry_type->compound, irtype, &offset,
&align_all, false, COMPOUND_IS_UNION);
goto finished_member;
}
ir_type *base_irtype;
- if(entry_type->kind == TYPE_BITFIELD) {
+ if (entry_type->kind == TYPE_BITFIELD) {
base_irtype = get_ir_type(entry_type->bitfield.base_type);
} else {
base_irtype = get_ir_type(entry_type);
size_t base;
size_t bits_remainder;
- if(entry_type->kind == TYPE_BITFIELD) {
+ if (entry_type->kind == TYPE_BITFIELD) {
size_t size_bits = fold_constant(entry_type->bitfield.size);
size_t rest_size_bits = (entry_alignment - misalign)*8 - bit_offset;
- if(size_bits > rest_size_bits) {
+ if (size_bits > rest_size_bits) {
/* start a new bucket */
offset += entry_alignment - misalign;
bit_offset = 0;
bit_offset = bit_offset + (size_bits % 8);
} else {
size_t entry_size = get_type_size_bytes(base_irtype);
- if(misalign > 0 || bit_offset > 0)
+ if (misalign > 0 || bit_offset > 0)
offset += entry_alignment - misalign;
base = offset;
bit_offset = 0;
}
- if(entry_alignment > align_all) {
- if(entry_alignment % align_all != 0) {
+ if (entry_alignment > align_all) {
+ if (entry_alignment % align_all != 0) {
panic("uneven alignments not supported yet");
}
align_all = entry_alignment;
}
size_t misalign = offset % align_all;
- if(misalign > 0 || bit_offset > 0) {
+ if (misalign > 0 || bit_offset > 0) {
size += align_all - misalign;
}
- if(outer_offset != NULL) {
+ if (outer_offset != NULL) {
if (!is_union) {
*outer_offset = offset;
} else {
}
if (align_all > *outer_align) {
- if(align_all % *outer_align != 0) {
+ if (align_all % *outer_align != 0) {
panic("uneven alignments not supported yet");
}
*outer_align = align_all;
tarval *const one = get_mode_one(mode);
tarval * tv_next = get_tarval_null(mode);
+ bool constant_folding_old = constant_folding;
+ constant_folding = true;
+
declaration_t *declaration = type->declaration->next;
for (; declaration != NULL; declaration = declaration->next) {
if (declaration->storage_class != STORAGE_CLASS_ENUM_ENTRY)
tv_next = tarval_add(tv_next, one);
}
+ constant_folding = constant_folding_old;
+
return ir_type_int;
}
case TYPE_INVALID:
break;
}
- if(firm_type == NULL)
+ if (firm_type == NULL)
panic("unknown type found");
type->base.firm_type = firm_type;
ir_type *irtype = get_ir_type(type);
/* firm doesn't report a mode for arrays somehow... */
- if(is_Array_type(irtype)) {
+ if (is_Array_type(irtype)) {
return mode_P_data;
}
return mode;
}
-static ident *predef_idents[rts_max];
-
/** Names of the runtime functions. */
static const struct {
int id; /**< the rts id */
} rts_data[] = {
{ rts_debugbreak, 0, "__debugbreak", 0, _MS },
{ rts_abort, 0, "abort", 0, _C89 },
+ { rts_alloca, 1, "alloca", 1, _ALL },
{ rts_abs, 1, "abs", 1, _C89 },
{ rts_labs, 1, "labs", 1, _C89 },
{ rts_llabs, 1, "llabs", 1, _C99 },
{ rts_strncmp, 1, "strncmp", 3, _C89 }
};
+static ident *rts_idents[sizeof(rts_data) / sizeof(rts_data[0])];
+
/**
* Mangles an entity linker (ld) name for win32 usage.
*
declaration_t *declaration);
create_ld_ident_func create_ld_ident = create_ld_ident_linux_elf;
-static ir_entity* get_function_entity(declaration_t *declaration)
+/**
+ * Creates an entity representing a function.
+ *
+ * @param declaration the function declaration
+ */
+static ir_entity *get_function_entity(declaration_t *declaration)
{
- if(declaration->declaration_kind == DECLARATION_KIND_FUNCTION)
+ if (declaration->declaration_kind == DECLARATION_KIND_FUNCTION)
return declaration->v.entity;
assert(declaration->declaration_kind == DECLARATION_KIND_UNKNOWN);
ir_type *ir_type_method = get_ir_type(declaration->type);
assert(is_Method_type(ir_type_method));
- dbg_info *const dbgi = get_dbg_info(&declaration->source_position);
- ir_entity *const entity = new_d_entity(global_type, id, ir_type_method, dbgi);
+ /* already an entity defined? */
+ ir_entity *entity = entitymap_get(&entitymap, symbol);
+ if (entity != NULL) {
+ if (get_entity_visibility(entity) == visibility_external_allocated
+ && declaration->init.statement != NULL) {
+ set_entity_visibility(entity, visibility_external_visible);
+ }
+ goto entity_created;
+ }
+
+ dbg_info *const dbgi = get_dbg_info(&declaration->source_position);
+ entity = new_d_entity(global_type, id, ir_type_method, dbgi);
set_entity_ld_ident(entity, create_ld_ident(entity, declaration));
- if(declaration->storage_class == STORAGE_CLASS_STATIC &&
+ if (declaration->storage_class == STORAGE_CLASS_STATIC &&
declaration->init.statement == NULL) {
/* this entity was declared, but never defined */
set_entity_peculiarity(entity, peculiarity_description);
}
- if(declaration->storage_class == STORAGE_CLASS_STATIC
+ if (declaration->storage_class == STORAGE_CLASS_STATIC
|| declaration->is_inline) {
set_entity_visibility(entity, visibility_local);
- } else if(declaration->init.statement != NULL) {
+ } else if (declaration->init.statement != NULL) {
set_entity_visibility(entity, visibility_external_visible);
} else {
set_entity_visibility(entity, visibility_external_allocated);
+ }
+ set_entity_allocation(entity, allocation_static);
- /* We should check for file scope here, but as long as we compile C only
- this is not needed. */
- int n_params = get_method_n_params(ir_type_method);
- int n_res = get_method_n_ress(ir_type_method);
- int i;
-
- if (n_params == 0 && n_res == 0 && id == predef_idents[rts_abort]) {
- /* found abort(), store for later */
- //abort_ent = ent;
- //abort_tp = ftype;
- } else {
- if (! firm_opt.freestanding) {
- /* check for a known runtime function */
- for (i = 0; i < rts_max; ++i) {
- /* ignore those rts functions not necessary needed for current mode */
- if ((c_mode & rts_data[i].flags) == 0)
- continue;
- if (n_params == rts_data[i].n_params && n_res == rts_data[i].n_res &&
- id == predef_idents[rts_data[i].id])
- rts_entities[rts_data[i].id] = entity;
- }
- }
+ /* We should check for file scope here, but as long as we compile C only
+ this is not needed. */
+ if (! firm_opt.freestanding) {
+ /* check for a known runtime function */
+ for (size_t i = 0; i < sizeof(rts_data) / sizeof(rts_data[0]); ++i) {
+ if (id != rts_idents[i])
+ continue;
+
+ /* ignore those rts functions not necessary needed for current mode */
+ if ((c_mode & rts_data[i].flags) == 0)
+ continue;
+ assert(rts_entities[rts_data[i].id] == NULL);
+ rts_entities[rts_data[i].id] = entity;
}
}
- set_entity_allocation(entity, allocation_static);
+ entitymap_insert(&entitymap, symbol, entity);
+
+entity_created:
declaration->declaration_kind = DECLARATION_KIND_FUNCTION;
declaration->v.entity = entity;
return entity;
}
+/**
+ * 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);
char buf[128];
tarval *tv;
size_t len;
- if(mode_is_float(mode)) {
+ if (mode_is_float(mode)) {
tv = new_tarval_from_double(cnst->v.float_value, mode);
} else {
- if(mode_is_signed(mode)) {
+ if (mode_is_signed(mode)) {
len = snprintf(buf, sizeof(buf), "%lld", cnst->v.int_value);
} else {
len = snprintf(buf, sizeof(buf), "%llu",
return new_d_Const(dbgi, mode, tv);
}
+/**
+ * Creates a Const node representing a character constant.
+ */
static ir_node *character_constant_to_firm(const const_expression_t *cnst)
{
dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
return new_d_Const(dbgi, mode, tv);
}
+/**
+ * Creates a Const node representing a wide character constant.
+ */
static ir_node *wide_character_constant_to_firm(const const_expression_t *cnst)
{
dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
return new_d_Const(dbgi, mode, tv);
}
+/**
+ * Creates a SymConst for a given entity.
+ *
+ * @param dbgi debug info
+ * @param mode the (reference) mode for the SymConst
+ * @param entity the entity
+ */
static ir_node *create_symconst(dbg_info *dbgi, ir_mode *mode,
ir_entity *entity)
{
return new_d_SymConst(dbgi, mode, sym, symconst_addr_ent);
}
+/**
+ * Creates a SymConst node representing a string constant.
+ *
+ * @param src_pos the source position of the string constant
+ * @param id_prefix a prefix for the name of the generated string constant
+ * @param value the value of the string constant
+ */
static ir_node *string_to_firm(const source_position_t *const src_pos,
const char *const id_prefix,
const string_t *const value)
return create_symconst(dbgi, mode_P_data, entity);
}
+/**
+ * Creates a SymConst node representing a string literal.
+ *
+ * @param literal the string literal
+ */
static ir_node *string_literal_to_firm(
const string_literal_expression_t* literal)
{
&literal->value);
}
+/**
+ * Creates a SymConst node representing a wide string literal.
+ *
+ * @param literal the wide string literal
+ */
static ir_node *wide_string_literal_to_firm(
const wide_string_literal_expression_t* const literal)
{
return create_symconst(dbgi, mode_P_data, entity);
}
-static ir_node *deref_address(type_t *const type, ir_node *const addr,
- dbg_info *const dbgi)
+static ir_node *deref_address(dbg_info *const dbgi, type_t *const type,
+ ir_node *const addr)
{
ir_type *irtype = get_ir_type(type);
if (is_compound_type(irtype)
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) {
+ if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
set_Load_volatility(load, volatility_is_volatile);
}
return load_res;
}
+/**
+ * Creates a strict Conv if neccessary.
+ */
static ir_node *do_strict_conv(dbg_info *dbgi, ir_node *node)
{
ir_mode *mode = get_irn_mode(node);
- if(!(get_irg_fp_model(current_ir_graph) & fp_explicit_rounding))
+ if (!(get_irg_fp_model(current_ir_graph) & fp_explicit_rounding))
return node;
- if(!mode_is_float(mode))
+ if (!mode_is_float(mode))
return node;
/* check if there is already a Conv */
- if (get_irn_op(node) == op_Conv) {
+ if (is_Conv(node)) {
/* convert it into a strict Conv */
set_Conv_strict(node, 1);
return node;
}
}
-/* Returns the correct base address depending on whether it is a parameter or a
- * normal local variable */
+/**
+ * Returns the correct base address depending on whether it is a parameter or a
+ * normal local variable.
+ */
static ir_node *get_local_frame(ir_entity *const ent)
{
ir_graph *const irg = current_ir_graph;
}
}
+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(value_mode, 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);
+}
+
static ir_node *reference_expression_to_firm(const reference_expression_t *ref)
{
dbg_info *dbgi = get_dbg_info(&ref->base.source_position);
declaration_t *declaration = ref->declaration;
type_t *type = skip_typeref(declaration->type);
+ /* make sure the type is constructed */
+ (void) get_ir_type(type);
+
switch((declaration_kind_t) declaration->declaration_kind) {
+ case DECLARATION_KIND_TYPE:
case DECLARATION_KIND_UNKNOWN:
- if (declaration->storage_class != STORAGE_CLASS_ENUM_ENTRY) {
- break;
- }
- get_ir_type(type);
- /* FALLTHROUGH */
+ break;
case DECLARATION_KIND_ENUM_ENTRY: {
ir_mode *const mode = get_ir_mode(type);
}
case DECLARATION_KIND_GLOBAL_VARIABLE: {
ir_node *const addr = get_global_var_address(dbgi, declaration);
- return deref_address(declaration->type, addr, dbgi);
+ return deref_address(dbgi, declaration->type, addr);
}
case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: {
ir_entity *entity = declaration->v.entity;
ir_node *frame = get_local_frame(entity);
ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
- return deref_address(declaration->type, sel, dbgi);
+ return deref_address(dbgi, declaration->type, sel);
}
case DECLARATION_KIND_VARIABLE_LENGTH_ARRAY:
declaration_t *declaration = ref->declaration;
switch((declaration_kind_t) declaration->declaration_kind) {
+ case DECLARATION_KIND_TYPE:
case DECLARATION_KIND_UNKNOWN:
break;
case DECLARATION_KIND_LOCAL_VARIABLE:
- panic("local variable without entity has no address");
+ /* you can store to a local variable (so we don't panic but return NULL
+ * as an indicator for no real address) */
+ return NULL;
case DECLARATION_KIND_FUNCTION: {
type_t *const type = skip_typeref(ref->base.type);
ir_mode *const mode = get_ir_mode(type);
panic("reference to declaration with unknown type found");
}
+/**
+ * Transform calls to builtin functions.
+ */
static ir_node *process_builtin_call(const call_expression_t *call)
{
dbg_info *dbgi = get_dbg_info(&call->base.source_position);
switch(symbol->ID) {
case T___builtin_alloca: {
- if(call->arguments == NULL || call->arguments->next != NULL) {
+ if (call->arguments == NULL || call->arguments->next != NULL) {
panic("invalid number of parameters on __builtin_alloca");
}
expression_t *argument = call->arguments->expression;
return res;
}
+ case T___builtin_huge_val: {
+ ir_mode *mode = get_ir_mode(function_type->function.return_type);
+ tarval *tv = get_mode_infinite(mode);
+ ir_node *res = new_d_Const(dbgi, mode, tv);
+ return res;
+ }
case T___builtin_nan:
case T___builtin_nanf:
case T___builtin_nand: {
}
}
+/**
+ * Transform a call expression.
+ * Handles some special cases, like alloca() calls, which must be resolved BEFORE the inlines runs.
+ * Inlining routines calling alloca() is dangerous, 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)
{
+ dbg_info *dbgi = get_dbg_info(&call->base.source_position);
assert(get_cur_block() != NULL);
expression_t *function = call->function;
- if(function->kind == EXPR_BUILTIN_SYMBOL) {
+ if (function->kind == EXPR_BUILTIN_SYMBOL) {
return process_builtin_call(call);
}
+ if (function->kind == EXPR_REFERENCE) {
+ const reference_expression_t *ref = &function->reference;
+ declaration_t *declaration = ref->declaration;
+
+ if ((declaration_kind_t)declaration->declaration_kind == DECLARATION_KIND_FUNCTION) {
+ if (declaration->v.entity == rts_entities[rts_alloca]) {
+ /* handle alloca() call */
+ expression_t *argument = call->arguments->expression;
+ ir_node *size = expression_to_firm(argument);
+
+ size = create_conv(dbgi, size, get_ir_mode(type_size_t));
+
+ 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);
+ set_store(proj_m);
+ ir_node *res = new_Proj(alloca, mode_P_data, pn_Alloc_res);
+
+ return res;
+ }
+ }
+ }
ir_node *callee = expression_to_firm(function);
type_t *type = skip_typeref(function->base.type);
assert(is_type_function(points_to));
function_type_t *function_type = &points_to->function;
- int n_parameters = 0;
- call_argument_t *argument = call->arguments;
- for( ; argument != NULL; argument = argument->next) {
- ++n_parameters;
- }
-
- dbg_info *dbgi = get_dbg_info(&call->base.source_position);
-
+ int n_parameters = 0;
ir_type *ir_method_type = get_ir_type((type_t*) function_type);
ir_type *new_method_type = NULL;
- if(function_type->variadic || function_type->unspecified_parameters) {
+ if (function_type->variadic || function_type->unspecified_parameters) {
+ const call_argument_t *argument = call->arguments;
+ for( ; argument != NULL; argument = argument->next) {
+ ++n_parameters;
+ }
+
/* 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);
+ n_parameters, n_res, dbgi);
set_method_calling_convention(new_method_type,
get_method_calling_convention(ir_method_type));
set_method_additional_properties(new_method_type,
set_method_res_type(new_method_type, i,
get_method_res_type(ir_method_type, i));
}
+ argument = call->arguments;
+ for(int i = 0; i < n_parameters; ++i, argument = argument->next) {
+ expression_t *expression = argument->expression;
+ ir_type *irtype = get_ir_type(expression->base.type);
+ set_method_param_type(new_method_type, i, irtype);
+ }
+ ir_method_type = new_method_type;
+ } else {
+ n_parameters = get_method_n_params(ir_method_type);
}
+
ir_node *in[n_parameters];
- argument = call->arguments;
- int n = 0;
- for( ; argument != NULL; argument = argument->next) {
+ const call_argument_t *argument = call->arguments;
+ for(int n = 0; n < n_parameters; ++n) {
expression_t *expression = argument->expression;
ir_node *arg_node = expression_to_firm(expression);
arg_node = do_strict_conv(dbgi, arg_node);
in[n] = arg_node;
- if(new_method_type != NULL) {
- ir_type *irtype = get_ir_type(expression->base.type);
- set_method_param_type(new_method_type, n, irtype);
- }
- n++;
+ argument = argument->next;
}
- assert(n == n_parameters);
-
- if(new_method_type != NULL)
- ir_method_type = new_method_type;
ir_node *store = get_store();
ir_node *node = new_d_Call(dbgi, store, callee, n_parameters, in,
type_t *return_type = skip_typeref(function_type->return_type);
ir_node *result = NULL;
- if(!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
+ if (!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
ir_mode *mode;
- if(is_type_scalar(return_type)) {
+ if (is_type_scalar(return_type)) {
mode = get_ir_mode(return_type);
} else {
mode = mode_P_data;
ir_node *memory = get_store();
- if(is_type_scalar(type)) {
+ if (is_type_scalar(type)) {
ir_node *store = new_d_Store(dbgi, memory, addr, value);
ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
- if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE)
+ if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE)
set_Store_volatility(store, volatility_is_volatile);
set_store(store_mem);
} else {
assert(offset >= 0 && size >= 0);
assert(offset + size <= mode_size);
- if(size == mode_size) {
+ if (size == mode_size) {
return all_one;
}
return mask1;
}
-static void bitfield_store_to_firm(const unary_expression_t *expression,
- ir_node *value)
+static void bitfield_store_to_firm(const select_expression_t *expression,
+ ir_node *addr, ir_node *value)
{
- expression_t *select = expression->value;
- assert(select->kind == EXPR_SELECT);
- type_t *type = select->base.type;
- assert(type->kind == TYPE_BITFIELD);
- ir_mode *mode = get_ir_mode(type->bitfield.base_type);
- ir_node *addr = expression_to_addr(select);
+ type_t *type = expression->base.type;
+ ir_mode *mode = get_ir_mode(type);
- assert(get_irn_mode(value) == mode);
+ assert(get_irn_mode(value) == mode || is_Bad(value));
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
/* kill upper bits of value and shift to right position */
- ir_entity *entity = select->select.compound_entry->v.entity;
+ ir_entity *entity = expression->compound_entry->v.entity;
int bitoffset = get_entity_offset_bits_remainder(entity);
ir_type *entity_type = get_entity_type(entity);
int bitsize = get_mode_size_bits(get_type_mode(entity_type));
ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
set_store(store_mem);
- if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
set_Load_volatility(load, volatility_is_volatile);
set_Store_volatility(store, volatility_is_volatile);
}
}
-static void set_value_for_expression(const expression_t *expression,
- ir_node *value)
+static ir_node *bitfield_extract_to_firm(const select_expression_t *expression,
+ ir_node *addr)
+{
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ type_t *type = expression->base.type;
+ ir_mode *mode = get_ir_mode(type);
+ ir_node *mem = get_store();
+ ir_node *load = new_d_Load(dbgi, mem, addr, mode);
+ 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);
+
+ load_res = create_conv(dbgi, load_res, mode_int);
+
+ set_store(load_mem);
+
+ /* kill upper bits */
+ ir_entity *entity = expression->compound_entry->v.entity;
+ int bitoffset = get_entity_offset_bits_remainder(entity);
+ ir_type *entity_type = get_entity_type(entity);
+ int bitsize = get_mode_size_bits(get_type_mode(entity_type));
+ long shift_bitsl = machine_size - bitoffset - bitsize;
+ assert(shift_bitsl >= 0);
+ tarval *tvl = new_tarval_from_long(shift_bitsl, mode_uint);
+ ir_node *countl = new_d_Const(dbgi, mode_uint, tvl);
+ ir_node *shiftl = new_d_Shl(dbgi, load_res, countl, mode_int);
+
+ long shift_bitsr = bitoffset + shift_bitsl;
+ assert(shift_bitsr <= (long) machine_size);
+ tarval *tvr = new_tarval_from_long(shift_bitsr, mode_uint);
+ ir_node *countr = new_d_Const(dbgi, mode_uint, tvr);
+ ir_node *shiftr;
+ if (mode_is_signed(mode)) {
+ shiftr = new_d_Shrs(dbgi, shiftl, countr, mode_int);
+ } else {
+ shiftr = new_d_Shr(dbgi, shiftl, countr, mode_int);
+ }
+
+ return create_conv(dbgi, shiftr, mode);
+}
+
+static void 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);
- if(expression->kind == EXPR_REFERENCE) {
+ if (expression->kind == EXPR_REFERENCE) {
const reference_expression_t *ref = &expression->reference;
declaration_t *declaration = ref->declaration;
assert(declaration->declaration_kind != DECLARATION_KIND_UNKNOWN);
- if(declaration->declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
+ if (declaration->declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
set_value(declaration->v.value_number, value);
return;
}
}
- if(expression->kind == EXPR_UNARY_BITFIELD_EXTRACT) {
- bitfield_store_to_firm(&expression->unary, value);
- return;
+ if (addr == NULL)
+ addr = expression_to_addr(expression);
+
+ type_t *type = skip_typeref(expression->base.type);
+
+ if (expression->kind == EXPR_SELECT) {
+ const select_expression_t *select = &expression->select;
+
+ declaration_t *declaration = select->compound_entry;
+ if (declaration->type->kind == TYPE_BITFIELD) {
+ bitfield_store_to_firm(select, addr, value);
+ return;
+ }
}
- ir_node *addr = expression_to_addr(expression);
- type_t *type = skip_typeref(expression->base.type);
assign_value(dbgi, addr, type, value);
}
-static ir_node *create_conv(dbg_info *dbgi, ir_node *value, ir_mode *dest_mode)
+static void set_value_for_expression(const expression_t *expression,
+ ir_node *value)
{
- ir_mode *value_mode = get_irn_mode(value);
+ set_value_for_expression_addr(expression, value, NULL);
+}
- if (value_mode == dest_mode || is_Bad(value))
- return value;
+static ir_node *get_value_from_lvalue(const expression_t *expression,
+ ir_node *addr)
+{
+ if (expression->kind == EXPR_REFERENCE) {
+ const reference_expression_t *ref = &expression->reference;
- if(dest_mode == mode_b) {
- ir_node *zero = new_Const(value_mode, 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;
+ declaration_t *declaration = ref->declaration;
+ assert(declaration->declaration_kind != DECLARATION_KIND_UNKNOWN);
+ if (declaration->declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
+ assert(addr == NULL);
+ ir_mode *mode = get_ir_mode(expression->base.type);
+ return get_value(declaration->v.value_number, mode);
+ }
}
- return new_d_Conv(dbgi, value, dest_mode);
+ assert(addr != NULL);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+
+ ir_node *value;
+ if (expression->kind == EXPR_SELECT &&
+ expression->select.compound_entry->type->kind == TYPE_BITFIELD){
+ value = bitfield_extract_to_firm(&expression->select, addr);
+ } else {
+ value = deref_address(dbgi, expression->base.type, addr);
+ }
+
+ return value;
}
+
static ir_node *create_incdec(const unary_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- type_t *type = skip_typeref(expression->base.type);
- ir_mode *mode = get_ir_mode(type);
- expression_t *value = expression->value;
+ dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
+ const expression_t *value_expr = expression->value;
+ ir_node *addr = expression_to_addr(value_expr);
+ ir_node *value = get_value_from_lvalue(value_expr, addr);
- ir_node *value_node = expression_to_firm(value);
+ type_t *type = skip_typeref(expression->base.type);
+ ir_mode *mode = get_ir_mode(expression->base.type);
ir_node *offset;
- if(is_type_pointer(type)) {
+ if (is_type_pointer(type)) {
pointer_type_t *pointer_type = &type->pointer;
offset = get_type_size(pointer_type->points_to);
} else {
offset = new_Const(mode, get_mode_one(mode));
}
+ ir_node *result;
+ ir_node *store_value;
switch(expression->base.kind) {
- case EXPR_UNARY_POSTFIX_INCREMENT: {
- ir_node *new_value = new_d_Add(dbgi, value_node, offset, mode);
- set_value_for_expression(value, new_value);
- return value_node;
- }
- case EXPR_UNARY_POSTFIX_DECREMENT: {
- ir_node *new_value = new_d_Sub(dbgi, value_node, offset, mode);
- set_value_for_expression(value, new_value);
- return value_node;
- }
- case EXPR_UNARY_PREFIX_INCREMENT: {
- ir_node *new_value = new_d_Add(dbgi, value_node, offset, mode);
- set_value_for_expression(value, new_value);
- return new_value;
- }
- case EXPR_UNARY_PREFIX_DECREMENT: {
- ir_node *new_value = new_d_Sub(dbgi, value_node, offset, mode);
- set_value_for_expression(value, new_value);
- return new_value;
- }
+ case EXPR_UNARY_POSTFIX_INCREMENT:
+ result = value;
+ store_value = new_d_Add(dbgi, value, offset, mode);
+ break;
+ case EXPR_UNARY_POSTFIX_DECREMENT:
+ result = value;
+ store_value = new_d_Sub(dbgi, value, offset, mode);
+ break;
+ case EXPR_UNARY_PREFIX_INCREMENT:
+ result = new_d_Add(dbgi, value, offset, mode);
+ store_value = result;
+ break;
+ case EXPR_UNARY_PREFIX_DECREMENT:
+ result = new_d_Sub(dbgi, value, offset, mode);
+ store_value = result;
+ break;
default:
panic("no incdec expr in create_incdec");
- return NULL;
}
+
+ set_value_for_expression_addr(value_expr, store_value, addr);
+
+ return result;
}
static bool is_local_variable(expression_t *expression)
}
}
-static ir_node *bitfield_extract_to_firm(const unary_expression_t *expression)
-{
- expression_t *select = expression->value;
- assert(select->kind == EXPR_SELECT);
-
- type_t *type = select->base.type;
- assert(type->kind == TYPE_BITFIELD);
- ir_mode *mode = get_ir_mode(type->bitfield.base_type);
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_node *addr = expression_to_addr(select);
- ir_node *mem = get_store();
- ir_node *load = new_d_Load(dbgi, mem, addr, mode);
- 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);
-
- load_res = create_conv(dbgi, load_res, mode_int);
-
- set_store(load_mem);
-
- /* kill upper bits */
- ir_entity *entity = select->select.compound_entry->v.entity;
- int bitoffset = get_entity_offset_bits_remainder(entity);
- ir_type *entity_type = get_entity_type(entity);
- int bitsize = get_mode_size_bits(get_type_mode(entity_type));
- long shift_bitsl = machine_size - bitoffset - bitsize;
- assert(shift_bitsl >= 0);
- tarval *tvl = new_tarval_from_long(shift_bitsl, mode_uint);
- ir_node *countl = new_d_Const(dbgi, mode_uint, tvl);
- ir_node *shiftl = new_d_Shl(dbgi, load_res, countl, mode_int);
-
- long shift_bitsr = bitoffset + shift_bitsl;
- assert(shift_bitsr <= (long) machine_size);
- tarval *tvr = new_tarval_from_long(shift_bitsr, mode_uint);
- ir_node *countr = new_d_Const(dbgi, mode_uint, tvr);
- ir_node *shiftr;
- if(mode_is_signed(mode)) {
- shiftr = new_d_Shrs(dbgi, shiftl, countr, mode_int);
- } else {
- shiftr = new_d_Shr(dbgi, shiftl, countr, mode_int);
- }
-
- return create_conv(dbgi, shiftr, mode);
-}
-
static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
type_t *type = skip_typeref(expression->base.type);
- if(expression->base.kind == EXPR_UNARY_TAKE_ADDRESS)
+ if (expression->base.kind == EXPR_UNARY_TAKE_ADDRESS)
return expression_to_addr(expression->value);
const expression_t *value = expression->value;
return new_d_Not(dbgi, value_node, mode);
}
case EXPR_UNARY_NOT: {
- ir_node *value_node = expression_to_firm(value);
- ir_mode *mode = get_ir_mode(type);
- if(get_irn_mode(value_node) != mode_b) {
- value_node = create_conv(dbgi, value_node, mode_b);
- }
- value_node = new_d_Not(dbgi, value_node, mode_b);
- if(mode != mode_b) {
- value_node = create_conv(dbgi, value_node, mode);
- }
- return value_node;
+ ir_node *value_node = _expression_to_firm(value);
+ value_node = create_conv(dbgi, value_node, mode_b);
+ ir_node *res = new_d_Not(dbgi, value_node, mode_b);
+ return res;
}
case EXPR_UNARY_DEREFERENCE: {
ir_node *value_node = expression_to_firm(value);
type_t *value_type = skip_typeref(value->base.type);
assert(is_type_pointer(value_type));
type_t *points_to = value_type->pointer.points_to;
- return deref_address(points_to, value_node, dbgi);
+ return deref_address(dbgi, points_to, value_node);
}
case EXPR_UNARY_POSTFIX_INCREMENT:
case EXPR_UNARY_POSTFIX_DECREMENT:
return create_incdec(expression);
case EXPR_UNARY_CAST: {
ir_node *value_node = expression_to_firm(value);
- if(is_type_scalar(type)) {
+ 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);
}
case EXPR_UNARY_CAST_IMPLICIT: {
ir_node *value_node = expression_to_firm(value);
- if(is_type_scalar(type)) {
+ if (is_type_scalar(type)) {
ir_mode *mode = get_ir_mode(type);
return create_conv(dbgi, value_node, mode);
} else {
}
}
case EXPR_UNARY_ASSUME:
- if(firm_opt.confirm)
+ if (firm_opt.confirm)
return handle_assume(dbgi, value);
else
return NULL;
- case EXPR_UNARY_BITFIELD_EXTRACT:
- return bitfield_extract_to_firm(expression);
default:
break;
panic("invalid UNEXPR type found");
}
+/**
+ * produces a 0/1 depending of the value of a mode_b node
+ */
static ir_node *produce_condition_result(const expression_t *expression,
dbg_info *dbgi)
{
return val;
}
-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);
-
- if(is_constant_expression(expression->left)) {
- long val = fold_constant(expression->left);
- expression_kind_t ekind = expression->base.kind;
- if((ekind == EXPR_BINARY_LOGICAL_AND && val != 0)
- || (ekind == EXPR_BINARY_LOGICAL_OR && val == 0)) {
- return expression_to_firm(expression->right);
- } else {
- assert((ekind == EXPR_BINARY_LOGICAL_AND && val == 0)
- || (ekind == EXPR_BINARY_LOGICAL_OR && val != 0));
- return new_Const(mode, get_mode_one(mode));
- }
- }
-
- return produce_condition_result((const expression_t*) expression, dbgi);
-}
-
-typedef ir_node * (*create_arithmetic_func)(dbg_info *dbgi, ir_node *left,
- ir_node *right, ir_mode *mode);
-
-static ir_node *create_arithmetic_binop(const binary_expression_t *expression,
- create_arithmetic_func func)
-{
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_node *left = expression_to_firm(expression->left);
- ir_node *right = expression_to_firm(expression->right);
- type_t *type = expression->right->base.type;
- /* be careful with the modes, because in arithmetic assign nodes only
- * the right operand has the mode of the arithmetic already */
- ir_mode *mode = get_ir_mode(type);
- left = create_conv(dbgi, left, mode);
- ir_node *res = func(dbgi, left, right, mode);
-
- return res;
-}
-
-static ir_node *pointer_arithmetic(ir_node *const pointer,
- ir_node * integer,
- type_t *const type,
- dbg_info *const dbgi,
- const create_arithmetic_func func)
+static ir_node *adjust_for_pointer_arithmetic(dbg_info *dbgi,
+ ir_node *value, type_t *type)
{
pointer_type_t *const pointer_type = &type->pointer;
type_t *const points_to = pointer_type->points_to;
const unsigned elem_size = get_type_size_const(points_to);
assert(elem_size >= 1);
- if (elem_size > 1) {
- integer = create_conv(dbgi, integer, mode_int);
- ir_node *const cnst = new_Const_long(mode_int, (long)elem_size);
- ir_node *const mul = new_d_Mul(dbgi, integer, cnst, mode_int);
- integer = mul;
- }
-
- ir_mode *const mode = get_ir_mode(type);
- return func(dbgi, pointer, integer, mode);
-}
-
-static ir_node *create_arithmetic_assign_binop(
- const binary_expression_t *expression, create_arithmetic_func func)
-{
- dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
- type_t *const type = skip_typeref(expression->base.type);
- ir_node *value;
-
- if (is_type_pointer(type)) {
- ir_node *const pointer = expression_to_firm(expression->left);
- ir_node * integer = expression_to_firm(expression->right);
- value = pointer_arithmetic(pointer, integer, type, dbgi, func);
- } else {
- value = create_arithmetic_binop(expression, func);
- }
-
- ir_mode *const mode = get_ir_mode(type);
- value = create_conv(dbgi, value, mode);
- set_value_for_expression(expression->left, value);
-
- return value;
-}
-
-static ir_node *create_add(const binary_expression_t *expression)
-{
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_node *left = expression_to_firm(expression->left);
- ir_node *right = expression_to_firm(expression->right);
- type_t *type = expression->base.type;
-
- expression_t *expr_left = expression->left;
- expression_t *expr_right = expression->right;
- type_t *type_left = skip_typeref(expr_left->base.type);
- type_t *type_right = skip_typeref(expr_right->base.type);
-
- if(is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) {
- ir_mode *const mode = get_ir_mode(type);
- return new_d_Add(dbgi, left, right, mode);
- }
-
- if (is_type_pointer(type_left)) {
- return pointer_arithmetic(left, right, type, dbgi, new_d_Add);
- } else {
- assert(is_type_pointer(type_right));
- return pointer_arithmetic(right, left, type, dbgi, new_d_Add);
- }
-}
-
-static ir_node *create_sub(const binary_expression_t *expression)
-{
- dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
- expression_t *const expr_left = expression->left;
- expression_t *const expr_right = expression->right;
- ir_node *const left = expression_to_firm(expr_left);
- ir_node *const right = expression_to_firm(expr_right);
- type_t *const type = expression->base.type;
- type_t *const type_left = skip_typeref(expr_left->base.type);
- type_t *const type_right = skip_typeref(expr_right->base.type);
-
- if (is_type_arithmetic(type_left) && is_type_arithmetic(type_right)) {
- ir_mode *const mode = get_ir_mode(type);
- return new_d_Sub(dbgi, left, right, mode);
- } else if (is_type_pointer(type_left) && is_type_pointer(type_right)) {
- const pointer_type_t *const ptr_type = &type_left->pointer;
-
- ir_node *const elem_size = get_type_size(ptr_type->points_to);
- ir_mode *const mode = get_ir_mode(type);
- ir_node *const conv_size = new_d_Conv(dbgi, elem_size, mode);
- ir_node *const sub = new_d_Sub(dbgi, left, right, mode);
- ir_node *const no_mem = new_NoMem();
- ir_node *const div = new_d_DivRL(dbgi, no_mem, sub, conv_size, mode,
- op_pin_state_floats);
- return new_d_Proj(dbgi, div, mode, pn_Div_res);
- }
+ if (elem_size == 1)
+ return value;
- assert(is_type_pointer(type_left));
- return pointer_arithmetic(left, right, type_left, dbgi, new_d_Sub);
+ value = create_conv(dbgi, value, mode_int);
+ ir_node *const cnst = new_Const_long(mode_int, (long)elem_size);
+ ir_node *const mul = new_d_Mul(dbgi, value, cnst, mode_int);
+ return mul;
}
-static ir_node *create_shift(const binary_expression_t *expression)
+static ir_node *create_op(dbg_info *dbgi, const binary_expression_t *expression,
+ ir_node *left, ir_node *right)
{
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_node *left = expression_to_firm(expression->left);
- ir_node *right = expression_to_firm(expression->right);
- type_t *type = expression->base.type;
- ir_mode *mode = get_ir_mode(type);
-
- /* firm always wants the shift count to be unsigned */
- right = create_conv(dbgi, right, mode_uint);
+ ir_mode *mode;
+ type_t *type_left = skip_typeref(expression->left->base.type);
+ type_t *type_right = skip_typeref(expression->right->base.type);
- ir_node *res;
+ expression_kind_t kind = expression->base.kind;
- switch(expression->base.kind) {
- case EXPR_BINARY_SHIFTLEFT_ASSIGN:
+ switch (kind) {
case EXPR_BINARY_SHIFTLEFT:
- res = new_d_Shl(dbgi, left, right, mode);
- break;
+ case EXPR_BINARY_SHIFTRIGHT:
+ case EXPR_BINARY_SHIFTLEFT_ASSIGN:
case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
- case EXPR_BINARY_SHIFTRIGHT: {
- expression_t *expr_left = expression->left;
- type_t *type_left = skip_typeref(expr_left->base.type);
-
- if(is_type_signed(type_left)) {
- res = new_d_Shrs(dbgi, left, right, mode);
- } else {
- res = new_d_Shr(dbgi, left, right, mode);
- }
- break;
- }
- default:
- panic("create shift op called for non-shift op");
- }
+ mode = get_irn_mode(left);
+ right = create_conv(dbgi, right, mode_uint);
+ break;
- return res;
-}
+ case EXPR_BINARY_SUB:
+ 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);
+ 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);
+ ir_node *const no_mem = new_NoMem();
+ ir_node *const div = new_d_DivRL(dbgi, no_mem, sub, conv_size,
+ mode, op_pin_state_floats);
+ return new_d_Proj(dbgi, div, mode, pn_Div_res);
+ }
+ /* fallthrough */
+ 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);
+ break;
+ }
+ goto normal_node;
+ case EXPR_BINARY_ADD:
+ 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);
+ break;
+ } else if (is_type_pointer(type_right)) {
+ left = adjust_for_pointer_arithmetic(dbgi, left, type_right);
+ mode = get_ir_mode(type_right);
+ break;
+ }
+ goto normal_node;
-static ir_node *create_divmod(const binary_expression_t *expression)
-{
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_node *left = expression_to_firm(expression->left);
- ir_node *right = expression_to_firm(expression->right);
- ir_node *pin = new_Pin(new_NoMem());
- /* be careful with the modes, because in arithmetic assign nodes only
- * the right operand has the mode of the arithmetic already */
- type_t *type = expression->right->base.type;
- ir_mode *mode = get_ir_mode(type);
- left = create_conv(dbgi, left, mode);
- ir_node *op;
- ir_node *res;
+ default:
+normal_node:
+ mode = get_irn_mode(right);
+ left = create_conv(dbgi, left, mode);
+ break;
+ }
- switch (expression->base.kind) {
+ switch (kind) {
+ case EXPR_BINARY_ADD_ASSIGN:
+ case EXPR_BINARY_ADD:
+ return new_d_Add(dbgi, left, right, mode);
+ case EXPR_BINARY_SUB_ASSIGN:
+ case EXPR_BINARY_SUB:
+ return new_d_Sub(dbgi, left, right, mode);
+ case EXPR_BINARY_MUL_ASSIGN:
+ case EXPR_BINARY_MUL:
+ return new_d_Mul(dbgi, left, right, mode);
+ case EXPR_BINARY_BITWISE_AND:
+ case EXPR_BINARY_BITWISE_AND_ASSIGN:
+ return new_d_And(dbgi, left, right, mode);
+ case EXPR_BINARY_BITWISE_OR:
+ case EXPR_BINARY_BITWISE_OR_ASSIGN:
+ return new_d_Or(dbgi, left, right, mode);
+ case EXPR_BINARY_BITWISE_XOR:
+ case EXPR_BINARY_BITWISE_XOR_ASSIGN:
+ return new_d_Eor(dbgi, left, right, mode);
+ case EXPR_BINARY_SHIFTLEFT:
+ case EXPR_BINARY_SHIFTLEFT_ASSIGN:
+ return new_d_Shl(dbgi, left, right, mode);
+ case EXPR_BINARY_SHIFTRIGHT:
+ case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
+ if (mode_is_signed(mode)) {
+ return new_d_Shrs(dbgi, left, right, mode);
+ } else {
+ return new_d_Shr(dbgi, left, right, mode);
+ }
case EXPR_BINARY_DIV:
- case EXPR_BINARY_DIV_ASSIGN:
- if(mode_is_float(mode)) {
+ case EXPR_BINARY_DIV_ASSIGN: {
+ ir_node *pin = new_Pin(new_NoMem());
+ ir_node *op;
+ ir_node *res;
+ if (mode_is_float(mode)) {
op = new_d_Quot(dbgi, pin, left, right, mode, op_pin_state_floats);
res = new_d_Proj(dbgi, op, mode, pn_Quot_res);
} else {
op = new_d_Div(dbgi, pin, left, right, mode, op_pin_state_floats);
res = new_d_Proj(dbgi, op, mode, pn_Div_res);
}
- break;
-
+ return res;
+ }
case EXPR_BINARY_MOD:
- case EXPR_BINARY_MOD_ASSIGN:
+ case EXPR_BINARY_MOD_ASSIGN: {
+ ir_node *pin = new_Pin(new_NoMem());
assert(!mode_is_float(mode));
- op = new_d_Mod(dbgi, pin, left, right, mode, op_pin_state_floats);
- res = new_d_Proj(dbgi, op, mode, pn_Mod_res);
- break;
-
- default: panic("unexpected binary expression type in create_divmod()");
+ ir_node *op = new_d_Mod(dbgi, pin, left, right, mode,
+ op_pin_state_floats);
+ ir_node *res = new_d_Proj(dbgi, op, mode, pn_Mod_res);
+ return res;
+ }
+ default:
+ panic("unexpected expression kind");
}
-
- return res;
}
-static ir_node *create_arithmetic_assign_divmod(
- const binary_expression_t *expression)
+static ir_node *create_lazy_op(const binary_expression_t *expression)
{
- ir_node * value = create_divmod(expression);
- dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
- type_t *const type = expression->base.type;
- ir_mode *const mode = get_ir_mode(type);
-
- assert(type->kind != TYPE_POINTER);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ type_t *type = expression->base.type;
+ ir_mode *mode = get_ir_mode(type);
- value = create_conv(dbgi, value, mode);
- set_value_for_expression(expression->left, value);
+ if (is_constant_expression(expression->left)) {
+ long val = fold_constant(expression->left);
+ expression_kind_t ekind = expression->base.kind;
+ if ((ekind == EXPR_BINARY_LOGICAL_AND && val != 0)
+ || (ekind == EXPR_BINARY_LOGICAL_OR && val == 0)) {
+ return expression_to_firm(expression->right);
+ } else {
+ assert((ekind == EXPR_BINARY_LOGICAL_AND && val == 0)
+ || (ekind == EXPR_BINARY_LOGICAL_OR && val != 0));
+ return new_Const(mode, get_mode_one(mode));
+ }
+ }
- return value;
+ return produce_condition_result((const expression_t*) expression, dbgi);
}
-static ir_node *create_arithmetic_assign_shift(
- const binary_expression_t *expression)
+typedef ir_node * (*create_arithmetic_func)(dbg_info *dbgi, ir_node *left,
+ ir_node *right, ir_mode *mode);
+
+static ir_node *create_assign_binop(const binary_expression_t *expression)
{
- ir_node * value = create_shift(expression);
- dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
- type_t *const type = expression->base.type;
- ir_mode *const mode = get_ir_mode(type);
+ 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);
+ ir_node *left_addr = expression_to_addr(left_expr);
+ ir_node *left = get_value_from_lvalue(left_expr, left_addr);
+ ir_node *right = expression_to_firm(expression->right);
+ ir_node *result = create_op(dbgi, expression, left, right);
- value = create_conv(dbgi, value, mode);
- set_value_for_expression(expression->left, value);
+ result = create_conv(dbgi, result, left_mode);
+ result = do_strict_conv(dbgi, result);
- return value;
+ set_value_for_expression_addr(left_expr, result, left_addr);
+
+ return result;
}
static ir_node *binary_expression_to_firm(const binary_expression_t *expression)
return proj;
}
case EXPR_BINARY_ASSIGN: {
+ ir_node *addr = expression_to_addr(expression->left);
ir_node *right = expression_to_firm(expression->right);
- set_value_for_expression(expression->left, right);
+ set_value_for_expression_addr(expression->left, right, addr);
return right;
}
case EXPR_BINARY_ADD:
- return create_add(expression);
case EXPR_BINARY_SUB:
- return create_sub(expression);
case EXPR_BINARY_MUL:
- return create_arithmetic_binop(expression, new_d_Mul);
+ case EXPR_BINARY_DIV:
+ case EXPR_BINARY_MOD:
case EXPR_BINARY_BITWISE_AND:
- return create_arithmetic_binop(expression, new_d_And);
case EXPR_BINARY_BITWISE_OR:
- return create_arithmetic_binop(expression, new_d_Or);
case EXPR_BINARY_BITWISE_XOR:
- return create_arithmetic_binop(expression, new_d_Eor);
case EXPR_BINARY_SHIFTLEFT:
case EXPR_BINARY_SHIFTRIGHT:
- return create_shift(expression);
- case EXPR_BINARY_DIV:
- case EXPR_BINARY_MOD:
- return create_divmod(expression);
+ {
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ ir_node *left = expression_to_firm(expression->left);
+ ir_node *right = expression_to_firm(expression->right);
+ return create_op(dbgi, expression, left, right);
+ }
case EXPR_BINARY_LOGICAL_AND:
case EXPR_BINARY_LOGICAL_OR:
return create_lazy_op(expression);
case EXPR_BINARY_COMMA:
- expression_to_firm(expression->left);
- return expression_to_firm(expression->right);
+ /* create side effects of left side */
+ (void) expression_to_firm(expression->left);
+ return _expression_to_firm(expression->right);
+
case EXPR_BINARY_ADD_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_Add);
case EXPR_BINARY_SUB_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_Sub);
case EXPR_BINARY_MUL_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_Mul);
case EXPR_BINARY_MOD_ASSIGN:
case EXPR_BINARY_DIV_ASSIGN:
- return create_arithmetic_assign_divmod(expression);
case EXPR_BINARY_BITWISE_AND_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_And);
case EXPR_BINARY_BITWISE_OR_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_Or);
case EXPR_BINARY_BITWISE_XOR_ASSIGN:
- return create_arithmetic_assign_binop(expression, new_d_Eor);
case EXPR_BINARY_SHIFTLEFT_ASSIGN:
case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
- return create_arithmetic_assign_shift(expression);
+ return create_assign_binop(expression);
case EXPR_BINARY_BUILTIN_EXPECT:
- return expression_to_firm(expression->left);
+ return _expression_to_firm(expression->left);
default:
panic("TODO binexpr type");
}
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
ir_node *base_addr = expression_to_firm(expression->array_ref);
ir_node *offset = expression_to_firm(expression->index);
- offset = create_conv(dbgi, offset, mode_uint);
+
+ type_t *offset_type = skip_typeref(expression->index->base.type);
+ ir_mode *mode;
+ if (is_type_signed(offset_type)) {
+ mode = get_ir_mode(type_ssize_t);
+ } else {
+ mode = get_ir_mode(type_size_t);
+ }
+ offset = create_conv(dbgi, offset, mode);
type_t *ref_type = skip_typeref(expression->array_ref->base.type);
assert(is_type_pointer(ref_type));
pointer_type_t *pointer_type = &ref_type->pointer;
ir_node *elem_size_const = get_type_size(pointer_type->points_to);
+ elem_size_const = create_conv(dbgi, elem_size_const, mode);
ir_node *real_offset = new_d_Mul(dbgi, offset, elem_size_const,
- mode_uint);
+ mode);
ir_node *result = new_d_Add(dbgi, base_addr, real_offset, mode_P_data);
return result;
(const expression_t*) expression);
type = skip_typeref(type);
- return deref_address(type, addr, dbgi);
+ return deref_address(dbgi, type, addr);
}
static long get_offsetof_offset(const offsetof_expression_t *expression)
/* be sure the type is constructed */
(void) get_ir_type(type);
- if(designator->symbol != NULL) {
+ if (designator->symbol != NULL) {
assert(is_type_compound(type));
symbol_t *symbol = designator->symbol;
declaration_t *declaration = type->compound.declaration;
declaration_t *iter = declaration->scope.declarations;
for( ; iter != NULL; iter = iter->next) {
- if(iter->symbol == symbol) {
+ if (iter->symbol == symbol) {
break;
}
}
static ir_node *sizeof_to_firm(const typeprop_expression_t *expression)
{
type_t *type = expression->type;
- if(type == NULL) {
+ if (type == NULL) {
type = expression->tp_expression->base.type;
assert(type != NULL);
}
type = skip_typeref(type);
/* § 6.5.3.4 (2) if the type is a VLA, evaluate the expression. */
- if(is_type_array(type) && type->array.is_vla
+ if (is_type_array(type) && type->array.is_vla
&& expression->tp_expression != NULL) {
expression_to_firm(expression->tp_expression);
}
static ir_node *alignof_to_firm(const typeprop_expression_t *expression)
{
type_t *type = expression->type;
- if(type == NULL) {
+ if (type == NULL) {
/* beware: if expression is a variable reference, return the
alignment of the variable. */
const expression_t *tp_expression = expression->tp_expression;
static void init_ir_types(void);
long fold_constant(const expression_t *expression)
{
+ bool constant_folding_old = constant_folding;
+ constant_folding = true;
+
init_ir_types();
assert(is_constant_expression(expression));
ir_graph *old_current_ir_graph = current_ir_graph;
- if(current_ir_graph == NULL) {
+ if (current_ir_graph == NULL) {
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)) {
+ if (!is_Const(cnst)) {
panic("couldn't fold constant\n");
}
tarval *tv = get_Const_tarval(cnst);
- if(!tarval_is_long(tv)) {
+ if (!tarval_is_long(tv)) {
panic("result of constant folding is not integer\n");
}
+ constant_folding = constant_folding_old;
+
return get_tarval_long(tv);
}
dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
/* first try to fold a constant condition */
- if(is_constant_expression(expression->condition)) {
+ if (is_constant_expression(expression->condition)) {
long val = fold_constant(expression->condition);
- if(val) {
+ if (val) {
return expression_to_firm(expression->true_expression);
} else {
return expression_to_firm(expression->false_expression);
return val;
}
+/**
+ * Returns an IR-node representing the address of a field.
+ */
static ir_node *select_addr(const select_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
static ir_node *select_to_firm(const select_expression_t *expression)
{
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- ir_node *addr = select_addr(expression);
- type_t *type = revert_automatic_type_conversion(
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ ir_node *addr = select_addr(expression);
+ type_t *type = revert_automatic_type_conversion(
(const expression_t*) expression);
- type = skip_typeref(type);
+ type = skip_typeref(type);
- return deref_address(type, addr, dbgi);
+ declaration_t *entry = expression->compound_entry;
+ type_t *entry_type = skip_typeref(entry->type);
+
+ if (entry_type->kind == TYPE_BITFIELD) {
+ return bitfield_extract_to_firm(expression, addr);
+ }
+
+ return deref_address(dbgi, type, addr);
}
/* Values returned by __builtin_classify_type. */
static ir_node *va_arg_expression_to_firm(const va_arg_expression_t *const expr)
{
- type_t *const type = expr->base.type;
- ir_node *const ap = expression_to_firm(expr->ap);
- dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
- ir_node *const res = deref_address(type, ap, dbgi);
+ type_t *const type = expr->base.type;
+ expression_t *const ap_expr = expr->ap;
+ ir_node *const ap_addr = expression_to_addr(ap_expr);
+ ir_node *const ap = get_value_from_lvalue(ap_expr, ap_addr);
+ dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
+ 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);
- set_value_for_expression(expr->ap, add);
+ ir_node *const cnst = get_type_size(expr->base.type);
+ ir_node *const add = new_d_Add(dbgi, ap, cnst, mode_P_data);
+
+ set_value_for_expression_addr(ap_expr, add, ap_addr);
return res;
}
return expression_to_firm(expression->value);
}
+/**
+ * Returns a IR-node representing an lvalue of the given expression.
+ */
static ir_node *expression_to_addr(const expression_t *expression)
{
switch(expression->kind) {
return NULL;
}
+/**
+ * creates firm nodes for an expression. The difference between this function
+ * and expression_to_firm is, that this version might produce mode_b nodes
+ * instead of mode_Is.
+ */
static ir_node *_expression_to_firm(const expression_t *expression)
{
+#ifndef NDEBUG
+ if (!constant_folding) {
+ assert(!expression->base.transformed);
+ ((expression_t*) expression)->base.transformed = true;
+ }
+#endif
+
switch(expression->kind) {
case EXPR_CHARACTER_CONSTANT:
return character_constant_to_firm(&expression->conste);
panic("invalid expression found");
}
+static bool produces_mode_b(const expression_t *expression)
+{
+ switch (expression->kind) {
+ case EXPR_BINARY_EQUAL:
+ case EXPR_BINARY_NOTEQUAL:
+ case EXPR_BINARY_LESS:
+ case EXPR_BINARY_LESSEQUAL:
+ case EXPR_BINARY_GREATER:
+ case EXPR_BINARY_GREATEREQUAL:
+ case EXPR_BINARY_ISGREATER:
+ case EXPR_BINARY_ISGREATEREQUAL:
+ case EXPR_BINARY_ISLESS:
+ case EXPR_BINARY_ISLESSEQUAL:
+ case EXPR_BINARY_ISLESSGREATER:
+ case EXPR_BINARY_ISUNORDERED:
+ case EXPR_UNARY_NOT:
+ return true;
+
+ case EXPR_BINARY_BUILTIN_EXPECT:
+ return produces_mode_b(expression->binary.left);
+ case EXPR_BINARY_COMMA:
+ return produces_mode_b(expression->binary.right);
+
+ default:
+ return false;
+ }
+}
+
static ir_node *expression_to_firm(const expression_t *expression)
{
- ir_node *res = _expression_to_firm(expression);
+ if (!produces_mode_b(expression)) {
+ ir_node *res = _expression_to_firm(expression);
+ assert(res == NULL || get_irn_mode(res) != mode_b);
+ return res;
+ }
- if(res != NULL && get_irn_mode(res) == mode_b) {
+ if (is_constant_expression(expression)) {
+ ir_node *res = _expression_to_firm(expression);
ir_mode *mode = get_ir_mode(expression->base.type);
- if(is_Const(res)) {
- if(is_Const_null(res)) {
- return new_Const_long(mode, 0);
- } else {
- assert(is_Const_one(res));
- return new_Const_long(mode, 1);
- }
+ assert(is_Const(res));
+ if (is_Const_null(res)) {
+ return new_Const_long(mode, 0);
+ } else {
+ return new_Const_long(mode, 1);
}
-
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
- return produce_condition_result(expression, dbgi);
}
- return res;
+ /* we have to produce a 0/1 from the mode_b expression */
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ return produce_condition_result(expression, dbgi);
}
static ir_node *expression_to_modeb(const expression_t *expression)
ir_node *false_proj = new_d_Proj(dbgi, cond, mode_X, pn_Cond_false);
/* set branch prediction info based on __builtin_expect */
- if(expression->kind == EXPR_BINARY_BUILTIN_EXPECT) {
+ if (expression->kind == EXPR_BINARY_BUILTIN_EXPECT) {
long cnst = fold_constant(expression->binary.right);
cond_jmp_predicate pred;
- if(cnst == 0) {
+ if (cnst == 0) {
pred = COND_JMP_PRED_FALSE;
} else {
pred = COND_JMP_PRED_TRUE;
}
add_immBlock_pred(true_block, true_proj);
- add_immBlock_pred(false_block, false_proj);
+ if (false_block != NULL) {
+ add_immBlock_pred(false_block, false_proj);
+ }
set_cur_block(NULL);
}
declaration_kind_t declaration_kind,
ir_type *parent_type)
{
- ident *const id = new_id_from_str(declaration->symbol->string);
type_t *const type = skip_typeref(declaration->type);
+ if (is_type_function(type)) {
+ (void) get_function_entity(declaration);
+ return;
+ }
+
+ ident *const id = new_id_from_str(declaration->symbol->string);
ir_type *const irtype = get_ir_type(type);
dbg_info *const dbgi = get_dbg_info(&declaration->source_position);
ir_entity *const entity = new_d_entity(parent_type, id, irtype, dbgi);
declaration->v.entity = entity;
set_entity_variability(entity, variability_uninitialized);
set_entity_ld_ident(entity, create_ld_ident(entity, declaration));
- if(parent_type == get_tls_type())
+ if (parent_type == get_tls_type())
set_entity_allocation(entity, allocation_automatic);
- else if(declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE)
+ else if (declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE)
set_entity_allocation(entity, allocation_static);
- if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
set_entity_volatility(entity, volatility_is_volatile);
}
}
const type_path_entry_t *entry = & path->path[i];
type_t *type = skip_typeref(entry->type);
- if(is_type_compound(type)) {
+ if (is_type_compound(type)) {
fprintf(stderr, ".%s", entry->compound_entry->symbol->string);
- } else if(is_type_array(type)) {
+ } else if (is_type_array(type)) {
fprintf(stderr, "[%zd]", entry->index);
} else {
fprintf(stderr, "-INVALID-");
assert(is_type_compound(top_type) || is_type_array(top_type));
- if(ARR_LEN(path->path) == 0) {
+ if (ARR_LEN(path->path) == 0) {
return NULL;
} else {
type_path_entry_t *top = get_type_path_top(path);
size_t len;
- if(is_type_compound(top_type)) {
+ if (is_type_compound(top_type)) {
declaration_t *declaration = top_type->compound.declaration;
declaration_t *entry = declaration->scope.declarations;
top->compound_entry = entry;
top->index = 0;
len = get_compound_size(&top_type->compound);
- if(entry != NULL)
+ if (entry != NULL)
path->top_type = entry->type;
} else {
assert(is_type_array(top_type));
path->top_type = top_type->array.element_type;
len = top_type->array.size;
}
- if(initializer == NULL
+ if (initializer == NULL
|| get_initializer_kind(initializer) == IR_INITIALIZER_NULL) {
initializer = create_initializer_compound(len);
/* we have to set the entry at the 2nd latest path entry... */
size_t path_len = ARR_LEN(path->path);
assert(path_len >= 1);
- if(path_len > 1) {
+ if (path_len > 1) {
type_path_entry_t *entry = & path->path[path_len-2];
ir_initializer_t *tinitializer = entry->initializer;
set_initializer_compound_value(tinitializer, entry->index,
type_t *orig_type = top->type;
type_t *type = skip_typeref(orig_type);
- if(designator->symbol != NULL) {
+ if (designator->symbol != NULL) {
assert(is_type_compound(type));
size_t index = 0;
symbol_t *symbol = designator->symbol;
declaration_t *declaration = type->compound.declaration;
declaration_t *iter = declaration->scope.declarations;
for( ; iter != NULL; iter = iter->next, ++index) {
- if(iter->symbol == symbol) {
+ if (iter->symbol == symbol) {
break;
}
}
long index = fold_constant(array_index);
assert(index >= 0);
#ifndef NDEBUG
- if(type->array.size_constant == 1) {
+ if (type->array.size_constant == 1) {
long array_size = type->array.size;
assert(index < array_size);
}
}
path->top_type = orig_type;
- if(designator->next != NULL) {
+ if (designator->next != NULL) {
descend_into_subtype(path);
}
}
static void advance_current_object(type_path_t *path)
{
- if(path->invalid) {
+ if (path->invalid) {
/* TODO: handle this... */
panic("invalid initializer in ast2firm (excessive elements)");
return;
type_path_entry_t *top = get_type_path_top(path);
type_t *type = skip_typeref(top->type);
- if(is_type_union(type)) {
+ if (is_type_union(type)) {
top->compound_entry = NULL;
- } else if(is_type_struct(type)) {
+ } else if (is_type_struct(type)) {
declaration_t *entry = top->compound_entry;
top->index++;
entry = entry->next;
top->compound_entry = entry;
- if(entry != NULL) {
+ if (entry != NULL) {
path->top_type = entry->type;
return;
}
assert(is_type_array(type));
top->index++;
- if(!type->array.size_constant || top->index < type->array.size) {
+ if (!type->array.size_constant || top->index < type->array.size) {
return;
}
}
* can ascend in the type hierarchy and continue with another subobject */
size_t len = ARR_LEN(path->path);
- if(len > 1) {
+ if (len > 1) {
ascend_from_subtype(path);
advance_current_object(path);
} else {
for(size_t i = 0; i < initializer->len; ++i) {
const initializer_t *sub_initializer = initializer->initializers[i];
- if(sub_initializer->kind == INITIALIZER_DESIGNATOR) {
+ if (sub_initializer->kind == INITIALIZER_DESIGNATOR) {
walk_designator(&path, sub_initializer->designator.designator);
continue;
}
- if(sub_initializer->kind == INITIALIZER_VALUE) {
+ if (sub_initializer->kind == INITIALIZER_VALUE) {
/* we might have to descend into types until we're at a scalar
* type */
while(true) {
type_t *orig_top_type = path.top_type;
type_t *top_type = skip_typeref(orig_top_type);
- if(is_type_scalar(top_type))
+ if (is_type_scalar(top_type))
break;
descend_into_subtype(&path);
}
for(size_t i = 0; i < len; ++i) {
char c = 0;
- if(i < string_len)
+ if (i < string_len)
c = string[i];
tarval *tv = new_tarval_from_long(c, mode);
for(size_t i = 0; i < len; ++i) {
wchar_rep_t c = 0;
- if(i < string_len) {
+ if (i < string_len) {
c = string[i];
}
tarval *tv = new_tarval_from_long(c, mode);
assert(is_compound_type(type));
int n_members;
- if(is_Array_type(type)) {
+ if (is_Array_type(type)) {
assert(has_array_upper_bound(type, 0));
n_members = get_array_upper_bound_int(type, 0);
} else {
for(int i = 0; i < n_members; ++i) {
ir_node *addr;
ir_type *irtype;
- if(is_Array_type(type)) {
+ if (is_Array_type(type)) {
ir_entity *entity = get_array_element_entity(type);
tarval *index_tv = new_tarval_from_long(i, mode_uint);
ir_node *cnst = new_d_Const(dbgi, mode_uint, index_tv);
case IR_INITIALIZER_COMPOUND: {
assert(is_compound_type(type));
int n_members;
- if(is_Array_type(type)) {
+ if (is_Array_type(type)) {
assert(has_array_upper_bound(type, 0));
n_members = get_array_upper_bound_int(type, 0);
} else {
n_members = get_compound_n_members(type);
}
- if(get_initializer_compound_n_entries(initializer)
+ if (get_initializer_compound_n_entries(initializer)
!= (unsigned) n_members)
panic("initializer doesn't match compound type");
for(int i = 0; i < n_members; ++i) {
ir_node *addr;
ir_type *irtype;
- if(is_Array_type(type)) {
+ if (is_Array_type(type)) {
ir_entity *entity = get_array_element_entity(type);
tarval *index_tv = new_tarval_from_long(i, mode_uint);
ir_node *cnst = new_d_Const(dbgi, mode_uint, index_tv);
ir_node *frame = get_irg_frame(current_ir_graph);
ir_node *addr = new_d_simpleSel(dbgi, nomem, frame, entity);
- if(initializer->kind == INITIALIZER_VALUE) {
+ if (initializer->kind == INITIALIZER_VALUE) {
initializer_value_t *initializer_value = &initializer->value;
ir_node *value = expression_to_firm(initializer_value->value);
return;
}
- if(!is_constant_initializer(initializer)) {
+ if (!is_constant_initializer(initializer)) {
ir_initializer_t *irinitializer
= create_ir_initializer(initializer, type);
static void create_declaration_initializer(declaration_t *declaration)
{
initializer_t *initializer = declaration->init.initializer;
- if(initializer == NULL)
+ if (initializer == NULL)
return;
declaration_kind_t declaration_kind
= (declaration_kind_t) declaration->declaration_kind;
- if(declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE_ENTITY) {
+ if (declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE_ENTITY) {
create_initializer_local_variable_entity(declaration);
return;
}
- if(initializer->kind == INITIALIZER_VALUE) {
+ if (initializer->kind == INITIALIZER_VALUE) {
initializer_value_t *initializer_value = &initializer->value;
+ dbg_info *dbgi
+ = get_dbg_info(&declaration->source_position);
ir_node *value = expression_to_firm(initializer_value->value);
+ value = do_strict_conv(dbgi, value);
- if(declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
+ if (declaration_kind == DECLARATION_KIND_LOCAL_VARIABLE) {
set_value(declaration->v.value_number, value);
} else {
assert(declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE);
type_t *type = skip_typeref(declaration->type);
/* is it a variable length array? */
- if(is_type_array(type) && !type->array.size_constant) {
+ if (is_type_array(type) && !type->array.size_constant) {
create_variable_length_array(declaration);
return;
- } else if(is_type_array(type) || is_type_compound(type)) {
+ } else if (is_type_array(type) || is_type_compound(type)) {
needs_entity = true;
- } else if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ } else if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
needs_entity = true;
}
- if(needs_entity) {
+ if (needs_entity) {
ir_type *frame_type = get_irg_frame_type(current_ir_graph);
create_declaration_entity(declaration,
DECLARATION_KIND_LOCAL_VARIABLE_ENTITY,
set_irg_loc_description(current_ir_graph, next_value_number_function, declaration);
++next_value_number_function;
}
-
- create_declaration_initializer(declaration);
}
static void create_local_static_variable(declaration_t *declaration)
type_t *const type = skip_typeref(declaration->type);
ir_type *const global_type = get_glob_type();
- ident *const id = new_id_from_str(declaration->symbol->string);
ir_type *const irtype = get_ir_type(type);
dbg_info *const dbgi = get_dbg_info(&declaration->source_position);
+
+ size_t l = strlen(declaration->symbol->string);
+ char buf[l + sizeof(".%u")];
+ snprintf(buf, sizeof(buf), "%s.%%u", declaration->symbol->string);
+ ident *const id = id_unique(buf);
+
ir_entity *const entity = new_d_entity(global_type, id, irtype, dbgi);
- if(type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
+ if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
set_entity_volatility(entity, volatility_is_volatile);
}
static void return_statement_to_firm(return_statement_t *statement)
{
- if(get_cur_block() == NULL)
+ if (get_cur_block() == NULL)
return;
dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
ir_node *in[1];
int in_len;
- if(get_method_n_ress(func_irtype) > 0) {
+ if (get_method_n_ress(func_irtype) > 0) {
ir_type *res_type = get_method_res_type(func_irtype, 0);
- if(statement->value != NULL) {
+ if (statement->value != NULL) {
ir_node *node = expression_to_firm(statement->value);
node = do_strict_conv(dbgi, node);
in[0] = node;
} else {
ir_mode *mode;
- if(is_compound_type(res_type)) {
+ if (is_compound_type(res_type)) {
mode = mode_P_data;
} else {
mode = get_type_mode(res_type);
in_len = 1;
} else {
/* build return_value for its side effects */
- if(statement->value != NULL) {
+ if (statement->value != NULL) {
expression_to_firm(statement->value);
}
in_len = 0;
static ir_node *expression_statement_to_firm(expression_statement_t *statement)
{
- if(get_cur_block() == NULL)
+ if (get_cur_block() == NULL)
return NULL;
return expression_to_firm(statement->expression);
static ir_node *compound_statement_to_firm(compound_statement_t *compound)
{
+ declaration_t *declaration = compound->scope.declarations;
+ for( ; declaration != NULL; declaration = declaration->next) {
+ create_local_declaration(declaration);
+ }
+
ir_node *result = NULL;
statement_t *statement = compound->statements;
for( ; statement != NULL; statement = statement->base.next) {
- //context2firm(&statement->scope);
-
- if(statement->base.next == NULL
+ if (statement->base.next == NULL
&& statement->kind == STATEMENT_EXPRESSION) {
result = expression_statement_to_firm(
&statement->expression);
create_declaration_entity(declaration,
DECLARATION_KIND_GLOBAL_VARIABLE,
var_type);
- set_entity_visibility(declaration->v.entity, vis);
+ if (!is_type_function(skip_typeref(declaration->type))) {
+ set_entity_visibility(declaration->v.entity, vis);
+ }
return;
static void create_local_declaration(declaration_t *declaration)
{
- if(declaration->symbol == NULL)
+ if (declaration->namespc != NAMESPACE_NORMAL)
+ return;
+ /* construct type */
+ (void) get_ir_type(declaration->type);
+ if (declaration->symbol == NULL) {
return;
+ }
type_t *type = skip_typeref(declaration->type);
case STORAGE_CLASS_NONE:
case STORAGE_CLASS_AUTO:
case STORAGE_CLASS_REGISTER:
- if(is_type_function(type)) {
- if(declaration->init.statement != NULL) {
+ if (is_type_function(type)) {
+ if (declaration->init.statement != NULL) {
panic("nested functions not supported yet");
} else {
get_function_entity(declaration);
}
return;
case STORAGE_CLASS_ENUM_ENTRY:
+ /* should already be handled */
+ assert(declaration->declaration_kind == DECLARATION_KIND_ENUM_ENTRY);
+ return;
case STORAGE_CLASS_TYPEDEF:
+ declaration->declaration_kind = DECLARATION_KIND_TYPE;
+ return;
case STORAGE_CLASS_THREAD:
case STORAGE_CLASS_THREAD_EXTERN:
case STORAGE_CLASS_THREAD_STATIC:
- return;
+ break;
}
panic("invalid storage class found");
}
+static void initialize_local_declaration(declaration_t *declaration)
+{
+ if (declaration->symbol == NULL || declaration->namespc != NAMESPACE_NORMAL)
+ return;
+
+ switch ((declaration_kind_t) declaration->declaration_kind) {
+ case DECLARATION_KIND_LOCAL_VARIABLE:
+ case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY:
+ create_declaration_initializer(declaration);
+ return;
+
+ case DECLARATION_KIND_LABEL_BLOCK:
+ case DECLARATION_KIND_COMPOUND_MEMBER:
+ case DECLARATION_KIND_GLOBAL_VARIABLE:
+ case DECLARATION_KIND_VARIABLE_LENGTH_ARRAY:
+ case DECLARATION_KIND_COMPOUND_TYPE_INCOMPLETE:
+ case DECLARATION_KIND_COMPOUND_TYPE_COMPLETE:
+ case DECLARATION_KIND_FUNCTION:
+ case DECLARATION_KIND_TYPE:
+ case DECLARATION_KIND_ENUM_ENTRY:
+ return;
+
+ case DECLARATION_KIND_UNKNOWN:
+ panic("can't initialize unknwon declaration");
+ }
+ panic("invalid declaration kind");
+}
+
static void declaration_statement_to_firm(declaration_statement_t *statement)
{
declaration_t *declaration = statement->declarations_begin;
declaration_t *end = statement->declarations_end->next;
for( ; declaration != end; declaration = declaration->next) {
- if(declaration->namespc != NAMESPACE_NORMAL)
+ if (declaration->namespc != NAMESPACE_NORMAL)
continue;
- create_local_declaration(declaration);
+ initialize_local_declaration(declaration);
}
}
{
ir_node *cur_block = get_cur_block();
- ir_node *fallthrough_block = new_immBlock();
+ ir_node *fallthrough_block = NULL;
/* the true (blocks) */
- ir_node *true_block;
+ ir_node *true_block = NULL;
if (statement->true_statement != NULL) {
true_block = new_immBlock();
statement_to_firm(statement->true_statement);
- if(get_cur_block() != NULL) {
+ if (get_cur_block() != NULL) {
ir_node *jmp = new_Jmp();
+ if (fallthrough_block == NULL)
+ fallthrough_block = new_immBlock();
add_immBlock_pred(fallthrough_block, jmp);
}
- } else {
- true_block = fallthrough_block;
}
/* the false (blocks) */
- ir_node *false_block;
- if(statement->false_statement != NULL) {
+ ir_node *false_block = NULL;
+ if (statement->false_statement != NULL) {
false_block = new_immBlock();
statement_to_firm(statement->false_statement);
- if(get_cur_block() != NULL) {
+ if (get_cur_block() != NULL) {
ir_node *jmp = new_Jmp();
+ if (fallthrough_block == NULL)
+ fallthrough_block = new_immBlock();
add_immBlock_pred(fallthrough_block, jmp);
}
- } else {
- false_block = fallthrough_block;
}
/* create the condition */
- if(cur_block != NULL) {
+ if (cur_block != NULL) {
+ if (true_block == NULL || false_block == NULL) {
+ if (fallthrough_block == NULL)
+ fallthrough_block = new_immBlock();
+ if (true_block == NULL)
+ true_block = fallthrough_block;
+ if (false_block == NULL)
+ false_block = fallthrough_block;
+ }
+
set_cur_block(cur_block);
create_condition_evaluation(statement->condition, true_block,
false_block);
}
mature_immBlock(true_block);
- if(false_block != fallthrough_block) {
+ if (false_block != fallthrough_block) {
mature_immBlock(false_block);
}
- mature_immBlock(fallthrough_block);
+ if (fallthrough_block != NULL) {
+ mature_immBlock(fallthrough_block);
+ }
set_cur_block(fallthrough_block);
}
static void while_statement_to_firm(while_statement_t *statement)
{
ir_node *jmp = NULL;
- if(get_cur_block() != NULL) {
+ if (get_cur_block() != NULL) {
jmp = new_Jmp();
}
/* create the header block */
ir_node *header_block = new_immBlock();
- if(jmp != NULL) {
+ if (jmp != NULL) {
add_immBlock_pred(header_block, jmp);
}
- /* the false block */
- ir_node *false_block = new_immBlock();
-
/* the loop body */
- ir_node *body_block;
- if (statement->body != NULL) {
- ir_node *old_continue_label = continue_label;
- ir_node *old_break_label = break_label;
- continue_label = header_block;
- break_label = false_block;
+ ir_node *old_continue_label = continue_label;
+ ir_node *old_break_label = break_label;
+ continue_label = header_block;
+ break_label = NULL;
- body_block = new_immBlock();
- statement_to_firm(statement->body);
+ ir_node *body_block = new_immBlock();
+ statement_to_firm(statement->body);
+ ir_node *false_block = break_label;
- assert(continue_label == header_block);
- assert(break_label == false_block);
- continue_label = old_continue_label;
- break_label = old_break_label;
+ assert(continue_label == header_block);
+ continue_label = old_continue_label;
+ break_label = old_break_label;
- if(get_cur_block() != NULL) {
- jmp = new_Jmp();
- add_immBlock_pred(header_block, jmp);
- }
- } else {
- body_block = header_block;
+ if (get_cur_block() != NULL) {
+ jmp = new_Jmp();
+ add_immBlock_pred(header_block, jmp);
}
- /* create the condition */
- set_cur_block(header_block);
+ /* shortcut for while(true) */
+ if (is_constant_expression(statement->condition)
+ && fold_constant(statement->condition) != 0) {
+ set_cur_block(header_block);
+ ir_node *header_jmp = new_Jmp();
+ add_immBlock_pred(body_block, header_jmp);
+
+ keep_alive(body_block);
+ } else {
+ if (false_block == NULL) {
+ false_block = new_immBlock();
+ }
+
+ /* create the condition */
+ set_cur_block(header_block);
+
+ create_condition_evaluation(statement->condition, body_block,
+ false_block);
+ }
- create_condition_evaluation(statement->condition, body_block, false_block);
mature_immBlock(body_block);
- mature_immBlock(false_block);
mature_immBlock(header_block);
+ if (false_block != NULL) {
+ mature_immBlock(false_block);
+ }
set_cur_block(false_block);
}
static void do_while_statement_to_firm(do_while_statement_t *statement)
{
ir_node *jmp = NULL;
- if(get_cur_block() != NULL) {
+ if (get_cur_block() != NULL) {
jmp = new_Jmp();
}
/* create the header block */
ir_node *header_block = new_immBlock();
- /* the false block */
- ir_node *false_block = new_immBlock();
-
/* the loop body */
ir_node *body_block = new_immBlock();
- if(jmp != NULL) {
+ if (jmp != NULL) {
add_immBlock_pred(body_block, jmp);
}
+ ir_node *false_block = NULL;
+
if (statement->body != NULL) {
ir_node *old_continue_label = continue_label;
ir_node *old_break_label = break_label;
break_label = false_block;
statement_to_firm(statement->body);
+ false_block = break_label;
assert(continue_label == header_block);
- assert(break_label == false_block);
continue_label = old_continue_label;
break_label = old_break_label;
-
- if (get_cur_block() == NULL) {
- mature_immBlock(header_block);
- mature_immBlock(body_block);
- mature_immBlock(false_block);
- return;
- }
}
- ir_node *body_jmp = new_Jmp();
- add_immBlock_pred(header_block, body_jmp);
- mature_immBlock(header_block);
+ if (get_cur_block() != NULL) {
+ ir_node *body_jmp = new_Jmp();
+ add_immBlock_pred(header_block, body_jmp);
+ mature_immBlock(header_block);
+ }
/* create the condition */
set_cur_block(header_block);
create_condition_evaluation(statement->condition, body_block, false_block);
mature_immBlock(body_block);
- mature_immBlock(false_block);
mature_immBlock(header_block);
+ if (false_block != NULL) {
+ mature_immBlock(false_block);
+ }
set_cur_block(false_block);
}
static void for_statement_to_firm(for_statement_t *statement)
{
ir_node *jmp = NULL;
+
+ /* create declarations */
+ declaration_t *declaration = statement->scope.declarations;
+ for( ; declaration != NULL; declaration = declaration->next) {
+ create_local_declaration(declaration);
+ }
+ declaration = statement->scope.declarations;
+ for( ; declaration != NULL; declaration = declaration->next) {
+ initialize_local_declaration(declaration);
+ }
+
if (get_cur_block() != NULL) {
- if(statement->initialisation != NULL) {
+ if (statement->initialisation != NULL) {
expression_to_firm(statement->initialisation);
}
- /* create declarations */
- declaration_t *declaration = statement->scope.declarations;
- for( ; declaration != NULL; declaration = declaration->next) {
- create_local_declaration(declaration);
- }
-
jmp = new_Jmp();
}
static void create_jump_statement(const statement_t *statement,
ir_node *target_block)
{
- if(get_cur_block() == NULL)
+ if (get_cur_block() == NULL)
return;
dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
set_cur_block(NULL);
}
+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;
+}
+
static void switch_statement_to_firm(const switch_statement_t *statement)
{
dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
ir_node *expression = expression_to_firm(statement->expression);
ir_node *cond = new_d_Cond(dbgi, expression);
- ir_node *break_block = new_immBlock();
set_cur_block(NULL);
ir_node *const old_switch_cond = current_switch_cond;
ir_node *const old_break_label = break_label;
const bool old_saw_default_label = saw_default_label;
+ saw_default_label = false;
current_switch_cond = cond;
- break_label = break_block;
+ break_label = NULL;
if (statement->body != NULL) {
statement_to_firm(statement->body);
}
- if(get_cur_block() != NULL) {
+ if (get_cur_block() != NULL) {
ir_node *jmp = new_Jmp();
- add_immBlock_pred(break_block, jmp);
+ add_immBlock_pred(get_break_label(), jmp);
}
if (!saw_default_label) {
set_cur_block(get_nodes_block(cond));
ir_node *const proj = new_d_defaultProj(dbgi, cond,
MAGIC_DEFAULT_PN_NUMBER);
- add_immBlock_pred(break_block, proj);
+ add_immBlock_pred(get_break_label(), proj);
}
+ if (break_label != NULL) {
+ mature_immBlock(break_label);
+ }
+ set_cur_block(break_label);
+
assert(current_switch_cond == cond);
- assert(break_label == break_block);
current_switch_cond = old_switch_cond;
break_label = old_break_label;
saw_default_label = old_saw_default_label;
-
- mature_immBlock(break_block);
- set_cur_block(break_block);
}
static void case_label_to_firm(const case_label_statement_t *statement)
ir_node *block = new_immBlock();
set_cur_block(old_block);
- if(statement->expression != NULL) {
+ if (statement->expression != NULL) {
long start_pn = fold_constant(statement->expression);
long end_pn = start_pn;
if (statement->end_range != NULL) {
assert(start_pn <= end_pn);
/* create jumps for all cases in the given range */
for (long pn = start_pn; pn <= end_pn; ++pn) {
- if(pn == MAGIC_DEFAULT_PN_NUMBER) {
+ if (pn == MAGIC_DEFAULT_PN_NUMBER) {
/* oops someone detected our cheating... */
panic("magic default pn used");
}
mature_immBlock(block);
set_cur_block(block);
- if(statement->statement != NULL) {
+ if (statement->statement != NULL) {
statement_to_firm(statement->statement);
}
}
{
assert(label->namespc == NAMESPACE_LABEL);
- if(label->declaration_kind == DECLARATION_KIND_LABEL_BLOCK) {
+ if (label->declaration_kind == DECLARATION_KIND_LABEL_BLOCK) {
return label->v.block;
}
assert(label->declaration_kind == DECLARATION_KIND_UNKNOWN);
{
ir_node *block = get_label_block(statement->label);
- if(get_cur_block() != NULL) {
+ if (get_cur_block() != NULL) {
ir_node *jmp = new_Jmp();
add_immBlock_pred(block, jmp);
}
set_cur_block(block);
keep_alive(block);
- if(statement->statement != NULL) {
+ if (statement->statement != NULL) {
statement_to_firm(statement->statement);
}
}
static void goto_to_firm(const goto_statement_t *statement)
{
- if(get_cur_block() == NULL)
+ if (get_cur_block() == NULL)
return;
ir_node *block = get_label_block(statement->label);
size_t n_clobbers = 0;
asm_clobber_t *clobber = statement->clobbers;
for( ; clobber != NULL; clobber = clobber->next) {
- if(strcmp(clobber->clobber, "memory") == 0) {
+ if (strcmp(clobber->clobber, "memory") == 0) {
needs_memory = true;
continue;
}
}
assert(obstack_object_size(&asm_obst) == n_clobbers * sizeof(ident*));
ident **clobbers = NULL;
- if(n_clobbers > 0) {
+ if (n_clobbers > 0) {
clobbers = obstack_finish(&asm_obst);
}
obstack_1grow(&asm_obst, *c);
break;
case '=':
- if(modifiers & ASM_MODIFIER_READ_WRITE)
+ if (modifiers & ASM_MODIFIER_READ_WRITE)
panic("inconsistent register constraints");
modifiers |= ASM_MODIFIER_WRITE_ONLY;
break;
case '+':
- if(modifiers & ASM_MODIFIER_WRITE_ONLY)
+ if (modifiers & ASM_MODIFIER_WRITE_ONLY)
panic("inconsistent register constraints");
modifiers |= ASM_MODIFIER_READ_WRITE;
break;
const char *constraint_string = obstack_finish(&asm_obst);
needs_memory |= supports_memop;
- if(supports_memop) {
+ if (supports_memop) {
}
}
errorf(&statement->base.source_position, "__leave not supported yet");
}
+/**
+ * Transform a statement.
+ */
static void statement_to_firm(statement_t *statement)
{
+#ifndef NDEBUG
+ assert(!statement->base.transformed);
+ statement->base.transformed = true;
+#endif
+
switch(statement->kind) {
case STATEMENT_INVALID:
panic("invalid statement found");
declaration_statement_to_firm(&statement->declaration);
return;
case STATEMENT_BREAK:
- create_jump_statement(statement, break_label);
+ create_jump_statement(statement, get_break_label());
return;
case STATEMENT_CONTINUE:
create_jump_statement(statement, continue_label);
{
int count = 0;
for (; decl != end; decl = decl->next) {
- if(decl->namespc != NAMESPACE_NORMAL)
+ if (decl->namespc != NAMESPACE_NORMAL)
continue;
const type_t *type = skip_typeref(decl->type);
if (!decl->address_taken && is_type_scalar(type))
++count;
const initializer_t *initializer = decl->init.initializer;
/* FIXME: should walk initializer hierarchies... */
- if(initializer != NULL && initializer->kind == INITIALIZER_VALUE) {
+ if (initializer != NULL && initializer->kind == INITIALIZER_VALUE) {
count += count_decls_in_expression(initializer->value.value);
}
}
static int count_decls_in_expression(const expression_t *expression) {
int count = 0;
- if(expression == NULL)
+ if (expression == NULL)
return 0;
switch((expression_kind_t) expression->base.kind) {
case STATEMENT_LABEL: {
const label_statement_t *const label_stmt = &stmt->label;
- if(label_stmt->statement != NULL) {
+ if (label_stmt->statement != NULL) {
count += count_decls_in_stmts(label_stmt->statement);
}
break;
case STATEMENT_CASE_LABEL: {
const case_label_statement_t *label = &stmt->case_label;
count += count_decls_in_expression(label->expression);
- if(label->statement != NULL) {
+ if (label->statement != NULL) {
count += count_decls_in_stmts(label->statement);
}
break;
case STATEMENT_MS_TRY: {
const ms_try_statement_t *const try_stmt = &stmt->ms_try;
count += count_decls_in_stmts(try_stmt->try_statement);
- if(try_stmt->except_expression != NULL)
+ if (try_stmt->except_expression != NULL)
count += count_decls_in_expression(try_stmt->except_expression);
count += count_decls_in_stmts(try_stmt->final_statement);
break;
bool needs_entity = parameter->address_taken;
assert(!is_type_array(type));
- if(is_type_compound(type)) {
+ if (is_type_compound(type)) {
needs_entity = true;
}
- if(needs_entity) {
+ if (needs_entity) {
ir_entity *entity = get_method_value_param_ent(function_irtype, n);
ident *id = new_id_from_str(parameter->symbol->string);
set_entity_ident(entity, id);
continue;
}
+ ir_type *param_irtype = get_method_param_type(function_irtype, n);
+ ir_mode *param_mode = get_type_mode(param_irtype);
+
+ long pn = n;
+ ir_node *value = new_r_Proj(irg, start_block, args, param_mode, pn);
+
ir_mode *mode = get_ir_mode(parameter->type);
- long pn = n;
- ir_node *proj = new_r_Proj(irg, start_block, args, mode, pn);
+ value = create_conv(NULL, value, mode);
+ value = do_strict_conv(NULL, value);
parameter->declaration_kind = DECLARATION_KIND_LOCAL_VARIABLE;
parameter->v.value_number = next_value_number_function;
set_irg_loc_description(current_ir_graph, next_value_number_function, parameter);
++next_value_number_function;
- set_value(parameter->v.value_number, proj);
+ set_value(parameter->v.value_number, value);
}
}
}
}
+/**
+ * Create code for a function.
+ */
static void create_function(declaration_t *declaration)
{
ir_entity *function_entity = get_function_entity(declaration);
- if(declaration->init.statement == NULL)
+ if (declaration->init.statement == NULL)
return;
current_function_decl = declaration;
ir_node *end_block = get_irg_end_block(irg);
/* do we have a return statement yet? */
- if(get_cur_block() != NULL) {
+ if (get_cur_block() != NULL) {
type_t *type = skip_typeref(declaration->type);
assert(is_type_function(type));
const function_type_t *func_type = &type->function;
ret = new_Return(get_store(), 0, NULL);
} else {
ir_mode *mode;
- if(is_type_scalar(return_type)) {
+ if (is_type_scalar(return_type)) {
mode = get_ir_mode(func_type->return_type);
} else {
mode = mode_P_data;
in[0] = new_Const(mode, get_mode_null(mode));
} else {
in[0] = new_Unknown(mode);
+ if (warning.return_type) {
+ warningf(&declaration->source_position,
+ "missing return statement at end of non-void function '%Y'",
+ declaration->symbol);
+ }
}
ret = new_Return(get_store(), 1, in);
}
ir_type *entity_type = get_entity_type(entity);
int align = get_type_alignment_bytes(entity_type);
- if(align > align_all)
+ if (align > align_all)
align_all = align;
int misalign = 0;
- if(align > 0) {
+ if (align > 0) {
misalign = offset % align;
- if(misalign > 0) {
+ if (misalign > 0) {
offset += align - misalign;
}
}
/* first pass: create declarations */
declaration_t *declaration = scope->declarations;
for( ; declaration != NULL; declaration = declaration->next) {
- if(declaration->namespc != NAMESPACE_NORMAL)
+ if (declaration->namespc != NAMESPACE_NORMAL)
continue;
- if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY
+ if (declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY
|| declaration->storage_class == STORAGE_CLASS_TYPEDEF)
continue;
- if(declaration->symbol == NULL)
+ if (declaration->symbol == NULL)
continue;
type_t *type = skip_typeref(declaration->type);
- if(is_type_function(type)) {
+ if (is_type_function(type)) {
get_function_entity(declaration);
} else {
create_global_variable(declaration);
/* second pass: create code/initializers */
declaration = scope->declarations;
for( ; declaration != NULL; declaration = declaration->next) {
- if(declaration->namespc != NAMESPACE_NORMAL)
+ if (declaration->namespc != NAMESPACE_NORMAL)
continue;
- if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY
+ if (declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY
|| declaration->storage_class == STORAGE_CLASS_TYPEDEF)
continue;
- if(declaration->symbol == NULL)
+ if (declaration->symbol == NULL)
continue;
type_t *type = declaration->type;
- if(type->kind == TYPE_FUNCTION) {
+ if (type->kind == TYPE_FUNCTION) {
create_function(declaration);
} else {
assert(declaration->declaration_kind
/* OS option must be set to the backend */
const char *s = "ia32-gasmode=linux";
switch (firm_opt.os_support) {
- case OS_SUPPORT_WIN32:
+ case OS_SUPPORT_MINGW:
create_ld_ident = create_ld_ident_win32;
s = "ia32-gasmode=mingw";
break;
/* create idents for all known runtime functions */
for (size_t i = 0; i < sizeof(rts_data) / sizeof(rts_data[0]); ++i) {
- predef_idents[rts_data[i].id] = new_id_from_str(rts_data[i].name);
+ rts_idents[i] = new_id_from_str(rts_data[i].name);
}
+
+ entitymap_init(&entitymap);
}
static void init_ir_types(void)
{
static int ir_types_initialized = 0;
- if(ir_types_initialized)
+ if (ir_types_initialized)
return;
ir_types_initialized = 1;
void exit_ast2firm(void)
{
+ entitymap_destroy(&entitymap);
obstack_free(&asm_obst, NULL);
}
projects / cparser / blobdiff