/*
* This file is part of cparser.
- * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
+ * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#include "mangle.h"
#include "walk_statements.h"
#include "warning.h"
+#include "printer.h"
#include "entitymap_t.h"
#include "driver/firm_opt.h"
#include "driver/firm_cmdline.h"
+typedef struct trampoline_region trampoline_region;
+struct trampoline_region {
+ ir_entity *function; /**< The function that is called by this trampoline */
+ ir_entity *region; /**< created region for the trampoline */
+};
+
+static const backend_params *be_params;
+
+static ir_type *ir_type_char;
static ir_type *ir_type_const_char;
static ir_type *ir_type_wchar_t;
static ir_type *ir_type_void;
/* architecture specific floating point arithmetic mode (if any) */
static ir_mode *mode_float_arithmetic;
+/* alignment of stack parameters */
+static unsigned stack_param_align;
+
static int next_value_number_function;
static ir_node *continue_label;
static ir_node *break_label;
static entity_t **inner_functions;
static ir_node *ijmp_list;
static bool constant_folding;
+static bool initializer_use_bitfield_basetype;
extern bool have_const_functions;
static switch_statement_t *current_switch;
static ir_graph *current_function;
static translation_unit_t *current_translation_unit;
+static trampoline_region *current_trampolines;
+static ir_type *current_outer_frame;
+static ir_type *current_outer_value_type;
+static ir_node *current_static_link;
static entitymap_t entitymap;
static void enqueue_inner_function(entity_t *entity)
{
+ if (inner_functions == NULL)
+ inner_functions = NEW_ARR_F(entity_t *, 0);
ARR_APP1(entity_t*, inner_functions, entity);
}
-static entity_t *next_inner_function(void)
-{
- int len = ARR_LEN(inner_functions);
- if (len == 0)
- return NULL;
-
- entity_t *entity = inner_functions[len-1];
- ARR_SHRINKLEN(inner_functions, len-1);
-
- return entity;
-}
-
-ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos)
+static ir_node *uninitialized_local_var(ir_graph *irg, ir_mode *mode, int pos)
{
const entity_t *entity = get_irg_loc_description(irg, pos);
- if (entity != NULL) {
+ if (entity != NULL && warning.uninitialized) {
warningf(&entity->base.source_position,
"%s '%#T' might be used uninitialized",
get_entity_kind_name(entity->kind),
return new_r_Unknown(irg, mode);
}
-unsigned dbg_snprint(char *buf, unsigned len, const dbg_info *dbg)
-{
- const source_position_t *pos = (const source_position_t*) dbg;
- 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)
+static const char *dbg_retrieve(const dbg_info *dbg, unsigned *line)
{
const source_position_t *pos = (const source_position_t*) dbg;
if (pos == NULL)
return (dbg_info*) pos;
}
+static void dbg_print_type_dbg_info(char *buffer, size_t buffer_size,
+ const type_dbg_info *dbg)
+{
+ assert(dbg != NULL);
+ print_to_buffer(buffer, buffer_size);
+ const type_t *type = (const type_t*) dbg;
+ print_type(type);
+ finish_print_to_buffer();
+}
+
+static type_dbg_info *get_type_dbg_info_(const type_t *type)
+{
+ return (type_dbg_info*) type;
+}
+
static ir_mode *atomic_modes[ATOMIC_TYPE_LAST+1];
static ir_mode *mode_int, *mode_uint;
return atomic_modes[kind];
}
-static unsigned get_compound_type_size(compound_type_t *type)
-{
- ir_type *irtype = get_ir_type((type_t*) type);
- return get_type_size_bytes(irtype);
-}
-
-static unsigned get_array_type_size(array_type_t *type)
-{
- assert(!type->is_vla);
- ir_type *irtype = get_ir_type((type_t*) type);
- return get_type_size_bytes(irtype);
-}
-
-static unsigned get_type_size_const(type_t *type)
-{
- switch(type->kind) {
- case TYPE_ERROR:
- panic("error type occurred");
- case TYPE_ATOMIC:
- return get_atomic_type_size(type->atomic.akind);
- case TYPE_COMPLEX:
- return 2 * get_atomic_type_size(type->complex.akind);
- case TYPE_IMAGINARY:
- return get_atomic_type_size(type->imaginary.akind);
- case TYPE_ENUM:
- return get_atomic_type_size(type->enumt.akind);
- case TYPE_COMPOUND_UNION:
- case TYPE_COMPOUND_STRUCT:
- return get_compound_type_size(&type->compound);
- case TYPE_FUNCTION:
- /* just a pointer to the function */
- return get_mode_size_bytes(mode_P_code);
- case TYPE_POINTER:
- case TYPE_REFERENCE:
- return get_mode_size_bytes(mode_P_data);
- case TYPE_ARRAY:
- return get_array_type_size(&type->array);
- case TYPE_BUILTIN:
- return get_type_size_const(type->builtin.real_type);
- case TYPE_BITFIELD:
- panic("type size of bitfield request");
- case TYPE_TYPEDEF:
- case TYPE_TYPEOF:
- case TYPE_INVALID:
- break;
- }
- panic("Trying to determine size of invalid type");
-}
-
static ir_node *get_vla_size(array_type_t *const type)
{
ir_node *size_node = type->size_node;
return size_node;
}
-static ir_node *get_type_size(type_t *type)
+/**
+ * Return a node representing the size of a type.
+ */
+static ir_node *get_type_size_node(type_t *type)
{
type = skip_typeref(type);
if (is_type_array(type) && type->array.is_vla) {
ir_node *size_node = get_vla_size(&type->array);
- ir_node *elem_size = get_type_size(type->array.element_type);
+ ir_node *elem_size = get_type_size_node(type->array.element_type);
ir_mode *mode = get_irn_mode(size_node);
ir_node *real_size = new_d_Mul(NULL, size_node, elem_size, mode);
return real_size;
return count;
}
-static type_t *get_aligned_type(type_t *type, int alignment)
-{
- if (alignment == 0)
- return type;
-
- type = skip_typeref(type);
- if (alignment > type->base.alignment) {
- type_t *copy = duplicate_type(type);
- copy->base.alignment = alignment;
- type = identify_new_type(copy);
- }
- return type;
-}
-
/**
* Creates a Firm type for an atomic type
*/
-static ir_type *create_atomic_type(atomic_type_kind_t akind, int alignment)
+static ir_type *create_atomic_type(atomic_type_kind_t akind, const type_t *type)
{
- ir_mode *mode = atomic_modes[akind];
- ident *id = get_mode_ident(mode);
- ir_type *irtype = new_type_primitive(id, mode);
+ ir_mode *mode = atomic_modes[akind];
+ type_dbg_info *dbgi = get_type_dbg_info_(type);
+ ir_type *irtype = new_d_type_primitive(mode, dbgi);
+ il_alignment_t alignment = get_atomic_type_alignment(akind);
set_type_alignment_bytes(irtype, alignment);
/**
* Creates a Firm type for an imaginary type
*/
-static ir_type *create_imaginary_type(const imaginary_type_t *type)
+static ir_type *create_imaginary_type(imaginary_type_t *type)
{
- atomic_type_kind_t kind = type->akind;
- ir_mode *mode = atomic_modes[kind];
- ident *id = get_mode_ident(mode);
- ir_type *irtype = new_type_primitive(id, mode);
-
- set_type_alignment_bytes(irtype, type->base.alignment);
-
- return irtype;
+ return create_atomic_type(type->akind, (const type_t*) type);
}
/**
* return type of a parameter (and take transparent union gnu extension into
* account)
*/
-static type_t *get_parameter_type(type_t *type)
+static type_t *get_parameter_type(type_t *orig_type)
{
- type = skip_typeref(type);
- if (type->base.modifiers & TYPE_MODIFIER_TRANSPARENT_UNION) {
+ type_t *type = skip_typeref(orig_type);
+ if (is_type_union(type)
+ && get_type_modifiers(orig_type) & DM_TRANSPARENT_UNION) {
compound_t *compound = type->compound.compound;
type = compound->members.entities->declaration.type;
}
return type;
}
-static ir_type *create_method_type(const function_type_t *function_type)
+static ir_type *create_method_type(const function_type_t *function_type, bool for_closure)
{
- type_t *return_type = skip_typeref(function_type->return_type);
+ type_t *return_type = skip_typeref(function_type->return_type);
- ident *id = id_unique("functiontype.%u");
- int n_parameters = count_parameters(function_type);
- int n_results = return_type == type_void ? 0 : 1;
- ir_type *irtype = new_type_method(id, n_parameters, n_results);
+ int n_parameters = count_parameters(function_type)
+ + (for_closure ? 1 : 0);
+ int n_results = return_type == type_void ? 0 : 1;
+ type_dbg_info *dbgi = get_type_dbg_info_((const type_t*) function_type);
+ ir_type *irtype = new_d_type_method(n_parameters, n_results, dbgi);
if (return_type != type_void) {
ir_type *restype = get_ir_type(return_type);
function_parameter_t *parameter = function_type->parameters;
int n = 0;
+ if (for_closure) {
+ ir_type *p_irtype = get_ir_type(type_void_ptr);
+ set_method_param_type(irtype, n, p_irtype);
+ ++n;
+ }
for ( ; parameter != NULL; parameter = parameter->next) {
type_t *type = get_parameter_type(parameter->type);
ir_type *p_irtype = get_ir_type(type);
++n;
}
- if (function_type->variadic || function_type->unspecified_parameters) {
+ bool is_variadic = function_type->variadic;
+
+ if (is_variadic)
set_method_variadicity(irtype, variadicity_variadic);
- }
unsigned cc = get_method_calling_convention(irtype);
switch (function_type->calling_convention) {
break;
case CC_STDCALL:
- if (function_type->variadic || function_type->unspecified_parameters)
+ if (is_variadic)
goto is_cdecl;
/* only non-variadic function can use stdcall, else use cdecl */
break;
case CC_FASTCALL:
- if (function_type->variadic || function_type->unspecified_parameters)
+ if (is_variadic)
goto is_cdecl;
/* only non-variadic function can use fastcall, else use cdecl */
set_method_calling_convention(irtype, SET_FASTCALL(cc));
break;
}
+ if (for_closure)
+ set_method_calling_convention(irtype, get_method_calling_convention(irtype) | cc_this_call);
+
return irtype;
}
static ir_type *create_pointer_type(pointer_type_t *type)
{
- type_t *points_to = type->points_to;
- ir_type *ir_points_to = get_ir_type_incomplete(points_to);
- ir_type *ir_type = new_type_pointer(id_unique("pointer.%u"),
- ir_points_to, mode_P_data);
+ type_dbg_info *dbgi = get_type_dbg_info_((const type_t*) type);
+ type_t *points_to = type->points_to;
+ ir_type *ir_points_to = get_ir_type_incomplete(points_to);
+ ir_type *ir_type = new_d_type_pointer(ir_points_to, dbgi);
return ir_type;
}
static ir_type *create_reference_type(reference_type_t *type)
{
- type_t *refers_to = type->refers_to;
- ir_type *ir_refers_to = get_ir_type_incomplete(refers_to);
- ir_type *ir_type = new_type_pointer(id_unique("reference.%u"),
- ir_refers_to, mode_P_data);
+ type_dbg_info *dbgi = get_type_dbg_info_((const type_t*) type);
+ type_t *refers_to = type->refers_to;
+ ir_type *ir_refers_to = get_ir_type_incomplete(refers_to);
+ ir_type *ir_type = new_d_type_pointer(ir_refers_to, dbgi);
return ir_type;
}
static ir_type *create_array_type(array_type_t *type)
{
- type_t *element_type = type->element_type;
- ir_type *ir_element_type = get_ir_type(element_type);
-
- ident *id = id_unique("array.%u");
- ir_type *ir_type = new_type_array(id, 1, ir_element_type);
+ type_dbg_info *dbgi = get_type_dbg_info_((const type_t*) type);
+ type_t *element_type = type->element_type;
+ ir_type *ir_element_type = get_ir_type(element_type);
+ ir_type *ir_type = new_d_type_array(1, ir_element_type, dbgi);
const int align = get_type_alignment_bytes(ir_element_type);
set_type_alignment_bytes(ir_type, align);
* @param size the size
*/
static ir_type *get_signed_int_type_for_bit_size(ir_type *base_tp,
- unsigned size)
+ unsigned size,
+ const type_t *type)
{
static ir_mode *s_modes[64 + 1] = {NULL, };
ir_type *res;
s_modes[size] = mode;
}
- char name[32];
- snprintf(name, sizeof(name), "I%u", size);
- ident *id = new_id_from_str(name);
- dbg_info *dbgi = get_dbg_info(&builtin_source_position);
- res = new_d_type_primitive(id_mangle_u(get_type_ident(base_tp), id), mode, dbgi);
+ type_dbg_info *dbgi = get_type_dbg_info_(type);
+ res = new_d_type_primitive(mode, dbgi);
set_primitive_base_type(res, base_tp);
return res;
* @param size the size
*/
static ir_type *get_unsigned_int_type_for_bit_size(ir_type *base_tp,
- unsigned size)
+ unsigned size,
+ const type_t *type)
{
static ir_mode *u_modes[64 + 1] = {NULL, };
ir_type *res;
u_modes[size] = mode;
}
- char name[32];
-
- snprintf(name, sizeof(name), "U%u", size);
- ident *id = new_id_from_str(name);
- dbg_info *dbgi = get_dbg_info(&builtin_source_position);
- res = new_d_type_primitive(id_mangle_u(get_type_ident(base_tp), id), mode, dbgi);
+ type_dbg_info *dbgi = get_type_dbg_info_(type);
+ res = new_d_type_primitive(mode, dbgi);
set_primitive_base_type(res, base_tp);
return res;
assert(!is_type_float(base));
if (is_type_signed(base)) {
- return get_signed_int_type_for_bit_size(irbase, size);
+ return get_signed_int_type_for_bit_size(irbase, size,
+ (const type_t*) type);
} else {
- return get_unsigned_int_type_for_bit_size(irbase, size);
+ return get_unsigned_int_type_for_bit_size(irbase, size,
+ (const type_t*) type);
}
}
/**
* 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
- * the anonymous inner struct inside the resulting firm struct)
*/
-static ir_type *create_compound_type(compound_type_t *type, ir_type *irtype,
- size_t *outer_offset, size_t *outer_align,
+static ir_type *create_compound_type(compound_type_t *type,
bool incomplete, bool is_union)
{
compound_t *compound = type->compound;
return compound->irtype;
}
- size_t align_all = 1;
- size_t offset = 0;
- size_t bit_offset = 0;
- size_t size = 0;
-
- if (irtype == NULL) {
- symbol_t *symbol = compound->base.symbol;
- ident *id;
- if (symbol != NULL) {
- id = new_id_from_str(symbol->string);
- } else {
- if (is_union) {
- id = id_unique("__anonymous_union.%u");
- } else {
- id = id_unique("__anonymous_struct.%u");
- }
- }
- dbg_info *dbgi = get_dbg_info(&compound->base.source_position);
-
+ symbol_t *symbol = compound->base.symbol;
+ ident *id;
+ if (symbol != NULL) {
+ id = new_id_from_str(symbol->string);
+ } else {
if (is_union) {
- irtype = new_d_type_union(id, dbgi);
+ id = id_unique("__anonymous_union.%u");
} else {
- irtype = new_d_type_struct(id, dbgi);
+ id = id_unique("__anonymous_struct.%u");
}
+ }
- compound->irtype_complete = false;
- compound->irtype = irtype;
+ ir_type *irtype;
+ if (is_union) {
+ irtype = new_type_union(id);
} else {
- offset = *outer_offset;
- align_all = *outer_align;
+ irtype = new_type_struct(id);
}
+ compound->irtype_complete = false;
+ compound->irtype = irtype;
+
if (incomplete)
return irtype;
+ if (is_union) {
+ layout_union_type(type);
+ } else {
+ layout_struct_type(type);
+ }
+
compound->irtype_complete = true;
entity_t *entry = compound->members.entities;
if (entry->kind != ENTITY_COMPOUND_MEMBER)
continue;
- size_t prev_offset = offset;
-
symbol_t *symbol = entry->base.symbol;
- type_t *entry_type = skip_typeref(entry->declaration.type);
- entry_type
- = get_aligned_type(entry_type, entry->compound_member.alignment);
- dbg_info *dbgi = get_dbg_info(&entry->base.source_position);
-
+ type_t *entry_type = entry->declaration.type;
ident *ident;
- if (symbol != NULL) {
- ident = new_id_from_str(symbol->string);
- } else {
- 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) {
- create_compound_type(&entry_type->compound, irtype, &offset,
- &align_all, false, COMPOUND_IS_UNION);
- goto finished_member;
- } else {
- assert(entry_type->kind == TYPE_BITFIELD);
- }
+ if (symbol == NULL) {
+ /* anonymous bitfield member, skip */
+ if (entry_type->kind == TYPE_BITFIELD)
+ continue;
+ assert(entry_type->kind == TYPE_COMPOUND_STRUCT
+ || entry_type->kind == TYPE_COMPOUND_UNION);
ident = id_unique("anon.%u");
- }
-
- ir_type *base_irtype;
- if (entry_type->kind == TYPE_BITFIELD) {
- base_irtype = get_ir_type(entry_type->bitfield.base_type);
} else {
- base_irtype = get_ir_type(entry_type);
+ ident = new_id_from_str(symbol->string);
}
- size_t entry_alignment = get_type_alignment_bytes(base_irtype);
- size_t misalign = offset % entry_alignment;
+ dbg_info *dbgi = get_dbg_info(&entry->base.source_position);
ir_type *entry_irtype = get_ir_type(entry_type);
ir_entity *entity = new_d_entity(irtype, ident, entry_irtype, dbgi);
- size_t base;
- size_t bits_remainder;
- if (entry_type->kind == TYPE_BITFIELD) {
- size_t size_bits = entry_type->bitfield.bit_size;
- size_t rest_size_bits = (entry_alignment - misalign)*8 - bit_offset;
-
- if (size_bits > rest_size_bits) {
- /* start a new bucket */
- offset += entry_alignment - misalign;
- bit_offset = 0;
-
- base = offset;
- bits_remainder = 0;
- } else {
- /* put into current bucket */
- base = offset - misalign;
- bits_remainder = misalign * 8 + bit_offset;
- }
-
- offset += size_bits / 8;
- bit_offset = bit_offset + (size_bits % 8);
- } else {
- size_t entry_size = get_type_size_bytes(base_irtype);
- if (misalign > 0 || bit_offset > 0)
- offset += entry_alignment - misalign;
-
- base = offset;
- bits_remainder = 0;
- offset += entry_size;
- bit_offset = 0;
- }
-
- if (entry_alignment > align_all) {
- if (entry_alignment % align_all != 0) {
- panic("uneven alignments not supported yet");
- }
- align_all = entry_alignment;
- }
-
- set_entity_offset(entity, base);
+ set_entity_offset(entity, entry->compound_member.offset);
set_entity_offset_bits_remainder(entity,
- (unsigned char) bits_remainder);
- //add_struct_member(irtype, entity);
- entry->declaration.kind = DECLARATION_KIND_COMPOUND_MEMBER;
- assert(entry->compound_member.entity == NULL);
- entry->compound_member.entity = entity;
-
-finished_member:
- if (is_union) {
- size_t entry_size = offset - prev_offset;
- if (entry_size > size) {
- size = entry_size;
- }
- offset = 0;
- bit_offset = 0;
- }
- }
+ entry->compound_member.bit_offset);
- if (!is_union) {
- size = offset;
- }
-
- size_t misalign = offset % align_all;
- if (misalign > 0 || bit_offset > 0) {
- size += align_all - misalign;
+ assert(entry->declaration.kind == DECLARATION_KIND_UNKNOWN);
+ entry->declaration.kind = DECLARATION_KIND_COMPOUND_MEMBER;
+ entry->compound_member.entity = entity;
}
- if (outer_offset != NULL) {
- if (!is_union) {
- *outer_offset = offset;
- } else {
- *outer_offset += size;
- }
-
- if (align_all > *outer_align) {
- if (align_all % *outer_align != 0) {
- panic("uneven alignments not supported yet");
- }
- *outer_align = align_all;
- }
- } else {
- set_type_alignment_bytes(irtype, align_all);
- set_type_size_bytes(irtype, size);
- set_type_state(irtype, layout_fixed);
- }
+ set_type_alignment_bytes(irtype, compound->alignment);
+ set_type_size_bytes(irtype, compound->size);
+ set_type_state(irtype, layout_fixed);
return irtype;
}
{
type->base.firm_type = ir_type_int;
- ir_mode *const mode = mode_int;
- tarval *const one = get_mode_one(mode);
- tarval * tv_next = get_tarval_null(mode);
+ ir_mode *const mode = mode_int;
+ ir_tarval *const one = get_mode_one(mode);
+ ir_tarval * tv_next = get_mode_null(mode);
bool constant_folding_old = constant_folding;
constant_folding = true;
constant_folding = constant_folding_old;
- return create_atomic_type(type->akind, type->base.alignment);
+ return create_atomic_type(type->akind, (const type_t*) type);
}
static ir_type *get_ir_type_incomplete(type_t *type)
switch (type->kind) {
case TYPE_COMPOUND_STRUCT:
- return create_compound_type(&type->compound, NULL, NULL, NULL,
- true, COMPOUND_IS_STRUCT);
+ return create_compound_type(&type->compound, true, COMPOUND_IS_STRUCT);
case TYPE_COMPOUND_UNION:
- return create_compound_type(&type->compound, NULL, NULL, NULL,
- true, COMPOUND_IS_UNION);
+ return create_compound_type(&type->compound, true, COMPOUND_IS_UNION);
default:
return get_ir_type(type);
}
switch (type->kind) {
case TYPE_ERROR:
/* Happens while constant folding, when there was an error */
- return create_atomic_type(ATOMIC_TYPE_VOID, 0);
+ return create_atomic_type(ATOMIC_TYPE_VOID, NULL);
case TYPE_ATOMIC:
- firm_type = create_atomic_type(type->atomic.akind,
- type->base.alignment);
+ firm_type = create_atomic_type(type->atomic.akind, type);
break;
case TYPE_COMPLEX:
firm_type = create_complex_type(&type->complex);
firm_type = create_imaginary_type(&type->imaginary);
break;
case TYPE_FUNCTION:
- firm_type = create_method_type(&type->function);
+ firm_type = create_method_type(&type->function, false);
break;
case TYPE_POINTER:
firm_type = create_pointer_type(&type->pointer);
firm_type = create_array_type(&type->array);
break;
case TYPE_COMPOUND_STRUCT:
- firm_type = create_compound_type(&type->compound, NULL, NULL, NULL,
- false, COMPOUND_IS_STRUCT);
+ firm_type = create_compound_type(&type->compound, false, COMPOUND_IS_STRUCT);
break;
case TYPE_COMPOUND_UNION:
- firm_type = create_compound_type(&type->compound, NULL, NULL, NULL,
- false, COMPOUND_IS_UNION);
+ firm_type = create_compound_type(&type->compound, false, COMPOUND_IS_UNION);
break;
case TYPE_ENUM:
firm_type = create_enum_type(&type->enumt);
{ rts_coshl, 1, "coshl", 1, _C99 },
{ rts_tanhl, 1, "tanhl", 1, _C99 },
- { rts_memcpy, 1, "memcpy", 3, _C89 }, /* HMM, man say its C99 */
- { rts_memset, 1, "memset", 3, _C89 }, /* HMM, man say its C99 */
{ rts_strcmp, 1, "strcmp", 2, _C89 },
- { rts_strncmp, 1, "strncmp", 3, _C89 }
+ { rts_strncmp, 1, "strncmp", 3, _C89 },
+ { rts_strcpy, 1, "strcpy", 2, _C89 },
+ { rts_strlen, 1, "strlen", 1, _C89 },
+ { rts_memcpy, 1, "memcpy", 3, _C89 },
+ { rts_mempcpy, 1, "mempcpy", 3, _GNUC },
+ { rts_memmove, 1, "memmove", 3, _C89 },
+ { rts_memset, 1, "memset", 3, _C89 },
+ { rts_memcmp, 1, "memcmp", 3, _C89 },
};
static ident *rts_idents[lengthof(rts_data)];
-static ident* (*create_ld_ident)(entity_t*) = create_name_linux_elf;
+static create_ld_ident_func create_ld_ident = create_name_linux_elf;
+
+void set_create_ld_ident(ident *(*func)(entity_t*))
+{
+ create_ld_ident = func;
+}
/**
* Handle GNU attributes for entities
* @param ent the entity
* @param decl the routine declaration
*/
-static void handle_gnu_attributes_ent(ir_entity *irentity, entity_t *entity)
+static void handle_decl_modifiers(ir_entity *irentity, entity_t *entity)
{
assert(is_declaration(entity));
decl_modifiers_t modifiers = entity->declaration.modifiers;
- if (modifiers & DM_PURE) {
- /* TRUE if the declaration includes the GNU
- __attribute__((pure)) specifier. */
- set_entity_additional_property(irentity, mtp_property_pure);
- }
- if (modifiers & DM_CONST) {
- set_entity_additional_property(irentity, mtp_property_const);
- have_const_functions = true;
+
+ if (is_method_entity(irentity)) {
+ if (modifiers & DM_PURE) {
+ set_entity_additional_properties(irentity, mtp_property_pure);
+ }
+ if (modifiers & DM_CONST) {
+ add_entity_additional_properties(irentity, mtp_property_const);
+ have_const_functions = true;
+ }
}
if (modifiers & DM_USED) {
- /* TRUE if the declaration includes the GNU
- __attribute__((used)) specifier. */
- set_entity_stickyness(irentity, stickyness_sticky);
+ add_entity_linkage(irentity, IR_LINKAGE_HIDDEN_USER);
+ }
+ if (modifiers & DM_WEAK) {
+ add_entity_linkage(irentity, IR_LINKAGE_WEAK);
}
}
/**
* Creates an entity representing a function.
*
- * @param declaration the function declaration
+ * @param entity the function declaration/definition
+ * @param owner_type the owner type of this function, NULL
+ * for global functions
*/
-static ir_entity *get_function_entity(entity_t *entity)
+static ir_entity *get_function_entity(entity_t *entity, ir_type *owner_type)
{
assert(entity->kind == ENTITY_FUNCTION);
- if (entity->function.entity != NULL) {
- return entity->function.entity;
+ if (entity->function.irentity != NULL) {
+ return entity->function.irentity;
+ }
+
+ entity_t *original_entity = entity;
+ if (entity->function.btk != bk_none) {
+ entity = get_builtin_replacement(entity);
+ if (entity == NULL)
+ return NULL;
}
if (is_main(entity)) {
symbol_t *symbol = entity->base.symbol;
ident *id = new_id_from_str(symbol->string);
- ir_type *global_type = get_glob_type();
- ir_type *ir_type_method = get_ir_type(entity->declaration.type);
- bool const has_body = entity->function.statement != NULL;
-
/* already an entity defined? */
ir_entity *irentity = entitymap_get(&entitymap, symbol);
+ bool const has_body = entity->function.statement != NULL;
if (irentity != NULL) {
- if (get_entity_visibility(irentity) == visibility_external_allocated
+ if (get_entity_visibility(irentity) == ir_visibility_external
&& has_body) {
- set_entity_visibility(irentity, visibility_external_visible);
+ set_entity_visibility(irentity, ir_visibility_default);
}
goto entity_created;
}
+ ir_type *ir_type_method;
+ if (entity->function.need_closure)
+ ir_type_method = create_method_type(&entity->declaration.type->function, true);
+ else
+ ir_type_method = get_ir_type(entity->declaration.type);
+
+ bool nested_function = false;
+ if (owner_type == NULL)
+ owner_type = get_glob_type();
+ else
+ nested_function = true;
+
dbg_info *const dbgi = get_dbg_info(&entity->base.source_position);
- irentity = new_d_entity(global_type, id, ir_type_method, dbgi);
- set_entity_ld_ident(irentity, create_ld_ident(entity));
-
- handle_gnu_attributes_ent(irentity, entity);
-
- /* static inline => local
- * extern inline => local
- * inline without definition => local
- * inline with definition => external_visible */
- storage_class_tag_t const storage_class
- = (storage_class_tag_t) entity->declaration.storage_class;
- bool const is_inline = entity->function.is_inline;
- if (is_inline && storage_class == STORAGE_CLASS_NONE && has_body) {
- set_entity_visibility(irentity, visibility_external_visible);
- } else if (storage_class == STORAGE_CLASS_STATIC ||
- (is_inline && has_body)) {
- if (!has_body) {
- /* this entity was declared, but is defined nowhere */
- set_entity_peculiarity(irentity, peculiarity_description);
+ irentity = new_d_entity(owner_type, id, ir_type_method, dbgi);
+
+ ident *ld_id;
+ if (nested_function)
+ ld_id = id_unique("inner.%u");
+ else
+ ld_id = create_ld_ident(entity);
+ set_entity_ld_ident(irentity, ld_id);
+
+ handle_decl_modifiers(irentity, entity);
+
+ if (! nested_function) {
+ /* static inline => local
+ * extern inline => local
+ * inline without definition => local
+ * inline with definition => external_visible */
+ storage_class_tag_t const storage_class
+ = (storage_class_tag_t) entity->declaration.storage_class;
+ bool const is_inline = entity->function.is_inline;
+
+ if (is_inline && storage_class == STORAGE_CLASS_NONE && has_body) {
+ set_entity_visibility(irentity, ir_visibility_default);
+ } else if (storage_class == STORAGE_CLASS_STATIC ||
+ (is_inline && has_body)) {
+ set_entity_visibility(irentity, ir_visibility_local);
+ } else if (has_body) {
+ set_entity_visibility(irentity, ir_visibility_default);
+ } else {
+ set_entity_visibility(irentity, ir_visibility_external);
}
- set_entity_visibility(irentity, visibility_local);
- } else if (has_body) {
- set_entity_visibility(irentity, visibility_external_visible);
} else {
- set_entity_visibility(irentity, visibility_external_allocated);
+ /* nested functions are always local */
+ set_entity_visibility(irentity, ir_visibility_local);
}
- set_entity_allocation(irentity, allocation_static);
/* We should check for file scope here, but as long as we compile C only
this is not needed. */
- if (! firm_opt.freestanding) {
+ if (!freestanding && !has_body) {
/* check for a known runtime function */
for (size_t i = 0; i < lengthof(rts_data); ++i) {
if (id != rts_idents[i])
continue;
+ function_type_t *function_type
+ = &entity->declaration.type->function;
+ /* rts_entities code can't handle a "wrong" number of parameters */
+ if (function_type->unspecified_parameters)
+ continue;
+
+ /* check number of parameters */
+ int n_params = count_parameters(function_type);
+ if (n_params != rts_data[i].n_params)
+ continue;
+
+ type_t *return_type = skip_typeref(function_type->return_type);
+ int n_res = return_type != type_void ? 1 : 0;
+ if (n_res != rts_data[i].n_res)
+ continue;
+
/* ignore those rts functions not necessary needed for current mode */
if ((c_mode & rts_data[i].flags) == 0)
continue;
entitymap_insert(&entitymap, symbol, irentity);
entity_created:
- entity->declaration.kind = DECLARATION_KIND_FUNCTION;
- entity->function.entity = irentity;
+ original_entity->declaration.kind = DECLARATION_KIND_FUNCTION;
+ original_entity->function.irentity = irentity;
return irentity;
}
+/**
+ * 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)
+{
+ assert(entity != NULL);
+ union symconst_symbol sym;
+ sym.entity_p = entity;
+ return new_d_SymConst(dbgi, mode, sym, symconst_addr_ent);
+}
+
static ir_node *create_conv(dbg_info *dbgi, ir_node *value, ir_mode *dest_mode)
{
ir_mode *value_mode = get_irn_mode(value);
if (dest_mode == mode_b) {
ir_node *zero = new_Const(get_mode_null(value_mode));
- ir_node *cmp = new_d_Cmp(dbgi, value, zero);
- ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pn_Cmp_Lg);
- return proj;
+ ir_node *cmp = new_d_Cmp(dbgi, value, zero, ir_relation_less_greater);
+ return cmp;
}
return new_d_Conv(dbgi, value, dest_mode);
}
-/**
- * Creates a Const node representing a constant.
- */
-static ir_node *const_to_firm(const const_expression_t *cnst)
+static ir_node *create_Const_from_bool(ir_mode *const mode, bool const v)
{
- dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
- type_t *type = skip_typeref(cnst->base.type);
- ir_mode *mode = get_ir_mode_storage(type);
-
- char buf[128];
- tarval *tv;
- size_t len;
- if (mode_is_float(mode)) {
- tv = new_tarval_from_double(cnst->v.float_value, mode);
- } else {
- if (mode_is_signed(mode)) {
- len = snprintf(buf, sizeof(buf), "%lld", cnst->v.int_value);
- } else {
- len = snprintf(buf, sizeof(buf), "%llu",
- (unsigned long long) cnst->v.int_value);
- }
- tv = new_tarval_from_str(buf, len, mode);
- }
-
- ir_node *res = new_d_Const(dbgi, tv);
- ir_mode *mode_arith = get_ir_mode_arithmetic(type);
- return create_conv(dbgi, res, mode_arith);
+ return new_Const((v ? get_mode_one : get_mode_null)(mode));
}
/**
- * Creates a Const node representing a character constant.
+ * Creates a SymConst node representing a wide string literal.
+ *
+ * @param literal the wide string literal
*/
-static ir_node *character_constant_to_firm(const const_expression_t *cnst)
+static ir_node *wide_string_literal_to_firm(
+ const string_literal_expression_t *literal)
{
- dbg_info *dbgi = get_dbg_info(&cnst->base.source_position);
- ir_mode *mode = get_ir_mode_arithmetic(cnst->base.type);
-
- long long int v;
- size_t const size = cnst->v.character.size;
- if (size == 1 && char_is_signed) {
- v = (signed char)cnst->v.character.begin[0];
- } else {
- v = 0;
- for (size_t i = 0; i < size; ++i) {
- v = (v << 8) | ((unsigned char)cnst->v.character.begin[i]);
- }
- }
- char buf[128];
- size_t len = snprintf(buf, sizeof(buf), "%lld", v);
- tarval *tv = new_tarval_from_str(buf, len, mode);
-
- return new_d_Const(dbgi, tv);
-}
+ ir_type *const global_type = get_glob_type();
+ ir_type *const elem_type = ir_type_wchar_t;
+ dbg_info *const dbgi = get_dbg_info(&literal->base.source_position);
+ ir_type *const type = new_type_array(1, elem_type);
-/**
- * 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);
- ir_mode *mode = get_ir_mode_arithmetic(cnst->base.type);
+ ident *const id = id_unique("str.%u");
+ ir_entity *const entity = new_d_entity(global_type, id, type, dbgi);
+ set_entity_ld_ident(entity, id);
+ set_entity_visibility(entity, ir_visibility_private);
+ add_entity_linkage(entity, IR_LINKAGE_CONSTANT);
- long long int v = cnst->v.wide_character.begin[0];
+ ir_mode *const mode = get_type_mode(elem_type);
+ const size_t slen = wstrlen(&literal->value);
- char buf[128];
- size_t len = snprintf(buf, sizeof(buf), "%lld", v);
- tarval *tv = new_tarval_from_str(buf, len, mode);
+ set_array_lower_bound_int(type, 0, 0);
+ set_array_upper_bound_int(type, 0, slen);
+ set_type_size_bytes(type, slen * get_mode_size_bytes(mode));
+ set_type_state(type, layout_fixed);
- return new_d_Const(dbgi, tv);
-}
+ ir_initializer_t *initializer = create_initializer_compound(slen);
+ const char *p = literal->value.begin;
+ for (size_t i = 0; i < slen; ++i) {
+ assert(p < literal->value.begin + literal->value.size);
+ utf32 v = read_utf8_char(&p);
+ ir_tarval *tv = new_tarval_from_long(v, mode);
+ ir_initializer_t *val = create_initializer_tarval(tv);
+ set_initializer_compound_value(initializer, i, val);
+ }
+ set_entity_initializer(entity, initializer);
-/**
- * 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)
-{
- assert(entity != NULL);
- union symconst_symbol sym;
- sym.entity_p = entity;
- return new_d_SymConst(dbgi, mode, sym, symconst_addr_ent);
+ return create_symconst(dbgi, mode_P_data, entity);
}
/**
{
ir_type *const global_type = get_glob_type();
dbg_info *const dbgi = get_dbg_info(src_pos);
- ir_type *const type = new_d_type_array(id_unique("strtype.%u"), 1,
- ir_type_const_char, dbgi);
+ ir_type *const type = new_type_array(1, ir_type_const_char);
ident *const id = id_unique(id_prefix);
ir_entity *const entity = new_d_entity(global_type, id, type, dbgi);
set_entity_ld_ident(entity, id);
- set_entity_variability(entity, variability_constant);
- set_entity_allocation(entity, allocation_static);
+ set_entity_visibility(entity, ir_visibility_private);
+ add_entity_linkage(entity, IR_LINKAGE_CONSTANT);
ir_type *const elem_type = ir_type_const_char;
ir_mode *const mode = get_type_mode(elem_type);
set_type_size_bytes(type, slen);
set_type_state(type, layout_fixed);
- tarval **const tvs = xmalloc(slen * sizeof(tvs[0]));
+ ir_initializer_t *initializer = create_initializer_compound(slen);
for (size_t i = 0; i < slen; ++i) {
- tvs[i] = new_tarval_from_long(string[i], mode);
+ ir_tarval *tv = new_tarval_from_long(string[i], mode);
+ ir_initializer_t *val = create_initializer_tarval(tv);
+ set_initializer_compound_value(initializer, i, val);
}
-
- set_array_entity_values(entity, tvs, slen);
- free(tvs);
+ set_entity_initializer(entity, initializer);
return create_symconst(dbgi, mode_P_data, entity);
}
+static bool try_create_integer(literal_expression_t *literal,
+ type_t *type, unsigned char base)
+{
+ const char *string = literal->value.begin;
+ size_t size = literal->value.size;
+
+ assert(type->kind == TYPE_ATOMIC);
+ atomic_type_kind_t akind = type->atomic.akind;
+
+ ir_mode *mode = atomic_modes[akind];
+ ir_tarval *tv = new_integer_tarval_from_str(string, size, 1, base, mode);
+ if (tv == tarval_bad)
+ return false;
+
+ literal->base.type = type;
+ literal->target_value = tv;
+ return true;
+}
+
+static void create_integer_tarval(literal_expression_t *literal)
+{
+ unsigned us = 0;
+ unsigned ls = 0;
+ symbol_t *suffix = literal->suffix;
+ /* parse suffix */
+ if (suffix != NULL) {
+ for (const char *c = suffix->string; *c != '\0'; ++c) {
+ if (*c == 'u' || *c == 'U') { ++us; }
+ if (*c == 'l' || *c == 'L') { ++ls; }
+ }
+ }
+
+ unsigned base;
+ switch (literal->base.kind) {
+ case EXPR_LITERAL_INTEGER_OCTAL: base = 8; break;
+ case EXPR_LITERAL_INTEGER: base = 10; break;
+ case EXPR_LITERAL_INTEGER_HEXADECIMAL: base = 16; break;
+ default: panic("invalid literal kind");
+ }
+
+ tarval_int_overflow_mode_t old_mode = tarval_get_integer_overflow_mode();
+
+ /* now try if the constant is small enough for some types */
+ tarval_set_integer_overflow_mode(TV_OVERFLOW_BAD);
+ if (ls < 1) {
+ if (us == 0 && try_create_integer(literal, type_int, base))
+ goto finished;
+ if ((us == 1 || base != 10)
+ && try_create_integer(literal, type_unsigned_int, base))
+ goto finished;
+ }
+ if (ls < 2) {
+ if (us == 0 && try_create_integer(literal, type_long, base))
+ goto finished;
+ if ((us == 1 || base != 10)
+ && try_create_integer(literal, type_unsigned_long, base))
+ goto finished;
+ }
+ /* last try? then we should not report tarval_bad */
+ if (us != 1 && base == 10)
+ tarval_set_integer_overflow_mode(TV_OVERFLOW_WRAP);
+ if (us == 0 && try_create_integer(literal, type_long_long, base))
+ goto finished;
+
+ /* last try */
+ assert(us == 1 || base != 10);
+ tarval_set_integer_overflow_mode(TV_OVERFLOW_WRAP);
+ bool res = try_create_integer(literal, type_unsigned_long_long, base);
+ if (!res)
+ panic("internal error when parsing number literal");
+
+finished:
+ tarval_set_integer_overflow_mode(old_mode);
+}
+
+void determine_literal_type(literal_expression_t *literal)
+{
+ switch (literal->base.kind) {
+ case EXPR_LITERAL_INTEGER:
+ case EXPR_LITERAL_INTEGER_OCTAL:
+ case EXPR_LITERAL_INTEGER_HEXADECIMAL:
+ create_integer_tarval(literal);
+ return;
+ default:
+ break;
+ }
+}
+
/**
- * Creates a SymConst node representing a string literal.
- *
- * @param literal the string literal
+ * Creates a Const node representing a constant.
*/
-static ir_node *string_literal_to_firm(
- const string_literal_expression_t* literal)
+static ir_node *literal_to_firm(const literal_expression_t *literal)
{
- return string_to_firm(&literal->base.source_position, "Lstr.%u",
- &literal->value);
+ type_t *type = skip_typeref(literal->base.type);
+ ir_mode *mode = get_ir_mode_storage(type);
+ const char *string = literal->value.begin;
+ size_t size = literal->value.size;
+ ir_tarval *tv;
+
+ switch (literal->base.kind) {
+ case EXPR_LITERAL_WIDE_CHARACTER: {
+ utf32 v = read_utf8_char(&string);
+ char buf[128];
+ size_t len = snprintf(buf, sizeof(buf), UTF32_PRINTF_FORMAT, v);
+
+ tv = new_tarval_from_str(buf, len, mode);
+ goto make_const;
+ }
+ case EXPR_LITERAL_CHARACTER: {
+ long long int v;
+ if (size == 1 && char_is_signed) {
+ v = (signed char)string[0];
+ } else {
+ v = 0;
+ for (size_t i = 0; i < size; ++i) {
+ v = (v << 8) | ((unsigned char)string[i]);
+ }
+ }
+ char buf[128];
+ size_t len = snprintf(buf, sizeof(buf), "%lld", v);
+
+ tv = new_tarval_from_str(buf, len, mode);
+ goto make_const;
+ }
+ case EXPR_LITERAL_INTEGER:
+ case EXPR_LITERAL_INTEGER_OCTAL:
+ case EXPR_LITERAL_INTEGER_HEXADECIMAL:
+ assert(literal->target_value != NULL);
+ tv = literal->target_value;
+ goto make_const;
+ case EXPR_LITERAL_FLOATINGPOINT:
+ tv = new_tarval_from_str(string, size, mode);
+ goto make_const;
+ case EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL: {
+ char buffer[size + 2];
+ memcpy(buffer, "0x", 2);
+ memcpy(buffer+2, string, size);
+ tv = new_tarval_from_str(buffer, size+2, mode);
+ goto make_const;
+ }
+ case EXPR_LITERAL_BOOLEAN:
+ if (string[0] == 't') {
+ tv = get_mode_one(mode);
+ } else {
+ assert(string[0] == 'f');
+ tv = get_mode_null(mode);
+ }
+ goto make_const;
+ case EXPR_LITERAL_MS_NOOP:
+ tv = get_mode_null(mode);
+ goto make_const;
+ default:
+ break;
+ }
+ panic("Invalid literal kind found");
+
+make_const: ;
+ dbg_info *dbgi = get_dbg_info(&literal->base.source_position);
+ ir_node *res = new_d_Const(dbgi, tv);
+ ir_mode *mode_arith = get_ir_mode_arithmetic(type);
+ return create_conv(dbgi, res, mode_arith);
}
-/**
- * Creates a SymConst node representing a wide string literal.
- *
- * @param literal the wide string literal
+/*
+ * Allocate an area of size bytes aligned at alignment
+ * at a frame type.
*/
-static ir_node *wide_string_literal_to_firm(
- const wide_string_literal_expression_t* const literal)
+static ir_entity *alloc_trampoline(ir_type *frame_type, int size, unsigned alignment)
{
- ir_type *const global_type = get_glob_type();
- ir_type *const elem_type = ir_type_wchar_t;
- dbg_info *const dbgi = get_dbg_info(&literal->base.source_position);
- ir_type *const type = new_d_type_array(id_unique("strtype.%u"), 1,
- elem_type, dbgi);
+ static unsigned area_cnt = 0;
+ char buf[32];
- ident *const id = id_unique("Lstr.%u");
- ir_entity *const entity = new_d_entity(global_type, id, type, dbgi);
- set_entity_ld_ident(entity, id);
- set_entity_variability(entity, variability_constant);
- set_entity_allocation(entity, allocation_static);
+ ir_type *tp = new_type_array(1, ir_type_char);
+ set_array_bounds_int(tp, 0, 0, size);
+ set_type_alignment_bytes(tp, alignment);
- ir_mode *const mode = get_type_mode(elem_type);
+ snprintf(buf, sizeof(buf), "trampolin%u", area_cnt++);
+ ident *name = new_id_from_str(buf);
+ ir_entity *area = new_entity(frame_type, name, tp);
- const wchar_rep_t *const string = literal->value.begin;
- const size_t slen = literal->value.size;
+ /* mark this entity as compiler generated */
+ set_entity_compiler_generated(area, 1);
+ return area;
+}
- set_array_lower_bound_int(type, 0, 0);
- set_array_upper_bound_int(type, 0, slen);
- set_type_size_bytes(type, slen);
- set_type_state(type, layout_fixed);
+/**
+ * Return a node representing a trampoline region
+ * for a given function entity.
+ *
+ * @param dbgi debug info
+ * @param entity the function entity
+ */
+static ir_node *get_trampoline_region(dbg_info *dbgi, ir_entity *entity)
+{
+ ir_entity *region = NULL;
+ int i;
- tarval **const tvs = xmalloc(slen * sizeof(tvs[0]));
- for (size_t i = 0; i < slen; ++i) {
- tvs[i] = new_tarval_from_long(string[i], mode);
+ if (current_trampolines != NULL) {
+ for (i = ARR_LEN(current_trampolines) - 1; i >= 0; --i) {
+ if (current_trampolines[i].function == entity) {
+ region = current_trampolines[i].region;
+ break;
+ }
+ }
+ } else {
+ current_trampolines = NEW_ARR_F(trampoline_region, 0);
}
+ ir_graph *irg = current_ir_graph;
+ if (region == NULL) {
+ /* create a new region */
+ ir_type *frame_tp = get_irg_frame_type(irg);
+ trampoline_region reg;
+ reg.function = entity;
- set_array_entity_values(entity, tvs, slen);
- free(tvs);
+ reg.region = alloc_trampoline(frame_tp,
+ be_params->trampoline_size,
+ be_params->trampoline_align);
+ ARR_APP1(trampoline_region, current_trampolines, reg);
+ region = reg.region;
+ }
+ return new_d_simpleSel(dbgi, get_irg_no_mem(irg), get_irg_frame(irg),
+ region);
+}
- return create_symconst(dbgi, mode_P_data, entity);
+/**
+ * Creates a trampoline for a function represented by an entity.
+ *
+ * @param dbgi debug info
+ * @param mode the (reference) mode for the function address
+ * @param entity the function entity
+ */
+static ir_node *create_trampoline(dbg_info *dbgi, ir_mode *mode,
+ ir_entity *entity)
+{
+ assert(entity != NULL);
+ ir_node *in[3];
+ in[0] = get_trampoline_region(dbgi, entity);
+ in[1] = create_symconst(dbgi, mode, entity);
+ in[2] = get_irg_frame(current_ir_graph);
+
+ ir_node *irn = new_d_Builtin(dbgi, get_store(), 3, in, ir_bk_inner_trampoline, get_unknown_type());
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return new_Proj(irn, mode, pn_Builtin_1_result);
}
+/**
+ * Dereference an address.
+ *
+ * @param dbgi debug info
+ * @param type the type of the dereferenced result (the points_to type)
+ * @param addr the address to dereference
+ */
static ir_node *deref_address(dbg_info *const dbgi, type_t *const type,
ir_node *const addr)
{
}
ir_cons_flags flags = type->base.qualifiers & TYPE_QUALIFIER_VOLATILE
- ? cons_volatile : 0;
+ ? cons_volatile : cons_none;
ir_mode *const mode = get_type_mode(irtype);
ir_node *const memory = get_store();
ir_node *const load = new_d_Load(dbgi, memory, addr, mode, flags);
}
/**
- * Creates a strict Conv if neccessary.
+ * Creates a strict Conv (to the node's mode) if necessary.
+ *
+ * @param dbgi debug info
+ * @param node the node to strict conv
*/
static ir_node *do_strict_conv(dbg_info *dbgi, ir_node *node)
{
return new_d_strictConv(dbgi, node, mode);
}
+/**
+ * Returns the address of a global variable.
+ *
+ * @param dbgi debug info
+ * @param variable the variable
+ */
static ir_node *get_global_var_address(dbg_info *const dbgi,
- const entity_t *const entity)
+ const variable_t *const variable)
{
- assert(entity->kind == ENTITY_VARIABLE);
- assert(entity->declaration.kind == DECLARATION_KIND_GLOBAL_VARIABLE);
-
- ir_entity *const irentity = entity->variable.v.entity;
- if (entity->variable.thread_local) {
+ ir_entity *const irentity = variable->v.entity;
+ if (variable->thread_local) {
ir_node *const no_mem = new_NoMem();
ir_node *const tls = get_irg_tls(current_ir_graph);
return new_d_simpleSel(dbgi, no_mem, tls, irentity);
{
ir_graph *const irg = current_ir_graph;
const ir_type *const owner = get_entity_owner(ent);
- if (owner == get_irg_frame_type(irg)) {
- return get_irg_frame(irg);
+ if (owner == current_outer_frame || owner == current_outer_value_type) {
+ assert(current_static_link != NULL);
+ return current_static_link;
} else {
- assert(owner == get_method_value_param_type(get_entity_type(get_irg_entity(irg))));
- return get_irg_value_param_base(irg);
+ return get_irg_frame(irg);
}
}
/* make sure the type is constructed */
(void) get_ir_type(type);
+ if (entity->kind == ENTITY_FUNCTION && entity->function.btk != bk_none) {
+ ir_entity *irentity = get_function_entity(entity, NULL);
+ /* for gcc compatibility we have to produce (dummy) addresses for some
+ * builtins which don't have entities */
+ if (irentity == NULL) {
+ if (warning.other) {
+ warningf(&ref->base.source_position,
+ "taking address of builtin '%Y'",
+ ref->entity->base.symbol);
+ }
+
+ /* simply create a NULL pointer */
+ ir_mode *mode = get_ir_mode_arithmetic(type_void_ptr);
+ ir_node *res = new_Const(get_mode_null(mode));
+
+ return res;
+ }
+ }
+
switch ((declaration_kind_t) entity->declaration.kind) {
case DECLARATION_KIND_UNKNOWN:
break;
}
case DECLARATION_KIND_FUNCTION: {
ir_mode *const mode = get_ir_mode_storage(type);
- return create_symconst(dbgi, mode, entity->function.entity);
+ return create_symconst(dbgi, mode, entity->function.irentity);
}
case DECLARATION_KIND_INNER_FUNCTION: {
ir_mode *const mode = get_ir_mode_storage(type);
if (!entity->function.goto_to_outer && !entity->function.need_closure) {
/* inner function not using the closure */
- return create_symconst(dbgi, mode, entity->function.entity);
+ return create_symconst(dbgi, mode, entity->function.irentity);
} else {
- /* TODO: need trampoline here */
- panic("Trampoline code not implemented");
- return create_symconst(dbgi, mode, entity->function.entity);
+ /* need trampoline here */
+ return create_trampoline(dbgi, mode, entity->function.irentity);
}
}
case DECLARATION_KIND_GLOBAL_VARIABLE: {
- ir_node *const addr = get_global_var_address(dbgi, entity);
- return deref_address(dbgi, entity->declaration.type, addr);
+ const variable_t *variable = &entity->variable;
+ ir_node *const addr = get_global_var_address(dbgi, variable);
+ return deref_address(dbgi, variable->base.type, addr);
}
case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: {
* as an indicator for no real address) */
return NULL;
case DECLARATION_KIND_GLOBAL_VARIABLE: {
- ir_node *const addr = get_global_var_address(dbgi, entity);
+ ir_node *const addr = get_global_var_address(dbgi, &entity->variable);
return addr;
}
case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY: {
case DECLARATION_KIND_FUNCTION: {
type_t *const type = skip_typeref(entity->declaration.type);
ir_mode *const mode = get_ir_mode_storage(type);
- return create_symconst(dbgi, mode, entity->function.entity);
+ return create_symconst(dbgi, mode, entity->function.irentity);
+ }
+
+ case DECLARATION_KIND_INNER_FUNCTION: {
+ type_t *const type = skip_typeref(entity->declaration.type);
+ ir_mode *const mode = get_ir_mode_storage(type);
+ if (!entity->function.goto_to_outer && !entity->function.need_closure) {
+ /* inner function not using the closure */
+ return create_symconst(dbgi, mode, entity->function.irentity);
+ } else {
+ /* need trampoline here */
+ return create_trampoline(dbgi, mode, entity->function.irentity);
+ }
}
- case DECLARATION_KIND_INNER_FUNCTION:
case DECLARATION_KIND_COMPOUND_MEMBER:
panic("not implemented reference type");
}
panic("reference to declaration with unknown type found");
}
+/**
+ * Generate an unary builtin.
+ *
+ * @param kind the builtin kind to generate
+ * @param op the operand
+ * @param function_type the function type for the GNU builtin routine
+ * @param db debug info
+ */
+static ir_node *gen_unary_builtin(ir_builtin_kind kind, expression_t *op, type_t *function_type, dbg_info *db)
+{
+ ir_node *in[1];
+ in[0] = expression_to_firm(op);
+
+ ir_type *tp = get_ir_type(function_type);
+ ir_type *res = get_method_res_type(tp, 0);
+ ir_node *irn = new_d_Builtin(db, get_irg_no_mem(current_ir_graph), 1, in, kind, tp);
+ set_irn_pinned(irn, op_pin_state_floats);
+ return new_Proj(irn, get_type_mode(res), pn_Builtin_1_result);
+}
+
+/**
+ * Generate a pinned unary builtin.
+ *
+ * @param kind the builtin kind to generate
+ * @param op the operand
+ * @param function_type the function type for the GNU builtin routine
+ * @param db debug info
+ */
+static ir_node *gen_unary_builtin_pinned(ir_builtin_kind kind, expression_t *op,
+ type_t *function_type, dbg_info *db)
+{
+ ir_node *in[1];
+ in[0] = expression_to_firm(op);
+
+ ir_type *tp = get_ir_type(function_type);
+ ir_type *res = get_method_res_type(tp, 0);
+ ir_node *mem = get_store();
+ ir_node *irn = new_d_Builtin(db, mem, 1, in, kind, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return new_Proj(irn, get_type_mode(res), pn_Builtin_1_result);
+}
+
+/**
+ * Generate an binary-void-return builtin.
+ *
+ * @param kind the builtin kind to generate
+ * @param op1 the first operand
+ * @param op2 the second operand
+ * @param function_type the function type for the GNU builtin routine
+ * @param db debug info
+ */
+static ir_node *gen_binary_builtin_mem(ir_builtin_kind kind, expression_t *op1,
+ expression_t *op2, type_t *function_type,
+ dbg_info *db)
+{
+ ir_node *in[2];
+ in[0] = expression_to_firm(op1);
+ in[1] = expression_to_firm(op2);
+
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *mem = get_store();
+ ir_node *irn = new_d_Builtin(db, mem, 2, in, kind, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return NULL;
+}
+
/**
* Transform calls to builtin functions.
*/
{
dbg_info *dbgi = get_dbg_info(&call->base.source_position);
- assert(call->function->kind == EXPR_BUILTIN_SYMBOL);
- builtin_symbol_expression_t *builtin = &call->function->builtin_symbol;
+ assert(call->function->kind == EXPR_REFERENCE);
+ reference_expression_t *builtin = &call->function->reference;
type_t *type = skip_typeref(builtin->base.type);
assert(is_type_pointer(type));
- type_t *function_type = skip_typeref(type->pointer.points_to);
- symbol_t *symbol = builtin->symbol;
+ type_t *function_type = skip_typeref(type->pointer.points_to);
- switch(symbol->ID) {
- case T___builtin_alloca: {
+ switch (builtin->entity->function.btk) {
+ case bk_gnu_builtin_alloca: {
if (call->arguments == NULL || call->arguments->next != NULL) {
panic("invalid number of parameters on __builtin_alloca");
}
return res;
}
- case T___builtin_huge_val:
- case T___builtin_inf:
- case T___builtin_inff:
- case T___builtin_infl: {
- type_t *type = function_type->function.return_type;
- ir_mode *mode = get_ir_mode_arithmetic(type);
- tarval *tv = get_mode_infinite(mode);
- ir_node *res = new_d_Const(dbgi, tv);
- return res;
+ case bk_gnu_builtin_huge_val:
+ case bk_gnu_builtin_huge_valf:
+ case bk_gnu_builtin_huge_vall:
+ case bk_gnu_builtin_inf:
+ case bk_gnu_builtin_inff:
+ case bk_gnu_builtin_infl: {
+ type_t *type = function_type->function.return_type;
+ ir_mode *mode = get_ir_mode_arithmetic(type);
+ ir_tarval *tv = get_mode_infinite(mode);
+ ir_node *res = new_d_Const(dbgi, tv);
+ return res;
}
- case T___builtin_nan:
- case T___builtin_nanf:
- case T___builtin_nanl: {
+ case bk_gnu_builtin_nan:
+ case bk_gnu_builtin_nanf:
+ case bk_gnu_builtin_nanl: {
/* Ignore string for now... */
assert(is_type_function(function_type));
- type_t *type = function_type->function.return_type;
- ir_mode *mode = get_ir_mode_arithmetic(type);
- tarval *tv = get_mode_NAN(mode);
- ir_node *res = new_d_Const(dbgi, tv);
+ type_t *type = function_type->function.return_type;
+ ir_mode *mode = get_ir_mode_arithmetic(type);
+ ir_tarval *tv = get_mode_NAN(mode);
+ ir_node *res = new_d_Const(dbgi, tv);
return res;
}
- case T___builtin_expect: {
+ case bk_gnu_builtin_expect: {
expression_t *argument = call->arguments->expression;
return _expression_to_firm(argument);
}
- case T___builtin_va_end:
+ case bk_gnu_builtin_va_end:
/* evaluate the argument of va_end for its side effects */
_expression_to_firm(call->arguments->expression);
return NULL;
+ case bk_gnu_builtin_frame_address: {
+ expression_t *const expression = call->arguments->expression;
+ bool val = fold_constant_to_bool(expression);
+ if (!val) {
+ /* the nice case */
+ return get_irg_frame(current_ir_graph);
+ } else {
+ /* get the argument */
+ ir_node *in[2];
+
+ in[0] = expression_to_firm(expression);
+ in[1] = get_irg_frame(current_ir_graph);
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_irg_no_mem(current_ir_graph), 2, in, ir_bk_frame_address, tp);
+ return new_Proj(irn, mode_P_data, pn_Builtin_1_result);
+ }
+ }
+ case bk_gnu_builtin_return_address: {
+ expression_t *const expression = call->arguments->expression;
+ ir_node *in[2];
+
+ in[0] = expression_to_firm(expression);
+ in[1] = get_irg_frame(current_ir_graph);
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_irg_no_mem(current_ir_graph), 2, in, ir_bk_return_address, tp);
+ return new_Proj(irn, mode_P_data, pn_Builtin_1_result);
+ }
+ case bk_gnu_builtin_ffs:
+ return gen_unary_builtin(ir_bk_ffs, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_clz:
+ return gen_unary_builtin(ir_bk_clz, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_ctz:
+ return gen_unary_builtin(ir_bk_ctz, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_popcount:
+ case bk_ms__popcount:
+ return gen_unary_builtin(ir_bk_popcount, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_parity:
+ return gen_unary_builtin(ir_bk_parity, call->arguments->expression, function_type, dbgi);
+ case bk_gnu_builtin_prefetch: {
+ call_argument_t *const args = call->arguments;
+ expression_t *const addr = args->expression;
+ ir_node *in[3];
+
+ in[0] = _expression_to_firm(addr);
+ if (args->next != NULL) {
+ expression_t *const rw = args->next->expression;
+
+ in[1] = _expression_to_firm(rw);
+
+ if (args->next->next != NULL) {
+ expression_t *const locality = args->next->next->expression;
+
+ in[2] = expression_to_firm(locality);
+ } else {
+ in[2] = new_Const_long(mode_int, 3);
+ }
+ } else {
+ in[1] = new_Const_long(mode_int, 0);
+ in[2] = new_Const_long(mode_int, 3);
+ }
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_store(), 3, in, ir_bk_prefetch, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return NULL;
+ }
+ case bk_gnu_builtin_object_size: {
+ /* determine value of "type" */
+ expression_t *type_expression = call->arguments->next->expression;
+ long type_val = fold_constant_to_int(type_expression);
+ type_t *type = function_type->function.return_type;
+ ir_mode *mode = get_ir_mode_arithmetic(type);
+ /* just produce a "I don't know" result */
+ ir_tarval *result = type_val & 2 ? get_mode_null(mode) :
+ get_mode_minus_one(mode);
+
+ return new_d_Const(dbgi, result);
+ }
+ case bk_gnu_builtin_trap:
+ case bk_ms__ud2:
+ {
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_store(), 0, NULL, ir_bk_trap, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return NULL;
+ }
+ case bk_ms__debugbreak: {
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_store(), 0, NULL, ir_bk_debugbreak, tp);
+ set_store(new_Proj(irn, mode_M, pn_Builtin_M));
+ return NULL;
+ }
+ case bk_ms_ReturnAddress: {
+ ir_node *in[2];
+
+ in[0] = new_Const(get_mode_null(mode_int));
+ in[1] = get_irg_frame(current_ir_graph);
+ ir_type *tp = get_ir_type(function_type);
+ ir_node *irn = new_d_Builtin(dbgi, get_irg_no_mem(current_ir_graph), 2, in, ir_bk_return_address, tp);
+ return new_Proj(irn, mode_P_data, pn_Builtin_1_result);
+ }
+ case bk_ms_rotl:
+ case bk_ms_rotl64: {
+ ir_node *val = expression_to_firm(call->arguments->expression);
+ ir_node *shf = expression_to_firm(call->arguments->next->expression);
+ ir_mode *mode = get_irn_mode(val);
+ return new_d_Rotl(dbgi, val, create_conv(dbgi, shf, mode_uint), mode);
+ }
+ case bk_ms_rotr:
+ case bk_ms_rotr64: {
+ ir_node *val = expression_to_firm(call->arguments->expression);
+ ir_node *shf = expression_to_firm(call->arguments->next->expression);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *c = new_Const_long(mode_uint, get_mode_size_bits(mode));
+ ir_node *sub = new_d_Sub(dbgi, c, create_conv(dbgi, shf, mode_uint), mode_uint);
+ return new_d_Rotl(dbgi, val, sub, mode);
+ }
+ case bk_ms_byteswap_ushort:
+ case bk_ms_byteswap_ulong:
+ case bk_ms_byteswap_uint64:
+ return gen_unary_builtin(ir_bk_bswap, call->arguments->expression, function_type, dbgi);
+ case bk_ms__inbyte:
+ case bk_ms__inword:
+ case bk_ms__indword:
+ return gen_unary_builtin_pinned(ir_bk_inport, call->arguments->expression, function_type, dbgi);
+ case bk_ms__outbyte:
+ case bk_ms__outword:
+ case bk_ms__outdword:
+ return gen_binary_builtin_mem(ir_bk_outport, call->arguments->expression,
+ call->arguments->next->expression, function_type, dbgi);
default:
panic("unsupported builtin found");
}
* 176.gcc for instance might allocate 2GB instead of 256 MB if alloca is not
* handled right...
*/
-static ir_node *call_expression_to_firm(const call_expression_t *call)
+static ir_node *call_expression_to_firm(const call_expression_t *const call)
{
- dbg_info *dbgi = get_dbg_info(&call->base.source_position);
+ dbg_info *const dbgi = get_dbg_info(&call->base.source_position);
assert(get_cur_block() != NULL);
expression_t *function = call->function;
- if (function->kind == EXPR_BUILTIN_SYMBOL) {
- return process_builtin_call(call);
- }
if (function->kind == EXPR_REFERENCE) {
const reference_expression_t *ref = &function->reference;
entity_t *entity = ref->entity;
- if (entity->kind == ENTITY_FUNCTION
- && entity->function.entity == rts_entities[rts_alloca]) {
- /* handle alloca() call */
- expression_t *argument = call->arguments->expression;
- ir_node *size = expression_to_firm(argument);
- ir_mode *mode = get_ir_mode_arithmetic(type_size_t);
+ if (entity->kind == ENTITY_FUNCTION) {
+ ir_entity *irentity = entity->function.irentity;
+ if (irentity == NULL)
+ irentity = get_function_entity(entity, NULL);
- size = create_conv(dbgi, size, mode);
+ if (irentity == NULL && entity->function.btk != bk_none) {
+ return process_builtin_call(call);
+ }
- 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);
+#if 0
+ if (irentity == rts_entities[rts_alloca]) {
+ /* handle alloca() call */
+ expression_t *argument = call->arguments->expression;
+ ir_node *size = expression_to_firm(argument);
+ ir_mode *mode = get_ir_mode_arithmetic(type_size_t);
- return res;
+ size = create_conv(dbgi, size, mode);
+
+ ir_node *store = get_store();
+ 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;
+ }
+#endif
}
}
ir_node *callee = expression_to_firm(function);
/* we need to construct a new method type matching the call
* arguments... */
+ type_dbg_info *tdbgi = get_type_dbg_info_((const type_t*) function_type);
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);
+ new_method_type = new_d_type_method(n_parameters, n_res, tdbgi);
set_method_calling_convention(new_method_type,
get_method_calling_convention(ir_method_type));
set_method_additional_properties(new_method_type,
ir_node *store = get_store();
ir_node *node = new_d_Call(dbgi, store, callee, n_parameters, in,
ir_method_type);
- ir_node *mem = new_d_Proj(dbgi, node, mode_M, pn_Call_M_regular);
+ ir_node *mem = new_d_Proj(dbgi, node, mode_M, pn_Call_M);
set_store(mem);
type_t *return_type = skip_typeref(function_type->return_type);
* nodes into a new and unreachable block. */
keep_alive(node);
keep_alive(get_cur_block());
- new_Block(0, NULL);
+ ir_node *block = new_Block(0, NULL);
+ set_cur_block(block);
}
return result;
if (is_type_scalar(type)) {
ir_cons_flags flags = type->base.qualifiers & TYPE_QUALIFIER_VOLATILE
- ? cons_volatile : 0;
+ ? cons_volatile : cons_none;
ir_node *store = new_d_Store(dbgi, memory, addr, value, flags);
ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
set_store(store_mem);
} else {
ir_type *irtype = get_ir_type(type);
ir_node *copyb = new_d_CopyB(dbgi, memory, addr, value, irtype);
- ir_node *copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular);
+ ir_node *copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M);
set_store(copyb_mem);
}
}
-static tarval *create_bitfield_mask(ir_mode *mode, int offset, int size)
+static ir_tarval *create_bitfield_mask(ir_mode *mode, int offset, int size)
{
- tarval *all_one = get_mode_all_one(mode);
- int mode_size = get_mode_size_bits(mode);
+ ir_tarval *all_one = get_mode_all_one(mode);
+ int mode_size = get_mode_size_bits(mode);
assert(offset >= 0);
assert(size >= 0);
return all_one;
}
- long shiftr = get_mode_size_bits(mode) - size;
- long shiftl = offset;
- tarval *tv_shiftr = new_tarval_from_long(shiftr, mode_uint);
- tarval *tv_shiftl = new_tarval_from_long(shiftl, mode_uint);
- tarval *mask0 = tarval_shr(all_one, tv_shiftr);
- tarval *mask1 = tarval_shl(mask0, tv_shiftl);
+ long shiftr = get_mode_size_bits(mode) - size;
+ long shiftl = offset;
+ ir_tarval *tv_shiftr = new_tarval_from_long(shiftr, mode_uint);
+ ir_tarval *tv_shiftl = new_tarval_from_long(shiftl, mode_uint);
+ ir_tarval *mask0 = tarval_shr(all_one, tv_shiftr);
+ ir_tarval *mask1 = tarval_shl(mask0, tv_shiftl);
return mask1;
}
int bitoffset = get_entity_offset_bits_remainder(entity);
int bitsize = get_mode_size_bits(get_type_mode(entity_type));
- tarval *mask = create_bitfield_mask(mode, 0, bitsize);
- ir_node *mask_node = new_d_Const(dbgi, mask);
- ir_node *value_masked = new_d_And(dbgi, value, mask_node, mode);
- tarval *shiftl = new_tarval_from_long(bitoffset, mode_uint);
- ir_node *shiftcount = new_d_Const(dbgi, shiftl);
- ir_node *value_maskshift = new_d_Shl(dbgi, value_masked, shiftcount, mode);
+ ir_tarval *mask = create_bitfield_mask(mode, 0, bitsize);
+ ir_node *mask_node = new_d_Const(dbgi, mask);
+ ir_node *value_masked = new_d_And(dbgi, value, mask_node, mode);
+ ir_tarval *shiftl = new_tarval_from_long(bitoffset, mode_uint);
+ ir_node *shiftcount = new_d_Const(dbgi, shiftl);
+ ir_node *value_maskshift = new_d_Shl(dbgi, value_masked, shiftcount, mode);
/* load current value */
- ir_node *mem = get_store();
- ir_node *load = new_d_Load(dbgi, mem, addr, mode,
- set_volatile ? cons_volatile : 0);
- ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
- ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
- tarval *shift_mask = create_bitfield_mask(mode, bitoffset, bitsize);
- tarval *inv_mask = tarval_not(shift_mask);
- ir_node *inv_mask_node = new_d_Const(dbgi, inv_mask);
- ir_node *load_res_masked = new_d_And(dbgi, load_res, inv_mask_node, mode);
+ ir_node *mem = get_store();
+ ir_node *load = new_d_Load(dbgi, mem, addr, mode,
+ set_volatile ? cons_volatile : cons_none);
+ ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
+ ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
+ ir_tarval *shift_mask = create_bitfield_mask(mode, bitoffset, bitsize);
+ ir_tarval *inv_mask = tarval_not(shift_mask);
+ ir_node *inv_mask_node = new_d_Const(dbgi, inv_mask);
+ ir_node *load_res_masked = new_d_And(dbgi, load_res, inv_mask_node, mode);
/* construct new value and store */
ir_node *new_val = new_d_Or(dbgi, load_res_masked, value_maskshift, mode);
ir_node *store = new_d_Store(dbgi, load_mem, addr, new_val,
- set_volatile ? cons_volatile : 0);
+ set_volatile ? cons_volatile : cons_none);
ir_node *store_mem = new_d_Proj(dbgi, store, mode_M, pn_Store_M);
set_store(store_mem);
type_t *type = expression->base.type;
ir_mode *mode = get_ir_mode_storage(type);
ir_node *mem = get_store();
- ir_node *load = new_d_Load(dbgi, mem, addr, mode, 0);
+ ir_node *load = new_d_Load(dbgi, mem, addr, mode, cons_none);
ir_node *load_mem = new_d_Proj(dbgi, load, mode_M, pn_Load_M);
ir_node *load_res = new_d_Proj(dbgi, load, mode, pn_Load_res);
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_tarval *tvl = new_tarval_from_long(shift_bitsl, mode_uint);
ir_node *countl = new_d_Const(dbgi, 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_tarval *tvr = new_tarval_from_long(shift_bitsr, mode_uint);
ir_node *countr = new_d_Const(dbgi, tvr);
ir_node *shiftr;
if (mode_is_signed(mode)) {
ir_node *offset;
if (is_type_pointer(type)) {
pointer_type_t *pointer_type = &type->pointer;
- offset = get_type_size(pointer_type->points_to);
+ offset = get_type_size_node(pointer_type->points_to);
} else {
assert(is_type_arithmetic(type));
offset = new_Const(get_mode_one(mode));
return entity->declaration.kind == DECLARATION_KIND_LOCAL_VARIABLE;
}
-static pn_Cmp get_pnc(const expression_kind_t kind, type_t *const type)
+static ir_relation get_relation(const expression_kind_t kind)
{
switch(kind) {
- case EXPR_BINARY_EQUAL: return pn_Cmp_Eq;
- case EXPR_BINARY_ISLESSGREATER: return pn_Cmp_Lg;
- case EXPR_BINARY_NOTEQUAL:
- return is_type_float(skip_typeref(type)) ? pn_Cmp_Ne : pn_Cmp_Lg;
+ case EXPR_BINARY_EQUAL: return ir_relation_equal;
+ case EXPR_BINARY_ISLESSGREATER: return ir_relation_less_greater;
+ case EXPR_BINARY_NOTEQUAL: return ir_relation_unordered_less_greater;
case EXPR_BINARY_ISLESS:
- case EXPR_BINARY_LESS: return pn_Cmp_Lt;
+ case EXPR_BINARY_LESS: return ir_relation_less;
case EXPR_BINARY_ISLESSEQUAL:
- case EXPR_BINARY_LESSEQUAL: return pn_Cmp_Le;
+ case EXPR_BINARY_LESSEQUAL: return ir_relation_less_equal;
case EXPR_BINARY_ISGREATER:
- case EXPR_BINARY_GREATER: return pn_Cmp_Gt;
+ case EXPR_BINARY_GREATER: return ir_relation_greater;
case EXPR_BINARY_ISGREATEREQUAL:
- case EXPR_BINARY_GREATEREQUAL: return pn_Cmp_Ge;
- case EXPR_BINARY_ISUNORDERED: return pn_Cmp_Uo;
+ case EXPR_BINARY_GREATEREQUAL: return ir_relation_greater_equal;
+ case EXPR_BINARY_ISUNORDERED: return ir_relation_unordered;
default:
break;
expression_t *op1 = expression->left;
expression_t *op2 = expression->right;
entity_t *var2, *var = NULL;
- ir_node *res = NULL;
- pn_Cmp cmp_val;
-
- cmp_val = get_pnc(expression->base.kind, op1->base.type);
+ ir_node *res = NULL;
+ ir_relation relation = get_relation(expression->base.kind);
if (is_local_variable(op1) && is_local_variable(op2)) {
- var = op1->reference.entity;
+ var = op1->reference.entity;
var2 = op2->reference.entity;
type_t *const type = skip_typeref(var->declaration.type);
ir_node *const irn1 = get_value(var->variable.v.value_number, mode);
ir_node *const irn2 = get_value(var2->variable.v.value_number, mode);
- res = new_d_Confirm(dbi, irn2, irn1, get_inversed_pnc(cmp_val));
+ res = new_d_Confirm(dbi, irn2, irn1, get_inversed_relation(relation));
set_value(var2->variable.v.value_number, res);
- res = new_d_Confirm(dbi, irn1, irn2, cmp_val);
+ res = new_d_Confirm(dbi, irn1, irn2, relation);
set_value(var->variable.v.value_number, res);
return res;
}
expression_t *con;
- if (is_local_variable(op1) && is_constant_expression(op2)) {
+ if (is_local_variable(op1) && is_constant_expression(op2) == EXPR_CLASS_CONSTANT) {
var = op1->reference.entity;
con = op2;
- } else if (is_constant_expression(op1) && is_local_variable(op2)) {
- cmp_val = get_inversed_pnc(cmp_val);
+ } else if (is_constant_expression(op1) == EXPR_CLASS_CONSTANT && is_local_variable(op2)) {
+ relation = get_inversed_relation(relation);
var = op2->reference.entity;
con = op1;
}
ir_mode *const mode = get_ir_mode_storage(type);
res = get_value(var->variable.v.value_number, mode);
- res = new_d_Confirm(dbi, res, expression_to_firm(con), cmp_val);
+ res = new_d_Confirm(dbi, res, expression_to_firm(con), relation);
set_value(var->variable.v.value_number, res);
}
return res;
}
}
+static ir_node *create_cast(dbg_info *dbgi, ir_node *value_node,
+ type_t *from_type, type_t *type)
+{
+ type = skip_typeref(type);
+ if (type == type_void) {
+ /* make sure firm type is constructed */
+ (void) get_ir_type(type);
+ return NULL;
+ }
+ if (!is_type_scalar(type)) {
+ /* make sure firm type is constructed */
+ (void) get_ir_type(type);
+ return value_node;
+ }
+
+ from_type = skip_typeref(from_type);
+ ir_mode *mode = get_ir_mode_storage(type);
+ /* check for conversion from / to __based types */
+ if (is_type_pointer(type) && is_type_pointer(from_type)) {
+ const variable_t *from_var = from_type->pointer.base_variable;
+ const variable_t *to_var = type->pointer.base_variable;
+ if (from_var != to_var) {
+ if (from_var != NULL) {
+ ir_node *const addr = get_global_var_address(dbgi, from_var);
+ ir_node *const base = deref_address(dbgi, from_var->base.type, addr);
+ value_node = new_d_Add(dbgi, value_node, base, get_ir_mode_storage(from_type));
+ }
+ if (to_var != NULL) {
+ ir_node *const addr = get_global_var_address(dbgi, to_var);
+ ir_node *const base = deref_address(dbgi, to_var->base.type, addr);
+ value_node = new_d_Sub(dbgi, value_node, base, mode);
+ }
+ }
+ }
+
+ if (is_type_atomic(type, ATOMIC_TYPE_BOOL)) {
+ /* bool adjustments (we save a mode_Bu, but have to temporarily
+ * convert to mode_b so we only get a 0/1 value */
+ value_node = create_conv(dbgi, value_node, mode_b);
+ }
+
+ ir_mode *mode_arith = get_ir_mode_arithmetic(type);
+ ir_node *node = create_conv(dbgi, value_node, mode);
+ node = do_strict_conv(dbgi, node);
+ node = create_conv(dbgi, node, mode_arith);
+
+ return node;
+}
+
static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
{
dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
ir_node *value_node = expression_to_firm(value);
type_t *value_type = skip_typeref(value->base.type);
assert(is_type_pointer(value_type));
+
+ /* check for __based */
+ const variable_t *const base_var = value_type->pointer.base_variable;
+ if (base_var != NULL) {
+ ir_node *const addr = get_global_var_address(dbgi, base_var);
+ ir_node *const base = deref_address(dbgi, base_var->base.type, addr);
+ value_node = new_d_Add(dbgi, value_node, base, get_ir_mode_storage(value_type));
+ }
type_t *points_to = value_type->pointer.points_to;
return deref_address(dbgi, points_to, value_node);
}
case EXPR_UNARY_PREFIX_INCREMENT:
case EXPR_UNARY_PREFIX_DECREMENT:
return create_incdec(expression);
+ case EXPR_UNARY_CAST_IMPLICIT:
case EXPR_UNARY_CAST: {
ir_node *value_node = expression_to_firm(value);
- if (is_type_scalar(type)) {
- ir_mode *mode = get_ir_mode_storage(type);
- ir_node *node = create_conv(dbgi, value_node, mode);
- node = do_strict_conv(dbgi, node);
- ir_mode *mode_arith = get_ir_mode_arithmetic(type);
- node = create_conv(dbgi, node, mode_arith);
- return node;
- } else {
- /* make sure firm type is constructed */
- (void) get_ir_type(type);
- return value_node;
- }
- }
- case EXPR_UNARY_CAST_IMPLICIT: {
- ir_node *value_node = expression_to_firm(value);
- if (is_type_scalar(type)) {
- ir_mode *mode = get_ir_mode_storage(type);
- ir_node *res = create_conv(dbgi, value_node, mode);
- ir_mode *mode_arith = get_ir_mode_arithmetic(type);
- res = create_conv(dbgi, res, mode_arith);
- return res;
- } else {
- return value_node;
- }
+ type_t *from_type = value->base.type;
+ return create_cast(dbgi, value_node, from_type, type);
}
case EXPR_UNARY_ASSUME:
- if (firm_opt.confirm)
- return handle_assume(dbgi, value);
- else
- return NULL;
+ return handle_assume(dbgi, value);
default:
break;
static ir_node *produce_condition_result(const expression_t *expression,
ir_mode *mode, dbg_info *dbgi)
{
- ir_node *cur_block = get_cur_block();
-
- ir_node *one_block = new_immBlock();
- set_cur_block(one_block);
- ir_node *one = new_Const(get_mode_one(mode));
- ir_node *jmp_one = new_d_Jmp(dbgi);
-
- ir_node *zero_block = new_immBlock();
- set_cur_block(zero_block);
- ir_node *zero = new_Const(get_mode_null(mode));
- ir_node *jmp_zero = new_d_Jmp(dbgi);
-
- set_cur_block(cur_block);
+ ir_node *const one_block = new_immBlock();
+ ir_node *const zero_block = new_immBlock();
create_condition_evaluation(expression, one_block, zero_block);
mature_immBlock(one_block);
mature_immBlock(zero_block);
- ir_node *in_cf[2] = { jmp_one, jmp_zero };
- new_Block(2, in_cf);
+ ir_node *const jmp_one = new_rd_Jmp(dbgi, one_block);
+ ir_node *const jmp_zero = new_rd_Jmp(dbgi, zero_block);
+ ir_node *const in_cf[2] = { jmp_one, jmp_zero };
+ ir_node *const block = new_Block(lengthof(in_cf), in_cf);
+ set_cur_block(block);
- ir_node *in[2] = { one, zero };
- ir_node *val = new_d_Phi(dbgi, 2, in, mode);
+ ir_node *const one = new_Const(get_mode_one(mode));
+ ir_node *const zero = new_Const(get_mode_null(mode));
+ ir_node *const in[2] = { one, zero };
+ ir_node *const val = new_d_Phi(dbgi, lengthof(in), in, mode);
return val;
}
assert(is_type_pointer(type));
pointer_type_t *const pointer_type = &type->pointer;
type_t *const points_to = skip_typeref(pointer_type->points_to);
- unsigned elem_size = get_type_size_const(points_to);
-
- value = create_conv(dbgi, value, mode);
-
- /* gcc extension: allow arithmetic with void * and function * */
- if ((elem_size == 0 && is_type_atomic(points_to, ATOMIC_TYPE_VOID)) ||
- is_type_function(points_to)) {
- elem_size = 1;
- }
-
- assert(elem_size >= 1);
- if (elem_size == 1)
- return value;
-
- ir_node *const cnst = new_Const_long(mode, (long)elem_size);
- ir_node *const mul = new_d_Mul(dbgi, value, cnst, mode);
+ ir_node * elem_size = get_type_size_node(points_to);
+ elem_size = create_conv(dbgi, elem_size, mode);
+ value = create_conv(dbgi, value, mode);
+ ir_node *const mul = new_d_Mul(dbgi, value, elem_size, mode);
return mul;
}
const pointer_type_t *const ptr_type = &type_left->pointer;
mode = get_ir_mode_arithmetic(expression->base.type);
- ir_node *const elem_size = get_type_size(ptr_type->points_to);
+ ir_node *const elem_size = get_type_size_node(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();
case EXPR_BINARY_DIV:
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);
- }
+ ir_node *op = new_d_Div(dbgi, pin, left, right, mode,
+ op_pin_state_floats);
+ ir_node *res = new_d_Proj(dbgi, op, mode, pn_Div_res);
return res;
}
case EXPR_BINARY_MOD:
type_t *type = skip_typeref(expression->base.type);
ir_mode *mode = get_ir_mode_arithmetic(type);
- if (is_constant_expression(expression->left)) {
- long val = fold_constant(expression->left);
+ if (is_constant_expression(expression->left) == EXPR_CLASS_CONSTANT) {
+ bool val = fold_constant_to_bool(expression->left);
expression_kind_t ekind = expression->base.kind;
assert(ekind == EXPR_BINARY_LOGICAL_AND || ekind == EXPR_BINARY_LOGICAL_OR);
if (ekind == EXPR_BINARY_LOGICAL_AND) {
- if (val == 0) {
+ if (!val) {
return new_Const(get_mode_null(mode));
}
} else {
- if (val != 0) {
+ if (val) {
return new_Const(get_mode_one(mode));
}
}
- if (is_constant_expression(expression->right)) {
- long const valr = fold_constant(expression->right);
- return valr != 0 ?
- new_Const(get_mode_one(mode)) :
- new_Const(get_mode_null(mode));
+ if (is_constant_expression(expression->right) == EXPR_CLASS_CONSTANT) {
+ bool valr = fold_constant_to_bool(expression->right);
+ return create_Const_from_bool(mode, valr);
}
return produce_condition_result(expression->right, mode, dbgi);
dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
const expression_t *left_expr = expression->left;
type_t *type = skip_typeref(left_expr->base.type);
- ir_mode *left_mode = get_ir_mode_storage(type);
ir_node *right = expression_to_firm(expression->right);
ir_node *left_addr = expression_to_addr(left_expr);
ir_node *left = get_value_from_lvalue(left_expr, left_addr);
ir_node *result = create_op(dbgi, expression, left, right);
- result = create_conv(dbgi, result, left_mode);
+ result = create_cast(dbgi, result, expression->right->base.type, type);
result = do_strict_conv(dbgi, result);
result = set_value_for_expression_addr(left_expr, result, left_addr);
case EXPR_BINARY_ISLESSEQUAL:
case EXPR_BINARY_ISLESSGREATER:
case EXPR_BINARY_ISUNORDERED: {
- 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 *cmp = new_d_Cmp(dbgi, left, right);
- long pnc = get_pnc(kind, expression->left->base.type);
- ir_node *proj = new_d_Proj(dbgi, cmp, mode_b, pnc);
- return proj;
+ 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_relation relation = get_relation(kind);
+ ir_node *cmp = new_d_Cmp(dbgi, left, right, relation);
+ return cmp;
}
case EXPR_BINARY_ASSIGN: {
ir_node *addr = expression_to_addr(expression->left);
assert(designator->array_index != NULL);
assert(is_type_array(type));
- long index = fold_constant(array_index);
+ long index = fold_constant_to_int(array_index);
ir_type *arr_type = get_ir_type(type);
ir_type *elem_type = get_array_element_type(arr_type);
long elem_size = get_type_size_bytes(elem_type);
static ir_node *offsetof_to_firm(const offsetof_expression_t *expression)
{
- ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
- long offset = get_offsetof_offset(expression);
- tarval *tv = new_tarval_from_long(offset, mode);
- dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
+ long offset = get_offsetof_offset(expression);
+ ir_tarval *tv = new_tarval_from_long(offset, mode);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
return new_d_Const(dbgi, tv);
}
ir_entity *const entity = new_d_entity(frame_type, id, irtype, dbgi);
set_entity_ld_ident(entity, id);
- set_entity_variability(entity, variability_uninitialized);
-
/* create initialisation code */
initializer_t *initializer = expression->initializer;
create_local_initializer(initializer, dbgi, entity, type);
/* create a sel for the compound literal address */
- ir_node *frame = get_local_frame(entity);
+ ir_node *frame = get_irg_frame(current_ir_graph);
ir_node *sel = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
return sel;
}
*/
static ir_node *sizeof_to_firm(const typeprop_expression_t *expression)
{
- type_t *type = expression->type;
- 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. */
+ type_t *const type = skip_typeref(expression->type);
+ /* §6.5.3.4:2 if the type is a VLA, evaluate the expression. */
if (is_type_array(type) && type->array.is_vla
&& expression->tp_expression != NULL) {
expression_to_firm(expression->tp_expression);
}
+ /* strange gnu extensions: sizeof(function) == 1 */
+ if (is_type_function(type)) {
+ ir_mode *mode = get_ir_mode_storage(type_size_t);
+ return new_Const(get_mode_one(mode));
+ }
- return get_type_size(type);
+ return get_type_size_node(type);
}
static entity_t *get_expression_entity(const expression_t *expression)
return expression->reference.entity;
}
+static unsigned get_cparser_entity_alignment(const entity_t *entity)
+{
+ switch(entity->kind) {
+ DECLARATION_KIND_CASES
+ return entity->declaration.alignment;
+ case ENTITY_STRUCT:
+ case ENTITY_UNION:
+ return entity->compound.alignment;
+ case ENTITY_TYPEDEF:
+ return entity->typedefe.alignment;
+ default:
+ break;
+ }
+ return 0;
+}
+
/**
* Transform an alignof expression into Firm code.
*/
static ir_node *alignof_to_firm(const typeprop_expression_t *expression)
{
- ir_entity *irentity = NULL;
+ unsigned alignment = 0;
const expression_t *tp_expression = expression->tp_expression;
if (tp_expression != NULL) {
entity_t *entity = get_expression_entity(tp_expression);
- if (entity != NULL && is_declaration(entity)) {
- switch (entity->declaration.kind) {
- case DECLARATION_KIND_UNKNOWN:
- panic("unknown entity reference found");
- case DECLARATION_KIND_COMPOUND_MEMBER:
- irentity = entity->compound_member.entity;
- break;
- case DECLARATION_KIND_GLOBAL_VARIABLE:
- case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY:
- irentity = entity->variable.v.entity;
- break;
- case DECLARATION_KIND_PARAMETER_ENTITY:
- irentity = entity->parameter.v.entity;
- break;
- case DECLARATION_KIND_FUNCTION:
- case DECLARATION_KIND_INNER_FUNCTION:
- irentity = entity->function.entity;
- break;
- case DECLARATION_KIND_PARAMETER:
- case DECLARATION_KIND_LOCAL_VARIABLE:
- case DECLARATION_KIND_VARIABLE_LENGTH_ARRAY:
- break;
+ if (entity != NULL) {
+ if (entity->kind == ENTITY_FUNCTION) {
+ /* a gnu-extension */
+ alignment = 1;
+ } else {
+ alignment = get_cparser_entity_alignment(entity);
}
}
}
- ir_type *irtype;
- if (irentity != NULL) {
- irtype = get_entity_type(irentity);
- } else {
+ if (alignment == 0) {
type_t *type = expression->type;
- irtype = get_ir_type(type);
+ alignment = get_type_alignment(type);
}
- ir_mode *const mode = get_ir_mode_arithmetic(expression->base.type);
- symconst_symbol sym;
- sym.type_p = irtype;
- return new_SymConst(mode, sym, symconst_type_align);
+ dbg_info *dbgi = get_dbg_info(&expression->base.source_position);
+ ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
+ ir_tarval *tv = new_tarval_from_long(alignment, mode);
+ return new_d_Const(dbgi, tv);
}
static void init_ir_types(void);
-long fold_constant(const expression_t *expression)
+static ir_tarval *fold_constant_to_tarval(const expression_t *expression)
{
assert(is_type_valid(skip_typeref(expression->base.type)));
init_ir_types();
- assert(is_constant_expression(expression));
+ assert(is_constant_expression(expression) == EXPR_CLASS_CONSTANT);
ir_graph *old_current_ir_graph = current_ir_graph;
current_ir_graph = get_const_code_irg();
panic("couldn't fold constant");
}
- tarval *tv = get_Const_tarval(cnst);
+ constant_folding = constant_folding_old;
+
+ return get_Const_tarval(cnst);
+}
+
+long fold_constant_to_int(const expression_t *expression)
+{
+ if (expression->kind == EXPR_INVALID)
+ return 0;
+
+ ir_tarval *tv = fold_constant_to_tarval(expression);
if (!tarval_is_long(tv)) {
panic("result of constant folding is not integer");
}
- constant_folding = constant_folding_old;
-
return get_tarval_long(tv);
}
+bool fold_constant_to_bool(const expression_t *expression)
+{
+ if (expression->kind == EXPR_INVALID)
+ return false;
+ ir_tarval *tv = fold_constant_to_tarval(expression);
+ return !tarval_is_null(tv);
+}
+
static ir_node *conditional_to_firm(const conditional_expression_t *expression)
{
dbg_info *const dbgi = get_dbg_info(&expression->base.source_position);
/* first try to fold a constant condition */
- if (is_constant_expression(expression->condition)) {
- long val = fold_constant(expression->condition);
+ if (is_constant_expression(expression->condition) == EXPR_CLASS_CONSTANT) {
+ bool val = fold_constant_to_bool(expression->condition);
if (val) {
expression_t *true_expression = expression->true_expression;
if (true_expression == NULL)
}
}
- ir_node *cur_block = get_cur_block();
+ ir_node *const true_block = new_immBlock();
+ ir_node *const false_block = new_immBlock();
+ ir_node *const cond_expr = create_condition_evaluation(expression->condition, true_block, false_block);
+ mature_immBlock(true_block);
+ mature_immBlock(false_block);
- /* create the true block */
- ir_node *true_block = new_immBlock();
set_cur_block(true_block);
+ ir_node *true_val;
+ if (expression->true_expression != NULL) {
+ true_val = expression_to_firm(expression->true_expression);
+ } else if (cond_expr != NULL && get_irn_mode(cond_expr) != mode_b) {
+ true_val = cond_expr;
+ } else {
+ /* Condition ended with a short circuit (&&, ||, !) operation or a
+ * comparison. Generate a "1" as value for the true branch. */
+ true_val = new_Const(get_mode_one(mode_Is));
+ }
+ ir_node *const true_jmp = new_d_Jmp(dbgi);
- ir_node *true_val = expression->true_expression != NULL ?
- expression_to_firm(expression->true_expression) : NULL;
- ir_node *true_jmp = new_Jmp();
-
- /* create the false block */
- ir_node *false_block = new_immBlock();
set_cur_block(false_block);
-
- ir_node *false_val = expression_to_firm(expression->false_expression);
- ir_node *false_jmp = new_Jmp();
-
- /* create the condition evaluation */
- set_cur_block(cur_block);
- ir_node *const cond_expr = create_condition_evaluation(expression->condition, true_block, false_block);
- if (expression->true_expression == NULL) {
- if (cond_expr != NULL) {
- true_val = cond_expr;
- } else {
- /* Condition ended with a short circuit (&&, ||, !) operation.
- * Generate a "1" as value for the true branch. */
- true_val = new_Const(get_mode_one(mode_Is));
- }
- }
- mature_immBlock(true_block);
- mature_immBlock(false_block);
+ ir_node *const false_val = expression_to_firm(expression->false_expression);
+ ir_node *const false_jmp = new_d_Jmp(dbgi);
/* create the common block */
- ir_node *in_cf[2] = { true_jmp, false_jmp };
- new_Block(2, in_cf);
+ ir_node *const in_cf[2] = { true_jmp, false_jmp };
+ ir_node *const block = new_Block(lengthof(in_cf), in_cf);
+ set_cur_block(block);
/* TODO improve static semantics, so either both or no values are NULL */
if (true_val == NULL || false_val == NULL)
return NULL;
- ir_node *in[2] = { true_val, false_val };
- ir_mode *mode = get_irn_mode(true_val);
- assert(get_irn_mode(false_val) == mode);
- ir_node *val = new_d_Phi(dbgi, 2, in, mode);
+ ir_node *const in[2] = { true_val, false_val };
+ type_t *const type = skip_typeref(expression->base.type);
+ ir_mode *mode;
+ if (is_type_compound(type)) {
+ mode = mode_P;
+ } else {
+ mode = get_ir_mode_arithmetic(type);
+ }
+ ir_node *const val = new_d_Phi(dbgi, lengthof(in), in, mode);
return val;
}
}
make_const:;
- dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
- tarval *const tv = new_tarval_from_long(tc, mode_int);
+ dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
+ ir_tarval *const tv = new_tarval_from_long(tc, mode_int);
return new_d_Const(dbgi, tv);
}
ir_type *const method_type = get_ir_type(type);
int const n = get_method_n_params(method_type) - 1;
ir_entity *const parm_ent = get_method_value_param_ent(method_type, n);
- ir_node *const arg_base = get_irg_value_param_base(current_ir_graph);
+ ir_node *const frame = get_irg_frame(current_ir_graph);
dbg_info *const dbgi = get_dbg_info(&expr->base.source_position);
ir_node *const no_mem = new_NoMem();
ir_node *const arg_sel =
- new_d_simpleSel(dbgi, no_mem, arg_base, parm_ent);
-
- ir_node *const cnst = get_type_size(expr->parameter->base.type);
- ir_node *const add = new_d_Add(dbgi, arg_sel, cnst, mode_P_data);
+ new_d_simpleSel(dbgi, no_mem, frame, parm_ent);
+
+ type_t *const param_type = expr->parameter->base.type;
+ ir_node *const cnst = get_type_size_node(param_type);
+ ir_mode *const mode = get_irn_mode(cnst);
+ ir_node *const c1 = new_Const_long(mode, stack_param_align - 1);
+ ir_node *const c2 = new_d_Add(dbgi, cnst, c1, mode);
+ ir_node *const c3 = new_Const_long(mode, -(long)stack_param_align);
+ ir_node *const c4 = new_d_And(dbgi, c2, c3, mode);
+ ir_node *const add = new_d_Add(dbgi, arg_sel, c4, mode_P_data);
set_value_for_expression(expr->ap, add);
return NULL;
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);
+ ir_node *const cnst = get_type_size_node(expr->base.type);
+ ir_mode *const mode = get_irn_mode(cnst);
+ ir_node *const c1 = new_Const_long(mode, stack_param_align - 1);
+ ir_node *const c2 = new_d_Add(dbgi, cnst, c1, mode);
+ ir_node *const c3 = new_Const_long(mode, -(long)stack_param_align);
+ ir_node *const c4 = new_d_And(dbgi, c2, c3, mode);
+ ir_node *const add = new_d_Add(dbgi, ap, c4, mode_P_data);
set_value_for_expression_addr(ap_expr, add, ap_addr);
return res;
}
+/**
+ * Generate Firm for a va_copy expression.
+ */
+static ir_node *va_copy_expression_to_firm(const va_copy_expression_t *const expr)
+{
+ ir_node *const src = expression_to_firm(expr->src);
+ set_value_for_expression(expr->dst, src);
+ return NULL;
+}
+
static ir_node *dereference_addr(const unary_expression_t *const expression)
{
assert(expression->base.kind == EXPR_UNARY_DEREFERENCE);
static ir_node *builtin_constant_to_firm(
const builtin_constant_expression_t *expression)
{
- ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
- long v;
-
- if (is_constant_expression(expression->value)) {
- v = 1;
- } else {
- v = 0;
- }
- return new_Const_long(mode, v);
+ ir_mode *const mode = get_ir_mode_arithmetic(expression->base.type);
+ bool const v = is_constant_expression(expression->value) == EXPR_CLASS_CONSTANT;
+ return create_Const_from_bool(mode, v);
}
-static ir_node *builtin_prefetch_to_firm(
- const builtin_prefetch_expression_t *expression)
+static ir_node *builtin_types_compatible_to_firm(
+ const builtin_types_compatible_expression_t *expression)
{
- ir_node *adr = expression_to_firm(expression->adr);
- /* no Firm support for prefetch yet */
- (void) adr;
- return NULL;
+ type_t *const left = get_unqualified_type(skip_typeref(expression->left));
+ type_t *const right = get_unqualified_type(skip_typeref(expression->right));
+ bool const value = types_compatible(left, right);
+ ir_mode *const mode = get_ir_mode_arithmetic(expression->base.type);
+ return create_Const_from_bool(mode, value);
}
static ir_node *get_label_block(label_t *label)
* Pointer to a label. This is used for the
* GNU address-of-label extension.
*/
-static ir_node *label_address_to_firm(
- const label_address_expression_t *label)
+static ir_node *label_address_to_firm(const label_address_expression_t *label)
{
- ir_node *block = get_label_block(label->label);
- ir_label_t nr = get_Block_label(block);
+ dbg_info *dbgi = get_dbg_info(&label->base.source_position);
+ ir_node *block = get_label_block(label->label);
+ ir_entity *entity = create_Block_entity(block);
- if (nr == 0) {
- nr = get_irp_next_label_nr();
- set_Block_label(block, nr);
- }
symconst_symbol value;
- value.label = nr;
- return new_SymConst(mode_P_code, value, symconst_label);
-}
-
-static ir_node *builtin_symbol_to_firm(
- const builtin_symbol_expression_t *expression)
-{
- /* for gcc compatibility we have to produce (dummy) addresses for some
- * builtins */
- if (warning.other) {
- warningf(&expression->base.source_position,
- "taking address of builtin '%Y'", expression->symbol);
- }
-
- /* simply create a NULL pointer */
- ir_mode *mode = get_ir_mode_arithmetic(type_void_ptr);
- ir_node *res = new_Const_long(mode, 0);
-
- return res;
+ value.entity_p = entity;
+ return new_d_SymConst(dbgi, mode_P_code, value, symconst_addr_ent);
}
/**
#endif
switch (expression->kind) {
- case EXPR_CHARACTER_CONSTANT:
- return character_constant_to_firm(&expression->conste);
- case EXPR_WIDE_CHARACTER_CONSTANT:
- return wide_character_constant_to_firm(&expression->conste);
- case EXPR_CONST:
- return const_to_firm(&expression->conste);
+ EXPR_LITERAL_CASES
+ return literal_to_firm(&expression->literal);
case EXPR_STRING_LITERAL:
- return string_literal_to_firm(&expression->string);
+ return string_to_firm(&expression->base.source_position, "str.%u",
+ &expression->literal.value);
case EXPR_WIDE_STRING_LITERAL:
- return wide_string_literal_to_firm(&expression->wide_string);
+ return wide_string_literal_to_firm(&expression->string_literal);
case EXPR_REFERENCE:
return reference_expression_to_firm(&expression->reference);
case EXPR_REFERENCE_ENUM_VALUE:
return va_start_expression_to_firm(&expression->va_starte);
case EXPR_VA_ARG:
return va_arg_expression_to_firm(&expression->va_arge);
- case EXPR_BUILTIN_SYMBOL:
- return builtin_symbol_to_firm(&expression->builtin_symbol);
+ case EXPR_VA_COPY:
+ return va_copy_expression_to_firm(&expression->va_copye);
case EXPR_BUILTIN_CONSTANT_P:
return builtin_constant_to_firm(&expression->builtin_constant);
- case EXPR_BUILTIN_PREFETCH:
- return builtin_prefetch_to_firm(&expression->builtin_prefetch);
+ case EXPR_BUILTIN_TYPES_COMPATIBLE_P:
+ return builtin_types_compatible_to_firm(&expression->builtin_types_compatible);
case EXPR_OFFSETOF:
return offsetof_to_firm(&expression->offsetofe);
case EXPR_COMPOUND_LITERAL:
panic("invalid expression found");
}
+/**
+ * Check if a given expression is a GNU __builtin_expect() call.
+ */
static bool is_builtin_expect(const expression_t *expression)
{
if (expression->kind != EXPR_CALL)
return false;
expression_t *function = expression->call.function;
- if (function->kind != EXPR_BUILTIN_SYMBOL)
+ if (function->kind != EXPR_REFERENCE)
return false;
- if (function->builtin_symbol.symbol->ID != T___builtin_expect)
+ reference_expression_t *ref = &function->reference;
+ if (ref->entity->kind != ENTITY_FUNCTION ||
+ ref->entity->function.btk != bk_gnu_builtin_expect)
return false;
return true;
return res;
}
- if (is_constant_expression(expression)) {
+ if (is_constant_expression(expression) == EXPR_CLASS_CONSTANT) {
+ bool const constant_folding_old = constant_folding;
+ constant_folding = true;
ir_node *res = _expression_to_firm(expression);
+ constant_folding = constant_folding_old;
ir_mode *mode = get_ir_mode_arithmetic(expression->base.type);
- assert(is_Const(res));
- if (is_Const_null(res)) {
- return new_Const_long(mode, 0);
- } else {
- return new_Const_long(mode, 1);
- }
+ assert(is_Const(res));
+ return create_Const_from_bool(mode, !is_Const_null(res));
}
/* we have to produce a 0/1 from the mode_b expression */
/* set branch prediction info based on __builtin_expect */
if (is_builtin_expect(expression) && is_Cond(cond)) {
call_argument_t *argument = expression->call.arguments->next;
- if (is_constant_expression(argument->expression)) {
- long cnst = fold_constant(argument->expression);
+ if (is_constant_expression(argument->expression) == EXPR_CLASS_CONSTANT) {
+ bool cnst = fold_constant_to_bool(argument->expression);
cond_jmp_predicate pred;
- if (cnst == 0) {
+ if (cnst == false) {
pred = COND_JMP_PRED_FALSE;
} else {
pred = COND_JMP_PRED_TRUE;
return cond_expr;
}
-
static void create_variable_entity(entity_t *variable,
declaration_kind_t declaration_kind,
ir_type *parent_type)
{
assert(variable->kind == ENTITY_VARIABLE);
type_t *type = skip_typeref(variable->declaration.type);
- type = get_aligned_type(type, variable->variable.alignment);
- ident *const id = new_id_from_str(variable->base.symbol->string);
- ir_type *const irtype = get_ir_type(type);
- dbg_info *const dbgi = get_dbg_info(&variable->base.source_position);
+ ident *const id = new_id_from_str(variable->base.symbol->string);
+ ir_type *const irtype = get_ir_type(type);
+ dbg_info *const dbgi = get_dbg_info(&variable->base.source_position);
+ ir_entity *const irentity = new_d_entity(parent_type, id, irtype, dbgi);
+ unsigned alignment = variable->declaration.alignment;
- ir_entity *const irentity = new_d_entity(parent_type, id, irtype, dbgi);
+ set_entity_alignment(irentity, alignment);
- handle_gnu_attributes_ent(irentity, variable);
+ handle_decl_modifiers(irentity, variable);
variable->declaration.kind = (unsigned char) declaration_kind;
variable->variable.v.entity = irentity;
- set_entity_variability(irentity, variability_uninitialized);
set_entity_ld_ident(irentity, create_ld_ident(variable));
- if (parent_type == get_tls_type())
- set_entity_allocation(irentity, allocation_automatic);
- else if (declaration_kind == DECLARATION_KIND_GLOBAL_VARIABLE)
- set_entity_allocation(irentity, allocation_static);
-
if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
set_entity_volatility(irentity, volatility_is_volatile);
}
}
assert(iter != NULL);
+ /* revert previous initialisations of other union elements */
+ if (type->kind == TYPE_COMPOUND_UNION) {
+ ir_initializer_t *initializer = top->initializer;
+ if (initializer != NULL
+ && get_initializer_kind(initializer) == IR_INITIALIZER_COMPOUND) {
+ /* are we writing to a new element? */
+ ir_initializer_t *oldi
+ = get_initializer_compound_value(initializer, index);
+ if (get_initializer_kind(oldi) == IR_INITIALIZER_NULL) {
+ /* clear initializer */
+ size_t len
+ = get_initializer_compound_n_entries(initializer);
+ ir_initializer_t *nulli = get_initializer_null();
+ for (size_t i = 0; i < len; ++i) {
+ set_initializer_compound_value(initializer, i,
+ nulli);
+ }
+ }
+ }
+ }
+
top->type = orig_type;
top->compound_entry = iter;
top->index = index;
assert(designator->array_index != NULL);
assert(is_type_array(type));
- long index = fold_constant(array_index);
+ long index = fold_constant_to_int(array_index);
assert(index >= 0);
#ifndef NDEBUG
if (type->array.size_constant) {
type_t *type = skip_typeref(top->type);
if (is_type_union(type)) {
+ /* only the first element is initialized in unions */
top->compound_entry = NULL;
} else if (is_type_struct(type)) {
entity_t *entry = top->compound_entry;
/* we're past the last member of the current sub-aggregate, try if we
* can ascend in the type hierarchy and continue with another subobject */
- size_t len = ARR_LEN(path->path);
+ size_t len = ARR_LEN(path->path);
if (len > 1) {
ascend_from_subtype(path);
if (is_type_compound(initializer->value->base.type)) {
panic("initializer creation for compounds not implemented yet");
}
- ir_node *value = expression_to_firm(initializer->value);
- type_t *type = initializer->value->base.type;
+ type_t *type = initializer->value->base.type;
+ expression_t *expr = initializer->value;
+ if (initializer_use_bitfield_basetype) {
+ type_t *skipped = skip_typeref(type);
+ if (skipped->kind == TYPE_BITFIELD) {
+ /* remove the bitfield cast... */
+ assert(expr->kind == EXPR_UNARY_CAST_IMPLICIT);
+ expr = expr->unary.value;
+ type = skipped->bitfield.base_type;
+ }
+ }
+ ir_node *value = expression_to_firm(expr);
ir_mode *mode = get_ir_mode_storage(type);
value = create_conv(NULL, value, mode);
return create_initializer_const(value);
if (i < string_len)
c = string[i];
- tarval *tv = new_tarval_from_long(c, mode);
+ ir_tarval *tv = new_tarval_from_long(c, mode);
ir_initializer_t *char_initializer = create_initializer_tarval(tv);
set_initializer_compound_value(irinitializer, i, char_initializer);
static ir_initializer_t *create_ir_initializer_wide_string(
const initializer_wide_string_t *initializer, type_t *type)
{
- size_t string_len = initializer->string.size;
assert(type->kind == TYPE_ARRAY);
assert(type->array.size_constant);
size_t len = type->array.size;
+ size_t string_len = wstrlen(&initializer->string);
ir_initializer_t *irinitializer = create_initializer_compound(len);
- const wchar_rep_t *string = initializer->string.begin;
- ir_mode *mode = get_type_mode(ir_type_wchar_t);
+ const char *p = initializer->string.begin;
+ ir_mode *mode = get_type_mode(ir_type_wchar_t);
for (size_t i = 0; i < len; ++i) {
- wchar_rep_t c = 0;
+ utf32 c = 0;
if (i < string_len) {
- c = string[i];
+ c = read_utf8_char(&p);
}
- tarval *tv = new_tarval_from_long(c, mode);
+ ir_tarval *tv = new_tarval_from_long(c, mode);
ir_initializer_t *char_initializer = create_initializer_tarval(tv);
set_initializer_compound_value(irinitializer, i, char_initializer);
panic("unknown initializer");
}
-static void create_dynamic_null_initializer(ir_type *type, dbg_info *dbgi,
+/** ANSI C §6.7.8:21: If there are fewer initializers [..] than there
+ * are elements [...] the remainder of the aggregate shall be initialized
+ * implicitly the same as objects that have static storage duration. */
+static void create_dynamic_null_initializer(ir_entity *entity, dbg_info *dbgi,
ir_node *base_addr)
{
- if (is_atomic_type(type)) {
- ir_mode *mode = get_type_mode(type);
- tarval *zero = get_mode_null(mode);
- ir_node *cnst = new_d_Const(dbgi, zero);
-
- /* TODO: bitfields */
- ir_node *mem = get_store();
- ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst, 0);
- ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
- set_store(proj_m);
- } else {
- assert(is_compound_type(type));
+ /* for unions we must NOT do anything for null initializers */
+ ir_type *owner = get_entity_owner(entity);
+ if (is_Union_type(owner)) {
+ return;
+ }
- int n_members;
- 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);
+ ir_type *ent_type = get_entity_type(entity);
+ /* create sub-initializers for a compound type */
+ if (is_compound_type(ent_type)) {
+ unsigned n_members = get_compound_n_members(ent_type);
+ for (unsigned n = 0; n < n_members; ++n) {
+ ir_entity *member = get_compound_member(ent_type, n);
+ ir_node *addr = new_d_simpleSel(dbgi, new_NoMem(), base_addr,
+ member);
+ create_dynamic_null_initializer(member, dbgi, addr);
}
+ return;
+ }
+ if (is_Array_type(ent_type)) {
+ assert(has_array_upper_bound(ent_type, 0));
+ long n = get_array_upper_bound_int(ent_type, 0);
+ for (long i = 0; i < n; ++i) {
+ ir_tarval *index_tv = new_tarval_from_long(i, mode_uint);
+ ir_node *cnst = new_d_Const(dbgi, index_tv);
+ ir_node *in[1] = { cnst };
+ ir_entity *arrent = get_array_element_entity(ent_type);
+ ir_node *addr = new_d_Sel(dbgi, new_NoMem(), base_addr, 1, in,
+ arrent);
+ create_dynamic_null_initializer(arrent, dbgi, addr);
+ }
+ return;
+ }
- for (int i = 0; i < n_members; ++i) {
- ir_node *addr;
- ir_type *irtype;
- 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, index_tv);
- ir_node *in[1] = { cnst };
- irtype = get_array_element_type(type);
- addr = new_d_Sel(dbgi, new_NoMem(), base_addr, 1, in, entity);
- } else {
- ir_entity *member = get_compound_member(type, i);
-
- irtype = get_entity_type(member);
- addr = new_d_simpleSel(dbgi, new_NoMem(), base_addr, member);
- }
+ ir_mode *value_mode = get_type_mode(ent_type);
+ ir_node *node = new_Const(get_mode_null(value_mode));
- create_dynamic_null_initializer(irtype, dbgi, addr);
- }
+ /* is it a bitfield type? */
+ if (is_Primitive_type(ent_type) &&
+ get_primitive_base_type(ent_type) != NULL) {
+ bitfield_store_to_firm(dbgi, entity, base_addr, node, false);
+ return;
}
+
+ ir_node *mem = get_store();
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, node, cons_none);
+ ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
+ set_store(proj_m);
}
static void create_dynamic_initializer_sub(ir_initializer_t *initializer,
ir_entity *entity, ir_type *type, dbg_info *dbgi, ir_node *base_addr)
{
switch(get_initializer_kind(initializer)) {
- case IR_INITIALIZER_NULL: {
- create_dynamic_null_initializer(type, dbgi, base_addr);
+ case IR_INITIALIZER_NULL:
+ create_dynamic_null_initializer(entity, dbgi, base_addr);
return;
- }
case IR_INITIALIZER_CONST: {
ir_node *node = get_initializer_const_value(initializer);
- ir_mode *mode = get_irn_mode(node);
ir_type *ent_type = get_entity_type(entity);
/* is it a bitfield type? */
return;
}
- assert(get_type_mode(type) == mode);
+ assert(get_type_mode(type) == get_irn_mode(node));
ir_node *mem = get_store();
- ir_node *store = new_d_Store(dbgi, mem, base_addr, node, 0);
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, node, cons_none);
ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
set_store(proj_m);
return;
}
case IR_INITIALIZER_TARVAL: {
- tarval *tv = get_initializer_tarval_value(initializer);
- ir_mode *mode = get_tarval_mode(tv);
- ir_node *cnst = new_d_Const(dbgi, tv);
- ir_type *ent_type = get_entity_type(entity);
+ ir_tarval *tv = get_initializer_tarval_value(initializer);
+ ir_node *cnst = new_d_Const(dbgi, tv);
+ ir_type *ent_type = get_entity_type(entity);
/* is it a bitfield type? */
if (is_Primitive_type(ent_type) &&
return;
}
- assert(get_type_mode(type) == mode);
+ assert(get_type_mode(type) == get_tarval_mode(tv));
ir_node *mem = get_store();
- ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst, 0);
+ ir_node *store = new_d_Store(dbgi, mem, base_addr, cnst, cons_none);
ir_node *proj_m = new_Proj(store, mode_M, pn_Store_M);
set_store(proj_m);
return;
}
case IR_INITIALIZER_COMPOUND: {
- assert(is_compound_type(type));
+ assert(is_compound_type(type) || is_Array_type(type));
int n_members;
if (is_Array_type(type)) {
assert(has_array_upper_bound(type, 0));
ir_type *irtype;
ir_entity *sub_entity;
if (is_Array_type(type)) {
- tarval *index_tv = new_tarval_from_long(i, mode_uint);
+ ir_tarval *index_tv = new_tarval_from_long(i, mode_uint);
ir_node *cnst = new_d_Const(dbgi, index_tv);
ir_node *in[1] = { cnst };
irtype = get_array_element_type(type);
static void create_dynamic_initializer(ir_initializer_t *initializer,
dbg_info *dbgi, ir_entity *entity)
{
- ir_node *frame = get_local_frame(entity);
+ ir_node *frame = get_irg_frame(current_ir_graph);
ir_node *base_addr = new_d_simpleSel(dbgi, new_NoMem(), frame, entity);
ir_type *type = get_entity_type(entity);
return;
}
- if (!is_constant_initializer(initializer)) {
+ if (is_constant_initializer(initializer) == EXPR_CLASS_VARIABLE) {
+ bool old_initializer_use_bitfield_basetype
+ = initializer_use_bitfield_basetype;
+ initializer_use_bitfield_basetype = true;
ir_initializer_t *irinitializer
= create_ir_initializer(initializer, type);
+ initializer_use_bitfield_basetype
+ = old_initializer_use_bitfield_basetype;
create_dynamic_initializer(irinitializer, dbgi, entity);
return;
ir_entity *const init_entity = new_d_entity(global_type, id, irtype, dbgi);
set_entity_ld_ident(init_entity, id);
- set_entity_variability(init_entity, variability_initialized);
- set_entity_visibility(init_entity, visibility_local);
- set_entity_allocation(init_entity, allocation_static);
+ set_entity_visibility(init_entity, ir_visibility_private);
+ add_entity_linkage(init_entity, IR_LINKAGE_CONSTANT);
set_entity_initializer(init_entity, irinitializer);
ir_node *const src_addr = create_symconst(dbgi, mode_P_data, init_entity);
ir_node *const copyb = new_d_CopyB(dbgi, memory, addr, src_addr, irtype);
- ir_node *const copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M_regular);
+ ir_node *const copyb_mem = new_Proj(copyb, mode_M, pn_CopyB_M);
set_store(copyb_mem);
}
ir_entity *irentity = entity->variable.v.entity;
type_t *type = entity->declaration.type;
- type = get_aligned_type(type, entity->variable.alignment);
create_local_initializer(initializer, dbgi, irentity, type);
}
ir_entity *irentity = entity->variable.v.entity;
- if (tq & TYPE_QUALIFIER_CONST) {
- set_entity_variability(irentity, variability_constant);
- } else {
- set_entity_variability(irentity, variability_initialized);
+ if (tq & TYPE_QUALIFIER_CONST
+ && get_entity_owner(irentity) != get_tls_type()) {
+ add_entity_linkage(irentity, IR_LINKAGE_CONSTANT);
}
set_atomic_ent_value(irentity, value);
}
= create_ir_initializer(initializer, type);
if (tq & TYPE_QUALIFIER_CONST) {
- set_entity_variability(irentity, variability_constant);
- } else {
- set_entity_variability(irentity, variability_initialized);
+ add_entity_linkage(irentity, IR_LINKAGE_CONSTANT);
}
set_entity_initializer(irentity, irinitializer);
}
ir_type *el_type = get_ir_type(type->array.element_type);
/* make sure size_node is calculated */
- get_type_size(type);
+ get_type_size_node(type);
ir_node *elems = type->array.size_node;
ir_node *mem = get_store();
ir_node *alloc = new_d_Alloc(dbgi, mem, elems, el_type, stack_alloc);
assert(entity->kind == ENTITY_VARIABLE);
assert(entity->declaration.kind == DECLARATION_KIND_UNKNOWN);
- type_t *type = skip_typeref(entity->declaration.type);
- type = get_aligned_type(type, entity->variable.alignment);
-
- ir_type *const var_type = entity->variable.thread_local ?
+ type_t *type = skip_typeref(entity->declaration.type);
+ ir_type *const var_type = entity->variable.thread_local ?
get_tls_type() : get_glob_type();
- ir_type *const irtype = get_ir_type(type);
- dbg_info *const dbgi = get_dbg_info(&entity->base.source_position);
+ ir_type *const irtype = get_ir_type(type);
+ dbg_info *const dbgi = get_dbg_info(&entity->base.source_position);
size_t l = strlen(entity->base.symbol->string);
char buf[l + sizeof(".%u")];
snprintf(buf, sizeof(buf), "%s.%%u", entity->base.symbol->string);
- ident *const id = id_unique(buf);
-
+ ident *const id = id_unique(buf);
ir_entity *const irentity = new_d_entity(var_type, id, irtype, dbgi);
if (type->base.qualifiers & TYPE_QUALIFIER_VOLATILE) {
entity->variable.v.entity = irentity;
set_entity_ld_ident(irentity, id);
- set_entity_variability(irentity, variability_uninitialized);
- set_entity_visibility(irentity, visibility_local);
- set_entity_allocation(irentity, entity->variable.thread_local ?
- allocation_automatic : allocation_static);
+ set_entity_visibility(irentity, ir_visibility_local);
ir_graph *const old_current_ir_graph = current_ir_graph;
current_ir_graph = get_const_code_irg();
static void create_global_variable(entity_t *entity)
{
+ ir_linkage linkage = IR_LINKAGE_DEFAULT;
+ ir_visibility visibility = ir_visibility_default;
+ ir_entity *irentity;
assert(entity->kind == ENTITY_VARIABLE);
- ir_visibility vis;
switch ((storage_class_tag_t)entity->declaration.storage_class) {
- case STORAGE_CLASS_STATIC: vis = visibility_local; break;
- case STORAGE_CLASS_EXTERN: vis = visibility_external_allocated; break;
- case STORAGE_CLASS_NONE: vis = visibility_external_visible; break;
-
- default: panic("Invalid storage class for global variable");
+ case STORAGE_CLASS_EXTERN: visibility = ir_visibility_external; break;
+ case STORAGE_CLASS_STATIC: visibility = ir_visibility_local; break;
+ case STORAGE_CLASS_NONE:
+ visibility = ir_visibility_default;
+ /* uninitialized globals get merged in C */
+ if (entity->variable.initializer == NULL)
+ linkage |= IR_LINKAGE_MERGE;
+ break;
+ case STORAGE_CLASS_TYPEDEF:
+ case STORAGE_CLASS_AUTO:
+ case STORAGE_CLASS_REGISTER:
+ panic("invalid storage class for global var");
}
- ir_type *var_type = entity->variable.thread_local ?
- get_tls_type() : get_glob_type();
- create_variable_entity(entity,
- DECLARATION_KIND_GLOBAL_VARIABLE, var_type);
- set_entity_visibility(entity->variable.v.entity, vis);
+ ir_type *var_type = get_glob_type();
+ if (entity->variable.thread_local) {
+ var_type = get_tls_type();
+ /* LINKAGE_MERGE not supported by current linkers */
+ linkage &= ~IR_LINKAGE_MERGE;
+ }
+ create_variable_entity(entity, DECLARATION_KIND_GLOBAL_VARIABLE, var_type);
+ irentity = entity->variable.v.entity;
+ add_entity_linkage(irentity, linkage);
+ set_entity_visibility(irentity, visibility);
}
static void create_local_declaration(entity_t *entity)
switch ((storage_class_tag_t) entity->declaration.storage_class) {
case STORAGE_CLASS_STATIC:
- create_local_static_variable(entity);
+ if (entity->kind == ENTITY_FUNCTION) {
+ (void)get_function_entity(entity, NULL);
+ } else {
+ create_local_static_variable(entity);
+ }
return;
case STORAGE_CLASS_EXTERN:
if (entity->kind == ENTITY_FUNCTION) {
assert(entity->function.statement == NULL);
- get_function_entity(entity);
+ (void)get_function_entity(entity, NULL);
} else {
create_global_variable(entity);
create_variable_initializer(entity);
case STORAGE_CLASS_REGISTER:
if (entity->kind == ENTITY_FUNCTION) {
if (entity->function.statement != NULL) {
- get_function_entity(entity);
+ ir_type *owner = get_irg_frame_type(current_ir_graph);
+ (void)get_function_entity(entity, owner);
entity->declaration.kind = DECLARATION_KIND_INNER_FUNCTION;
enqueue_inner_function(entity);
} else {
- get_function_entity(entity);
+ (void)get_function_entity(entity, NULL);
}
} else {
create_local_variable(entity);
if (entity->base.symbol == NULL)
return;
+ // no need to emit code in dead blocks
+ if (entity->declaration.storage_class != STORAGE_CLASS_STATIC
+ && get_cur_block() == NULL)
+ return;
+
switch ((declaration_kind_t) entity->declaration.kind) {
case DECLARATION_KIND_LOCAL_VARIABLE:
case DECLARATION_KIND_LOCAL_VARIABLE_ENTITY:
static void declaration_statement_to_firm(declaration_statement_t *statement)
{
- entity_t * entity = statement->declarations_begin;
- entity_t *const last = statement->declarations_end;
- if (entity != NULL) {
- for ( ;; entity = entity->base.next) {
- if (is_declaration(entity)) {
- initialize_local_declaration(entity);
- } else if (entity->kind == ENTITY_TYPEDEF) {
- type_t *const type = skip_typeref(entity->typedefe.type);
- if (is_type_array(type) && type->array.is_vla)
- get_vla_size(&type->array);
- }
- if (entity == last)
- break;
+ entity_t *entity = statement->declarations_begin;
+ if (entity == NULL)
+ return;
+
+ entity_t *const last = statement->declarations_end;
+ for ( ;; entity = entity->base.next) {
+ if (is_declaration(entity)) {
+ initialize_local_declaration(entity);
+ } else if (entity->kind == ENTITY_TYPEDEF) {
+ /* §6.7.7:3 Any array size expressions associated with variable length
+ * array declarators are evaluated each time the declaration of the
+ * typedef name is reached in the order of execution. */
+ type_t *const type = skip_typeref(entity->typedefe.type);
+ if (is_type_array(type) && type->array.is_vla)
+ get_vla_size(&type->array);
}
+ if (entity == last)
+ break;
}
}
static void if_statement_to_firm(if_statement_t *statement)
{
- ir_node *cur_block = get_cur_block();
-
- ir_node *fallthrough_block = NULL;
-
- /* the true (blocks) */
- ir_node *true_block = NULL;
- if (statement->true_statement != NULL) {
- true_block = new_immBlock();
- set_cur_block(true_block);
- statement_to_firm(statement->true_statement);
- if (get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- if (fallthrough_block == NULL)
- fallthrough_block = new_immBlock();
- add_immBlock_pred(fallthrough_block, jmp);
- }
+ /* Create the condition. */
+ ir_node *true_block = NULL;
+ ir_node *false_block = NULL;
+ if (get_cur_block() != NULL) {
+ true_block = new_immBlock();
+ false_block = new_immBlock();
+ create_condition_evaluation(statement->condition, true_block, false_block);
+ mature_immBlock(true_block);
}
- /* the false (blocks) */
- ir_node *false_block = NULL;
+ /* Create the false statement.
+ * Handle false before true, so if no false statement is present, then the
+ * empty false block is reused as fallthrough block. */
+ ir_node *fallthrough_block = NULL;
if (statement->false_statement != NULL) {
- false_block = new_immBlock();
+ if (false_block != NULL) {
+ mature_immBlock(false_block);
+ }
set_cur_block(false_block);
-
statement_to_firm(statement->false_statement);
if (get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- if (fallthrough_block == NULL)
- fallthrough_block = new_immBlock();
- add_immBlock_pred(fallthrough_block, jmp);
+ fallthrough_block = new_immBlock();
+ add_immBlock_pred(fallthrough_block, new_Jmp());
}
+ } else {
+ fallthrough_block = false_block;
}
- /* create the condition */
- 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;
+ /* Create the true statement. */
+ set_cur_block(true_block);
+ statement_to_firm(statement->true_statement);
+ if (get_cur_block() != NULL) {
+ if (fallthrough_block == NULL) {
+ fallthrough_block = new_immBlock();
}
-
- set_cur_block(cur_block);
- create_condition_evaluation(statement->condition, true_block,
- false_block);
+ add_immBlock_pred(fallthrough_block, new_Jmp());
}
- mature_immBlock(true_block);
- if (false_block != fallthrough_block && false_block != NULL) {
- mature_immBlock(false_block);
- }
+ /* Handle the block after the if-statement. */
if (fallthrough_block != NULL) {
mature_immBlock(fallthrough_block);
}
-
set_cur_block(fallthrough_block);
}
-static void while_statement_to_firm(while_statement_t *statement)
+/* Create a jump node which jumps into target_block, if the current block is
+ * reachable. */
+static void jump_if_reachable(ir_node *const target_block)
{
- ir_node *jmp = NULL;
- if (get_cur_block() != NULL) {
- jmp = new_Jmp();
- }
-
- /* create the header block */
- ir_node *header_block = new_immBlock();
- if (jmp != NULL) {
- add_immBlock_pred(header_block, jmp);
- }
-
- /* the loop body */
- ir_node *old_continue_label = continue_label;
- ir_node *old_break_label = break_label;
- continue_label = header_block;
- break_label = NULL;
-
- ir_node *body_block = new_immBlock();
- set_cur_block(body_block);
- statement_to_firm(statement->body);
- ir_node *false_block = break_label;
-
- 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);
+ add_immBlock_pred(target_block, new_Jmp());
}
+}
- /* 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);
+static void while_statement_to_firm(while_statement_t *statement)
+{
+ /* Create the header block */
+ ir_node *const header_block = new_immBlock();
+ jump_if_reachable(header_block);
+
+ /* Create the condition. */
+ ir_node * body_block;
+ ir_node * false_block;
+ expression_t *const cond = statement->condition;
+ if (is_constant_expression(cond) == EXPR_CLASS_CONSTANT &&
+ fold_constant_to_bool(cond)) {
+ /* Shortcut for while (true). */
+ body_block = header_block;
+ false_block = NULL;
- keep_alive(body_block);
- keep_all_memory(body_block);
- set_cur_block(body_block);
+ keep_alive(header_block);
+ keep_all_memory(header_block);
} else {
- if (false_block == NULL) {
- false_block = new_immBlock();
- }
+ body_block = new_immBlock();
+ false_block = new_immBlock();
- /* create the condition */
set_cur_block(header_block);
-
- create_condition_evaluation(statement->condition, body_block,
- false_block);
+ create_condition_evaluation(cond, body_block, false_block);
+ mature_immBlock(body_block);
}
- mature_immBlock(body_block);
+ ir_node *const old_continue_label = continue_label;
+ ir_node *const old_break_label = break_label;
+ continue_label = header_block;
+ break_label = false_block;
+
+ /* Create the loop body. */
+ set_cur_block(body_block);
+ statement_to_firm(statement->body);
+ jump_if_reachable(header_block);
+
mature_immBlock(header_block);
+ assert(false_block == NULL || false_block == break_label);
+ false_block = break_label;
if (false_block != NULL) {
mature_immBlock(false_block);
}
-
set_cur_block(false_block);
+
+ assert(continue_label == header_block);
+ continue_label = old_continue_label;
+ break_label = old_break_label;
}
-static void do_while_statement_to_firm(do_while_statement_t *statement)
+static ir_node *get_break_label(void)
{
- ir_node *jmp = NULL;
- if (get_cur_block() != NULL) {
- jmp = new_Jmp();
+ if (break_label == NULL) {
+ break_label = new_immBlock();
}
+ return break_label;
+}
+static void do_while_statement_to_firm(do_while_statement_t *statement)
+{
/* create the header block */
ir_node *header_block = new_immBlock();
/* the loop body */
ir_node *body_block = new_immBlock();
- if (jmp != NULL) {
- add_immBlock_pred(body_block, jmp);
- }
+ jump_if_reachable(body_block);
ir_node *old_continue_label = continue_label;
ir_node *old_break_label = break_label;
set_cur_block(body_block);
statement_to_firm(statement->body);
- ir_node *false_block = break_label;
+ ir_node *const false_block = get_break_label();
assert(continue_label == header_block);
continue_label = old_continue_label;
break_label = old_break_label;
- if (get_cur_block() != NULL) {
- ir_node *body_jmp = new_Jmp();
- add_immBlock_pred(header_block, body_jmp);
- mature_immBlock(header_block);
- }
-
- if (false_block == NULL) {
- false_block = new_immBlock();
- }
+ jump_if_reachable(header_block);
/* create the condition */
+ mature_immBlock(header_block);
set_cur_block(header_block);
create_condition_evaluation(statement->condition, body_block, false_block);
mature_immBlock(body_block);
- mature_immBlock(header_block);
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 */
entity_t *entity = statement->scope.entities;
for ( ; entity != NULL; entity = entity->base.next) {
if (statement->initialisation != NULL) {
expression_to_firm(statement->initialisation);
}
-
- jmp = new_Jmp();
}
-
- /* create the step block */
- ir_node *const step_block = new_immBlock();
- set_cur_block(step_block);
- if (statement->step != NULL) {
- expression_to_firm(statement->step);
- }
- ir_node *const step_jmp = new_Jmp();
-
- /* create the header block */
+ /* Create the header block */
ir_node *const header_block = new_immBlock();
- set_cur_block(header_block);
- if (jmp != NULL) {
- add_immBlock_pred(header_block, jmp);
- }
- add_immBlock_pred(header_block, step_jmp);
-
- /* the false block */
- ir_node *const false_block = new_immBlock();
+ jump_if_reachable(header_block);
- /* the loop body */
+ /* Create the condition. */
ir_node *body_block;
- if (statement->body != NULL) {
- ir_node *const old_continue_label = continue_label;
- ir_node *const old_break_label = break_label;
- continue_label = step_block;
- break_label = false_block;
-
- body_block = new_immBlock();
- set_cur_block(body_block);
- statement_to_firm(statement->body);
-
- assert(continue_label == step_block);
- assert(break_label == false_block);
- continue_label = old_continue_label;
- break_label = old_break_label;
+ ir_node *false_block;
+ if (statement->condition != NULL) {
+ body_block = new_immBlock();
+ false_block = new_immBlock();
- if (get_cur_block() != NULL) {
- jmp = new_Jmp();
- add_immBlock_pred(step_block, jmp);
- }
+ set_cur_block(header_block);
+ create_condition_evaluation(statement->condition, body_block, false_block);
+ mature_immBlock(body_block);
} else {
- body_block = step_block;
- }
+ /* for-ever. */
+ body_block = header_block;
+ false_block = NULL;
- /* create the condition */
- set_cur_block(header_block);
- if (statement->condition != NULL) {
- create_condition_evaluation(statement->condition, body_block,
- false_block);
- } else {
keep_alive(header_block);
keep_all_memory(header_block);
- jmp = new_Jmp();
- add_immBlock_pred(body_block, jmp);
}
- mature_immBlock(body_block);
- mature_immBlock(false_block);
- mature_immBlock(step_block);
- mature_immBlock(header_block);
- mature_immBlock(false_block);
+ /* Create the step block, if necessary. */
+ ir_node * step_block = header_block;
+ expression_t *const step = statement->step;
+ if (step != NULL) {
+ step_block = new_immBlock();
+ }
+
+ ir_node *const old_continue_label = continue_label;
+ ir_node *const old_break_label = break_label;
+ continue_label = step_block;
+ break_label = false_block;
+
+ /* Create the loop body. */
+ set_cur_block(body_block);
+ statement_to_firm(statement->body);
+ jump_if_reachable(step_block);
+
+ /* Create the step code. */
+ if (step != NULL) {
+ mature_immBlock(step_block);
+ set_cur_block(step_block);
+ expression_to_firm(step);
+ jump_if_reachable(header_block);
+ }
+ mature_immBlock(header_block);
+ assert(false_block == NULL || false_block == break_label);
+ false_block = break_label;
+ if (false_block != NULL) {
+ mature_immBlock(false_block);
+ }
set_cur_block(false_block);
+
+ assert(continue_label == step_block);
+ continue_label = old_continue_label;
+ break_label = old_break_label;
}
static void create_jump_statement(const statement_t *statement,
set_cur_block(NULL);
}
-static ir_node *get_break_label(void)
-{
- if (break_label == NULL) {
- break_label = new_immBlock();
- }
- return break_label;
-}
-
static void switch_statement_to_firm(switch_statement_t *statement)
{
- dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
+ ir_node *first_block = NULL;
+ dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
+ ir_node *cond = NULL;
- ir_node *expression = expression_to_firm(statement->expression);
- ir_node *cond = new_d_Cond(dbgi, expression);
+ if (get_cur_block() != NULL) {
+ ir_node *expression = expression_to_firm(statement->expression);
+ cond = new_d_Cond(dbgi, expression);
+ first_block = get_cur_block();
+ }
set_cur_block(NULL);
current_switch = statement;
/* determine a free number for the default label */
- unsigned long num_cases = 0;
- long def_nr = 0;
+ unsigned long num_cases = 0;
+ long default_proj_nr = 0;
for (case_label_statement_t *l = statement->first_case; l != NULL; l = l->next) {
if (l->expression == NULL) {
/* default case */
}
if (l->last_case >= l->first_case)
num_cases += l->last_case - l->first_case + 1;
- if (l->last_case > def_nr)
- def_nr = l->last_case;
+ if (l->last_case > default_proj_nr)
+ default_proj_nr = l->last_case;
}
- if (def_nr == INT_MAX) {
- /* Bad: an overflow will occurr, we cannot be sure that the
+ if (default_proj_nr == INT_MAX) {
+ /* Bad: an overflow will occur, we cannot be sure that the
* maximum + 1 is a free number. Scan the values a second
* time to find a free number.
*/
unsigned char *bits = xmalloc((num_cases + 7) >> 3);
- memset(bits, 0, (num_cases + 7) >> 3);
+ memset(bits, 0, (num_cases + 7) >> 3);
for (case_label_statement_t *l = statement->first_case; l != NULL; l = l->next) {
if (l->expression == NULL) {
/* default case */
}
}
/* We look at the first num_cases constants:
- * Either they are densed, so we took the last (num_cases)
- * one, or they are non densed, so we will find one free
+ * Either they are dense, so we took the last (num_cases)
+ * one, or they are not dense, so we will find one free
* there...
*/
unsigned long i;
break;
free(bits);
- def_nr = i;
+ default_proj_nr = i;
} else {
- ++def_nr;
+ ++default_proj_nr;
}
- statement->default_proj_nr = def_nr;
-
- if (statement->body != NULL) {
- statement_to_firm(statement->body);
+ statement->default_proj_nr = default_proj_nr;
+ /* safety check: cond might already be folded to a Bad */
+ if (cond != NULL && is_Cond(cond)) {
+ set_Cond_default_proj(cond, default_proj_nr);
}
- if (get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(get_break_label(), jmp);
- }
+ statement_to_firm(statement->body);
- if (!saw_default_label) {
- set_cur_block(get_nodes_block(cond));
- ir_node *const proj = new_d_defaultProj(dbgi, cond,
- statement->default_proj_nr);
+ jump_if_reachable(get_break_label());
+
+ if (!saw_default_label && first_block != NULL) {
+ set_cur_block(first_block);
+ ir_node *const proj = new_d_Proj(dbgi, cond, mode_X, default_proj_nr);
add_immBlock_pred(get_break_label(), proj);
}
if (statement->is_empty_range)
return;
- dbg_info *dbgi = get_dbg_info(&statement->base.source_position);
-
- ir_node *const fallthrough = (get_cur_block() == NULL ? NULL : new_Jmp());
-
- ir_node *proj;
- ir_node *block = new_immBlock();
-
- set_cur_block(get_nodes_block(current_switch_cond));
- if (statement->expression != NULL) {
- long pn = statement->first_case;
- long end_pn = statement->last_case;
- assert(pn <= end_pn);
- /* create jumps for all cases in the given range */
- do {
- proj = new_d_Proj(dbgi, current_switch_cond, mode_X, pn);
+ ir_node *block = new_immBlock();
+ /* Fallthrough from previous case */
+ jump_if_reachable(block);
+
+ if (current_switch_cond != NULL) {
+ set_cur_block(get_nodes_block(current_switch_cond));
+ dbg_info *const dbgi = get_dbg_info(&statement->base.source_position);
+ if (statement->expression != NULL) {
+ long pn = statement->first_case;
+ long end_pn = statement->last_case;
+ assert(pn <= end_pn);
+ /* create jumps for all cases in the given range */
+ do {
+ ir_node *const proj = new_d_Proj(dbgi, current_switch_cond, mode_X, pn);
+ add_immBlock_pred(block, proj);
+ } while (pn++ < end_pn);
+ } else {
+ saw_default_label = true;
+ ir_node *const proj = new_d_Proj(dbgi, current_switch_cond, mode_X,
+ current_switch->default_proj_nr);
add_immBlock_pred(block, proj);
- } while(pn++ < end_pn);
- } else {
- saw_default_label = true;
- proj = new_d_defaultProj(dbgi, current_switch_cond,
- current_switch->default_proj_nr);
-
- add_immBlock_pred(block, proj);
+ }
}
- if (fallthrough != NULL) {
- add_immBlock_pred(block, fallthrough);
- }
mature_immBlock(block);
set_cur_block(block);
- if (statement->statement != NULL) {
- statement_to_firm(statement->statement);
- }
+ statement_to_firm(statement->statement);
}
static void label_to_firm(const label_statement_t *statement)
{
ir_node *block = get_label_block(statement->label);
-
- if (get_cur_block() != NULL) {
- ir_node *jmp = new_Jmp();
- add_immBlock_pred(block, jmp);
- }
+ jump_if_reachable(block);
set_cur_block(block);
keep_alive(block);
keep_all_memory(block);
- if (statement->statement != NULL) {
- statement_to_firm(statement->statement);
- }
+ statement_to_firm(statement->statement);
}
static void goto_to_firm(const goto_statement_t *statement)
char buf[64];
ir_node *value = get_value_from_lvalue(expr, addr);
- snprintf(buf, sizeof(buf), "%u", pos);
+ snprintf(buf, sizeof(buf), "%u", (unsigned) out_size);
ir_asm_constraint constraint;
constraint.pos = pos;
/* create output projs & connect them */
if (needs_memory) {
- ir_node *projm = new_Proj(node, mode_M, out_size+1);
+ ir_node *projm = new_Proj(node, mode_M, out_size);
set_store(projm);
}
}
}
-static void ms_try_statement_to_firm(ms_try_statement_t *statement)
+static void ms_try_statement_to_firm(ms_try_statement_t *statement)
{
statement_to_firm(statement->try_statement);
warningf(&statement->base.source_position, "structured exception handling ignored");
}
-static void leave_statement_to_firm(leave_statement_t *statement)
+static void leave_statement_to_firm(leave_statement_t *statement)
{
errorf(&statement->base.source_position, "__leave not supported yet");
}
const entity_t *const last)
{
int count = 0;
- for (; entity != NULL; entity = entity->base.next) {
+ entity_t const *const end = last != NULL ? last->base.next : NULL;
+ for (; entity != end; entity = entity->base.next) {
type_t *type;
bool address_taken;
if (!address_taken && is_type_scalar(type))
++count;
-
- if (entity == last)
- break;
}
return count;
}
}
}
+/**
+ * Return the number of local (alias free) variables used by a function.
+ */
static int get_function_n_local_vars(entity_t *entity)
{
+ const function_t *function = &entity->function;
int count = 0;
/* count parameters */
- count += count_local_variables(entity->function.parameters.entities, NULL);
+ count += count_local_variables(function->parameters.entities, NULL);
/* count local variables declared in body */
- walk_statements(entity->function.statement, count_local_variables_in_stmt,
- &count);
+ walk_statements(function->statement, count_local_variables_in_stmt, &count);
return count;
}
+/**
+ * Build Firm code for the parameters of a function.
+ */
static void initialize_function_parameters(entity_t *entity)
{
assert(entity->kind == ENTITY_FUNCTION);
ir_graph *irg = current_ir_graph;
ir_node *args = get_irg_args(irg);
- ir_node *start_block = get_irg_start_block(irg);
ir_type *function_irtype = get_ir_type(entity->declaration.type);
+ int first_param_nr = 0;
+
+ if (entity->function.need_closure) {
+ /* add an extra parameter for the static link */
+ entity->function.static_link = new_r_Proj(args, mode_P_data, 0);
+ ++first_param_nr;
+ }
int n = 0;
entity_t *parameter = entity->function.parameters.entities;
for ( ; parameter != NULL; parameter = parameter->base.next, ++n) {
- assert(parameter->kind == ENTITY_PARAMETER);
+ if (parameter->kind != ENTITY_PARAMETER)
+ continue;
+
assert(parameter->declaration.kind == DECLARATION_KIND_UNKNOWN);
type_t *type = skip_typeref(parameter->declaration.type);
ir_type *param_irtype = get_method_param_type(function_irtype, n);
ir_mode *param_mode = get_type_mode(param_irtype);
- long pn = n;
- ir_node *value = new_r_Proj(irg, start_block, args, param_mode, pn);
+ long pn = n + first_param_nr;
+ ir_node *value = new_r_Proj(args, param_mode, pn);
ir_mode *mode = get_ir_mode_storage(type);
value = create_conv(NULL, value, mode);
* @param irg the IR-graph
* @param dec_modifiers additional modifiers
*/
-static void handle_decl_modifier_irg(ir_graph_ptr irg, decl_modifiers_t decl_modifiers)
+static void handle_decl_modifier_irg(ir_graph_ptr irg,
+ decl_modifiers_t decl_modifiers)
{
if (decl_modifiers & DM_RETURNS_TWICE) {
/* TRUE if the declaration includes __attribute__((returns_twice)) */
- set_irg_additional_property(irg, mtp_property_returns_twice);
+ add_irg_additional_properties(irg, mtp_property_returns_twice);
}
if (decl_modifiers & DM_NORETURN) {
/* TRUE if the declaration includes the Microsoft
__declspec(noreturn) specifier. */
- set_irg_additional_property(irg, mtp_property_noreturn);
+ add_irg_additional_properties(irg, mtp_property_noreturn);
}
if (decl_modifiers & DM_NOTHROW) {
/* TRUE if the declaration includes the Microsoft
__declspec(nothrow) specifier. */
- set_irg_additional_property(irg, mtp_property_nothrow);
+ add_irg_additional_properties(irg, mtp_property_nothrow);
}
if (decl_modifiers & DM_NAKED) {
/* TRUE if the declaration includes the Microsoft
__declspec(naked) specifier. */
- set_irg_additional_property(irg, mtp_property_naked);
+ add_irg_additional_properties(irg, mtp_property_naked);
}
if (decl_modifiers & DM_FORCEINLINE) {
/* TRUE if the declaration includes the
const char *unique_template)
{
ir_type *method_type = get_entity_type(method);
- ident *id = id_unique(unique_template);
- ir_type *ptr_type = new_type_pointer(id, method_type, mode_P_code);
+ ir_type *ptr_type = new_type_pointer(method_type);
+ /* these entities don't really have a name but firm only allows
+ * "" in ld_ident.
+ * Note that we mustn't give these entities a name since for example
+ * Mach-O doesn't allow them. */
ident *ide = id_unique(unique_template);
ir_entity *ptr = new_entity(segment, ide, ptr_type);
ir_graph *irg = get_const_code_irg();
ir_node *val = new_rd_SymConst_addr_ent(NULL, irg, mode_P_code,
- method, NULL);
+ method);
+ set_entity_ld_ident(ptr, new_id_from_chars("", 0));
set_entity_compiler_generated(ptr, 1);
- set_entity_variability(ptr, variability_constant);
+ set_entity_visibility(ptr, ir_visibility_private);
+ add_entity_linkage(ptr, IR_LINKAGE_CONSTANT|IR_LINKAGE_HIDDEN_USER);
set_atomic_ent_value(ptr, val);
}
}
/**
- * Create code for a function.
+ * Create code for a function and all inner functions.
+ *
+ * @param entity the function entity
*/
static void create_function(entity_t *entity)
{
assert(entity->kind == ENTITY_FUNCTION);
- ir_entity *function_entity = get_function_entity(entity);
+ ir_entity *function_entity = get_function_entity(entity, current_outer_frame);
if (entity->function.statement == NULL)
return;
+ if (is_main(entity) && enable_main_collect2_hack) {
+ prepare_main_collect2(entity);
+ }
+
+ inner_functions = NULL;
+ current_trampolines = NULL;
+
if (entity->declaration.modifiers & DM_CONSTRUCTOR) {
ir_type *segment = get_segment_type(IR_SEGMENT_CONSTRUCTORS);
add_function_pointer(segment, function_entity, "constructor_ptr.%u");
int n_local_vars = get_function_n_local_vars(entity);
ir_graph *irg = new_ir_graph(function_entity, n_local_vars);
+ current_ir_graph = irg;
ir_graph *old_current_function = current_function;
current_function = irg;
set_irg_fp_model(irg, firm_opt.fp_model);
tarval_enable_fp_ops(1);
- set_irn_dbg_info(get_irg_start_block(irg), get_entity_dbg_info(function_entity));
+ set_irn_dbg_info(get_irg_start_block(irg),
+ get_entity_dbg_info(function_entity));
ir_node *first_block = get_cur_block();
next_value_number_function = 0;
initialize_function_parameters(entity);
+ current_static_link = entity->function.static_link;
statement_to_firm(entity->function.statement);
set_type_size_bytes(frame_type, offset);
set_type_alignment_bytes(frame_type, align_all);
- irg_vrfy(irg);
+ irg_verify(irg, VERIFY_ENFORCE_SSA);
current_function = old_current_function;
- /* create inner functions */
- entity_t *inner;
- for (inner = next_inner_function(); inner != NULL;
- inner = next_inner_function()) {
- create_function(inner);
+ if (current_trampolines != NULL) {
+ DEL_ARR_F(current_trampolines);
+ current_trampolines = NULL;
+ }
+
+ /* create inner functions if any */
+ entity_t **inner = inner_functions;
+ if (inner != NULL) {
+ ir_type *rem_outer_frame = current_outer_frame;
+ current_outer_frame = get_irg_frame_type(current_ir_graph);
+ ir_type *rem_outer_value_type = current_outer_value_type;
+ current_outer_value_type = get_irg_value_param_type(current_ir_graph);
+ for (int i = ARR_LEN(inner) - 1; i >= 0; --i) {
+ create_function(inner[i]);
+ }
+ DEL_ARR_F(inner);
+
+ current_outer_value_type = rem_outer_value_type;
+ current_outer_frame = rem_outer_frame;
}
}
continue;
if (entity->kind == ENTITY_FUNCTION) {
- get_function_entity(entity);
+ if (entity->function.btk != bk_none) {
+ /* builtins have no representation */
+ continue;
+ }
+ (void)get_function_entity(entity, NULL);
} else if (entity->kind == ENTITY_VARIABLE) {
create_global_variable(entity);
+ } else if (entity->kind == ENTITY_NAMESPACE) {
+ scope_to_firm(&entity->namespacee.members);
}
}
continue;
if (entity->kind == ENTITY_FUNCTION) {
+ if (entity->function.btk != bk_none) {
+ /* builtins have no representation */
+ continue;
+ }
create_function(entity);
} else if (entity->kind == ENTITY_VARIABLE) {
assert(entity->declaration.kind
obstack_init(&asm_obst);
init_atomic_modes();
- /* OS option must be set to the backend */
- switch (firm_opt.os_support) {
- case OS_SUPPORT_MINGW:
- create_ld_ident = create_name_win32;
- break;
- case OS_SUPPORT_LINUX:
- create_ld_ident = create_name_linux_elf;
- break;
- case OS_SUPPORT_MACHO:
- create_ld_ident = create_name_macho;
- break;
- default:
- panic("unexpected OS support mode");
- }
+ ir_set_debug_retrieve(dbg_retrieve);
+ ir_set_type_debug_retrieve(dbg_print_type_dbg_info);
/* create idents for all known runtime functions */
for (size_t i = 0; i < lengthof(rts_data); ++i) {
ir_types_initialized = 1;
ir_type_int = get_ir_type(type_int);
+ ir_type_char = get_ir_type(type_char);
ir_type_const_char = get_ir_type(type_const_char);
ir_type_wchar_t = get_ir_type(type_wchar_t);
ir_type_void = get_ir_type(type_void);
- const backend_params *be_params = be_get_backend_param();
+ be_params = be_get_backend_param();
mode_float_arithmetic = be_params->mode_float_arithmetic;
+
+ stack_param_align = be_params->stack_param_align;
}
void exit_ast2firm(void)
void translation_unit_to_firm(translation_unit_t *unit)
{
+ /* initialize firm arithmetic */
+ tarval_set_integer_overflow_mode(TV_OVERFLOW_WRAP);
+ ir_set_uninitialized_local_variable_func(uninitialized_local_var);
+
/* just to be sure */
continue_label = NULL;
break_label = NULL;
current_translation_unit = unit;
init_ir_types();
- inner_functions = NEW_ARR_F(entity_t *, 0);
scope_to_firm(&unit->scope);
global_asm_to_firm(unit->global_asm);
- DEL_ARR_F(inner_functions);
- inner_functions = NULL;
-
current_ir_graph = NULL;
current_translation_unit = NULL;
}
projects / cparser / blobdiff