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reader.c
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#define _XOPEN_SOURCE
#define _XOPEN_SOURCE_EXTENDED
#include "class_file.h"
#include "opcodes.h"
#include "types.h"
#include <stdint.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <assert.h>
#include <unistd.h>
#include <libgen.h>
#include "adt/error.h"
#include "adt/obst.h"
#include "adt/array.h"
#include "adt/raw_bitset.h"
#include "adt/pdeq.h"
#include "adt/cpmap.h"
#include "adt/hashptr.h"
#include "adt/xmalloc.h"
#include "driver/firm_opt.h"
#include "class_registry.h"
#include "gcj_interface.h"
#include "mangle.h"
#include <libfirm/be.h>
#include <libfirm/firm.h>
#include <liboo/oo.h>
#include <liboo/dmemory.h>
#include <liboo/rtti.h>
#include <liboo/nodes.h>
#include <liboo/eh.h>
#include <liboo/opt.h>
//#define EXCEPTIONS
#ifndef CLASSPATH_GCJ
#define CLASSPATH_GCJ "build/gcj"
#endif
#ifndef CLASSPATH_SIMPLERT
#define CLASSPATH_SIMPLERT "build/simplert"
#endif
extern FILE *fdopen (int __fd, __const char *__modes);
extern int mkstemp (char *__template);
static pdeq *worklist;
static class_t *class_file;
static const char *main_class_name;
static const char *main_class_name_short;
static bool verbose;
static bool static_stdlib;
static enum {
RUNTIME_GCJ,
RUNTIME_SIMPLERT
} runtime_type = RUNTIME_SIMPLERT;
static constant_t *get_constant(uint16_t index)
{
assert(index < class_file->n_constants);
constant_t *constant = class_file->constants[index];
assert(constant != NULL);
return constant;
}
static const char *get_constant_string(uint16_t index)
{
const constant_t *constant = get_constant(index);
assert(constant->kind == CONSTANT_UTF8_STRING);
return constant->utf8_string.bytes;
}
/**
* Gets firm type for the class with given name. Note that calling this function
* will not ensure that all methods, fields, vtable and rtti is already
* constructed, you must call finalize_class_type() if you need any of them.
*/
static ir_type *get_class_type(const char *name);
static void finalize_type(ir_type *type);
static void finalize_class_type(ir_type *type);
static ir_type *get_classref_type(uint16_t index);
ir_mode *mode_byte;
ir_mode *mode_char;
ir_mode *mode_short;
ir_mode *mode_int;
ir_mode *mode_long;
ir_mode *mode_float;
ir_mode *mode_double;
ir_mode *mode_reference;
ir_type *type_byte;
ir_type *type_char;
ir_type *type_short;
ir_type *type_int;
ir_type *type_long;
ir_type *type_boolean;
ir_type *type_float;
ir_type *type_double;
ir_type *type_reference;
ir_type *type_array_byte_boolean;
ir_type *type_array_char;
ir_type *type_array_short;
ir_type *type_array_int;
ir_type *type_array_long;
ir_type *type_array_float;
ir_type *type_array_double;
ir_type *type_array_reference;
static ir_entity *abort_entity;
static ir_mode *mode_float_arithmetic;
/* Get arithmetic mode for a mode. */
static ir_mode *get_ir_mode_arithmetic(ir_mode *mode)
{
if (mode_is_float(mode) && mode_float_arithmetic != NULL) {
return mode_float_arithmetic;
}
return mode;
}
static ir_node *get_value_as(ir_node *node, ir_mode *mode)
{
if (get_irn_mode(node) == mode)
return node;
return new_Conv(node, mode);
}
static void init_types(void)
{
mode_byte = new_int_mode("B", 8, true, 8);
type_byte = new_type_primitive(mode_byte);
mode_char = new_int_mode("C", 16, false, 16);
type_char = new_type_primitive(mode_char);
mode_short = new_int_mode("S", 16, true, 16);
type_short = new_type_primitive(mode_short);
mode_int = new_int_mode("I", 32, true, 32);
type_int = new_type_primitive(mode_int);
mode_long = new_int_mode("J", 64, true, 64);
type_long = new_type_primitive(mode_long);
set_type_alignment(type_long, 4);
ir_mode *mode_boolean = mode_byte;
type_boolean = new_type_primitive(mode_boolean);
/* Note: ir_overflow_min_max is incompatible with the x86 backend, we should
* support both style and select whatever backend_params.float_int_overflow
* reports. This however needs some fixup code to be generated here. */
mode_float = new_float_mode("F", irma_ieee754, 8, 23, ir_overflow_min_max);
type_float = new_type_primitive(mode_float);
mode_double
= new_float_mode("D", irma_ieee754, 11, 52, ir_overflow_min_max);
type_double = new_type_primitive(mode_double);
set_type_alignment(type_double, 4);
mode_reference = mode_P;
type_array_byte_boolean = new_type_array(type_byte, 0);
set_type_state(type_array_byte_boolean, layout_fixed);
type_array_short = new_type_array(type_short, 0);
set_type_state(type_array_short, layout_fixed);
type_array_char = new_type_array(type_char, 0);
set_type_state(type_array_char, layout_fixed);
type_array_int = new_type_array(type_int, 0);
set_type_state(type_array_int, layout_fixed);
type_array_long = new_type_array(type_long, 0);
set_type_state(type_array_long, layout_fixed);
type_array_float = new_type_array(type_float, 0);
set_type_state(type_array_float, layout_fixed);
type_array_double = new_type_array(type_double, 0);
set_type_state(type_array_double, layout_fixed);
type_reference = new_type_primitive(mode_reference);
type_array_reference = new_type_array(type_reference, 0);
set_type_state(type_array_reference, layout_fixed);
ident *abort_id = ir_platform_mangle_global("abort");
ir_type *abort_type
= new_type_method(0, 0, false, 0, mtp_property_noreturn);
abort_entity = new_global_entity(get_glob_type(), abort_id, abort_type,
ir_visibility_external,
IR_LINKAGE_DEFAULT);
}
static ir_type *descriptor_to_type(const char **descriptor);
static ir_type *array_to_type(const char **descriptor)
{
ir_type *element_type = descriptor_to_type(descriptor);
ir_type *result = new_type_pointer(element_type);
return result;
}
static ir_type *class_ref_to_type(const char **descriptor)
{
const char *begin = *descriptor;
const char *end;
for (end = begin + 1; *end != ';'; ++end) {
if (*end == '\0')
panic("type descriptor '%s' misses ';' after 'L'\n", *descriptor);
}
*descriptor = end+1;
ident *id = new_id_from_chars(begin, end-begin);
ir_type *type = get_class_type(get_id_str(id));
return new_type_pointer(type);
}
static ir_type *method_descriptor_to_type(const char *descriptor,
ir_type *owner, uint16_t method_flags)
{
const char *p = descriptor;
ir_type **arguments = NEW_ARR_F(ir_type*, 0);
/* add implicit "this" parameter if not static */
if ((method_flags & ACCESS_FLAG_STATIC) == 0) {
ir_type *this_type = new_type_pointer(owner);
ARR_APP1(ir_type*, arguments, this_type);
}
if (*p != '(') {
panic("method descriptor '%s' does not start with '('\n", descriptor);
}
++p;
while (*p != ')') {
if (*p == '\0')
panic("method type descriptor '%s' misses closing ')'\n",
descriptor);
ir_type *arg_type = descriptor_to_type(&p);
ARR_APP1(ir_type*, arguments, arg_type);
}
p++;
ir_type *res_types[1];
int n_res;
if (*p == 'V') {
p++;
n_res = 0;
} else {
n_res = 1;
res_types[0] = descriptor_to_type(&p);
}
if (*p != '\0') {
panic("invalid method descriptor '%s': extra chars at end",
descriptor);
}
ir_type *method_type
= new_type_method(ARR_LEN(arguments), n_res, false, 0, 0);
for (size_t i = 0; i < ARR_LEN(arguments); ++i) {
set_method_param_type(method_type, i, arguments[i]);
}
for (int r = 0; r < n_res; ++r) {
set_method_res_type(method_type, r, res_types[r]);
}
DEL_ARR_F(arguments);
return method_type;
}
static ir_type *descriptor_to_type(const char **descriptor)
{
char c = **descriptor;
(*descriptor)++;
switch (c) {
case 'B': return type_byte;
case 'C': return type_char;
case 'S': return type_short;
case 'I': return type_int;
case 'J': return type_long;
case 'Z': return type_boolean;
case 'D': return type_double;
case 'F': return type_float;
case 'L': return class_ref_to_type(descriptor);
case '[': return array_to_type(descriptor);
}
panic("Invalid type descriptor '%s'\n", *descriptor);
}
static ir_type *complete_descriptor_to_type(const char *descriptor)
{
const char **p = &descriptor;
ir_type *result = descriptor_to_type(p);
if (**p != '\0') {
panic("invalid type descriptor '%s' (extra characters at end)\n",
descriptor);
}
return result;
}
static void create_field_entity(field_t *field, ir_type *owner)
{
const char *name = get_constant_string(field->name_index);
const char *descriptor = get_constant_string(field->descriptor_index);
ir_type *type = complete_descriptor_to_type(descriptor);
ident *id = new_id_from_str(name);
ir_entity *entity = NULL;
if (field->access_flags & ACCESS_FLAG_STATIC) {
entity = new_entity(get_glob_type(), id, type);
set_entity_initializer(entity, get_initializer_null());
} else
entity = new_entity(owner, id, type);
const char *classname = get_compound_name(owner);
ident *ld_id = mangle_member_name(classname, name, NULL);
set_entity_ld_ident(entity, ld_id);
oo_set_entity_link(entity, field);
field->link = entity;
if (oo_get_class_is_extern(owner))
set_entity_visibility(entity, ir_visibility_external);
}
static const attribute_code_t *code;
static uint16_t stack_pointer;
static uint16_t max_locals;
static ir_mode *get_arith_mode(ir_mode *mode)
{
if (mode_is_int(mode)
&& mode != mode_int
&& mode != mode_long
) {
return mode_int;
}
return mode;
}
/**
* transform value into value with arithmetic mode
* (= all integer calulations are done in mode_int so we transform integer
* value not in mode_int to it)
*/
static ir_node *get_arith_value(ir_node *node)
{
ir_mode *irn_mode = get_irn_mode(node);
ir_mode *arith_mode = get_arith_mode(irn_mode);
if (irn_mode != arith_mode)
node = new_Conv(node, arith_mode);
return node;
}
static bool needs_two_slots(ir_mode *mode)
{
return mode == mode_long || mode == mode_double;
}
static void symbolic_push(ir_node *node)
{
if (stack_pointer >= code->max_stack)
panic("code exceeds stack limit");
ir_mode *mode = get_irn_mode(node);
assert(mode == NULL || (mode == get_arith_mode(mode)));
/* double and long need 2 stackslots */
if (needs_two_slots(mode))
set_value(stack_pointer++, new_Bad(mode));
set_value(stack_pointer++, node);
}
static ir_node *symbolic_pop(ir_mode *mode)
{
assert(mode == NULL || (mode == get_arith_mode(mode)));
if (stack_pointer == 0)
panic("code produces stack underflow");
if (mode == NULL) {
mode = ir_guess_mode(stack_pointer-1);
assert(mode != NULL);
}
ir_node *result = get_value(--stack_pointer, mode);
/* double and long need 2 stackslots */
if (needs_two_slots(mode)) {
get_value(--stack_pointer, mode);
}
return result;
}
static void set_local(uint16_t n, ir_node *node)
{
assert(n < max_locals);
set_value(code->max_stack + n, node);
ir_mode *mode = get_irn_mode(node);
assert(mode == NULL || mode == get_arith_mode(mode));
if (needs_two_slots(mode)) {
assert(n+1 < max_locals);
set_value(code->max_stack + n+1, new_Bad(mode));
}
}
static ir_node *get_local(uint16_t n, ir_mode *mode)
{
assert(n < max_locals);
assert(mode == NULL || mode == get_arith_mode(mode));
return get_value(code->max_stack + n, mode);
}
static ir_entity *find_entity(ir_type *classtype, const char *name,
const char *desc)
{
assert(is_Class_type(classtype));
// the current class_file is managed like a stack. See: get_class_type(..)
class_t *old_class = class_file;
class_t *linked_class = (class_t*) oo_get_type_link(classtype);
class_file = linked_class;
// 1. is the entity defined in this class?
ir_entity *entity = NULL;
for (uint16_t i = 0; i < class_file->n_methods; i++) {
method_t *m = class_file->methods[i];
const char *n = get_constant_string(m->name_index);
const char *s = get_constant_string(m->descriptor_index);
if (strcmp(name, n) == 0 && strcmp(desc, s) == 0) {
entity = m->link;
break;
}
}
if (entity == NULL) {
for (uint16_t i = 0; i < class_file->n_fields; i++) {
field_t *f = class_file->fields[i];
const char *n = get_constant_string(f->name_index);
const char *s = get_constant_string(f->descriptor_index);
if (strcmp(name, n) == 0 && strcmp(desc, s) == 0) {
entity = f->link;
break;
}
}
}
// 2. is the entity defined in the superclass?
if (entity == NULL && class_file->super_class > 0) {
ir_type *supertype = get_classref_type(class_file->super_class);
assert(supertype);
entity = find_entity(supertype, name, desc);
}
// 3. is the entity defined in an interface?
if (entity == NULL && class_file->n_interfaces > 0) {
for (uint16_t i = 0; i < class_file->n_interfaces; i++) {
uint16_t interface_ref = class_file->interfaces[i];
ir_type *interface = get_classref_type(interface_ref);
assert(interface);
entity = find_entity(interface, name, desc);
if (entity != NULL)
break;
}
}
assert(class_file == linked_class);
class_file = old_class;
return entity;
}
static ir_type *find_entity_defining_class(ir_type *classtype, const char *name,
const char *desc)
{
assert(is_Class_type(classtype));
ir_type *defining_class = NULL;
// the current class_file is managed like a stack. See: get_class_type(..)
class_t *old_class = class_file;
class_t *linked_class = (class_t*) oo_get_type_link(classtype);
class_file = linked_class;
// 1. is the entity defined in this class?
for (uint16_t i = 0; defining_class == NULL && i < class_file->n_methods; i++) {
method_t *m = class_file->methods[i];
const char *n = get_constant_string(m->name_index);
const char *s = get_constant_string(m->descriptor_index);
if (strcmp(name, n) == 0 && strcmp(desc, s) == 0) {
defining_class = classtype;
}
}
for (uint16_t i = 0; defining_class == NULL && i < class_file->n_fields; i++) {
field_t *f = class_file->fields[i];
const char *n = get_constant_string(f->name_index);
const char *s = get_constant_string(f->descriptor_index);
if (strcmp(name, n) == 0 && strcmp(desc, s) == 0) {
defining_class = classtype;
}
}
// 2. is the entity defined in the superclass?
if (defining_class == NULL && class_file->super_class > 0) {
ir_type *supertype = get_classref_type(class_file->super_class);
assert(supertype);
defining_class = find_entity_defining_class(supertype, name, desc);
}
// 3. is the entity defined in an interface?
if (defining_class == NULL && class_file->n_interfaces > 0) {
for (uint16_t i = 0; i < class_file->n_interfaces && defining_class == NULL; i++) {
uint16_t interface_ref = class_file->interfaces[i];
ir_type *interface = get_classref_type(interface_ref);
assert(interface);
defining_class = find_entity_defining_class(interface, name, desc);
}
}
assert(class_file == linked_class);
class_file = old_class;
return defining_class;
}
static ir_entity *get_method_entity(uint16_t index)
{
constant_t *methodref = get_constant(index);
if (methodref->kind != CONSTANT_METHODREF) {
panic("get_method_entity index argument not a methodref");
}
ir_entity *entity = methodref->base.link;
if (entity == NULL) {
const constant_t *name_and_type
= get_constant(methodref->methodref.name_and_type_index);
if (name_and_type->kind != CONSTANT_NAMEANDTYPE) {
panic("invalid name_and_type in method %u", index);
}
ir_type *classtype
= get_classref_type(methodref->methodref.class_index);
finalize_class_type(classtype);
if (!is_Class_type(classtype)) {
// semantically, this is correct (array types support the methods
// of java.lang.Object.
// We might need real array types for type info stuff later.
classtype = get_class_type("java/lang/Object");
}
const char *methodname
= get_constant_string(name_and_type->name_and_type.name_index);
const char *descriptor
= get_constant_string(name_and_type->name_and_type.descriptor_index);
entity = find_entity(classtype, methodname, descriptor);
if (entity == NULL)
panic("Couldn't find method %s.%s (%s)",
get_compound_name(classtype), methodname, descriptor);
assert(entity && is_method_entity(entity));
methodref->base.link = entity;
}
return entity;
}
static ir_type *get_method_defining_class(uint16_t index)
{
constant_t *methodref = get_constant(index);
if (methodref->kind != CONSTANT_METHODREF) {
panic("get_method_entity index argument not a methodref");
}
const constant_t *name_and_type
= get_constant(methodref->methodref.name_and_type_index);
if (name_and_type->kind != CONSTANT_NAMEANDTYPE) {
panic("invalid name_and_type in method %u", index);
}
ir_type *classtype
= get_classref_type(methodref->methodref.class_index);
if (!is_Class_type(classtype)) {
// semantically, this is correct (array types support the methods of
// java.lang.Object.
// We might need real array types for type info stuff later.
classtype = get_class_type("java/lang/Object");
}
const char *methodname
= get_constant_string(name_and_type->name_and_type.name_index);
const char *descriptor
= get_constant_string(name_and_type->name_and_type.descriptor_index);
return find_entity_defining_class(classtype, methodname, descriptor);
}
static ir_entity *get_interface_entity(uint16_t index)
{
constant_t *interfacemethodref = get_constant(index);
if (interfacemethodref->kind != CONSTANT_INTERFACEMETHODREF) {
panic("get_method_entity index argument not an interfacemethodref");
}
ir_entity *entity = interfacemethodref->base.link;
if (entity == NULL) {
const constant_t *name_and_type
= get_constant(interfacemethodref->interfacemethodref.name_and_type_index);
if (name_and_type->kind != CONSTANT_NAMEANDTYPE) {
panic("invalid name_and_type in interface method %u", index);
}
ir_type *classtype
= get_classref_type(interfacemethodref->interfacemethodref.class_index);
finalize_class_type(classtype);
const char *methodname
= get_constant_string(name_and_type->name_and_type.name_index);
const char *descriptor
= get_constant_string(name_and_type->name_and_type.descriptor_index);
entity = find_entity(classtype, methodname, descriptor);
assert(entity && is_method_entity(entity));
interfacemethodref->base.link = entity;
}
return entity;
}
static ir_entity *get_field_entity(uint16_t index)
{
constant_t *fieldref = get_constant(index);
if (fieldref->kind != CONSTANT_FIELDREF) {
panic("get_field_entity index argument not a fieldref");
}
ir_entity *entity = fieldref->base.link;
if (entity == NULL) {
const constant_t *name_and_type
= get_constant(fieldref->fieldref.name_and_type_index);
if (name_and_type->kind != CONSTANT_NAMEANDTYPE) {
panic("invalid name_and_type in field %u", index);
}
ir_type *classtype
= get_classref_type(fieldref->fieldref.class_index);
finalize_class_type(classtype);
const char *fieldname
= get_constant_string(name_and_type->name_and_type.name_index);
const char *descriptor
= get_constant_string(name_and_type->name_and_type.descriptor_index);
entity = find_entity(classtype, fieldname, descriptor);
assert(entity && !is_method_entity(entity));
fieldref->base.link = entity;
}
return entity;
}
static ir_type *get_field_defining_class(uint16_t index)
{
constant_t *fieldref = get_constant(index);
if (fieldref->kind != CONSTANT_FIELDREF) {
panic("get_field_entity index argumetn not a fieldref");
}
const constant_t *name_and_type
= get_constant(fieldref->fieldref.name_and_type_index);
if (name_and_type->kind != CONSTANT_NAMEANDTYPE) {
panic("invalid name_and_type in field %u", index);
}
ir_type *classtype
= get_classref_type(fieldref->fieldref.class_index);
finalize_class_type(classtype);
const char *fieldname
= get_constant_string(name_and_type->name_and_type.name_index);
const char *descriptor
= get_constant_string(name_and_type->name_and_type.descriptor_index);
return find_entity_defining_class(classtype, fieldname, descriptor);
}
typedef struct basic_block_t {
uint16_t pc;
ir_node *block;
int stack_pointer; /**< stack pointer at beginning of block,
may be -1 if unknown */
} basic_block_t;
static int compare_basic_blocks(const void *d1, const void *d2)
{
const basic_block_t *basic_block1 = (const basic_block_t*) d1;
const basic_block_t *basic_block2 = (const basic_block_t*) d2;
if (basic_block1->pc < basic_block2->pc) return -1;
if (basic_block1->pc > basic_block2->pc) return 1;
return 0;
}
static size_t n_basic_blocks;
static basic_block_t *basic_blocks;
static basic_block_t *find_basic_block(uint16_t pc, size_t left, size_t right)
{
if (left >= right)
return NULL;
size_t middle = left + (right - left) / 2;
basic_block_t *basic_block = &basic_blocks[middle];
if (pc < basic_block->pc)
return find_basic_block(pc, left, middle);
if (pc > basic_block->pc)
return find_basic_block(pc, middle+1, right);
if (basic_block->pc == pc)
return basic_block;
return NULL;
}
static basic_block_t *get_basic_block(uint16_t pc)
{
basic_block_t *basic_block = find_basic_block(pc, 0, n_basic_blocks);
assert(basic_block != NULL);
return basic_block;
}
static ir_node *get_target_block_remember_stackpointer(uint16_t pc)
{
basic_block_t *basic_block = get_basic_block(pc);
if (basic_block->stack_pointer >= 0 &&
basic_block->stack_pointer != stack_pointer) {
panic("stack pointers don't match for PC %u\n", pc);
}
basic_block->stack_pointer = stack_pointer;
return basic_block->block;
}
static void construct_cond(uint16_t pc_true, uint16_t pc_false,
ir_node *condition)
{
ir_node *block_true = get_target_block_remember_stackpointer(pc_true);
ir_node *block_false = get_target_block_remember_stackpointer(pc_false);
ir_node *cond = new_Cond(condition);
ir_node *proj_true = new_Proj(cond, mode_X, pn_Cond_true);
add_immBlock_pred(block_true, proj_true);
ir_node *proj_false = new_Proj(cond, mode_X, pn_Cond_false);
add_immBlock_pred(block_false, proj_false);
set_cur_block(NULL);
}
static ir_node *simple_new_Div(ir_node *left, ir_node *right)
{
ir_node *mem = get_store();
ir_node *div = new_Div(mem, left, right, op_pin_state_pinned);
ir_node *new_mem = new_Proj(div, mode_M, pn_Div_M);
set_store(new_mem);
ir_mode *amode = get_irn_mode(left);
ir_node *proj = new_Proj(div, amode, pn_Div_res);
return proj;
}
static ir_node *simple_new_Mod(ir_node *left, ir_node *right)
{
ir_node *mem = get_store();
ir_node *div = new_Mod(mem, left, right, op_pin_state_pinned);
ir_node *new_mem = new_Proj(div, mode_M, pn_Mod_M);
set_store(new_mem);
ir_mode *amode = get_irn_mode(left);
ir_node *proj = new_Proj(div, amode, pn_Mod_res);
return proj;
}
static void construct_arith(ir_mode *mode,
ir_node *(*construct_func)(ir_node *, ir_node *))
{
ir_node *right = symbolic_pop(mode);
ir_node *left = symbolic_pop(mode);
ir_mode *amode = get_ir_mode_arithmetic(mode);
left = get_value_as(left, amode);
right = get_value_as(right, amode);
ir_node *result = construct_func(left, right);
result = get_value_as(result, mode);
symbolic_push(result);
}
static void construct_shift_arith(ir_mode *mode,
ir_node *(*construct_func)(ir_node *, ir_node *))
{
ir_node *right = symbolic_pop(mode_int);
ir_node *left = symbolic_pop(mode);
ir_mode *amode = get_ir_mode_arithmetic(mode);
left = get_value_as(left, amode);
right = get_value_as(right, amode);
ir_node *right_u = new_Conv(right, mode_Iu);
ir_node *result = construct_func(left, right_u);
result = get_value_as(result, mode);
symbolic_push(result);
}
static void construct_arith_unop(ir_mode *mode,
ir_node *(*construct_func)(ir_node *))
{
ir_node *value = symbolic_pop(mode);
ir_mode *amode = get_ir_mode_arithmetic(mode);
value = get_value_as(value, amode);
ir_node *result = construct_func(value);
result = get_value_as(result, mode);
symbolic_push(result);
}
static void push_const(ir_mode *mode, long val)
{
ir_node *cnst = new_Const_long(mode, val);
symbolic_push(cnst);
}
static void push_const_tarval(ir_tarval *tv)
{
ir_node *cnst = new_Const(tv);
symbolic_push(cnst);
}
static void push_constf(ir_mode *mode, double val)
{
ir_tarval* tv = new_tarval_from_double(val, mode);
push_const_tarval(tv);
}
static void push_local(int idx, ir_mode *mode)
{
ir_node *value = get_local(idx, mode);
symbolic_push(value);
}
static void pop_set_local(int idx, ir_mode *mode)
{
ir_node *value = symbolic_pop(mode);
set_local(idx, value);
}
static void push_load_const(uint16_t index)
{
const constant_t *constant = get_constant(index);
switch (constant->kind) {
case CONSTANT_INTEGER:
push_const(mode_int, (int32_t) constant->integer.value);
break;
case CONSTANT_FLOAT: {
float val = *((float*) &constant->floatc.value);
ir_tarval *tv = new_tarval_from_double(val, mode_float);
push_const_tarval(tv);
break;
}
case CONSTANT_LONG: {
char buf[128];
uint64_t val = ((uint64_t)constant->longc.high_bytes << 32) | constant->longc.low_bytes;
snprintf(buf, sizeof(buf), "%"PRId64, (int64_t) val);
ir_tarval *tv = new_tarval_from_str(buf, strlen(buf), mode_long);
push_const_tarval(tv);
break;
}
case CONSTANT_DOUBLE: {
uint64_t val = ((uint64_t)constant->doublec.high_bytes << 32) | constant->doublec.low_bytes;
assert(sizeof(uint64_t) == sizeof(double));
double dval = *((double*)&val);
ir_tarval *tv = new_tarval_from_double(dval, mode_double);
push_const_tarval(tv);
break;
}
case CONSTANT_STRING: {
constant_t *utf8_const = get_constant(constant->string.string_index);
ir_entity *string_const = gcji_emit_utf8_const(utf8_const, 0);
ir_node *res = gcji_new_string(string_const);
symbolic_push(res);
break;
}
case CONSTANT_CLASSREF: {
const char *classname = get_constant_string(constant->classref.name_index);
ir_type *klass = get_class_type(classname);
ir_entity *rtti_entity = gcji_get_rtti_entity(klass);
ir_node *rtti_addr = new_Address(rtti_entity);
symbolic_push(rtti_addr);
break;
}
default:
panic("ldc without int, float, string or classref constant");
}
}
static void construct_vreturn(ir_type *method_type, ir_mode *mode)
{
int n_ins = 0;
ir_node *in[1];
if (mode != NULL) {
ir_type *return_type = get_method_res_type(method_type, 0);
ir_mode *res_mode = get_type_mode(return_type);
ir_node *val = symbolic_pop(mode);
n_ins = 1;
in[0] = new_Conv(val, res_mode);
}
ir_node *ret = new_Return(get_store(), n_ins, in);
if (stack_pointer != 0) {
fprintf(stderr, "Warning: stackpointer >0 after return at\n");
}
ir_node *end_block = get_irg_end_block(current_ir_graph);
add_immBlock_pred(end_block, ret);
set_cur_block(NULL);
}
static void construct_dup(void)
{
uint16_t sp = stack_pointer;
ir_node *val1 = symbolic_pop(NULL);
assert(!needs_two_slots(get_irn_mode(val1)));
symbolic_push(val1);
symbolic_push(val1);
assert((sp+1) == stack_pointer);
}
static void construct_dup_x1(void)
{
uint16_t sp = stack_pointer;
ir_node *val1 = symbolic_pop(NULL);
ir_node *val2 = symbolic_pop(NULL);
assert(!needs_two_slots(get_irn_mode(val1)));
assert(!needs_two_slots(get_irn_mode(val2)));
symbolic_push(val1);
symbolic_push(val2);
symbolic_push(val1);
assert((sp+1) == stack_pointer);
}
static void construct_dup_x2(void)
{
uint16_t sp = stack_pointer;
ir_node *val1 = symbolic_pop(NULL);
ir_node *val2 = symbolic_pop(NULL);
ir_node *val3 = NULL;
assert(!needs_two_slots(get_irn_mode(val1)));
if (!needs_two_slots(get_irn_mode(val2))) {
val3 = symbolic_pop(NULL);
assert(!needs_two_slots(get_irn_mode(val3)));
}
symbolic_push(val1);
if (val3 != NULL) symbolic_push(val3);
symbolic_push(val2);
symbolic_push(val1);
assert((sp+1) == stack_pointer);
}
static void construct_dup2(void)
{
uint16_t sp = stack_pointer;
ir_node *val1 = symbolic_pop(NULL);
ir_node *val2 = NULL;
if (!needs_two_slots(get_irn_mode(val1))) {
val2 = symbolic_pop(NULL);
assert(!needs_two_slots(get_irn_mode(val2)));
}
if (val2 != NULL) symbolic_push(val2);
symbolic_push(val1);
if (val2 != NULL) symbolic_push(val2);
symbolic_push(val1);
assert((sp+2) == stack_pointer);
}
static void construct_dup2_x1(void)
{
uint16_t sp = stack_pointer;
ir_node *val1 = symbolic_pop(NULL);
ir_node *val2 = symbolic_pop(NULL);
ir_node *val3 = NULL;
assert(!needs_two_slots(get_irn_mode(val2)));
if (!needs_two_slots(get_irn_mode(val1))) {
val3 = symbolic_pop(NULL);
assert(!needs_two_slots(get_irn_mode(val3)));
}
if (val3 != NULL) symbolic_push(val2);