/* Process declarations and variables for the GNU compiler for the
Java(TM) language.
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of GCC.
#include "java-except.h"
#include "ggc.h"
#include "timevar.h"
+#include "cgraph.h"
#include "tree-inline.h"
+#include "target.h"
+#include "version.h"
#if defined (DEBUG_JAVA_BINDING_LEVELS)
extern void indent (void);
static tree push_promoted_type (const char *, tree);
static struct binding_level *make_binding_level (void);
static tree create_primitive_vtable (const char *);
-static tree check_local_named_variable (tree, tree, int, int *);
static tree check_local_unnamed_variable (tree, tree, tree);
-static void dump_function (enum tree_dump_index, tree);
+static void parse_version (void);
+
+/* Used when computing the ABI version. */
+#define GCJ_BINARYCOMPAT_ADDITION 5
+
+/* The version of the BC ABI that we generate. At the moment we are
+ compatible with what shipped in GCC 4.0. This must be kept in sync
+ with parse_version(), libgcj, and reality (if the BC format
+ changes, this must change. */
+#define GCJ_CURRENT_BC_ABI_VERSION \
+ (4 * 10000 + 0 * 10 + GCJ_BINARYCOMPAT_ADDITION)
+
+/* The ABI version number. */
+tree gcj_abi_version;
/* Name of the Cloneable class. */
tree java_lang_cloneable_identifier_node;
/* Name of the Serializable class. */
tree java_io_serializable_identifier_node;
-/* Set to nonzero value in order to emit class initialization code
- before static field references. */
-extern int always_initialize_class_p;
-
/* The DECL_MAP is a mapping from (index, type) to a decl node.
If index < max_locals, it is the index of a local variable.
if index >= max_locals, then index-max_locals is a stack slot.
static GTY(()) tree decl_map;
+/* The base_decl_map is contains one variable of ptr_type: this is
+ used to contain every variable of reference type that is ever
+ stored in a local variable slot. */
+
+static GTY(()) tree base_decl_map;
+
+/* An index used to make temporary identifiers unique. */
+static int uniq;
+
/* A list of local variables VAR_DECLs for this method that we have seen
debug information, but we have not reached their starting (byte) PC yet. */
static GTY(()) tree pending_local_decls;
-/* Push a local variable or stack slot into the decl_map,
- and assign it an rtl. */
-
#if defined(DEBUG_JAVA_BINDING_LEVELS)
int binding_depth = 0;
int is_class_level = 0;
void
indent (void)
{
- register unsigned i;
+ int i;
for (i = 0; i < binding_depth*2; i++)
putc (' ', stderr);
}
#endif /* defined(DEBUG_JAVA_BINDING_LEVELS) */
-static tree
-push_jvm_slot (int index, tree decl)
+/* True if decl is a named local variable, i.e. if it is an alias
+ that's used only for debugging purposes. */
+
+static bool
+debug_variable_p (tree decl)
{
- struct rtx_def *rtl = NULL;
- tree type = TREE_TYPE (decl);
+ if (TREE_CODE (decl) == PARM_DECL)
+ return false;
+
+ if (LOCAL_SLOT_P (decl))
+ return false;
+
+ return true;
+}
+
+/* Copy the value in decl into every live alias in the same local
+ variable slot. Some of these will be dead stores removed by the
+ optimizer. */
+
+void
+update_aliases (tree decl, int index, int pc)
+{
+ tree decl_type = TREE_TYPE (decl);
tree tmp;
- DECL_CONTEXT (decl) = current_function_decl;
- layout_decl (decl, 0);
+ if (debug_variable_p (decl))
+ abort ();
- /* See if we have an appropriate rtl (i.e. same mode) at this index.
- If so, we must use it. */
- tmp = TREE_VEC_ELT (decl_map, index);
- while (tmp != NULL_TREE)
- {
- if (TYPE_MODE (type) == TYPE_MODE (TREE_TYPE (tmp)))
- rtl = DECL_RTL_IF_SET (tmp);
- if (rtl != NULL)
- break;
- tmp = DECL_LOCAL_SLOT_CHAIN (tmp);
- }
- if (rtl != NULL)
- SET_DECL_RTL (decl, rtl);
- else
+ for (tmp = TREE_VEC_ELT (decl_map, index);
+ tmp != NULL_TREE;
+ tmp = DECL_LOCAL_SLOT_CHAIN (tmp))
{
- if (index >= DECL_MAX_LOCALS (current_function_decl))
- DECL_REGISTER (decl) = 1;
- expand_decl (decl);
+ tree tmp_type = TREE_TYPE (tmp);
+ if (tmp != decl
+ && LOCAL_SLOT_P (tmp) == 0
+ && (pc == -1
+ || (pc >= DECL_LOCAL_START_PC (tmp)
+ && pc < DECL_LOCAL_END_PC (tmp)))
+ /* This test is < (rather than <=) because there's no point
+ updating an alias that's about to die at the end of this
+ instruction. */
+ && (tmp_type == decl_type
+ || (INTEGRAL_TYPE_P (tmp_type)
+ && INTEGRAL_TYPE_P (decl_type)
+ && TYPE_PRECISION (decl_type) <= 32
+ && TYPE_PRECISION (tmp_type) <= 32)
+ || (TREE_CODE (tmp_type) == POINTER_TYPE
+ && TREE_CODE (decl_type) == POINTER_TYPE)))
+ {
+ tree src = build1 (NOP_EXPR, tmp_type, decl);
+ if (LOCAL_VAR_OUT_OF_SCOPE_P (tmp))
+ abort ();
+ java_add_stmt (build2 (MODIFY_EXPR, tmp_type, tmp, src));
+ }
}
+}
+
+static tree
+push_jvm_slot (int index, tree decl)
+{
+ DECL_CONTEXT (decl) = current_function_decl;
+ layout_decl (decl, 0);
/* Now link the decl into the decl_map. */
if (DECL_LANG_SPECIFIC (decl) == NULL)
}
DECL_LOCAL_SLOT_CHAIN (decl) = TREE_VEC_ELT (decl_map, index);
TREE_VEC_ELT (decl_map, index) = decl;
+
return decl;
}
-/* Find out if 'decl' passed in fits the defined PC location better than
- 'best'. Return decl if it does, return best if it doesn't. If decl
- is returned, then updated is set to true. */
+/* At the point of its creation a local variable decl inherits
+ whatever is already in the same slot. In the case of a local
+ variable that is declared but unused, we won't find anything. */
-static tree
-check_local_named_variable (tree best, tree decl, int pc, int *updated)
+static void
+initialize_local_variable (tree decl, int index)
{
- if (pc >= DECL_LOCAL_START_PC (decl)
- && pc < DECL_LOCAL_END_PC (decl))
+ tree decl_type = TREE_TYPE (decl);
+ if (TREE_CODE (decl_type) == POINTER_TYPE)
{
- if (best == NULL_TREE
- || (DECL_LOCAL_START_PC (decl) > DECL_LOCAL_START_PC (best)
- && DECL_LOCAL_END_PC (decl) < DECL_LOCAL_END_PC (best)))
+ tree tmp = TREE_VEC_ELT (base_decl_map, index);
+
+ if (tmp)
{
- *updated = 1;
- return decl;
+ /* At the point of its creation this decl inherits whatever
+ is in the slot. */
+ tree src = build1 (NOP_EXPR, decl_type, tmp);
+ java_add_stmt (build2 (MODIFY_EXPR, decl_type, decl, src));
}
}
+ else
+ {
+ tree tmp;
- return best;
+ for (tmp = TREE_VEC_ELT (decl_map, index);
+ tmp != NULL_TREE;
+ tmp = DECL_LOCAL_SLOT_CHAIN (tmp))
+ {
+ tree tmp_type = TREE_TYPE (tmp);
+ if (tmp != decl
+ && ! debug_variable_p (tmp)
+ && (tmp_type == decl_type
+ || (INTEGRAL_TYPE_P (tmp_type)
+ && INTEGRAL_TYPE_P (decl_type)
+ && TYPE_PRECISION (decl_type) <= 32
+ && TYPE_PRECISION (tmp_type) <= 32
+ && TYPE_PRECISION (tmp_type)
+ >= TYPE_PRECISION (decl_type))))
+ {
+ java_add_stmt (build2 (MODIFY_EXPR, decl_type, decl, tmp));
+ return;
+ }
+ }
+ }
}
/* Find the best declaration based upon type. If 'decl' fits 'type' better
static tree
check_local_unnamed_variable (tree best, tree decl, tree type)
{
- if (TREE_TYPE (decl) == type
- || (TREE_CODE (TREE_TYPE (decl)) == TREE_CODE (type)
- && TYPE_PRECISION (TREE_TYPE (decl)) <= 32
- && TYPE_PRECISION (type) <= 32
- && TREE_CODE (type) != POINTER_TYPE)
- || (TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE
- && type == ptr_type_node))
- {
- if (best == NULL_TREE
- || (TREE_TYPE (decl) == type && TREE_TYPE (best) != type))
- return decl;
- }
-
- return best;
+ tree decl_type = TREE_TYPE (decl);
+
+ if (LOCAL_VAR_OUT_OF_SCOPE_P (decl))
+ abort ();
+
+ /* Use the same decl for all integer types <= 32 bits. This is
+ necessary because sometimes a value is stored as (for example)
+ boolean but loaded as int. */
+ if (decl_type == type
+ || (INTEGRAL_TYPE_P (decl_type)
+ && INTEGRAL_TYPE_P (type)
+ && TYPE_PRECISION (decl_type) <= 32
+ && TYPE_PRECISION (type) <= 32
+ && TYPE_PRECISION (decl_type) >= TYPE_PRECISION (type))
+ /* ptr_type_node is used for null pointers, which are
+ assignment compatible with everything. */
+ || (TREE_CODE (decl_type) == POINTER_TYPE
+ && type == ptr_type_node)
+ /* Whenever anyone wants to use a slot that is initially
+ occupied by a PARM_DECL of pointer type they must get that
+ decl, even if they asked for a pointer to a different type.
+ However, if someone wants a scalar variable in a slot that
+ initially held a pointer arg -- or vice versa -- we create a
+ new VAR_DECL.
+
+ ???: As long as verification is correct, this will be a
+ compatible type. But maybe we should create a dummy variable
+ and replace all references to it with the DECL and a
+ NOP_EXPR.
+ */
+ || (TREE_CODE (decl_type) == POINTER_TYPE
+ && TREE_CODE (decl) == PARM_DECL
+ && TREE_CODE (type) == POINTER_TYPE))
+ {
+ if (best == NULL_TREE
+ || (decl_type == type && TREE_TYPE (best) != type))
+ return decl;
+ }
+
+ return best;
}
If there is no existing matching decl, allocate one. */
tree
-find_local_variable (int index, tree type, int pc)
+find_local_variable (int index, tree type, int pc ATTRIBUTE_UNUSED)
{
- tree decl = TREE_VEC_ELT (decl_map, index);
- tree best = NULL_TREE;
- int found_scoped_var = 0;
+ tree tmp = TREE_VEC_ELT (decl_map, index);
+ tree decl = NULL_TREE;
- /* Scan through every declaration that has been created in this slot. */
- while (decl != NULL_TREE)
+ /* Scan through every declaration that has been created in this
+ slot. We're only looking for variables that correspond to local
+ index declarations and PARM_DECLs, not named variables: such
+ local variables are used only for debugging information. */
+ while (tmp != NULL_TREE)
{
- /* Variables created in give_name_to_locals() have a name and have
- a specified scope, so we can handle them specifically. We want
- to use the specific decls created for those so they are assigned
- the right variables in the debugging information. */
- if (DECL_NAME (decl) != NULL_TREE)
- {
- /* This is a variable we have a name for, so it has a scope
- supplied in the class file. But it only matters when we
- actually have a PC to use. If pc<0, then we are asking
- for a stack slot and this decl won't be one of those. */
- if (pc >= 0)
- best = check_local_named_variable (best, decl, pc,
- &found_scoped_var);
- }
- /* We scan for type information unless we found a variable in the
- proper scope already. */
- else if (!found_scoped_var)
- {
- /* If we don't have scoping information for a variable, we use
- a different method to look it up. */
- best = check_local_unnamed_variable (best, decl, type);
- }
-
- decl = DECL_LOCAL_SLOT_CHAIN (decl);
+ if (! debug_variable_p (tmp))
+ decl = check_local_unnamed_variable (decl, tmp, type);
+ tmp = DECL_LOCAL_SLOT_CHAIN (tmp);
+ }
+
+ /* gcj has a function called promote_type(), which is used by both
+ the bytecode compiler and the source compiler. Unfortunately,
+ the type systems for the Java VM and the Java language are not
+ the same: a boolean in the VM promotes to an int, not to a wide
+ boolean. If our caller wants something to hold a boolean, that
+ had better be an int, because that slot might be re-used
+ later in integer context. */
+ if (TREE_CODE (type) == BOOLEAN_TYPE)
+ type = integer_type_node;
+
+ /* If we don't find a match, create one with the type passed in.
+ The name of the variable is #n#m, which n is the variable index
+ in the local variable area and m is a dummy identifier for
+ uniqueness -- multiple variables may share the same local
+ variable index. We don't call pushdecl() to push pointer types
+ into a binding expr because they'll all be replaced by a single
+ variable that is used for every reference in that local variable
+ slot. */
+ if (! decl)
+ {
+ char buf[64];
+ tree name;
+ sprintf (buf, "#slot#%d#%d", index, uniq++);
+ name = get_identifier (buf);
+ decl = build_decl (VAR_DECL, name, type);
+ DECL_IGNORED_P (decl) = 1;
+ DECL_ARTIFICIAL (decl) = 1;
+ decl = push_jvm_slot (index, decl);
+ LOCAL_SLOT_P (decl) = 1;
+
+ if (TREE_CODE (type) != POINTER_TYPE)
+ pushdecl_function_level (decl);
}
- if (best != NULL_TREE)
- return best;
+ /* As well as creating a local variable that matches the type, we
+ also create a base variable (of ptr_type) that will hold all its
+ aliases. */
+ if (TREE_CODE (type) == POINTER_TYPE
+ && ! TREE_VEC_ELT (base_decl_map, index))
+ {
+ char buf[64];
+ tree name;
+ tree base_decl;
+ sprintf (buf, "#ref#%d#%d", index, uniq++);
+ name = get_identifier (buf);
+ base_decl
+ = TREE_VEC_ELT (base_decl_map, index)
+ = build_decl (VAR_DECL, name, ptr_type_node);
+ pushdecl_function_level (base_decl);
+ DECL_IGNORED_P (base_decl) = 1;
+ DECL_ARTIFICIAL (base_decl) = 1;
+ }
+
+ return decl;
+}
+
+/* Called during gimplification for every variable. If the variable
+ is a temporary of pointer type, replace it with a common variable
+ thath is used to hold all pointer types that are ever stored in
+ that slot. Set WANT_LVALUE if you want a variable that is to be
+ written to. */
+
+tree
+java_replace_reference (tree var_decl, bool want_lvalue)
+{
+ tree decl_type;
+
+ if (! base_decl_map)
+ return var_decl;
+
+ decl_type = TREE_TYPE (var_decl);
+
+ if (TREE_CODE (decl_type) == POINTER_TYPE)
+ {
+ if (DECL_LANG_SPECIFIC (var_decl)
+ && LOCAL_SLOT_P (var_decl))
+ {
+ int index = DECL_LOCAL_SLOT_NUMBER (var_decl);
+ tree base_decl = TREE_VEC_ELT (base_decl_map, index);
+
+ if (! base_decl)
+ abort ();
+
+ if (! want_lvalue)
+ base_decl = build1 (NOP_EXPR, decl_type, base_decl);
+
+ return base_decl;
+ }
+ }
- /* If we don't find a match, create one with the type passed in. */
- return push_jvm_slot (index, build_decl (VAR_DECL, NULL_TREE, type));
+ return var_decl;
}
type, -1);
}
-struct binding_level
+struct binding_level GTY(())
{
/* A chain of _DECL nodes for all variables, constants, functions,
* and typedef types. These are in the reverse of the order supplied.
that were entered and exited one level down. */
tree blocks;
- /* The BLOCK node for this level, if one has been preallocated.
- If 0, the BLOCK is allocated (if needed) when the level is popped. */
- tree this_block;
-
/* The binding level which this one is contained in (inherits from). */
struct binding_level *level_chain;
/* The bytecode PC that marks the start of this level. */
int start_pc;
-#if defined(DEBUG_JAVA_BINDING_LEVELS)
- /* Binding depth at which this level began. */
+ /* The statements in this binding level. */
+ tree stmts;
+
+ /* An exception range associated with this binding level. */
+ struct eh_range * GTY((skip (""))) exception_range;
+
+ /* Binding depth at which this level began. Used only for debugging. */
unsigned binding_depth;
-#endif /* defined(DEBUG_JAVA_BINDING_LEVELS) */
};
#define NULL_BINDING_LEVEL (struct binding_level *) NULL
/* The binding level currently in effect. */
-static struct binding_level *current_binding_level;
+static GTY(()) struct binding_level *current_binding_level;
/* A chain of binding_level structures awaiting reuse. */
-static struct binding_level *free_binding_level;
+static GTY(()) struct binding_level *free_binding_level;
/* The outermost binding level, for names of file scope.
This is created when the compiler is started and exists
through the entire run. */
-static struct binding_level *global_binding_level;
+static GTY(()) struct binding_level *global_binding_level;
+
+/* The binding level that holds variables declared at the outermost
+ level within a function body. */
+
+static struct binding_level *function_binding_level;
/* A PC value bigger than any PC value we may ever may encounter. */
/* Binding level structures are initialized by copying this one. */
static const struct binding_level clear_binding_level
- = {NULL_TREE, NULL_TREE, NULL_TREE, NULL_TREE,
- NULL_BINDING_LEVEL, LARGEST_PC, 0};
+= {
+ NULL_TREE, /* names */
+ NULL_TREE, /* shadowed */
+ NULL_TREE, /* blocks */
+ NULL_BINDING_LEVEL, /* level_chain */
+ LARGEST_PC, /* end_pc */
+ 0, /* start_pc */
+ NULL, /* stmts */
+ NULL, /* exception_range */
+ 0, /* binding_depth */
+ };
#if 0
/* A list (chain of TREE_LIST nodes) of all LABEL_DECLs in the function
builtin_function (const char *name,
tree type,
int function_code,
- enum built_in_class class,
+ enum built_in_class cl,
const char *library_name,
- tree attrs ATTRIBUTE_UNUSED)
+ tree ARG_UNUSED (attrs))
{
tree decl = build_decl (FUNCTION_DECL, get_identifier (name), type);
DECL_EXTERNAL (decl) = 1;
TREE_PUBLIC (decl) = 1;
if (library_name)
SET_DECL_ASSEMBLER_NAME (decl, get_identifier (library_name));
- make_decl_rtl (decl, NULL);
+ make_decl_rtl (decl);
pushdecl (decl);
- DECL_BUILT_IN_CLASS (decl) = class;
+ DECL_BUILT_IN_CLASS (decl) = cl;
DECL_FUNCTION_CODE (decl) = function_code;
return decl;
}
return r;
}
+static tree
+do_nothing (tree t)
+{
+ return t;
+}
+
+/* Parse the version string and compute the ABI version number. */
+static void
+parse_version (void)
+{
+ const char *p = version_string;
+ unsigned int major = 0, minor = 0;
+ unsigned int abi_version;
+
+ /* Skip leading junk. */
+ while (*p && !ISDIGIT (*p))
+ ++p;
+ gcc_assert (*p);
+
+ /* Extract major version. */
+ while (ISDIGIT (*p))
+ {
+ major = major * 10 + *p - '0';
+ ++p;
+ }
+
+ gcc_assert (*p == '.' && ISDIGIT (p[1]));
+ ++p;
+
+ /* Extract minor version. */
+ while (ISDIGIT (*p))
+ {
+ minor = minor * 10 + *p - '0';
+ ++p;
+ }
+
+ /* Implicit in this computation is the idea that we won't break the
+ old-style binary ABI in a sub-minor release (e.g., from 4.0.0 to
+ 4.0.1). */
+ abi_version = 10000 * major + 10 * minor;
+ /* It is helpful to distinguish BC ABI from ordinary ABI at this
+ level, since at some point we will recognize a variety of BC ABIs
+ (objects generated by different version of gcj), but will
+ probably always require strict matching for ordinary ABI. */
+ if (flag_indirect_dispatch)
+ abi_version = GCJ_CURRENT_BC_ABI_VERSION;
+
+ gcj_abi_version = build_int_cstu (ptr_type_node, abi_version);
+}
+
void
java_init_decl_processing (void)
{
- register tree endlink;
+ tree endlink;
tree field = NULL_TREE;
tree t;
init_class_processing ();
- init_resource_processing ();
current_function_decl = NULL;
current_binding_level = NULL_BINDING_LEVEL;
TREE_TYPE (error_mark_node) = error_mark_node;
/* Create sizetype first - needed for other types. */
- initialize_sizetypes ();
+ initialize_sizetypes (false);
byte_type_node = make_signed_type (8);
pushdecl (build_decl (TYPE_DECL, get_identifier ("byte"), byte_type_node));
pushdecl (build_decl (TYPE_DECL, get_identifier ("unsigned long"),
unsigned_long_type_node));
- set_sizetype (make_unsigned_type (POINTER_SIZE));
+ /* This is not a java type, however tree-dfa requires a definition for
+ size_type_node. */
+ size_type_node = make_unsigned_type (POINTER_SIZE);
+ set_sizetype (size_type_node);
/* Define these next since types below may used them. */
integer_type_node = java_type_for_size (INT_TYPE_SIZE, 0);
- integer_zero_node = build_int_2 (0, 0);
- integer_one_node = build_int_2 (1, 0);
- integer_two_node = build_int_2 (2, 0);
- integer_four_node = build_int_2 (4, 0);
- integer_minus_one_node = build_int_2 (-1, -1);
+ integer_zero_node = build_int_cst (NULL_TREE, 0);
+ integer_one_node = build_int_cst (NULL_TREE, 1);
+ integer_two_node = build_int_cst (NULL_TREE, 2);
+ integer_four_node = build_int_cst (NULL_TREE, 4);
+ integer_minus_one_node = build_int_cst (NULL_TREE, -1);
/* A few values used for range checking in the lexer. */
- decimal_int_max = build_int_2 (0x80000000, 0);
- TREE_TYPE (decimal_int_max) = unsigned_int_type_node;
+ decimal_int_max = build_int_cstu (unsigned_int_type_node, 0x80000000);
#if HOST_BITS_PER_WIDE_INT == 64
- decimal_long_max = build_int_2 (0x8000000000000000LL, 0);
-#else
-#if HOST_BITS_PER_WIDE_INT == 32
- decimal_long_max = build_int_2 (0, 0x80000000);
+ decimal_long_max = build_int_cstu (unsigned_long_type_node,
+ 0x8000000000000000LL);
+#elif HOST_BITS_PER_WIDE_INT == 32
+ decimal_long_max = build_int_cst_wide (unsigned_long_type_node,
+ 0, 0x80000000);
#else
#error "unsupported size"
#endif
-#endif
- TREE_TYPE (decimal_long_max) = unsigned_long_type_node;
size_zero_node = size_int (0);
size_one_node = size_int (1);
bitsize_one_node = bitsize_int (1);
bitsize_unit_node = bitsize_int (BITS_PER_UNIT);
- long_zero_node = build_int_2 (0, 0);
- TREE_TYPE (long_zero_node) = long_type_node;
+ long_zero_node = build_int_cst (long_type_node, 0);
void_type_node = make_node (VOID_TYPE);
pushdecl (build_decl (TYPE_DECL, get_identifier ("void"), void_type_node));
layout_type (void_type_node); /* Uses size_zero_node */
+
ptr_type_node = build_pointer_type (void_type_node);
+ const_ptr_type_node
+ = build_pointer_type (build_type_variant (void_type_node, 1, 0));
+
t = make_node (VOID_TYPE);
layout_type (t); /* Uses size_zero_node */
return_address_type_node = build_pointer_type (t);
- null_pointer_node = build_int_2 (0, 0);
- TREE_TYPE (null_pointer_node) = ptr_type_node;
-
- /* Used by the parser to represent empty statements and blocks. */
- empty_stmt_node = build1 (NOP_EXPR, void_type_node, size_zero_node);
- CAN_COMPLETE_NORMALLY (empty_stmt_node) = 1;
+ null_pointer_node = build_int_cst (ptr_type_node, 0);
#if 0
/* Make a type to be the domain of a few array types
float_array_vtable = create_primitive_vtable ("float");
double_array_vtable = create_primitive_vtable ("double");
+ one_elt_array_domain_type = build_index_type (integer_one_node);
+ utf8const_type = make_node (RECORD_TYPE);
+ PUSH_FIELD (utf8const_type, field, "hash", unsigned_short_type_node);
+ PUSH_FIELD (utf8const_type, field, "length", unsigned_short_type_node);
+ FINISH_RECORD (utf8const_type);
+ utf8const_ptr_type = build_pointer_type (utf8const_type);
+
+ atable_type = build_array_type (ptr_type_node,
+ one_elt_array_domain_type);
+ TYPE_NONALIASED_COMPONENT (atable_type) = 1;
+ atable_ptr_type = build_pointer_type (atable_type);
+
+ itable_type = build_array_type (ptr_type_node,
+ one_elt_array_domain_type);
+ TYPE_NONALIASED_COMPONENT (itable_type) = 1;
+ itable_ptr_type = build_pointer_type (itable_type);
+
+ symbol_type = make_node (RECORD_TYPE);
+ PUSH_FIELD (symbol_type, field, "clname", utf8const_ptr_type);
+ PUSH_FIELD (symbol_type, field, "name", utf8const_ptr_type);
+ PUSH_FIELD (symbol_type, field, "signature", utf8const_ptr_type);
+ FINISH_RECORD (symbol_type);
+
+ symbols_array_type = build_array_type (symbol_type,
+ one_elt_array_domain_type);
+ symbols_array_ptr_type = build_pointer_type (symbols_array_type);
+
+ assertion_entry_type = make_node (RECORD_TYPE);
+ PUSH_FIELD (assertion_entry_type, field, "assertion_code", integer_type_node);
+ PUSH_FIELD (assertion_entry_type, field, "op1", utf8const_ptr_type);
+ PUSH_FIELD (assertion_entry_type, field, "op2", utf8const_ptr_type);
+ FINISH_RECORD (assertion_entry_type);
+
+ assertion_table_type = build_array_type (assertion_entry_type,
+ one_elt_array_domain_type);
+
/* As you're adding items here, please update the code right after
this section, so that the filename containing the source code of
the pre-defined class gets registered correctly. */
lookup_class (get_identifier ("java.lang.RuntimeException"));
error_exception_type_node =
lookup_class (get_identifier ("java.lang.Error"));
- class_not_found_type_node =
- lookup_class (get_identifier ("java.lang.ClassNotFoundException"));
- no_class_def_found_type_node =
- lookup_class (get_identifier ("java.lang.NoClassDefFoundError"));
rawdata_ptr_type_node
= promote_type (lookup_class (get_identifier ("gnu.gcj.RawData")));
add_predefined_file (get_identifier ("java/lang/Exception.java"));
add_predefined_file (get_identifier ("java/lang/ClassNotFoundException.java"));
add_predefined_file (get_identifier ("java/lang/NoClassDefFoundError.java"));
- add_predefined_file (get_identifier ("gnu/gcj/RawData.java"));
methodtable_type = make_node (RECORD_TYPE);
layout_type (methodtable_type);
/* for lack of a better place to put this stub call */
init_expr_processing();
- utf8const_type = make_node (RECORD_TYPE);
- PUSH_FIELD (utf8const_type, field, "hash", unsigned_short_type_node);
- PUSH_FIELD (utf8const_type, field, "length", unsigned_short_type_node);
- FINISH_RECORD (utf8const_type);
- utf8const_ptr_type = build_pointer_type (utf8const_type);
-
constants_type_node = make_node (RECORD_TYPE);
PUSH_FIELD (constants_type_node, field, "size", unsigned_int_type_node);
PUSH_FIELD (constants_type_node, field, "tags", ptr_type_node);
dtable_type = make_node (RECORD_TYPE);
dtable_ptr_type = build_pointer_type (dtable_type);
- one_elt_array_domain_type = build_index_type (integer_one_node);
otable_type = build_array_type (integer_type_node,
one_elt_array_domain_type);
TYPE_NONALIASED_COMPONENT (otable_type) = 1;
otable_ptr_type = build_pointer_type (otable_type);
- method_symbol_type = make_node (RECORD_TYPE);
- PUSH_FIELD (method_symbol_type, field, "clname", utf8const_ptr_type);
- PUSH_FIELD (method_symbol_type, field, "name", utf8const_ptr_type);
- PUSH_FIELD (method_symbol_type, field, "signature", utf8const_ptr_type);
- FINISH_RECORD (method_symbol_type);
-
- method_symbols_array_type = build_array_type (method_symbol_type,
- one_elt_array_domain_type);
- method_symbols_array_ptr_type = build_pointer_type
- (method_symbols_array_type);
-
- otable_decl = build_decl (VAR_DECL, get_identifier ("otable"), otable_type);
- DECL_EXTERNAL (otable_decl) = 1;
- TREE_STATIC (otable_decl) = 1;
- TREE_READONLY (otable_decl) = 1;
- pushdecl (otable_decl);
-
- otable_syms_decl = build_decl (VAR_DECL, get_identifier ("otable_syms"),
- method_symbols_array_type);
- TREE_STATIC (otable_syms_decl) = 1;
- TREE_CONSTANT (otable_syms_decl) = 1;
- pushdecl (otable_syms_decl);
-
PUSH_FIELD (object_type_node, field, "vtable", dtable_ptr_type);
+ DECL_FCONTEXT (field) = object_type_node;
+ TYPE_VFIELD (object_type_node) = field;
+
/* This isn't exactly true, but it is what we have in the source.
There is an unresolved issue here, which is whether the vtable
should be marked by the GC. */
set_super_info (0, string_type_node, object_type_node, 0);
class_ptr_type = build_pointer_type (class_type_node);
- PUSH_FIELD (class_type_node, field, "next", class_ptr_type);
+ PUSH_FIELD (class_type_node, field, "next_or_version", class_ptr_type);
PUSH_FIELD (class_type_node, field, "name", utf8const_ptr_type);
PUSH_FIELD (class_type_node, field, "accflags", access_flags_type_node);
PUSH_FIELD (class_type_node, field, "superclass", class_ptr_type);
PUSH_FIELD (class_type_node, field, "vtable", dtable_ptr_type);
PUSH_FIELD (class_type_node, field, "otable", otable_ptr_type);
PUSH_FIELD (class_type_node, field, "otable_syms",
- method_symbols_array_ptr_type);
+ symbols_array_ptr_type);
+ PUSH_FIELD (class_type_node, field, "atable", atable_ptr_type);
+ PUSH_FIELD (class_type_node, field, "atable_syms",
+ symbols_array_ptr_type);
+ PUSH_FIELD (class_type_node, field, "itable", itable_ptr_type);
+ PUSH_FIELD (class_type_node, field, "itable_syms",
+ symbols_array_ptr_type);
+ PUSH_FIELD (class_type_node, field, "catch_classes", ptr_type_node);
PUSH_FIELD (class_type_node, field, "interfaces",
build_pointer_type (class_ptr_type));
PUSH_FIELD (class_type_node, field, "loader", ptr_type_node);
PUSH_FIELD (class_type_node, field, "idt", ptr_type_node);
PUSH_FIELD (class_type_node, field, "arrayclass", ptr_type_node);
PUSH_FIELD (class_type_node, field, "protectionDomain", ptr_type_node);
+ PUSH_FIELD (class_type_node, field, "assertion_table", ptr_type_node);
+ PUSH_FIELD (class_type_node, field, "hack_signers", ptr_type_node);
PUSH_FIELD (class_type_node, field, "chain", ptr_type_node);
+ PUSH_FIELD (class_type_node, field, "aux_info", ptr_type_node);
+ PUSH_FIELD (class_type_node, field, "engine", ptr_type_node);
for (t = TYPE_FIELDS (class_type_node); t != NULL_TREE; t = TREE_CHAIN (t))
FIELD_PRIVATE (t) = 1;
push_super_field (class_type_node, object_type_node);
FINISH_RECORD (dtable_type);
build_decl (TYPE_DECL, get_identifier ("dispatchTable"), dtable_type);
-#define jint_type int_type_node
-#define jint_ptr_type ptr_type_node
-
jexception_type = make_node (RECORD_TYPE);
PUSH_FIELD (jexception_type, field, "start_pc", ptr_type_node);
PUSH_FIELD (jexception_type, field, "end_pc", ptr_type_node);
PUSH_FIELD (lineNumbers_type, field, "length", unsigned_int_type_node);
FINISH_RECORD (lineNumbers_type);
-#define instn_ptr_type_node ptr_type_node /* XXX JH */
-
-#define lineNumbers_ptr_type_node build_pointer_type(lineNumbers_type)
-
PUSH_FIELD (method_type_node, field, "name", utf8const_ptr_type);
PUSH_FIELD (method_type_node, field, "signature", utf8const_ptr_type);
PUSH_FIELD (method_type_node, field, "accflags", access_flags_type_node);
endlink = end_params_node = tree_cons (NULL_TREE, void_type_node, NULL_TREE);
- t = tree_cons (NULL_TREE, class_ptr_type,
- tree_cons (NULL_TREE, int_type_node, endlink));
+ t = tree_cons (NULL_TREE, class_ptr_type, endlink);
alloc_object_node = builtin_function ("_Jv_AllocObject",
build_function_type (ptr_type_node, t),
0, NOT_BUILT_IN, NULL, NULL_TREE);
0, NOT_BUILT_IN, NULL, NULL_TREE);
throw_node = builtin_function ("_Jv_Throw",
- build_function_type (ptr_type_node, t),
+ build_function_type (void_type_node, t),
0, NOT_BUILT_IN, NULL, NULL_TREE);
/* Mark throw_nodes as `noreturn' functions with side effects. */
TREE_THIS_VOLATILE (throw_node) = 1;
TREE_SIDE_EFFECTS (throw_node) = 1;
- t = build_function_type (int_type_node, endlink);
+ t = build_function_type (void_type_node, tree_cons (NULL_TREE, ptr_type_node,
+ endlink));
soft_monitorenter_node
= builtin_function ("_Jv_MonitorEnter", t, 0, NOT_BUILT_IN,
NULL, NULL_TREE);
soft_monitorexit_node
= builtin_function ("_Jv_MonitorExit", t, 0, NOT_BUILT_IN,
NULL, NULL_TREE);
-
- t = tree_cons (NULL_TREE, int_type_node,
+
+ t = tree_cons (NULL_TREE, ptr_type_node,
tree_cons (NULL_TREE, int_type_node, endlink));
soft_newarray_node
= builtin_function ("_Jv_NewPrimArray",
- build_function_type(ptr_type_node, t),
+ build_function_type (ptr_type_node, t),
0, NOT_BUILT_IN, NULL, NULL_TREE);
DECL_IS_MALLOC (soft_newarray_node) = 1;
t = tree_cons (NULL_TREE, int_type_node,
tree_cons (NULL_TREE, class_ptr_type,
- tree_cons (NULL_TREE, object_ptr_type_node, endlink)));
+ tree_cons (NULL_TREE, object_ptr_type_node,
+ endlink)));
soft_anewarray_node
= builtin_function ("_Jv_NewObjectArray",
build_function_type (ptr_type_node, t),
= builtin_function ("_Jv_IsInstanceOf",
build_function_type (boolean_type_node, t),
0, NOT_BUILT_IN, NULL, NULL_TREE);
+ DECL_IS_PURE (soft_instanceof_node) = 1;
t = tree_cons (NULL_TREE, object_ptr_type_node,
tree_cons (NULL_TREE, object_ptr_type_node, endlink));
soft_checkarraystore_node
= builtin_function ("_Jv_LookupInterfaceMethodIdx",
build_function_type (ptr_type_node, t),
0, NOT_BUILT_IN, NULL, NULL_TREE);
-
+ DECL_IS_PURE (soft_lookupinterfacemethod_node) = 1;
+ t = tree_cons (NULL_TREE, ptr_type_node,
+ tree_cons (NULL_TREE, ptr_type_node,
+ tree_cons (NULL_TREE, ptr_type_node, endlink)));
+ soft_lookupinterfacemethodbyname_node
+ = builtin_function ("_Jv_LookupInterfaceMethod",
+ build_function_type (ptr_type_node, t),
+ 0, NOT_BUILT_IN, NULL, NULL_TREE);
t = tree_cons (NULL_TREE, object_ptr_type_node,
tree_cons (NULL_TREE, ptr_type_node,
tree_cons (NULL_TREE, ptr_type_node,
0, NOT_BUILT_IN, NULL, NULL_TREE);
soft_jnipopsystemframe_node
= builtin_function ("_Jv_JNI_PopSystemFrame",
- build_function_type (ptr_type_node, t),
+ build_function_type (void_type_node, t),
0, NOT_BUILT_IN, NULL, NULL_TREE);
+ t = tree_cons (NULL_TREE, int_type_node,
+ tree_cons (NULL_TREE, int_type_node, endlink));
soft_idiv_node
= builtin_function ("_Jv_divI",
build_function_type (int_type_node, t),
build_function_type (int_type_node, t),
0, NOT_BUILT_IN, NULL, NULL_TREE);
+ t = tree_cons (NULL_TREE, long_type_node,
+ tree_cons (NULL_TREE, long_type_node, endlink));
soft_ldiv_node
= builtin_function ("_Jv_divJ",
build_function_type (long_type_node, t),
eh_personality_libfunc = init_one_libfunc (USING_SJLJ_EXCEPTIONS
? "__gcj_personality_sj0"
: "__gcj_personality_v0");
- lang_eh_runtime_type = prepare_eh_table_type;
+
+ lang_eh_runtime_type = do_nothing;
init_jcf_parse ();
initialize_builtins ();
-
soft_fmod_node = built_in_decls[BUILT_IN_FMOD];
#if 0
soft_fmodf_node = built_in_decls[BUILT_IN_FMODF];
#endif
+
+ parse_version ();
}
tree
lookup_name (tree name)
{
- register tree val;
+ tree val;
if (current_binding_level != global_binding_level
&& IDENTIFIER_LOCAL_VALUE (name))
val = IDENTIFIER_LOCAL_VALUE (name);
static tree
lookup_name_current_level (tree name)
{
- register tree t;
+ tree t;
if (current_binding_level == global_binding_level)
return IDENTIFIER_GLOBAL_VALUE (name);
void
push_labeled_block (tree lb)
{
- register tree name = DECL_NAME (LABELED_BLOCK_LABEL (lb));
- register struct binding_level *b = current_binding_level;
+ tree name = DECL_NAME (LABELED_BLOCK_LABEL (lb));
+ struct binding_level *b = current_binding_level;
tree oldlocal = IDENTIFIER_LOCAL_VALUE (name);
if (oldlocal != 0)
b->shadowed = tree_cons (name, oldlocal, b->shadowed);
tree
pushdecl (tree x)
{
- register tree t;
- register tree name = DECL_NAME (x);
- register struct binding_level *b = current_binding_level;
+ tree t;
+ tree name = DECL_NAME (x);
+ struct binding_level *b = current_binding_level;
if (TREE_CODE (x) != TYPE_DECL)
DECL_CONTEXT (x) = current_function_decl;
/* error_mark_node is 0 for a while during initialization! */
{
t = 0;
- error ("%H'%D' used prior to declaration",
- &DECL_SOURCE_LOCATION (x), x);
+ error ("%J'%D' used prior to declaration", x, x);
}
/* If we're naming a hitherto-unnamed type, set its TYPE_NAME
&& chain_member (oldlocal, current_binding_level->level_chain->names))
{
if (TREE_CODE (oldlocal) == PARM_DECL)
- pedwarn ("declaration of `%s' shadows a parameter",
+ pedwarn ("declaration of %qs shadows a parameter",
IDENTIFIER_POINTER (name));
else
- pedwarn ("declaration of `%s' shadows a symbol from the parameter list",
+ pedwarn ("declaration of %qs shadows a symbol from the parameter list",
IDENTIFIER_POINTER (name));
}
but there is no way to tell it's not a definition. */
;
else if (oldlocal != 0 && TREE_CODE (oldlocal) == PARM_DECL)
- warnstring = "declaration of `%s' shadows a parameter";
+ warnstring = "declaration of %qs shadows a parameter";
else if (oldlocal != 0)
- warnstring = "declaration of `%s' shadows previous local";
+ warnstring = "declaration of %qs shadows previous local";
else if (IDENTIFIER_GLOBAL_VALUE (name) != 0
&& IDENTIFIER_GLOBAL_VALUE (name) != error_mark_node)
- warnstring = "declaration of `%s' shadows global declaration";
+ warnstring = "declaration of %qs shadows global declaration";
if (warnstring)
warning (warnstring, IDENTIFIER_POINTER (name));
tree
pushdecl_top_level (tree x)
{
- register tree t;
- register struct binding_level *b = current_binding_level;
+ tree t;
+ struct binding_level *b = current_binding_level;
current_binding_level = global_binding_level;
t = pushdecl (x);
return t;
}
+/* Like pushdecl, only it places X in FUNCTION_BINDING_LEVEL, if appropriate. */
+
+tree
+pushdecl_function_level (tree x)
+{
+ tree t;
+ struct binding_level *b = current_binding_level;
+
+ current_binding_level = function_binding_level;
+ t = pushdecl (x);
+ current_binding_level = b;
+ return t;
+}
+
/* Nonzero if we are currently in the global binding level. */
int
make_binding_level (void)
{
/* NOSTRICT */
- return xmalloc (sizeof (struct binding_level));
+ return ggc_alloc_cleared (sizeof (struct binding_level));
}
void
pushlevel (int unused ATTRIBUTE_UNUSED)
{
- register struct binding_level *newlevel = NULL_BINDING_LEVEL;
+ struct binding_level *newlevel = NULL_BINDING_LEVEL;
#if 0
/* If this is the top level of a function,
#if defined(DEBUG_JAVA_BINDING_LEVELS)
newlevel->binding_depth = binding_depth;
indent ();
- fprintf (stderr, "push %s level 0x%08x pc %d\n",
+ fprintf (stderr, "push %s level %p pc %d\n",
(is_class_level) ? "class" : "block", newlevel, current_pc);
is_class_level = 0;
binding_depth++;
tree
poplevel (int keep, int reverse, int functionbody)
{
- register tree link;
+ tree link;
/* The chain of decls was accumulated in reverse order.
Put it into forward order, just for cleanliness. */
tree decls;
tree subblocks = current_binding_level->blocks;
tree block = 0;
tree decl;
- int block_previously_created;
+ tree bind = 0;
#if defined(DEBUG_JAVA_BINDING_LEVELS)
binding_depth--;
indent ();
if (current_binding_level->end_pc != LARGEST_PC)
- fprintf (stderr, "pop %s level 0x%08x pc %d (end pc %d)\n",
+ fprintf (stderr, "pop %s level %p pc %d (end pc %d)\n",
(is_class_level) ? "class" : "block", current_binding_level, current_pc,
current_binding_level->end_pc);
else
- fprintf (stderr, "pop %s level 0x%08x pc %d\n",
+ fprintf (stderr, "pop %s level %p pc %d\n",
(is_class_level) ? "class" : "block", current_binding_level, current_pc);
#if 0
if (is_class_level != (current_binding_level == class_binding_level))
else
decls = current_binding_level->names;
- /* Output any nested inline functions within this block
- if they weren't already output. */
-
for (decl = decls; decl; decl = TREE_CHAIN (decl))
- if (TREE_CODE (decl) == FUNCTION_DECL
- && ! TREE_ASM_WRITTEN (decl)
- && DECL_INITIAL (decl) != 0
- && TREE_ADDRESSABLE (decl))
- {
- /* If this decl was copied from a file-scope decl
- on account of a block-scope extern decl,
- propagate TREE_ADDRESSABLE to the file-scope decl.
-
- DECL_ABSTRACT_ORIGIN can be set to itself if warn_return_type is
- true, since then the decl goes through save_for_inline_copying. */
- if (DECL_ABSTRACT_ORIGIN (decl) != 0
- && DECL_ABSTRACT_ORIGIN (decl) != decl)
- TREE_ADDRESSABLE (DECL_ABSTRACT_ORIGIN (decl)) = 1;
- else
- {
- push_function_context ();
- output_inline_function (decl);
- pop_function_context ();
- }
- }
+ if (TREE_CODE (decl) == VAR_DECL
+ && DECL_LANG_SPECIFIC (decl) != NULL
+ && DECL_LOCAL_SLOT_NUMBER (decl))
+ LOCAL_VAR_OUT_OF_SCOPE_P (decl) = 1;
/* If there were any declarations in that level,
or if this level is a function body,
create a BLOCK to record them for the life of this function. */
block = 0;
- block_previously_created = (current_binding_level->this_block != 0);
- if (block_previously_created)
- block = current_binding_level->this_block;
- else if (keep || functionbody)
- block = make_node (BLOCK);
+ if (keep || functionbody)
+ {
+ block = make_node (BLOCK);
+ TREE_TYPE (block) = void_type_node;
+ }
+
+ if (current_binding_level->exception_range)
+ expand_end_java_handler (current_binding_level->exception_range);
+
if (block != 0)
{
- BLOCK_VARS (block) = decls;
+ /* If any statements have been generated at this level, create a
+ BIND_EXPR to hold them and copy the variables to it. This
+ only applies to the bytecode compiler. */
+ if (current_binding_level->stmts)
+ {
+ tree decl = decls;
+ tree *var = &BLOCK_VARS (block);
+
+ /* Copy decls from names list, ignoring labels. */
+ while (decl)
+ {
+ tree next = TREE_CHAIN (decl);
+ if (TREE_CODE (decl) != LABEL_DECL)
+ {
+ *var = decl;
+ var = &TREE_CHAIN (decl);
+ }
+ decl = next;
+ }
+ *var = NULL;
+
+ bind = build3 (BIND_EXPR, TREE_TYPE (block), BLOCK_VARS (block),
+ BLOCK_EXPR_BODY (block), block);
+ BIND_EXPR_BODY (bind) = current_binding_level->stmts;
+
+ if (BIND_EXPR_BODY (bind)
+ && TREE_SIDE_EFFECTS (BIND_EXPR_BODY (bind)))
+ TREE_SIDE_EFFECTS (bind) = 1;
+
+ /* FIXME: gimplifier brain damage. */
+ if (BIND_EXPR_BODY (bind) == NULL)
+ BIND_EXPR_BODY (bind) = build_java_empty_stmt ();
+
+ current_binding_level->stmts = NULL;
+ }
+ else
+ {
+ BLOCK_VARS (block) = decls;
+ }
BLOCK_SUBBLOCKS (block) = subblocks;
- }
+ }
/* In each subblock, record that this is its superior. */
#if 0
for (link = named_labels; link; link = TREE_CHAIN (link))
{
- register tree label = TREE_VALUE (link);
+ tree label = TREE_VALUE (link);
if (DECL_INITIAL (label) == 0)
{
- error ("%Hlabel '%D' used but not defined",
- &DECL_SOURCE_LOCATION (label), label);
+ error ("%Jlabel '%D' used but not defined", label, label);
/* Avoid crashing later. */
define_label (input_location, DECL_NAME (label));
}
else if (warn_unused[UNUSED_LABEL] && !TREE_USED (label))
- warning ("%Hlabel '%D' defined but not used",
- &DECL_SOURCE_LOCATION (label), label);
+ warning ("%Jlabel '%D' defined but not used", label, label);
IDENTIFIER_LABEL_VALUE (DECL_NAME (label)) = 0;
/* Put the labels into the "variables" of the
/* Pop the current level, and free the structure for reuse. */
{
- register struct binding_level *level = current_binding_level;
+ struct binding_level *level = current_binding_level;
current_binding_level = current_binding_level->level_chain;
level->level_chain = free_binding_level;
/* Dispose of the block that we just made inside some higher level. */
if (functionbody)
- DECL_INITIAL (current_function_decl) = block;
- else if (block)
{
- if (!block_previously_created)
- current_binding_level->blocks
- = chainon (current_binding_level->blocks, block);
+ DECL_INITIAL (current_function_decl) = block;
+ DECL_SAVED_TREE (current_function_decl) = bind;
+ }
+ else
+ {
+ if (block)
+ {
+ current_binding_level->blocks
+ = chainon (current_binding_level->blocks, block);
+ }
+ /* If we did not make a block for the level just exited,
+ any blocks made for inner levels
+ (since they cannot be recorded as subblocks in that level)
+ must be carried forward so they will later become subblocks
+ of something else. */
+ else if (subblocks)
+ current_binding_level->blocks
+ = chainon (current_binding_level->blocks, subblocks);
+
+ if (bind)
+ java_add_stmt (bind);
}
- /* If we did not make a block for the level just exited,
- any blocks made for inner levels
- (since they cannot be recorded as subblocks in that level)
- must be carried forward so they will later become subblocks
- of something else. */
- else if (subblocks)
- current_binding_level->blocks
- = chainon (current_binding_level->blocks, subblocks);
-
- /* Set the TYPE_CONTEXTs for all of the tagged types belonging to this
- binding contour so that they point to the appropriate construct, i.e.
- either to the current FUNCTION_DECL node, or else to the BLOCK node
- we just constructed.
-
- Note that for tagged types whose scope is just the formal parameter
- list for some function type specification, we can't properly set
- their TYPE_CONTEXTs here, because we don't have a pointer to the
- appropriate FUNCTION_TYPE node readily available to us. For those
- cases, the TYPE_CONTEXTs of the relevant tagged type nodes get set
- in `grokdeclarator' as soon as we have created the FUNCTION_TYPE
- node which will represent the "scope" for these "parameter list local"
- tagged types.
- */
if (block)
TREE_USED (block) = 1;
DECL_LOCAL_START_PC (pending_local_decls) <= pc)
{
tree *ptr = &pending_local_decls;
- tree decl = *ptr;
+ tree decl = *ptr, next;
int end_pc = DECL_LOCAL_END_PC (decl);
while (*ptr != NULL_TREE
pending_local_decls = *ptr;
*ptr = NULL_TREE;
- /* Force non-nested range to be nested in current range. */
+ /* Force non-nested range to be nested in current range by
+ truncating variable lifetimes. */
if (end_pc > current_binding_level->end_pc)
- end_pc = current_binding_level->end_pc;
+ {
+ end_pc = current_binding_level->end_pc;
+ DECL_LOCAL_END_PC (decl) = end_pc;
+ }
maybe_start_try (pc, end_pc);
pushlevel (1);
- expand_start_bindings (0);
current_binding_level->end_pc = end_pc;
current_binding_level->start_pc = pc;
- current_binding_level->names = decl;
- for ( ; decl != NULL_TREE; decl = TREE_CHAIN (decl))
+ current_binding_level->names = NULL;
+ for ( ; decl != NULL_TREE; decl = next)
{
+ next = TREE_CHAIN (decl);
push_jvm_slot (DECL_LOCAL_SLOT_NUMBER (decl), decl);
+ pushdecl (decl);
+ initialize_local_variable (decl, DECL_LOCAL_SLOT_NUMBER (decl));
}
}
current_pc = pc;
#endif
+ /* FIXME: I'm pretty sure that this is wrong. Variable scopes are
+ inclusive, so a variable is live if pc == end_pc. Here, we
+ terminate a range if the current pc is equal to the end of the
+ range, and this is *before* we have generated code for the
+ instruction at end_pc. We're closing a binding level one
+ instruction too early.*/
while (current_binding_level->end_pc <= pc)
- {
- expand_end_bindings (getdecls (), 1, 0);
- maybe_end_try (current_binding_level->start_pc, pc);
- poplevel (1, 0, 0);
- }
- maybe_end_try (0, pc);
+ poplevel (1, 0, 0);
}
/* Terminate any binding which began during the range beginning at
while (current_binding_level->start_pc > start_pc)
{
if (pedantic && current_binding_level->start_pc > start_pc)
- warning ("%HIn %D: overlapped variable and exception ranges at %d",
- &DECL_SOURCE_LOCATION (current_function_decl),
- current_function_decl, current_binding_level->start_pc);
- expand_end_bindings (getdecls (), 1, 0);
+ warning ("%JIn %D: overlapped variable and exception ranges at %d",
+ current_function_decl, current_function_decl,
+ current_binding_level->start_pc);
poplevel (1, 0, 0);
}
}
= chainon (current_binding_level->blocks, block);
}
-/* Set the BLOCK node for the innermost scope
- (the one we are currently in). */
-
-void
-set_block (tree block)
-{
- current_binding_level->this_block = block;
- current_binding_level->names = chainon (current_binding_level->names,
- BLOCK_VARS (block));
- current_binding_level->blocks = chainon (current_binding_level->blocks,
- BLOCK_SUBBLOCKS (block));
-}
-
/* integrate_decl_tree calls this function. */
void
tree decl = build_decl (VAR_DECL, name, type);
if (end_pc > DECL_CODE_LENGTH (current_function_decl))
{
- warning ("%Hbad PC range for debug info for local '%D'",
- &DECL_SOURCE_LOCATION (decl), decl);
+ warning ("%Jbad PC range for debug info for local '%D'",
+ decl, decl);
end_pc = DECL_CODE_LENGTH (current_function_decl);
}
&& TYPE_PRECISION (restype) < TYPE_PRECISION (integer_type_node))
restype = integer_type_node;
result = build_decl (RESULT_DECL, NULL_TREE, restype);
+ DECL_ARTIFICIAL (result) = 1;
+ DECL_IGNORED_P (result) = 1;
DECL_CONTEXT (result) = fndecl;
DECL_RESULT (fndecl) = result;
}
}
void
-complete_start_java_method (tree fndecl)
-{
- if (! flag_emit_class_files)
- {
- /* Initialize the RTL code for the function. */
- init_function_start (fndecl);
-
- /* Set up parameters and prepare for return, for the function. */
- expand_function_start (fndecl, 0);
- }
-
-#if 0
- /* If this fcn was already referenced via a block-scope `extern' decl (or
- an implicit decl), propagate certain information about the usage. */
- if (TREE_ADDRESSABLE (DECL_ASSEMBLER_NAME (current_function_decl)))
- TREE_ADDRESSABLE (current_function_decl) = 1;
-
-#endif
-
- if (METHOD_STATIC (fndecl) && ! METHOD_PRIVATE (fndecl)
- && ! flag_emit_class_files
- && ! DECL_CLINIT_P (fndecl)
- && ! CLASS_INTERFACE (TYPE_NAME (current_class)))
- {
- tree clas = DECL_CONTEXT (fndecl);
- tree init = build (CALL_EXPR, void_type_node,
- build_address_of (soft_initclass_node),
- build_tree_list (NULL_TREE, build_class_ref (clas)),
- NULL_TREE);
- TREE_SIDE_EFFECTS (init) = 1;
- expand_expr_stmt (init);
- }
-
- /* Push local variables. Function compiled from source code are
- using a different local variables management, and for them,
- pushlevel shouldn't be called from here. */
- if (!CLASS_FROM_SOURCE_P (DECL_CONTEXT (fndecl)))
- {
- pushlevel (2);
- if (! flag_emit_class_files)
- expand_start_bindings (1);
- }
-
- if (METHOD_SYNCHRONIZED (fndecl) && ! flag_emit_class_files)
- {
- /* Wrap function body with a monitorenter plus monitorexit cleanup. */
- tree enter, exit, lock;
- if (METHOD_STATIC (fndecl))
- lock = build_class_ref (DECL_CONTEXT (fndecl));
- else
- lock = DECL_ARGUMENTS (fndecl);
- BUILD_MONITOR_ENTER (enter, lock);
- BUILD_MONITOR_EXIT (exit, lock);
- if (!CLASS_FROM_SOURCE_P (DECL_CONTEXT (fndecl)))
- {
- expand_expr_stmt (enter);
- expand_decl_cleanup (NULL_TREE, exit);
- }
- else
- {
- tree function_body = DECL_FUNCTION_BODY (fndecl);
- tree body = BLOCK_EXPR_BODY (function_body);
- lock = build (COMPOUND_EXPR, void_type_node,
- enter,
- build (TRY_FINALLY_EXPR, void_type_node, body, exit));
- TREE_SIDE_EFFECTS (lock) = 1;
- BLOCK_EXPR_BODY (function_body) = lock;
- }
- }
-}
-
-void
start_java_method (tree fndecl)
{
tree tem, *ptr;
int i;
+ uniq = 0;
+
current_function_decl = fndecl;
announce_function (fndecl);
i = DECL_MAX_LOCALS(fndecl) + DECL_MAX_STACK(fndecl);
decl_map = make_tree_vec (i);
+ base_decl_map = make_tree_vec (i);
type_map = xrealloc (type_map, i * sizeof (tree));
#if defined(DEBUG_JAVA_BINDING_LEVELS)
parm_decl = build_decl (PARM_DECL, parm_name, parm_type);
DECL_CONTEXT (parm_decl) = fndecl;
- if (PROMOTE_PROTOTYPES
+ if (targetm.calls.promote_prototypes (parm_type)
&& TYPE_PRECISION (parm_type) < TYPE_PRECISION (integer_type_node)
&& INTEGRAL_TYPE_P (parm_type))
parm_type = integer_type_node;
type_map[i++] = NULL_TREE;
build_result_decl (fndecl);
- complete_start_java_method (fndecl);
+
+ /* Push local variables. */
+ pushlevel (2);
+
+ function_binding_level = current_binding_level;
}
void
{
tree fndecl = current_function_decl;
- expand_end_bindings (getdecls (), 1, 0);
/* pop out of function */
poplevel (1, 1, 0);
poplevel (1, 0, 1);
BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
+
+ if (DECL_SAVED_TREE (fndecl))
+ {
+ tree fbody, block_body;
+ /* Before we check initialization, attached all class initialization
+ variable to the block_body */
+ fbody = DECL_SAVED_TREE (fndecl);
+ block_body = BIND_EXPR_BODY (fbody);
+ htab_traverse (DECL_FUNCTION_INIT_TEST_TABLE (fndecl),
+ attach_init_test_initialization_flags, block_body);
+ }
- /* Generate rtl for function exit. */
- expand_function_end ();
-
- /* Run the optimizers and output assembler code for this function. */
- rest_of_compilation (fndecl);
+ flag_unit_at_a_time = 0;
+ finish_method (fndecl);
+ if (! flag_unit_at_a_time)
+ {
+ /* Nulling these fields when we no longer need them saves
+ memory. */
+ DECL_SAVED_TREE (fndecl) = NULL;
+ DECL_STRUCT_FUNCTION (fndecl) = NULL;
+ DECL_INITIAL (fndecl) = NULL_TREE;
+ }
current_function_decl = NULL_TREE;
}
-/* Dump FUNCTION_DECL FN as tree dump PHASE. */
+/* Prepare a method for expansion. */
-static void
-dump_function (enum tree_dump_index phase, tree fn)
+void
+finish_method (tree fndecl)
{
- FILE *stream;
- int flags;
+ tree *tp = &DECL_SAVED_TREE (fndecl);
- stream = dump_begin (phase, &flags);
- if (stream)
+ /* Wrap body of synchronized methods in a monitorenter,
+ plus monitorexit cleanup. */
+ if (METHOD_SYNCHRONIZED (fndecl))
{
- dump_node (fn, TDF_SLIM | flags, stream);
- dump_end (phase, stream);
+ tree enter, exit, lock;
+ if (METHOD_STATIC (fndecl))
+ lock = build_class_ref (DECL_CONTEXT (fndecl));
+ else
+ lock = DECL_ARGUMENTS (fndecl);
+ BUILD_MONITOR_ENTER (enter, lock);
+ BUILD_MONITOR_EXIT (exit, lock);
+ *tp = build2 (COMPOUND_EXPR, void_type_node, enter,
+ build2 (TRY_FINALLY_EXPR, void_type_node, *tp, exit));
}
-}
-
-void java_optimize_inline (tree fndecl)
-{
- if (flag_inline_trees)
+
+ /* Prepend class initialization for static methods reachable from
+ other classes. */
+ if (METHOD_STATIC (fndecl)
+ && (! METHOD_PRIVATE (fndecl)
+ || INNER_CLASS_P (DECL_CONTEXT (fndecl)))
+ && ! DECL_CLINIT_P (fndecl)
+ && ! CLASS_INTERFACE (TYPE_NAME (DECL_CONTEXT (fndecl))))
{
- timevar_push (TV_INTEGRATION);
- optimize_inline_calls (fndecl);
- timevar_pop (TV_INTEGRATION);
- dump_function (TDI_inlined, fndecl);
+ tree clas = DECL_CONTEXT (fndecl);
+ tree init = build3 (CALL_EXPR, void_type_node,
+ build_address_of (soft_initclass_node),
+ build_tree_list (NULL_TREE, build_class_ref (clas)),
+ NULL_TREE);
+ *tp = build2 (COMPOUND_EXPR, TREE_TYPE (*tp), init, *tp);
}
+
+ /* Convert function tree to GENERIC prior to inlining. */
+ java_genericize (fndecl);
+
+ /* Store the end of the function, so that we get good line number
+ info for the epilogue. */
+ if (DECL_STRUCT_FUNCTION (fndecl))
+ cfun = DECL_STRUCT_FUNCTION (fndecl);
+ else
+ allocate_struct_function (fndecl);
+#ifdef USE_MAPPED_LOCATION
+ cfun->function_end_locus = DECL_FUNCTION_LAST_LINE (fndecl);
+#else
+ cfun->function_end_locus.file = DECL_SOURCE_FILE (fndecl);
+ cfun->function_end_locus.line = DECL_FUNCTION_LAST_LINE (fndecl);
+#endif
+
+ /* Defer inlining and expansion to the cgraph optimizers. */
+ cgraph_finalize_function (fndecl, false);
+}
+
+/* Optimize and expand a function's entire body. */
+
+void
+java_expand_body (tree fndecl)
+{
+ tree_rest_of_compilation (fndecl);
}
/* We pessimistically marked all methods and fields external until we
/* If we've already constructed DECL_RTL, give encode_section_info
a second chance, now that we've changed the flags. */
if (DECL_RTL_SET_P (decl))
- make_decl_rtl (decl, NULL);
+ make_decl_rtl (decl);
}
void
java_mark_decl_local (t);
}
+/* Add a statement to a compound_expr. */
+
+tree
+add_stmt_to_compound (tree existing, tree type, tree stmt)
+{
+ if (!stmt)
+ return existing;
+ else if (existing)
+ {
+ tree expr = build2 (COMPOUND_EXPR, type, existing, stmt);
+ TREE_SIDE_EFFECTS (expr) = TREE_SIDE_EFFECTS (existing)
+ | TREE_SIDE_EFFECTS (stmt);
+ return expr;
+ }
+ else
+ return stmt;
+}
+
+/* Add a statement to the compound_expr currently being
+ constructed. */
+
+tree
+java_add_stmt (tree stmt)
+{
+ if (input_filename)
+ SET_EXPR_LOCATION (stmt, input_location);
+
+ return current_binding_level->stmts
+ = add_stmt_to_compound (current_binding_level->stmts,
+ TREE_TYPE (stmt), stmt);
+}
+
+/* Add a variable to the current scope. */
+
+tree
+java_add_local_var (tree decl)
+{
+ tree *vars = ¤t_binding_level->names;
+ tree next = *vars;
+ TREE_CHAIN (decl) = next;
+ *vars = decl;
+ DECL_CONTEXT (decl) = current_function_decl;
+ MAYBE_CREATE_VAR_LANG_DECL_SPECIFIC (decl);
+ return decl;
+}
+
+/* Return a pointer to the compound_expr currently being
+ constructed. */
+
+tree *
+get_stmts (void)
+{
+ return ¤t_binding_level->stmts;
+}
+
+/* Register an exception range as belonging to the current binding
+ level. There may only be one: if there are more, we'll create more
+ binding levels. However, each range can have multiple handlers,
+ and these are expanded when we call expand_end_java_handler(). */
+
+void
+register_exception_range (struct eh_range *range, int pc, int end_pc)
+{
+ if (current_binding_level->exception_range)
+ abort ();
+ current_binding_level->exception_range = range;
+ current_binding_level->end_pc = end_pc;
+ current_binding_level->start_pc = pc;
+}
+
#include "gt-java-decl.h"
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