-189ea81cc758e000325fd6cca7882c252d33f8f0
+f439989e483b7c2eada6ddcf6e730a791cce603f
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.
Expression_list* args = new Expression_list();
args->push_back(this->operand_address(inserter, this->left_));
args->push_back(this->operand_address(inserter, this->right_));
- args->push_back(Expression::make_type_info(at, TYPE_INFO_SIZE));
Expression* ret = Expression::make_call(func, args, false, loc);
// parse tree is lowered.
void
-Gogo::queue_specific_type_function(Type* type, Named_type* name,
+Gogo::queue_specific_type_function(Type* type, Named_type* name, int64_t size,
const std::string& hash_name,
Function_type* hash_fntype,
const std::string& equal_name,
{
go_assert(!this->specific_type_functions_are_written_);
go_assert(!this->in_global_scope());
- Specific_type_function* tsf = new Specific_type_function(type, name,
+ Specific_type_function* tsf = new Specific_type_function(type, name, size,
hash_name,
hash_fntype,
equal_name,
case Type::TYPE_NAMED:
{
Named_type* nt = t->named_type();
- if (!t->compare_is_identity(this->gogo_) && t->is_comparable())
+ if (t->needs_specific_type_functions(this->gogo_))
t->type_functions(this->gogo_, nt, NULL, NULL, &hash_fn, &equal_fn);
// If this is a struct type, we don't want to make functions
case Type::TYPE_STRUCT:
case Type::TYPE_ARRAY:
- if (!t->compare_is_identity(this->gogo_) && t->is_comparable())
+ if (t->needs_specific_type_functions(this->gogo_))
t->type_functions(this->gogo_, NULL, NULL, NULL, &hash_fn, &equal_fn);
break;
{
Specific_type_function* tsf = this->specific_type_functions_.back();
this->specific_type_functions_.pop_back();
- tsf->type->write_specific_type_functions(this, tsf->name,
+ tsf->type->write_specific_type_functions(this, tsf->name, tsf->size,
tsf->hash_name,
tsf->hash_fntype,
tsf->equal_name,
// used when a type-specific function is needed when not at the top
// level.
void
- queue_specific_type_function(Type* type, Named_type* name,
+ queue_specific_type_function(Type* type, Named_type* name, int64_t size,
const std::string& hash_name,
Function_type* hash_fntype,
const std::string& equal_name,
{
Type* type;
Named_type* name;
+ int64_t size;
std::string hash_name;
Function_type* hash_fntype;
std::string equal_name;
Function_type* equal_fntype;
- Specific_type_function(Type* atype, Named_type* aname,
+ Specific_type_function(Type* atype, Named_type* aname, int64_t asize,
const std::string& ahash_name,
Function_type* ahash_fntype,
const std::string& aequal_name,
Function_type* aequal_fntype)
- : type(atype), name(aname), hash_name(ahash_name),
+ : type(atype), name(aname), size(asize), hash_name(ahash_name),
hash_fntype(ahash_fntype), equal_name(aequal_name),
equal_fntype(aequal_fntype)
{ }
va_end(ap);
- return Type::make_struct_type(sfl, bloc);
+ Struct_type* ret = Type::make_struct_type(sfl, bloc);
+ ret->set_is_struct_incomparable();
+ return ret;
}
// A list of builtin named types.
Typed_identifier_list *params = new Typed_identifier_list();
params->push_back(Typed_identifier("key", unsafe_pointer_type, bloc));
params->push_back(Typed_identifier("seed", uintptr_type, bloc));
- params->push_back(Typed_identifier("key_size", uintptr_type, bloc));
Typed_identifier_list* results = new Typed_identifier_list();
results->push_back(Typed_identifier("", uintptr_type, bloc));
params = new Typed_identifier_list();
params->push_back(Typed_identifier("key1", unsafe_pointer_type, bloc));
params->push_back(Typed_identifier("key2", unsafe_pointer_type, bloc));
- params->push_back(Typed_identifier("key_size", uintptr_type, bloc));
results = new Typed_identifier_list();
results->push_back(Typed_identifier("", Type::lookup_bool_type(), bloc));
return ret;
}
+// Return whether this type needs specially built type functions.
+// This returns true for types that are comparable and either can not
+// use an identity comparison, or are a non-standard size.
+
+bool
+Type::needs_specific_type_functions(Gogo* gogo)
+{
+ if (!this->is_comparable())
+ return false;
+ if (!this->compare_is_identity(gogo))
+ return true;
+
+ // We create a few predeclared types for type descriptors; they are
+ // really just for the backend and don't need hash or equality
+ // functions.
+ Named_type* nt = this->named_type();
+ if (nt != NULL && Linemap::is_predeclared_location(nt->location()))
+ return false;
+
+ int64_t size, align;
+ if (!this->backend_type_size(gogo, &size)
+ || !this->backend_type_align(gogo, &align))
+ {
+ go_assert(saw_errors());
+ return false;
+ }
+ // This switch matches the one in Type::type_functions.
+ switch (size)
+ {
+ case 0:
+ case 1:
+ case 2:
+ return align < 2;
+ case 4:
+ return align < 4;
+ case 8:
+ return align < 8;
+ case 16:
+ // 8, not 16, because of how runtime.memequal128 is written.
+ return align < 8;
+ default:
+ return true;
+ }
+}
+
// Set *HASH_FN and *EQUAL_FN to the runtime functions which compute a
// hash code for this type and which compare whether two values of
// this type are equal. If NAME is not NULL it is the name of this
params->push_back(Typed_identifier("key", unsafe_pointer_type,
bloc));
params->push_back(Typed_identifier("seed", uintptr_type, bloc));
- params->push_back(Typed_identifier("key_size", uintptr_type, bloc));
Typed_identifier_list* results = new Typed_identifier_list();
results->push_back(Typed_identifier("", uintptr_type, bloc));
bloc));
params->push_back(Typed_identifier("key2", unsafe_pointer_type,
bloc));
- params->push_back(Typed_identifier("key_size", uintptr_type, bloc));
Typed_identifier_list* results = new Typed_identifier_list();
results->push_back(Typed_identifier("", Type::lookup_bool_type(),
const char* equal_fnname;
if (this->compare_is_identity(gogo))
{
- hash_fnname = "runtime.memhash";
- equal_fnname = "__go_type_equal_identity";
+ int64_t size, align;
+ if (!this->backend_type_size(gogo, &size)
+ || !this->backend_type_align(gogo, &align))
+ {
+ go_assert(saw_errors());
+ return;
+ }
+ bool build_functions = false;
+ // This switch matches the one in Type::needs_specific_type_functions.
+ // The alignment tests are because of the memequal functions,
+ // which assume that the values are aligned as required for an
+ // integer of that size.
+ switch (size)
+ {
+ case 0:
+ hash_fnname = "runtime.memhash0";
+ equal_fnname = "runtime.memequal0";
+ break;
+ case 1:
+ hash_fnname = "runtime.memhash8";
+ equal_fnname = "runtime.memequal8";
+ break;
+ case 2:
+ if (align < 2)
+ build_functions = true;
+ else
+ {
+ hash_fnname = "runtime.memhash16";
+ equal_fnname = "runtime.memequal16";
+ }
+ break;
+ case 4:
+ if (align < 4)
+ build_functions = true;
+ else
+ {
+ hash_fnname = "runtime.memhash32";
+ equal_fnname = "runtime.memequal32";
+ }
+ break;
+ case 8:
+ if (align < 8)
+ build_functions = true;
+ else
+ {
+ hash_fnname = "runtime.memhash64";
+ equal_fnname = "runtime.memequal64";
+ }
+ break;
+ case 16:
+ // 8, not 16, because of how runtime.memequal128 is written.
+ if (align < 8)
+ build_functions = true;
+ else
+ {
+ hash_fnname = "runtime.memhash128";
+ equal_fnname = "runtime.memequal128";
+ }
+ break;
+ default:
+ build_functions = true;
+ break;
+ }
+ if (build_functions)
+ {
+ // We don't have a built-in function for a type of this size
+ // and alignment. Build a function to use that calls the
+ // generic hash/equality functions for identity, passing the size.
+ this->specific_type_functions(gogo, name, size, hash_fntype,
+ equal_fntype, hash_fn, equal_fn);
+ return;
+ }
}
else
{
go_unreachable();
case Type::TYPE_FLOAT:
- hash_fnname = "__go_type_hash_float";
- equal_fnname = "__go_type_equal_float";
+ switch (this->float_type()->bits())
+ {
+ case 32:
+ hash_fnname = "runtime.f32hash";
+ equal_fnname = "runtime.f32equal";
+ break;
+ case 64:
+ hash_fnname = "runtime.f64hash";
+ equal_fnname = "runtime.f64equal";
+ break;
+ default:
+ go_unreachable();
+ }
break;
case Type::TYPE_COMPLEX:
- hash_fnname = "__go_type_hash_complex";
- equal_fnname = "__go_type_equal_complex";
+ switch (this->complex_type()->bits())
+ {
+ case 64:
+ hash_fnname = "runtime.c64hash";
+ equal_fnname = "runtime.c64equal";
+ break;
+ case 128:
+ hash_fnname = "runtime.c128hash";
+ equal_fnname = "runtime.c128equal";
+ break;
+ default:
+ go_unreachable();
+ }
break;
case Type::TYPE_STRING:
- hash_fnname = "__go_type_hash_string";
- equal_fnname = "__go_type_equal_string";
+ hash_fnname = "runtime.strhash";
+ equal_fnname = "runtime.strequal";
break;
case Type::TYPE_STRUCT:
// This is a struct which can not be compared using a
// simple identity function. We need to build a function
// for comparison.
- this->specific_type_functions(gogo, name, hash_fntype,
+ this->specific_type_functions(gogo, name, -1, hash_fntype,
equal_fntype, hash_fn, equal_fn);
return;
}
// This is an array which can not be compared using a
// simple identity function. We need to build a
// function for comparison.
- this->specific_type_functions(gogo, name, hash_fntype,
+ this->specific_type_functions(gogo, name, -1, hash_fntype,
equal_fntype, hash_fn, equal_fn);
return;
}
Type::Type_functions Type::type_functions_table;
-// Handle a type function which is specific to a type: a struct or
-// array which can not use an identity comparison.
+// Handle a type function which is specific to a type: if SIZE == -1,
+// this is a struct or array that can not use an identity comparison.
+// Otherwise, it is a type that uses an identity comparison but is not
+// one of the standard supported sizes.
void
-Type::specific_type_functions(Gogo* gogo, Named_type* name,
+Type::specific_type_functions(Gogo* gogo, Named_type* name, int64_t size,
Function_type* hash_fntype,
Function_type* equal_fntype,
Named_object** hash_fn,
if (!is_defined_elsewhere)
{
if (gogo->in_global_scope())
- this->write_specific_type_functions(gogo, name, hash_name, hash_fntype,
- equal_name, equal_fntype);
+ this->write_specific_type_functions(gogo, name, size, hash_name,
+ hash_fntype, equal_name,
+ equal_fntype);
else
- gogo->queue_specific_type_function(this, name, hash_name, hash_fntype,
- equal_name, equal_fntype);
+ gogo->queue_specific_type_function(this, name, size, hash_name,
+ hash_fntype, equal_name,
+ equal_fntype);
}
}
// written specially.
void
-Type::write_specific_type_functions(Gogo* gogo, Named_type* name,
+Type::write_specific_type_functions(Gogo* gogo, Named_type* name, int64_t size,
const std::string& hash_name,
Function_type* hash_fntype,
const std::string& equal_name,
hash_fn->func_value()->set_is_type_specific_function();
gogo->start_block(bloc);
- if (name != NULL && name->real_type()->named_type() != NULL)
+ if (size != -1)
+ this->write_identity_hash(gogo, size);
+ else if (name != NULL && name->real_type()->named_type() != NULL)
this->write_named_hash(gogo, name, hash_fntype, equal_fntype);
else if (this->struct_type() != NULL)
this->struct_type()->write_hash_function(gogo, name, hash_fntype,
equal_fn->func_value()->set_is_type_specific_function();
gogo->start_block(bloc);
- if (name != NULL && name->real_type()->named_type() != NULL)
+ if (size != -1)
+ this->write_identity_equal(gogo, size);
+ else if (name != NULL && name->real_type()->named_type() != NULL)
this->write_named_equal(gogo, name);
else if (this->struct_type() != NULL)
this->struct_type()->write_equal_function(gogo, name);
equal_fn->func_value()->descriptor(gogo, equal_fn);
}
+// Write a hash function for a type that can use an identity hash but
+// is not one of the standard supported sizes. For example, this
+// would be used for the type [3]byte. This builds a return statement
+// that returns a call to the memhash function, passing the key and
+// seed from the function arguments (already constructed before this
+// is called), and the constant size.
+
+void
+Type::write_identity_hash(Gogo* gogo, int64_t size)
+{
+ Location bloc = Linemap::predeclared_location();
+
+ Type* unsafe_pointer_type = Type::make_pointer_type(Type::make_void_type());
+ Type* uintptr_type = Type::lookup_integer_type("uintptr");
+
+ Typed_identifier_list* params = new Typed_identifier_list();
+ params->push_back(Typed_identifier("key", unsafe_pointer_type, bloc));
+ params->push_back(Typed_identifier("seed", uintptr_type, bloc));
+ params->push_back(Typed_identifier("size", uintptr_type, bloc));
+
+ Typed_identifier_list* results = new Typed_identifier_list();
+ results->push_back(Typed_identifier("", uintptr_type, bloc));
+
+ Function_type* memhash_fntype = Type::make_function_type(NULL, params,
+ results, bloc);
+
+ Named_object* memhash =
+ Named_object::make_function_declaration("runtime.memhash", NULL,
+ memhash_fntype, bloc);
+ memhash->func_declaration_value()->set_asm_name("runtime.memhash");
+
+ Named_object* key_arg = gogo->lookup("key", NULL);
+ go_assert(key_arg != NULL);
+ Named_object* seed_arg = gogo->lookup("seed", NULL);
+ go_assert(seed_arg != NULL);
+
+ Expression* key_ref = Expression::make_var_reference(key_arg, bloc);
+ Expression* seed_ref = Expression::make_var_reference(seed_arg, bloc);
+ Expression* size_arg = Expression::make_integer_int64(size, uintptr_type,
+ bloc);
+ Expression_list* args = new Expression_list();
+ args->push_back(key_ref);
+ args->push_back(seed_ref);
+ args->push_back(size_arg);
+ Expression* func = Expression::make_func_reference(memhash, NULL, bloc);
+ Expression* call = Expression::make_call(func, args, false, bloc);
+
+ Expression_list* vals = new Expression_list();
+ vals->push_back(call);
+ Statement* s = Statement::make_return_statement(vals, bloc);
+ gogo->add_statement(s);
+}
+
+// Write an equality function for a type that can use an identity
+// equality comparison but is not one of the standard supported sizes.
+// For example, this would be used for the type [3]byte. This builds
+// a return statement that returns a call to the memequal function,
+// passing the two keys from the function arguments (already
+// constructed before this is called), and the constant size.
+
+void
+Type::write_identity_equal(Gogo* gogo, int64_t size)
+{
+ Location bloc = Linemap::predeclared_location();
+
+ Type* unsafe_pointer_type = Type::make_pointer_type(Type::make_void_type());
+ Type* uintptr_type = Type::lookup_integer_type("uintptr");
+
+ Typed_identifier_list* params = new Typed_identifier_list();
+ params->push_back(Typed_identifier("key1", unsafe_pointer_type, bloc));
+ params->push_back(Typed_identifier("key2", unsafe_pointer_type, bloc));
+ params->push_back(Typed_identifier("size", uintptr_type, bloc));
+
+ Typed_identifier_list* results = new Typed_identifier_list();
+ results->push_back(Typed_identifier("", Type::lookup_bool_type(), bloc));
+
+ Function_type* memequal_fntype = Type::make_function_type(NULL, params,
+ results, bloc);
+
+ Named_object* memequal =
+ Named_object::make_function_declaration("runtime.memequal", NULL,
+ memequal_fntype, bloc);
+ memequal->func_declaration_value()->set_asm_name("runtime.memequal");
+
+ Named_object* key1_arg = gogo->lookup("key1", NULL);
+ go_assert(key1_arg != NULL);
+ Named_object* key2_arg = gogo->lookup("key2", NULL);
+ go_assert(key2_arg != NULL);
+
+ Expression* key1_ref = Expression::make_var_reference(key1_arg, bloc);
+ Expression* key2_ref = Expression::make_var_reference(key2_arg, bloc);
+ Expression* size_arg = Expression::make_integer_int64(size, uintptr_type,
+ bloc);
+ Expression_list* args = new Expression_list();
+ args->push_back(key1_ref);
+ args->push_back(key2_ref);
+ args->push_back(size_arg);
+ Expression* func = Expression::make_func_reference(memequal, NULL, bloc);
+ Expression* call = Expression::make_call(func, args, false, bloc);
+
+ Expression_list* vals = new Expression_list();
+ vals->push_back(call);
+ Statement* s = Statement::make_return_statement(vals, bloc);
+ gogo->add_statement(s);
+}
+
// Write a hash function that simply calls the hash function for a
// named type. This is used when one named type is defined as
// another. This ensures that this case works when the other named
Named_object* seed_arg = gogo->lookup("seed", NULL);
go_assert(seed_arg != NULL);
- // The size of the type we are going to hash.
- Named_object* keysz_arg = gogo->lookup("key_size", NULL);
- go_assert(keysz_arg != NULL);
-
Named_object* hash_fn;
Named_object* equal_fn;
name->real_type()->type_functions(gogo, base_type, hash_fntype, equal_fntype,
// Call the hash function for the base type.
Expression* key_ref = Expression::make_var_reference(key_arg, bloc);
Expression* seed_ref = Expression::make_var_reference(seed_arg, bloc);
- Expression* keysz_ref = Expression::make_var_reference(keysz_arg, bloc);
Expression_list* args = new Expression_list();
args->push_back(key_ref);
args->push_back(seed_ref);
- args->push_back(keysz_ref);
Expression* func = Expression::make_func_reference(hash_fn, NULL, bloc);
Expression* call = Expression::make_call(func, args, false, bloc);
gogo->add_statement(key);
// Loop over the struct fields.
- bool first = true;
const Struct_field_list* fields = this->fields_;
for (Struct_field_list::const_iterator pf = fields->begin();
pf != fields->end();
if (Gogo::is_sink_name(pf->field_name()))
continue;
- if (first)
- first = false;
- else
- {
- // Multiply retval by 33.
- Expression* i33 = Expression::make_integer_ul(33, uintptr_type,
- bloc);
- ref = Expression::make_temporary_reference(retval, bloc);
- Statement* s = Statement::make_assignment_operation(OPERATOR_MULTEQ,
- ref, i33, bloc);
- gogo->add_statement(s);
- }
-
// Get a pointer to the value of this field.
Expression* offset = Expression::make_struct_field_offset(this, &*pf);
ref = Expression::make_temporary_reference(key, bloc);
bloc);
subkey = Expression::make_cast(key_arg_type, subkey, bloc);
- // Get the size of this field.
- Expression* size = Expression::make_type_info(pf->type(),
- Expression::TYPE_INFO_SIZE);
-
// Get the hash function to use for the type of this field.
Named_object* hash_fn;
Named_object* equal_fn;
Expression_list* args = new Expression_list();
args->push_back(subkey);
args->push_back(ref);
- args->push_back(size);
Expression* func = Expression::make_func_reference(hash_fn, NULL, bloc);
Expression* call = Expression::make_call(func, args, false, bloc);
gogo->start_block(bloc);
- // Multiply retval by 33.
- Expression* i33 = Expression::make_integer_ul(33, uintptr_type, bloc);
-
- ref = Expression::make_temporary_reference(retval, bloc);
- Statement* s = Statement::make_assignment_operation(OPERATOR_MULTEQ, ref,
- i33, bloc);
- gogo->add_statement(s);
-
// Get the hash function for the element type.
Named_object* hash_fn;
Named_object* equal_fn;
Expression_list* args = new Expression_list();
args->push_back(subkey);
args->push_back(ref);
- args->push_back(ele_size);
Expression* func = Expression::make_func_reference(hash_fn, NULL, bloc);
Expression* call = Expression::make_call(func, args, false, bloc);
Temporary_reference_expression* tref =
Expression::make_temporary_reference(retval, bloc);
tref->set_is_lvalue();
- s = Statement::make_assignment(tref, call, bloc);
+ Statement* s = Statement::make_assignment(tref, call, bloc);
gogo->add_statement(s);
// Increase the element pointer.
bool
is_backend_type_size_known(Gogo*);
+ // Return whether the type needs specially built type functions.
+ bool
+ needs_specific_type_functions(Gogo*);
+
// Get the hash and equality functions for a type.
void
type_functions(Gogo*, Named_type* name, Function_type* hash_fntype,
// Write the hash and equality type functions.
void
- write_specific_type_functions(Gogo*, Named_type*,
+ write_specific_type_functions(Gogo*, Named_type*, int64_t size,
const std::string& hash_name,
Function_type* hash_fntype,
const std::string& equal_name,
// Build the hash and equality type functions for a type which needs
// specific functions.
void
- specific_type_functions(Gogo*, Named_type*, Function_type* hash_fntype,
+ specific_type_functions(Gogo*, Named_type*, int64_t size,
+ Function_type* hash_fntype,
Function_type* equal_fntype, Named_object** hash_fn,
Named_object** equal_fn);
+ void
+ write_identity_hash(Gogo*, int64_t size);
+
+ void
+ write_identity_equal(Gogo*, int64_t size);
+
void
write_named_hash(Gogo*, Named_type*, Function_type* hash_fntype,
Function_type* equal_fntype);
runtime/go-setenv.c \
runtime/go-signal.c \
runtime/go-strslice.c \
- runtime/go-type-complex.c \
- runtime/go-type-float.c \
- runtime/go-type-identity.c \
- runtime/go-type-string.c \
runtime/go-typedesc-equal.c \
runtime/go-unsafe-new.c \
runtime/go-unsafe-newarray.c \
go-memcmp.lo go-memequal.lo go-memmove.lo go-nanotime.lo \
go-now.lo go-new.lo go-nosys.lo go-reflect-call.lo \
go-runtime-error.lo go-setenv.lo go-signal.lo go-strslice.lo \
- go-type-complex.lo go-type-float.lo go-type-identity.lo \
- go-type-string.lo go-typedesc-equal.lo go-unsafe-new.lo \
- go-unsafe-newarray.lo go-unsafe-pointer.lo go-unsetenv.lo \
- go-unwind.lo go-varargs.lo env_posix.lo heapdump.lo mcache.lo \
- mcentral.lo $(am__objects_1) mfixalloc.lo mgc0.lo mheap.lo \
- msize.lo panic.lo parfor.lo print.lo proc.lo runtime_c.lo \
- thread.lo $(am__objects_2) yield.lo $(am__objects_3) malloc.lo \
+ go-typedesc-equal.lo go-unsafe-new.lo go-unsafe-newarray.lo \
+ go-unsafe-pointer.lo go-unsetenv.lo go-unwind.lo go-varargs.lo \
+ env_posix.lo heapdump.lo mcache.lo mcentral.lo \
+ $(am__objects_1) mfixalloc.lo mgc0.lo mheap.lo msize.lo \
+ panic.lo parfor.lo print.lo proc.lo runtime_c.lo thread.lo \
+ $(am__objects_2) yield.lo $(am__objects_3) malloc.lo \
$(am__objects_4)
am_libgo_llgo_la_OBJECTS = $(am__objects_5)
libgo_llgo_la_OBJECTS = $(am_libgo_llgo_la_OBJECTS)
runtime/go-setenv.c \
runtime/go-signal.c \
runtime/go-strslice.c \
- runtime/go-type-complex.c \
- runtime/go-type-float.c \
- runtime/go-type-identity.c \
- runtime/go-type-string.c \
runtime/go-typedesc-equal.c \
runtime/go-unsafe-new.c \
runtime/go-unsafe-newarray.c \
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-setenv.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-signal.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-strslice.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-type-complex.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-type-float.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-type-identity.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-type-string.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-typedesc-equal.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/go-unsafe-new.Plo@am__quote@
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-
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-
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-
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-
go-typedesc-equal.lo: runtime/go-typedesc-equal.c
@am__fastdepCC_TRUE@ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT go-typedesc-equal.lo -MD -MP -MF $(DEPDIR)/go-typedesc-equal.Tpo -c -o go-typedesc-equal.lo `test -f 'runtime/go-typedesc-equal.c' || echo '$(srcdir)/'`runtime/go-typedesc-equal.c
@am__fastdepCC_TRUE@ $(am__mv) $(DEPDIR)/go-typedesc-equal.Tpo $(DEPDIR)/go-typedesc-equal.Plo
size uintptr
hash uint32 // hash of type; avoids computation in hash tables
- hashfn func(unsafe.Pointer, uintptr, uintptr) uintptr // hash function
- equalfn func(unsafe.Pointer, unsafe.Pointer, uintptr) bool // equality function
+ hashfn func(unsafe.Pointer, uintptr) uintptr // hash function
+ equalfn func(unsafe.Pointer, unsafe.Pointer) bool // equality function
gc unsafe.Pointer // garbage collection data
string *string // string form; unnecessary but undeniably useful
typ.gc = unsafe.Pointer(&gc[0])
}
- typ.hashfn = func(p unsafe.Pointer, seed, size uintptr) uintptr {
+ typ.hashfn = func(p unsafe.Pointer, seed uintptr) uintptr {
ret := seed
- for i, ft := range typ.fields {
- if i > 0 {
- ret *= 33
- }
+ for _, ft := range typ.fields {
o := unsafe.Pointer(uintptr(p) + ft.offset)
- ret = ft.typ.hashfn(o, ret, ft.typ.size)
+ ret = ft.typ.hashfn(o, ret)
}
return ret
}
- typ.equalfn = func(p, q unsafe.Pointer, size uintptr) bool {
+ typ.equalfn = func(p, q unsafe.Pointer) bool {
for _, ft := range typ.fields {
pi := unsafe.Pointer(uintptr(p) + ft.offset)
qi := unsafe.Pointer(uintptr(q) + ft.offset)
- if !ft.typ.equalfn(pi, qi, ft.typ.size) {
+ if !ft.typ.equalfn(pi, qi) {
return false
}
}
array.kind &^= kindDirectIface
- array.hashfn = func(p unsafe.Pointer, seed, size uintptr) uintptr {
+ array.hashfn = func(p unsafe.Pointer, seed uintptr) uintptr {
ret := seed
for i := 0; i < count; i++ {
- ret *= 33
- ret = typ.hashfn(p, ret, typ.size)
+ ret = typ.hashfn(p, ret)
p = unsafe.Pointer(uintptr(p) + typ.size)
}
return ret
}
- array.equalfn = func(p1, p2 unsafe.Pointer, size uintptr) bool {
+ array.equalfn = func(p1, p2 unsafe.Pointer) bool {
for i := 0; i < count; i++ {
- if !typ.equalfn(p1, p2, typ.size) {
+ if !typ.equalfn(p1, p2) {
return false
}
p1 = unsafe.Pointer(uintptr(p1) + typ.size)
// For gccgo, use go:linkname to rename compiler-called functions to
// themselves, so that the compiler will export them.
//
+//go:linkname memhash0 runtime.memhash0
+//go:linkname memhash8 runtime.memhash8
+//go:linkname memhash16 runtime.memhash16
+//go:linkname memhash32 runtime.memhash32
+//go:linkname memhash64 runtime.memhash64
+//go:linkname memhash128 runtime.memhash128
+//go:linkname strhash runtime.strhash
+//go:linkname f32hash runtime.f32hash
+//go:linkname f64hash runtime.f64hash
+//go:linkname c64hash runtime.c64hash
+//go:linkname c128hash runtime.c128hash
//go:linkname interhash runtime.interhash
//go:linkname nilinterhash runtime.nilinterhash
+//go:linkname memequal0 runtime.memequal0
+//go:linkname memequal8 runtime.memequal8
+//go:linkname memequal16 runtime.memequal16
+//go:linkname memequal32 runtime.memequal32
+//go:linkname memequal64 runtime.memequal64
+//go:linkname memequal128 runtime.memequal128
+//go:linkname strequal runtime.strequal
+//go:linkname f32equal runtime.f32equal
+//go:linkname f64equal runtime.f64equal
+//go:linkname c64equal runtime.c64equal
+//go:linkname c128equal runtime.c128equal
//go:linkname interequal runtime.interequal
//go:linkname nilinterequal runtime.nilinterequal
//go:linkname efaceeq runtime.efaceeq
c1 = uintptr((8-sys.PtrSize)/4*3267000013 + (sys.PtrSize-4)/4*23344194077549503)
)
+func memhash0(p unsafe.Pointer, h uintptr) uintptr {
+ return h
+}
+func memhash8(p unsafe.Pointer, h uintptr) uintptr {
+ return memhash(p, h, 1)
+}
+func memhash16(p unsafe.Pointer, h uintptr) uintptr {
+ return memhash(p, h, 2)
+}
+func memhash32(p unsafe.Pointer, h uintptr) uintptr {
+ return memhash(p, h, 4)
+}
+func memhash64(p unsafe.Pointer, h uintptr) uintptr {
+ return memhash(p, h, 8)
+}
+func memhash128(p unsafe.Pointer, h uintptr) uintptr {
+ return memhash(p, h, 16)
+}
+
var useAeshash bool
// in C code
return aeshashbody(unsafe.Pointer(ps.str), h, uintptr(ps.len), aeskeysched[:])
}
+func strhash(a unsafe.Pointer, h uintptr) uintptr {
+ x := (*stringStruct)(a)
+ return memhash(x.str, h, uintptr(x.len))
+}
+
+// NOTE: Because NaN != NaN, a map can contain any
+// number of (mostly useless) entries keyed with NaNs.
+// To avoid long hash chains, we assign a random number
+// as the hash value for a NaN.
+
+func f32hash(p unsafe.Pointer, h uintptr) uintptr {
+ f := *(*float32)(p)
+ switch {
+ case f == 0:
+ return c1 * (c0 ^ h) // +0, -0
+ case f != f:
+ return c1 * (c0 ^ h ^ uintptr(fastrand1())) // any kind of NaN
+ default:
+ return memhash(p, h, 4)
+ }
+}
+
+func f64hash(p unsafe.Pointer, h uintptr) uintptr {
+ f := *(*float64)(p)
+ switch {
+ case f == 0:
+ return c1 * (c0 ^ h) // +0, -0
+ case f != f:
+ return c1 * (c0 ^ h ^ uintptr(fastrand1())) // any kind of NaN
+ default:
+ return memhash(p, h, 8)
+ }
+}
+
+func c64hash(p unsafe.Pointer, h uintptr) uintptr {
+ x := (*[2]float32)(p)
+ return f32hash(unsafe.Pointer(&x[1]), f32hash(unsafe.Pointer(&x[0]), h))
+}
+
+func c128hash(p unsafe.Pointer, h uintptr) uintptr {
+ x := (*[2]float64)(p)
+ return f64hash(unsafe.Pointer(&x[1]), f64hash(unsafe.Pointer(&x[0]), h))
+}
+
func interhash(p unsafe.Pointer, h uintptr, size uintptr) uintptr {
a := (*iface)(p)
tab := a.tab
panic(errorString("hash of unhashable type " + *t.string))
}
if isDirectIface(t) {
- return c1 * fn(unsafe.Pointer(&a.data), h^c0, t.size)
+ return c1 * fn(unsafe.Pointer(&a.data), h^c0)
} else {
- return c1 * fn(a.data, h^c0, t.size)
+ return c1 * fn(a.data, h^c0)
}
}
-func nilinterhash(p unsafe.Pointer, h uintptr, size uintptr) uintptr {
+func nilinterhash(p unsafe.Pointer, h uintptr) uintptr {
a := (*eface)(p)
t := a._type
if t == nil {
panic(errorString("hash of unhashable type " + *t.string))
}
if isDirectIface(t) {
- return c1 * fn(unsafe.Pointer(&a.data), h^c0, t.size)
+ return c1 * fn(unsafe.Pointer(&a.data), h^c0)
} else {
- return c1 * fn(a.data, h^c0, t.size)
+ return c1 * fn(a.data, h^c0)
}
}
+func memequal0(p, q unsafe.Pointer) bool {
+ return true
+}
+func memequal8(p, q unsafe.Pointer) bool {
+ return *(*int8)(p) == *(*int8)(q)
+}
+func memequal16(p, q unsafe.Pointer) bool {
+ return *(*int16)(p) == *(*int16)(q)
+}
+func memequal32(p, q unsafe.Pointer) bool {
+ return *(*int32)(p) == *(*int32)(q)
+}
+func memequal64(p, q unsafe.Pointer) bool {
+ return *(*int64)(p) == *(*int64)(q)
+}
+func memequal128(p, q unsafe.Pointer) bool {
+ return *(*[2]int64)(p) == *(*[2]int64)(q)
+}
+func f32equal(p, q unsafe.Pointer) bool {
+ return *(*float32)(p) == *(*float32)(q)
+}
+func f64equal(p, q unsafe.Pointer) bool {
+ return *(*float64)(p) == *(*float64)(q)
+}
+func c64equal(p, q unsafe.Pointer) bool {
+ return *(*complex64)(p) == *(*complex64)(q)
+}
+func c128equal(p, q unsafe.Pointer) bool {
+ return *(*complex128)(p) == *(*complex128)(q)
+}
+func strequal(p, q unsafe.Pointer) bool {
+ return *(*string)(p) == *(*string)(q)
+}
func interequal(p, q unsafe.Pointer, size uintptr) bool {
return ifaceeq(*(*iface)(p), *(*iface)(q))
}
-
func nilinterequal(p, q unsafe.Pointer, size uintptr) bool {
return efaceeq(*(*eface)(p), *(*eface)(q))
}
-
func efaceeq(x, y eface) bool {
t := x._type
if !eqtype(t, y._type) {
if isDirectIface(t) {
return x.data == y.data
}
- return eq(x.data, y.data, t.size)
+ return eq(x.data, y.data)
}
-
func ifaceeq(x, y iface) bool {
xtab := x.tab
if xtab == nil && y.tab == nil {
if isDirectIface(t) {
return x.data == y.data
}
- return eq(x.data, y.data, t.size)
+ return eq(x.data, y.data)
}
func ifacevaleq(x iface, t *_type, p unsafe.Pointer) bool {
if isDirectIface(t) {
return x.data == p
}
- return eq(x.data, p, t.size)
+ return eq(x.data, p)
}
func ifaceefaceeq(x iface, y eface) bool {
if isDirectIface(xt) {
return x.data == y.data
}
- return eq(x.data, y.data, xt.size)
+ return eq(x.data, y.data)
}
func efacevaleq(x eface, t *_type, p unsafe.Pointer) bool {
if isDirectIface(t) {
return x.data == p
}
- return eq(x.data, p, t.size)
+ return eq(x.data, p)
}
func eqstring(x, y string) bool {
return 0
}
+// For the unsafe.Pointer type descriptor in libgo/runtime/go-unsafe-pointer.c.
+
+func pointerhash(p unsafe.Pointer, h uintptr) uintptr {
+ return memhash(p, h, unsafe.Sizeof(unsafe.Pointer))
+}
+
+func pointerequal(p, q unsafe.Pointer) bool {
+ return *(*unsafe.Pointer)(p) == *(*unsafe.Pointer)(q)
+}
+
// Force the creation of function descriptors for equality and hash
// functions. These will be referenced directly by the compiler.
var _ = memhash
+var _ = memhash0
+var _ = memhash8
+var _ = memhash16
+var _ = memhash32
+var _ = memhash64
+var _ = memhash128
+var _ = strhash
+var _ = f32hash
+var _ = f64hash
+var _ = c64hash
+var _ = c128hash
var _ = interhash
-var _ = interequal
var _ = nilinterhash
+var _ = memequal0
+var _ = memequal8
+var _ = memequal16
+var _ = memequal32
+var _ = memequal64
+var _ = memequal128
+var _ = f32equal
+var _ = f64equal
+var _ = c64equal
+var _ = c128equal
+var _ = strequal
+var _ = interequal
var _ = nilinterequal
+var _ = pointerhash
+var _ = pointerequal
const hashRandomBytes = sys.PtrSize / 4 * 64
}
hashfn := t.key.hashfn
equalfn := t.key.equalfn
- hash := hashfn(key, uintptr(h.hash0), uintptr(t.keysize))
+ hash := hashfn(key, uintptr(h.hash0))
m := uintptr(1)<<h.B - 1
b := (*bmap)(add(h.buckets, (hash&m)*uintptr(t.bucketsize)))
if c := h.oldbuckets; c != nil {
if t.indirectkey {
k = *((*unsafe.Pointer)(k))
}
- if equalfn(key, k, uintptr(t.keysize)) {
+ if equalfn(key, k) {
v := add(unsafe.Pointer(b), dataOffset+bucketCnt*uintptr(t.keysize)+i*uintptr(t.valuesize))
if t.indirectvalue {
v = *((*unsafe.Pointer)(v))
}
hashfn := t.key.hashfn
equalfn := t.key.equalfn
- hash := hashfn(key, uintptr(h.hash0), uintptr(t.keysize))
+ hash := hashfn(key, uintptr(h.hash0))
m := uintptr(1)<<h.B - 1
b := (*bmap)(unsafe.Pointer(uintptr(h.buckets) + (hash&m)*uintptr(t.bucketsize)))
if c := h.oldbuckets; c != nil {
if t.indirectkey {
k = *((*unsafe.Pointer)(k))
}
- if equalfn(key, k, uintptr(t.keysize)) {
+ if equalfn(key, k) {
v := add(unsafe.Pointer(b), dataOffset+bucketCnt*uintptr(t.keysize)+i*uintptr(t.valuesize))
if t.indirectvalue {
v = *((*unsafe.Pointer)(v))
}
hashfn := t.key.hashfn
equalfn := t.key.equalfn
- hash := hashfn(key, uintptr(h.hash0), uintptr(t.keysize))
+ hash := hashfn(key, uintptr(h.hash0))
m := uintptr(1)<<h.B - 1
b := (*bmap)(unsafe.Pointer(uintptr(h.buckets) + (hash&m)*uintptr(t.bucketsize)))
if c := h.oldbuckets; c != nil {
if t.indirectkey {
k = *((*unsafe.Pointer)(k))
}
- if equalfn(key, k, uintptr(t.keysize)) {
+ if equalfn(key, k) {
v := add(unsafe.Pointer(b), dataOffset+bucketCnt*uintptr(t.keysize)+i*uintptr(t.valuesize))
if t.indirectvalue {
v = *((*unsafe.Pointer)(v))
hashfn := t.key.hashfn
equalfn := t.key.equalfn
- hash := hashfn(key, uintptr(h.hash0), uintptr(t.keysize))
+ hash := hashfn(key, uintptr(h.hash0))
if h.buckets == nil {
h.buckets = newarray(t.bucket, 1)
if t.indirectkey {
k2 = *((*unsafe.Pointer)(k2))
}
- if !equalfn(key, k2, uintptr(t.keysize)) {
+ if !equalfn(key, k2) {
continue
}
// already have a mapping for key. Update it.
hashfn := t.key.hashfn
equalfn := t.key.equalfn
- hash := hashfn(key, uintptr(h.hash0), uintptr(t.keysize))
+ hash := hashfn(key, uintptr(h.hash0))
bucket := hash & (uintptr(1)<<h.B - 1)
if h.oldbuckets != nil {
growWork(t, h, bucket)
if t.indirectkey {
k2 = *((*unsafe.Pointer)(k2))
}
- if !equalfn(key, k2, uintptr(t.keysize)) {
+ if !equalfn(key, k2) {
continue
}
memclr(k, uintptr(t.keysize))
if t.indirectkey {
k2 = *((*unsafe.Pointer)(k2))
}
- if t.reflexivekey || equalfn(k2, k2, uintptr(t.keysize)) {
+ if t.reflexivekey || equalfn(k2, k2) {
// If the item in the oldbucket is not destined for
// the current new bucket in the iteration, skip it.
- hash := hashfn(k2, uintptr(h.hash0), uintptr(t.keysize))
+ hash := hashfn(k2, uintptr(h.hash0))
if hash&(uintptr(1)<<it.B-1) != checkBucket {
continue
}
if t.indirectkey {
k2 = *((*unsafe.Pointer)(k2))
}
- if t.reflexivekey || equalfn(k2, k2, uintptr(t.keysize)) {
+ if t.reflexivekey || equalfn(k2, k2) {
// Check the current hash table for the data.
// This code handles the case where the key
// has been deleted, updated, or deleted and reinserted.
}
// Compute hash to make our evacuation decision (whether we need
// to send this key/value to bucket x or bucket y).
- hash := hashfn(k2, uintptr(h.hash0), uintptr(t.keysize))
+ hash := hashfn(k2, uintptr(h.hash0))
if h.flags&iterator != 0 {
- if !t.reflexivekey && !equalfn(k2, k2, uintptr(t.keysize)) {
+ if !t.reflexivekey && !equalfn(k2, k2) {
// If key != key (NaNs), then the hash could be (and probably
// will be) entirely different from the old hash. Moreover,
// it isn't reproducible. Reproducibility is required in the
// One-bucket table. No need to hash.
b = (*bmap)(h.buckets)
} else {
- hash := t.key.hashfn(noescape(unsafe.Pointer(&key)), uintptr(h.hash0), uintptr(t.keysize))
+ hash := t.key.hashfn(noescape(unsafe.Pointer(&key)), uintptr(h.hash0))
m := uintptr(1)<<h.B - 1
b = (*bmap)(add(h.buckets, (hash&m)*uintptr(t.bucketsize)))
if c := h.oldbuckets; c != nil {
// One-bucket table. No need to hash.
b = (*bmap)(h.buckets)
} else {
- hash := t.key.hashfn(noescape(unsafe.Pointer(&key)), uintptr(h.hash0), uintptr(t.keysize))
+ hash := t.key.hashfn(noescape(unsafe.Pointer(&key)), uintptr(h.hash0))
m := uintptr(1)<<h.B - 1
b = (*bmap)(add(h.buckets, (hash&m)*uintptr(t.bucketsize)))
if c := h.oldbuckets; c != nil {
// One-bucket table. No need to hash.
b = (*bmap)(h.buckets)
} else {
- hash := t.key.hashfn(noescape(unsafe.Pointer(&key)), uintptr(h.hash0), uintptr(t.keysize))
+ hash := t.key.hashfn(noescape(unsafe.Pointer(&key)), uintptr(h.hash0))
m := uintptr(1)<<h.B - 1
b = (*bmap)(add(h.buckets, (hash&m)*uintptr(t.bucketsize)))
if c := h.oldbuckets; c != nil {
// One-bucket table. No need to hash.
b = (*bmap)(h.buckets)
} else {
- hash := t.key.hashfn(noescape(unsafe.Pointer(&key)), uintptr(h.hash0), uintptr(t.keysize))
+ hash := t.key.hashfn(noescape(unsafe.Pointer(&key)), uintptr(h.hash0))
m := uintptr(1)<<h.B - 1
b = (*bmap)(add(h.buckets, (hash&m)*uintptr(t.bucketsize)))
if c := h.oldbuckets; c != nil {
return unsafe.Pointer(&zeroVal[0])
}
dohash:
- hash := t.key.hashfn(noescape(unsafe.Pointer(&ky)), uintptr(h.hash0), uintptr(t.keysize))
+ hash := t.key.hashfn(noescape(unsafe.Pointer(&ky)), uintptr(h.hash0))
m := uintptr(1)<<h.B - 1
b := (*bmap)(add(h.buckets, (hash&m)*uintptr(t.bucketsize)))
if c := h.oldbuckets; c != nil {
return unsafe.Pointer(&zeroVal[0]), false
}
dohash:
- hash := t.key.hashfn(noescape(unsafe.Pointer(&ky)), uintptr(h.hash0), uintptr(t.keysize))
+ hash := t.key.hashfn(noescape(unsafe.Pointer(&ky)), uintptr(h.hash0))
m := uintptr(1)<<h.B - 1
b := (*bmap)(add(h.buckets, (hash&m)*uintptr(t.bucketsize)))
if c := h.oldbuckets; c != nil {
size uintptr
hash uint32
- hashfn func(unsafe.Pointer, uintptr, uintptr) uintptr
- equalfn func(unsafe.Pointer, unsafe.Pointer, uintptr) bool
+ hashfn func(unsafe.Pointer, uintptr) uintptr
+ equalfn func(unsafe.Pointer, unsafe.Pointer) bool
gc unsafe.Pointer
string *string
+++ /dev/null
-/* go-type-complex.c -- hash and equality complex functions.
-
- Copyright 2012 The Go Authors. All rights reserved.
- Use of this source code is governed by a BSD-style
- license that can be found in the LICENSE file. */
-
-#include <complex.h>
-#include <math.h>
-#include <stdint.h>
-#include <string.h>
-#include "runtime.h"
-#include "go-type.h"
-
-/* Hash function for float types. */
-
-uintptr_t
-__go_type_hash_complex (const void *vkey, uintptr_t seed, uintptr_t key_size)
-{
- if (key_size == 8)
- {
- const complex float *cfp;
- complex float cf;
- float cfr;
- float cfi;
- uint64_t fi;
-
- cfp = (const complex float *) vkey;
- cf = *cfp;
-
- cfr = crealf (cf);
- cfi = cimagf (cf);
-
- if (isinf (cfr) || isinf (cfi))
- return seed;
-
- /* NaN != NaN, so the hash code of a NaN is irrelevant. Make it
- random so that not all NaNs wind up in the same place. */
- if (isnan (cfr) || isnan (cfi))
- return runtime_fastrand1 ();
-
- /* Avoid negative zero. */
- if (cfr == 0 && cfi == 0)
- return seed;
- else if (cfr == 0)
- cf = cfi * I;
- else if (cfi == 0)
- cf = cfr;
-
- memcpy (&fi, &cf, 8);
- return (uintptr_t) cfi ^ seed;
- }
- else if (key_size == 16)
- {
- const complex double *cdp;
- complex double cd;
- double cdr;
- double cdi;
- uint64_t di[2];
-
- cdp = (const complex double *) vkey;
- cd = *cdp;
-
- cdr = creal (cd);
- cdi = cimag (cd);
-
- if (isinf (cdr) || isinf (cdi))
- return seed;
-
- if (isnan (cdr) || isnan (cdi))
- return runtime_fastrand1 ();
-
- /* Avoid negative zero. */
- if (cdr == 0 && cdi == 0)
- return seed;
- else if (cdr == 0)
- cd = cdi * I;
- else if (cdi == 0)
- cd = cdr;
-
- memcpy (&di, &cd, 16);
- return di[0] ^ di[1] ^ seed;
- }
- else
- runtime_throw ("__go_type_hash_complex: invalid complex size");
-}
-
-const FuncVal __go_type_hash_complex_descriptor =
- { (void *) __go_type_hash_complex };
-
-/* Equality function for complex types. */
-
-_Bool
-__go_type_equal_complex (const void *vk1, const void *vk2, uintptr_t key_size)
-{
- if (key_size == 8)
- {
- const complex float *cfp1;
- const complex float *cfp2;
-
- cfp1 = (const complex float *) vk1;
- cfp2 = (const complex float *) vk2;
-
- return *cfp1 == *cfp2;
- }
- else if (key_size == 16)
- {
- const complex double *cdp1;
- const complex double *cdp2;
-
- cdp1 = (const complex double *) vk1;
- cdp2 = (const complex double *) vk2;
-
- return *cdp1 == *cdp2;
- }
- else
- runtime_throw ("__go_type_equal_complex: invalid complex size");
-}
-
-const FuncVal __go_type_equal_complex_descriptor =
- { (void *) __go_type_equal_complex };
+++ /dev/null
-/* go-type-float.c -- hash and equality float functions.
-
- Copyright 2012 The Go Authors. All rights reserved.
- Use of this source code is governed by a BSD-style
- license that can be found in the LICENSE file. */
-
-#include <math.h>
-#include <stdint.h>
-#include "runtime.h"
-#include "go-type.h"
-
-/* Hash function for float types. */
-
-uintptr_t
-__go_type_hash_float (const void *vkey, uintptr_t seed, uintptr_t key_size)
-{
- if (key_size == 4)
- {
- const float *fp;
- float f;
- uint32_t si;
-
- fp = (const float *) vkey;
- f = *fp;
-
- if (isinf (f) || f == 0)
- return seed;
-
- /* NaN != NaN, so the hash code of a NaN is irrelevant. Make it
- random so that not all NaNs wind up in the same place. */
- if (isnan (f))
- return runtime_fastrand1 ();
-
- memcpy (&si, vkey, 4);
- return (uintptr_t) si ^ seed;
- }
- else if (key_size == 8)
- {
- const double *dp;
- double d;
- uint64_t di;
-
- dp = (const double *) vkey;
- d = *dp;
-
- if (isinf (d) || d == 0)
- return seed;
-
- if (isnan (d))
- return runtime_fastrand1 ();
-
- memcpy (&di, vkey, 8);
- return (uintptr_t) di ^ seed;
- }
- else
- runtime_throw ("__go_type_hash_float: invalid float size");
-}
-
-const FuncVal __go_type_hash_float_descriptor =
- { (void *) __go_type_hash_float };
-
-/* Equality function for float types. */
-
-_Bool
-__go_type_equal_float (const void *vk1, const void *vk2, uintptr_t key_size)
-{
- if (key_size == 4)
- {
- const float *fp1;
- const float *fp2;
-
- fp1 = (const float *) vk1;
- fp2 = (const float *) vk2;
-
- return *fp1 == *fp2;
- }
- else if (key_size == 8)
- {
- const double *dp1;
- const double *dp2;
-
- dp1 = (const double *) vk1;
- dp2 = (const double *) vk2;
-
- return *dp1 == *dp2;
- }
- else
- runtime_throw ("__go_type_equal_float: invalid float size");
-}
-
-const FuncVal __go_type_equal_float_descriptor =
- { (void *) __go_type_equal_float };
+++ /dev/null
-/* go-type-identity.c -- hash and equality identity functions.
-
- Copyright 2009 The Go Authors. All rights reserved.
- Use of this source code is governed by a BSD-style
- license that can be found in the LICENSE file. */
-
-#include <stddef.h>
-
-#include "runtime.h"
-#include "go-type.h"
-
-/* The hash functions for types that can compare as identity is
- written in Go. */
-
-extern uintptr runtime_memhash(void *, uintptr, uintptr)
- __asm__ (GOSYM_PREFIX "runtime.memhash");
-
-const FuncVal __go_type_hash_identity_descriptor =
- { (void *) runtime_memhash };
-
-/* An identity equality function for a type. This is used for types
- where we can check for equality by checking that the values have
- the same bits. */
-
-_Bool
-__go_type_equal_identity (const void *k1, const void *k2, uintptr_t key_size)
-{
- return __builtin_memcmp (k1, k2, key_size) == 0;
-}
-
-const FuncVal __go_type_equal_identity_descriptor =
- { (void *) __go_type_equal_identity };
+++ /dev/null
-/* go-type-string.c -- hash and equality string functions.
-
- Copyright 2009 The Go Authors. All rights reserved.
- Use of this source code is governed by a BSD-style
- license that can be found in the LICENSE file. */
-
-#include "runtime.h"
-#include "go-type.h"
-#include "go-string.h"
-
-/* A string hash function for a map. */
-
-uintptr_t
-__go_type_hash_string (const void *vkey, uintptr_t seed,
- uintptr_t key_size __attribute__ ((unused)))
-{
- uintptr_t ret;
- const String *key;
- intgo len;
- intgo i;
- const byte *p;
-
- ret = seed;
- key = (const String *) vkey;
- len = key->len;
- for (i = 0, p = key->str; i < len; i++, p++)
- ret = ret * 33 + *p;
- return ret;
-}
-
-const FuncVal __go_type_hash_string_descriptor =
- { (void *) __go_type_hash_string };
-
-/* A string equality function for a map. */
-
-_Bool
-__go_type_equal_string (const void *vk1, const void *vk2,
- uintptr_t key_size __attribute__ ((unused)))
-{
- const String *k1;
- const String *k2;
-
- k1 = (const String *) vk1;
- k2 = (const String *) vk2;
- return __go_ptr_strings_equal (k1, k2);
-}
-
-const FuncVal __go_type_equal_string_descriptor =
- { (void *) __go_type_equal_string };
__go_type_descriptors_equal(const struct __go_type_descriptor*,
const struct __go_type_descriptor*);
-extern const FuncVal __go_type_hash_identity_descriptor;
-extern _Bool __go_type_equal_identity (const void *, const void *, uintptr_t);
-extern const FuncVal __go_type_equal_identity_descriptor;
-extern uintptr_t __go_type_hash_string (const void *, uintptr_t, uintptr_t);
-extern const FuncVal __go_type_hash_string_descriptor;
-extern _Bool __go_type_equal_string (const void *, const void *, uintptr_t);
-extern const FuncVal __go_type_equal_string_descriptor;
-extern uintptr_t __go_type_hash_float (const void *, uintptr_t, uintptr_t);
-extern const FuncVal __go_type_hash_float_descriptor;
-extern _Bool __go_type_equal_float (const void *, const void *, uintptr_t);
-extern const FuncVal __go_type_equal_float_descriptor;
-extern uintptr_t __go_type_hash_complex (const void *, uintptr_t, uintptr_t);
-extern const FuncVal __go_type_hash_complex_descriptor;
-extern _Bool __go_type_equal_complex (const void *, const void *, uintptr_t);
-extern const FuncVal __go_type_equal_complex_descriptor;
-extern uintptr_t __go_type_hash_interface (const void *, uintptr_t, uintptr_t);
-extern const FuncVal __go_type_hash_interface_descriptor;
-extern _Bool __go_type_equal_interface (const void *, const void *, uintptr_t);
-extern const FuncVal __go_type_equal_interface_descriptor;
-
#endif /* !defined(LIBGO_GO_TYPE_H) */
const uintptr unsafe_Pointer_gc[] = {sizeof(void*), GC_APTR, 0, GC_END};
+extern const FuncVal runtime_pointerhash_descriptor
+ __asm__ (GOSYM_PREFIX "runtime.pointerhash$descriptor");
+extern const FuncVal runtime_pointerequal_descriptor
+ __asm__ (GOSYM_PREFIX "runtime.pointerequal$descriptor");
+
const struct __go_type_descriptor unsafe_Pointer =
{
/* __code */
/* __hash */
78501163U,
/* __hashfn */
- &__go_type_hash_identity_descriptor,
+ &runtime_pointerhash_descriptor,
/* __equalfn */
- &__go_type_equal_identity_descriptor,
+ &runtime_pointerequal_descriptor,
/* __gc */
unsafe_Pointer_gc,
/* __reflection */
/* __hash */
1256018616U,
/* __hashfn */
- &__go_type_hash_identity_descriptor,
+ &runtime_pointerhash_descriptor,
/* __equalfn */
- &__go_type_equal_identity_descriptor,
+ &runtime_pointerequal_descriptor,
/* __gc */
unsafe_Pointer_gc,
/* __reflection */
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