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authorgingerBill <bill@gingerbill.org>2021-04-22 11:33:46 +0100
committergingerBill <bill@gingerbill.org>2021-04-22 11:33:46 +0100
commitb68b090f136d43c3501c4c9772bd4dd68399eb37 (patch)
treeb91b453f34e7079aa6482144a87015db35073ffa /src
parent542098dc6fbc871d44a5061bb871f93968d48e3e (diff)
Add intrinsics: overflow_add, overflow_sub, overflow_mul; Change byte swap behaviour in -llvm-api to be the same as the intrinsic
Diffstat (limited to 'src')
-rw-r--r--src/check_expr.cpp115
-rw-r--r--src/check_type.cpp9
-rw-r--r--src/checker.cpp26
-rw-r--r--src/checker_builtin_procs.hpp8
-rw-r--r--src/llvm_backend.cpp123
-rw-r--r--src/llvm_backend.hpp2
-rw-r--r--src/types.cpp2
7 files changed, 200 insertions, 85 deletions
diff --git a/src/check_expr.cpp b/src/check_expr.cpp
index ae4f1ec30..a915aa92f 100644
--- a/src/check_expr.cpp
+++ b/src/check_expr.cpp
@@ -5760,14 +5760,14 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
case BuiltinProc_trap:
case BuiltinProc_debug_trap:
if (!build_context.use_llvm_api) {
- error(ce->args[0], "%.*s is not supported on this backend", LIT(builtin_procs[id].name));
+ error(ce->args[0], "'%.*s' is not supported on this backend", LIT(builtin_procs[id].name));
}
operand->mode = Addressing_NoValue;
break;
case BuiltinProc_read_cycle_counter:
if (!build_context.use_llvm_api) {
- error(ce->args[0], "%.*s is not supported on this backend", LIT(builtin_procs[id].name));
+ error(ce->args[0], "'%.*s' is not supported on this backend", LIT(builtin_procs[id].name));
}
operand->mode = Addressing_Value;
operand->type = t_i64;
@@ -5776,9 +5776,8 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
case BuiltinProc_count_ones:
case BuiltinProc_trailing_zeros:
case BuiltinProc_reverse_bits:
- case BuiltinProc_byte_swap:
if (!build_context.use_llvm_api) {
- error(ce->args[0], "%.*s is not supported on this backend", LIT(builtin_procs[id].name));
+ error(ce->args[0], "'%.*s' is not supported on this backend", LIT(builtin_procs[id].name));
// continue anyway
}
{
@@ -5788,24 +5787,102 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
return false;
}
- if (id == BuiltinProc_byte_swap && (!is_type_integer_like(x.type) && !is_type_float(x.type))) {
+ if (!is_type_integer_like(x.type)) {
+ gbString xts = type_to_string(x.type);
+ error(x.expr, "Values passed to '%.*s' must be an integer-like type (integer, boolean, enum, bit_set), got %s", LIT(builtin_procs[id].name), xts);
+ gb_string_free(xts);
+ } else if (x.type == t_llvm_bool) {
gbString xts = type_to_string(x.type);
- error(x.expr, "Values passed to %.*s must be an integer-like type (integer, boolean, enum, bit_set) or float, got %s", LIT(builtin_procs[id].name), xts);
+ error(x.expr, "Invalid type passed to '%.*s', got %s", LIT(builtin_procs[id].name), xts);
gb_string_free(xts);
- } else if (id != BuiltinProc_byte_swap && !is_type_integer_like(x.type)) {
+ }
+
+ operand->mode = Addressing_Value;
+ operand->type = default_type(x.type);
+ }
+ break;
+
+ case BuiltinProc_byte_swap:
+ if (!build_context.use_llvm_api) {
+ error(ce->args[0], "'%.*s' is not supported on this backend", LIT(builtin_procs[id].name));
+ // continue anyway
+ }
+ {
+ Operand x = {};
+ check_expr(c, &x, ce->args[0]);
+ if (x.mode == Addressing_Invalid) {
+ return false;
+ }
+
+ if (!is_type_integer_like(x.type) && !is_type_float(x.type)) {
gbString xts = type_to_string(x.type);
- error(x.expr, "Values passed to %.*s must be an integer-like type (integer, boolean, enum, bit_set), got %s", LIT(builtin_procs[id].name), xts);
+ error(x.expr, "Values passed to '%.*s' must be an integer-like type (integer, boolean, enum, bit_set) or float, got %s", LIT(builtin_procs[id].name), xts);
gb_string_free(xts);
} else if (x.type == t_llvm_bool) {
gbString xts = type_to_string(x.type);
- error(x.expr, "Invalid type passed to %.*s, got %s", LIT(builtin_procs[id].name), xts);
+ error(x.expr, "Invalid type passed to '%.*s', got %s", LIT(builtin_procs[id].name), xts);
gb_string_free(xts);
}
+ i64 sz = type_size_of(x.type);
+ if (sz < 2) {
+ gbString xts = type_to_string(x.type);
+ error(x.expr, "Type passed to '%.*s' must be at least 2 bytes, got %s with size of %lld", LIT(builtin_procs[id].name), xts, sz);
+ gb_string_free(xts);
+ }
+
operand->mode = Addressing_Value;
operand->type = default_type(x.type);
}
break;
+ case BuiltinProc_overflow_add:
+ case BuiltinProc_overflow_sub:
+ case BuiltinProc_overflow_mul:
+ if (!build_context.use_llvm_api) {
+ error(ce->args[0], "'%.*s' is not supported on this backend", LIT(builtin_procs[id].name));
+ // continue anyway
+ }
+ {
+ Operand x = {};
+ Operand y = {};
+ check_expr(c, &x, ce->args[0]);
+ check_expr(c, &y, ce->args[1]);
+ if (x.mode == Addressing_Invalid) {
+ return false;
+ }
+ if (y.mode == Addressing_Invalid) {
+ return false;
+ }
+ convert_to_typed(c, &y, x.type);
+ convert_to_typed(c, &x, y.type);
+ if (is_type_untyped(x.type)) {
+ gbString xts = type_to_string(x.type);
+ error(x.expr, "Expected a typed integer for '%.*s', got %s", LIT(builtin_procs[id].name), xts);
+ gb_string_free(xts);
+ return false;
+ }
+ if (!is_type_integer(x.type)) {
+ gbString xts = type_to_string(x.type);
+ error(x.expr, "Expected an integer for '%.*s', got %s", LIT(builtin_procs[id].name), xts);
+ gb_string_free(xts);
+ return false;
+ }
+ Type *ct = core_type(x.type);
+ if (is_type_different_to_arch_endianness(ct)) {
+ GB_ASSERT(ct->kind == Type_Basic);
+ if (ct->Basic.flags & (BasicFlag_EndianLittle|BasicFlag_EndianBig)) {
+ gbString xts = type_to_string(x.type);
+ error(x.expr, "Expected an integer which does not specify the explicit endianness for '%.*s', got %s", LIT(builtin_procs[id].name), xts);
+ gb_string_free(xts);
+ return false;
+ }
+ }
+
+ operand->mode = Addressing_Value;
+ operand->type = make_optional_ok_type(default_type(x.type), false); // Just reusing this procedure, it's not optional
+ }
+ break;
+
case BuiltinProc_atomic_fence:
case BuiltinProc_atomic_fence_acq:
case BuiltinProc_atomic_fence_rel:
@@ -5945,7 +6022,7 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
case BuiltinProc_fixed_point_div_sat:
{
if (!build_context.use_llvm_api) {
- error(ce->args[0], "%.*s is not supported on this backend", LIT(builtin_procs[id].name));
+ error(ce->args[0], "'%.*s' is not supported on this backend", LIT(builtin_procs[id].name));
// continue anyway
}
@@ -5971,7 +6048,7 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
if (!are_types_identical(x.type, y.type)) {
gbString xts = type_to_string(x.type);
gbString yts = type_to_string(y.type);
- error(x.expr, "Mismatched types for %.*s, %s vs %s", LIT(builtin_procs[id].name), xts, yts);
+ error(x.expr, "Mismatched types for '%.*s', %s vs %s", LIT(builtin_procs[id].name), xts, yts);
gb_string_free(yts);
gb_string_free(xts);
return false;
@@ -5979,7 +6056,7 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
if (!is_type_integer(x.type) || is_type_untyped(x.type)) {
gbString xts = type_to_string(x.type);
- error(x.expr, "Expected an integer type for %.*s, got %s", LIT(builtin_procs[id].name), xts);
+ error(x.expr, "Expected an integer type for '%.*s', got %s", LIT(builtin_procs[id].name), xts);
gb_string_free(xts);
return false;
}
@@ -5989,17 +6066,17 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
return false;
}
if (z.mode != Addressing_Constant || !is_type_integer(z.type)) {
- error(z.expr, "Expected a constant integer for the scale in %.*s", LIT(builtin_procs[id].name));
+ error(z.expr, "Expected a constant integer for the scale in '%.*s'", LIT(builtin_procs[id].name));
return false;
}
i64 n = exact_value_to_i64(z.value);
if (n <= 0) {
- error(z.expr, "Scale parameter in %.*s must be positive, got %lld", LIT(builtin_procs[id].name), n);
+ error(z.expr, "Scale parameter in '%.*s' must be positive, got %lld", LIT(builtin_procs[id].name), n);
return false;
}
i64 sz = 8*type_size_of(x.type);
if (n > sz) {
- error(z.expr, "Scale parameter in %.*s is larger than the base integer bit width, got %lld, expected a maximum of %lld", LIT(builtin_procs[id].name), n, sz);
+ error(z.expr, "Scale parameter in '%.*s' is larger than the base integer bit width, got %lld, expected a maximum of %lld", LIT(builtin_procs[id].name), n, sz);
return false;
}
@@ -6011,7 +6088,7 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
case BuiltinProc_expect:
if (!build_context.use_llvm_api) {
- error(ce->args[0], "%.*s is not supported on this backend", LIT(builtin_procs[id].name));
+ error(ce->args[0], "'%.*s' is not supported on this backend", LIT(builtin_procs[id].name));
// continue anyway
}
{
@@ -6030,7 +6107,7 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
if (!are_types_identical(x.type, y.type)) {
gbString xts = type_to_string(x.type);
gbString yts = type_to_string(y.type);
- error(x.expr, "Mismatched types for %.*s, %s vs %s", LIT(builtin_procs[id].name), xts, yts);
+ error(x.expr, "Mismatched types for '%.*s', %s vs %s", LIT(builtin_procs[id].name), xts, yts);
gb_string_free(yts);
gb_string_free(xts);
*operand = x; // minimize error propagation
@@ -6039,14 +6116,14 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
if (!is_type_integer_like(x.type)) {
gbString xts = type_to_string(x.type);
- error(x.expr, "Values passed to %.*s must be an integer-like type (integer, boolean, enum, bit_set), got %s", LIT(builtin_procs[id].name), xts);
+ error(x.expr, "Values passed to '%.*s' must be an integer-like type (integer, boolean, enum, bit_set), got %s", LIT(builtin_procs[id].name), xts);
gb_string_free(xts);
*operand = x;
return true;
}
if (y.mode != Addressing_Constant) {
- error(y.expr, "Second argument to %.*s must be constant as it is the expected value", LIT(builtin_procs[id].name));
+ error(y.expr, "Second argument to '%.*s' must be constant as it is the expected value", LIT(builtin_procs[id].name));
}
if (x.mode == Addressing_Constant) {
diff --git a/src/check_type.cpp b/src/check_type.cpp
index 612a11593..e3aac161c 100644
--- a/src/check_type.cpp
+++ b/src/check_type.cpp
@@ -2619,12 +2619,11 @@ i64 check_array_count(CheckerContext *ctx, Operand *o, Ast *e) {
}
Type *make_optional_ok_type(Type *value, bool typed) {
- // LEAK TODO(bill): probably don't reallocate everything here and reuse the same one for the same type if possible
- gbAllocator a = heap_allocator();
+ gbAllocator a = permanent_allocator();
Type *t = alloc_type_tuple();
- array_init(&t->Tuple.variables, a, 0, 2);
- array_add (&t->Tuple.variables, alloc_entity_field(nullptr, blank_token, value, false, 0));
- array_add (&t->Tuple.variables, alloc_entity_field(nullptr, blank_token, typed ? t_bool : t_untyped_bool, false, 1));
+ array_init(&t->Tuple.variables, a, 2);
+ t->Tuple.variables[0] = alloc_entity_field(nullptr, blank_token, value, false, 0);
+ t->Tuple.variables[1] = alloc_entity_field(nullptr, blank_token, typed ? t_bool : t_untyped_bool, false, 1);
return t;
}
diff --git a/src/checker.cpp b/src/checker.cpp
index eab704d9c..f386d6da7 100644
--- a/src/checker.cpp
+++ b/src/checker.cpp
@@ -1773,20 +1773,28 @@ void generate_minimum_dependency_set(Checker *c, Entity *start) {
str_lit("memory_equal"),
str_lit("memory_compare"),
str_lit("memory_compare_zero"),
-
- str_lit("bswap_16"),
- str_lit("bswap_32"),
- str_lit("bswap_64"),
- str_lit("bswap_128"),
-
- str_lit("bswap_f16"),
- str_lit("bswap_f32"),
- str_lit("bswap_f64"),
};
for (isize i = 0; i < gb_count_of(required_runtime_entities); i++) {
force_add_dependency_entity(c, c->info.runtime_package->scope, required_runtime_entities[i]);
}
+ if (!build_context.use_llvm_api) {
+ String other_required_runtime_entities[] = {
+ str_lit("bswap_16"),
+ str_lit("bswap_32"),
+ str_lit("bswap_64"),
+ str_lit("bswap_128"),
+
+ str_lit("bswap_f16"),
+ str_lit("bswap_f32"),
+ str_lit("bswap_f64"),
+ };
+
+ for (isize i = 0; i < gb_count_of(other_required_runtime_entities); i++) {
+ force_add_dependency_entity(c, c->info.runtime_package->scope, other_required_runtime_entities[i]);
+ }
+ }
+
if (build_context.no_crt) {
String required_no_crt_entities[] = {
// NOTE(bill): Only if these exist
diff --git a/src/checker_builtin_procs.hpp b/src/checker_builtin_procs.hpp
index 7f8fd5323..b9794da8a 100644
--- a/src/checker_builtin_procs.hpp
+++ b/src/checker_builtin_procs.hpp
@@ -50,6 +50,10 @@ enum BuiltinProcId {
BuiltinProc_reverse_bits,
BuiltinProc_byte_swap,
+ BuiltinProc_overflow_add,
+ BuiltinProc_overflow_sub,
+ BuiltinProc_overflow_mul,
+
BuiltinProc_volatile_store,
BuiltinProc_volatile_load,
@@ -264,6 +268,10 @@ gb_global BuiltinProc builtin_procs[BuiltinProc_COUNT] = {
{STR_LIT("reverse_bits"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics},
{STR_LIT("byte_swap"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics},
+ {STR_LIT("overflow_add"), 2, false, Expr_Expr, BuiltinProcPkg_intrinsics},
+ {STR_LIT("overflow_sub"), 2, false, Expr_Expr, BuiltinProcPkg_intrinsics},
+ {STR_LIT("overflow_mul"), 2, false, Expr_Expr, BuiltinProcPkg_intrinsics},
+
{STR_LIT("volatile_store"), 2, false, Expr_Stmt, BuiltinProcPkg_intrinsics},
{STR_LIT("volatile_load"), 1, false, Expr_Expr, BuiltinProcPkg_intrinsics},
diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp
index 2e77d66f2..a74d5bd3a 100644
--- a/src/llvm_backend.cpp
+++ b/src/llvm_backend.cpp
@@ -9127,34 +9127,57 @@ lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValue const &tv,
{
lbValue x = lb_build_expr(p, ce->args[0]);
x = lb_emit_conv(p, x, tv.type);
- if (is_type_float(tv.type)) {
- i64 sz = type_size_of(tv.type);
- Type *integer_type = nullptr;
- switch (sz) {
- case 2: integer_type = t_u16; break;
- case 4: integer_type = t_u32; break;
- case 8: integer_type = t_u64; break;
+ return lb_emit_byte_swap(p, x, tv.type);
+ }
+
+ case BuiltinProc_overflow_add:
+ case BuiltinProc_overflow_sub:
+ case BuiltinProc_overflow_mul:
+ {
+ Type *tuple = tv.type;
+ GB_ASSERT(is_type_tuple(tuple));
+ Type *type = tuple->Tuple.variables[0]->type;
+
+ lbValue x = lb_build_expr(p, ce->args[0]);
+ lbValue y = lb_build_expr(p, ce->args[1]);
+ x = lb_emit_conv(p, x, type);
+ y = lb_emit_conv(p, y, type);
+
+ char const *name = nullptr;
+ if (is_type_unsigned(type)) {
+ switch (id) {
+ case BuiltinProc_overflow_add: name = "llvm.uadd.with.overflow"; break;
+ case BuiltinProc_overflow_sub: name = "llvm.usub.with.overflow"; break;
+ case BuiltinProc_overflow_mul: name = "llvm.umul.with.overflow"; break;
+ }
+ } else {
+ switch (id) {
+ case BuiltinProc_overflow_add: name = "llvm.sadd.with.overflow"; break;
+ case BuiltinProc_overflow_sub: name = "llvm.ssub.with.overflow"; break;
+ case BuiltinProc_overflow_mul: name = "llvm.smul.with.overflow"; break;
}
- GB_ASSERT(integer_type != nullptr);
- x = lb_emit_transmute(p, x, integer_type);
}
-
- char const *name = "llvm.bswap";
- LLVMTypeRef types[1] = {lb_type(p->module, x.type)};
+ LLVMTypeRef types[1] = {lb_type(p->module, type)};
unsigned id = LLVMLookupIntrinsicID(name, gb_strlen(name));
GB_ASSERT_MSG(id != 0, "Unable to find %s.%s", name, LLVMPrintTypeToString(types[0]));
LLVMValueRef ip = LLVMGetIntrinsicDeclaration(p->module->mod, id, types, gb_count_of(types));
- LLVMValueRef args[1] = {};
+ LLVMValueRef args[2] = {};
args[0] = x.value;
+ args[1] = y.value;
+
+ Type *res_type = nullptr;
+ {
+ gbAllocator a = permanent_allocator();
+ res_type = alloc_type_tuple();
+ array_init(&res_type->Tuple.variables, a, 2);
+ res_type->Tuple.variables[0] = alloc_entity_field(nullptr, blank_token, type, false, 0);
+ res_type->Tuple.variables[1] = alloc_entity_field(nullptr, blank_token, t_llvm_bool, false, 1);
+ }
lbValue res = {};
res.value = LLVMBuildCall(p->builder, ip, args, gb_count_of(args), "");
- res.type = x.type;
-
- if (is_type_float(tv.type)) {
- res = lb_emit_transmute(p, res, tv.type);
- }
+ res.type = res_type;
return res;
}
@@ -9896,43 +9919,43 @@ LLVMValueRef lb_lookup_runtime_procedure(lbModule *m, String const &name) {
return found->value;
}
-lbValue lb_emit_byte_swap(lbProcedure *p, lbValue value, Type *platform_type) {
- Type *vt = core_type(value.type);
- GB_ASSERT(type_size_of(vt) == type_size_of(platform_type));
+lbValue lb_emit_byte_swap(lbProcedure *p, lbValue value, Type *end_type) {
+ GB_ASSERT(type_size_of(value.type) == type_size_of(end_type));
- // TODO(bill): lb_emit_byte_swap
- lbValue res = {};
- res.type = platform_type;
- res.value = value.value;
-
- int sz = cast(int)type_size_of(vt);
- if (sz > 1) {
- if (is_type_float(platform_type)) {
- String name = {};
- switch (sz) {
- case 2: name = str_lit("bswap_f16"); break;
- case 4: name = str_lit("bswap_f32"); break;
- case 8: name = str_lit("bswap_f64"); break;
- default: GB_PANIC("unhandled byteswap size"); break;
- }
- LLVMValueRef fn = lb_lookup_runtime_procedure(p->module, name);
- res.value = LLVMBuildCall(p->builder, fn, &value.value, 1, "");
- } else {
- GB_ASSERT(is_type_integer(platform_type));
- String name = {};
- switch (sz) {
- case 2: name = str_lit("bswap_16"); break;
- case 4: name = str_lit("bswap_32"); break;
- case 8: name = str_lit("bswap_64"); break;
- case 16: name = str_lit("bswap_128"); break;
- default: GB_PANIC("unhandled byteswap size"); break;
- }
- LLVMValueRef fn = lb_lookup_runtime_procedure(p->module, name);
+ if (type_size_of(value.type) < 2) {
+ return value;
+ }
- res.value = LLVMBuildCall(p->builder, fn, &value.value, 1, "");
+ Type *original_type = value.type;
+ if (is_type_float(original_type)) {
+ i64 sz = type_size_of(original_type);
+ Type *integer_type = nullptr;
+ switch (sz) {
+ case 2: integer_type = t_u16; break;
+ case 4: integer_type = t_u32; break;
+ case 8: integer_type = t_u64; break;
}
+ GB_ASSERT(integer_type != nullptr);
+ value = lb_emit_transmute(p, value, integer_type);
}
+ char const *name = "llvm.bswap";
+ LLVMTypeRef types[1] = {lb_type(p->module, value.type)};
+ unsigned id = LLVMLookupIntrinsicID(name, gb_strlen(name));
+ GB_ASSERT_MSG(id != 0, "Unable to find %s.%s", name, LLVMPrintTypeToString(types[0]));
+ LLVMValueRef ip = LLVMGetIntrinsicDeclaration(p->module->mod, id, types, gb_count_of(types));
+
+ LLVMValueRef args[1] = {};
+ args[0] = value.value;
+
+ lbValue res = {};
+ res.value = LLVMBuildCall(p->builder, ip, args, gb_count_of(args), "");
+ res.type = value.type;
+
+ if (is_type_float(original_type)) {
+ res = lb_emit_transmute(p, res, original_type);
+ }
+ res.type = end_type;
return res;
}
diff --git a/src/llvm_backend.hpp b/src/llvm_backend.hpp
index 8117271c1..47c58fde3 100644
--- a/src/llvm_backend.hpp
+++ b/src/llvm_backend.hpp
@@ -310,7 +310,7 @@ lbValue lb_emit_deep_field_gep(lbProcedure *p, lbValue e, Selection sel);
lbValue lb_emit_deep_field_ev(lbProcedure *p, lbValue e, Selection sel);
lbValue lb_emit_arith(lbProcedure *p, TokenKind op, lbValue lhs, lbValue rhs, Type *type);
-lbValue lb_emit_byte_swap(lbProcedure *p, lbValue value, Type *platform_type);
+lbValue lb_emit_byte_swap(lbProcedure *p, lbValue value, Type *end_type);
void lb_emit_defer_stmts(lbProcedure *p, lbDeferExitKind kind, lbBlock *block);
lbValue lb_emit_transmute(lbProcedure *p, lbValue value, Type *t);
lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left, lbValue right);
diff --git a/src/types.cpp b/src/types.cpp
index f706032a5..a5c5c2eb2 100644
--- a/src/types.cpp
+++ b/src/types.cpp
@@ -1479,7 +1479,7 @@ Type *integer_endian_type_to_platform_type(Type *t) {
if (t->kind == Type_BitSet) {
t = bit_set_to_int(t);
}
- GB_ASSERT(t->kind == Type_Basic);
+ GB_ASSERT_MSG(t->kind == Type_Basic, "%s", type_to_string(t));
switch (t->Basic.kind) {
// Endian Specific Types