Begin Type_Info

Missing stuff in records, procedures, and tuples

examples/demo.odin

@@ -1,874 +1,36 @@
-// Demo 002
 #load "basic.odin"
-#load "game.odin"
+#load "math.odin"
 
-#thread_local tls_int: int
+
+print_type_info_kind :: proc(info: ^Type_Info) {
+	using Type_Info
+	match type i : info {
+	case Named:     print_string("Named\n")
+	case Integer:   print_string("Integer\n")
+	case Float:     print_string("Float\n")
+	case String:    print_string("String\n")
+	case Boolean:   print_string("Boolean\n")
+	case Pointer:   print_string("Pointer\n")
+	case Procedure: print_string("Procedure\n")
+	case Array:     print_string("Array\n")
+	case Slice:     print_string("Slice\n")
+	case Vector:    print_string("Vector\n")
+	case Struct:    print_string("Struct\n")
+	case Union:     print_string("Union\n")
+	case Raw_Union: print_string("RawUnion\n")
+	case Enum:      print_string("Enum\n")
+	default:        print_string("void\n")
+	}
+}
 
 main :: proc() {
-	// Forenotes
+	i: int
+	s: struct {
+		x, y, z: f32
+	}
+	p := ^s
 
-	// Semicolons are now optional
-	// Rule for when a semicolon is expected after a statement
-	// - If the next token is not on the same line
-	// - if the next token is a closing brace }
-	// - Otherwise, a semicolon is needed
-	//
-	// Expections:
-	// for, if, match
-	// if x := thing(); x < 123 {}
-	// for i := 0; i < 123; i++ {}
-
-	// Q: Should I use the new rule or go back to the old one without optional semicolons?
-
-
-	// #thread_local - see runtime.odin and above at `tls_int`
-	// #foreign_system_library - see win32.odin
-
-	struct_compound_literals()
-	enumerations()
-	variadic_procedures()
-	new_builtins()
-	match_statement()
-	namespacing()
-	subtyping()
-	tagged_unions()
+	print_type_info_kind(type_info(i))
+	print_type_info_kind(type_info(s))
+	print_type_info_kind(type_info(p))
 }
-
-struct_compound_literals :: proc() {
-	Thing :: type struct {
-		id: int
-		x: f32
-		name: string
-	}
-	{
-		t1: Thing
-		t1.id = 1
-
-		t3 := Thing{}
-		t4 := Thing{1, 2, "Fred"}
-		// t5 := Thing{1, 2}
-
-		t6 := Thing{
-			name = "Tom",
-			x = 23,
-		}
-	}
-}
-
-enumerations :: proc() {
-	{
-		Fruit :: type enum {
-			APPLE,  // 0
-			BANANA, // 1
-			PEAR,   // 2
-		}
-
-		f := Fruit.APPLE
-		// g: int = Fruit.BANANA
-		g: int = Fruit.BANANA as int
-	}
-	{
-		Fruit1 :: type enum int {
-			APPLE,
-			BANANA,
-			PEAR,
-		}
-
-		Fruit2 :: type enum u8 {
-			APPLE,
-			BANANA,
-			PEAR,
-		}
-
-		Fruit3 :: type enum u8 {
-			APPLE = 1,
-			BANANA, // 2
-			PEAR  = 5,
-			TOMATO, // 6
-		}
-	}
-}
-
-variadic_procedures :: proc() {
-	print_ints :: proc(args: ..int) {
-		for i := 0; i < len(args); i++ {
-			if i > 0 {
-				print_string(", ")
-			}
-			print_int(args[i])
-		}
-	}
-
-	print_ints(); nl()
-	print_ints(1); nl()
-	print_ints(1, 2, 3); nl()
-
-	print_prefix_f32s :: proc(prefix: string, args: ..f32) {
-		print_string(prefix)
-		print_string(": ")
-		for i := 0; i < len(args); i++ {
-			if i > 0 {
-				print_string(", ")
-			}
-			print_f32(args[i])
-		}
-	}
-
-	print_prefix_f32s("a"); nl()
-	print_prefix_f32s("b", 1); nl()
-	print_prefix_f32s("c", 1, 2, 3); nl()
-
-	// Internally, the variadic procedures get allocated to an array on the stack,
-	// and this array is passed a slice
-
-	// This is first step for a `print` procedure but I do not have an `any` type
-	// yet as this requires a few other things first - i.e. introspection
-}
-
-new_builtins :: proc() {
-	{
-		a := new(int)
-		b := new_slice(int, 12)
-		c := new_slice(int, 12, 16)
-
-		defer delete(a)
-		defer delete(b)
-		defer delete(c)
-
-		// NOTE(bill): These use the current context's allocator not the default allocator
-		// see runtime.odin
-
-		// Q: Should this be `free` rather than `delete` and should I overload it for slices too?
-	}
-
-	{
-		a: int = 123
-		b: type_of_val(a) = 321
-
-		// NOTE(bill): This matches the current naming scheme
-		// size_of
-		// align_of
-		// offset_of
-		//
-		// size_of_val
-		// align_of_val
-		// offset_of_val
-		// type_of_val
-	}
-
-	{
-		// Compile time assert
-		COND :: true
-		assert(COND)
-		// assert(!COND)
-
-		// Runtime assert
-		x := true
-		assert(x)
-		// assert(!x)
-	}
-
-	{
-		x: ^u32 = null;
-		y := ptr_offset(x, 100)
-		z := ptr_sub(y, x)
-		w := slice_ptr(x, 12)
-		t := slice_ptr(x, 12, 16)
-
-		// NOTE(bill): These are here because I've removed:
-		// pointer arithmetic
-		// pointer indexing
-		// pointer slicing
-
-		// Reason
-
-		a: [16]int
-		a[1] = 1;
-		b := ^a
-		// Auto pointer deref
-		// consistent with record members
-		assert(b[1] == 1)
-
-		// Q: Should I add them back in at the cost of inconsitency?
-	}
-
-	{
-		a, b := -1, 2
-		print_int(min(a, b)); nl()
-		print_int(max(a, b)); nl()
-		print_int(abs(a)); nl()
-
-		// These work at compile time too
-		A :: -1
-		B :: 2
-		C :: min(A, B)
-		D :: max(A, B)
-		E :: abs(A)
-
-		print_int(C); nl()
-		print_int(D); nl()
-		print_int(E); nl()
-	}
-}
-
-
-match_statement :: proc() {
-	// NOTE(bill): `match` statements are similar to `switch` statements
-	// in other languages but there are few differences
-
-	{
-		match x := 2; x {
-		case 1: // cases must be constant expression
-			print_string("1!\n")
-			// break by default
-
-		case 2:
-			s := "2!\n"; // Each case has its own scope
-			print_string(s)
-			break // explicit break
-
-		case 3, 4: // multiple cases
-			print_string("3 or 4!\n")
-
-		case 5:
-			print_string("5!\n")
-			fallthrough // explicit fallthrough
-
-		default:
-			print_string("default!\n")
-		}
-
-
-
-		match x := 1.5; x {
-		case 1.5:
-			print_string("1.5!\n")
-			// break by default
-		case MATH_TAU:
-			print_string("τ!\n")
-		default:
-			print_string("default!\n")
-		}
-
-
-
-		match x := "Hello"; x {
-		case "Hello":
-			print_string("greeting\n")
-			// break by default
-		case "Goodbye":
-			print_string("farewell\n")
-		default:
-			print_string("???\n")
-		}
-
-
-
-
-
-
-		a := 53
-		match {
-		case a == 1:
-			print_string("one\n")
-		case a == 2:
-			print_string("a couple\n")
-		case a < 7, a == 7:
-			print_string("a few\n")
-		case a < 12: // intentional bug
-			print_string("several\n")
-		case a >= 12 && a < 100:
-			print_string("dozens\n")
-		case a >= 100 && a < 1000:
-			print_string("hundreds\n")
-		default:
-			print_string("a fuck ton\n")
-		}
-
-		// Identical to this
-
-		b := 53
-		if b == 1 {
-			print_string("one\n")
-		} else if b == 2 {
-			print_string("a couple\n")
-		} else if b < 7 || b == 7 {
-			print_string("a few\n")
-		} else if b < 12 { // intentional bug
-			print_string("several\n")
-		} else if b >= 12 && b < 100 {
-			print_string("dozens\n")
-		} else if b >= 100 && b < 1000 {
-			print_string("hundreds\n")
-		} else {
-			print_string("a fuck ton\n")
-		}
-
-		// However, match statements allow for `break` and `fallthrough` unlike
-		// an if statement
-	}
-}
-
-Vector3 :: type struct {
-	x, y, z: f32
-}
-
-print_floats :: proc(args: ..f32) {
-	for i := 0; i < len(args); i++ {
-		if i > 0 {
-			print_string(", ")
-		}
-		print_f32(args[i])
-	}
-	print_nl()
-}
-
-namespacing :: proc() {
-	{
-		Thing :: type struct {
-			x: f32
-			name: string
-		}
-
-		a: Thing
-		a.x = 3
-		{
-			Thing :: type struct {
-				y: int
-				test: bool
-			}
-
-			b: Thing // Uses this scope's Thing
-			b.test = true
-		}
-	}
-
-	{
-		Entity :: type struct {
-			Guid :: type int
-			Nested :: type struct {
-				MyInt :: type int
-				i: int
-			}
-
-			CONSTANT :: 123
-
-
-			guid:   Guid
-			name:   string
-			pos:    Vector3
-			vel:    Vector3
-			nested: Nested
-		}
-
-		guid: Entity.Guid = Entity.CONSTANT
-		i: Entity.Nested.MyInt
-
-
-
-		{
-			using Entity
-			guid: Guid = CONSTANT
-			using Nested
-			i: MyInt
-		}
-
-
-		{
-			using Entity.Nested
-			guid: Entity.Guid = Entity.CONSTANT
-			i: MyInt
-		}
-
-
-		{
-			e: Entity
-			using e
-			guid = 78456
-			name = "Thing"
-
-			print_int(e.guid as int); nl()
-			print_string(e.name); nl()
-		}
-
-		{
-			using e: Entity
-			guid = 78456
-			name = "Thing"
-
-			print_int(e.guid as int); nl()
-			print_string(e.name); nl()
-		}
-	}
-
-	{
-		Entity :: type struct {
-			Guid :: type int
-			Nested :: type struct {
-				MyInt :: type int
-				i: int
-			}
-
-			CONSTANT :: 123
-
-
-			guid:      Guid
-			name:      string
-			using pos: Vector3
-			vel:       Vector3
-			using nested: ^Nested
-		}
-
-		e := Entity{nested = new(Entity.Nested)}
-		e.x = 123
-		e.i = Entity.CONSTANT
-	}
-
-
-
-	{
-		Entity :: type struct {
-			position: Vector3
-		}
-
-		print_pos_1 :: proc(entity: ^Entity) {
-			print_string("print_pos_1: ")
-			print_floats(entity.position.x, entity.position.y, entity.position.z)
-		}
-
-		print_pos_2 :: proc(entity: ^Entity) {
-			using entity
-			print_string("print_pos_2: ")
-			print_floats(position.x, position.y, position.z)
-		}
-
-		print_pos_3 :: proc(using entity: ^Entity) {
-			print_string("print_pos_3: ")
-			print_floats(position.x, position.y, position.z)
-		}
-
-		print_pos_4 :: proc(using entity: ^Entity) {
-			using position
-			print_string("print_pos_4: ")
-			print_floats(x, y, z)
-		}
-
-		e := Entity{position = Vector3{1, 2, 3}}
-		print_pos_1(^e)
-		print_pos_2(^e)
-		print_pos_3(^e)
-		print_pos_4(^e)
-
-		// This is similar to C++'s `this` pointer that is implicit and only available in methods
-	}
-}
-
-subtyping :: proc() {
-	{
-		// C way for subtyping/subclassing
-
-		Entity :: type struct {
-			position: Vector3
-		}
-
-		Frog :: type struct {
-			entity: Entity
-			jump_height: f32
-		}
-
-		f: Frog
-		f.entity.position = Vector3{1, 2, 3}
-
-		using f.entity
-		position = Vector3{1, 2, 3}
-
-	}
-
-	{
-		// C++ way for subtyping/subclassing
-
-		Entity :: type struct {
-			position: Vector3
-		}
-
-		Frog :: type struct {
-			using entity: Entity
-			jump_height: f32
-		}
-
-		f: Frog
-		f.position = Vector3{1, 2, 3}
-
-
-		print_pos :: proc(using entity: Entity) {
-			print_string("print_pos: ")
-			print_floats(position.x, position.y, position.z)
-		}
-
-		print_pos(f.entity)
-		print_pos(f)
-
-		// Subtype Polymorphism
-	}
-
-	{
-		// More than C++ way for subtyping/subclassing
-
-		Entity :: type struct {
-			position: Vector3
-		}
-
-		Frog :: type struct {
-			jump_height: f32
-			using entity: ^Entity // Doesn't have to be first member!
-		}
-
-		f: Frog
-		f.entity = new(Entity)
-		f.position = Vector3{1, 2, 3}
-
-
-		print_pos :: proc(using entity: ^Entity) {
-			print_string("print_pos: ")
-			print_floats(position.x, position.y, position.z)
-		}
-
-		print_pos(f.entity)
-		print_pos(^f)
-		print_pos(f)
-	}
-
-	{
-		// More efficient subtyping
-
-		Entity :: type struct {
-			position: Vector3
-		}
-
-		Frog :: type struct {
-			jump_height: f32
-			using entity: ^Entity
-		}
-
-		MAX_ENTITES :: 64
-		entities: [MAX_ENTITES]Entity
-		entity_count := 0
-
-		next_entity :: proc(entities: []Entity, entity_count: ^int) -> ^Entity {
-			e := ^entities[entity_count^]
-			entity_count^++
-			return e
-		}
-
-		f: Frog
-		f.entity = next_entity(entities[:], ^entity_count)
-		f.position = Vector3{3, 4, 6}
-
-		using f.position
-		print_floats(x, y, z)
-	}
-
-	{
-		// Down casting
-
-		Entity :: type struct {
-			position: Vector3
-		}
-
-		Frog :: type struct {
-			jump_height: f32
-			using entity: Entity
-		}
-
-		f: Frog
-		f.jump_height = 564
-		e := ^f.entity
-
-		frog := e down_cast ^Frog
-		print_string("down_cast: ")
-		print_f32(frog.jump_height); nl()
-
-		// NOTE(bill): `down_cast` is unsafe and there are not check are compile time or run time
-	}
-
-	{
-		// Multiple "inheritance"
-
-		Entity :: type struct {
-			position: Vector3
-		}
-		Climber :: type struct {
-			speed: f32
-		}
-
-		Frog :: type struct {
-			using entity:  Entity
-			using climber: Climber
-		}
-	}
-}
-
-tagged_unions :: proc() {
-	{
-		EntityKind :: type enum {
-			INVALID,
-			FROG,
-			GIRAFFE,
-			HELICOPTER,
-		}
-
-		Entity :: type struct {
-			kind: EntityKind
-			using data: raw_union {
-				frog: struct {
-					jump_height: f32
-					colour: u32
-				}
-				giraffe: struct {
-					neck_length: f32
-					spot_count: int
-				}
-				helicopter: struct {
-					blade_count: int
-					weight: f32
-					pilot_name: string
-				}
-			}
-		}
-
-		e: Entity
-		e.kind = EntityKind.FROG
-		e.frog.jump_height = 12
-
-		f: type_of_val(e.frog);
-
-		// But this is very unsafe and extremely cumbersome to write
-		// In C++, I use macros to alleviate this but it's not a solution
-	}
-
-	{
-		Entity :: type union {
-			Frog: struct {
-				jump_height: f32
-				colour: u32
-			}
-			Giraffe: struct {
-				neck_length: f32
-				spot_count: int
-			}
-			Helicopter: struct {
-				blade_count: int
-				weight: f32
-				pilot_name: string
-			}
-		}
-
-		using Entity
-		f1: Frog = Frog{12, 0xff9900}
-		f2: Entity = Frog{12, 0xff9900} // Implicit cast
-		f3 := Frog{12, 0xff9900} as Entity // Explicit cast
-
-		// f3.Frog.jump_height = 12 // There are "members" of a union
-
-
-
-		e, f, g, h: Entity
-		f = Frog{12, 0xff9900}
-		g = Giraffe{2.1, 23}
-		h = Helicopter{4, 1000, "Frank"}
-
-
-
-
-		// Requires a pointer to the union
-		// `x` will be a pointer to type of the case
-		// Q: Allow for a non pointer version with takes a copy instead?
-		match type ^f -> x {
-		case Frog:
-			print_string("Frog!\n")
-			print_f32(x.jump_height); nl()
-			x.jump_height = 3
-			print_f32(x.jump_height); nl()
-		case Giraffe:
-			print_string("Giraffe!\n")
-		case Helicopter:
-			print_string("ROFLCOPTER!\n")
-		default:
-			print_string("invalid entity\n")
-		}
-
-		fp := ^f as ^Frog // Unsafe
-		print_f32(fp.jump_height); nl()
-
-
-		// Internals of a tagged union
-		/*
-			struct {
-				data: [size_of_biggest_tag]u8
-				tag_index: int
-			}
-		*/
-		// This is to allow for pointer casting if needed
-
-
-		// Advantage over subtyping version
-		MAX_ENTITES :: 64
-		entities: [MAX_ENTITES]Entity
-
-		entities[0] = Frog{}
-		entities[1] = Helicopter{}
-		// etc.
-	}
-
-
-	{
-		// Transliteration of code from this actual compiler
-		// Some stuff is missing
-		Type       :: type struct {}
-		Scope      :: type struct {}
-		Token      :: type struct {}
-		AstNode    :: type struct {}
-		ExactValue :: type struct {}
-
-		EntityKind :: type enum {
-			Invalid,
-			Constant,
-			Variable,
-			UsingVariable,
-			TypeName,
-			Procedure,
-			Builtin,
-			Count,
-		}
-
-		Entity :: type struct {
-			Guid :: type i64
-
-			kind: EntityKind
-			guid: Guid
-
-			scope: ^Scope
-			token: Token
-			type_: ^Type
-
-			using data: raw_union {
-				Constant: struct {
-					value: ExactValue
-				}
-				Variable: struct {
-					visited:   bool // Cycle detection
-					used:      bool // Variable is used
-					is_field:  bool // Is struct field
-					anonymous: bool // Variable is an anonymous
-				}
-				UsingVariable: struct {
-				}
-				TypeName: struct {
-				}
-				Procedure: struct {
-					used: bool
-				}
-				Builtin: struct {
-					id: int
-				}
-			}
-		}
-
-		// Plus all the constructing procedures that go along with them!!!!
-		// It's a nightmare
-	}
-
-	{
-		Type       :: type struct {}
-		Scope      :: type struct {}
-		Token      :: type struct {}
-		AstNode    :: type struct {}
-		ExactValue :: type struct {}
-
-
-		EntityBase :: type struct {
-			Guid :: type i64
-			guid: Guid
-
-			scope: ^Scope
-			token: Token
-			type_: ^Type
-		}
-
-		Entity :: type union {
-			Constant: struct {
-				using base: EntityBase
-				value: ExactValue
-			}
-			Variable: struct {
-				using base: EntityBase
-				visited:   bool // Cycle detection
-				used:      bool // Variable is used
-				is_field:  bool // Is struct field
-				anonymous: bool // Variable is an anonymous
-			}
-			UsingVariable: struct {
-				using base: EntityBase
-			}
-			TypeName: struct {
-				using base: EntityBase
-			}
-			Procedure: struct {
-				using base: EntityBase
-				used: bool
-			}
-			Builtin: struct {
-				using base: EntityBase
-				id: int
-			}
-		}
-
-		using Entity
-
-		e: Entity
-
-		e = Variable{
-			base = EntityBase{},
-			used = true,
-			anonymous = false,
-		}
-
-
-
-		// Q: Allow a "base" type to be added to a union?
-	}
-
-
-	{
-		// `Raw` unions still have uses, especially for mathematic types
-
-		Vector2 :: type raw_union {
-			using xy_: struct { x, y: f32 }
-			e: [2]f32
-			v: {2}f32
-		}
-
-		Vector3 :: type raw_union {
-			using xyz_: struct { x, y, z: f32 }
-			xy: Vector2
-			e: [3]f32
-			v: {3}f32
-		}
-
-		v2: Vector2
-		v2.x = 1
-		v2.e[0] = 1
-		v2.v[0] = 1
-
-		v3: Vector3
-		v3.x = 1
-		v3.e[0] = 1
-		v3.v[0] = 1
-		v3.xy.x = 1
-
-		// Q: If I applied using to a vector element in a raw_union,
-		// should that type now act as if it was a vector?
-	}
-}
-
-nl :: proc() { print_nl() }

examples/runtime.odin

@@ -1,10 +1,68 @@
 #load "win32.odin"
 
+// IMPORTANT NOTE(bill): Do not change the order of any of this data
+// The compiler relies upon this _exact_ order
+Type_Info :: union {
+	Member :: struct {
+		name:   string
+		type_:  ^Type_Info
+		offset: int
+	}
+	Record :: struct {
+		fields: []Member
+	}
+
+
+	Named: struct {
+		name: string
+		base: ^Type_Info
+	}
+	Integer: struct {
+		bits: int
+		signed: bool
+	}
+	Float: struct {
+		bits: int
+	}
+	String:  struct {}
+	Boolean: struct {}
+	Pointer: struct {
+		elem: ^Type_Info
+	}
+	Procedure: struct{}
+	Array: struct {
+		elem: ^Type_Info
+		count: int
+	}
+	Slice: struct {
+		elem: ^Type_Info
+	}
+	Vector: struct {
+		elem: ^Type_Info
+		count: int
+	}
+	Struct:    Record
+	Union:     Record
+	Raw_Union: Record
+	Enum: struct {
+		base: ^Type_Info
+	}
+}
+
+Any :: struct {
+	type_info: ^Type_Info
+	// pointer to the data stored
+	data: rawptr
+}
+
+
+
+
 assume :: proc(cond: bool) #foreign "llvm.assume"
 
-__debug_trap           :: proc()           #foreign "llvm.debugtrap"
-__trap                 :: proc()           #foreign "llvm.trap"
-read_cycle_counter     :: proc() -> u64    #foreign "llvm.readcyclecounter"
+__debug_trap           :: proc()        #foreign "llvm.debugtrap"
+__trap                 :: proc()        #foreign "llvm.trap"
+read_cycle_counter     :: proc() -> u64 #foreign "llvm.readcyclecounter"
 
 bit_reverse16 :: proc(b: u16) -> u16 #foreign "llvm.bitreverse.i16"
 bit_reverse32 :: proc(b: u32) -> u32 #foreign "llvm.bitreverse.i32"
@@ -22,218 +80,29 @@ heap_alloc   :: proc(len: int)   -> rawptr #foreign "malloc"
 heap_dealloc :: proc(ptr: rawptr)          #foreign "free"
 
 memory_zero :: proc(data: rawptr, len: int) {
-	d := slice_ptr(data as ^byte, len)
-	for i := 0; i < len; i++ {
-		d[i] = 0
-	}
+	llvm_memset_64bit :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) #foreign "llvm.memset.p0i8.i64"
+	llvm_memset_64bit(data, 0, len, 1, false)
 }
 
 memory_compare :: proc(dst, src: rawptr, len: int) -> int {
-	s1, s2: ^byte = dst, src
+	// TODO(bill): make a faster `memory_compare`
+	a, b := slice_ptr(dst as ^byte, len), slice_ptr(src as ^byte, len)
 	for i := 0; i < len; i++ {
-		a := ptr_offset(s1, i)^
-		b := ptr_offset(s2, i)^
-		if a != b {
-			return (a - b) as int
+		if a[i] != b[i] {
+			return (a[i] - b[i]) as int
 		}
 	}
 	return 0
 }
 
-memory_copy :: proc(dst, src: rawptr, n: int) #inline {
-	if dst == src {
-		return
-	}
-
-	v128b :: type {4}u32
-	assert(align_of(v128b) == 16)
-
-	d, s: ^byte = dst, src
-
-	for ; s as uint % 16 != 0 && n != 0; n-- {
-		d^ = s^
-		d, s = ptr_offset(d, 1), ptr_offset(s, 1)
-	}
-
-	if d as uint % 16 == 0 {
-		for ; n >= 16; d, s, n = ptr_offset(d, 16), ptr_offset(s, 16), n-16 {
-			(d as ^v128b)^ = (s as ^v128b)^
-		}
-
-		if n&8 != 0 {
-			(d as ^u64)^ = (s as ^u64)^
-			d, s = ptr_offset(d, 8), ptr_offset(s, 8)
-		}
-		if n&4 != 0 {
-			(d as ^u32)^ = (s as ^u32)^;
-			d, s = ptr_offset(d, 4), ptr_offset(s, 4)
-		}
-		if n&2 != 0 {
-			(d as ^u16)^ = (s as ^u16)^
-			d, s = ptr_offset(d, 2), ptr_offset(s, 2)
-		}
-		if n&1 != 0 {
-			d^ = s^
-			d, s = ptr_offset(d, 1), ptr_offset(s, 1)
-		}
-		return;
-	}
-
-	// IMPORTANT NOTE(bill): Little endian only
-	LS :: proc(a, b: u32) -> u32 #inline { return a << b }
-	RS :: proc(a, b: u32) -> u32 #inline { return a >> b }
-	/* NOTE(bill): Big endian version
-	LS :: proc(a, b: u32) -> u32 #inline { return a >> b; }
-	RS :: proc(a, b: u32) -> u32 #inline { return a << b; }
-	*/
-
-	w, x: u32
-
-	if d as uint % 4 == 1 {
-		w = (s as ^u32)^
-		d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
-		d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
-		d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
-		n -= 3
-
-		for n > 16 {
-			d32 := d as ^u32
-			s32 := ptr_offset(s, 1) as ^u32
-			x = s32^; d32^ = LS(w, 24) | RS(x, 8)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-			w = s32^; d32^ = LS(x, 24) | RS(w, 8)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-			x = s32^; d32^ = LS(w, 24) | RS(x, 8)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-			w = s32^; d32^ = LS(x, 24) | RS(w, 8)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-
-			d, s, n = ptr_offset(d, 16), ptr_offset(s, 16), n-16
-		}
-
-	} else if d as uint % 4 == 2 {
-		w = (s as ^u32)^
-		d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
-		d^ = s^; d = ptr_offset(d, 1); s = ptr_offset(s, 1)
-		n -= 2
-
-		for n > 17 {
-			d32 := d as ^u32
-			s32 := ptr_offset(s, 2) as ^u32
-			x = s32^; d32^ = LS(w, 16) | RS(x, 16)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-			w = s32^; d32^ = LS(x, 16) | RS(w, 16)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-			x = s32^; d32^ = LS(w, 16) | RS(x, 16)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-			w = s32^; d32^ = LS(x, 16) | RS(w, 16)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-
-			d, s, n = ptr_offset(d, 16), ptr_offset(s, 16), n-16
-		}
-
-	} else if d as uint % 4 == 3 {
-		w = (s as ^u32)^
-		d^ = s^
-		n -= 1
-
-		for n > 18 {
-			d32 := d as ^u32
-			s32 := ptr_offset(s, 3) as ^u32
-			x = s32^; d32^ = LS(w, 8) | RS(x, 24)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-			w = s32^; d32^ = LS(x, 8) | RS(w, 24)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-			x = s32^; d32^ = LS(w, 8) | RS(x, 24)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-			w = s32^; d32^ = LS(x, 8) | RS(w, 24)
-			d32, s32 = ptr_offset(d32, 1), ptr_offset(s32, 1)
-
-			d, s, n = ptr_offset(d, 16), ptr_offset(s, 16), n-16
-		}
-	}
-
-	if n&16 != 0 {
-		(d as ^v128b)^ = (s as ^v128b)^
-		d, s = ptr_offset(d, 16), ptr_offset(s, 16)
-	}
-	if n&8 != 0 {
-		(d as ^u64)^ = (s as ^u64)^
-		d, s = ptr_offset(d, 8), ptr_offset(s, 8)
-	}
-	if n&4 != 0 {
-		(d as ^u32)^ = (s as ^u32)^;
-		d, s = ptr_offset(d, 4), ptr_offset(s, 4)
-	}
-	if n&2 != 0 {
-		(d as ^u16)^ = (s as ^u16)^
-		d, s = ptr_offset(d, 2), ptr_offset(s, 2)
-	}
-	if n&1 != 0 {
-		d^  = s^
-	}
+memory_copy :: proc(dst, src: rawptr, len: int) #inline {
+	llvm_memcpy_64bit :: proc(dst, src: rawptr, len: int, align: i32, is_volatile: bool) #foreign "llvm.memcpy.p0i8.p0i8.i64"
+	llvm_memcpy_64bit(dst, src, len, 1, false)
 }
 
-memory_move :: proc(dst, src: rawptr, n: int) #inline {
-	d, s: ^byte = dst, src
-	if d == s {
-		return
-	}
-	if d >= ptr_offset(s, n) || ptr_offset(d, n) <= s {
-		memory_copy(d, s, n)
-		return
-	}
-
-	// TODO(bill): Vectorize the shit out of this
-	if d < s {
-		if s as int % size_of(int) == d as int % size_of(int) {
-			for d as int % size_of(int) != 0 {
-				if n == 0 {
-					return
-				}
-				n--
-				d^ = s^
-				d, s = ptr_offset(d, 1), ptr_offset(s, 1)
-			}
-			di, si := d as ^int, s as ^int
-			for n >= size_of(int) {
-				di^ = si^
-				di, si = ptr_offset(di, 1), ptr_offset(si, 1)
-				n -= size_of(int)
-			}
-		}
-		for ; n > 0; n-- {
-			d^ = s^
-			d, s = ptr_offset(d, 1), ptr_offset(s, 1)
-		}
-	} else {
-		if s as int % size_of(int) == d as int % size_of(int) {
-			for ptr_offset(d, n) as int % size_of(int) != 0 {
-				if n == 0 {
-					return
-				}
-				n--
-				d^ = s^
-				d, s = ptr_offset(d, 1), ptr_offset(s, 1)
-			}
-			for n >= size_of(int) {
-				n -= size_of(int)
-				di := ptr_offset(d, n) as ^int
-				si := ptr_offset(s, n) as ^int
-				di^ = si^
-			}
-			for ; n > 0; n-- {
-				d^ = s^
-				d, s = ptr_offset(d, 1), ptr_offset(s, 1)
-			}
-		}
-		for n > 0 {
-			n--
-			dn := ptr_offset(d, n)
-			sn := ptr_offset(s, n)
-			dn^ = sn^
-		}
-	}
+memory_move :: proc(dst, src: rawptr, len: int) #inline {
+	llvm_memmove_64bit :: proc(dst, src: rawptr, len: int, align: i32, is_volatile: bool) #foreign "llvm.memmove.p0i8.p0i8.i64"
+	llvm_memmove_64bit(dst, src, len, 1, false)
 }
 
 __string_eq :: proc(a, b: string) -> bool {
@@ -247,25 +116,36 @@ __string_eq :: proc(a, b: string) -> bool {
 }
 
 __string_cmp :: proc(a, b : string) -> int {
-	min_len := len(a)
-	if len(b) < min_len {
-		min_len = len(b)
+	// Translation of http://mgronhol.github.io/fast-strcmp/
+	n := min(len(a), len(b))
+
+	fast := n/size_of(int) + 1
+	offset := (fast-1)*size_of(int)
+	curr_block := 0
+	if n <= size_of(int) {
+		fast = 0
 	}
-	for i := 0; i < min_len; i++ {
-		x := a[i]
-		y := b[i]
-		if x < y {
-			return -1
-		} else if x > y {
-			return +1
+
+	la := slice_ptr(^a[0] as ^int, fast)
+	lb := slice_ptr(^b[0] as ^int, fast)
+
+	for ; curr_block < fast; curr_block++ {
+		if (la[curr_block] ~ lb[curr_block]) != 0 {
+			for pos := curr_block*size_of(int); pos < n; pos++ {
+				if (a[pos] ~ b[pos]) != 0 {
+					return a[pos] as int - b[pos] as int
+				}
+			}
+		}
+
+	}
+
+	for ; offset < n; offset++ {
+		if (a[offset] ~ b[offset]) != 0 {
+			return a[offset] as int - b[offset] as int
 		}
 	}
 
-	if len(a) < len(b) {
-		return -1
-	} else if len(a) > len(b) {
-		return +1
-	}
 	return 0
 }
 
@@ -278,26 +158,24 @@ __string_ge :: proc(a, b : string) -> bool #inline { return __string_cmp(a, b) >
 
 
 
-Allocation_Mode :: type enum {
+Allocation_Mode :: enum {
 	ALLOC,
 	DEALLOC,
 	DEALLOC_ALL,
 	RESIZE,
 }
 
-
-
 Allocator_Proc :: type proc(allocator_data: rawptr, mode: Allocation_Mode,
                             size, alignment: int,
                             old_memory: rawptr, old_size: int, flags: u64) -> rawptr
 
-Allocator :: type struct {
+Allocator :: struct {
 	procedure: Allocator_Proc;
 	data:      rawptr
 }
 
 
-Context :: type struct {
+Context :: struct {
 	thread_ptr: rawptr
 
 	user_data:  rawptr

examples/win32.odin

@@ -42,7 +42,7 @@ INVALID_HANDLE_VALUE :: (-1 as int) as HANDLE
 
 WNDPROC :: type proc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT
 
-WNDCLASSEXA :: type struct {
+WNDCLASSEXA :: struct {
 	size, style:           u32
 	wnd_proc:              WNDPROC
 	cls_extra, wnd_extra:  i32
@@ -54,7 +54,7 @@ WNDCLASSEXA :: type struct {
 	sm:                    HICON
 }
 
-MSG :: type struct {
+MSG :: struct {
 	hwnd:    HWND
 	message: u32
 	wparam:  WPARAM
@@ -191,7 +191,7 @@ PROC  :: type proc()
 wglCreateContextAttribsARBType :: type proc(hdc: HDC, hshareContext: rawptr, attribList: ^i32) -> HGLRC
 
 
-PIXELFORMATDESCRIPTOR :: type struct  {
+PIXELFORMATDESCRIPTOR :: struct  {
 	size,
 	version,
 	flags: u32