bitwise operations

compiler/ast/ast.odin

@@ -97,10 +97,17 @@ Expr_Kind :: enum u8 {
 	Comptime,
 	Negate,
 	Not,
+	Bit_Not,
 	Add,
 	Sub,
 	Mul,
 	Div,
+	Bit_And,
+	Bit_Or,
+	Bit_Xor,
+	Shift_Left,
+	Shift_Right,
+	Shift_Left_Saturating,
 	Eq,
 	Ne,
 	Lt,
@@ -165,6 +172,12 @@ Assignment_Op :: enum u8 {
 	Sub,
 	Mul,
 	Div,
+	Bit_And,
+	Bit_Or,
+	Bit_Xor,
+	Shift_Left,
+	Shift_Right,
+	Shift_Left_Saturating,
 }
 
 Stmt :: struct {
@@ -184,7 +197,7 @@ Stmt :: struct {
 	error_only: bool,
 	// Assignments store the lvalue in `target`, the right-hand side in `expr`,
 	// and the source operator in `assignment_op`. `Set` is ordinary `=`;
-	// the arithmetic variants are `+=`, `-=`, `*=`, and `/=`.
+	// the remaining variants preserve their corresponding compound operator.
 	assignment_op: Assignment_Op,
 	target:     Expr_Id,
 	expr:       Expr_Id,