What is the purpose of intermediate code forms in a compiler?

To create an internal representation of a program that facilitates optimization and translation to target code.

Fill in the blank: A __________ is a tree in which each leaf represents an operand and each interior node an operator.

Syntax tree

True or False: Three-address code allows multiple operators on the right side of an instruction.

False. Three-address code permits at most one operator on the right side of an instruction.

Riddle: I can take the form of a pointer, a constant, or a name, and I'm used to refer to variables in a program's code. What am I?

An address

What distinguishes static single assignment form (SSA) from traditional three-address code?

In SSA, all assignments are to variables with distinct names.

Fill in the blank: A __________ is used to represent dependencies between semantic attributes in a syntax-directed definition.

Dependency graph

True or False: Type checking in a compiler is done exclusively at runtime.

False. Type checking can be done both at compile-time (static) and at runtime (dynamic).

What is the primary advantage of using quadruples over triples in intermediate code representation?

Quadruples allow instructions that compute a temporary to be moved without changing subsequent references, unlike triples.

Riddle: I am a technique that eliminates redundancy in code, making it shorter and faster without changing output. What am I?

Peephole optimization

Which of the following is a characteristic of basic blocks? A) They can contain jump statements B) They execute in sequence C) They can branch D) They can halt execution

B) They execute in sequence