COMPILER DESIGN

Detailed explanation-1: -Intermediate code generator receives input from its predecessor phase, semantic analyzer, in the form of an annotated syntax tree. That syntax tree then can be converted into a linear representation, e.g., postfix notation. Intermediate code tends to be machine independent code.

Detailed explanation-2: -Phase 4: Intermediate Code Generation Once the semantic analysis phase is over the compiler, generates intermediate code for the target machine. It represents a program for some abstract machine. Intermediate code is between the high-level and machine level language.

Detailed explanation-3: -Semantic analysis is the third phase of compilation process. It checks whether the parse tree follows the rules of language. Semantic analyzer keeps track of identifiers, their types and expressions. The output of semantic analysis phase is the annotated tree syntax.

Detailed explanation-4: -The input to the code generator typically consists of a parse tree or an abstract syntax tree. The tree is converted into a linear sequence of instructions, usually in an intermediate language such as three-address code.

Detailed explanation-5: -Intermediate code can translate the source program into the machine program. Intermediate code is generated because the compiler can’t generate machine code directly in one pass. Therefore, first, it converts the source program into intermediate code, which performs efficient generation of machine code further.