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Category Archives: Compiler Design

Type checking is the process of verifying and enforcing constraints of types in values. A compiler must check that the source program should follow the… Read More
Prerequisite: LR Parser, SLR Parser SLR (1) grammar SLR stands for Simple LR grammar. It is an example of a bottom-up parser. The “L” in… Read More
Liveliness Analysis consists of a specified technique that is implemented to optimize register space allocation, for a given piece of code and facilitate the procedure… Read More
LR parser is a bottom-up parser. It is always used to deal with context-free Grammar (CFGs). It is generally used by computer programming language compilers… Read More
The first depth search of the graph visits all the nodes in the graph once, starting with the entry point and visiting the nodes as… Read More
A dependency graph is used to represent the flow of information among the attributes in a parse tree. In a parse tree, a dependency graph… Read More
The error may occur at various levels of compilation, so error handling is important for the correct execution of code. There are mainly five error… Read More
A basic block is a simple combination of statements. Except for entry and exit, the basic blocks do not have any branches like in and… Read More
A compiler is software that translates a high-level language into machine-understandable form. Typically, a compiler is made up of six states and the input code… Read More
Symbolic analysis helps in expressing program expressions as symbolic expressions. During program execution, functional behavior is derived from the algebraic representation of its computations. Generally,… Read More
Prerequisite – Introduction of Finite Automata Utility – To construct DFA from a given regular expression, we can first construct an NFA for the given… Read More
A syntax tree is a tree in which each leaf node represents an operand, while each inside node represents an operator. The Parse Tree is… Read More
Backpatching is basically a process of fulfilling unspecified information. This information is of labels. It basically uses the appropriate semantic actions during the process of… Read More
When the token pattern does not match the prefix of the remaining input, the lexical analyzer gets stuck and has to recover from this state… Read More
A compiler is system software that translates the source program written in a high-level language into a low-level language. The compilation process of source code… Read More

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