Compiler Design 5 min read
Code Optimization
Optimization is a program transformation technique, which tries to improve the code by making it consume less resources (i.e. CPU,…
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Peephole Optimization
1 Eliminating Redundant Loads and Stores 2 Eliminating Unreachable Code 3 Flow-of-Control Optimizations 4 Algebraic Simplification and Reduction in Strength…
Compiler Design 9 min read
Issues in the Design of a Code Generator
1 Input to the Code Generator 2 The Target Program 3 Instruction Selection 4 Register Allocation 5 Evaluation Order While…
Compiler Design 7 min read
Code Generation
Code generation can be considered as the final phase of compilation. Through post code generation, optimization process can be applied…
Compiler Design 16 min read
Access to Nonlocal Data on the Stack
1 Data Access Without Nested Procedures 2 Issues With Nested Procedures 3 A Language With Nested Procedure Declarations 4 Nesting…
Compiler Design 15 min read
Stack Allocation of Space
1 Activation Trees 2 Activation Records 3 Calling Sequences 4 Variable-Length Data on the Stack Almost all compilers for languages…
Compiler Design 5 min read
Storage Organization
From the perspective of the compiler writer, the executing target program runs in its own logical address space in which…
Compiler Design 9 min read
Translation of Expressions
1 Operations Within Expressions 2 Incremental Translation 3 Addressing Array Elements 4 Translation of Array References The rest of this…
Compiler Design 1 min read
Declarations
When we encounter declarations, we need to lay out storage for the declared variables. For every local name in a…
Compiler Design 1 min read
YACC
YACC stands for Yet Another Compiler Compiler. YACC provides a tool to produce a parser for a given grammar. YACC is…
Compiler Design 3 min read
LALR (1) Parsing
LALR refers to the lookahead LR. To construct the LALR (1) parsing table, we use the canonical collection of LR…
Compiler Design 1 min read
Parse tree and Syntax tree
When you create a parse tree then it contains more details than actually needed. So, it is very difficult to…