Overview of Compiler
Compiler
is a program (written in high-level language) that converts/translates/compiles
source program written in a high level language into an equivalent machine code
Source
program ——— compiler ———-> machine code
Compiler are written in a high level language . Sometimes a
compiler is written in the same language for which one is writing a compiler .
This is done through Bootstrapping.
Phases of Compiler
§ Intermediate-code
Generator (Produces Intermediate code)
§ Intermediate-code
optimizer (produces optimized intermediate code)
§ Target-code generator
(Produces target Machine code)
One of
the primary data structure that a compiler uses is a symbol table. This data
structure is used by all of the phases.
Compilers
may generate three types of code:
§ pure machine code
§ augmented code
§ virtual machine code
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