• Aman Kumar (12085)
• Rohit Anurag (12585)
• Sahil Solanki (11624)
• Sudhir Kumar (12734)

• src
  • AddrDist: Address descriptor file.
  • BBGen: Basic block generation from given three address code.
  • Codegen: Generate Instructions from the IR, responsible for creating the Register and Address Descriptor for all available register and variables.
  • Config: Configuration file for operators, registers and Instr types.
  • FlowGraph: From the IR create nodes for each basic blocks.
  • IR: IR generation handler.
  • Lib: Library function handler.
  • NextUseLive: Finds next use and liveness for each statement in given basic block.
  • RegAlloc: Handles register allocation.
  • RegDis: Register descriptor file.
  • STManager: Symbol Tables Manager
  • SymbolTable: Symbol Table
  • TAC: In memory representation of 3 address code.
  • lexer: lexer file
  • parser: parser file
  • main: program start here.

- declarations of vars and functions.
- conditional if, if-else, if-elseif.
- ternary operator.
- switch case statement.
- for loop.
- while, do-while.
- break, continue.
- function call with params and return value.
- function call without a return statement
- echo supports.
- pre-Increment and pre-Decrement. 
- error handling for undefined decls and types.
- error handling for function params count and undefined functions.
- exit 
- dead code elimination
- print support for 4 character string

Test cases containing php src code.

- to wrap all things together.

In project folder run these command to make assembly code which goes in out.s file-

    ./run.sh test/switch.php

After generating assebmly code, run the spim assembler

    spim
    load "out.s"
    run