Yoshiki Vazquez-baeza / project2

Commit ed83c12e267fcbc4487773a0e93fb643fb84d557

Authored by Ajay Mohan 2015-12-04 16:28:06 -0800

Exists in master

Initial WorkList

Showing 1 changed file with 63 additions and 0 deletions Inline Diff

llvm/src/lib/CSE231/WorkList.cpp

File was created	1	//The Worklist Alogrithm
	2	//ARGS:
	3	// Lattic_Definition class
	4	// Function ptr
	5	// Initial State
	6	#include "llvm/ADT/StringMap.h"
	7	#include "llvm/IR/Function.h"
	8	#include "llvm/IR/Module.h"
	9	#include "llvm/IR/Instruction.h"
	10	#include "llvm/Pass.h"
	11	#include "llvm/Support/raw_ostream.h"
	12	#include "llvm/Support/InstIterator.h"
	13	using namespace llvm;
	14	namespace{
	15	class Edge{
	16	public:
	17	BasicBlock *BB;
	18	Instruction *IB;
	19	bool isBlock(false);
	20	bool isInstruction(false);
	21	}
	22	class CPElement{
	23	public:
	24	//The variable
	25	String variable;
	26	//the value it holds
	27	int value;
	28	}
	29
	30	void Worklist(Function *F)
	31	{
	32	SmallVector<Edge*,256> WorkList;
	33
	34	//Map of Edge(Basic Block/Instruction) to computed value
	35	std::map<Edge*, std::set<CPElement> M;
	36	//And its iterator
	37	std::map<Edge*, std::set<CPElement>::iterator MI;
	38
	39	//Null Element to initialize edge mappings
	40	CPElement ElementNull = new CPElement();
	41
	42	ElementNull.variable = new String("phi");
	43	ElementNull.value = -1;
	44
	45	//For every BasicBlock
	46	//Add them to the Map
	47	//And store ElementNull as their value
	48	for(Function::iterator BB = FB->begin(), BE = FB->end(); BB != BE; ++BB) {
	49	Edge BasicBlockEdge = new Edge();
	50	BasicBlockEdge.isBlock = true;
	51	BasicBlockEdge.BB = BB;
	52	M[BasicBlockEdge] = ElementNull
	53	for (BasicBlock::iterator IB = BB->begin(), IE = BB->end();IB != IE; ++IB) {
	54	//For every InstructionBlock
	55	//Add them to the Map
	56	//And store ElementNull as their value
	57	Edge InstructionEdge = new Edge();
	58	InstructionEdge.isInstruction = true;