[LLVMdev] MemoryDependenceAnalysis && MemDepResult

neda 8664 neda8664 at gmail.com
Tue Nov 1 12:21:44 PDT 2011

How can extract memory dependence among of instructions. I used the
following code but it find only one dep for a instruction.I want to get all
dependences for an instruction.

    MemoryDependenceAnalysis &mda = getAnalysis<MemoryDependenceAnalysis>();

            MemDepResult mdr = mda.getDependency(inst);

            if (mdr.isDef()) {
                Instruction *dep = mdr.getInst();

                if (isa<LoadInst>(inst)) {
                    if (isa<StoreInst>(dep)) {
                           //READ AFTER WRITE
                if (isa<StoreInst>(inst)) {
                    if (isa<LoadInst>(dep)) {
                          //WRITE AFTER READ
                    if (isa<StoreInst>(dep)) {
                         //WRITE AFTER WRITE
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