Examples with Stmt org.mapleir.ir.code.Stmt used on opensource projects

Example 46 with Stmt

use of org.mapleir.ir.code.Stmt in project maple-ir by LLVM-but-worse.

the class BoissinotDestructor method sequentialize.

private void sequentialize(BasicBlock b) {
    // TODO: just rebuild the instruction list
    LinkedHashMap<ParallelCopyVarStmt, Integer> p = new LinkedHashMap<>();
    for (int i = 0; i < b.size(); i++) {
        Stmt stmt = b.get(i);
        if (stmt instanceof ParallelCopyVarStmt)
            p.put((ParallelCopyVarStmt) stmt, i);
    }
    if (p.isEmpty())
        return;
    int indexOffset = 0;
    Local spill = locals.makeLatestVersion(p.entrySet().iterator().next().getKey().pairs.get(0).targ);
    for (Entry<ParallelCopyVarStmt, Integer> e : p.entrySet()) {
        ParallelCopyVarStmt pcvs = e.getKey();
        int index = e.getValue();
        if (pcvs.pairs.size() == 0)
            throw new IllegalArgumentException("pcvs is empty");
        else if (pcvs.pairs.size() == 1) {
            // constant sequentialize for trivial parallel copies
            CopyPair pair = pcvs.pairs.get(0);
            CopyVarStmt newCopy = new CopyVarStmt(new VarExpr(pair.targ, pair.type), new VarExpr(pair.source, pair.type));
            b.set(index + indexOffset, newCopy);
        } else {
            List<CopyVarStmt> sequentialized = pcvs.sequentialize(spill);
            b.remove(index + indexOffset--);
            for (CopyVarStmt cvs : sequentialized) {
                // warning: O(N^2) operation
                b.add(index + ++indexOffset, cvs);
            }
        }
    }
}

Example 47 with Stmt

use of org.mapleir.ir.code.Stmt in project maple-ir by LLVM-but-worse.

the class SSADefUseMap method compute.

public void compute() {
    defs.clear();
    uses.clear();
    phiDefs.clear();
    phiUses.clear();
    Set<Local> usedLocals = new HashSet<>();
    for (BasicBlock b : cfg.vertices()) {
        for (Stmt stmt : b) {
            phiUses.getNonNull(b);
            usedLocals.clear();
            for (Expr s : stmt.enumerateOnlyChildren()) if (s.getOpcode() == Opcode.LOCAL_LOAD)
                usedLocals.add(((VarExpr) s).getLocal());
            build(b, stmt, usedLocals);
        }
    }
}

Example 48 with Stmt

use of org.mapleir.ir.code.Stmt in project maple-ir by LLVM-but-worse.

the class BasicBlock method clear.

@Override
public void clear() {
    Iterator<Stmt> it = statements.iterator();
    while (it.hasNext()) {
        Stmt s = it.next();
        s.setBlock(null);
        it.remove();
    }
}

Example 49 with Stmt

use of org.mapleir.ir.code.Stmt in project maple-ir by LLVM-but-worse.

the class BasicBlock method transfer.

public void transfer(BasicBlock to) {
    Iterator<Stmt> it = statements.iterator();
    while (it.hasNext()) {
        Stmt s = it.next();
        to.statements.add(s);
        s.setBlock(to);
        it.remove();
    }
}

Example 50 with Stmt

use of org.mapleir.ir.code.Stmt in project maple-ir by LLVM-but-worse.

the class BasicBlock method transferUp.

public void transferUp(BasicBlock dst, int to) {
    // FIXME: faster
    for (int i = to - 1; i >= 0; i--) {
        Stmt s = statements.remove(0);
        dst.add(s);
        s.setBlock(dst);
    }
}