C++ (Cpp) DISubprogram::resolveCyclesの例

コード例 #1

ファイル: debuginfo.cpp プロジェクト: jdc8/llvmtcl

int
ReplaceFunctionVariables(
    ClientData clientData,
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const objv[])
{
    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "function variable...");
	return TCL_ERROR;
    }

    DISubprogram *function;
    if (GetMetadataFromObj(interp, objv[1], "function", function) != TCL_OK)
	return TCL_ERROR;
    std::vector<Metadata*> variables;
    for (int i=2 ; i<objc ; i++) {
	DILocalVariable *var;
	if (GetMetadataFromObj(interp, objv[i], "variable", var) != TCL_OK)
	    return TCL_ERROR;
	variables.push_back(var);
    }

    auto vars = function->getVariables();
    if (!vars->isTemporary()) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj(
		"can only replace variable list when temporary", -1));
	return TCL_ERROR;
    }

    vars->replaceAllUsesWith(MDNode::get(vars->getContext(), variables));
    function->resolveCycles();
    return TCL_OK;
}