digraph Memory {
  // IR styles match graph/web/render.js; arrows are use -> definition.
  graph [bgcolor="#fafbfc" fontname="Helvetica" nodesep=0.35 ranksep=0.55 splines=ortho];
  node [fontname="Helvetica" fontsize=12 color="#758191" fontcolor="#152330" shape=box style="rounded,filled" fillcolor="#edf3f7"];
  edge [fontname="Helvetica" fontsize=9 color="#536477" fontcolor="#364352" arrowsize=0.7 penwidth=1.5];

  rankdir=RL;

  M [label="Prior x memory" shape=octagon style="filled" fillcolor="#dcecff"];
  L [label="Load p.x" shape=box style="rounded,filled" fillcolor="#edf3f7"];
  S [label="Store p.x" shape=octagon style="filled" fillcolor="#dcecff"];
  L -> M [color="#2867b2"]; S -> M [color="#2867b2"];
  S -> L [style=dashed,xlabel="execute load first"];
  Y [label="Store p.y: independent" shape=octagon style="filled" fillcolor="#dcecff"];
}