diff --git a/lib/CodeGen/RenderMachineFunction.cpp b/lib/CodeGen/RenderMachineFunction.cpp
index f1d24bb..0f5f67d 100644
--- a/lib/CodeGen/RenderMachineFunction.cpp
+++ b/lib/CodeGen/RenderMachineFunction.cpp
@@ -670,17 +670,17 @@
        << indent + s(2) << "<tr>\n"
        << indent + s(4) << "<td>No Pressure</td>"
                     "<td>No physical registers of this class requested.</td>"
-                    "<td class=\"s-zp\">&nbsp;&nbsp;</td>\n"
+                    "<td class=\"p-z\">&nbsp;&nbsp;</td>\n"
        << indent + s(2) << "</tr>\n"
        << indent + s(2) << "<tr>\n"
        << indent + s(4) << "<td>Low Pressure</td>"
                     "<td>Sufficient physical registers to meet demand.</td>"
-                    "<td class=\"s-up\">&nbsp;&nbsp;</td>\n"
+                    "<td class=\"p-l\">&nbsp;&nbsp;</td>\n"
        << indent + s(2) << "</tr>\n"
        << indent + s(2) << "<tr>\n"
        << indent + s(4) << "<td>High Pressure</td>"
                     "<td>Potentially insufficient physical registers to meet demand.</td>"
-                    "<td class=\"s-op\">&nbsp;&nbsp;</td>\n"
+                    "<td class=\"p-h\">&nbsp;&nbsp;</td>\n"
        << indent + s(2) << "</tr>\n"
        << indent << "</table>\n";
   }